Author Topic: GSAT-7A - GSLV F11 - December 19, 2018 (10:40 UTC)  (Read 20000 times)

Offline K210

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According to local media isro has another GSLV launch planned this year that will orbit GSAT-7A. The mission number will probably be F10 or F11. GSAT-7A is a 2.65 ton geostationary satellite that will serve the indian military. 

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According to news agency PTI, ISRO Chairman K Sivan has confirmed the launch of the GSAT-7A mission this year. "We have another GSLV mission, which is going to have GSAT-7A," he said.

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The GSAT-7A satellite is an advanced military communications satellite. It will be dedicated for the sole use of the Indian Air Force. It is similar to the GSAT-7 which is currently being used exclusively by the Indian Navy. The Navy's GSAT-7 is a multi-band communication spacecraft, which has been operational since September 2013. The GSAT-7 satellite helps enable the Indian Navy to extend its blue water capabilities and stop relying on foreign satellites like Inmarsat, which provide communication services to its ships. Similarly, the GSAT-7A satellite will help the Indian Air Force spread its wings further.

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GSAT-7A will enable the Indian Air Force to interlink different ground radar stations, ground airbase and Airborne early warning and control (AWACS) aircraft. The GSAT-7A satellite will enhance the Indian Air Force's network-centric warfare capabilities and enhance its global operations.

Source: https://www.ndtv.com/india-news/isro-missions-2018-12-launches-12-months-isros-mega-plan-for-2018-revealed-details-here-1838144
« Last Edit: 12/18/2018 12:33 pm by input~2 »

Online Steven Pietrobon

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Re: GSLV F1*/GSAT-7A launch thread
« Reply #1 on: 04/19/2018 05:16 am »
According to local media isro has another GSLV launch planned this year that will orbit GSAT-7A. The mission number will probably be F10 or F11. GSAT-7A is a 2.65 ton geostationary satellite that will serve the indian military.

The NSF launch schedule shows this as F12.
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Offline vineethgk

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Re: GSLV F1*/GSAT-7A - 2018-H2
« Reply #2 on: 04/22/2018 11:44 pm »
GSAT-7A targeted for September on GSLV MkII
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Isro will launch a dedicated satellite, Gsat-7A, for the Indian Air Force (IAF) in September and an advanced remote sensing satellite, Risat-2A, for surveillance purpose by the end of the year.

Gsat-7A, which will be lifted by a GSLV Mk II rocket, will enable the IAF to interlink different ground radar stations, airbases and AWACS aircraft. It will also boost the IAF’s network-centric warfare capabilities and enhance its global operations.
Source

Online Steven Pietrobon

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Re: GSAT-7A - GSLV - September 2018
« Reply #3 on: 04/23/2018 11:03 pm »
Well, this article is saying GSAT 7A is being launched by Arianespace!

http://www.timesnownews.com/technology-science/article/isro-s-2018-missions-from-chandrayaan-2-to-gsat-11-and-more-planned-missions-this-year/217980

"While the GSAT-7A is expected to be launched on board the Ariane 5 rocket from Kourou, French Guiana in the second half of 2018,..."
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline input~2

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Re: GSAT-7A - GSLV - September 2018
« Reply #4 on: 04/24/2018 06:10 am »
Well, this article is saying GSAT 7A is being launched by Arianespace!

http://www.timesnownews.com/technology-science/article/isro-s-2018-missions-from-chandrayaan-2-to-gsat-11-and-more-planned-missions-this-year/217980

"While the GSAT-7A is expected to be launched on board the Ariane 5 rocket from Kourou, French Guiana in the second half of 2018,..."

and here.. by GSLV
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The GSAT-7A communication satellite will be launched for the Indian Air Force from the Satish Dhawan Space Centre in Sriharikota, Andhra Pradesh in September.

The GSAT-7A will be carried by the GSLV Mk II rocket and the satellite will help the IAF interlink their bases, ground radar stations and the AWACS aircraft. Not just that, this will also improve the force's global operations.

source: https://www.ibtimes.co.in/chandrayaan-2-gsat-7a-isro-set-busy-launch-season-767511 

Offline K210

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Re: GSAT-7A - GSLV - September 2018
« Reply #5 on: 04/24/2018 02:15 pm »
Well, this article is saying GSAT 7A is being launched by Arianespace!

http://www.timesnownews.com/technology-science/article/isro-s-2018-missions-from-chandrayaan-2-to-gsat-11-and-more-planned-missions-this-year/217980

"While the GSAT-7A is expected to be launched on board the Ariane 5 rocket from Kourou, French Guiana in the second half of 2018,..."

Probably a typo. GSAT-11 will be launched via Ariane-V. GSAT-7A mass is well within the payload capacity of GSLV so it makes no sense to go for a foreign launcher.

Offline vineethgk

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Re: GSAT-7A - GSLV - September 2018
« Reply #6 on: 04/24/2018 02:22 pm »
Well, this article is saying GSAT 7A is being launched by Arianespace!

http://www.timesnownews.com/technology-science/article/isro-s-2018-missions-from-chandrayaan-2-to-gsat-11-and-more-planned-missions-this-year/217980

"While the GSAT-7A is expected to be launched on board the Ariane 5 rocket from Kourou, French Guiana in the second half of 2018,..."
The article in fact says both, essentially contradicting itself! ;)

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"We have another GSLV mission, which is going to have GSAT-7A," K Sivan once confirmed ....
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While the GSAT-7A is expected to be launched on board the Ariane 5 rocket from Kourou, French Guiana in the second half of 2018 ...

Offline zubenelgenubi

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Re: GSAT-7A - GSLV - September 2018
« Reply #7 on: 04/24/2018 06:54 pm »
Interesting to see that poor editing is not only a phenomenon in USA news sources.  :-[

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Offline K210

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Re: GSAT-7A - GSLV - September 2018
« Reply #8 on: 05/24/2018 08:27 pm »

Offline input~2

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Re: GSAT-7A - GSLV - September 2018
« Reply #9 on: 07/23/2018 04:19 pm »
This mission is now planned for November 2018

Offline input~2

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Re: GSAT-7A - GSLV - 2019
« Reply #10 on: 08/18/2018 07:21 am »
According to SHAR director, this mission seems to have been delayed to 2019

Offline worldtimedate

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Re: GSAT-7A - GSLV - 2019
« Reply #11 on: 08/30/2018 09:40 pm »
In November this year, GSAT-7A will be launched by GSLV-F11which will be powered by the upgraded upper stage cryogenic engine which will have 13% uprated thrust.

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The Indian Space Research Organization (Isro), on Thursday said it has successfully completed the hot test of cryogenic engine for the GSLV-F11, which is scheduled to launch the GSAT-7A in November this year.

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The test, conducted at the Isro Propulsion Complex in Mahendragiri on August 27, was carried out for 200 seconds during which the engine operated in the nominal and 13% uprated thrust regimes.

Source :
GSLV-F11 cryo-engine hot test successful

Offline worldtimedate

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Re: GSAT-7A - GSLV - 2019
« Reply #12 on: 09/02/2018 10:47 pm »
The following news report confirms the launch of GSAT-7A in November, this year. Does anyone know the launch mass of GSAT-7A ? GSLV-II is now capable of launching 2.8 ton payload to GTO.

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In November too, Isro will launch two satellites. GSLV F11 will launch GSAT-7A, a satellite dedicated for the IAF, which will help the force interlink their bases, ground radar stations and AWACS aircraft.

Source : Isro to launch 19 missions in just 7 months

Offline K210

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Re: GSAT-7A - GSLV F11 - SLP - December 14th 2018
« Reply #13 on: 11/07/2018 09:44 pm »
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Isro will fly a GSLV Mk II with a communication satellite GSAT-7A weighing 2.2 tonne on December 14, said VSSC director S Somanath.

Launch date is now set for December 14th from second launch pad

Source: https://timesofindia.indiatimes.com/city/kochi/isro-lines-up-3-rocket-launches-in-two-months/articleshow/66538316.cms
« Last Edit: 11/14/2018 05:46 am by K210 »

Offline TheVarun

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Re: GSAT-7A - GSLV F11 - SLP - December 14th 2018
« Reply #14 on: 11/08/2018 07:11 pm »
^
Very good news!  And if they keep to this schedule, it would mean that there would be 3 missions in one month. Not bad at all!

Offline K210

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Re: GSAT-7A - GSLV F11 - SLP - 14th December 2018
« Reply #15 on: 11/29/2018 06:25 am »
In one of the C43 post launch speeches today (November 29th) it is mentioned launch date for F11 mission is 20 days away. That would put this mission at no earlier than December 19th.

Offline K210

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Re: GSAT-7A - GSLV F11 - SLP - NET December 19th 2018
« Reply #16 on: 12/04/2018 12:20 am »
According to regional media GSAT-7A has reached SHAR on December 2nd. Launch is being targeted for December 19th.

Source: http://www.andhrabhoomi.net/content/state-andhra-pradesh-440 (In Telugu)

Offline worldtimedate

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Re: GSAT-7A - GSLV F11 - SLP - NET December 19th 2018
« Reply #17 on: 12/09/2018 11:56 pm »
Without specifying a date, ISRO chairman has said that GSAT-7A - exclusively to be used by the Indian Air Force - is scheduled to be launched in the third week of December, thus bringing to an end the ISRO's satellite launch mission of 2018 that in the middle part of the year remained lull for five months but that dormant period was compensated for with hurriedly but successfully launched satellites from September onwards.

What is really disappointing is that GSAT 7A will weigh 2.2 ton instead of 2.5 to 2.6 ton that was being expected after the High Thrust Vikas Engine having been successfully qualified, tested and flown in the successful GSLV MK-III D2 mission.

Isro to launch dedicated satellite for IAF in 3rd week of December

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Talking to TOI, Isro chairman K Sivan said, "Isro will launch a communication satellite Gsat-7A dedicated for the IAF in the third week of this month. Once Isro places Gsat-7A in the geo stationary orbit, the communication satellite will enable the IAF to interlink different ground radar stations, airbases and AWACS aircraft. It will boost the air force's network-centric warfare capabilities and enhance its global operations.

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Costing around Rs 500-800 crore, Gsat-7A will have a lifetime of nine years. It will have Ku-band transponders and two deployable solar arrays. The satellite weighing 2.2 tonnes will be launched by GSLV Mk II. Gsat-7A will be the second satellite dedicated to the military. The IAF is also likely to get another satellite Gsat-7C, within a few years that will boost its network-centric operations.
« Last Edit: 12/10/2018 06:52 am by worldtimedate »

Offline PonRam

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Re: GSAT-7A - GSLV F11 - SLP - NET December 19th 2018
« Reply #18 on: 12/10/2018 05:50 am »
Lifetime seems to be a funny 9 years instead of the normal 10 years. They could have loaded additional propellant to increase lifetime and test out the HT Vikas engine as well. Why are they always shy of doing these things?

Offline ZachS09

Re: GSAT-7A - GSLV F11 - SLP - NET December 19th 2018
« Reply #19 on: 12/10/2018 03:07 pm »
Lifetime seems to be a funny 9 years instead of the normal 10 years. They could have loaded additional propellant to increase lifetime and test out the HT Vikas engine as well. Why are they always shy of doing these things?

Maybe ISRO is having doubts about the new engine, thinking it could fail at any time during the ascent.

I don't blame them for putting it off until they feel confident enough.
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