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Pakistan under watch - advanced Indian Sat Eyeballing the country [RISAT 2]

arp2041

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This presentation slide, below, shows Pakistan's Karachi Airport, as viewed using India's RISAT-2, Radar Imaging Satellite.

RISAT-2-Satellite-Pakistan-Karachi-A%25255B2%25255D.jpg


complete slide link:

International Goals in Space - Indian Space Programme


The choice of using imagery from Pakistan as an example while speaking about the satellite is highly significant. The need for India to fast-track launch of a Satellite, with a Synthetic Aperture Radar [S.A.R.] on-board, arose soon after Pakistani terrorists, under clear directives from the Pakistan Army, undertook a systematic campaign of carnage in the Indian city of Mumbai, that resulted in the death of hundreds of Indians, along with 6 Americans dying in the hands of Pakistan.

Thus, a decision was taken to acquire an Israeli satellite, already equipped with a SAR, the EL/M-2070 TecSAR, and launch it at the earliest. The satellite was named RISAT-2, even while no RISAT-1 was then orbiting, because the Indian Space Research Organisation [I.S.R.O.] had its own programme underway to develop a Radar Imaging Satellite, that had been allocated the RISAT-1 name.





Since then, ISRO has completed work & also successfully launched the RISAT-1 satellite on-board the Polar Satellite Launch Vehicle [PSLV C-19 mission] on April 26, 2012.



Traditional earth observation satellites require an ambient light source [Sun] to illuminate the target [optical reconnaissance]. Hence, these satellites are unable to generate imagery if it is night or cloudy over the region it is passing. Radar imaging satellites, on the other hand, carry their own illuminating source - microwave radiations. Transmitting radiations at frequencies that can penetrate through cloud cover, these satellites can carry out surveillance irrespective of the Sun.

RISAT-2-Satellite-ISRO-India%25255B3%25255D.jpg



While the RISAT-2 [TecSAR] radiates in the X-Band of the frequency spectrum, the RISAT-1's radar operates a shade lower, in the C-Band. However, since the time the RISAT-1 project was mooted in around 2002, DRDO labs have been successful in developing X-Band T/R modules for use in LCA Tejas's AESA radar,

"According to B.V. Ramesh, project director of LRDE's LSTAR programme, an LRDE-developed X-Band AESA radar could be fitted on the Tejas by 2014. Two modules of the AESA radar have already been launched."

Astra Microwaves has been awarded the contract to productionise the design.

X-Band-T-R-Module-India-Astra-LRDE5.jpg


Thus, it would be safe to assume that work on adapting them for use in future RISATs too must be underway. While RISAT-2 has a revisit period of 3-4 days, a constellation of such satellites in similar orbit space would ensure monitoring of any point in its path with less interval of time between successive revisits.

Pakistan under watch - advanced Indian Satellites Eyeballing the country [RISAT-2] - AA Me, IN
 
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Anything about RISAT-1? I guess that should be better cos its a bigger sat and there was always tech support from Israel available if needed.
 
good news.
by the time we actually need this sat we would have a good experiance on it.
 
old news mate even RISAT 1 has been launched in April this year itself n RISAT 2 was launched in April 2009:undecided:
 
with till we get satellite killing missiles from china
Then you will kill our satellites especially the spy satellite. Do you know it will an act of aggression and start of a war ? Who do you think world will take side ?

Also, if you somehow shoot down our satellite, the millions of debris travelling at thousand of kilometers per hour while be danger to every satellite of every nation and ISS. You think you can get away with International reaction, sanctions and strong action. Getting isolated just like Iran and even other friendly nation will not take your side on this act.

Before taking any action, one should always think of possible consequences especially the bad one.
 
Then you will kill our satellites especially the spy satellite. Do you know it will an act of aggression and start of a war ? Who do you think world will take side ?

Also, if you somehow shoot down our satellite, the millions of debris travelling at thousand of kilometers per hour while be danger to every satellite of every nation and ISS. You think you can get away with International reaction, sanctions and strong action. Getting isolated just like Iran and even other friendly nation will not take your side on this act.

Before taking any action, one should always think of possible consequences especially the bad one.

no it will not be agression but it will be response to your illegal espionage activities and we have the right to protect our soverignty and secrecy
 
Yes achi baath haan yaar.. watch your ENEMIES .. lolz knock your self out nothing speical in it but i think going towards peace is much better watch then anything else.
Sir the way Pakistani members are discussing using nuclear weapons to wipe out India, especially the senior one, on other thread, I think its the need of the hour. I also wish these posters or people like them don't become leaders of tomorrow.

You can see that they don't want peace.
 

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