GSAT 8 Successful Launch from French Guiana - ISRO

Today India's advanced communication satellite, GSAT-8, was successfully launched at 02:08 hrs IST today (May 21, 2011) by the Ariane-V launch vehicle of Arianespace from Kourou. French Guiana.

Ariane V placed GSAT-8 into the intended Geosynchronous Transfer Orbit (GTO) of 35,861 km apogee and 258 km perigee, with an orbital inclination of 2.503 deg with respect to equator.

ISRO's Facility takes control of the Satellite :
ISRO's Master Control Facility (MCF) at Hassan in Karnataka acquired the signals from GSAT-8 satellite immediately after the injection. Initial checks on the satellite have indicated normal health of the satellite. The satellite was captured in three-axis stabilisation mode.

What Next ?
Preparations are underway for the firing of 440 Newton Liquid Apogee Motor (LAM) during the third orbit of the satellite on May 22, 2011 at 03:58 hrs IST as a first step towards taking the satellite to its geostationary orbital home

Basically there are two main payload in this mission:
1. Communication Payload:
24 Ku-band transponders each with 36 MHz usable bandwidth employing 140 WTWTAs in order to cover entire Indian mainland including Andaman Nicobar has been placed.

2. Navigation Payload :
Two-channel GAGAN payload operating in LI and L5 bands provides Satellite-based Navigation services with accuracy and integrity required for civil aviation applicationsover Indian Air Space

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