GSAT-6A was a high-power S-band ISRO communication satellite launched by GSLV-F08 on 29 March 2018. Contact was lost after its second orbit-raising manoeuvre, so it never reached geostationary orbit.
No longer operational, according to the public satellite catalogue.
GSAT-6A was a high-power S-band communication satellite, similar to GSAT-6.
It was also meant to test technologies for mobile satellite communication: a 6 m S-band antenna that unfurls in space, handheld ground terminals and network management techniques.
It was built on ISRO's I-2K bus, measured 1.53 × 1.65 × 2.4 m and was designed to generate 3119 W. ISRO planned a mission life of about 10 years.
GSLV-F08 lifted off from the Second Launch Pad at Sriharikota at 16:56 IST on 29 March 2018. It was the 12th flight of GSLV and the sixth with an Indian-made cryogenic stage.
Contact with GSAT-6A was lost after its second orbit-raising manoeuvre. The public satellite catalogue lists it as no longer operational, still in an elliptical orbit of about 26,198 × 36,144 km instead of a circular geostationary one.