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International Space Flight (ESA, Russia, China and others) => Indian Launchers => Topic started by: input~2 on 06/06/2013 09:34 am

Title: LIVE: PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: input~2 on 06/06/2013 09:34 am
PSLV has finally been selected to launch SPOT 7
(source (http://www.thehindu.com/sci-tech/isros-pslv-bags-new-clients-launch-orders/article4775873.ece))
Title: Re: PSLV C23 - SPOT 7 - 2014-Q1
Post by: input~2 on 06/09/2013 09:02 am
Planned launch date: 2014-Q1
Title: Re: PSLV C23 - SPOT 7 - 2014-Q1
Post by: Steven Pietrobon on 06/10/2013 07:43 am
That input-2. The article says

A date for SPOT-7 will be discussed when signing the agreement. “One can expect the launch from December onwards,” Dr. Radhakrishnan said.

so shouldn't you have Dec. 2013 as the launch date?
Title: Re: PSLV C23 - SPOT 7 - 2014-Q1
Post by: input~2 on 06/10/2013 08:39 am
That input-2. The article says

A date for SPOT-7 will be discussed when signing the agreement. “One can expect the launch from December onwards,” Dr. Radhakrishnan said.

so shouldn't you have Dec. 2013 as the launch date?
Well the operator (http://www2.astrium-geo.com/files/pmedia/public/r12317_9_spot6-7_technical_sheet.pdf) says 2014-Q1
Title: Re: PSLV C23 - SPOT 7 - 2014-Q1
Post by: Steven Pietrobon on 06/12/2013 06:00 am
Thanks input-2, but that document was created on 20 September 2012, so might be out of date.
Title: Re: PSLV C23 - SPOT 7 - 2014-Q1
Post by: input~2 on 06/12/2013 07:46 pm
Thanks input-2, but that document was created on 20 September 2012, so might be out of date.
Another document from the same source dated end April 2013 shows the same launch date of 2014-Q1
Title: Re: PSLV C23 - SPOT 7 - December 2013
Post by: input~2 on 07/01/2013 07:10 pm
On July 1, ISRO management said they will try to launch SPOT-7 in December 2013
Title: Re: PSLV C23 - SPOT 7 - December 2013
Post by: K210 on 09/26/2013 11:06 am
CanX-4, CanX-5 and AISSat will be orbited along with SPOT-7. Source: http://spaceref.com/calendar/calendar.html?pid=8203
Title: Re: PSLV C23 - SPOT 7 - December 2013
Post by: beidou on 09/26/2013 08:19 pm
Information on CanX-4 & CanX-5 Mission: https://www.utias-sfl.net/nanosatellites/CanX45/
Title: Re: PSLV C23 - SPOT 7 - December 2013
Post by: Steven Pietrobon on 09/27/2013 06:45 am
I believe that should be AISat (http://space.skyrocket.de/doc_sdat/aisat.htm), not to be confused with AISSat 2 (http://space.skyrocket.de/doc_sdat/aissat-1.htm), which is flying on Soyuz.
Title: Re: PSLV C23 - SPOT 7 - February 2014
Post by: input~2 on 10/06/2013 04:10 pm
Seems that the launch will occur in February:
Quote
Tender Type:     Public Tender     Currency:     INR
Description:     COMMUNICATION LINKS FOR PSLV-C-23/SPOT-7

Schedule
Seq No     Buyer Stage        Start Date & Time     Expiry Date & Time

8             PO Release         31-10-2013 10:00     31-01-2014 17:00
Title: Re: PSLV C23 - SPOT 7 - February 2014
Post by: input~2 on 10/19/2013 03:25 pm
Quote
..SPOT 7 set to be launched in the first quarter of 2014
http://www.gim-international.com/news/remote_sensing/satellite_imagery/id7663-astrium_grants_a_look_behind_the_scenes_of_spot_7.html
Title: Re: PSLV C23 - SPOT 7 - February 2014
Post by: isro-watch on 11/07/2013 04:35 am
From which country is AISSAT ?
Title: Re: PSLV C23 - SPOT 7 - February 2014
Post by: input~2 on 11/07/2013 05:03 am
From which country is AISSAT ?
It is spelt AISat
from Germany
http://www.dlr.de/irs/en/desktopdefault.aspx/tabid-6970/11520_read-26880/
Title: Re: PSLV C23 - SPOT 7 - NET February 2014
Post by: input~2 on 11/14/2013 03:13 pm
Seems that the launch will occur in February:
Quote
Tender Type:     Public Tender     Currency:     INR
Description:     COMMUNICATION LINKS FOR PSLV-C-23/SPOT-7

Schedule
Seq No     Buyer Stage        Start Date & Time     Expiry Date & Time

8             PO Release         31-10-2013 10:00     31-01-2014 17:00

Seems that the schedule for this procurement has been delayed:
Quote
Tender No:    ISTRAC/PURC/2013E0028601    Tender Ref. Date:    12-09-2013
Tender Type:    Public Tender    Currency:    INR
Description:    COMMUNICATION LINKS FOR PSLV-C-23/SPOT-7
Schedule
Seq No    Buyer Stage  Supplier Stage    Start Date & Time    Expiry Date & Time
1    Tender Release    -                           12-09-2013 10:00    25-09-2013 17:00
2    -                    Tender download        26-09-2013 10:01    07-11-2013 17:00
3    -                       Bid Submission         26-09-2013 10:01    07-11-2013 17:00
4    Bid Sealing    -                                  07-11-2013 18:00    11-11-2013 17:00
5    -                  Open Authorisation       12-11-2013 10:00    15-11-2013 17:00
6    Tender Opening    -                          15-11-2013 18:00    31-03-2014 17:00
7    Tender Evaluation    -                       15-11-2013 18:00    31-03-2014 17:00
8    PO Release    -                                 15-11-2013 18:00    31-03-2014 17:00

This could mean a delay for PSLV-C23 now NET April 2014
Title: Re: PSLV C23 - SPOT 7 - NET April 2014
Post by: Galactic Penguin SST on 04/05/2014 05:50 am
Looks like the launch is now in June. (http://www.business-standard.com/article/current-affairs/isro-to-study-stars-sun-114040401111_1.html)

Quote
ISRO, which successfully launched a GSLV with indigeonous cryogenic engine would conduct an experimental launch of GSLV Mark III in June this year, said Radhakrishnan. Another PSLV carrying a French satellite SPOT 7 and four other foreign satellites were also to be launched in the same month, he said.
Title: Re: PSLV C23 - SPOT 7 - end June 2014
Post by: AJA on 05/23/2014 09:07 pm
http://www.newindianexpress.com/states/kerala/Busy-Launch-Time-Ahead-for-the-ISRO/2014/05/14/article2223533.ece (http://www.newindianexpress.com/states/kerala/Busy-Launch-Time-Ahead-for-the-ISRO/2014/05/14/article2223533.ece)

Didn't know this..

Quote
The C-23 is a ‘PSLV-CA (Core Alone)’ model meaning that the rocket will not be sporting strap-on motors.
Title: Re: PSLV C23 - SPOT 7 - end June 2014
Post by: Skyrocket on 05/23/2014 09:40 pm
http://www.newindianexpress.com/states/kerala/Busy-Launch-Time-Ahead-for-the-ISRO/2014/05/14/article2223533.ece (http://www.newindianexpress.com/states/kerala/Busy-Launch-Time-Ahead-for-the-ISRO/2014/05/14/article2223533.ece)

Didn't know this..

Quote
The C-23 is a ‘PSLV-CA (Core Alone)’ model meaning that the rocket will not be sporting strap-on motors.

see here for the different flavours of the PSLV vehicle: http://space.skyrocket.de/doc_lau/pslv.htm
Title: Re: PSLV C23 - SPOT 7 - end June 2014
Post by: Stan Black on 05/24/2014 07:26 am
http://www.newindianexpress.com/states/kerala/Busy-Launch-Time-Ahead-for-the-ISRO/2014/05/14/article2223533.ece (http://www.newindianexpress.com/states/kerala/Busy-Launch-Time-Ahead-for-the-ISRO/2014/05/14/article2223533.ece)

Didn't know this..

Quote
The C-23 is a ‘PSLV-CA (Core Alone)’ model meaning that the rocket will not be sporting strap-on motors.

see here for the different flavours of the PSLV vehicle: http://space.skyrocket.de/doc_lau/pslv.htm

One question, do they vary the length of the fourth stage for the different loadings of propellant in PS4 stage: 0·8 (C18), 1·6 (C8, C9 & C12) and 2·5 (C14, C15, C20, C21)?

Also HPS3 from PSLV-C4?
http://www.bharat-rakshak.com/MONITOR/ISSUE5-3/arun.html
Title: Re: PSLV C23 - SPOT 7 - end June 2014
Post by: AJA on 05/24/2014 07:55 am

see here for the different flavours of the PSLV vehicle: http://space.skyrocket.de/doc_lau/pslv.htm (http://space.skyrocket.de/doc_lau/pslv.htm)


Quote
PSLV-CA (http://space.skyrocket.de/doc_lau_det/pslv-ca.htm)-PS1 / S-138 + 2 roll control eng.PS2 (L-40) / VikasPS3 / S-7PS4 (L-2.5) / 2 ?
[/size][/font]


I thought the RPY controls were all initiated through SITVC, but apparently, they're augmented by those two smaller strap-ons which are liquid motors.

Quote from: Wikipedia article on PSLV
Pitch and yaw control of the PSLV during the thrust phase of the solid motor is achieved by injection of an aqueous solution of strontium perchlorate in the nozzle to constitute Secondary Injection Thrust Vector Control System (SITVC). The injection is stored in two cylindrical aluminum tanks strapped to the solid rocket motor and pressurized with nitrogen. There are two additional small liquid engine control power plants in the first stage, the Roll Control Thrusters (RCT), fixed radially opposite one on each side, between the triplet set of strap-on boosters. RCT is used for roll control during the first stage and the SITVC in two strap-on motors is for roll control augmentation.

Title: Re: PSLV C23 - SPOT 7 - end June 2014
Post by: input~2 on 05/26/2014 09:31 am
Quote
The rocket launch is slated for last week of June.
Quote
piggybacking on the main luggage will be four more small satellites - two from Canada and one each from Germany and Singapore
http://www.newindianexpress.com/nation/Preparations-on-for-Commercial-Rocket-Launch/2014/05/22/article2238827.ece
Title: Re: PSLV C23 - SPOT 7 - end June 2014
Post by: m.prasad on 06/04/2014 02:35 pm
It seems that, initial preparations meeting held on Monday. The date is 26 June exact time is not mentioned. Pls refer the Eenadu Telugu newspaper (http://archives.eenadu.net/06-03-2014/news/newsitem.aspx?item=national&no=5)

Thx
~Prasad
Title: Re: PSLV C23 - SPOT 7 - June 26 2014
Post by: m.prasad on 06/11/2014 03:52 pm
Due to some technical glitches found in the vehicle, it is postponed to 27th June. PM Modi may visit on 30th June. So there is chance of delaying to that day.

Pls refer
Eenadu Paper (http://eenadu.net/news/newsitem.aspx?item=state&no=13)
Eenadu Paper Archived (http://archives.eenadu.net/06-11-2014/news/newsitem.aspx?item=state&no=13)

Thx
~Prasad
Title: Re: PSLV C23 - SPOT 7 - June 26 2014
Post by: Galactic Penguin SST on 06/11/2014 04:12 pm
Due to some technical glitches found in the vehicle, it is postponed to 27th June. PM Modi may visit on 30th June. So there is chance of delaying to that day.

Pls refer
Eenadu Paper (http://eenadu.net/news/newsitem.aspx?item=state&no=13)
Eenadu Paper Archived (http://archives.eenadu.net/06-11-2014/news/newsitem.aspx?item=state&no=13)

Thx
~Prasad

Given the target orbit plane of SPOT-7 is the same as SPOT-6 (and Pléiades-1A/B) - SSO w/ altitude = 694 km, inclination = 98.2º, LTAN = 22:00 hours, I guess the launch time is about the same as that of SPOT-6, i.e. ~04:30 UTC (~10 am local)? Can someone confirm?
Title: Re: PSLV C23 - SPOT 7 - NET June 27 2014
Post by: Artyom. on 06/13/2014 08:07 am
From ISRO Facebook
Title: Re: PSLV C23 - SPOT 7 - NET June 27 2014
Post by: input~2 on 06/13/2014 10:11 am
Isro to launch 4 satellites for its Antrix Corporation's clients by June end (http://forum.nasaspaceflight.com/Isro to launch 4 satellites for its Antrix Corporation's clients by June end)
(well, 4 +1 = 5!)
Title: Re: PSLV C23 - SPOT 7 - NET June 27 2014
Post by: ss1_3 on 06/13/2014 11:47 am
Launch planned for June 26

Quote
As of now, we have scheduled the launch of PSLV C23 at 9.50 am on June 26. A 52-hour countdown has been planned, which would commence at 6 AM on June 24," the ISRO official told PTI.

http://www.outlookindia.com/news/article/ISRO-Planning-to-Launch-French-Satellite-on-June-26/844429
Title: Re: PSLV C23 - SPOT 7 - June 26 2014 (ETD 1520UTC) tbc
Post by: AJA on 06/15/2014 08:11 am
Due to some technical glitches found in the vehicle, it is postponed to 27th June. PM Modi may visit on 30th June. So there is chance of delaying to that day.

Pls refer
Eenadu Paper (http://eenadu.net/news/newsitem.aspx?item=state&no=13)
Eenadu Paper Archived (http://archives.eenadu.net/06-11-2014/news/newsitem.aspx?item=state&no=13)

Thx
~Prasad

What technical glitches?

And I don't think they'd delay the mission simply because the Minister of Space would like to witness a launch. For starters, he'd publicly decry that - given that he's already been deriding the NaMo sycophancy. He'll be kept in the loop and wil hop on a plane when they're reasonably sure that they're going to go.

Google translate doesn't pick-up the text from the Eenadu website. They're using some different (not unicode) encoding for the Telugu text.
Title: Re: PSLV C23 - SPOT 7 - June 26 2014 (ETD 1520UTC) tbc
Post by: input~2 on 06/15/2014 03:51 pm
And I don't think they'd delay the mission simply because the Minister of Space would like to witness a launch.

Well, the PTI article in English says this:
Quote
Asked if there would be any change in the date of the launch, he said the date and time also depend on the availability of VIPs, if any, witnessing the launch.
Title: Re: Indian PSLV C23 - SPOT 7 - June 26, 2014 (04:20 UTC)
Post by: vyoma on 06/20/2014 05:46 am
From ISRO official Facebook page:
Quote
Integration of PSLV C23 is completed. The satellites (SPOT 7 from France, two satellites from Canada, and on each from Germany and Singapore) are also integrated with the launcher.
Title: Re: Indian PSLV C23 - SPOT 7 - June 26, 2014 (04:20 UTC)
Post by: Galactic Penguin SST on 06/20/2014 11:26 am
Looks like the launch has moved to 04:19 UTC on June 30 (see photo below).

It turns out that the rumored Indonesian cubesat isn't on board; instead there's VELOX-P1 from Singapore's Nanyang Technological University - sistercraft VELOX-P2 was launched last November on the multi-satellite Dnper rocket launch.
Title: Re: Indian PSLV C23 - SPOT 7 - June 26, 2014 (04:20 UTC)
Post by: Salo on 06/21/2014 06:44 am
June 20, 2014    PRINT THIS PAGE   
PSLV-C23 Launch Scheduled on June 30, 2014

The launch of ISRO's Polar Satellite Launch Vehicle, PSLV-C23, is scheduled on June 30, 2014 (Monday) from Satish Dhawan Space Centre SHAR, Sriharikota. The vehicle lift-off time is scheduled at 09:49 hrs IST.

PSLV-C23 will carry a 714 kg French Earth Observation Satellite SPOT-7 as the main payload. Also, the 14 kg AISAT of Germany, NLS7.1 (CAN-X4) & NLS7.2 (CAN-X5) of Canada each weighing 15 kg, and the 7 kg VELOX-1 of Singapore are being carried as co-passengers. These five satellites are being launched under commercial arrangements that ANTRIX has entered with the respective foreign agencies.

All the five satellites have been integrated with PSLV-C23 and the final phase of checks is progressing. The Mission Readiness Review (MRR) Committee and the Launch Authorisation Board (LAB) are meeting on June 27, 2014 to review the progress of prelaunch activities. After the clearance from LAB, the 49 hour count down for the mission will commence at 08:49 hrs IST on June 28, 2014.

http://www.isro.org/pressrelease/scripts/pressreleasein.aspx?Jun20_2014
Title: Re: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0419 UTC)
Post by: input~2 on 06/21/2014 03:36 pm
Some information on VELOX at
http://www.ntu.edu.sg/Bak_cnyang-scholars/Documents/TNP_110720_Viva%20la%20Velox.pdf
Title: Re: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0419 UTC)
Post by: ss1_3 on 06/22/2014 06:44 am
Due to some technical glitches found in the vehicle, it is postponed to 27th June. PM Modi may visit on 30th June. So there is chance of delaying to that day.

Pls refer
Eenadu Paper (http://eenadu.net/news/newsitem.aspx?item=state&no=13)
Eenadu Paper Archived (http://archives.eenadu.net/06-11-2014/news/newsitem.aspx?item=state&no=13)

Thx
~Prasad

What technical glitches?

And I don't think they'd delay the mission simply because the Minister of Space would like to witness a launch. For starters, he'd publicly decry that - given that he's already been deriding the NaMo sycophancy. He'll be kept in the loop and wil hop on a plane when they're reasonably sure that they're going to go.

Google translate doesn't pick-up the text from the Eenadu website. They're using some different (not unicode) encoding for the Telugu text.

Here you go:

Quote
Prime Minister Narendra Modi will be present for the launch of PSLV-C23 scheduled for June 30 from the Satish Dhawan Space centre, Shar, Sriharikota in SPSR Nellore district. Mr Modi will reach Shar by helicopter on the evening of June 29 for an overnight stay and witness the launch on the next day.

http://www.deccanchronicle.com/140622/nation-current-affairs/article/prime-minister-watch-pslv-launch-june-30
Title: Re: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0419 UTC)
Post by: AJA on 06/22/2014 10:54 am
Well, it doesn't say that it was postponed because he was going to make a visit... (Yes, I read that ISRO official's speculative statement, but that was speculative)..

But if they DID delay it for that, I'd be very annoyed.
Title: Re: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0419 UTC)
Post by: sanman on 06/23/2014 03:18 am
Well, it's well-known that the new PM has a strong interest in the space program, and considers it an example of the type of technological prowess he wants to promote:

http://timesofindia.indiatimes.com/India/PM-to-witness-launch-of-Isros-international-mission/articleshow/37053184.cms
Title: Re: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0419 UTC)
Post by: Salo on 06/23/2014 11:39 pm
http://www.isro.org/pslv-c23/Imagegallery/launchvehicle.aspx

Title: Re: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0419 UTC)
Post by: m.prasad on 06/25/2014 12:29 pm
ISRO is testing AINS (Advanced Interial Navigation System) in C23. It is mentioned in the brochure itself; I thought it was mentioned there casually but not :)

Here is the ref: Andhra Jyothi Today  (http://www.andhrajyothy.com/node/108528)

Thx
~Prasad
Title: Re: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0419 UTC)
Post by: AJA on 06/27/2014 06:28 am
ISRO is testing AINS (Advanced Interial Navigation System) in C23.

The brochure (http://www.isro.org/pslv-c23/pdf/pslv-c23-brochure.pdf) shows it mounted as a payload (pg 3). Is the AINS mounted to the fourth stage (and, separately, will it be navigating the 4th stage), or is it a separate payload in itself? Does it have any propulsion?

Also, the imaging resolution of SPOT-7, as mentioned in the brochure is different from that mentioned on Wikipedia, as well as the GIM-space article linked somewhere earlier in this thread.
Title: Re: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0419 UTC)
Post by: chota on 06/27/2014 06:33 am
Launch to be delayed by 3 mins to avoid space debris (http://timesofindia.indiatimes.com/india/Space-debris-may-delay-PSLV-C23-launch-by-three-minutes/articleshow/37306375.cms)

Title: Re: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0419 UTC)
Post by: chota on 06/27/2014 06:43 am
Quote
Is the AINS mounted to the fourth stage (and, separately, will it be navigating the 4th stage), or is it a separate payload in itself? Does it have any propulsion?

This is probably similar to the testing of "mini Redundant Strapdown Inertial Navigation System" or mRESINS payload flown on PSLV-C21.

It will be tested in this flight and if performance found satisfactory will be part of the standard set of electronics in the rocket equipment bay in subsequent flights
Title: Re: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0419 UTC)
Post by: antriksh on 06/27/2014 08:52 am
Is the AINS mounted to the fourth stage (and, separately, will it be navigating the 4th stage), or is it a separate payload in itself? Does it have any propulsion?

AINS will be mounted on PSLV equipment bay on the fourth stage. Equipment bay was designed to carry NGC&C electronics and later modified to also carry micro and nano sats.  AINS is based on optical sensors and  will be tested for navigation performance during the flight time.  AINS wont separate from the equipment bay. My guess, AINS will be part of LVM3.
Title: Re: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: jacqmans on 06/27/2014 12:27 pm
Press release, 27 June 2014


'Listening' for shipping traffic 

Full article with video and images:
http://www.dlr.de/dlr/presse/en/desktopdefault.aspx/tabid-10172/213_read-10775/year-all/#/gallery/15374


At first, the AISat satellite will be spinning rapidly after it has been carried into orbit by a launch vehicle that will depart from the Satish Dhawan Space Centre at Sriharikota, 80 kilometres north of Chennai, India, at 06:19 CEST on 30 June 2014.
Once the German Aerospace Center (Deutsches Zentrum fuer Luft- und Raumfahrt; DLR) satellite has stabilised, its main component will be deployed and brought into service – a four-metre-long helical antenna directed towards Earth will receive Automatic
Identification System (AIS) signals from maritime traffic. DLR researchers expect their first contact with the satellite at around 11:00 CEST on 30 June. The experimental satellite will identify and track vessels from an altitude of 660 kilometres
– paying particular attention to areas with high traffic density, such as the German Bight, an area in the southeast of the North Sea. Existing commercial satellites reach their operational limits with such large numbers of vessels.

Like the beam of a flashlight 

Researchers at the DLR Institute of Space Systems have found well over 1000 vessels during an overflight along the German coast from Holland to Sylt. Conventional satellites cover an area with a radius of at least 5000 to 6000 kilometres with their
non-directional antennas. "They receive everything at once – which would be equivalent to listening to 100 radio stations at the same time," says Project Manager Joerg Behrens. "The ships all broadcast their signals at once." In low traffic areas,
further away from the coastal regions, this is not a problem. In waters such as the North Sea, the Mediterranean Sea or the North American Atlantic coast and around major ports such as Beijing, Tokyo and Singapore, however, the AIS signals with their
information about position, identification, length and width, load, speed and direction can no longer be assigned to individual vessels. The DLR researcher and his team have therefore chosen an alternative technique – their helical antenna is oriented
directly towards Earth and receives AIS signals from a smaller area, with a diameter of only 750 kilometres. "It is focused like the beam of a flashlight," says Behrens.

To test the performance of the AISat satellite, the researchers will compare its data with information received from the ships by remotely operated ground stations. Currently, DLR has six terrestrial receiving stations on the German North Sea coast,
each of which has a range of between 40 and 60 kilometres. Four other stations are expected to be added. In addition, smaller, non-directional antennas are installed on AISat and will also provide comparative data. These control data from space and
Earth will be used to determine the performance of the helical antenna and receiver. "There is a lot of room for improvement in high-traffic regions – and our antenna could be a good way to do this." The unusual antenna was developed and tested in
microgravity conditions during parabolic flights in cooperation with the DLR Institute of Composite Structures and Adaptive Systems. The satellite and receiver were developed, built and tested at the DLR Institute of Space Systems.

Connection between Bremen and space 

Two to three times a day, researchers in Bremen will receive data from space as the satellite passes over northern Germany. AISat will be controlled and monitored from DLR Bremen. Another receiving station is to be installed at Inuvik, in Canada, to
extend the opportunities to receive data. If the helical antenna proves to be successful, it could be an alternative for future use on commercial satellite systems.

Before all this happens, the satellite has to withstand the stress of the launch. Exactly 1113.7 seconds after launch, AISat will be injected into orbit and then begin charging its batteries. In the first overpasses, only the health of the satellite
and its receiver will be checked. Once this has been accomplished, the command will be sent to deploy the helical antenna. Initially pointing towards space, instead of Earth, the satellite will employ small electromagnets to achieve the correct orientation.
"We rely, as it were, on the magnetic field of Earth," explains Behrens. Finally, the phase that is most exciting for the researchers at DLR will follow – AISat will listen to the radio signals sent from Earth's surface, and determine which ships it can 'hear' from orbit.
Title: Re: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: MATTBLAK on 06/27/2014 12:28 pm
That's some nice looking hardware and rocketry they've got there! :)
Title: Re: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Artyom. on 06/28/2014 07:34 am
ISRO @ISROOFFICIAL
The 49 hour countdown for the launch of PSLV C23 has just begun.

ISRO @ISROOFFICIAL
Filling of fuel into the fourth stage of PSLV C23 is successfully completed
Title: Re: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: AJA on 06/28/2014 08:58 am
NOTAM

Broadcast warnings - as compiled by the US National Geospatial-Intelligence Agency: http://msi.nga.mil/NGAPortal/MSI.portal?_nfpb=true&_pageLabel=msi_portal_page_63 (http://msi.nga.mil/NGAPortal/MSI.portal?_nfpb=true&_pageLabel=msi_portal_page_63)

Google Earth .kmz file: http://msi.nga.mil/NGAPortal/MSISiteContent/StaticFiles/Files/NAVWARN.kmz (http://msi.nga.mil/NGAPortal/MSISiteContent/StaticFiles/Files/NAVWARN.kmz)
Quote

HYDROPAC 1843/14 [5][[WWNWSFOLDER]]

INDIA-EAST COAST.
BAY OF BENGAL.
INDIAN OCEAN.
ROCKETS.


1. HAZARDOUS OPERATIONS 0345Z TO 0615Z DAILY
30 JUN THRU 02 JUL:

A. WITHIN TEN MILES OF 13-43.9N 080-14.2E.
B. IN AREA BOUND BY
12-10N 081-05E, 12-30N 081-30E,
11-50N 081-55E, 11-30N 081-30E.
C. IN AREA BOUND BY
09-05N 083-00E, 09-10N 083-35E,
08-00N 083-45E, 07-55N 083-10E.
D. IN AREA BOUND BY
00-25S 082-35E, 00-40S 083-45E,
03-10S 083-20E, 02-55S 082-10E.
E. IN AREA BOUND BY
28-35S 076-50E, 29-05S 079-10E,
35-55S 077-40E, 35-25S 075-20E.

2. CANCEL THIS MSG 020715Z JUL 14.//

Authority: NAVAREA VIII 350/14 191001Z JUN 14.

Date:
Cancel: 02071500 Jul 14


Straight-line distances between centres of exclusion zones: ~236 , 434, 1144, 3424 kms.

And #TIL that some 2008 kms south-southwest of the last exclusion zone are the French Southern and Antarctic Lands. "Look out below!" :P
Title: Re: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: input~2 on 06/28/2014 01:43 pm
Launch to be delayed by 3 mins to avoid space debris (http://timesofindia.indiatimes.com/india/Space-debris-may-delay-PSLV-C23-launch-by-three-minutes/articleshow/37306375.cms)
Interesting to note that the same motivated delay occurred for Spot-6 launch!
(http://forum.nasaspaceflight.com/index.php?topic=29471.msg951643#msg951643)
Title: Re: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: AJA on 06/29/2014 02:39 am
Haven't thought about this before - Is UDMH and/or N2O4 more corrosive/hazardous than MMH and/or MON-3? I ask because they've already completed (http://www.isro.org/pslv-c23/status.aspx) the tanking of the 4th stage, and the Reaction Control Thrusters attached to the first stage, but there's no mention of 2nd stage tanking as yet.


What's the reason to tank in the order that they do?
Title: Re: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: AJA on 06/29/2014 03:39 pm
1. Updates
MST withdrawn and parked. Second stage oxidiser loading complete.


2. News coverage
Attached: DD News report on TV from a few minutes ago (only managed to record audio).

The PM visited the launch pad and got a briefing on the PSLV and the mission. (https://www.facebook.com/isroofficial/photos/a.1448404935382864.1073741828.1448364408720250/1522621344627889/?type=1)
He also visited the VAB - where the assembly of the GSLV Mk III is taking place.

This is apparently Antrix Corporation's 3rd commercial (only?) launch (http://www.youtube.com/watch?v=GHuEDoDynK0#t=12.5s) (i.e. without an Indian payload), who are also forecasting a 15% (YoY?) turnover increase this time. (http://www.business-standard.com/article/current-affairs/antrix-expects-15-rise-in-turnover-114010600414_1.html) (2012-13 Revenue: Rs 1,300 crores).

Also, the MCC supposedly has a balcony (https://www.google.com/maps/@13.7243762,80.1839751,171m/data=!3m1!1e3) with a view of the pad. Why someone wouldn't watch the launch from there, as opposed to the indoor VIP area beats me.


EDIT: Pictures (https://twitter.com/PMOIndia/status/483262749829365761) from (https://twitter.com/PMOIndia/status/483263627684614144) @PMOIndia
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/29/2014 04:13 pm
Haven't thought about this before - Is UDMH and/or N2O4 more corrosive/hazardous than MMH and/or MON-3? I ask because they've already completed (http://www.isro.org/pslv-c23/status.aspx) the tanking of the 4th stage, and the Reaction Control Thrusters attached to the first stage, but there's no mention of 2nd stage tanking as yet.


What's the reason to tank in the order that they do?

Well, I tweeted this question to ISRO official twitter page! Hoping they would answer :)
https://twitter.com/vyomagaami/status/483226697429291008
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: bubbagret on 06/29/2014 04:20 pm
As to the corrosion, it depends on the alloys used as to what is susceptible to corrosion. From Wiki:

"When used as a propellant, dinitrogen tetroxide is usually referred to simply as 'Nitrogen Tetroxide' and the abbreviation 'NTO' is extensively used. Additionally, NTO is often used with the addition of a small percentage of nitric oxide, which inhibits stress-corrosion cracking of titanium alloys, and in this form, propellant-grade NTO is referred to as "Mixed Oxides of Nitrogen" or "MON". Most spacecraft now use MON instead of NTO; for example, the Space Shuttle reaction control system uses MON3 (NTO containing 3wt%NO)."
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: AJA on 06/29/2014 06:12 pm
Update: PS-2 Fuel loading completed (2310 IST).

Well, I tweeted this question to ISRO official twitter page! Hoping they would answer :)
https://twitter.com/vyomagaami/status/483226697429291008

Doubt it. It's one way flow on Twitter. They do reply on their Facebook page sometimes though.

I asked because I thought you'd fill from bottom up - for as much static stability as possible. Even if they didn't fill in the oxidiser (assuming the second stage oxidiser is more corrosive), they could still fill in the fuel (UDMH) - unless that too, is corrosive, or unstable etc.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: input~2 on 06/29/2014 07:04 pm
"Live Telecast by Doordarshan and Webcast of Launch will be available on June 30, 2014 from 09:15 hrs (IST)" i.e. from 0345UTC
Webcast at: http://webcast.gov.in/live/ (http://webcast.gov.in/live/)
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: sanman on 06/30/2014 12:07 am

Prime Minister to attend launch

https://www.youtube.com/watch?v=vt_SGEE98ag


This one is a day old:

https://www.youtube.com/watch?v=HQJDWyzmKv0
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Chris Bergin on 06/30/2014 12:26 am
Going to need you guys to cover this due to the bad timing for GMT.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: tehwkd on 06/30/2014 02:32 am
Countdown normal.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: tehwkd on 06/30/2014 02:48 am
Weather reports saying rain at 9 IST (T-0 at 9:52 IST) and sky is currently getting cloudy.

Source: http://ibnlive.in.com/livetv/
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 03:27 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 03:38 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 03:41 am
Live stream links:

ISRO Webcast:
http://webcast.isro.gov.in/
http://webcast.isro.gov.in/webcast-1.aspx
http://5.153.30.196/isro/webcast/300614/

Doordarshan News:
http://webcast.gov.in/live/

Doordarshan National:
http://www.youtube.com/watch?v=UR5S5nNbd4U


PM's Channel:
http://www.youtube.com/watch?v=vt_SGEE98ag
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: ss1_3 on 06/30/2014 03:47 am
Webcast has started.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 03:51 am
Weather looks fine.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 03:53 am
..
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 03:55 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: ss1_3 on 06/30/2014 03:57 am
PM arrives.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 03:59 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 03:59 am
Our Prime Minister.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:02 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:02 am
Launch conditions optimal.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:03 am
Launch window of 17 mins
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:03 am
T-10 mins
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:04 am
T-18
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: AJA on 06/30/2014 04:05 am
Launch window of 17 mins

Today's window lasts for 19 minutes (starting at 0949 IST, but reduced because of the potential conjunction, and the avoidance delay)
Local time at descending node at injection: 1002 hrs (Assuming SPOT 7)

Btw, saw some brown gas venting from the top stage much earlier. Don't recall seeing them on previous launches.. but I guess it's normal to top off/vent some oxidiser(?)
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:05 am
T-17mins
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: AJA on 06/30/2014 04:07 am
I think they're polling now.

Range green
Mission director also go.


Launch Director authorises the launch (slightly after T-15 min)
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:07 am
ALL READY!
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:08 am
ISRO bosses.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:08 am
Launch authorised. I think this is the launch key. T-14 minutes.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: ss1_3 on 06/30/2014 04:09 am
Mission director authorises launch. GO!!
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: AJA on 06/30/2014 04:09 am
ALS initialised (Slightly after T-14 min)

Onboard computer now controlling the vehicle

EDIT:

Quote from: ISRO website
Vehicle Director's authorisation for start of automatic launch sequence given at 09:36 hrs(IST)[/li][/list]
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:10 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:10 am
Few more pics.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:11 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:12 am
..
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: ss1_3 on 06/30/2014 04:12 am
T-10 mins
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:13 am
Customers..
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:14 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:15 am
11 m/s wind speed. Upper winds benign.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:15 am
SITVC.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:15 am
..
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: AJA on 06/30/2014 04:16 am
Aah..some specifics on Launch commit criteria.

Ground winds are below limits (15 m/s)
Upper atmospheric winds are also below limits.
DOLILU loads completed.

Q*alpha - 2800 Pa*Radian
Limiting Atmospheric electric field is 1000 V/m
 - No concerns.

Update: PSLV is on internal battery power.
External power disconnected.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:17 am
Vehicle on internal power.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: ss1_3 on 06/30/2014 04:17 am
T-5 mins
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: input~2 on 06/30/2014 04:18 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:18 am
T-5 mins
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:19 am
T-4 minutes.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:19 am
T-3 minutes.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:20 am
Mission director.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:20 am
T-2 mins
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:20 am
T-2 minutes.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:21 am
T-1 minute.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Artyom. on 06/30/2014 04:23 am
LAUNCH!
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:23 am
Launch!
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: ss1_3 on 06/30/2014 04:23 am
Liftoff!!
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:24 am
..
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: input~2 on 06/30/2014 04:24 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:24 am
PS1 seperated.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Artyom. on 06/30/2014 04:25 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:25 am
T+2 minutes. PS1 separated. PS2 ignited. PS2 performance normal.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:25 am
Heatshield separation.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:26 am
Payload fairing separated.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:26 am
HSS seperation
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: AJA on 06/30/2014 04:26 am
Sweet! :D Visible condensation around the PLF was something new this time round :)

Is it me, or did the smoke from the first stage seem greenish?

Interesting discontinuity/kink in the trace of vehicle trajectory vs expected one in the first stage. But separation's occurred.. and all is nominal.

PLF separation
Closed loop guidance initiated
PS2 separated, and PS3 ignited.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: ss1_3 on 06/30/2014 04:27 am
PS2 separated. PS3 ignited.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:27 am
Stage 2 separation. Stage 3 ignition.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: input~2 on 06/30/2014 04:27 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:27 am
PS2 separated. PS3 ignited.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:28 am
..
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:28 am
Any idea about this kink the actual trace after PS3 ignition. However, it got correct pretty soon afterwards. A bit of overperformance?
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: AJA on 06/30/2014 04:28 am
PS-3 motor cutoff. Coasting now.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:29 am
PS3 performance nominal.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: ss1_3 on 06/30/2014 04:29 am
Coasting started.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:30 am
Coasting normal!
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:30 am
Coast phase.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: input~2 on 06/30/2014 04:30 am
Webcast also on http://216.185.104.74/isro
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:30 am
In coast phase.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: AJA on 06/30/2014 04:31 am
Huh.. another kink in that plot, around the time of PS-3 sep/ PS-4 ignition

PS-3 separated. PS-4 ignition confirmed. PS-4 performance normal
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: input~2 on 06/30/2014 04:31 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: ss1_3 on 06/30/2014 04:32 am
PS3 separated. PS4 ignited.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:32 am
PS4 performance normal
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:32 am
PS4 ignited. PS4 performance normal.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:32 am
PS3 separation. PS4 ignition.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: input~2 on 06/30/2014 04:35 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:35 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:36 am
..
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: AJA on 06/30/2014 04:36 am
Waiting for PS-4 shutdown and payload injection.


Apparently, ISTRAC conduct a month-long network simulation with all the real-time tracking stations right up to the date of launch, to ensure seamless telemetry reception.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:36 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:37 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: input~2 on 06/30/2014 04:37 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:38 am
PS4 pressing ahead.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:39 am
PS4 performance nominal.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:39 am
..
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:40 am
Injection conditions achieved!!
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: AJA on 06/30/2014 04:40 am
PS-4 cutoff. ~T+1050s. Injection conditions achieved!


SPOT-7 successfully separated!

EDITs:
1110s - AISat separated
1141.4 - NLS 7.1 separated.
1171.4 - NLS 7.2 separated


Velox separated too! Mission accomplished :D
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:40 am
Ps4 cutoff. Injection conditions achieved.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:40 am
Injection conditions achieved!
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: ss1_3 on 06/30/2014 04:40 am
PS 4 shutoff.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: input~2 on 06/30/2014 04:40 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:40 am
;D SPOT-7 seperated!!
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:41 am
SPOT-7 separated :D
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:41 am
Spacecraft separation!
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:41 am
AIISAT seperated!!
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:41 am
AISAT separated :D
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:41 am
NLS 7.1 separated!!
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:42 am
NLS 7.1 separated. Go go go.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:42 am
NLS-7.2 separated !!
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:42 am
NLS 7.2 separated.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:42 am
NLS 7.2 separated.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: isro-watch on 06/30/2014 04:42 am
All satellites separated
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: ss1_3 on 06/30/2014 04:42 am
All satellites separated. Congratulations all around.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:43 am
Velox separated mission Successful!!!!! ;D ;D ;D
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Mapperuo on 06/30/2014 04:43 am
https://www.youtube.com/watch?v=wrmI05fmS_8
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:43 am
All sats separated!
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Artyom. on 06/30/2014 04:43 am
My congratulations  :) !
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:43 am
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:43 am
All sats separated.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: AJA on 06/30/2014 04:44 am
PM Narendra Modi addressing the MCC (I'll keep editing, to limit the number of comments)

"Congratulations to everybody"

Notice that he's speaking in English. Which he hardly ever does. International marketing to the hilt!

"This is one domain where we are at the international cutting edge. A domain in which we have pushed beyond mediocrity to achieve excellence"

Talking about the commercial aspect of today's launch.

Credits Chandrayaan to Atal Bihari Vajpayee ji's inspiration. Says he personally follows Mangalyaan.

Refers to IRNSS/GAGAN and says that it will be operational in 2015.

Talking about the resource limitations of our space program. The usual pat on the back for being "most cost-effective", and doing things indigenously despite obstacles.

Refers to Mangalyaan being cheaper than "Gravity"

Our scientists have shown the world a new paradigm of frugal engineering and the power of imagination.

Our success has deep historical roots. Clever Hindi wordplay. Upanishads --> Upagrah (Satellites).

A mention of the Indian invention of zero, and the contribution of ancient Indian scientists - Bhaskaracharya, Aryabhatta...


I think he's channeling his inner Sarabhai now. "Many misunderstand space technology to be for the elite."
"It is our first responsibility to eliminate this perception."
"Scientific advancement ultimately helps the common man."
"Sometimes we only realise the value of a body part when we lose it"

Reassuring the scientists about the same.

A mention of tele-education and tele-medicine. Talking about the employment opportunities offered to the youth (his biggest demo) by space technology. Talking about how it bridges physical divides.

Talking about GIS driven watershed development being driven by policy, and how it helps in urban development (again, appealing to another of his demos - the urban poor, and urban middle class).

"Our next endeavour should be to extend the same to land-records. Our law requires that land-records be updated atleast every thirty years." He says that the scientists are carrying out the work of Todar Mal! lol. Now talking about disaster management.


"India's space program is thus driven by a desire of service to humanity, not by a pursuit of power. We must therefore, share the fruits of our technological development with those who do not enjoy the same. The developing world, and our neighbours in particular."


Benefits of telemedicine being provided to Afghanistan, and African countries, as well as sharing disaster management data.


"Today, I ask our space community to take up the challenge of developing a SAARC satellite - that we can dedicate to our neighbourhood as a gift satellite. A satellite that offers the full range of applications and services to them." To help in their fight against poverty, instability, and help them in the challenges of educating their populace, and  - so that we can also partake in their development.


"I propose that you enlarge the footprints of our satellite base navigation system to cover all of South Asia."

Continued progress in space must remain a national mission.

"We must also strengthen our international partnership in all areas of space technology. India has a potential for becoming the launch service provider of the world. We should construct our new launch infrastructure, and develop the capability to launch heavier satellites."

"Development of HR will be critical to our future success. Let us link up with more universities and colleges to develop our future leaders in this area. I was very happy that I got to meet four generations of scientists here. This in itself is a sign of development. We must also involve our youth, at large, in space."


A reference to the Bhuvan (http://bhuvan.nrsc.gov.in/bhuvan/) space portal. What steps can we take to increase the sharing of data? What about a state of the art, interactive, digital space museum?


"In conclusion, I want to emphasise how technology is central to development."

Ends by wishing ISRO the best for MOI.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 04:44 am
"Congratulations to everybody."
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:45 am
ISRO modified!!! ;D
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:45 am
PM congratulating ISRO :D
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: vyoma on 06/30/2014 04:50 am
Shri Modi joking about the movie "Gravity" ;)
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 04:50 am
Frugal Engineering!!

Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: input~2 on 06/30/2014 04:52 am
Shri Modi joking about the movie "Gravity" ;)
I think he said that the Mars probe program cost less than the "Gravity" movie ;)
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: ss1_3 on 06/30/2014 05:01 am
Country should develop a SAARC satellite. Interesting.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: antriksh on 06/30/2014 05:02 am
SAARC Satellite!!
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: ss1_3 on 06/30/2014 05:06 am
PM: We should develop a digital space museum.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: ss1_3 on 06/30/2014 05:12 am
That's it then? No ISRO chairman speech? Interesting.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: sanman on 06/30/2014 05:12 am
I'm impressed - Sri Narendra Modi normally doesn't give public addresses in english, but I feel he made the extra effort for this occasion because he really wants to give wholehearted support to the space program. He wanted to convey to all listeners, including international observers, how much forward progress on the frontier of space means to him and his policy platform.

Heck, he's going around to every launch technician and shaking every one of their hands personally.  :D
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (ETD 0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 05:13 am
To those who asked about the kinks in the trajectory plots, these are seen in the inertial velocity diagrams and are quite normal. At stage cutoff, velocity will suddenly decrease since there is no more thrust to keep velocity increasing. The vehicle is in free fall. At lower altitudes and speeds where centripetal force is low, the velocity will decrease quickly. At higher altitudes and speed, the centripetal force is higher and so the velocity will decrease slowly. At stage ignition, velocity will start increasing again.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: AJA on 06/30/2014 05:18 am
That's it then? No ISRO chairman speech? Interesting.

Protocol says you can't have the senior-most official's speech being followed by his deputy. ISRO'll put out a press release detailing the final orbit. It's not like the Chairman takes questions anyway, so there was no guarantee of getting any information about the upcoming GSLV launch either.

To those who asked about the kinks in the trajectory plots, these are seen in the inertial velocity diagrams and are quite normal. ...

It wasn't about the sharp change of the shape in the curve itself. But the mismatch, and the discontinuity in the "actual" trace. Have a look at the lower left corner of the picture in this post (http://forum.nasaspaceflight.com/index.php?topic=32095.msg1220789#msg1220789)
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: Chris Bergin on 06/30/2014 05:45 am
Well I was a bit upset and worried about not being able to cover this myself (made myself ill the last time I stayed up all night and went to work on a few hours sleep, so I couldn't risk that again), but I had nothing to worry about as this was superb coverage!

Really appreciate the work here from Steven and our Indian friends (and Artyom I see too). I do love it when it's literally an international effort with the coverage. That's how space flight should be.

And here's the article (should have gone on before launch - see above as to why it wasn't).

By William Graham, so you know it's worth the read:
http://www.nasaspaceflight.com/2014/06/indias-pslv-successfully-lofts-spot-7-companions/

Congrats to ISRO and all concerned!
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: Steven Pietrobon on 06/30/2014 06:06 am
It wasn't about the sharp change of the shape in the curve itself. But the mismatch, and the discontinuity in the "actual" trace. Have a look at the lower left corner of the picture in this post (http://forum.nasaspaceflight.com/index.php?topic=32095.msg1220789#msg1220789)

OK, thanks for clarification. What we are seeing is a measured signal, and there can sometimes be glitches in the data, caused by noise and interference. I think that is what we are seeing here. A famous example of a glitch was the first launch of Europa in May 1966. The trajectory momentarily diverged from its path towards the cutoff bounds due to a glitch in the data, at which point the overenthusiastic range safety officer sent the destruct signal. Just after the signal was sent, the plot returned to normal.

Really appreciate the work here from Steven and our Indian friends (and Artyom I see too). I do love it when it's literally an international effort with the coverage. That's how space flight should be.

Thanks Chris. Glad to be of help.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: AJA on 06/30/2014 06:38 am
A famous example of a glitch was the first launch of Europa in May 1966. The trajectory momentarily diverged from its path towards the cutoff bounds due to a glitch in the data, at which point the overenthusiastic range safety officer sent the destruct signal. Just after the signal was sent, the plot returned to normal.

<In such wide-eyed surprise, that my eyebrows are in orbit. Simultaneously suppressing the impetus to laugh>

Please tell me that the FTS fortuitously malfunctioned...?

EDIT:
...and no. The FTS fulfilled its design role. (http://en.wikipedia.org/wiki/Europa_(rocket)#Project_history) <Why am I laughing? I swear I don't endorse schadenfreude!>
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: Artyom. on 06/30/2014 09:00 am
Launch photo
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: jacqmans on 06/30/2014 09:34 am
PM witnesses successful launch of PSLV-C23 in Sriharikota
 Calls for maximizing use of space science in governance and development
“India’s space programme driven by a vision of service to humanity”
 “Develop a SAARC satellite as a gift from India”


June 30, 2014

The Prime Minister, Shri Narendra Modi, today witnessed the successful launch of the Polar Satellite Launch Vehicle – PSLV-C23 from Sriharikota. In his congratulatory address at the Mission Control Centre after the landmark launch, the Prime Minister called upon the space community to proactively engage with all stakeholders to maximize the use of space science in governance and development. India must fully harness this expertise in space technology in the developmental process for social change, economic development and resource conservation, he added.

Speaking of India’s age-old ethos of the whole world being one family, the Prime Minister said India’s space programme is driven by a vision of service to humanity, not a desire of power. He said India has a rich heritage of science and technology, including space. Shri Modi said the works of our ancestors, who included visionaries like Bhaskaracharya and Aryabhata, still continue to inspire generations of scientists. He added that India must share the fruits of its advancement in space technology with the developing world, and neighbours in particular. He called upon the space community to take up the challenge of developing a SAARC satellite that can be dedicated to our neighbourhood as a gift from India.

Shri Modi said we can be proud of the Indian space programme, which is fully indigenous, developed in the face of great international pressure and hurdles. He described it as a domain where “we have pushed beyond mediocrity to achieve excellence.” He said the moon mission was inspired by the vision of former Prime Minister, Shri Atal Bihari Vajpayee. Among ongoing projects, Shri Modi referred to the Mars Mission, and the satellite-based navigation system.

Referring to the benefits of space technology for the common man, the Prime Minister said it drives modern communication, empowers children in remote villages with quality education, and ensures quality healthcare to all, through telemedicine. He said it has a critical role in realizing the vision of a Digital India – the power of 125 crore connected Indians.

The Prime Minister said continued progress in space must remain a mission of high priority. He called for developing more advanced satellites and expanding our satellite footprint. He said India has the potential to be the launch service provider of the world and must work towards this goal.

The Prime Minister called for involving India’s youth with space. Shri Modi said he was pleased to have met the young scientists as Sriharikota, and admired their work and their achievements. He commended Dr. K. Radhakrishnan for his leadership, and said India’s space programme is the best example of his vision of scale, speed and skill. He wished the team of scientists the best as they prepare to insert our spacecraft into the orbit of Mars in a few months.

In a speech made in a combination of English and Hindi, Shri Modi spoke of the Tapasya made by generations of scientists, in a long journey from Upanishad to Upagrah. He remarked that he had met four generations of scientists during his visit to ISRO.

Andhra Pradesh Governor Shri Narasimhan, Andhra Pradesh Chief Minister Shri Chandrababu Naidu, Minister of Parliamentary Affairs Shri Venkaiah Naidu, MoS, PMO Dr. Jitendra Singh, Secretary Space Dr. Radhakrishnan, and eminent scientists Prof U R Rao, Dr. Kasturirangan were present on the occasion.

http://pmindia.nic.in/details110.php
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: vyoma on 06/30/2014 10:03 am
Here's Astrium press release about SPOT-7 deployment:
http://www.astrium-geo.com/spot7-launch-success-en/


By the way, any info on objects catalogued by USSTRATCOM?
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: robertross on 06/30/2014 01:21 pm
My congratulations to India and the teams for this successful launch.

And thanks to all for the early morning coverage!
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: input~2 on 06/30/2014 02:17 pm
By the way, any info on objects catalogued by USSTRATCOM?
No object catalogued yet (should be 2014-034A /40053)
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: sanman on 06/30/2014 03:25 pm
The honorable Prime Minister of India's post-launch congratulatory speech to ISRO following the successful PSLV C-23 mission:

https://www.youtube.com/watch?v=5QbL6e96oo0


Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: AJA on 06/30/2014 08:52 pm

Didn't find this in any of the other screen-shots, and I don't immediately recall seeing it for other launches.


Great shot of the shock condensation collar (http://www.nepaliheadlines.com/en/pslv-c23-puts-spot-7-satellites-precise-orbits-21024)



(http://www.nepaliheadlines.com/en/wp-content/uploads/2014/06/Indian-satellite.jpg)
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: sanman on 06/30/2014 09:21 pm
Full Text of PM Narendra Modi's Speech at ISRO Post PSLV Launch

http://www.outlookindia.com/news/article/PM-Modis-Speech-at-ISRO-Post-PSLV-Launch-Full-Text/847412

Quote
My congratulations to our brilliant space scientists, and the Department of Space; for yet another successful launch of the Polar Satellite Launch Vehicle! We have perfectly placed 5 satellites into their orbits 660 km above the Earth.

This fills every Indian's heart with pride. And I can see it reflected in the joy and satisfaction on your faces..

Fascinated by Space Technology, I feel specially privileged to witness this event in person.

India's advanced space programme puts her in an elite global group of 5-6 countries today. This is one domain, in which we are at the international cutting edge, a domain in which we have pushed beyond mediocrity to achieve excellence.

We have launched satellites of advanced nations. PSLV itself has launched 67 satellites; of which 40 have been foreign satellites, coming from 19 countries. Even today's satellites, are all from developed nations - France, Canada, Germany and Singapore. Truly, this is a global endorsement of India's space capabilities.

Inspired by Atal ji's vision, we have sent a mission to the Moon. Another is on its way to Mars as we speak. I personally follow it with great interest. We have also developed our own satellite-based navigation system. I am told this will be fully deployed by 2015.

Moreover, we can be proud that our space program is indigenous. We have developed it despite international hurdles.

Generations of our space scientists have worked to make India a self-reliant space power. We owe them a big thank you.

Our journey into space has come a long way from its humble beginnings. It has been a journey of many constraints and resource limitations. I have seen photographs of rocket cones being transported on bicycles. Our first satellite, Aryabhatta, was made in industrial sheds in Bangalore.

Even today, our program stands out as the most cost effective in the world. The story of our Mars Mission costing less than the Hollywood movie Gravity, had gone viral on social media recently. Our scientists have shown the world, a new paradigm of Frugal Engineering, and the power of Imagination. Friends, this success of ours has deep historical roots.

India has a rich heritage of science and technology, including in the field of space. An understanding of the cosmos, and its relationship to Life and Science; is deeply rooted in our ancient thought and knowledge. Our ancestors had conceived of ideas like 'Shunya' and 'flying objects', long before others. The works of visionaries like Bhaskaracharya and Aryabhata, continue to inspire scientists.

Many misunderstand space technology to be for the elite. That it has nothing to do with the common man. I however believe, such technology is fundamentally connected with the common man. As a change agent, it can empower and connect, to transform his life. Technology opens up new opportunities of development and gives us new ways of addressing our challenges.

Space may seem distant, but is an integral part of our daily life today. It drives our modern communication, connecting even the remotest family to the mainstream. It empowers the child in the farthest village with quality education, through Long-distance Learning. It ensures quality healthcare to the most distant person, through Tele-medicine. It enables the youth in a small town, with various new job opportunities. Satellite technology has made distance irrelevant. It effectively enables us to reach the unreached. It helps us connect virtually, where physical connections are difficult.

It has a critical role, in realizing the vision of a Digital India - the power of 125 crore connected Indians.

GIS technology has transformed policy planning, and implementation. Space imaging enables modern management, and conservation of water resources - through GIS-driven watershed development. It has been deployed in our urban planning, to scientifically manage our growing towns and cities. It has also become an important tool, in better managing, and conserving our natural resources.

Whether it be the Himalayan glaciers, oceans and forests, coastal resources or our mineral wealth. Space imagery is improving our land management systems, bringing wasteland into productive use. Our next frontier, should be to extend the same to land records, bringing in accuracy and transparency for the common man.

Space technology has also evolved into an invaluable asset in disaster management. Satellite communication channels, often end up being the only mode of communication. Accurate advanced warning, and tracking of Cyclone Phailin, saved countless lives recently.

We must as a nation, fully harness this expertise in space technology, in our developmental process. For social change, economic development, and resource conservation. The possibilities are limitless. The benefits enormous. I urge the Department of Space, to proactively engage with all stakeholders, to maximize the use of space science in Governance and Development. Deepening of State involvement will be critical for the same.

Friends, India is rooted in our age-old ethos of Vasudeiva Kutumbakam. Of the whole world being one family. India's space programmee is thus driven by a vision of service to humanity. Not by a desire of power. For us, it is an important instrument of our human progress.

We must therefore, share the fruits of our technological advancement, with those who do not enjoy the same. The developing world and our neighbours in particular. We already share Disaster Management data with over 30 countries. We provide benefits of Tele medicine to Afghanistan and African countries. But we must do more!

Today, I ask our Space community, to take up the challenge, of developing a SAARC Satellite - that we can dedicated to our neighbourhood, as a gift from India. A satellite, that provides a full range of applications and services, to all our neighbours. I also ask you, to enlarge the footprint of our satellite-based navigation system, to cover all of South Asia.

Friends, continued progress in space must remain a national mission. We must keep enhancing our space capabilities. We must develop more advanced satellites; with higher computing, imaging and transmitting power. We must expand our satellite footprint, in terms of frequency and quality. We must also strengthen our international partnerships in all areas of Space technology.

India has the potential, to be the launch service provider of the world. We must work towards this goal. Construct the required new launch infrastructure. And extend our launching capabilities to heavier satellites.

Development of human resources, will be critical for our future success. I was very pleased to meet our young scientists here. I admire their work and their achievements. Let us link up with more universities and colleges, to develop our future leaders in this area. We must also involve our youth at large, with Space.

You have already started putting a lot of space-related data online, through your Bhuvan space portal. What steps can we take to further increase access to data, by students and researchers? Let us use Social Media to further engage with our youth. Let us invite school and college children, to witness launches and visit Space centres. Could we also think of developing, a state-of-the-art, interactive, digital Space Museum?

In conclusion, I want to emphasize how Technology is central to Development. It touches one and all, and is an important instrument of our national progress.

India's Space program is a perfect example of my vision of Scale, Speed and Skill. Our Space scientists have made us global leaders, in one of the most complex areas of modern technology. This shows that we can be the best. If we apply ourselves, we can meet the aspirations of our people.

Let us take inspiration from today's mission. Dedicate ourselves to accelerate our nation's progress. I am confident We Can!

I thank the Department of Space, for this opportunity to witness the launch. I commend Dr. K. Radhakrishnan for his leadership. I wish the team the very best, as you prepare to put our spacecraft into the Mars Orbit, in a few months from now. I wish you every success, as you strive to master new technologies, and conquer new frontiers of Space. May all your endeavours meet with success!

Thank you!
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: antriksh on 07/01/2014 02:57 am

Didn't find this in any of the other screen-shots, and I don't immediately recall seeing it for other launches.


Great shot of the shock condensation collar (http://www.nepaliheadlines.com/en/pslv-c23-puts-spot-7-satellites-precise-orbits-21024)


Its a regular phenomenon

(https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-prn1/62650_10151474339758224_1693077106_n.jpg)

and its explanation:

The clouds result from condensation, which denotes the formation of water droplets suspended in the atmosphere just like dew on the blades of grass. Condensation takes place when the local temperature becomes equal to or less than the dew point. In aircrafts and launch vehicles, the local flow aerodynamics causes reduction in local temperature leading to condensation.

Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: AJA on 07/01/2014 03:26 am
Its a regular phenomenon

Regular... only IF the local conditions (atmospheric temperature, humidity) as well as the flight profile combine favourably. If you launch somewhere above the Atacama desert, I doubt you'd get such a collar.

Since I didn't recall having seen it on any other PSLV launch, I thought it was a rare occurrence - atleast for a PSLV from SHAR. But the strap-on boosters in your picture indicate that it isn't of C-23. Which launch is that?
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: vyoma on 07/01/2014 12:46 pm
Signals received from DLR AISat:
http://www.dlr.de/dlr/presse/en/desktopdefault.aspx/tabid-10172/213_read-10812/#/gallery/15477

Now, trying to find some info on NLS 7.1, 7.2 and VELOX-1.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: antriksh on 07/01/2014 01:18 pm
Its a regular phenomenon

Regular... only IF the local conditions (atmospheric temperature, humidity) as well as the flight profile combine favourably. If you launch somewhere above the Atacama desert, I doubt you'd get such a collar.

Since I didn't recall having seen it on any other PSLV launch, I thought it was a rare occurrence - atleast for a PSLV from SHAR. But the strap-on boosters in your picture indicate that it isn't of C-23. Which launch is that?

regular for pslv
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: input~2 on 07/01/2014 07:47 pm
6 objects have now been catalogued by USSTRATCOM:

SPOT-7 2014-034A/40053 in 643 x 660 km x 98.26°
AISAT   2014-034B/40054 in 643 x 660 km x 98.25°
CANX-4 2014-034C/40055 in 642 x 659 km x 98.26°
CANX-5 2014-034D/40056 in 643 x 656 km x 98.27°
VELOX-1 2014-034E/40057 in 642 x 655 km x 98.26°
PSLV 4th stage 2014-034F/40058 in 622 x 654 km x 98.19°
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: jacqmans on 07/02/2014 06:08 pm
Press release, 1 July 2014


AISat satellite transmits from space

Full article with images:
http://www.dlr.de/dlr/presse/en/desktopdefault.aspx/tabid-10172/213_read-10812/year-all/#/gallery/15477


Right on schedule, at 06:19 CEST on 30 June 2014, the German Aerospace Center (Deutsches Zentrum fuer Luft- und Raumfahrt; DLR) AISat satellite journeyed into space aboard the PSLV-C23 launcher that departed from the Satish Dhawan Space
Centre at Sriharikota, in India. The 14-kilogram satellite, with which DLR researchers will receive signals from ships, was injected into orbit at an altitude of 660 kilometres according to plan, 1113.7 seconds after lift-off. At 09:30
CEST, the first signal from the satellite reached the control room at the DLR Institute of Space Systems.

"We know that the spacecraft is alive, and it is sending us data about his health," said Falk Nohka from the AISat team. The first signal was a call sign, which included some basic information and was sent to Earth in Morse code. This
beacon was not only heard in Bremen, but also by hobbyists from around the world. "We have been receiving reports from Brazil to the Netherlands about it." During the first flight over Bremen, the DLR researchers had six minutes of contact
with the satellite at 11:05 CEST. One and a half hours later, they were able to keep contact with and download data from AISat for seven minutes.

Once it has been established that the satellite has survived the mechanical loads it experienced during the launch and its orientation has stabilised, the DLR researchers will send the command to deploy the four-meter-long helical antenna.
From that moment onwards the team will receive Automatic Identification System (AIS) signals from ships and will be able to determine their precise location. Although existing commercial satellites already receive AIS signals, in congested
waters such as the German Bight or around ports such as Singapore, the number of signals exceeds the capacity of these satellites with their non-directional antennas. Thanks to its helical antenna the AISat satellite receives signals from
a focused area with a diameter of only 750 kilometres. DLR's ground-based receiving stations will provide comparative data to measure the performance of AISat. The antenna was developed jointly by the DLR Institute of Space Systems and
the DLR Institute of Composite Structures and Adaptive Systems. The satellite and receiver were developed, built and tested at the DLR Institute of Space Systems. "We hope that AISat, with this novel antenna, will prove to be a good alternative
to the existing satellites and in high-traffic areas," said Project Manager Joerg Behrens.

Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: Lewis007 on 07/12/2014 07:18 am
The first images of SPOT-7 have been released.
Source: http://www.spacedaily.com/reports/First_images_from_SPOT_7_satellite_within_three_days_after_launch_999.html

Link for high-res pictures:
ftp://ftp.astrium-geo.com/SPOT7/
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: jacqmans on 09/05/2014 01:44 pm
Press release, 5 September 2014

AISat – over 52,000 ship signals received from around the world



The first things the AISat satellite caught sight of were the Russian Kamchatka Peninsula and the Bering Sea – but at that time only one non-directional rod antenna was in use on board the satellite. Within eight minutes, the receiver picked up Automatic
Identification System (AIS) signals from 45 ships. The four-metre helical antenna deployed and was brought into operation on 8 August 2014. Since then, orbiting at an altitude of 660 kilometres, the helical and non-directional rod antennas have captured
over 52,000 datasets. This was a first, because an axial helical antenna had never before been used to detect ships. The researchers from the German Aerospace Center (Deutsches Zentrum fuer Luft- und Raumfahrt; DLR) are satisfied – even although the
satellite pointing is not yet completely correct. Some parameters for the attitude control system still need to be optimised before the satellite's orientation can be stabilised. "At the moment, we are collecting a lot of data. Now we need to evaluate
its quality," says DLR project leader Joerg Behrens. The researchers are hopeful that the helical antenna will allow greater accuracy in the reception of ship signals, which provide information on position, vessel size and cargo from areas with heavy
maritime traffic.

Listening to each individual ship signal

Non-directional rod antennas used until now have tended to become overwhelmed by large numbers of signals, especially in regions with heavy shipping traffic – they observe areas with a diameter of about 5000 kilometres and receive too many simultaneous
messages to be able to assign the signals to individual vessels. "Our helical antenna targets a region just 750 kilometres in diameter," explains Behrens. "We believe that the system will enable us to detect individual ship signals with greater precision."
This will help improve safety in areas such as the Mediterranean, the North Atlantic coast of America and major ports such as those of Beijing, Tokyo and Singapore.

The DLR satellite was carried into orbit on board an Indian launch vehicle on 30 June 2014. Since then, the project team has operated and controlled AISat from its base at the DLR site in Bremen. On the first day, AISat transmitted its initial Morse
code signals containing information about the satellite's condition, and the messages were received in Bremen. "During the first few weeks following the launch, we were particularly concerned with increasing the communication time with the satellite,
so we made use of the ground station at the Technische Universität Berlin, and colleagues working there gave us a lot of help," explains Behrens. "With AISat, it is pretty much new territory – the engineering as well as the commanding from DLR Bremen.
At the moment, we are on a fairly steep learning curve." At present, there are multiple overflights every day, during which the scientists receive datasets containing recorded ship signals and transmit commands to their satellite.

Receiving global signals

So far, the extended helical antenna has detected ships travelling across all of the seven seas: "There are a large number of fishing boats on the move around Spitsbergen, while in Siberia we tend to see vessels heading along rivers; many of the other
datasets come from ships passing through the Suez Canal or crossing the Mediterranean," says Behrens. So far, they are lacking data from the German Bight. The scientists intend to use this popular shipping area as a benchmark for the data they receive.
Comparing data from this region with that received by ground stations will enable the researchers to audit the quality of satellite reception and to demonstrate that the helical antenna has the capacity to accurately receive ship signals – with a greater
range than ground-based receiver systems. "The helical antenna can only be counted a success if it is better than non-directional rod antennas in space," emphasises Behrens.
Title: Re: LIVE: Indian PSLV C23 - SPOT 7 - June 30, 2014 (0422 UTC)
Post by: Yarrah on 12/03/2014 06:44 pm
SPOT 7 will now be operated by Azercosmos:

http://azercosmos.az/azercosmos-ojc-to-operate-and-commercialize-spot-7-high-resolution-optical-earth-observation-satellite-to-be-renamed-as-azersky-2