05-14-2012, 09:36 PM
[quote name='Arun_S' date='14 May 2012 - 08:41 AM' timestamp='1336964602' post='114853']
A5's micro-satellite launch capability is limited to relatively low to medium earth orbit. Question is what mil or communication sats Indian defense forces have in that orbit, and what they do w.r.t. military capability? (there is no communication function in that orbit; there is only EOS and possibly IRNSS function). Given the much smaller micro-sat weight what fraction of functionality and duty cycle can it accomplish?
[/quote]
EOS and IRNSS satellites are possibly the only targets of opportunity which will be taken out in a military conflict. Geo-sync satellites being taken out by any country isn't going to be a problem. There will be no satellite left in orbit to worry about after one of them is taken out.
Iridium satellite weigh 680KG and the new generation are being designed to use L-band (Davos deal frame) and Ka-band. These can transmit up to 1.5mb/second. Also the Iridium links provide 1100 simultaneous calls per satellite and are at 780km. Might be a very important factor in future interlinked soldier program. I suppose the threat we are trying to eliminate here is loss of physical telecom infrastructure in a SEAD operation. The military will continue to have a communication link using a few such satellites.Also the launched satellites may not contain a large solar panel and might just be designed for 40 to 50 days of operations with limited fuel on board for change of orbit. These measure could reduce the payload significantly.
A5's micro-satellite launch capability is limited to relatively low to medium earth orbit. Question is what mil or communication sats Indian defense forces have in that orbit, and what they do w.r.t. military capability? (there is no communication function in that orbit; there is only EOS and possibly IRNSS function). Given the much smaller micro-sat weight what fraction of functionality and duty cycle can it accomplish?
[/quote]
EOS and IRNSS satellites are possibly the only targets of opportunity which will be taken out in a military conflict. Geo-sync satellites being taken out by any country isn't going to be a problem. There will be no satellite left in orbit to worry about after one of them is taken out.
Iridium satellite weigh 680KG and the new generation are being designed to use L-band (Davos deal frame) and Ka-band. These can transmit up to 1.5mb/second. Also the Iridium links provide 1100 simultaneous calls per satellite and are at 780km. Might be a very important factor in future interlinked soldier program. I suppose the threat we are trying to eliminate here is loss of physical telecom infrastructure in a SEAD operation. The military will continue to have a communication link using a few such satellites.Also the launched satellites may not contain a large solar panel and might just be designed for 40 to 50 days of operations with limited fuel on board for change of orbit. These measure could reduce the payload significantly.