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GSAT-8 or INSAT-4G is communication satellite. It was constructed by the Indian Space Research Organisation, as part of INSAT system. GSAT-8 was launched on May 21, 2011, from Kourou, French Guiana. The rocket, an Ariane 5 was the carrier, marketed by the European Arianespace.
GSAT-8 (INSAT-4G), is a high power communication satellite in the INSAT system. Weighing about 3,100 kg at lift-off, GSAT-8 is configured to carry 24 high power transponders Ku band and a two-channel GPS Aided Geo Augmented Navigation (GAGAN) payload operating in L1 and L5 bands.
The GSAT series of geosynchronous satellites is a system developed by ISRO with an objective to make India self-reliant in broadcasting services. The system includes a total of 168 transponders (out of which 95 are leased out to provide services to broadcasters) in the C, Extended C and K u bands, providing services to telecommunications, television broadcasting, weather forecasting, disaster ...
GSAT-8 (GramSat-8, or INSAT-4G) Communications [195] 2011-022A: 3,093 kg (6,819 lb) [196] 6242 W [196] 21 May 2011, 2:08:00 IST [197] Ariane-5 VA-202: Centre Spatial Guyanais, Kourou: Communications satellite carries 24 Ku-band transponders and 2 channel GAGAN payload operating in L1 and L5 band: Archived 26 November 2016 at the Wayback Machine ...
GSAT-18 is an Indian communications satellite. Built by ISRO and operated by INSAT, it carries 24 C-band, 12 extended C-band, and 12 K u-band transponders.. The satellite was launched on 5 October 2016 at approximately 20:30 UTC aboard an Ariane 5 ECA rocket from the Guiana Space Centre in Kourou, French Guiana.
The GSAT-7A, with a mission life of 8 years, is also equipped with the payload of 10 Ku band transponders, [6] which offers several advantages over c-band, such more powerful satellite uplink and downlink signals, smaller antennas, and non-interference of communication signals with terrestrial microwave systems. Payload: [11] [12] [13]
The satellite's main communication payload is Ku band and acts as a replacement of the aging INSAT-4CR. [2] The satellite provides advanced telecommunication to the Indian subcontinent. It is used for VSAT networks, television uplinks, digital signage new gathering, DTH services and other communication systems.
INSAT 3C was launched by the Ariane 4 launch vehicle of Arianespace at 5:17 am IST from Kourou, French Guiana in South America.INSAT-3C was placed into a Geo-synchronous Transfer Orbit (GTO), 21 minutes after the lift-off, in a 3-axis stabilised mode, with a perigee of 570 km and an apogee of 35,920 km and an inclination of 4° with respect to the equator.