ISRO loses link with satellite

After the textbook launch onboard GSLV-F08 on Thursday, Isro successfully completed the first orbit raising operation of GSAT-6A Satellite at 9.22am on Friday, which saw the satellite changing its closest and farthest point from earth besides changing its inclination.

ISRO loses link with satellite

India has lost link with its GSAT-6A satellite less than 48 hours of the launch, Indian Space Research Organisation, the space agency, said in an official statement.

After the textbook launch onboard GSLV-F08 on Thursday, Isro successfully completed the first orbit raising operation of GSAT-6A Satellite at 9.22am on Friday, which saw the satellite changing its closest and farthest point from earth besides changing its inclination.
However, according to the statement, the second orbit raising operation of GSAT-6A satellite has been successfully carried out by LAM Engine firing for about 53 minutes on March 31, 2018 in the morning.
"After the successful long duration firings, when the satellite was on course to normal operating configuration for the third and the final firing, scheduled for April 1, 2018, communication from the satellite was lost. Efforts are underway to establish the link with the satellite," the statement added.
Initial analysis points to a power system failure, but Isro has not officially confirmed anything.
On Saturday, the agency's new chairman K Sivan held a marathon meeting with senior scientists through a teleconference.
This was Isro's first launch after Sivan took charge, even as the mission itself was conceived and developed before his time.
GSAT-6A, is a high power communication satellite which was to have a mission life of about 10 years.
It was to provide mobile communication for India with multi-band coverage facility—five beams in S-band and one beam in C-band.
The satellite has a six-metre wide antenna, the biggest used by an Isro communication satellite so far, meant for the S-band communication.
This was to enable the satellite to provide mobile communication for the country through handheld ground terminals, which was not possible earlier as smaller antennas meant larger ground stations. The satellite was also to provide with communication facilities for the armed forces.
GSAT-6A, similar to GSAT-6 is a high power S-band communication satellite configured around I-2K bus. The mission life of spacecraft planned is about 10 years. The satellite will also provide a platform for developing technologies such as demonstration of 6 m S-Band Unfurlable Antenna, handheld ground terminals and network management techniques that could be useful in satellite based mobile communication applications