Indian Space Capabilities
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Data about all the 114 missions by ISRO till now ,
http://www.isro.org/publications/pdf/114 missions Brochure.pdf
http://www.isro.org/publications/pdf/114 missions Brochure.pdf
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Isro Announces Contingency Plan for Mars Orbit Insertion | NDTV Gadgets
The Indian space agency has a contingency plan to insert its spacecraft into Martian orbit September 24 in case its main engine fails to restart and fire, a senior official said Monday.
"In case the main liquid engine of 440 Newton (power) fails to re-start and fire to put the spacecraft (orbiter) into the intended Mars orbit, we will use the small eight thrusters of 22 Newton each located beneath the engine for orientation to salvage the mission," Indian Space Research Organisation's (Isro) Scientific Secretary V. Koteswara Rao told reporters in Bangalore.
The 475kg spacecraft, with five scientific experiments on board, will enter the Mars sphere of influence on September 22 after a 300-day voyage from the earth.
The liquid apogee engine (LAM) was switched off December 4, 2013 after the spacecraft left the earth's sphere of influence and entered into the heliocentric (sun's) orbit to cruise 666 million km towards Mars during the past 9 months.
The Rs. 450-crore ($70 million) ambitious Mars Orbiter Mission (MOM) was launchedNovember 5, 2013, on board a polar rocket from spaceport Sriharikota off Bay of Bengal, about 80km north-east of Chennai, and inserted into the trans-Martian orbit (solar orbit) December 1.
The space agency uses the LAM engines to insert its communication and other utility satellites in the geosynchronous orbits.
"If we miss the opportunity to insert the spacecraft into the Mars orbit using the LAM engine in 24 minutes, we will use the eight thrusters to carry out the contingency in a longer duration though the spacecraft may not get into the intended orbit," Rao noted.
Of the 51 missions to Mars by the American, Russian and European space agencies over the decades, at least nine of them failed to insert their spacecraft into the Martian orbit.
The Indian space agency has a contingency plan to insert its spacecraft into Martian orbit September 24 in case its main engine fails to restart and fire, a senior official said Monday.
"In case the main liquid engine of 440 Newton (power) fails to re-start and fire to put the spacecraft (orbiter) into the intended Mars orbit, we will use the small eight thrusters of 22 Newton each located beneath the engine for orientation to salvage the mission," Indian Space Research Organisation's (Isro) Scientific Secretary V. Koteswara Rao told reporters in Bangalore.
The 475kg spacecraft, with five scientific experiments on board, will enter the Mars sphere of influence on September 22 after a 300-day voyage from the earth.
The liquid apogee engine (LAM) was switched off December 4, 2013 after the spacecraft left the earth's sphere of influence and entered into the heliocentric (sun's) orbit to cruise 666 million km towards Mars during the past 9 months.
The Rs. 450-crore ($70 million) ambitious Mars Orbiter Mission (MOM) was launchedNovember 5, 2013, on board a polar rocket from spaceport Sriharikota off Bay of Bengal, about 80km north-east of Chennai, and inserted into the trans-Martian orbit (solar orbit) December 1.
The space agency uses the LAM engines to insert its communication and other utility satellites in the geosynchronous orbits.
"If we miss the opportunity to insert the spacecraft into the Mars orbit using the LAM engine in 24 minutes, we will use the eight thrusters to carry out the contingency in a longer duration though the spacecraft may not get into the intended orbit," Rao noted.
Of the 51 missions to Mars by the American, Russian and European space agencies over the decades, at least nine of them failed to insert their spacecraft into the Martian orbit.
ISRO advances GSAT-16 launch by 6 months - The Hindu
December launch plan to improve transponder supply
National space agency ISRO has decided to launch one of its upcoming communication satellites, GSAT-16, six months earlier than planned.
The 3,100-kg spacecraft, meant to support public and private television and radio services, large-scale Internet and telephone operations, was originally planned to be flown up around June 2015 on a European Ariane-5 launcher.
The decision to advance GSAT-16 launch came after the older INSAT-3E expired in March this year, according to ISRO Chairman K. Radhakrishnan.
The plan to move an ISRO mission ahead is almost unprecedented. “GSAT-16 will replace INSAT-3E [in the same space orbit at 55 degrees East longitude]. It was planned to be launched in the middle of 2015. After 3E was decommissioned in April, we advanced GSAT-16, which will now go in December this year,” he told The Hindu recently.
The assembly venue in Bangalore, the ISRO Satellite Centre or ISAC, is ready with the spacecraft. “Advancing a satellite by five to six months is a difficult job, but we did it. We also got a slot from Arianespace (launch company) and as of now, we are talking of a launch (around) December 6,” he said. An earliest launch would otherwise have been April 2015.
GSAT-16 will offer 24 transponders in the C-band, 12 in the extended C-band and another 12 in the Ku band.
Transponder shortfall
Over the last couple of years, the space agency has been trying hard to augment transponder capacity — which is about 190 on its own fleet — to meet increasing demand from commercial and public service users. It also had to lease 90 transponders on foreign satellites to meet its shortfall.
Last year, the government approved an allocation of Rs. 865.5 crore towards building GSAT-16, the fee for its foreign launch and insurance; the latter is taken when ISRO uses a foreign launch.
ISRO had to opt for an outside launch as Indian rockets PSLV and the present GSLV cannot lift satellites weighing above 2,000 kg. ISRO is developing the next big launcher, GSLV-MkIII, which can put satellites of up to 4 tonnes in orbit.
The first test flight of MkIII is to be taken up after the ongoing Mars Orbiter Mission reaches its crucial milestone, that of orbiting Mars, on September 24.
December launch plan to improve transponder supply
National space agency ISRO has decided to launch one of its upcoming communication satellites, GSAT-16, six months earlier than planned.
The 3,100-kg spacecraft, meant to support public and private television and radio services, large-scale Internet and telephone operations, was originally planned to be flown up around June 2015 on a European Ariane-5 launcher.
The decision to advance GSAT-16 launch came after the older INSAT-3E expired in March this year, according to ISRO Chairman K. Radhakrishnan.
The plan to move an ISRO mission ahead is almost unprecedented. “GSAT-16 will replace INSAT-3E [in the same space orbit at 55 degrees East longitude]. It was planned to be launched in the middle of 2015. After 3E was decommissioned in April, we advanced GSAT-16, which will now go in December this year,” he told The Hindu recently.
The assembly venue in Bangalore, the ISRO Satellite Centre or ISAC, is ready with the spacecraft. “Advancing a satellite by five to six months is a difficult job, but we did it. We also got a slot from Arianespace (launch company) and as of now, we are talking of a launch (around) December 6,” he said. An earliest launch would otherwise have been April 2015.
GSAT-16 will offer 24 transponders in the C-band, 12 in the extended C-band and another 12 in the Ku band.
Transponder shortfall
Over the last couple of years, the space agency has been trying hard to augment transponder capacity — which is about 190 on its own fleet — to meet increasing demand from commercial and public service users. It also had to lease 90 transponders on foreign satellites to meet its shortfall.
Last year, the government approved an allocation of Rs. 865.5 crore towards building GSAT-16, the fee for its foreign launch and insurance; the latter is taken when ISRO uses a foreign launch.
ISRO had to opt for an outside launch as Indian rockets PSLV and the present GSLV cannot lift satellites weighing above 2,000 kg. ISRO is developing the next big launcher, GSLV-MkIII, which can put satellites of up to 4 tonnes in orbit.
The first test flight of MkIII is to be taken up after the ongoing Mars Orbiter Mission reaches its crucial milestone, that of orbiting Mars, on September 24.
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Any authentication. On this
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About the orbiter? Yup it posted the first picture of mars from the camera:
1st image of Mars, from a height of 7300 km; with 376m spatial resolution. And they are carrying out experiments and receiving data. The data center website should be opened soon.
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