Insat 4G (GSat 8)

GSAT-8 / INSAT-4G is proposed as a Ku-band satellite carrying 18 transponders similar to that of INSAT-4A and INSAT-4B. It will also carry 2 BSS transponders and a GAGAN (GPS Aided Geo Augmented Navigation) payload (satellite navigation for aviation). The satellite is expected to be launched during 2008-09.

INSAT-4 series is planned to have seven satellites, INSAT-4A through INSAT-4G with INSAT-4D as a spare. The transponder capacity of this series has been worked out after evaluating the requirement projected by different uses/user departments. It is planned that, by 2007, INSAT system will have about 250 transponders in various bands catering to a demand of up to 11 Giga Bits Per Second (GBPS) capacity.

Nation:	India
Type / Application:	Communication
Operator:	Insat
Contractors:	ISRO
Equipment:	18 Ku-band transponders, 2 BSS transponders, GAGAN payload
Configuration:	I-3K (I-3000) Bus
Propulsion:	440 Newton thrust liquid apogee motor
Lifetime:
Mass:	3200 kg
Orbit:	GEO

Satellite	Date	LS		Launcher	Remarks:
Insat 4G (GSAT 8)	2010	Ko ELA-3		Ariane-5ECA	with ?

Further Insat missions:

Insat 1A, 1B, 1C, 1D (Insat-1 Bus)
Insat 2A, 2B (I-2K Bus)
Insat 2C, 2D (I-2K Bus)
Insat 2DT (Spacebus-1000)
Insat 2E (I-2K Bus)
Insat 3A (I-2K Bus)
Insat 3B (I-2K Bus)
Insat 3C (I-2K Bus)
Insat 3D (I-2K Bus)
Insat 3E (I-2K Bus)
Insat 4A, 4B (I-3K Bus)
Insat 4C, 4CR (I-2K Bus)
Insat 4D (I-2K Bus)
Insat 4E (I-2K Bus)
Insat 4F (I-2K Bus)
Insat 4G (I-3K Bus)

Further GSat missions:

GSat 1 (I-2K Bus)
GSat 2 (I-2K Bus)
GSat 3 (EduSat) (I-2K Bus)
GSat 4 (HealthSat) (I-2K Bus)
GSat 5 (I-2K Bus)
GSat 6 (I-2K Bus)
GSat 7 (I-2K Bus)
GSat 8 (I-3K Bus)
GSat 9 (I-2K Bus)
GSat 10 (I-3K Bus)
GSat 11 (I-4K Bus)
GSat 12 (I-1K Bus)

Source: ISRO Website