Indian Space Program Discussion

All threads that are locked or marked for deletion will be moved to this forum. The topics will be cleared from this archive on the 1st and 16th of each month.
Post Reply
shyamd
BRF Oldie
Posts: 7100
Joined: 08 Aug 2006 18:43

Re: Indian Space Program Discussion

Post by shyamd »

Well done to all involved!

India puts an Israeli all-weather spy satellite in orbit Monday
DEBKAfile's military sources report that India rushed through its order for the Israeli Aerospace Industries all-weather, 24-hour surveillance TecSAR after 10 gunmen murdered 165 people in Mumbai last November, including five Israelis.

The Israeli satellite is considered one of the most advanced in the market, capable of seeing through clouds and carrying out day-and-night all-weather imaging. It is the first time an acquisition of this nature has gone through within five months of ordering.

The ten gunmen, members of Lashkar-e-Taibe, an operational branch of al Qaeda, landed in Mumbai from the Pakistani port of Karachi after seizing an Indian vessel on the Arabian Sea. Their undetected landing showed New Delhi that even after spending vast sums to make its armed forces one of the finest in the world, a big hole remains in its defenses against terrorists: an all-seeing satellite that could penetrate low visibility weather conditions, especially in the monsoon months during which Indian satellites are blind.

Our counter-terror sources note that al Qaeda tacticians made good use of this weakness last November, once again demonstrating their superior intelligence capabilities and detailed forward planning. Our experts estimate that the Mumbai massacre was nearly two years in the planning.

After it was over, India's military chiefs warned the government that the country was wide open to more such terrorist attacks as well as ballistic missile strikes in the absence of high-quality, all-weather spy satellites.

Dubbed RISAT 2, the 300-kilogram was launched by the Polar Satellite Launch Vehicle rocket from the Sriharikota launch site 90 kilometers north of the southern city of Chennai. A scientist from India's Space Research Organization told AFP that it had been placed in orbit 20 minutes after lift-off early Monday, April 20.

The launching of the first Israeli satellite by an Indian rocket took place in January 2008.
harbans
BRF Oldie
Posts: 4883
Joined: 29 Sep 2007 05:01
Location: Dehradun

Re: Indian Space Program Discussion

Post by harbans »

Mr Nair should'nt really be that explicit about some of these problems. Others don't reveal one bit what glitches they face in what is undoubtedly a complex task. Gushing it all at a go during press conferences is not exactly good PR. I've been in ops and know there are myriad things that can go slightly awry, but there are processes and backups in place to circumvent such. No need for it being in the public domain. The domain that needs to uinderstand and work on it is ISRO alone.
disha
BR Mainsite Crew
Posts: 8423
Joined: 03 Dec 2006 04:17
Location: gaganaviharin

Re: Indian Space Program Discussion

Post by disha »

harbans wrote:Mr Nair should'nt really be that explicit about some of these problems. Others don't reveal one bit what glitches they face in what is undoubtedly a complex task. Gushing it all at a go during press conferences is not exactly good PR. I've been in ops and know there are myriad things that can go slightly awry, but there are processes and backups in place to circumvent such. No need for it being in the public domain. The domain that needs to uinderstand and work on it is ISRO alone.
You may have a point, but then DDM is always looking for something going wrong angle and were thrown a bone and maybe Mr. Nair wanted to highlight the hardwork put in by ISRO.

Several in DDM itself cannot believe that ISRO is pulling this through successfully. They are what I call basket cases where they will agree that all the launches are photoshop'ed in a heartbeat!

GO ISRO!!! Congratulations!
disha
BR Mainsite Crew
Posts: 8423
Joined: 03 Dec 2006 04:17
Location: gaganaviharin

Re: Indian Space Program Discussion

Post by disha »

krishnan wrote:Someone took those pictures manually?
Main Information
Make : NIKON CORPORATION
Model : NIKON D3
Not necessarily, they can be remote triggered. There is a substantial improvement in the quality of the photos coming from ISRO, now you know why.

Next step, some large format, high speed video of launches. It will be cool to see GSLV/PSLV launch in IMAX 8)
Vipul
BRF Oldie
Posts: 3727
Joined: 15 Jan 2005 03:30

Re: Indian Space Program Discussion

Post by Vipul »

More Info.

The other remote sensing satellites slated for launch are Oceansat-2, Radar Imaging Satellite, Resourcesat-2.

"Oceansat-2 is expected to be launched this June or July using PSLV. Piggy-backing will be a Swiss-owned micro satellite. Following that will be the launch of GSAT with Geo Synchronous Launch Vehicle (GSLV) that will be fitted with indigenous cryogenic engine," S. Sathish, director (publications and public relations) at ISRO, told IANS.

He said the year-end will see the launch of remote sensing satellite Resourcesat and communications satellite INSAT 3D.

The micro education satellite Anusat, built by Anna University and having a life span of one year, will carry out drought and wasteland monitoring, urban planning and other studies.

"Anusat is expected to prod other Indian universities to built satellites and focus on space technologies," Satish added.

One of the notable aspects of the rocket that went up is its avionics built by ISRO. It also weighs less than earlier systems.

The Indian space agency first tested its new avionics system called Advanced Avionics Module (AAM) on board PSLV that was launched in April 2007 with two equipment bays.

The first bay had ISRO's regular navigation system while the second one had the 185-kg AAM.

Satisfied with the test flight results, the Indian space agency initially thought of inducting the indigenous system into operation first in its bigger rocket GSLV and later in PSLV.However, the scheme of deployment has been reversed now.

"The ISRO developed microprocessor Vikram is faster than what is being used till date," said Satish.
disha
BR Mainsite Crew
Posts: 8423
Joined: 03 Dec 2006 04:17
Location: gaganaviharin

Re: Indian Space Program Discussion

Post by disha »

SSridhar wrote:
A Deshmukh wrote: I see a lot of debris. Is that normal?
I was expecting this question.
:rotfl:

New word for BR lexicon - "Frangible Confidence" (tm)

Frangible Confidence - Confidence of desis in their own created desi technology.

For eg.

PSLV is not as efficient to some random Long March rocket, chalk it down to Frangible Confidence (FC)
How come we are ahead in Remote Sensing technology, we cannot be. Chalk it down again to Frangible Confidence (FC)

I can apply the above two words in almost all of the forums here!
SwamyG
BRF Oldie
Posts: 16271
Joined: 11 Apr 2007 09:22

Re: Indian Space Program Discussion

Post by SwamyG »

Congratulations to ISRO and all of us :-)
p_saggu
BRFite
Posts: 1055
Joined: 26 Nov 2004 20:03

Re: Indian Space Program Discussion

Post by p_saggu »

Congratulations to ISRO.
Happy photographing :wink:
hnair
Forum Moderator
Posts: 4654
Joined: 03 May 2006 01:31
Location: Trivandrum

Re: Indian Space Program Discussion

Post by hnair »

harbans wrote:Mr Nair should'nt really be that explicit about some of these problems. Others don't reveal one bit what glitches they face in what is undoubtedly a complex task. Gushing it all at a go during press conferences is not exactly good PR. I've been in ops and know there are myriad things that can go slightly awry, but there are processes and backups in place to circumvent such. No need for it being in the public domain. The domain that needs to uinderstand and work on it is ISRO alone.
Chankian says "Good PR == being honest about small issues that you had already fixed and forgetting to mention big SNAFUS that still need a fix". If ISRO dont feed DDM with these issues, we will start looking like "Long March was launched successfully on Feb15, 1996. In related news, eviction notices were served to those behind on rent at a mountain village near Xichang".
Jamal K. Malik
BRFite
Posts: 637
Joined: 27 Mar 2009 23:03

Re: Indian Space Program Discussion

Post by Jamal K. Malik »

Regarding - RISAT II
1) Satellite become Israeli, not Indian
2) It also become a spy satellite
we can do better if we conceal the fact!!
Is it election effect????
Last edited by Jamal K. Malik on 21 Apr 2009 15:34, edited 1 time in total.
AdityaM
BRF Oldie
Posts: 2063
Joined: 30 Sep 2002 11:31
Location: New Delhi

Re: Indian Space Program Discussion

Post by AdityaM »

Jamal K. Malik wrote:[quote="AdityaM"]Why is the Spy sat & its launch such a big news.
Shouldn't somethings be learnt of only 5 years after their existence ?

Now that the world knows what the Sat does & about its orbit, what stops people from pulling on us what we pulled on the americans sat. in pokhran...timing the activity to hide the subterfuge while the sat is hovering over? Or will this always be hovering over, making any activity visible anytime of the day ?

has the above already been discussed to death here?

It is great to have a spy sat. in sky.Every opration need a information and we will have that info on table.We can have a functional aerospace command now, to use these sat[/quote]
I was talking of maintaining secrecy about the launch, & not why we need it.
Gaur
Forum Moderator
Posts: 2009
Joined: 01 Feb 2009 23:19

Re: Indian Space Program Discussion

Post by Gaur »

^^ What secrecy? Its "made in israel" satellite. How could you keep it a secret?
Rahul M
Forum Moderator
Posts: 17167
Joined: 17 Aug 2005 21:09
Location: Skies over BRFATA
Contact:

Re: Indian Space Program Discussion

Post by Rahul M »

Jamal K. Malik wrote:It is poor PR regarding this RISAT2.
1) This sat become Israli.
2) It become spy.
we can do better if we conceal the fact!!
Is it election effect????
jamal, could you pay a little more attention to stuff like spelling and grammar ?
your posts are getting increasingly difficult to read and understand.
Gerard
Forum Moderator
Posts: 8012
Joined: 15 Nov 1999 12:31

Re: Indian Space Program Discussion

Post by Gerard »

disha wrote:Next step, some large format, high speed video of launches.
No.
Video from the launch vehicle itself.
PratikDas
BRFite
Posts: 1927
Joined: 06 Feb 2009 07:46
Contact:

Re: Indian Space Program Discussion

Post by PratikDas »

Gerard wrote:
disha wrote:Next step, some large format, high speed video of launches.
No. Video from the launch vehicle itself.
Or yes to both of you? :D
Arun_S
BRF Oldie
Posts: 2800
Joined: 14 Jun 2000 11:31
Location: KhyberDurra

Re: Indian Space Program Discussion

Post by Arun_S »

Gerard wrote:
disha wrote:Next step, some large format, high speed video of launches.
No.
Video from the launch vehicle itself.
That is totally not cool because one cant see the rocket itself, and the view is so static, zoom frame so small and space so featureless. What next, view from a chase raakit, one slightly ahead of the raakit and one flying a little behind.

Chasing Mirage :wink:
ashish raval
BRFite
Posts: 1389
Joined: 10 Aug 2006 00:49
Location: London
Contact:

Re: Indian Space Program Discussion

Post by ashish raval »

Congrats to ISRO guys. Looking forward to hear something about ASAT test.
Arun_S
BRF Oldie
Posts: 2800
Joined: 14 Jun 2000 11:31
Location: KhyberDurra

Re: Indian Space Program Discussion

Post by Arun_S »

disha wrote:
SSridhar wrote: I was expecting this question.
:rotfl:

New word for BR lexicon - "Frangible Confidence" (tm)

Frangible Confidence - Confidence of desis in their own created desi technology.

For eg.

PSLV is not as efficient to some random Long March rocket, chalk it down to Frangible Confidence (FC)
How come we are ahead in Remote Sensing technology, we cannot be. Chalk it down again to Frangible Confidence (FC)

I can apply the above two words in almost all of the forums here!
Disha: Mercy on "Frangible Yindians" (tm) please, its only the beautifool Secular Yinglish Yeducation of Laard Mccauly that makes "Frangible Man" out of raw Indian children.

Mera Bharat kahaan (sic)? (Where is my India?)
Gerard
Forum Moderator
Posts: 8012
Joined: 15 Nov 1999 12:31

Re: Indian Space Program Discussion

Post by Gerard »

Arun_S wrote:That is totally not cool because one cant see the rocket itself, and the view is so static, zoom frame so small and space so featureless.
?

I meant onboard camera shots like these

SpaceX - Falcon-1 4th flight
http://www.youtube.com/watch?v=To-XOPgaGsQ

Nasa - Delta2
http://www.youtube.com/watch?v=OC_uxhsMk0Y

Compared to these, video like today's launch of SICRAL 1B looks so dated
Sealaunch
http://www.youtube.com/watch?v=QHMDbX8IHrQ
Sanjay M
BRF Oldie
Posts: 4892
Joined: 02 Nov 2005 14:57

Re: Indian Space Program Discussion

Post by Sanjay M »

Even way back as a child in the 5th grade, I used to launch those Estes model rockets, and had a small payload camera that used to snap a picture after the chute jettisoned.




Anybody knows that there are great pictures to be taken from onboard the rocket itself. The ISRO pencil-pushers need to understand what funds campaigning is all about. I'm sure the triumph-hungry Kaangress-wallahs would be very supportive of such visual paeans, since they badly need some successes to take credit for and parade before the masses.
satya
BRFite
Posts: 718
Joined: 19 Jan 2005 03:09

Re: Indian Space Program Discussion

Post by satya »

Can't understand what's this issue about PR thing and everything around this launch , maybe its something damn if they do damn if they don't or perhaps its perfect and we can't digest it so have to find out some issues with this launch or wait a minute not made in india or lens not indian or wait a second my neighbour's buffalo didn't give milk because of launch stress .
JaiS
Forum Moderator
Posts: 2187
Joined: 01 Mar 2003 12:31
Location: JPEG-jingostan
Contact:

Re: Indian Space Program Discussion

Post by JaiS »

Some more articles about the RISAT-2 launch.

High Res Image of RISAT-2 launch, credits: PIB

India’s $200M TECSAR Satellite Purchase Launched

PM, Speakerhail ISRO scientists on RISAT launch

Surveillance satellite put in orbit by PSLV

A brilliant spectacle in eastern horizon

At the end of about 18 minutes of flight, the fourth stage injected RISAT-2 at a velocity of 26,000 km an hour into orbit at an altitude of 550 km. About a minute later, the 38-kg Anusat was in orbit.

Asked at what cost the RISAT-2 was bought from Israel, Mr. Nair said, “We had cooperation with the Israel Aerospace Industries” in building the RISAT-2. He, however, declined to reveal its commercial aspects.

-- rest sniped --
Tilak
BRFite
Posts: 733
Joined: 31 Jul 2005 20:19
Location: Old Lal Masjid @BRFATA (*Renovation*)

Re: Indian Space Program Discussion

Post by Tilak »

JaiS wrote:India’s $200M TECSAR Satellite Purchase Launched

Recent statements by members of the Indian Space Research Organization (ISRO) suggest that their “RISAT-2” is an IAI TECSAR bought off the shelf, while other reports state that it uses the TECSAR radar on top of an ISRO satellite bus, command and control system, and down links.
India Launches High-Tech Imaging Satellite
By Steve Herman
New Delhi
20 April 2009
Independent aerospace and defense analyst Lance Gatling, in Tokyo, tells VOA News the Israeli-built satellite contains X-band synthetic aperture radar designed to observe grounds targets down to one meter in size.

"It doesn't use ambient light so it can actually see through clouds and it can also see in total darkness," Gatling explained.

India's existing satellites often get blinded at night and during the monsoon season.

Indian media reports say the 300 kilogram satellite will be in an orbit at an altitude of 550 kilometers. It is expected to have a lifespan of three years.
sum
BRF Oldie
Posts: 10205
Joined: 08 May 2007 17:04
Location: (IT-vity && DRDO) nagar

Re: Indian Space Program Discussion

Post by sum »

Israeli-built satellite contains X-band synthetic aperture radar designed to observe grounds targets down to one meter in size.
Isnt it sub-meter capability? (10-50 cm or so?)
Arun_S
BRF Oldie
Posts: 2800
Joined: 14 Jun 2000 11:31
Location: KhyberDurra

Re: Indian Space Program Discussion

Post by Arun_S »

Gerard wrote:
Arun_S wrote:That is totally not cool because one cant see the rocket itself, and the view is so static, zoom frame so small and space so featureless.
?

I meant onboard camera shots like these

SpaceX - Falcon-1 4th flight
http://www.youtube.com/watch?v=To-XOPgaGsQ

Nasa - Delta2
http://www.youtube.com/watch?v=OC_uxhsMk0Y

Compared to these, video like today's launch of SICRAL 1B looks so dated
Sealaunch
http://www.youtube.com/watch?v=QHMDbX8IHrQ
Gerard saar: I have seen similar feeds before. They look good for initial 200 seconds. For night launch I bet no one bothers to watch beyond first 100 seconds. because it so feature less and repetitive. Even for a day launch launch pad and weather become featureless very quickly due to distance as well as vehicle turning to start to fly horizontal to conserve / minimize ISP loss due to gravity.

Incidentally the clip on SpaceX 14th flight trajectory is totally different from space launch vehicles. That Falcon is a toy launcher in a profile flying largely the trajectory of sounding rocket (that is the reason one can see earth for that long). Most launchers OTOH tilt after ~120-200 seconds of flight and quickly lose earth in the background. One will also notice that after few minutes the video clip become as boring as watching water warm up for tea. BTW SpaceX would have lost half of their follow-on funding, had their investors not seen that video clip as a tangible deliverable. Smart Yankee trick to make mountain out of a mole IMO.

It however is a great tool for failure investigation. And SpaceX Falcon has had many and will have some more in future too.

JMT.
Hiten
BRFite
Posts: 1130
Joined: 21 Sep 2008 07:57
Location: Baudland
Contact:

Re: Indian Space Program Discussion

Post by Hiten »

ISRO must seriously consider releasing hi-res images of its various launches and satellites

no better PR exercise than to have ISRO images neatly cropped acc to aspect ratio and used as desktop wallpapers esp College Computers

something like these
http://www.af.mil/shared/media/photodb/ ... 0A-100.jpg

http://www.af.mil/shared/media/photodb/ ... 4A-027.jpg

am I to be blamed if my wallpaper changer shuffles between 563 images of the USAF and only 51 of the IAF :(
negi
BRF Oldie
Posts: 13112
Joined: 27 Jul 2006 17:51
Location: Ban se dar nahin lagta , chootiyon se lagta hai .

Re: Indian Space Program Discussion

Post by negi »

Remarkable thing about Zenit is all stages are semi-cryogenic ;should say even today Ru has pretty good Semi cryo engine technology.
juvva
BRFite
Posts: 380
Joined: 20 Oct 2008 17:34

Re: Indian Space Program Discussion

Post by juvva »

ISRO Going Full Blast With Chandrayaan-2

http://www.moondaily.com/reports/ISRO_G ... 2_999.html
KrishG
BR Mainsite Crew
Posts: 1290
Joined: 25 Nov 2008 20:43
Location: Land of Trala-la

Re: Indian Space Program Discussion

Post by KrishG »

negi wrote:Remarkable thing about Zenit is all stages are semi-cryogenic ;should say even today Ru has pretty good Semi cryo engine technology.
But, I am mighty impressed with Falcon-9. It's also an all semi-cryo vehicle but the launch cost is 35 million USD. According to me a GSLV launch will cost somewhere around 28 million USD. But the payload capacity of Falcon-9 in 9-10 tons to LEO. The design seems simple and compact.
We will be getting our first semi-cryo by what 2012 ??
KrishG
BR Mainsite Crew
Posts: 1290
Joined: 25 Nov 2008 20:43
Location: Land of Trala-la

Re: Indian Space Program Discussion

Post by KrishG »

Tilak wrote:
JaiS wrote:India’s $200M TECSAR Satellite Purchase Launched

Recent statements by members of the Indian Space Research Organization (ISRO) suggest that their “RISAT-2” is an IAI TECSAR bought off the shelf, while other reports state that it uses the TECSAR radar on top of an ISRO satellite bus, command and control system, and down links.
India Launches High-Tech Imaging Satellite
By Steve Herman
New Delhi
20 April 2009
Independent aerospace and defense analyst Lance Gatling, in Tokyo, tells VOA News the Israeli-built satellite contains X-band synthetic aperture radar designed to observe grounds targets down to one meter in size.

"It doesn't use ambient light so it can actually see through clouds and it can also see in total darkness," Gatling explained.

India's existing satellites often get blinded at night and during the monsoon season.

Indian media reports say the 300 kilogram satellite will be in an orbit at an altitude of 550 kilometers. It is expected to have a lifespan of three years.
I am really skeptical of the cost. Even the Ofeq series which are better than TecSAR cost around 100 million. TecSAR surely wouldn't cost 200 million USD.
arun
BRF Oldie
Posts: 10248
Joined: 28 Nov 2002 12:31

Re: Indian Space Program Discussion

Post by arun »

Anything rocketry related written by T.S.Subramanian is a good read and this article is more of the same.

If ISRO can pull off 5 launches in 2009 it will certainly be “a season of fireworks” :
Mr. Nair said it would be “a season of fireworks” this year at Sriharikota with a series of “major missions” lined up by the ISRO. By June end, a PSLV will put in orbit ISRO’s Oceansat-2. Another PSLV will deploy in orbit Resourcesat-2. A Geo-Synchronous Satellite Launch Vehicle, with an indigenous cryogenic stage, would also lift off from Sriharikota. The indigenous Radar Imaging Satellite RISAT-1 too may go up by this year-end.
Another item covered in the same article is on the manned mission:
About the ISRO’s plans to send an Indian into space, K. Radhakrishnan, Director, Vikram Sarabhai Space Centre, Thiruvananthapuram, said the mission had four major elements: setting up facilities to train astronauts, building a new launch pad at Sriharikota and establishing facilities to enable the crew to get into the vehicle and a mission control centre to communicate with the astronauts all through the mission.

A GSLV would put the module carrying two Indian astronauts into space. They would stay in space for seven days. The module would orbit at an altitude of 400 km to 700 km.

Dr. Radhakrishnan said, “We need to develop crew modules. We need to have developmental flights. We need to test the vehicle without humans first. All these require the development of critical technologies.”

Another important issue related to re-entry technology. The Space Capsule Recovery Experiment (SRE-1) in January 2007 was a major input for this technology. The ISRO aimed to put Indian astronauts in space in seven years from now. The project would cost Rs.12, 400 crores.
And yet another on the GSLV Mark III :
N. Narayana Moorthy, Project Director, GSLV Mark III, said the ground testing of the new vehicle’s major propulsion systems would be done at Sriharikota in August. “All facilities are ready. The hardware is ready.”

The first cryogenic engine for the vehicle would be ready for testing by this year-end. The GSLV Mark III would lift off in 2011.
Last edited by arun on 21 Apr 2009 15:42, edited 1 time in total.
Jamal K. Malik
BRFite
Posts: 637
Joined: 27 Mar 2009 23:03

Re: Indian Space Program Discussion

Post by Jamal K. Malik »

Tilak wrote:
JaiS wrote:India’s $200M TECSAR Satellite Purchase Launched

Recent statements by members of the Indian Space Research Organization (ISRO) suggest that their “RISAT-2” is an IAI TECSAR bought off the shelf, while other reports state that it uses the TECSAR radar on top of an ISRO satellite bus, command and control system, and down links.
India Launches High-Tech Imaging Satellite
By Steve Herman
New Delhi
20 April 2009
Independent aerospace and defense analyst Lance Gatling, in Tokyo, tells VOA News the Israeli-built satellite contains X-band synthetic aperture radar designed to observe grounds targets down to one meter in size.

"It doesn't use ambient light so it can actually see through clouds and it can also see in total darkness," Gatling explained.

India's existing satellites often get blinded at night and during the monsoon season.

Indian media reports say the 300 kilogram satellite will be in an orbit at an altitude of 550 kilometers. It is expected to have a lifespan of three years.
With help of this statement , we can calculate the cost of RISAT-II:
Not disclosing the price of RISAT-II, Nair said: "Normally a remote sensing satellite weighing one tonne would cost around Rs 80 crore. This spacecraft is much smaller."

http://timesofindia.indiatimes.com/Indi ... 422951.cms
k prasad
BRFite
Posts: 980
Joined: 21 Oct 2007 17:38
Location: Somewhere over the Rainbow
Contact:

Re: Indian Space Program Discussion

Post by k prasad »

Just some confirmed stuff from the Top echelons of CY-1 program - enjoy!!!

1. There is on-paper agreement with the member countries that they will share the data with India for the complete duration of the CY-1 mission. This includes Mini-Sar and others. The data itself is collected at Byalalu, and there are no separate recieving stations for different instruments.

2. Also saw some Mini-sar pics - Simplee Beautiful - astounding clarity and resolution.

3. The NASA's LRO, which will be launched in May, will rendevous with CY-1 in orbit. They both have the same Mini-sar on each other. Thus, once they rendevous, they will form a bistatic radar (at a 5 degree angle of separation). This bistatic experiment is a revolutionary thing that is being tried for the first time from space based sensors.

The Expt will allow them much higher resolutions to search for volume ice on the Moon poles.

4. Around 48 proposals were recieved for payloads on CY-1. Unfortunately, there wasn't interest from Indian universities and Cos, which were ISRo's first choice.



And yeah... great job with RISAT!!!
Jamal K. Malik
BRFite
Posts: 637
Joined: 27 Mar 2009 23:03

Re: Indian Space Program Discussion

Post by Jamal K. Malik »

Rahul M wrote:
Jamal K. Malik wrote:It is poor PR regarding this RISAT2.
1) This sat become Israli.
2) It become spy.
we can do better if we conceal the fact!!
Is it election effect????
jamal, could you pay a little more attention to stuff like spelling and grammar ?
your posts are getting increasingly difficult to read and understand.
Sir,
I will take care :)
SSSalvi
BRFite
Posts: 787
Joined: 23 Jan 2007 19:35
Location: Hyderabad

Re: Indian Space Program Discussion

Post by SSSalvi »

Just for comparison : Orbits of CARTOSAT-2 ( about 97 deg inclination ) and RISAT-2 and ANUSAT ( about 41 deg inclination )
Image
sum
BRF Oldie
Posts: 10205
Joined: 08 May 2007 17:04
Location: (IT-vity && DRDO) nagar

Re: Indian Space Program Discussion

Post by sum »

Around 48 proposals were recieved for payloads on CY-1. Unfortunately, there wasn't interest from Indian universities and Cos, which were ISRo's first choice.
:(
svinayak
BRF Oldie
Posts: 14222
Joined: 09 Feb 1999 12:31

Re: Indian Space Program Discussion

Post by svinayak »

sum wrote:
Around 48 proposals were recieved for payloads on CY-1. Unfortunately, there wasn't interest from Indian universities and Cos, which were ISRo's first choice.
:(
They need to collaborate to make sure that some Indian universities participate.
Arun_S
BRF Oldie
Posts: 2800
Joined: 14 Jun 2000 11:31
Location: KhyberDurra

Re: Indian Space Program Discussion

Post by Arun_S »

SSSalvi wrote:Just for comparison : Orbits of CARTOSAT-2 ( about 97 deg inclination ) and RISAT-2 and ANUSAT ( about 41 deg inclination )
Image
S^3: Thanks for pointing that out. I had that in my agneda to share.
It should be clear from orbital ground track provided by S^3 that the RISAT is focused on weather/geographical disaster surveillance in Indian sub-continent. :twisted:

The 41 degree orbital inclination doubles the revisit frequency. Also pls note that satellite spends much greater proportion of surveillance time near Jammu & Kashmir. Given that that mountainous region is most unstable geographically (and also Jaish-e-Pig kind of pure-Islam).

Pls note that the RISAT has much greater ability to scan off-track (side looking) areas. Just increases the vigil and availabelity of "Dispatch-To-Houristan" bonus service provided for free by Hindoostan.

IIRC Israeli radar sat is also in similar orbital inclination. Any light bulb ideas is onlee an innocent coincidence !!
anishns
BRFite
Posts: 1382
Joined: 16 Dec 2007 09:43
Location: being victim onlee...

Re: Indian Space Program Discussion

Post by anishns »

Does anyone know why RISAT-2 and ANUSAT are not trackable on
http://www.n2yo.com/
Nitesh
BRFite
Posts: 903
Joined: 23 Mar 2008 22:22
Location: Bangalore
Contact:

Re: Indian Space Program Discussion

Post by Nitesh »

Post Reply