Author Topic: HySIS & 30 foreign small sats - PSLV C43- FLP - November 29, 2018 (04:27 UTC)  (Read 19153 times)

Offline input~2

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A potential payload for PSLV C42 is SSTL-S1, a 450 kg Earth observation satellite  manufatured and owned by SSTL for Chinese private company 21AT Co. Ltd (via reddit)

http://www.satnews.com/story.php?number=1952793509
https://www.ecns.cn/2018/02-09/292099.shtml

Quote
The satellite will be launched on the Indian Space Research Organisation's Polar rocket in August.
« Last Edit: 11/29/2018 07:14 AM by input~2 »

Offline K210

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Re: SSTL-S1? - PSLV C42 - August 2018
« Reply #1 on: 04/18/2018 12:29 PM »
NovaSAR-S could also be a co-passenger on this flight. It was supposed to be launched on board C40 mission in January but was delayed for some reason.

NovaSAR-S details:

Mass: 430 kg
Manufacturer: SSTL
Country: UK
Payload: SAR

Source: http://space.skyrocket.de/doc_sdat/novasar-s.htm

Offline K210

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Re: SSTL-S1? - PSLV C42 - August 2018
« Reply #2 on: 06/16/2018 11:28 AM »
Quote
“We are looking at including 25 to 30 small satellites of foreign customers in the next PSLV launch depending on the configuration. They may total 250 kg,” said Rakesh Sasibhushan, Chairman and Managing Director of Antrix Corporation Ltd, which exports ISRO’s products and services.

Quote
C-42 would have new customers as well as repeat users of the Indian launch vehicle, he told The Hindu. The main load in it from ISRO could weigh around 800-1,000 kg.

Mr. Sasibhushan said the international launch market was “looking very good” and Antrix had sought two fully commercial launches (i.e., without an ISRO satellite) each year from the space agency.

According to this article PSLV C-42 will have 25-30 small satelites onboard with total mass of around 250 kg as well as a primary payload from isro with mass of 800-1000 kg.

Source: http://www.thehindu.com/sci-tech/science/isro-plans-next-launch-mission-in-aug/article24175171.ece

Offline Steven Pietrobon

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Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline ZachS09

I would not be surprised if ISRO decides at the last minute to launch a Cartosat 2G instead of Cartosat 3.
« Last Edit: 06/17/2018 02:44 AM by ZachS09 »
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Offline K210

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From this article the nominees for this launch are

Cartosat 3
Oceansat 3
RISAT 1A

https://www.hindustantimes.com/science/chandrayaan-2-oceansat-3-isro-s-launch-plans-in-2018/story-KEZikZnvCSSvgARD9Y59QN.html

We can rule out RISAT-1A due to the lift off mass of 1858kg. The article says primary payload will be between 800-1000 kg. According to isros own manifest however both cartosat-3 and oceansat-3 wont be ready till october/november so unless those satelites are ready ahead of time i dont think it will be them either.

I'm willing to bet the primary payload are two commercial 450 kg satelites (SSTL-S1 and novasar-s) or some satelites we dont know about that isro has in development.
« Last Edit: 06/17/2018 05:08 AM by K210 »

Offline Steven Pietrobon

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According to isros own manifest however both cartosat-3 and oceansat-3 wont be ready till october/november so unless those satelites are ready ahead of time i dont think it will be them either.

Do you have a link for the ISRO manifest? I couldn't find it on the ISRO website. This page only lists GSAT 11, Chandrayaan-2 and GSAT 29.

https://www.isro.gov.in/missions
« Last Edit: 06/18/2018 07:15 AM by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Looks like Centauri I from Fleet is flying on this mission.

http://www.manmonthly.com.au/news/fleet-space-technologies-unveils-launch-partners-first-nanosatellite-launches/

Australian Internet of Things (IoT) startup, Fleet Space Technologies, has today announced launch plans for its first two nanosatellites, Centauri I and II, in 2018.

Fleet Space Technologies has announced that the first of its nanosatellites is under contract to launch with Spaceflight aboard an Indian Polar Satellite Launch Vehicle (PSLV) by Antrix/ISRO. This satellite will establish a global network that will connect the world’s sensors and devices, for free. Just one satellite has the ability to cover 90% of the Earth.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline K210

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According to isros own manifest however both cartosat-3 and oceansat-3 wont be ready till october/november so unless those satelites are ready ahead of time i dont think it will be them either.

Do you have a link for the ISRO manifest? I couldn't find it on the ISRO website. This page only lists GSAT 11, Chandrayaan-2 and GSAT 29.

https://www.isro.gov.in/missions

ISAC manifest attached. Note that the quarter dates are based on indian financial year which begins in april and ends in march of next year. So Q3 would indicate a time somewhere September - December


Offline Steven Pietrobon

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Thanks K210! Perhaps the ISRO payload is EMISAT, which was scheduled to be available in the first quarter of 2018.

http://space.skyrocket.de/doc_sdat/emisat.htm
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Space Lizard

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Thanks K210! Perhaps the ISRO payload is EMISAT, which was scheduled to be available in the first quarter of 2018.

http://space.skyrocket.de/doc_sdat/emisat.htm
At about 400 kg, that still falls short of the 800-1000 kg description.
I watch rockets

Offline input~2

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Crossposting:
Quote
As the Commission is aware, BlackSky is under a tight timetable to ship its
Global-1 satellite on July 15, 2018, for a September launch.

Global-1 is on a PSLV flight.
Does this mean that PSLV C42 launch date is pushed to the right into September?

Offline Steven Pietrobon

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Presumably. Strange that ISRO hasn't listed this mission on their website.

https://www.isro.gov.in/missions
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline K210

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« Last Edit: 07/20/2018 09:13 AM by K210 »

Offline input~2

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Re: HySIS & 30 foreign small sats - PSLV C43 - October 2018
« Reply #14 on: 08/12/2018 01:19 PM »
The "ISRO EO sat" will be HySIS, Hyperspectral Imaging Satellite
source
and 30 foreign commercial co-passengers will be onboard

Offline zubenelgenubi

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Re: HySIS & 30 foreign small sats - PSLV C43 - October 2018
« Reply #15 on: 08/15/2018 03:47 PM »
What version of PSLV will this launch use?
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Offline ZachS09

What version of PSLV will this launch use?

Probably PSLV-XL.
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Offline russianhalo117

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Re: HySIS & 30 foreign small sats - PSLV C43 - October 2018
« Reply #17 on: 08/15/2018 07:05 PM »
What version of PSLV will this launch use?

Probably PSLV-XL.
Yes.

Offline worldtimedate

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Re: HySIS & 30 foreign small sats - PSLV C43 - October 2018
« Reply #18 on: 08/18/2018 05:06 AM »
ISRO to develop full-fledged hyperspectral imaging satellite

Quote
A new set of future satellites called hyperspectral imaging satellites is set to add teeth to the way India is gleaned from about 600 km in space. The Indian Space Research Organisation (ISRO) says it plans to launch a full-fledged niche Earth observation (EO) satellite - called the Hyperspectral Imaging Satellite or HySIS - using a critical chip it has developed.

Quote
About a decade ago, ISRO added another EO niche with microwave or radar imaging satellites RISAT-1 and 2 that could 'see' through clouds and the dark - an important feature useful for the military and security agencies.

Quote
'Hyspex' imaging is said to enable distinct identification of objects, materials or processes on Earth by reading the spectrum for each pixel of a scene from space. The payloads development centre, Space Applications Centre, Ahmedabad, designed the architecture of the chip which was made at ISRO's electronics arm, the Semi-Conductor Laboratory, Chandigarh. The result was a detector array that could read 1000 x 66 pixels.

Quote
ISRO first tried it out in an 83-kg IMS-1 experimental satellite in May 2008. The same year, a hyperspectral camera was put on Chandrayaan-1 and used to map lunar mineral resources. Very few space agencies have such a satellite; a German environmental satellite called EnMAP is due to be launched on an Indian booster in 2018.

--- [ --- ]

Offline worldtimedate

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Re: HySIS & 30 foreign small sats - PSLV C43 - November 2018
« Reply #19 on: 09/02/2018 11:21 PM »
A slew of satellites are expected to be launched by ISRO after a dull year of launch mission.

Quote
In October itself, another launch of PSLV C43 is scheduled that will carry HySIS or hyperspectral imaging satellite. The satellite is set to add teeth to the way India is gleaned from 630 km altitude as it will enable the country to see in 55 spectral or colour bands.

Source : Isro to launch 19 missions in just 7 months

Offline zubenelgenubi

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Re: HySIS & 30 foreign small sats - PSLV C43 - October 2018
« Reply #20 on: 09/17/2018 07:36 PM »
What version of PSLV will this launch use?

Probably PSLV-XL.
Yes.
I see that Gunter has changed his LV assignment for PSLV C43 to the PSLV-CA version.

Am I right to deduce that this is because the primary payload, HySIS, is using the SSB-2 microsatellite bus?  And, even 30 more secondary passengers would not overfill the PSLV-CA payload mass limits to a SSO?

(SARAL also used this satellite bus and was launched to a similar polar orbit, with secondary payloads.  SARAL massed only 346 kg.)
« Last Edit: 09/17/2018 07:36 PM by zubenelgenubi »
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Offline Skyrocket

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Re: HySIS & 30 foreign small sats - PSLV C43 - November 2018
« Reply #21 on: 09/17/2018 08:11 PM »
What version of PSLV will this launch use?

Probably PSLV-XL.
Yes.
I see that Gunter has changed his LV assignment for PSLV C43 to the PSLV-CA version.

Am I right to deduce that this is because the primary payload, HySIS, is using the SSB-2 microsatellite bus?  And, even 30 more secondary passengers would not overfill the PSLV-CA payload mass limits to a SSO?

(SARAL also used this satellite bus and was launched to a similar polar orbit, with secondary payloads.  SARAL massed only 346 kg.)

Exactly - the small mass of all payloads is a very strong hint, that the CA version will be used.

Offline K210

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Re: HySIS & 30 foreign small sats - PSLV C43 - November 2018
« Reply #22 on: 10/03/2018 02:34 AM »
Launch date has slipped to mid november according to the reaktor hello world cubesat website (one of the payloads on C43).

Source: https://reaktorspace.com/reaktor-hello-world/

Offline K210

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Re: HySIS & 30 foreign small sats - PSLV C43 - November 2018
« Reply #23 on: 10/03/2018 02:38 AM »
Also this might end up being a XL variant rather than a CA variant reason being that a extra 450 kg payload was intended to fly on C42 (Which was supposed to be XL variant rather than CA). If that extra 450 kg payload is included on this mission than this will become a XL variant due to payload mass being too heavy for CA and G variant of PSLV being retired.

Offline input~2

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Re: HySIS & 30 foreign small sats - PSLV C43 - November 2018
« Reply #24 on: 10/03/2018 07:02 AM »
Launch date has slipped to mid november according to the reaktor hello world cubesat website (one of the payloads on C43).

Source: https://reaktorspace.com/reaktor-hello-world/
The countdown on that page points to a launch time of November 22, 8am (Helsinki local time)

Offline K210

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According to local media launch is set for November 27th from first launch pad. HySIS (Main payload) has already reached shar.

Source: http://www.andhrabhoomi.net/content/nation-8122
« Last Edit: 10/27/2018 10:40 AM by K210 »

Offline zubenelgenubi

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Re: HySIS & 30 foreign small sats - PSLV C43 - November 2018
« Reply #26 on: 10/27/2018 07:05 PM »
Also this might end up being a XL variant rather than a CA variant reason being that a extra 450 kg payload was intended to fly on C42 (Which was supposed to be XL variant rather than CA). If that extra 450 kg payload is included on this mission than this will become a XL variant due to payload mass being too heavy for CA and G variant of PSLV being retired.

HySIS is using the SSB-2 microsatellite bus.  SARAL used the same bus and massed 346 kg.

Gunter gives a payload capacity of 1100 kg to a PSLV-CA to SSO.

346 kg + 450 kg = 796 kg

796 kg < 1100 kg by approximately 300 kg.

Unless there are other, unknown-to-us factors that consume over 300 kg of performance, I hypothesize that this launch will use PSLV-CA.
« Last Edit: 10/27/2018 08:28 PM by zubenelgenubi »
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Offline K210

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Re: HySIS & 30 foreign small sats - PSLV C43 - November 2018
« Reply #27 on: 10/28/2018 12:57 AM »
Also this might end up being a XL variant rather than a CA variant reason being that a extra 450 kg payload was intended to fly on C42 (Which was supposed to be XL variant rather than CA). If that extra 450 kg payload is included on this mission than this will become a XL variant due to payload mass being too heavy for CA and G variant of PSLV being retired.

HySIS is using the SSB-2 microsatellite bus.  SARAL used the same bus and massed 346 kg.

Gunter gives a payload capacity of 1100 kg to a PSLV-CA to SSO.

346 kg + 450 kg = 796 kg

796 kg < 1100 kg by approximately 300 kg.

Unless there are other, unknown-to-us factors that consume over 300 kg of performance, I hypothesize that this launch will use PSLV-CA.

Your forgetting the 31 commercial co-passenger payloads. The 450 kg payload is a single payload that was supposed to go up on C42 mission back in september so it may launch on this pslv instead in addition to the other 31 co-passenger payloads. It should add a few hundred kg to the overall payload mass. Also this mission will involve multiple restarts of the upper stage so they may choose the XL variant for extra safety margin. Two similar missions (C38 in june 2017 and C40 in january 2018) were both XL variants so make of that what you will.
« Last Edit: 10/28/2018 12:59 AM by K210 »

Offline K210

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Offline input~2

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There was a recent reference in the local press to a launch of HySIS at the end of November with PSLV C43

source


Offline gongora

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TYVAK FCC application 0881-EX-CN-2018 (received and pending on Nov. 8)
6U cubesat for GPS radio occultation
« Last Edit: 11/09/2018 01:41 PM by gongora »


Offline K210

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What version of PSLV will this launch use?

Probably PSLV-XL.
Yes.

Spaceflight confirm to me it's flying in the CA configuration.

That would be a first if it turns out to be true. The CA config of PSLV has never carried more than 10 satellites nor has it ever undertaken a upper stage restart.

Offline K210

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Some information on the primary payload "HySIS"

Offline K210

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Tentative launch date is ~2 weeks from now according to isro chairmans post launch speech after the recent Mk-3 D2 launch. @1:25:00 onwards


Offline zubenelgenubi

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Cross-post; launch date NET November 29, NOTAM restrictions daily 04:00-08:00 UTC:
https://www.reddit.com/r/ISRO/comments/9xb41y/a_partial_notam_for_pslv_c43_hysis_is_out/?utm_source=dlvr.it&utm_medium=twitter

04:00 UTC = 9:30 am IST

Given the SSO information in the attached image with satellite information up-thread, and the NOTAM, is it possible to deduce a launch time-of-day?
« Last Edit: 11/16/2018 02:26 AM by zubenelgenubi »
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Offline Salo

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Re: Indian launch schedule
« Reply #37 on: 11/19/2018 01:56 PM »
https://www.reddit.com/r/ISRO/comments/9yh6c2/full_notam_for_pslvc43hysis_launch/?utm_source=dlvr.it&utm_medium=twitter
Quote
A3107/18 - PSLV-C43 ROCKET LAUNCH FM SHAR RANGE,SRIHARIKOTA WILL TAKE PLACE AS PER FLW DETAILS.THE LAUNCH WILL BE ON ANY ONE OF THE DAY DRG THIS PERIOD.ACTUAL DATE OF LAUNCH WILL BE INTIMATED 24 HR IN ADVANCE THROUGH A SEPARATE NOTAM. LAUNCH PAD COORD: 13 43.9N 080 14.2E NO FLT IS PERMITTED OVER THE DNG ZONES. A.DNG ZONE-1 IS A CIRCLE OF 10NM AROUND THE LAUNCH PAD B.DNG ZONE-2 IS A RECTANGULAR AREA BOUNDED BY: 1200N 08100E 1230N 08130E 1145N 08205E 1115N 08135E C.DNG ZONE-3 IS A RECTANGULAR AREA BOUNDED BY 0935N 08245E 0935N 08320E 0825N 08320E 0825N 8245E D.DNG ZONE-4 IS A RECTANGULAR AREA BOUNDED BY: 0000S 08135E 0020S 08255E 0405S 08210E 0345S 08050E E.DNG ZONE-5 IS A RECTANGULAR AREA BOUNDED BY: 2515S 07445E 2555S 07730E 3500S 07520E 3645S 07200E ROUTES AFFECTED IN CHENNAI FIR: W20, A465, P574, B466, L896, N563, N564, Q11, Q23,Q24, V3, V4, V6, V8, AND V9 END PART 1 OF 5. 0400-0800, 29 NOV 04:00 2018 UNTIL 11 DEC 08:00 2018. CREATED: 19 NOV 12:36 2018

Offline input~2

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F3121/18 -  FLW RECEIVED FROM GOVERNMENT OF INDIA: PSLV C-43 ROCKET LAUNCH FROM INDIA IS NOW SCHEDULED DANGER ZONES ARE  BOUNDED BY S00 00 E081 35 S00 20 E082 55 S04 05 E082 10 S03 45 E080 50 TO BEGINNING AND S25 15 E074 45 S25 55 E077 30 S35 00 E075 20 S36 45 E072 00 TO BEGINNING. SFC - UNL, DAILY 0400-0800, 29 NOV 04:00 2018 UNTIL 11 DEC 08:00 2018. CREATED: 15 NOV 09:48 2018

Offline input~2

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22 NOV 18
OA 83
INDIAN NAV WARNING (INW)409.
BAY OF BENGAL AND INDIAN OCEAN.
CHARTS IN 33 313 356 357 INT 71 73.
1. PSLV - C43 LAUNCH SCHEDULED FROM 29 NOV - 01 DEC 18 FROM 0400 - 0800
UTC.
2. DANGER ZONE AS FOLLOWS.
ZONE-1: CIRCLE OF 10 NM FROM 13-43.9N 080-14.2E
ZONE–2: 12-00N 081-00E, 12-30N 081-30E, 11-45N 082-05E, 11-15N 081-35E
ZONE–3: 09-35N 082-45E, 09-35N 083-20E, 08-25N 083-20E, 08-25N 082-45E
ZONE–4: 00-00S 081-35E, 00-20S 082-55E, 04-05S 082-10E, 03-45S 080-50E
ZONE–5: 25-15S 074-45E, 25-55S 077-30E, 35-00S 075-20E, 36-45S 072-00E

Offline TheVarun

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https://www.isro.gov.in/pslv-c43-hysis-mission/pslv-c43-hysis-mission-press-kit

 ISRO has put out information about the mission, including the 30 satellite co passengers to the main satellite HySIS.

4 first time customers, Australia, Colombia, Spain and Malaysia

Offline worldtimedate

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HySIS and 30 other small foreign satellites will be launched by PSLV C43 on Thursday, November 29, 2018 at 04:29:00 AM UTC [ Thursday, November 29, 2018 at 09:59:00 AM IST ].

Quote
Talking to TOI, Isro chairman K Sivan said, "We are going to launch HySIS at 9.59 am on November 29 from Sriharikota. Over 30 foreign satellites, including nano and mini satellites, will also be launched along with the main payload. Out of the 30 commercial satellites, 23 are from the US."

Source : Isro to launch hyperspectral imaging sat with 30 foreign satellites on Nov 29

Offline worldtimedate

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More info on ISRO HySis to be launched by PSLV C43 on November 29 from toi and deccan herald newspapers.

Quote
The satellite, which can see in 55 spectral or colour bands from 630 km above the ground, will be used for a range of applications like agriculture, forestry and assessment of coastal zones, inland waters, soil and other geological environments. Being an earth observation satellite, HySIS will also be used by the military for surveillance purpose. The optical imaging detector array chip in the HySIS satellite has been designed by Isro's Ahmedabad-based Space Applications Centre and manufactured by its electronic arm, Semi-Conductor Laboratory, Chandigarh.

The hyspex technology is still an evolving science and has become a new global trend. Hyperspectral imaging combines the power of digital imaging and spectroscopy. It collects and processes information from across the electromagnetic spectrum. Hyspex imaging enables distinct identification of objects, material or processes on the Earth by reading the spectrum for each pixel of a scene from space.

Source : Isro to launch hyperspectral imaging sat with 30 foreign satellites on Nov 29

Quote
HySIS carries two payloads in visible and near infrared regions of the electromagnetic spectrum. This earth observing imaging spectrometer will operate in the 0.4 to 0.95µm spectral range, will have 55 spectral bands with 10 nanometre spectral sampling and 30 metre spatial sampling. Push-broom scanning mode is the operating mode of this sensor from a 630-km orbit. According to Isro officials, 1000 X 66 pixels were designed to be readout, from both top and bottom directions, using four analog video ports to meet the frame rate requirement.

Quote
Metal strapping was used for swiftly transferring integrated charges from image to storage region, in order to reduce image smear. Designs (both at chip and package levels) went through detailed review, before clearing for mask making and package fabrication, by a team consisting of members from Isro's SCL (Semiconductor Laboratory) and SAC (Satellite Application Centre).

HySIS spacecrafts carries the Hyper Spectral Compact Imaging in VNIR (Visible and Near Infrared) and SWIR (Shortwave Infrared) spatial region in 60 and 256 contiguous spectral bands respectively, with 10 nm bandwidth providing 30m spatial resolution and covering a swath of 30 km at 630 km orbit.

Source : Hyperspectral Imaging Satellite to be launched on November 29

Offline worldtimedate

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ISRO Develops Optical Imaging Detector Array for Hyperspectral Imaging Applications
https://www.isro.gov.in/isro-develops-optical-imaging-detector-array-hyperspectral-imaging-applications

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Screenshots of brochure + brochure pdf attached for convenience

Offline russianhalo117

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According to the previous and latest mission kits it appears that C43 is the first flight of the Higher Performance HPS3 stage which replaces the standard PS3 stage as part of the overall PSLV Higher Performance Project (PSLV-HP).
« Last Edit: 11/27/2018 03:00 AM by russianhalo117 »

Offline K210

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According to the previous and latest mission kits it appears that C43 is the first flight of the Higher Performance HPS3 stage which replaces the standard PS3 stage as part of the overall PSLV Higher Performance Project (PSLV-HP).

No that is incorrect. The High Performance PS3 (HPS3) has been around since PSLV C4/METSAT mission back in 2002.

https://www.isro.gov.in/sites/default/files/flipping_book/PSLV-C4/HTML/files/assets/basic-html/page-1.html
https://www.isro.gov.in/50th-high-performance-motor-case-hps3-third-stage-of-pslv-realised

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Screenshots of updated mission brochure + PDF attached

 

Offline russianhalo117

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According to the previous and latest mission kits it appears that C43 is the first flight of the Higher Performance HPS3 stage which replaces the standard PS3 stage as part of the overall PSLV Higher Performance Project (PSLV-HP).

No that is incorrect. The High Performance PS3 (HPS3) has been around since PSLV C4/METSAT mission back in 2002.

https://www.isro.gov.in/sites/default/files/flipping_book/PSLV-C4/HTML/files/assets/basic-html/page-1.html
https://www.isro.gov.in/50th-high-performance-motor-case-hps3-third-stage-of-pslv-realised
Then why have the mission kits just started writing HPS3 after using PS3 the last few years.

Offline worldtimedate

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PSLV-C43 lift off time is rescheduled to 09.58 Hrs IST on 29th November, 2018. Countdown will commence from 05.58 Hrs IST on 28th November, 2018

https://www.isro.gov.in/update/27-nov-2018/pslv-c43-lift-time-rescheduled-to-0958-hrs-ist-29th-november-2018-countdown-will

https://twitter.com/isro/status/1067385334889992192?p=v
« Last Edit: 11/27/2018 11:19 PM by worldtimedate »

Offline K210

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According to the previous and latest mission kits it appears that C43 is the first flight of the Higher Performance HPS3 stage which replaces the standard PS3 stage as part of the overall PSLV Higher Performance Project (PSLV-HP).

No that is incorrect. The High Performance PS3 (HPS3) has been around since PSLV C4/METSAT mission back in 2002.

https://www.isro.gov.in/sites/default/files/flipping_book/PSLV-C4/HTML/files/assets/basic-html/page-1.html
https://www.isro.gov.in/50th-high-performance-motor-case-hps3-third-stage-of-pslv-realised
Then why have the mission kits just started writing HPS3 after using PS3 the last few years.

PS3 is to reference the third stage of PSLV and HPS3 is the actual version of PS3 currently in use. But yes i agree it would be less confusing if they just use HPS3 all the time.

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« Last Edit: 11/27/2018 11:37 PM by K210 »

Offline worldtimedate

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28 hours countdown for the launch of PSLV-C43/HysIS mission started today at 05:58 Hrs IST from Satish Dhawan Space Centre (SDSC) SHAR, Sriharikota. The launch is scheduled at 09:58 Hrs IST on 29th November 2018 [ Wednesday, November 28, 2018 at 23:28:00 PM
EST ]

https://www.isro.gov.in/update/28-nov-2018/countdown-launch-of-pslv-c43-hysis-mission-started-today-0558-hrs-ist-satish

https://twitter.com/isro/status/1067385334889992192?p=v

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We are less than 21 hours away for the PSLV C43 to lift off to launch HySis and 30 other foreign satellites.

The Fuel filling of PSLV C43 Fourth Stage ( PS4 ) has been completed.
https://www.isro.gov.in/update/28-nov-2018/pslv-c43-hysis-mission-fuel-filling-of-ps4-stage-fourth-stage-completed

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Doordarshan [ http://www.youtube.com/DoordarshanNational ] will webcast the launch of PSLV C43 Mission from 9:30 AM IST on November 29th.

https://twitter.com/DDNational/status/1067653170019647489?p=v

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^^

Really like and appreciate those curtain raisers they have before each mission!  Some of the best they've had are the previews of RISAT-1, Mangalyaan MOM and the GSLV Mark 3 D1.   In this video, the narrator made a little error, I think( dumb non technical layman here :-[)   He said the PSLV fourth stage has a 'cluster' of two liquid engines. I don't think that's correct. The stage has a twin liquid engine configuration, whereas the first stage of the GSLV Mark 3 has a cluster of two Vikas type liquid engines. I do know there's a difference ;D.  K210, mind giving a very brief definition of clustering?  Just a one time thing :)

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The paint used on the external body , is it a special type of paint or the normal paint with industry practise of 1 coat of red oxide and 2 coats of paint ?
Any harm in just giving a coat of red oxide to save labour and money ? Every little bit helps , the competition is heating up.
« Last Edit: 11/29/2018 01:58 AM by maint1234 »

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Quote
He said the PSLV fourth stage has a 'cluster' of two liquid engines. I don't think that's correct. The stage has a twin liquid engine configuration, whereas the first stage of the GSLV Mark 3 has a cluster of two Vikas type liquid engines. I do know there's a difference ;D.  K210, mind giving a very brief definition of clustering?  Just a one time thing :)

Clustering is when more than one liquid fuel engine is used on a rocket stage. On PS4 stage of pslv there are two small "PS4 engines" hence it is a cluster of two engines. The largest cluster of engines on any indian launch vehicle so far is only 2 however other countries such as the us and russia have vehicles with 5 - 10 engines clustered on a single stage.

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Offline Chris Bergin

T-25 mins.

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Coverage has begun.

T-25 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Integration video.

T-20 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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See some red on the screen.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Waiting for authorisation at T-16 minutes.
« Last Edit: 11/29/2018 03:13 AM by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T-16 minutes. Launch authorised.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Chris Bergin

Launch key!

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Road through Indian jungle.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T-12 minutes. New customer countries.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T-10 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T-9 minutes. Payload from Australia.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T-8 minutes. Almost no wind.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T-7 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T-6 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T-5 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T-4 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Chris Bergin

Three mins.

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T-3 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T-2 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T-1 minute.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Liftoff!
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Chris Bergin

LAUNCH!


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T+1 minute.
« Last Edit: 11/29/2018 03:30 AM by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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First stage separation.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+3 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+4 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline worldtimedate

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Today's launch of PSLV-C43 will be the 68th launch from Satish Dhawan Space Center and 12th launch of PSLV-CA

HySis will be separated at 641 km around 17 minutes from the launch time, then there will 4 restart of PS4 engine, the restart will happen from 59 minutes from the launch time and the first co-passenger will be separated around 109 minutes from the launch time. PS4 orbit will be lowered from 641 km as all the co-passengers will be separated  at around 504 km.

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Second stage separation.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+5 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+6 minutes.

Third stage burnout.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+7 minutes. Coasting.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+8 minutes.

Third stage separation.

Fourth stage ignition.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+9 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline zubenelgenubi

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As has been noted before in previous Sriharikota launch coverage, Sri Lanka doesn't appear on the trajectory map.

SSO launches from Sriharikota "dog-leg" around Sri Lanka to the east to avoid overflight.
« Last Edit: 11/29/2018 03:48 AM by zubenelgenubi »
Support your local planetarium!

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T+10 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+11 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+12 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+13 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+14 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+15 minutes. Performance nominal.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Chris Bergin

Forward facing cam:

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T+16 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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PS4 cutoff.

T+17 minutes.
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HySIS separation!
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Chris Bergin

There goes the primary payload.

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As has been noted before in previous Sriharikota launch coverage, Sri Lanka doesn't appear on the trajectory map.
Was just thinking the same . So googled a map of sri lanka and the trajectory and it seems the vehicle passes over some part of northern sri lanka.
The omission seems deliberate to avoid controversies.

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Upcoming events.

t (h:m:s) t (s)  h (km) v (m/s) Event
--------------------------------------------------------------
0:59:39 3579.02 642.091 7531.99 Stage 4 (PS4) Engine Restart-1
0:59:43 3583.04 642.096 7507.17 Stage 4 (PS4) Engine Cut-off Restart-1
1:47:43 6463.02 503.832 7648.07 Stage 4 (PS4) Engine Restart-2
1:47:47 6467.40 503.839 7618.07 Stage 4 (PS4) Engine Cut-off Restart-2
1:48:01 6541.40 504.196 7610.79 First Co-passenger Separation
1:52:47 6767.40 506.554 7609.81 Last Co-passenger Separation
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Live coverage resuming at 11:25 am local, 05:55 UTC.
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launch with correct aspect ratio

edit: and HysIS satellite deployment
« Last Edit: 11/29/2018 04:04 AM by SciNews »

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As has been noted before in previous Sriharikota launch coverage, Sri Lanka doesn't appear on the trajectory map.
Was just thinking the same . So googled a map of sri lanka and the trajectory and it seems the vehicle passes over some part of northern sri lanka.
The omission seems deliberate to avoid controversies.

If you look at the mapping of the NOTAM areas for this launch up-thread, you see that the trajectory (apparently) remains off the eastern coast of Sri Lanka.  The same is true for the other descending-node SSO launches from Sriharikota.  I believe most or all launch threads here for previous Indian SSO launches have the NOTAMs mapped out.
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Re: commentator coverage
Is the pattern to announce in English first, then translate into Hindi?  Or vice-versa?
Or is there no pattern?
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Offline whiztech

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Second part of the launch should be here


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T+59 minutes 39 seconds. Four second perigee lowering burn should be happening about now.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Live coverage is back.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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T+1 hour 30 minutes. 15 minutes to third ignition.
« Last Edit: 11/29/2018 05:09 AM by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Went back and got this image, showing vehicle track.
« Last Edit: 11/29/2018 05:05 AM by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline maint1234

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As has been noted before in previous Sriharikota launch coverage, Sri Lanka doesn't appear on the trajectory map.
Was just thinking the same . So googled a map of sri lanka and the trajectory and it seems the vehicle passes over some part of northern sri lanka.
The omission seems deliberate to avoid controversies.

If you look at the mapping of the NOTAM areas for this launch up-thread, you see that the trajectory (apparently) remains off the eastern coast of Sri Lanka.  The same is true for the other descending-node SSO launches from Sriharikota.  I believe most or all launch threads here for previous Indian SSO launches have the NOTAMs mapped out.
Trajectory is fine but see the same on a map and it does seem to pass over the northern and western parts , no chance of eastern sri lanka.

Offline Steven Pietrobon

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10 minutes to third ignition. Showing previous video.
« Last Edit: 11/29/2018 05:12 AM by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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5 minutes to third ignition.
« Last Edit: 11/29/2018 05:12 AM by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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One minute to third ignition.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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PS4 third ignition and cutoff.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Innosat is away, with more more satellites also separating.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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No. 14.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Another one.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Four more to go.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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All sats are away!
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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ISRO Chairman and Department of Space Secretary.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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VSSC Director. GSAT 7A in 20 days, which would put the launch on 19 December.
« Last Edit: 11/29/2018 05:32 AM by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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URSC Director. HySIS solar arrays and other appendages have been deployed.
« Last Edit: 11/29/2018 05:33 AM by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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SDSC Director.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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SAC Director.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Mission Director. "PS4 gone on a sight seeing tour."
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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LPSC Director.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline sanjaykumar

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Thank you ….

Offline Steven Pietrobon

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Satellite Director.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline sanjaykumar

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Thank you Steven.

Offline Steven Pietrobon

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IPRC Director.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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IISU Director. Satellite performance is excellent.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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ISRO Chairman wrapping up. Next mission in 19 or 20 days.
« Last Edit: 11/29/2018 05:48 AM by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline K210

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Re: commentator coverage
Is the pattern to announce in English first, then translate into Hindi?  Or vice-versa?
Or is there no pattern?

There is no pattern most of the time. Hindi commentator is speaking advanced hindi that even 90% of hindi speakers wont understand while the english commentator is often at a loss for words or repeating moot points. The english commentary this time around was especially bad with commentator getting many things wrong or just speaking nonsense.

Best to ignore commentary and just watch the launch.

Offline Steven Pietrobon

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End of coverage.

Congratulations to ISRO and all the satellite customers for the successful launch!
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Shams

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Congratulations to ISRO scientists for successful launch of 31 satellites

Offline anik

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Today's launch of PSLV-C43 will be the 68th launch from Satish Dhawan Space Center

68th launch of what rockets? Only orbital? Orbital and suborbital?

Offline input~2

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1st object cataloged:

2018-096A/43719 in 628 x 648 km x 97.97°

Offline K210

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Onboard Camera Video is out: (If YT link does not work use original link however keep in mind it has a much slower player)



Original: https://www.isro.gov.in/pslv-c43-hysis-mission/lift-and-onboard-camera-view-of-pslv-c43-hysis-launch
« Last Edit: 11/29/2018 08:24 PM by K210 »

Offline TheVarun

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[quote a
Today's launch of PSLV-C43 will be the 68th launch from Satish Dhawan Space Center[/quote]
68th launch of what rockets? Only orbital? Orbital and suborbital?
[/quote]

Hmmm, let's try- 4 SLV-3 missions, 4 ASLV missions, 45 PSLV's, 12 GSLV Mark1 &2, 3 GSLV Mark 3

Yah, it adds up to 68, and the number includes the failures, 9 in all( 1 SLV-3, 2 ASLV, 2 PSLV, 4 GSLV Mark [email protected])

Off the top of my head, not bad eh? :D  ISRO doesn't include the off target or sub-orbital injections as failures, as long as the satellite in the mission did function( two after manoeuvering from ground control)  and provide valuable data for at least some time. A couple of those satellites had a brief sojourn in space( Rohini-3, SROSS-3) while others lasted/are still lasting pretty much for their expected lifespan( IRS-ID, INSAT 4CR) or not far from it.

It looks like ISRO is not counting the RLV-TD and the Scramjet launches in the 68 figure, supposedly since no satellite or payload was ejected.

Offline Chris Bergin

Thanks so much to Steven for the coverage......got to HySIS and tried staying up for the cubesats, but 6am was too much for me ;D

William's article post launch:
https://www.nasaspaceflight.com/2018/11/pslv-hysis-launch-numerous-co-passengers/

Offline K210

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Some new photos of the launch:

Offline worldtimedate

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Today's launch of PSLV-C43 will be the 68th launch from Satish Dhawan Space Center

68th launch of what rockets? Only orbital? Orbital and suborbital?

Today's launch is the 68th launch ( both Orbital and Sub-Orbital ) and 67th Orbital launch from Satish Dhawan Space Center.

ISRO's 45th overall launch was a sub-orbital launch that was the first flight and sub-orbital development test flight of GSLV MK-III erstwhile known as LVM3-X carrying CARE module on December 18, 2014.

Here is the breakdown of the launches

SLV-3       -     4
ASLV       -     4
PSLV       -      45
GSLV MK-II   -      12
GSLV MK-III   -       3 ( 1 Sub-Orbital )
-----------------------------------------------------------------
Total       -      68 ( 67 Orbital + 1 Sub-Orbital )
« Last Edit: 11/29/2018 07:38 PM by worldtimedate »

Online William Graham

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Today's launch of PSLV-C43 will be the 68th launch from Satish Dhawan Space Center

68th launch of what rockets? Only orbital? Orbital and suborbital?

Today's launch is the 68th launch ( both Orbital and Sub-Orbital ) and 67th Orbital launch from Satish Dhawan Space Center.

ISRO's 45th overall launch was a sub-orbital launch that was the first flight and sub-orbital development test flight of GSLV MK-III erstwhile known as LVM3-X carrying CARE module on December 18, 2014.


The key with this, as with all ISRO statistics, is the exact wording. They are claiming it as the 68th "launch vehicle mission" from SHAR. So flights, including suborbital test flights, of orbital launch systems. In terms of overall launches from Satish Dhawan, or the Sriharikota High Altitude Range as it was formerly known, this would be closer to the 600th launch than the 68th.

Jonathan McDowell lists 519 suborbital launches across his records of space-going, mesospheric and atmospheric flights (https://planet4589.org/space/lvdb/list2.html). This doesn't include the RLV test launch, so adding in this and the orbital launches gives a minimum count of 587 (137 of which reached space). That's just from a very quick count of one source, so may be missing other launches as well, but the point is, there have been a lot more than 68 launches from SHAR.

Offline worldtimedate

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This is the second time when ISRO has done 2 launches in a month.

First instance of 2 launches in a month :
--------------------------------------------------
September  8, 2016 --> GSLV Mk II F05 successfully launched INSAT-3DR
September 26, 2016 --> PSLV C35 successfully launched its payloads [ ScatSat-1, 5 foreign and 2 student satellites ] into two different orbits.

Second instance of 2 launches in a month :
--------------------------------------------------
November 14, 2018 --> GSLV Mk III D2 successfully launched GSAT-29 in its second development flight
November 29, 2018 --> PSLV C43 launched HySis and 30 other foreign satellites

In the first instance, the gap between 2 launches in a month was 18 days
and this time in the second instance, the gap between 2 launches in a month is 15 days

So, ISRO has improved its launch frequency and lessened the interval period between two launches in a month

Except for the above-mentioned instances, never before has ISRO done 2 launch missions with the such less overlapping interval between 2 launches not only in a month, but also the launch period stretching to the next month.

ISRO's first 25 launches has taken 30 years from 1979 to 2008. But then next 25 launches has taken only 8 years. It is from the tenure of former ISRO Chairman A. Kiran Kumar, ISRO's frequency of launch mission has gained momentum. So, in the upcoming years, we wouldn't be surprised if ISRO crosses the 100 launches in the next 4 to 5 years or even before.
« Last Edit: 11/30/2018 08:21 AM by worldtimedate »

Offline TheVarun

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 ^
Not to nitpick, but actually 5th. Apart from the two you mentioned, there were the launches of GSLV Mark 2 and Mark 3 on May 5/2017 and June 5/2017 respectively.  Less than 3 weeks after the Mark 3, a PSLV with 31 satellites went up on June 23/2017.

 Earlier this year, a GSLV Mark 2( carrying the errant GSAT-6A) and a PSLV with the IRNSS-1I, were launched within 2 weeks, March 29 and April 12 respectively.

 Who would have thought in the late 80's and early 90's, when ISRO was struggling with the ASLV, that it would be one day, launching far more sophisticated vehicles successfully within a few weeks of each other :). You just know that there was a lot of cynicism back then, including calls to cancel the wasteful and failed programme!
« Last Edit: 11/30/2018 03:02 PM by TheVarun »


Offline sanjaykumar

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« Last Edit: 12/02/2018 07:44 PM by sanjaykumar »

Offline worldtimedate

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ISRO has released hyperspectral data captured by Hysis

Glimpse of HyperSpectral Data Captured by HySIS
https://www.isro.gov.in/update/07-dec-2018/glimpse-of-hyperspectral-data-captured-hysis

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