Author Topic: GSLV Mk II F15? - NISAR - SLP - NET late May 2024  (Read 65616 times)

Offline sanman

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ISRO and NASA may be in discussions for joint production of a satellite together:

http://economictimes.indiatimes.com/news/politics-and-nation/nasa-isro-in-talks-for-developing-satellite-jointly/articleshow/21455665.cms

I wonder who will launch it? India may be cheaper in this respect.
« Last Edit: 04/03/2024 01:01 am by zubenelgenubi »

Offline antriksh

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Re: ISRO-NASA Joint Satellite Project
« Reply #1 on: 07/29/2013 12:57 pm »
ISRO has experience in designing Dual band SAR. It has designed one for Chandrayaan-2 mission.

A Dual-frequency Spaceborne SAR Mission Concept for Carbon Disturbance Measurements and Characterization

Paul A Rosen, Jet Propulsion Laboratory, [email protected] (Presenter)
Ralph Dubayah, University of Maryland, [email protected]
Bradford H Hager, Massachusetts Institute of Technology, [email protected]
Ian Joughin, University of Washington, [email protected]
Since the 2007 National Academy of Science “Decadal Survey” report “Earth Science and Applications from Space: National Imperatives for the Next Decade and Beyond,” the National Aeronautics and Space Administration (NASA) has been studying concepts for a Synthetic Aperture Radar (SAR) mission to determine Earth change in three disciplines – ecosystems, solid earth, and cryospheric sciences. One of the most promising and original concepts involves an innovative international partnership between NASA and the Indian Space Research Organization (ISRO). Previous NASA concepts had focused on exploiting an L-band array-fed reflector SAR configuration that enabled > 200 km swath at full SAR resolution and full polarimetry simultaneously in order to meet requirements in all three disciplines. The electronics in this design are relatively compact, allowing for straightforward addition of feed array elements at other frequencies. As the partnership concept with ISRO developed, it became clear that flying dual L- and S-band SAR capabilities, with L-band electronics supplied by NASA and S-band electronics by ISRO, would satisfy science and application requirements of the US and India. A dual-frequency fully polarimetric SAR with the potential for global coverage every 12 days would offer unprecedented capability that researchers could exploit in new and exciting ways. The joint NASA/ISRO science requirements being formulated for ecosystems cover biomass disturbance, agriculture, wetlands and coastal processes, alpine vegetation, and high-resolution soil moisture. The two wavelength system has a number of advantages, including extending the sensitivity of biomass change and regrowth measurements to lower levels of biomass, improved classification of vegetation types, and possibilities for improved vegetation structure estimates, as well as mitigation of ionospheric effects. This poster will provide an overview of the conceptual system and highlight some of the anticipated science products.
« Last Edit: 07/29/2013 02:07 pm by antriksh »
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline antriksh

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Re: ISRO-NASA Joint Satellite Project
« Reply #2 on: 07/29/2013 02:16 pm »
ISRO and NASA may be in discussions for joint production of a satellite together:

http://economictimes.indiatimes.com/news/politics-and-nation/nasa-isro-in-talks-for-developing-satellite-jointly/articleshow/21455665.cms

I wonder who will launch it? India may be cheaper in this respect.

The sat might be based on IRS series
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline vyoma

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Re: ISRO-NASA Joint Satellite Project
« Reply #3 on: 07/31/2014 04:44 pm »
http://timesofindia.indiatimes.com/Home/Science/Isros-instrument-design-passes-Nasa-review/articleshow/39369930.cms

Quote
From the drawing board to the review room: Indian Space Research Organisation (Isro) and US' National Aeronautics and Space Administration (Nasa), who were in talks to co-develop a dual frequency synthetic aperture radar late last year. Now, the talks have converted into a project, with Nasa even having cleared Isro's instrument design.

Quote
The project, which Nasa terms Nasa-Isro Synthetic Aperture Radar (Nisar) will use advanced imaging that will provide an unprecedented, detailed view of the earth. "It is being designed to observe and take measurements of some of the planet's most complex processes, including ecosystem disturbances, ice-sheet collapse, and natural hazards such as earthquakes, tsunamis, volcanoes and landslides," Nasa's Jet Propulsion Laboratory has said.

Quote
This was just after the initial mission concept review was done on October 15-16, 2013. On March 19, 2014, the project passed the crucial Key Decision Point-A (KDP-A) review, which, is an important stage in Nasa's Exploration Systems Mission Directorate's project life cycle module.

Following this, the agency will begin reviewing the critical design review, systems integration and operational readiness. Subsequent to this, on March 27, 2014, Isro's instrument design passed Nasa's review, which sources said, is another level of acceptability and a sign that the project's a 'go ahead'.

Offline vyoma

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Re: ISRO-NASA Joint Satellite Project
« Reply #4 on: 07/31/2014 04:54 pm »
NI-SAR slides:
http://trs-new.jpl.nasa.gov/dspace/bitstream/2014/44507/1/13-5121_A1b.pdf

Quote
Mission concept:
* Launch date: September 2020
* New Two-frequency L- and S-band Synthetic Aperture Radar(SAR)
* New Sweep SAR technique for rapid global data collection
* Orbit:
     * 747km altitude circular
     * 98 degrees inclination
     * Sun-synchronous, dawn-dusk (6 AM – 6 PM)
     * Exact 12-day repeat within +/- 250 m
* 3 years science operations, but could last many more years
* Data are 10 m resolution or coarser, suitable for science and civilian applications
* Science data from both L- and S-band SAR will be available without any restrictions


Quote
Radar payload concept:
* World's first dual frequency (L- and S- band) spaceborne SweepSAR
* Repeat pass interferometry
* Fully polarimetric SAR capability
* Array-fed reflector (boresight at ~37 degrees from nadir, transmitting a fan beam, and receiving with multiple pencil beams)
    * Shared reflector for both L- and S-bands
    * Separate L- and S-band feeds
    * 240 km swath
    * 12 m diameter reflector
* Observatory pointing control +/- 0.1 degree
* Active front-end electronics, high efficiency T/R module, high rate analog-to-digital converter (ADC), and on-board processing
« Last Edit: 07/31/2014 05:29 pm by vyoma »

Offline Steven Pietrobon

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Re: ISRO-NASA Joint Satellite Project
« Reply #5 on: 08/01/2014 07:28 am »
That presentation showed GSLV-II as the launch vehicle.
« Last Edit: 08/01/2014 07:29 am by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline vyoma

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Re: ISRO-NASA Joint Satellite Project
« Reply #6 on: 08/01/2014 08:06 am »
Yes. GSLV Mk2 seems to be launch vehicle.
« Last Edit: 08/01/2014 08:07 am by vyoma »

Offline antriksh

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Re: ISRO-NASA Joint Satellite Project
« Reply #7 on: 08/01/2014 09:48 am »
NISAR slide mentions that the spacecraft will be based on I3k bus. That looks within range of what current GSLV MK2 can launch (attached slide) to SSPO. Some modification might/might not be required to cryogenic stage (current C12.8 to C15) as current GSLV mk2 uses stage 2 of 39.5 T propellant.
« Last Edit: 08/01/2014 09:57 am by antriksh »
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda


Offline sanman

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Re: ISRO-NASA Joint Satellite Project
« Reply #9 on: 10/10/2014 01:30 am »
I'd like to ask why NASA and ISRO have chosen this particular project to collaborate on. Is it for the purpose of harmonizing Synthetic Aperture Radar specifications between NASA and ISRO? I'm thinking that this is the reason, due to the past attempt at collaboration between ISRO's Chandrayaan-1 mission and NASA's Lunar Reconaissance Orbiter in the bi-static ice detection experiment.

What might be the follow-on consequences of NASA-ISRO collaboration on NISAR?

I'm thinking that there could be more missions in the future which will attempt to repeat such collaborative bi-static ice detection observations in other parts of the solar system. Harmonized specs on SAR would help to make such missions more successful.

What do you all think?


Offline vyoma

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Re: ISRO-NASA Joint Satellite Project
« Reply #10 on: 10/17/2014 04:31 am »
http://sac.isro.gov.in/SACSITE/nisar/AboutWorkshop.html

Quote
NISAR science workshop is planned to be organized at Space Applications Centre (ISRO), Ahmedabad during 17-18 November 2014 with the primary objectives of: informing and involving Indian applications community about NISAR mission; exploring new applications of dual-frequency SAR data; and searching for collaborative opportunities. A team of scientists from NASA / USA is likely to participate in the workshop.

The workshop invites from the participants, new ideas and innovations on SAR applications for societal benefit. Interested participants will display a poster or make 5-minutes presentations showing new applications and innovative techniques for SAR data utilization. Selected ideas have a chance for being considered for support under NISAR Science programme.

Offline vyoma

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Re: ISRO-NASA Joint Satellite Project
« Reply #11 on: 11/16/2014 12:29 pm »
NISAR workshop topics and program guide (17 and 18 Nov 2014):
http://www.sac.gov.in/nisar/PROGRAM%20for%20NISAR%20Science%20Workshop.pdf

Offline sanman

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Re: ISRO-NASA Joint Satellite Project
« Reply #12 on: 05/16/2015 11:58 pm »

Offline vyoma

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Re: ISRO-NASA Joint Satellite Project
« Reply #13 on: 05/27/2015 03:18 am »
http://indianexpress.com/article/technology/science/new-isro-satellite-will-revolutionise-internet-in-india-read-how/

Quote
Meanwhile, SAC which is a part of the NISAR (NASA-ISRO SAR) mission – a joint project between NASA and ISRO – has completed the baseline design review of the payload that will help study the hazards and global environmental change.

Offline Ohsin

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Re: ISRO-NASA Joint Satellite Project
« Reply #14 on: 07/31/2015 04:38 am »
Quote
30-July-2015 17:34 IST
ISRO and NASA jointly working on NASA-ISRO Synthetic Aperture Radar (NISAR) mission

ISRO and NASA are jointly working on the NASA-ISRO Synthetic Aperture Radar (NISAR) mission to codevelop and launch a dual frequency synthetic aperture radar satellite.

NASA-ISRO Synthetic Aperture Radar (NISAR) mission is a dual frequency (L & S Band) Radar Imaging Satellite. In this joint mission, JPL/ NASA will be responsible for design & development of L-band SAR, 12m unfurlable antenna, GPS system and data recorder. ISRO will be responsible for design & development of S-band SAR, Spacecraft Bus, data transmission system, Spacecraft integration & testing, launch using GSLV and on-orbit operations. The aim and objectives of NISAR mission are:

• Design, Develop and launch a Dual frequency (L and S Band) Radar Imaging Satellite.

• Explore newer application areas using L and S band microwave data, especially in natural resources mapping & monitoring; estimating agricultural biomass over full duration of crop cycle; assessing soil moisture; monitoring of floods and oil slicks; coastal erosion, coastline changes and variation of winds in coastal waters; assessment of mangroves; surface deformation studies due to seismic activities etc.

Implementation Arrangement (IA), defining the roles and responsibilities of ISRO and NASA has been signed by the two agencies in September 2014. ISRO has completed the Baseline Design Reviews of Spacecraft and S-band SAR payload. JPL has successfully completed the Mission Concept and Key Decision Point reviews. The first Joint Steering Group (JSG) meeting of NISAR was held on July 21, 2015. NISAR satellite is expected to be launched during the year 2021.

The cost of the project comprises of (i) cost of ISRO’s work share, which is estimated to be Rs 788.00 Cr and (ii) cost of JPL’s work share, which is expected to be around USD 808 millions.


This information was given by the Union Minister of State (Independent Charge) Development of North-Eastern Region (DoNER), MoS PMO, Personnel, Public Grievances & Pensions, Atomic Energy and Space, Dr Jitendra Singh in reply to unstarred question in Rajya Sabha today.

****
emphasis mine
http://pib.nic.in/newsite/PrintRelease.aspx?relid=123963
"Well, three cheers to Sharma, but our real baby is INSAT."

Offline vyoma

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Re: ISRO-NASA Joint Satellite Project
« Reply #15 on: 08/28/2015 03:29 am »
http://economictimes.indiatimes.com/news/science/isro-working-with-nasa-to-make-maiden-launch-in-2021/articleshow/48701182.cms

Quote
SRIHARIKOTA (AP): India and US have set a target of 2021 to put their collaborative earth observation satellite NISAR in orbit, ISRO Chairman A S Kiran Kumar said today.

Indian Space Research Organisation (ISRO) was working with National Aeronautics and Space Administration (NASA) of the US to undertake the launch of NISAR by 2021, he told reporters here after the successful launch of GSAT-6 onboard GSLV-D6.

"One of the GSLV Mark II will carry NASA's satellite NISAR in 2021. There is a very good chance of commercial requirement. Currently we are working on it," he said.

Offline worldtimedate

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Re: ISRO-NASA Joint Satellite Project
« Reply #16 on: 08/28/2015 07:01 am »

Isro Chairman confirms that GSLV-D6 Rocket will be used for launching ISRO-NASA mission. Here is the report from the Hindu.
ISRO-NASA mission to use GSLV-D6 rocket


Quote
NASA ISRO SAR Mission (NISAR) is expected to be launched on board GSLV-D6 in 2020-21, ISRO Chairman A.S. Kiran Kumar said,

Answering a query, a senior ISRO scientist said that using India’s GSLV and not going for space agencies abroad for launching satellites weighing up to 2 tonne would help save on foreign exchange. GSLV will cost just one third of the cost we have to spend on foreign agencies, he said.

A senior official said that there were about 10 Indian satellites which were lined up to be launched on board GSLV -D6.



« Last Edit: 09/28/2015 12:50 pm by Chris Bergin »

Offline input~2

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Re: ISRO-NASA Joint Satellite Project
« Reply #17 on: 08/28/2015 01:27 pm »


Isro Chairman confirms that GSLV-D6 Rocket will be used for launching ISRO-NASA mission. Here is the report from the Hindu.
ISRO-NASA mission to use GSLV-D6 rocket


Quote
NASA ISRO SAR Mission (NISAR) is expected to be launched on board GSLV-D6 in 2020-21, ISRO Chairman A.S. Kiran Kumar said,

Answering a query, a senior ISRO scientist said that using India’s GSLV and not going for space agencies abroad for launching satellites weighing up to 2 tonne would help save on foreign exchange. GSLV will cost just one third of the cost we have to spend on foreign agencies, he said.

A senior official said that there were about 10 Indian satellites which were lined up to be launched on board GSLV -D6.


--- [ --- ]

It won't be D6 which was launched yesterday, this is just a launch sequence number
see: http://www.isro.gov.in/launchers/gslv

Offline vyoma

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Re: ISRO-NASA Joint Satellite Project
« Reply #18 on: 11/04/2015 09:29 am »
http://www.satnews.com/story.php?number=2012261858

Quote
The NASA Jet Propulsion Laboratory (JPL) announced their selection of Astro Aerospace, a Northrop Grumman Corporation (NYSE:NOC) company, to design and manufacture the radar antenna for its NASA-ISRO Synthetic Aperture Radar (NISAR) satellite.

Offline Ohsin

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Re: ISRO-NASA Joint Satellite Project
« Reply #19 on: 11/15/2015 02:41 am »
Quote
NASA-ISRO scientists set to come together for outreach programme

On Monday, some of the NASA scientists will be visiting Gujarat Science City for a special outreach programme with students. “A team of seven scientists from NASA’s Jet Propulsion Laboratory and three others from ISRO will be visiting us. They will be largely be talking about the NISAR mission to about 200-odd science and engineering students,” said Narottam Sahoo, advisor and member secretary at Gujarat Council of Science and Technology (GUJCOST) which is organising the event along with Gujarat Science City.

http://indianexpress.com/article/cities/ahmedabad/nasa-isro-scientists-set-to-come-together-for-outreach-programme/
« Last Edit: 11/15/2015 02:41 am by Ohsin »
"Well, three cheers to Sharma, but our real baby is INSAT."

Offline Ohsin

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Re: ISRO-NASA Joint Satellite Project
« Reply #20 on: 11/20/2015 05:12 am »
"Well, three cheers to Sharma, but our real baby is INSAT."

Offline Ohsin

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Re: ISRO-NASA Joint Satellite Project
« Reply #21 on: 04/13/2016 02:17 am »
Quote
Airbus Defence and Space will supply their latest generation Solid State Recorder for the NASA-ISRO Synthetic Aperture Radar (NISAR) mission, slated for launch in 2020.
<snip>
Jean-Pierre Domenget, who heads up the company's Space Equipment division, reported that the Solid State Recorders will offer 10 Tbit and more as far as capacity is concerned, all in a unit that has a total mass of less than 25 kg.

http://www.satnews.com/story.php?number=82202807
"Well, three cheers to Sharma, but our real baby is INSAT."

Offline input~2

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Offline vyoma

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Re: NISAR, NASA-ISRO SAR Joint Satellite Project, GSLV, 2021
« Reply #23 on: 08/13/2016 11:05 pm »

Offline vyoma

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Re: NISAR, NASA-ISRO SAR Joint Satellite Project, GSLV, 2021
« Reply #24 on: 08/16/2016 07:00 pm »
https://globenewswire.com/news-release/2016/08/16/864626/10164579/en/Northrop-Grumman-s-Astro-Aerospace-Completes-NISAR-Reflector-Preliminary-Design-Review.html

Quote
Astro Aerospace, a Northrop Grumman Corporation (NYSE:NOC) company, has completed the preliminary design review (PDR) of the AstroMesh® radar antenna reflector for the NASA-ISRO Synthetic Aperture Radar (NISAR) satellite. The antenna reflector, furnished by Astro Aerospace, is part of the NISAR L-band synthetic aperture radar managed by NASA's Jet Propulsion Laboratory.

Offline Shams

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Re: NISAR, NASA-ISRO SAR Joint Satellite Project, GSLV, 2021
« Reply #25 on: 08/17/2016 10:59 am »
Can anybody tell about the total mass of this satellite?

Offline vineethgk

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Re: NISAR, NASA-ISRO SAR Joint Satellite Project, GSLV, 2021
« Reply #26 on: 08/17/2016 01:55 pm »
Can anybody tell about the total mass of this satellite?
As per previous reports, it was something in the range of 3 tonnes I believe.
« Last Edit: 08/17/2016 02:01 pm by vineethgk »

Offline vyoma

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Re: NISAR, NASA-ISRO SAR Joint Satellite Project, GSLV, 2021
« Reply #27 on: 08/17/2016 05:41 pm »
ISRO and NASA-JPL are developing "L & S Band Airborne SAR" as a precursor to satellite payloads.
« Last Edit: 10/12/2016 06:40 pm by vyoma »

Offline vyoma

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Re: NISAR, NASA-ISRO SAR Joint Satellite Project, GSLV, 2021
« Reply #28 on: 08/17/2016 05:48 pm »
"L & S Band Airborne SAR" application research announcement.

Offline vyoma

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Re: NISAR, NASA-ISRO SAR Joint Satellite Project, GSLV, 2021
« Reply #29 on: 08/17/2016 06:20 pm »


Offline Steven Pietrobon

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Re: NISAR, NASA-ISRO SAR Joint Satellite Project, GSLV, 2021
« Reply #31 on: 08/22/2016 06:23 am »
GSLV Mk II not GSLV

Umm, it says GSLV Mark II!
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline tehwkd

GSLV Mk II not GSLV

Umm, it says GSLV Mark II!

And the title of this topic says GSLV. Which is why I said "GSLV Mk II not GSLV".

I did not say "GLSV Mk II not, GSLV". :)
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Offline input~2

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Title corrected, thanks!

Offline Shams

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GSLV mk2 payload capacity max 2.5 ton. I think  satellite capacity max 3.0 ton. How it is possible? Will ISRO increase the pay load capacity upto 3.00 ton

Offline vineethgk

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GSLV mk2 payload capacity max 2.5 ton. I think  satellite capacity max 3.0 ton. How it is possible? Will ISRO increase the pay load capacity upto 3.00 ton
GSLV's payload capability to SSO is in the range of 3.1 tonnes as per an older ISRO presentation posted in this thread (link). 2.5T is its GTO capability.
« Last Edit: 08/22/2016 12:07 pm by vineethgk »

Offline vineethgk

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ISRO to conduct tests for NISAR in Ahmedabad city sky
Quote
The flight test for the biggest collaboration project between ISRO and NASA — NISAR (NASA-ISRO Synthetic Aperture Radar) will be held over the city sky. The project involves building a 2,600 kg satellite to understand changes in the earth’s surface, icesheet collapses and natural calamities. Space Application Centre of ISRO has planned the flight testing late in March or early April to give scientists direction for the NISAR program that is scheduled to be launched in 2020.

The satellite is designed to observe and take measurements of some of the planet's most complex processes, including ecosystem disturbances, ice-sheet collapse, and natural hazards such as earthquakes, tsunamis, volcanoes and landslides. Regarding the testing that is being planned in a couple of weeks, SAC Director Tapan Misra said, “The flight testing will happen right above aapnu Amdavad. It will be at an altitude of 8 to 10 km above Ahmedabad till final planning of the NISAR program. We will read data from airborne station first which will help scientists prepare for the program.

The frequency and solutions will be same as real project but coverage area will be limited.” A 5 km radius of Ahmedabad city will be taken into account by the station for testing purpose. NISAR will reveal information about the evolution and state of the earth’s crust. The data will help scientists better understand our planet’s processes and changing climate. This will also help in hazard management. About their partnership with NASA, Misra said, “After we launched RISAT in April 2012, NASA evinced in-terest in developing a satellite jointly that can help observing earth in better way with new technology and that is when the journey started.”

RISAT facilitates cloud penetration and imaging even without sunlight. For the airborne test model, both L and S bands have been developed by ISRO. For the final mission, ISRO will design and develop the S-band SAR, Spacecraft Bus, data transmission system, spacecraft integration and testing, launch using heavy rocket geosynchronous satellite launch vehicle (GSLV) and on-orbit operations, while NASA will be responsible for design and development of L-band SAR, 12m unfurlable antenna and its deployment elements, global positioning system (GPS) and data recorder. The satellite will be able to measure earth crust movement minutely, up to millimetres.
« Last Edit: 03/09/2017 05:49 am by vineethgk »

Offline Danderman

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This should be an interesting object for amateur satellite observers, depending on its position relative to the terminator.

Which raises the issue of why a radar satellite would go into a sun-synch orbit.

Offline Steven Pietrobon

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Which raises the issue of why a radar satellite would go into a sun-synch orbit.

That's a good question. Its obviously not about having the same sun angle every day, since the illumination source is the satellite itself. If the crossing is at dawn and dusk, that would mean the satellite is in constant solar illumination and so would require smaller smaller solar arrays and batteries. SSO also means the revisit time is in multiple of days, instead of some odd time interval.
« Last Edit: 03/09/2017 09:04 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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This should be an interesting object for amateur satellite observers, depending on its position relative to the terminator.

Which raises the issue of why a radar satellite would go into a sun-synch orbit.
SAR usually go to SSO. Illumination is constant and thus you can get away with fixed solar panels, and thermal management is greatly simplified by having a hot side and a cold side.
Please remember that these satellites also have huge antennas that have to stay pointed to Earth.

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NISAR payload to undergo flight test today
Quote
Scientists working on one of the biggest collaborative projects undertaken by ISRO and NASA will take the project a step ahead today by kicking off the radar flight testing of NISAR (NASA-ISRO Synthetic Aperture Radar). A special aircraft landed at the city airport on Tuesday to carry the radars developed at the Space Application Centre’s (SAC) Ahmedabad facility for initial testing.
Quote
It should be noted that the SAC developed radar will be tested in Ahmedabad’s sky for three months. As per sources, the radar developed by SAC will be fixed on a Beechcraft Super King B 200 — owned by ISRO — for the first flight primarily to ‘understand weather and geographical conditions’ to continue testing further. NISAR mission is a dual frequency (L & S Band) Radar Imaging Satellite. Confirming the development, SAC Director Tapan Misra said, “We will test the radar by taking images from about 8km above sea level; the same area will be further studied by scientists from ground level to understand the radar’s accuracy level.
Quote
“The flying is essentially to understand how the radar sees the crops,” said Misra. The data collection and observation will also scientists time to analyse and simulate data from the radar. The mission is schedule for a launch in 2020.

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ISRO, NASA to collaborate on space-based sensors, radar systems

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India's space agency, ISRO, and NASA of the US are working on the development of advanced space-based sensors and radar systems that can help sharpen earth observation applications in the future, according to Tapan Misra, Director of the Ahmedabad-based Satellite Application Centre (SAC).

One of the focus areas of the joint venture called NISAR (NASA-ISRO Synthetic Aperture Radar) is making sensors in the L&S band. These can help in observations such as deformations in the land surface, details of the coastline and depths of the ocean, to aiding in disaster response.

Misra made these observations while delivering a lecture organised by the Aeronautical Society of India (ASI) and the Sensors Research Society of India here on Friday. The NISAR project agreement signed between the two agencies aims to launch an earth monitoring satellite by 2021.

Quote
The SAC will take the lead in the development of C-band radar imaging as well as in microwave and optical sensors, which have a big role to play in the future. The Indian Space Research Organisation is planning missions to gear itself to meet the growing demands for observational studies with multiple applications.

In the quest to connect the benefit of space-based observations to the advantage of the common man, SAC has conceived and launched a spectrum of optical and microwave payloads. In the last two decades, the optical observation capability has improved from 35 m to 60 cm. Sensor technology has changed from electrical transducers to integrated chips & is visible to microwaves," he said.

At present there are 13 operational Earth Observation (EO) satellites. SAC has built specific air-borne electro-optical sensors to meet the exclusive requirements of high resolution and hyper-spectral imaging from an aerial platform as well, Misra added.

--- [ --- ]

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Quote
Isro sources claim that the NISAR satellite will be launched, hopefully, by 2020-21. Misra said that joint testing of NISAR’s two radar systems — the S-Band developed by Isro and the L-band radar developed by the US — will be conducted soon and the two technologies will be integrated.
Source

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Former NASA administrator says that NASA-ISRO satellite is expected to be launched next year.

Quote
On a billion dollar Isro-Nasa joint project to co-develop an earth observation satellite with synthetic aperture radars (NISAR mission) whose launch is expected next year, Bolden, a former astronaut, said, "The satellite will be the first radar imaging satellite to use dual frequencies. Nasa will provide L-band synthetic aperture radar while Isro will provide an S-band synthetic aperture radar. India is providing a particular sensor and a wavelength which we (US) don't have. Therefore the joint collaboration."

Once launched, the NISAR satellite will help observe and take measurements of some of the planet's most complex processes, including ecosystem disturbances, ice-sheet collapse and natural hazards.

Source : Isro with Nasa's help can send astronauts to ISS: US space envoy

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Now launching in 2022.

https://www.spaceconnectonline.com.au/launch/4795-quad-discussions-facilitate-space-collaboration

"The NISAR spacecraft is expected to provide frequency across both L and S frequency bands, being the first satellite to achieve this. It is hoped that the mission will be launched in 2022, north of Chennai India."
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: GSLV Mk II - NISAR - 2022
« Reply #48 on: 03/18/2021 05:54 pm »
Very belated, pre-pandemic cross-post:
http://database.eohandbook.com/database/agencysummary.aspx?agencyID=11
Quote
Approved Missions timeline    
Mission                 Launch
CARTOSAT-3           Nov 2019   
OCEANSAT-3           Jan 2020
RISAT-1A                Mar 2020
GISAT                     Mar 2020
RESOURCESAT-3S   Jul 2020   
HRSAT                    Aug 2020
OCEANSAT-3           Oct 2020
RESOURCESAT-3SA Jan 2021
RESOURCESAT-3     Jan 2021
RESOURCESAT-3A   Jan 2022   
NISAR                    Jan 2022

Planned Missions timeline    
Mission                Launch
RISAT-1B               2020

Considered Missions timeline    
Mission                Launch   
SCATSAT-1A          2021
ATMSAT-1              2022
TRISHNA                2022
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Re: GSLV Mk II - NISAR - 2022
« Reply #49 on: 03/19/2021 03:19 am »
Updated list. NISAR now September 2022.

http://database.eohandbook.com/database/agencysummary.aspx?agencyID=11

Approved Missions
Jan 2021 RESOURCESAT-3
Jan 2021 GISAT
Mar 2021 RISAT-1A
Jun 2021 OCEANSAT-3
Aug 2021 HRSAT
Oct 2021 OCEANSAT-3A
Jan 2022 RESOURCESAT-3SA
Jan 2022 RESOURCESAT-3A
Jul 2022 RESOURCESAT-3S
Sep 2022 NISAR

Planned Missions
2022 RISAT-1B

Considered Missions
2022 ATMSAT-1
2022 TRISHNA
« Last Edit: 03/19/2021 03:24 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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Re: GSLV Mk II - NISAR - NET 2023
« Reply #52 on: 05/22/2022 07:34 pm »
https://starofmysore.com/mysuru-professor-selected-for-fellowship-to-work-at-nasa/

Quote
Mysuru: Dr. Abhishek A. Pathak, Assistant Professor, Department of Civil Engineering, The National Institute of Engineering (NIE), Mysuru, has been selected for the prestigious ‘SERB International Research Experience’ Fellowship to work at Hydrological Science Laboratory, Goddard Space Flight Centre, NASA, USA.

Quote
Dr. Pathak will work on synergetic assimilation of soil moisture and hydrometeorological variables to develop a comprehensive combined drought monitoring framework for India. The proposed research will also play a vital role in providing a base for various studies, which will be carried out with the up-coming NASA-ISRO SAR (NISAR) mission scheduled to be launched in 2023.

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Re: GSLV Mk II - NISAR - NET 2023
« Reply #53 on: 06/01/2022 10:10 pm »
https://timesofindia.indiatimes.com/world/rest-of-world/payload-integration-of-nasa-isro-synthetic-aperture-radar-mission-completed-in-us/articleshow/91944629.cms  [June 1]

Quote
Payload integration of NASA-Isro Synthetic Aperture Radar mission completed in US

BENGALURU: The payload integration of the NASA-Isro Synthetic Aperture Radar mission (NISAR) has been completed in the US and the same is expected to be shipped to India later this year for integration with the satellite and eventually the launch vehicle, senior NASA officials said here on Wednesday.

Quote
Thomas Zurbuchen, associate administrator, NASA science mission directorate on future Space exploration, terming it an extremely complex mission, said progress had been made on NISAR after Covid-induced delays.
“We’ve already met Isro scientific secretary and will be meeting the chairman later today (Wednesday) for discussions,” Zurbuchen said at a public event at the Indian Institute of Science (IISc). The main purpose of the NASA team’s visit is to deliberate on NISAR.

« Last Edit: 06/02/2022 01:27 am by zubenelgenubi »

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Re: GSLV Mk II - NISAR - 2023
« Reply #54 on: 06/24/2022 03:55 am »
List updated after February 14 RISAT-1A launch:
http://database.eohandbook.com/database/agencysummary.aspx?agencyID=11

Approved Missions

OCEANSAT-3              Mar 2022 (Aug/Sept as of this post)

RESOURCESAT-3S     Jul 2022 (NET 2023 as of this post)

RESOURCESAT-3SA  Jan 2023

HRSAT                         Aug 2023

NISAR                          Sep 2023

OCEANSAT-3A           Oct 2023

RESOURCESAT-3       Dec 2023

RESOURCESAT-3A    Jan 2024

TRISHNA                    Dec 2024

Planned Missions

RISAT-1B                     2023

Considered Missions

ATMSAT-1                   2025
« Last Edit: 06/24/2022 02:27 pm by zubenelgenubi »
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Re: GSLV Mk II - NISAR - 2023
« Reply #55 on: 06/24/2022 05:58 am »
NISAT                          Sep 2023

I believe that should be NISAR.
« Last Edit: 06/24/2022 05:59 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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Re: GSLV Mk II - NISAR - 2023
« Reply #56 on: 06/24/2022 01:21 pm »
 :o

List updated after February 14 RISAT-1A launch:
http://database.eohandbook.com/database/agencysummary.aspx?agencyID=11

Approved Missions

OCEANSAT-3              Mar 2022 (Aug/Sept as of this post)

RESOURCESAT-3S     Jul 2022 (NET 2023 as of this post)

etc...



 Nothing about SSLV-D1, GSLV Mark 2 with an IRNSS, or a GSLV Mark 3 commercial launch?

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Re: GSLV Mk II - NISAR - 2023
« Reply #57 on: 06/24/2022 02:30 pm »
:o

List updated after February 14 RISAT-1A launch:
http://database.eohandbook.com/database/agencysummary.aspx?agencyID=11

Approved Missions

OCEANSAT-3              Mar 2022 (Aug/Sept as of this post)

RESOURCESAT-3S     Jul 2022 (NET 2023 as of this post)

etc...



 Nothing about SSLV-D1, GSLV Mark 2 with an IRNSS, or a GSLV Mark 3 commercial launch?
List is for Indian Earth observing satellites only.

The SSLV D1 payload may not be included because it is experimental?
« Last Edit: 06/26/2022 08:27 pm by zubenelgenubi »
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Re: GSLV Mk II - NISAR - 2023
« Reply #58 on: 06/25/2022 08:27 pm »
NISAR seems to be pushed to 2024 [from "Joint IMD/ISRO updates since CGMS-50 and report on the medium to long-term future plans" presented at CGMS-50 plenary session (15-17 June 2022) (here)].
« Last Edit: 07/04/2022 09:51 pm by vyoma »

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Re: GSLV Mk II - NISAR - 2024
« Reply #61 on: 08/03/2022 04:59 pm »
The NASA-ISRO Synthetic Aperture Radar (NISAR) Mission – Technologies and Techniques for Earth Science
by Dr. Paul Rosen,
NASA/Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA

« Last Edit: 08/03/2022 05:00 pm by vyoma »

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Re: GSLV Mk II - NISAR - 2024
« Reply #62 on: 08/03/2022 04:59 pm »
Monitoring Earth’s Vital Signs with NISAR: Meet the Mission Engineers (Live Q&A)

Quote
A new NASA Earth science mission is currently being built and tested at the Jet Propulsion Laboratory. NISAR – or the NASA-ISRO Synthetic Aperture Radar – is an Earth-orbiting satellite that will collect critical data on how the planet is responding to climate change. But before it can begin its science, JPL engineers must design and build the unique technology that will set it apart, including the largest reflector antenna ever launched by NASA.

In this live Q&A, we’ll talk with two NISAR mission team members and answer your questions about what it takes to monitor Earth’s vital signs.

Guests:
Wendy Edelstein, payload manager, NASA JPL
Richa Sirohi, systems engineer, NASA JPL

« Last Edit: 08/03/2022 05:01 pm by vyoma »

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Re: GSLV Mk II - NISAR - 2024
« Reply #64 on: 08/12/2022 05:53 pm »
https://nisar.jpl.nasa.gov/mission/get-to-know-sar/sweepsar/

Quote
NISAR’s large deployable antenna will be used in a unique operating mode known as SweepSAR to provide wide area coverage and fine spatial resolution at the same time. When it transmits microwaves, the radar’s signal feed is stationary, producing a narrow beam of microwave energy. But when it receives the returning signal echoes, the radar feed sweeps its beam across the antenna’s reflector, thus giving SweepSAR its name.


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Re: GSLV Mk II - NISAR - 2024
« Reply #65 on: 08/12/2022 05:55 pm »
NASA-ISRO SAR (NISAR) Mission Science Users’ Handbook: https://nisar.jpl.nasa.gov/system/documents/files/26_NISAR_FINAL_9-6-19.pdf [2019]


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Re: GSLV Mk II - NISAR - 2024
« Reply #66 on: 08/12/2022 06:05 pm »
Pictures of NISAR spacecraft in stowed position. Getting ready to be sent to environmental test facility for vibration tests, thermovac tests etc. at NASA JPL. It'll be shipped to India in early 2023.
« Last Edit: 08/12/2022 06:11 pm by vyoma »

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Re: GSLV Mk II - NISAR - September 2023
« Reply #67 on: 12/02/2022 12:35 am »
Cross-post:
List of Indian Earth observing satellites with scheduled launch time period; the list appears to have been updated in October 2022:
http://database.eohandbook.com/database/agencysummary.aspx?agencyID=11

Approved Missions

OCEANSAT-3              Nov 2022 (launched Nov 26)

NISAR                          Sep 2023 (other sources say 2024)

TRISHNA                    Dec 2024

OCEANSAT-3A           Nov 2025

RESOURCESAT-3       Nov 2025

RESOURCESAT-3S     Jun 2026

Planned Missions

INSAT-3DS                  2023

RISAT-1B                     2023

RESOURCESAT-3A    2026

RESOURCESAT-3SA  2027

Considered Missions
none

HRSAT (was Aug 2023 launch) and ATMSAT-1 (was 2025 launch) are gone from the list.
« Last Edit: 12/02/2022 01:10 am by zubenelgenubi »
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Re: GSLV Mk II - NISAR - early 2024
« Reply #68 on: 02/04/2023 06:52 am »
twitter.com/nasajpl/status/1621688267585495040

Quote
Today was all about NISAR!

It’s nearly time for the scientific heart of this @NASAEarth satellite to head to southern India ahead of its planned 2024 launch, so of course, we had to send it off in true JPL style. https://go.nasa.gov/3Y8OQLd

https://twitter.com/nasajpl/status/1621688272396365825

Quote
NISAR, jointly built by @NASA and the Indian Space Research Organisation, will provide critical information on Earth’s crust, ice sheets, and ecosystems. Our collaboration with @isro exemplifies what’s possible when we tackle complex challenges together.

https://twitter.com/isrospaceflight/status/1621771183741100032

Quote
NASA has handed the NISAR spacecraft over to ISRO!
It will be launched in early 2024 on a GSLV (Mk-2) rocket into a Sun Synchronous Orbit.

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Re: GSLV Mk II - NISAR - early 2024
« Reply #69 on: 02/06/2023 01:13 pm »
https://twitter.com/nasa_lsp/status/1622597571041538049

Quote
🛰 Media got a close-up view of part of NISAR before it ships to India! NISAR (NASA-ISRO Synthetic Aperture Radar) will observe Earth’s land & ice-covered surfaces.

NASA is providing the L-band SAR and LSP has an advisory role in the 2024 launch! 🚀

nisar.jpl.nasa.gov

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Re: GSLV Mk II - NISAR - end of 2023
« Reply #70 on: 02/10/2023 03:52 am »
From the post launch speeches after the successful launch of SSLV D2:
Preparing GSLV Mk.III for 36 OneWeb satellites in middle of March. Commencing launch campaign immediately after today's launch for PSLV C55 for end of March on commercial mission. Using new facility. Preparing for landing demonstration of RLV in a few days time.

For Gaganyan have abort and recovery mission today, another abort and recovery mission and trying for uncrewed mission before end of year.

GSLV for NAVIC series satellite prior to NISAR, scheduled for end of this year. More PSLV missions as well.
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Re: GSLV Mk II - NISAR - end of 2023
« Reply #71 on: 02/22/2023 06:49 pm »
https://twitter.com/rpappalardo/status/1628450673414270976

Quote
Welcome, neighbor!
The NISAR Earth-observing radar mission temporarily shares High-Bay 1 @NASAJPL with @EuropaClipper, as NISAR is prepared for encapsulation and shipment to @ISRO India. #PI_Daily

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Re: GSLV Mk II - NISAR - end of 2023
« Reply #72 on: 03/08/2023 11:52 am »
Quote
Touchdown in Bengaluru! @ISRO receives NISAR (@NASA-ISRO Synthetic Aperture Radar) on a @USAirforce C-17 from @NASAJPL in California, setting the stage for final integration of the Earth observation satellite, a true symbol of #USIndia civil space collaboration. #USIndiaTogether

https://twitter.com/USAndChennai/status/1633395172041187329
Lukas C. H. • Hobbyist Mission Patch Artist 🎨 • May the force be with you my friend, Ad Astra Per Aspera ✨️

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Re: GSLV Mk II - NISAR - end of 2023
« Reply #73 on: 03/08/2023 08:26 pm »
twitter.com/nasajpl/status/1633558087712878595

Quote
NISAR is a big step closer to its 2024 launch. 🚀

After years of construction, integration, and testing at JPL, the mission's science payload was recently packed up and shipped to @ISRO in India. Go inside the packing process with Scott Nowak, NISAR mechanical integration lead.

https://twitter.com/nasajpl/status/1633558168268853250

Quote
NISAR, or the NASA-@ISRO Synthetic Aperture Radar, will observe a wide range of Earth processes – from the flow rates of glaciers to the dynamics of earthquakes and volcanoes. Now in India, teams will finish assembly and prepare the spacecraft for launch:

https://www.jpl.nasa.gov/news/nasa-isro-science-instruments-arrive-in-india-ahead-of-2024-launch

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Re: GSLV Mk II - NISAR - end of 2023
« Reply #74 on: 05/29/2023 06:01 am »
Cross-post:
ISRO Chairman wrapping up. Next GSLV launch is INSAT-3DS. Same rocket with NISAR. Coming months with PSLV, GSLV Mk.III, Gaganyan.
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Re: GSLV Mk II - NISAR - end of 2023
« Reply #75 on: 06/01/2023 11:17 pm »
https://www.deccanherald.com/science-and-environment/nisar-developed-by-nasa-and-isro-set-for-january-launch-1223935.html

Quote
The NASA Isro Synthetic Aperture Radar (NISAR), the low earth orbit observatory being jointly developed by NASA and Isro, is on course for a January 2024 launch from the Satish Dhawan Space Centre at Sriharikota.

Ana Maria Guerrero, NISAR system manager at NASA’s Jet Propulsion Laboratory in California, said the operations team was looking to complete the testing and set a “December-January time frame” for the launch.

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Re: GSLV Mk II - NISAR - end of 2023
« Reply #76 on: 06/14/2023 10:16 pm »
Launch date NET 29 Jan 2024.

« Last Edit: 06/15/2023 12:32 am by zubenelgenubi »

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Re: GSLV Mk II - NISAR - end of 2023
« Reply #77 on: 06/15/2023 12:35 am »
Launch date NET 29 Jan 2024.
From the interview: Eclipse season for NISAR's intended orbit ends January 29.  Launch likely to be in the following days or weeks.

Video posted June 10.
« Last Edit: 06/16/2023 01:42 am by zubenelgenubi »
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Re: GSLV Mk II - NISAR - NET 29 January 2024
« Reply #78 on: 07/13/2023 10:29 pm »
https://www.nasa.gov/feature/jpl/powerful-nasa-isro-earth-observing-satellite-coming-together-in-india [Jul 13, 2023]

Quote
Powerful NASA-ISRO Earth Observing Satellite Coming Together in India

Built on opposite sides of the planet, the NISAR satellite will deepen understanding of climate change, deforestation, glacier melt, volcanoes, earthquakes, and more.

Two major components of the NISAR satellite have been combined to create a single spacecraft in Bengaluru, India. Set to launch in early 2024, NISAR – short for NASA-ISRO Synthetic Aperture Radar – is being jointly developed by NASA and the Indian Space Research Organisation, or ISRO, to track movements of Earth’s land and ice surfaces in extremely fine detail. As NISAR monitors nearly every part of our planet at least once every 12 days, the satellite will also help scientists understand, among other observables, the dynamics of forests, wetlands, and agricultural lands.


About the size of an SUV and partially wrapped in gold-colored thermal blanketing, the satellite’s cylindrical radar instrument payload contains two radar systems. The S-band radar is particularly useful for monitoring crop structure and the roughness of land and ice surfaces, while the L-band instrument can penetrate denser forest canopies to study the woody trunks of trees, among other observables. The wavelengths of the S-band and L-band signals are about 4 inches (10 centimeters) and 10 inches (25 centimeters), respectively, and both sensors can see through clouds and collect data day and night.

The payload took a roundabout journey to get to this point. The S-band radar was built at the Space Applications Centre in Ahmedabad in western India, then flown in March 2021 to NASA’s Jet Propulsion Laboratory in Southern California, where engineers had been developing NISAR’s L-band radar. At JPL, the two systems were fixed to the payload’s barrel-like frame before being flown to the U R Rao Satellite Centre (URSC) in the southern Indian city of Bengaluru in March 2023.

In the meantime, engineers and technicians at URSC, collaborating with teams from JPL, were busy developing the spacecraft’s main body, or bus, which is covered in blue blanketing that protects it during assembly and testing prior to launch. The bus, which includes components and systems developed by both ISRO and JPL, will provide power, navigation, pointing control, and communications for the mission.

Since the radar payload and bus were joined in a URSC clean room in mid-June, NASA and ISRO teams have been working together to route thousands of feet of cabling between them. Still to be attached: the satellite’s solar panels, as well as the drum-shaped, wire-mesh reflector that will unfold from the end of a 30-foot (9-meter) boom. At nearly 40 feet (12 meters) in diameter, the reflector will be largest radar antenna of its kind ever launched into space.

The NISAR satellite is currently undergoing performance testing, to be followed by several rounds of environmental testing to ensure it can withstand the rigors of launch and meet all of its operational requirements once in orbit. Then it will be transported about 220 miles (350 kilometers) eastward to Satish Dhawan Space Centre, where it will be inserted into its launch fairing, mounted atop ISRO’s Geosynchronous Satellite Launch Vehicle Mark II rocket, and sent into low Earth orbit.


More About the Mission

NISAR is an equal collaboration between NASA and ISRO and marks the first time the two agencies have cooperated on hardware development for an Earth-observing mission. JPL, which is managed for NASA by Caltech in Pasadena, leads the U.S. component of the project and is providing the mission’s L-band SAR. NASA is also providing the radar reflector antenna, the deployable boom, a high-rate communication subsystem for science data, GPS receivers, a solid-state recorder, and payload data subsystem. URSC, which is leading the ISRO component of the mission, is providing the spacecraft bus, the S-band SAR electronics, the launch vehicle, and associated launch services and satellite mission operations.


Offline zubenelgenubi

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Re: GSLV Mk II - NISAR - NET 29 January 2024
« Reply #79 on: 07/13/2023 11:18 pm »
Any brightness estimates yet for satellite observers?
Quote
Still to be attached:...as well as the drum-shaped, wire-mesh reflector that will unfold from the end of a 30-foot (9-meter) boom. At nearly 40 feet (12 meters) in diameter, the reflector will be largest radar antenna of its kind ever launched into space.
« Last Edit: 07/13/2023 11:18 pm by zubenelgenubi »
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Re: GSLV Mk II - NISAR - NET 29 January 2024
« Reply #80 on: 07/14/2023 05:43 am »
https://twitter.com/nasajpl/status/1679615984720805888

Quote
A powerful Earth-observing satellite is coming together!

The @NASA-@ISRO NISAR mission is currently in assembly and testing in Bengaluru, India. Set for launch in 2024, NISAR will study Earth's changing land and ice surfaces. go.nasa.gov/43q7Re1

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Re: GSLV Mk II - NISAR - NET 29 January 2024
« Reply #81 on: 07/28/2023 04:16 pm »

Quote
SRO announces NISAR Utilization Programme,  a chance to access & analyze data from the 🇺🇸🇮🇳NASA–ISRO Synthetic Aperture Radar (NISAR) satellite mission.

NISAR offers high-resolution imaging & aims to study Earth's ecosystems, cryosphere, solid earth science, and coastal ocean processes to address global environmental changes & natural hazards. 🛰️🌿https://isro.gov.in/NISARSatellite.html

Indian researchers can submit project proposals on diverse applications like agriculture, forestry, disaster management & more using NISAR's L & S-band SAR data, by Oct 31, 2023.

Funding support is available for selected projects.

https://twitter.com/isro/status/1684781939612659712

https://www.sac.gov.in/data/Event/524/NISAR_Utilization_Programme_Jul_2023.pdf

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Re: GSLV Mk II - NISAR - NET 29 January 2024
« Reply #82 on: 11/14/2023 09:32 pm »
https://twitter.com/nasajpl/status/1724527001250517193

Quote
Before #NISAR begins its Earth-observing mission, the spacecraft must prove it can withstand the harsh environment of space.

At an @ISRO facility in India, NISAR underwent 3 weeks of intensive thermal vacuum testing – and met all of its requirements! ✅

https://www.jpl.nasa.gov/news/trailblazing-new-earth-satellite-put-to-test-in-preparation-for-launch

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Re: GSLV Mk II - NISAR - NET 29 January 2024
« Reply #83 on: 12/02/2023 09:19 am »

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Re: GSLV Mk II - NISAR - NET 29 January 2024
« Reply #84 on: 12/11/2023 02:51 am »


Meaningless video just rehashing information one can find on Wikipedia. Lazy journalism at it's finest.

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Re: GSLV Mk II - NISAR - NET 29 January 2024
« Reply #85 on: 12/22/2023 01:59 pm »
NET Late-February / Early-March:

Quote
Three launches in Q1: ISRO's upcoming missions in 2024
Hindustan Times Dec 22, 2023

[...]

Officials also said the Nasa-Isro Synthetic Aperture Radar mission (NISAR) — India’s collaborative mission with the US space agency — is also expected to take flight in the first quarter of next year, possibly around late February or early March.

[...]
« Last Edit: 12/22/2023 09:10 pm by zubenelgenubi »
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Re: GSLV Mk II - NISAR - late February/early March 2024
« Reply #86 on: 01/01/2024 02:27 pm »
Scheduled for March 30th:

Quote
India launches X-ray astronomy satellite
January 1, 2024

[...]

ISRO expects to roughly double that launch rate in 2024, with 12 to 14 launches planned for the year. Among them will be the GSLV launch of the NASA-ISRO Synthetic Aperture Radar (NISAR) Earth science mission, a joint effort of the two space agencies. That mission is slated for launch on March 30, NASA officials said at a session of the Fall Meeting of the American Geophysical Union in December.

[...]

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Re: GSLV Mk II - NISAR - NET 30 March 2024
« Reply #87 on: 01/01/2024 03:33 pm »
Cross-post:
Per NOTAM below, launch NET January 10, 11:30 - 15:30 UTC:
Quote
E) GSLV-F14 ROCKET LAUNCH FM SHAR RANGE,SRIHARIKOTA WILL TAKE <snip>
Confirms this will be F14, which leaves F13 skipped (possibly NISAR?)
Highly likely F13 will be skipped over. ISRO has a history of skipping over the number "13" in it's mission numbering. PSLV-C13 and GSAT-13 were both skipped over in this way. NISAR mission should be F15.
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Re: GSLV Mk II - NISAR - NET 30 March 2024
« Reply #88 on: 02/17/2024 07:56 pm »
Confirmed today by ISRO chairman in post launch speeches of GSLV F14 that this will be on the next GSLV launch sometime in June - September timeframe.
« Last Edit: 02/17/2024 07:57 pm by K210 »

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Re: GSLV Mk II - NISAR - NET 30 March 2024
« Reply #89 on: 02/18/2024 12:28 am »
So delayed 3 months or more? What launches can be expected between now and June?

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Re: GSLV Mk II - NISAR - NET 30 March 2024
« Reply #90 on: 02/18/2024 02:03 am »
I think it is a big mistake for NASA to trust ISRO to launch this payload on their dodgy underperforming "GSLV" rocket. There is still time to switch to a LVM3 or launch on a higher quality American launcher like the Falcon-9 or Atlas-V. At a development cost of $2 billion+ and 10 years in the making a launch failure would be the worst kind of failure for the NISAR program.
« Last Edit: 02/18/2024 02:03 am by Angry_cat »

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Re: GSLV Mk II - NISAR - NET 30 March 2024
« Reply #91 on: 02/18/2024 02:28 am »
I think it is a big mistake for NASA to trust ISRO to launch this payload on their dodgy underperforming "GSLV" rocket. There is still time to switch to a LVM3 or launch on a higher quality American launcher like the Falcon-9 or Atlas-V. At a development cost of $2 billion+ and 10 years in the making a launch failure would be the worst kind of failure for the NISAR program.
Atlas V is retiring, and all 17 remaining Atlas V have already been allocated. A payload cannot be shifted to a new LV instantly. It takes time. For example When OneWeb lost access to Soyuz they announced a switch to Falcon 9 in March 2022, but the first Falcon 9 launch was in December 2022.

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Re: GSLV Mk II - NISAR - NET 30 March 2024
« Reply #92 on: 02/18/2024 10:13 am »
I think it is a big mistake for NASA to trust ISRO to launch this payload on their dodgy underperforming "GSLV" rocket. There is still time to switch to a LVM3 or launch on a higher quality American launcher like the Falcon-9 or Atlas-V. At a development cost of $2 billion+ and 10 years in the making a launch failure would be the worst kind of failure for the NISAR program.

Quote
NISAR is an equal collaboration between NASA and ISRO and marks the first time the two agencies have cooperated on hardware development for an Earth-observing mission. JPL, which is managed for NASA by Caltech in Pasadena, leads the U.S. component of the project and is providing the mission’s L-band SAR. NASA is also providing the radar reflector antenna, the deployable boom, a high-rate communication subsystem for science data, GPS receivers, a solid-state recorder, and payload data subsystem. URSC, which is leading the ISRO component of the mission, is providing the spacecraft bus, the S-band SAR electronics, the launch vehicle, and associated launch services and satellite mission operations.

As the launch of the joint NASA-ISRO mission is ISRO's responsibility, it would be ISRO's choice to change the launch vehicle.

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Re: GSLV Mk II - NISAR - NET 30 March 2024
« Reply #93 on: 02/21/2024 11:39 am »
I think it is a big mistake for NASA to trust ISRO to launch this payload on their dodgy underperforming "GSLV" rocket. There is still time to switch to a LVM3 or launch on a higher quality American launcher like the Falcon-9 or Atlas-V. At a development cost of $2 billion+ and 10 years in the making a launch failure would be the worst kind of failure for the NISAR program.

GSLV was selected as the launch vehicle for NISAR back in 2014. This was before the LVM3 even had it's very first suborbital test launch. Back then the GSLV was the most capable rocket that ISRO had in it's arsenal.

I will agree with you that GSLV is a bit of a underperforming launch vehicle but it is not fair to call it "dodgy" when the current Mk2 variant that is operational has a success rate of 8/10 or 80%. I am confident GSLV will inject the NISAR into it's intended orbit despite whatever reliability issues it had in the past.

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Re: GSLV Mk II - NISAR - NET Q2 2024
« Reply #94 on: 02/28/2024 02:28 pm »
^^^

Nice! When can we realistically expect NISAR to be launched? Is the March 30th date still good. It was referred to not long back by NASA itself

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Re: GSLV Mk II - NISAR - NET Q2 2024
« Reply #95 on: 03/21/2024 10:46 am »
NET Late-May:

Quote
NISAR Launch Delayed to Late May for Further Testing
21.03.2024

The joint NASA-ISRO mission to launch the groundbreaking NISAR (NASA-ISRO Synthetic Aperture Radar) satellite faces a delay, with the launch window pushed to late May 2024.

While the Indian Space Research Organisation (ISRO) has confirmed the designated Geosynchronous Satellite Launch Vehicle (GSLV) will be ready by March-April, the complex radar instrument's final testing and integration into the satellite require additional time.

Prioritizing Pre-Launch Accuracy​
The delay prioritizes comprehensive testing to ensure flawless functionality of NISAR's instruments before launch.

[...]
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Re: GSLV Mk II F15? - NISAR - SLP - NET late May 2024
« Reply #96 on: 04/03/2024 12:59 am »
Another piece of circumstantial evidence that the launch vehicle will be F15; cross-post; document attached to the original post:
IN-SPACe launch manifesto has been released:

Quote
Q4 FY 2023-24: (1 January 2024 - 30 March 2024)
- PSLV C58 / ISRO Payload XPoSat + POEM-3 with 9 payloads
- GSLV F14 / ISRO Payload Insat-3DS
- AGNIBAAN-SORTeD (Suborbital mission)
- SSLV D3 / ISRO Primary Payload, Space Rickshaw & IITMSat

FY 2024-25 Commercial Missions:
Q1: (1 April 2024 - 30 June 2024)
- PSLV C59 / NSIL Primary Payload, SCOT, CGUSAT, LEAP-1

- VIKRAM-1: TBD

Q2: (1 July 2024 - 30 September 2024)
- LVM3 M5 / NSIL Payload

- VIKRAM-1: TBD

Q3: (1 October 2024 - 31 December 2024)
- PSLV C62 / PROBA-3
- PSLV N1 / TDS-01
- SSLV S1 / TBD, PARIKSHIT

- VIKRAM-1: TBD
- AGNIBAAN: TBD

Q4: (1 January 2025 - 30 March 2025)
- PSLV N2 / TBD, Aadyah, DRISHTI, Sanskardhaam, DS P30
- SSLV S2 / TBD, Azista60°

- VIKRAM-1: TBD
- AGNIBAAN: TBD

FY 2024-25 ISRO/User-funded Missions: (No specific quarters given)
- PSLV C60 / ISRO Payload + POEM-4
- GSLV F15 / ISRO Payload
- PSLV C61 / ISRO Payload
- GSLV F16 / ISRO Payload
- PSLV C63 / ISRO Payloads
- GSLV F17 / ISRO Payload

Note:
[...]
- In addition, seven test launches pertaining to Gaganyaan are also scheduled during the period.
[...]
« Last Edit: 04/03/2024 01:02 am by zubenelgenubi »
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