Author Topic: PSLV-XL C52 - RISAT-1A (aka EOS-4) - FLP - 14 February 2022 (00:29 UTC)  (Read 16890 times)

Offline K210

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According to recent answers provided by ISRO to questions about missions slated for execution in 2020 it seems RISAT-1B is planned for launch this year ahead of RISAT-1A. No details about mission number but if we assume launch mass is similar to RISAT-1 launched in 2012 then this will be a XL launch.

EDIT: (August 2020) RISAT-1A may be getting launched before RISAT-1B after all.

Quote

GOVERNMENT OF INDIA
MINISTRY OF SPACE
LOK SABHA
UNSTARRED   QUESTION NO:   3939
ANSWERED ON:    18.03.2020
Earth Observation Satellites
Kripanath Mallah
V. Kalanidhi
Will the Minister of

SPACE   be pleased to state:-


(a) whether the Government is planning to launch some Earth Observation Satellites within the country;
(b) if so, the details thereof;
(c) the details of the funds estimated for this;
(d) the details of the targets set; and
(e) the time by which these are likely to be launched?


ANSWER
THE MINISTER OF STATE IN THE MINISTRY OF PERSONNEL, PG & PENSIONS AND IN THE PRIME MINISTER’S OFFICE
(DR. JITENDRA SINGH):

(a) Yes Sir, Government is planning to launch 10 Earth Observation Satellites in 2020-21, the details of which are as follows:
OCEANSAT-3, GISAT-2, RISAT-2A, HRSAT-1/2/3, CARTOSAT-3A, INSAT-3DS, RISAT-1B, OCEANSAT-3A


(b) to (e)
The funds required for these projects have been estimated as Rs. 701.5 Cr.
A target of launching up to 10 earth observation satellites has been set for the fiscal year 2020-21.



Original source: http://164.100.47.194/Loksabha/Questions/QResult15.aspx?qref=15292&lsno=17
« Last Edit: 02/08/2022 10:59 am by Galactic Penguin SST »

Offline zubenelgenubi

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Re: PSLV-XL C52 - EOS-04 (aka RISAT-1A) - July 2021
« Reply #1 on: 03/12/2021 07:44 pm »
From the government annual (2020/2021) report (pdf attached here), pp. 23-24.  The description matches that of RISAT-1A.
Quote
EOS-04: EOS-04 is a repeat Satellite of RISAT-1 and is configured to ensure continuity of Synthetic Aperture Radar in C-Band providing Microwave data to the user community for operational services. The satellite has the capability to operate in day, night and all weather conditions with a Mission life of 5 years and provides imaging data for various applications related to Land, Water and environment which find useful inputs for Agriculture, Forestry and Water resource management.

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.


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

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Re: PSLV-XL C52 - EOS-04 (aka RISAT-1A) - July 2021
« Reply #2 on: 07/16/2021 08:16 am »
September 2021, according to the updated info on https://www.shar.gov.in/sdscshar/index.jsp

Offline zubenelgenubi

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Re: PSLV-XL C52 - EOS-04 (aka RISAT-1A) - September 2021
« Reply #3 on: 08/12/2021 05:35 pm »
Will this launch go ahead, on-schedule, despite today's loss of a GSLV MkII?  We shall see.

The GSLV MkII third stage is not used aboard PSLV--no hardware or software commonality?  ISRO may choose to review launch campaign processes.
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Offline Yiosie

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Re: PSLV-XL C52 - EOS-04 (aka RISAT-1A) - September 2021
« Reply #4 on: 09/11/2021 10:54 pm »
Unverified, but this Twitter user claims that EOS-04 arrived at SDSC SHAR on September 6 and vehicle assembly has begun in preparation for launch later this month.

https://twitter.com/Vishesh03625993/status/1434784407777275904

Quote
#EOS04 mission update

Integration of #PSLVC52 has started at vehicle building assembly at SDSC SHAR as EOS 04 satellite arrived today at FLP.

Information given by @GareebiKi

https://twitter.com/Vishesh03625993/status/1435546618263048195

Quote
September is targeted

The launch date will be finalised soon.

Offline K210

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Re: PSLV-XL C52 - RISAT-1A (aka EOS-4) - September 2021
« Reply #5 on: 09/12/2021 12:43 am »
^^ PSLV launch campaign takes a minimum of 45 days so we can rule out any launch this month. I would put this launch as NET mid-October. Also RISAT-1A is a very large and complex satellite, i remember the original RISAT-1 went through extra ground tests before launch so that may also delay this launch further.
« Last Edit: 09/12/2021 04:38 am by K210 »

Offline zubenelgenubi

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Re: PSLV-XL C52 - RISAT-1A (aka EOS-4) - NET October 2021
« Reply #6 on: 10/07/2021 09:26 pm »
Any new news?
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Offline Yiosie

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Re: PSLV-XL C52 - RISAT-1A (aka EOS-4) - NET October 2021
« Reply #7 on: 10/07/2021 10:49 pm »
Any new news?

Looks like the launch has been delayed in the review process:

Isro lines up 3 Earth Observation Satellites with key indigenous technologies [dated Oct. 2]

Quote
EOS-4 was to be originally launched in September, sources in Isro said, adding that the review committee had not cleared the satellite, which postponed the launch.

Offline zubenelgenubi

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Re: PSLV-XL C52 - RISAT-1A (aka EOS-4) - 2021
« Reply #8 on: 10/31/2021 10:23 pm »
Cross-post:
https://www.deccanchronicle.com/nation/politics/261021/assembly-of-pslv-stopped-to-involve-private-sector-in-space-missions.html
[dated November 1 IST]
Quote
The assembly of the Polar Satellite Launch Vehicle (PSLV), which is due to launch an earth observation satellite (EOS) in the third quarter, has been stopped at the Satish Dhawan Space Centre, Sriharikota range, according to reliable sources.

Engineers were tight-lipped when asked for the reasons for the standstill. Sources said that the first stage of the rocket had been assembled and they were awaiting directions to proceed further.
<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.
<snip>
« Last Edit: 10/31/2021 10:27 pm by zubenelgenubi »
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Offline zubenelgenubi

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Re: PSLV-XL C52 - RISAT-1A (aka EOS-4) - 2022?
« Reply #9 on: 12/17/2021 12:55 am »
Launch delayed into 2022?

Belated cross-post:
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."

No news for a month?
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Offline Galactic Penguin SST

Re: PSLV-XL C52 - RISAT-1A (aka EOS-4) - 2022?
« Reply #10 on: 12/17/2021 02:05 am »
Launch delayed into 2022?

Belated cross-post:
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."

No news for a month?

Apparently now planned for January 2022:

A0175/21 - ALTITUDE RESERVATION FOR LAUNCH OF ONE PSLV C52 ROCKET FROM INDIA
WI AN AREA BOUNDED BY FLW COORD:
2955S 07345E
3035S 07620E
4005S 07350E
3925S 07115E. SFC - UNL, FROM 06 JAN TO 04 FEB 2022 BTN 0000 AND 0400, 06 JAN
00:00 2022 UNTIL 04 FEB 04:00 2022. CREATED: 15 DEC 05:55 2021
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Offline TheVarun

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Re: PSLV-XL C52 - RISAT-1A (aka EOS-4) - January 2022
« Reply #11 on: 12/17/2021 01:24 pm »
 Finally, some good and solid news. So anytime between Jan 6th and a few weeks later. Any ideas as to what's holding up the SSLV-D1? 
« Last Edit: 12/17/2021 01:57 pm by TheVarun »

Offline zubenelgenubi

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Re: PSLV-XL C52 - RISAT-1A (aka EOS-4) - NET 6 January 2022
« Reply #12 on: 12/25/2021 06:26 pm »
Quote
PSLV-C52 is scheduled to launch EOS-04, an earth observation satellite, in the first 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
« Last Edit: 12/25/2021 06:33 pm by zubenelgenubi »
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Offline zubenelgenubi

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Re: PSLV-XL C52 - RISAT-1A (aka EOS-4) - NET January 6, 2022
« Reply #13 on: 12/26/2021 01:17 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.

A senior scientist from Isro headquarters told TOI that Risat-1A got into serious technical issues after more than 20 TR [transmit and receive] modules fabricated indigenously for the first time failed ground tests.

"...When so many modules fail ground tests, unless we understand the criticality of the problem, we cannot go ahead and launch. The satellite could have gone to waste if we went ahead and we had Rs 700 crore at stake. Also, with 5G coming, the frequency of the satellite had to be changed to prevent interference. These are the reasons for delay. Now the technical issues have been addressed and we will start preparations for the launch soon," the scientist said.

TR modules refer to transmit and receive modules that help in telemetry and tracking of the satellites, and another scientist said that the Risat-1A has around 400 of these.

The above could also be the reason for the earlier reported halt assembling PSLV C52?
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Offline zubenelgenubi

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This will launch from the FLP (First Launch Platform)?

Any news of an impending launch campaign?
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Offline IanO

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This will launch from the FLP (First Launch Platform)?

Any news of an impending launch campaign?
January 6th has come and gone.  Does this launch have a new NET date?
psas.pdx.edu

Offline Bean Kenobi

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Re: PSLV-XL C52 - RISAT-1A (aka EOS-4) - FLP - January 2022 (?)
« Reply #16 on: 01/07/2022 02:51 pm »
This will launch from the FLP (First Launch Platform)?

Any news of an impending launch campaign?
January 6th has come and gone.  Does this launch have a new NET date?

No need of a new NET date, we know this : "3925S 07115E. SFC - UNL, FROM 06 JAN TO 04 FEB 2022 BTN 0000 AND 0400, 06 JAN
00:00 2022 UNTIL 04 FEB 04:00 2022. CREATED: 15 DEC 05:55 2021" from NOTAM.

Offline zubenelgenubi

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Cross-post re: PSLV C53:
According to an article in Telugu published January 3, PSLV C53 with Oceansat-3 should launch from First launch Pad on January 20 or in February if the satellite is delayed.

Will the C53 launch proceed first, from FLP?

Or is C52 launching from SLP, before or after C53?
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Offline russianhalo117

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Re: PSLV-XL C52 - RISAT-1A (aka EOS-4) - FLP - January 2022 (?)
« Reply #18 on: 01/09/2022 09:23 pm »
Cross-post re: PSLV C53:
According to an article in Telugu published January 3, PSLV C53 with Oceansat-3 should launch from First launch Pad on January 20 or in February if the satellite is delayed.

Will the C53 launch proceed first, from FLP?

Or is C52 launching from SLP, before or after C53?
At some point (presumably now NET 2022 since COVID19 delayed the space centre's timeline) they plan to shift all PSLV launches to using the new infrastructure attached to FLP.  This allows GSLV family to have a higher flight rate from SLP.
« Last Edit: 01/09/2022 09:25 pm by russianhalo117 »

Offline Yiosie

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Re: PSLV-XL C52 - RISAT-1A (aka EOS-4) - FLP - January 2022 (?)
« Reply #19 on: 01/12/2022 07:11 pm »
New NOTAM for launch in February:

A0004/22 NOTAMR A0175/21
Q) FIMM/QRALW/IV/NBO/W/000/999/2530S06515E999
A) FIMM
B) 2202040000 C) 2203050400
D) FROM 04 FEB TO 05 MAR 2022 BTN 0000 AND 0400
E) ALTITUDE RESERVATION FOR LAUNCH OF ONE PSLV C52 ROCKET FROM INDIA
WI AN AREA BOUNDED BY FLW COORD:
2955S 07345E
3035S 07620E
4005S 07350E
3925S 07115E
F) SFC G) UNL

Tags: risat-1a pslv-xl India 
 

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