Author Topic: PSLV-XL C54 - EOS-06 (aka Oceansat-3) + 8 sats - FLP - 26 Nov 2022 (06:26 UTC)  (Read 48028 times)

Offline zubenelgenubi

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Oceansat-3

I've attached the PlanetIQ table to this post.
PlanetiQ GNOMES-1 on as yet undetermined PSLV in Q4 2019.

Oceansat-3 (and 3A) seem a close match for the SSO, LDTN 12:00 orbit of PSLV C53.  Their immediate predecessor, Oceansat-2, launched into SSO on September 23, 2009, 0621 UTC = 11:51 IST.  The local time of descending node (orbit crossing equator north to south) would be close to 12:00.

Please see this post for discussion that RISAT-1A will no longer launch aboard PSLV C50.  Oceansat-3 may replace it in the 2020 launch cadence.

As always, I seek correction.
« Last Edit: 11/22/2022 01:59 pm by Galactic Penguin SST »
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Offline Salo

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Re: PSLV-CA C50? - Oceansat-3 - 2020
« Reply #1 on: 02/01/2020 12:32 pm »
https://ioccg.org/2020/01/feb-2020/
Quote
Later this year, ISRO is also scheduled to launch the Oceansat-3 mission (tentatively  between June – October, 2020) from the Satish Dhawan Space Centre. The payload for Oceansat-3 consists of three instruments, including the 13-band Ocean Colour Monitor (OCM, 360 m spatial resolution).  These instruments will collect data on ocean colour, sea surface temperature and wind vector data.  Oceansat-3 (and the follow-on Oceansat-3A mission, to be launched in 2020/2021) is envisaged to provide service continuity for operational users of OCM data from Oceansat-2, as well as to enhance operational services like potential fishery zone (PFZ) advisories, using simultaneous ocean colour  (chl) and  sea surface temperature (SST) measurements. Oceansat-3 is a global mission and is configured to cover global oceans. The mission, in tandem with Oceansat-2, will improve the revisit frequency of ocean colour measurements to every 24 hour, and wind vector measurements to every 12 hours.

Offline zubenelgenubi

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« Last Edit: 06/29/2020 02:21 am by zubenelgenubi »
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Offline zubenelgenubi

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Re: PSLV C53 - EOS-06 (aka Oceansat-3) - October 2021
« Reply #3 on: 03/12/2021 08:24 pm »
From the government annual (2020/2021) report (pdf attached here), page 24.  The description matches that of Oceansat-3.
Quote
EOS-06: The prime objective of EOS-06 is to ensure the data continuity with improved payload specification of Ocean colour and wind vector data to sustain the operational applications. This satellite is expected to improve the applications by providing additional data such as Sea Surface Temperature (SST), with more number of bands in Optical region and in Infrared region for atmospheric corrections. EOS-06 satellite is envisaged to carry Scatterometer, 13 band Ocean Color Monitor (OCM-3) with spectral bandwidth of 10-20 nm and better SNR as well as sea surface temperature monitor (SSTM-1) for Sea Surface Temperature measurement. An ARGOS-4 payload of CNES will also fly on-board the satellite under international co-operation.

From page 60:
Quote
Future Missions of PSLV that are slated for launch in 2021 includes PSLV-C51/Amazonia-1, PSLV/EOS-04, PSLV/EOS-06.
The particular PSLV variant is not stated for this launch.


In the TOI article Isro aims for 7 more launches from India in 2021, updated March 12, launch is scheduled in October.
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Offline zubenelgenubi

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« Last Edit: 09/18/2021 02:17 am by zubenelgenubi »
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Offline Yiosie

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Re: PSLV C53 - EOS-06 (aka Oceansat-3) - October 2021
« Reply #5 on: 09/23/2021 10:31 pm »
Cross-post:

Oceansat-3 launch delayed from October 2021 to January 2022; OrbAstro's Guardian-Alpha cubesat, originally manifested as a Vigoride payload, will now rideshare on this mission.

Smallsat specialist OrbAstro busy building downstream dreams [dated September 23]

Quote
While the ORB-12 mission is the first of several planned announcements, it’s not expected to be OrbAstro’s first launch.

The company has a variety of 3U- and 6U-class nanosatellites scheduled for launch in 2022, starting with a 3U nanosat that OrbAstro had expected to launch this year to put its cubesat-derived ORB-3 platform and subsystems through their paces.

That first satellite is expected to launch in January as a secondary payload on an Indian Polar Satellite Launch Vehicle carrying the Indian Space Research Organisation’s Oceansat 3. Dove-Jay said OrbAstro made arrangements for the PSLV launch after plans fell through to launch with SpaceX this year as part of Momentus’ still-delayed Vigoride space tug mission.

Dove-Jay said OrbAstro has three SpaceX Falcon 9 rideshare missions lined up next year for its 6U-class nanosatellites, the ORB-6.
« Last Edit: 09/24/2021 01:09 am by zubenelgenubi »

Offline TheVarun

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Re: PSLV C53 - EOS-06 (aka Oceansat-3) - January 2022
« Reply #6 on: 09/25/2021 07:46 pm »
 Not good news :(  I hope we can see the other two launches by year end- PSLV with RISAT-1A, and the long awaited SSLV-D1

Offline zubenelgenubi

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Re: PSLV C53 - EOS-06 (aka Oceansat-3) - 2022
« Reply #7 on: 10/31/2021 10:33 pm »
Cross-post re: launch delays, following after the delayed C52:
https://www.deccanchronicle.com/nation/politics/261021/assembly-of-pslv-stopped-to-involve-private-sector-in-space-missions.html
[dated November 1 IST]

Quote
<snip>
On August 4, Union minister of state for space, Jithendra Singh had told Nama Nageswara Rao in Parliament that the PSLV rocket, numbered C52, would launch EOS-04 in the third quarter.

In fact, four EOSes were to have been launched in the last two quarters.

Apart from PSLV-C52, according to the minister, the GSLV-F10 was to launch the EOS3 in the third quarter followed in the fourth quarter by the first developmental flight of the Small Satellite Launch Vehicle, SSLV-D1 with the EOS-02 and the launch of EOS-06 aboard the PSLV-C53.
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Offline zubenelgenubi

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Re: PSLV C53 - EOS-06 (aka Oceansat-3) - 2022
« Reply #8 on: 12/17/2021 04:04 pm »
Third of three launch campaigns in progress as of late November?
RISAT-1A, NET January 6
SSLV inaugural launch, Q1
Oceansat-3, TBD

Belated cross-post; my bold:
Nobody in India is covering the launch delays?

Especially if launch processing at Sriharikota has halted, either on orders from ISRO, or as some kind of strike?

Looks like flooding in Andhra Pradesh is the current issue perpetuating the launch delays:

After Covid, Andhra floods stall Isro’s sat launch missions this year [dated Nov. 22]

Quote
After the Covid pandemic cast a shadow over Isro’s mission launches for over a year, now it is the flood situation in Andhra Pradesh that is stalling satellite launches at the SHAR launch centre in Sriharikota, a barrier island located in Nellore district of the state.

Isro sends key satellites and rocket components from its centres in Kerala and Karnataka to Sriharikota by road for assembling and launch. As many arterial roads in Nellore have to be closed due to the floods, Isro is not able to finalise its launches.

Isro chairman K Sivan told TOI, "We have been working on three launches, including the small satellite launch vehicle (mini-PSLV) launch, before the year ends. But due to heavy rain and floods in Andhra, we have to reassess the situation... We can decide on the three launches only when the flood situation improves."
« Last Edit: 12/17/2021 07:28 pm by zubenelgenubi »
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Offline PM3

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Re: PSLV C53 - EOS-06 (aka Oceansat-3) - 2022
« Reply #9 on: 12/24/2021 08:14 pm »
"PSLV-C53 is scheduled to launch EOS-06, an earth observation satellite
in the 1st quarter of 2022. Launch vehicle and satellite integration and testing activities are in progress"

https://www.isro.gov.in/sites/default/files/article-files/monthly-summary-of-department-of-space-last-1-year/november_-_2021_-_monthly_summary.pdf
"Never, never be afraid of the truth." -- Jim Bridenstine

Offline zubenelgenubi

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Re: PSLV C53 - EOS-06 (aka Oceansat-3) - 2022-Q1
« Reply #10 on: 12/26/2021 01:28 am »
Cross-post:
Looks like technical problems have continued to plague all three upcoming ISRO missions:

Teething troubles with indigenous tech cause for delay in 2 Sat launches; humidity halts SSLV [dated Dec. 1] (bolds mine)

Quote
Teething troubles with multiple indigenous modules on one satellite and domestic mirror fabrication on the other are major causes for delay in the launch of two Earth Observation Satellites (EOSs) Isro had in its pipeline, while increased humidity has put on hold a key process on the first small satellite launch vehicle (SSLV) mission.

TOI had reported earlier that Isro was hoping to launch three Earth Observations Satellites (EOSs) — two of them (EOS-4 or Risat-1A and EOS-6 or Oceansat-3 using PSLV and the third, EOS-2 or Microsat as part of the first developmental flight of the Small Satellite Launch Vehicle (SSLV) — in the last quarter of 2021.
<snip>
On Oceansat-3, another scientist said: "This is a very advanced satellite and the mirror that we fabricated here got into technical problems. That needs to be redone now."
The scatterometer mirror? Or?

Mirror replacement?  Refiguring the current mirror?  Removing and replacing a mirror coating?
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Offline input~2

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Re: PSLV C53 - EOS-06 (aka Oceansat-3) - 2022-Q1
« Reply #11 on: 01/08/2022 04:07 pm »
According to an article in Telugu published January 3, PSLV C53 with 0ceansat-3 should launch from First launch Pad on January 20 or in February if the satellite is delayed

Offline zubenelgenubi

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Re: PSLV-CA C53 - EOS-06 (aka Oceansat-3) - FLP - March 2022
« Reply #12 on: 01/25/2022 10:07 pm »
https://pib.gov.in/PressReleaseIframePage.aspx?PRID=1792514

Quote
Department of Space

Dr S. Somanath, new Chairman, ISRO calls on Union Minister Dr Jitendra Singh and discusses status of “Gaganyaan” and other future Space missions

Posted On: 25 JAN 2022 4:27PM by PIB Delhi

Dr S. Somanath, who has taken over as the new Chairman of Indian Space Research Organisation (ISRO) called on Union Minister of State (Independent Charge) Science & Technology; Minister of State (Independent Charge) Earth Sciences; MoS PMO, Personnel, Public Grievances, Pensions, Atomic Energy and Space, Dr Jitendra Singh and discussed the status of “Gaganyaan” as well as other Space missions lined up for the near future.
<snip>
ISRO Chairman presented at brief about the forthcoming missions during the next three months. He mentioned a [RISAT-1A] PSLV [C52] scheduled for February 2022, OCEANSAT-3, INS 2B[, and] ANAND PSLV [C53] to be launched in March 2022[,] and SSLV-D1 Micro SAT in April 2022.

Secondary payloads aboard:

Pixxel Anand

INS 2B = BhutanSat

What about the OrbAstro Guardian cubesat?  It was manifested aboard the Falcon 9 Transporter-3 flight but then removed.

Anand earlier scheduled for launch on PSLV C51 in February 2021:
^
They appear to have dropped two satellites from the mission. Now, it's 19 satellites in total, not 21 as stated earlier.

Yes pixxel's "anand" will not be launching on this flight because of some software issues they are having.

Anand also was scheduled on a Russian Soyuz rideshare launch in March 2021:
payloads from 18 countries
...
The small spacecraft cluster consists of satellites of different formats - from PocketCube to small spacecraft of 200 kg mass launched in the interests of foreign customers from Japan, Saudi Arabia, UAE, Italy, Republic of Korea, Israel, Thailand, Canada, Brazil, Germany, Netherlands, Argentina, Hungary, Great Britain, Spain, Slovakia and Tunisia.

So this is a complete country list, 18 including Russia. Some conclusions:

- India is missing. Pixxel withdrew a satellite from the recent PSLV launch due to technical issues; probably they are also not present here.

Belated cross-post:
India to launch Bhutanese satellite in December 2021

https://zeenews.india.com/india/india-to-launch-bhutanese-satellite-in-december-2021-2381758.html
[dated August 4]
/.../
R Umamaheswaran, Scientific Secretary, ISRO, who was the keynote speaker at the event said, the satellite "will fly hopefully by end of this year in PSLV mission. That is what we are planning.”
/.../

... Whose name is INS-2B.

Source : https://www.wionews.com/india-news/india-begins-training-of-four-bhutanese-space-engineers-for-satellite-launch-352882

Edited
« Last Edit: 02/03/2022 10:11 pm by zubenelgenubi »
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Offline vyoma

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Re: PSLV-CA C53 - EOS-06 (aka Oceansat-3) - FLP - March 2022
« Reply #13 on: 02/21/2022 07:14 pm »
https://www.indiatoday.in/science/story/isro-pslv-c53-mission-oceansat-3-launch-date-time-s-somnath-space-mission-1915862-2022-02-21
[Feb 21]

Quote
Sources told India Today that the launch could likely be conducted by the end of March or the first week of April and could have five rideshare satellites. The satellites will be launched onboard PSLV-C53, which will deploy them in orbit around Earth. The payload is being readied in Ahmedabad and will take at least two weeks before assembling begins.

Quote
Sources added that the assembling process will take place in Bangalore before it is transported to Sriharikota for commencing launch activities. The entire process could take at least three to four weeks after which the satellites will be rolled onto the launch pad for final liftoff.
« Last Edit: 02/21/2022 09:09 pm by zubenelgenubi »

Offline zubenelgenubi

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Re: PSLV-CA C53 - EOS-06 (aka Oceansat-3) - SLP - April? 2022
« Reply #14 on: 02/21/2022 09:16 pm »
Is this a launch from SLP, allowing this launch campaign to begin while C52 occupied FLP, and to keep FLP free for SSLV D1?

https://www.indiatoday.in/science/story/isro-pslv-c53-mission-oceansat-3-launch-date-time-s-somnath-space-mission-1915862-2022-02-21
[Feb 21]

Quote
Sources told India Today that the launch could likely be conducted by the end of March or the first week of April and could have five rideshare satellites.
We know of Anand and INS-2B.  What are the other three?  Guardian alpha was to be aboard SpaceX Transporter-3 but it didn't launch aboard it.
https://space.skyrocket.de/doc_sdat/guardian.htm

And will deploying secondary payloads require adding SRMs to the PSLV?
« Last Edit: 02/21/2022 09:36 pm by zubenelgenubi »
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Offline zubenelgenubi

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Any new news?
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Launch may not happen in April as per this article: https://www.livemint.com/companies/news/pixxel-launches-its-first-satellite-aboard-spacex-to-launch-seven-more-by-march-2023-11648831839650.html  [dated Apr 1]

Quote
Eos-6 will be the primary payload aboard Isro’s Polar Satellite Launch Vehicle (PSLV), with Pixxel’s Anand satellite being one of the mission’s two secondary payloads. However, with the Oceansat mission working on a delayed timeline, the Eos-6 launch may miss its April 2022 launch window.

Looks like teething problems with EOS-6?

« Last Edit: 04/07/2022 01:58 am by zubenelgenubi »

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https://timesofindia.indiatimes.com/india/2-gaganyaan-abort-tests-in-august-december-relay-satellites-next-year/articleshow/90688885.cms  [dated Apr 6]

Quote
Further, the PSLV mission scheduled to launch earth observation satellite-6 (EOS-6) or Oceansat-3 will now only happen in August-September.

“This is a more complex satellite and unlike the earlier ones in the family where the optics (sensors) were imported this will have indigenous ones. There are several challenges that are being addressed,” Somanath said.
« Last Edit: 04/07/2022 02:03 am by zubenelgenubi »

Offline zubenelgenubi

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We know of Anand and INS-2B.  What are the other three?  Guardian alpha was to be aboard SpaceX Transporter-3 but it didn't launch aboard it.
https://space.skyrocket.de/doc_sdat/guardian.htm
The Guardian satellite launched on May 25 aboard SpaceX Transporter-5, as one of the ION SVC-006 payloads.
« Last Edit: 06/22/2022 08:00 pm by zubenelgenubi »
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« Last Edit: 12/01/2022 07:40 pm by zubenelgenubi »
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