Author Topic: ESA - Sentinel-1C updates & discussion  (Read 10726 times)

Offline jacqmans

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ESA - Sentinel-1C updates & discussion
« on: 08/07/2020 09:57 am »
Europe’s next radar Sentinel unfolds

07/08/2020

In two years’ time, the next Copernicus Sentinel-1 satellite will be launched to join its two siblings in orbit around Earth. With engineers busy building Sentinel-1C, they have recently tested the mechanism that opens its 12 m-long radar antenna.

Copernicus Sentinel-1C is the third Sentinel-1 satellite, following Sentinel-1A and Sentinel-1B, which were launched in April 2014 and April 2016, respectively. The three satellites are identical, each carrying an advanced radar instrument to provide an all-weather, day-and-night supply of imagery of Earth’s surface. The mission has been used to monitor the movement of icebergs, ice sheets and glaciers, ground deformation because of subsidence and earthquakes, floods after severe storms, and much more.

Sentinel-1C is set to ensure the continuity of critical radar images that so many Copernicus environmental services and scientists now rely on.

The mission’s technical success is thanks to its radar instrument – which when open spans a whopping 12 meters. Because the radar is folded to fit into the rocket fairing for liftoff, the deployment mechanism must be thoroughly tested to ensure that all will be well once it is in space.

https://www.esa.int/Applications/Observing_the_Earth/Copernicus/Sentinel-1/Europe_s_next_radar_Sentinel_unfolds
« Last Edit: 11/08/2023 04:22 am by FutureSpaceTourist »
Jacques :-)

Offline jacqmans

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Re: ESA - Sentinel-1C updates
« Reply #1 on: 08/07/2020 09:59 am »
Copernicus Sentinel-1C is the third Sentinel-1 satellite.

The three satellites are identical, each carrying an advanced radar instrument to provide an all-weather, day-and-night supply of imagery of Earth’s surface. When deployed in space, the radar measures a whopping 12 meters. Because the radar is folded to fit into the rocket fairing for liftoff, the deployment mechanism must be thoroughly tested to ensure that all will be well once it is in space. To simulate this operation in as near realistic environment as is possible on Earth, the radar is hung from a structure that helps to mimic weightlessness. The deployment test not only enables the hardware needed for the deployment to be tested, but also allows for the antenna planarity and flatness to be measured when fully deployed. The tests were carried out at Airbus in Germany.
Jacques :-)

Offline jacqmans

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Re: ESA - Sentinel-1C updates
« Reply #2 on: 08/07/2020 10:00 am »
Copernicus Sentinel-1C radar antenna deployed
Jacques :-)

Offline Rik ISS-fan

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Re: ESA - Sentinel-1C updates
« Reply #3 on: 08/15/2020 10:55 pm »
The launch for Sentinel 1C hasn't been ordered jet. Something with it being part of the EU Copernicus program, and the EU budget. ... ::) :-X

Offline Yiosie

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Re: ESA - Sentinel-1C updates
« Reply #4 on: 06/23/2022 07:20 pm »
Cross-post:

https://www.arianespace.com/press-release/arianespace-wins-new-contract-to-launch-sentinel-1c-observation-satellite-on-board-vega-c/
Quote
- The European Space Agency (ESA), on behalf of the European Commission, and Arianespace have signed a launch contract for the third radar satellite in the Sentinel-1 mission, Sentinel-1C.

– The launch is scheduled in the first half of 2023 from the Guiana Space Center, Europe’s Spaceport in French Guiana.

Offline eeergo

Re: Sentinel-1C - Vega-C - Q2 2023
« Reply #5 on: 09/29/2022 01:21 pm »
Sentinel-1C is in integrated testing in France, after being delivered from TAS-I's construction facility in Rome:

https://twitter.com/Thales_Alenia_S/status/1575474889179336704
-DaviD-

Offline FutureSpaceTourist

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Re: ESA - Sentinel-1C updates
« Reply #6 on: 10/01/2022 10:40 am »
https://twitter.com/esa_eo/status/1576154454923026434

Quote
Tests, tests and MORE TESTS for @CopernicusEU #Sentinel1C!
@Thales_Alenia_S has been taking very good care of the satellite this past months and making sure it's ready for launch. The most recent tests were the vibration tests and integration tests with antennas and solar panels.

Offline Rondaz

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Re: ESA - Sentinel-1C updates
« Reply #7 on: 10/25/2022 12:59 pm »
Another week, another satellite getting ready for launch!

Scheduled to liftoff in the first half of 2023, the @CopernicusEU #Sentinel1 C satellite has arrived safely at @Thales_Alenia_S plant in Cannes, France. Now it's time for some more tests

https://twitter.com/ESA_EO/status/1584836412683079681

Offline Rondaz

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Re: ESA - Sentinel-1C updates
« Reply #8 on: 10/25/2022 01:01 pm »
The #Copernicus #Sentinel1C all-weather radar imaging satellite has been transported from Rome, Italy to the @Thales_Alenia_S facility in Cannes, France for final pre-launch testing..

https://twitter.com/kryosat/status/1584824722902384640

Offline FutureSpaceTourist

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Re: ESA - Sentinel-1C updates
« Reply #9 on: 02/08/2023 11:56 am »
https://twitter.com/esa_eo/status/1623300814289743872

Quote
The @CopernicusEU #Sentinel1 C satellite is currently undergoing a series of tests at @Thales_Alenia_S  plant in Cannes, France, including the deployment of a massive satellite’s 10-m long solar wings!

🔗

https://www.esa.int/Applications/Observing_the_Earth/Copernicus/Sentinel-1/Europe_s_next_radar_satellite_tip-top_for_flight

Quote
Europe’s next radar satellite tip-top for flight
07/02/2023

ESA / Applications / Observing the Earth / Copernicus / Sentinel-1

Following its arrival at Thales Alenia Space’s cleanroom facilities in the south of France last October, Europe’s next radar satellite, Copernicus Sentinel-1C, has been put through its paces in a series of tests and demonstrated that it is in tip-top condition for flight. Engineers have also carried out the all-important and precise check to ensure that the satellite fits on the adapter that connects it to the rocket that will take it into orbit.

As the ‘C’ in its name suggests, Sentinel-1C is the third satellite of its kind and will continue the essential task of delivering radar images from space for numerous environmental services.

These services are linked, for example, to monitoring and mapping Arctic sea ice, maritime surveillance including oil-spill monitoring and ship detection, monitoring land-surface for motion risks, mapping for forest, water and soil management and mapping to support humanitarian aid and crisis situations.

Carrying advanced radar technology to provide an all-weather, day-and-night supply of images of Earth’s surface and developed by ESA, the Sentinel-1 satellites have raised the bar for spaceborne radar.

In April 2014, Copernicus Sentinel-1A was the first satellite to be launched for the European Union’s Copernicus programme, the Earth observation component of the European Union’s space programme.

Sentinel-1B followed in 2016 but its mission ended in December 2021 after experiencing a fault that left it unable to deliver data. Sentinel-1B will soon be deorbited.

Engineers at Thales Alenia Space, the Prime Contractor for Sentinel-1, have been working tirelessly to move forward getting Sentinel-1C ready for launch.

Most recently, they have carried out tests to ensure the satellite will survive the noise and vibrations that it will have to endure during liftoff and separation from the rocket. The sequences and mechanisms that deploy the satellite’s two 10-metre-long solar wings and 12-metre-long radar antenna have also been thoroughly tested.

Along with testing it in stowed and deployed configurations, electromagnetic and radio frequency compatibility tests, and more, the satellite passed its qualification and flight acceptance review at the end of last year.

The satellite has also undergone checks to ensure that it fits correctly to its Vega-C launch adapter.

Ramón Torres, ESA’s Sentinel-1 Project Manager, said, “Our industrial team has pulled out all the stops to get Sentinel-1C to this point following the loss of Sentinel-1B. I would like to thank everybody that has been working so hard on the mission.

“We hope to hear about a new launch slot after the investigation into the failure of the Vega-C launch last December.”

“Following the launch adapter fit check, the Sentinel-1C satellite will soon be shipped from Cannes and back to Rome for short-term storage until we can then ship it to the launch site in French Guiana.”

Offline FutureSpaceTourist

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Re: ESA - Sentinel-1C updates
« Reply #10 on: 04/26/2023 07:34 pm »
https://twitter.com/andrewparsonson/status/1651232274011004930

Quote
Breaking: I have heard from a source that @esa is looking to qualify Sentinel-1C to fly aboard a @SpaceX Falcon 9. The agency is keen to get the satellite into orbit ASAP with the Sentinel-1 constellation operating at a reduced capacity following the loss of Sentinel-1B.

Offline GWR64

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Re: ESA - Sentinel-1C updates
« Reply #11 on: 05/07/2023 07:24 pm »
Launch in December is the goal.

Quote
USN LEOP support for Sentinels-1C from Alaska
Sentinels-1C is the newest in a series of ESA sponsored earth observation
satellite that is planned to be launched in December 2023 in partnership with
NASA but owned by the EU. This LEOP support will begin one month after
launch and last for 180 days. The Sentinels-1C spacecraft will be supported by
the USN Alaska ground station, which has been fully coordinated by
Comsearch/Commscope.
...

Offline GWR64

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Re: ESA - Sentinel-1C updates
« Reply #12 on: 05/10/2023 05:52 pm »
Avio quarterly report:
Zefiro-40 for firing test
Quote
Z40 static firing test expected in June for Vega C return to flight
...
• Results of firing test key for Vega C flight by year-end

https://avio-data.teleborsa.it/2023%2f20230507-Avio-3M-2023-results_vDEF_1_20230510_101447.pdf
« Last Edit: 05/10/2023 05:56 pm by GWR64 »

Offline GWR64

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Re: ESA - Sentinel-1C updates
« Reply #13 on: 07/01/2023 08:32 am »
The launch will most likely be delayed.

https://www.avio.com/press-release/zefiro-40-firing-test-preliminary-outcome

Quote
Colleferro, 29 June 2023 – Yesterday a static firing test of the Zefiro 40 motor (second stage of the Vega C launcher) was performed according to schedule as one of the requirements linked to the return to flight of Vega C after the flight anomaly suffered on the last launch VV22 in December.

Following the recommendation of the Independent Enquiry Commission on VV22, the test was performed to qualify the performance of the motor with a new carbon-carbon material for its nozzle throat. The conditions of the test were purposely set as extremely severe in terms of max motor operating pressure in order to demonstrate a large performance margin with a view to ensure maximum flight reliability.

Preliminary analysis of test results (to be further investigated in the following days/weeks before reaching definitive conclusions) allowed to reach the following results. The new carbon-carbon material showed a nominal performance, closely linked to prediction. However, after 40 seconds into the test, another anomaly was revealed, leading to a reduction in overall pressure performance of the motor before the test completion planned at 97 seconds. This aspect will require further investigation and testing activity to be conducted by Avio and the European Space Agency to ensure optimal performance conditions.

The Vega launcher is unaffected by the performance of Zefiro 40, which is specific to Vega C. Vega next launch remains planned for September. The planning for the return to flight of Vega C is currently under evaluation, pending further analysis and investigation as above mentioned. Avio remains anyway committed to leverage the Vega launcher while Vega C prepares to return to flight.

Avio will communicate further details as soon as more detailed analysis is complete.

What does that mean? Will Sentinel 1C now also be transferred to the Falcon-9?
Aside from the Sentinel-1B replacement, how long will Sentinel-1A's fuel reserves last?
Do the EU already have to think about the launch of Sentinel-1D?
« Last Edit: 07/01/2023 08:35 am by GWR64 »

Offline Zed_Noir

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Re: ESA - Sentinel-1C updates
« Reply #14 on: 07/01/2023 12:59 pm »
<snip>
What does that mean? Will Sentinel 1C now also be transferred to the Falcon-9?
Aside from the Sentinel-1B replacement, how long will Sentinel-1A's fuel reserves last?
Do the EU already have to think about the launch of Sentinel-1D?
Speculate that the decision to transferred has been made, but not yet announced.

EU don't want to be without an operational Sentinel-1, when the replacement is in storage in a clean room. It will be too embarrassing. ;)

Online Josh_from_Canada

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Re: ESA - Sentinel-1C updates
« Reply #15 on: 07/03/2023 05:52 am »
Considering the Sentinel-1 satellites are built on the same bus as the COSMOS-SkyMed second generation, the process of moving it over to F9 if ESA chooses to would be assisted by the similar requirements between the missions
Launches Seen: Atlas V OA-7, Falcon 9 Starlink 6-4, Falcon 9 CRS-28,

Offline GWR64

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Re: ESA - Sentinel-1C updates
« Reply #16 on: 09/24/2023 10:13 am »
Launch in December is the goal.
Quote
USN LEOP support for Sentinels-1C from Alaska
Sentinels-1C is the newest in a series of ESA sponsored earth observation satellite that is planned to be launched in December 2023 in partnership with NASA but owned by the EU. This LEOP support will begin one month after launch and last for 180 days. The Sentinels-1C spacecraft will be supported by the USN Alaska ground station, which has been fully coordinated by Comsearch/Commscope.
...

Universal Space Network, Inc has filed another application with the FCC.
The narrative text has been slightly changed.
SES-STA-20230918-02097  [09/18/2023]
Quote
USN LEOP support for Sentinels-1C from Alaska
Sentinels-1C is the newest in a series of ESA sponsored earth observation satellite that is planned to be launched earliest in December 2023 in partnership with NASA but owned by the EU. This LEOP support will begin one month after launch and last for 180 days. The Sentinels-1C spacecraft will be supported by the USN Alaska ground station, which has been fully coordinated by Comsearch/Commscope.
...
With Vega-C a launch will probably only be possible in a year at the earliest, I think.
A new launch order is not (publicly) known.
In addition to the Falcon 9, a launch with GSLV-MK2 would theoretically also be possible.
But in what time frame?

Incidentally, Sentinel-1C has been missing from the Arianespace launch schedule for some time.  ???
« Last Edit: 09/26/2023 06:26 am by zubenelgenubi »

Online zubenelgenubi

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Re: ESA - Sentinel-1C updates
« Reply #17 on: 09/26/2023 06:32 am »
With Vega-C a launch will probably only be possible in a year at the earliest, I think.

A new launch order is not (publicly) known.
In addition to the Falcon 9, a launch with GSLV-MK2 would theoretically also be possible.
But in what time frame?

Incidentally, Sentinel-1C has been missing from the Arianespace launch schedule for some time.  ???
Like most of us, I suspect a launch contract with SpaceX will be announced any day now.  (No inside information, only an inference from public information.) 8)
« Last Edit: 09/26/2023 06:33 am by zubenelgenubi »
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Re: ESA - Sentinel-1C updates
« Reply #18 on: 10/03/2023 02:33 am »
With Vega-C a launch will probably only be possible in a year at the earliest, I think.

A new launch order is not (publicly) known.
In addition to the Falcon 9, a launch with GSLV-MK2 would theoretically also be possible.
But in what time frame?

Incidentally, Sentinel-1C has been missing from the Arianespace launch schedule for some time.  ???
Like most of us, I suspect a launch contract with SpaceX will be announced any day now.  (No inside information, only an inference from public information.) 8)
From europeanspaceflight writer:

Quote
I actually heard from someone inside the Sentinel-1C team today. There has been no confirmation just yet, but it looks like they'll be looking for an alternative ride for the satellite.

https://twitter.com/AndrewParsonson/status/1708823417401557420?s=20

Edit: Just to add, I watched the media conference that ESA had this morning, someone did ask about this launch, and all Stephane and Josef said was that the European Commission will make that decision on where and when to launch it, and they dont really have anything more to say. ~27 minutes into the briefing.
« Last Edit: 10/03/2023 02:50 am by spacenuance »

Offline FutureSpaceTourist

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Re: ESA - Sentinel-1C updates & discussion
« Reply #19 on: 11/08/2023 04:22 am »
Crosspost:

https://twitter.com/andrewparsonson/status/1721977495451259043

Quote
Still whispers, but it looks like Sentinel-1C, which is currently scheduled to be launched aboard Vega C in 2024, will be launched aboard Falcon 9. It will likely first be announced that it will be launched aboard the Vega C return to flight mission. However, not only will Vega C likely not make the late 2024 deadline but it’s also considered unlikely that it will have the performance on the return to flight mission for S1C, as it's at the high end of the vehicle's performance envelope. When the contract was initially signed in 2022, S1C was slated to be launched in the first half of 2023. Image credit: IABG

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