Launch Time
Mon Jul 10, 2006 12:08 UTC

Shortly after liftoff, a failure in the thrust controller on one of the four liquid rocket boosters resulted in an early booster shutdown. Off-axis thrust from the three remaining boosters resulted in the vehicle veering off-course. It began to disintegrate, and at T+55 seconds the Range Safety Officer terminated the flight over the Bay of Bengal. First total failure of GSLV.


Image Credit: ISRO
Status: Retired
Price: $47.0 million
Payload to GTO: 1,500 kg
Stages: 3
Strap-ons: 4
Rocket Height: 49.13 m
Fairing Diameter: 3.4 m
Fairing Height: 7.8 m

Mission Details


INSAT-4C was an Indian communications satellite that was lost in a launch failure in 2006. Had it reached orbit, it would have formed part of the Indian National Satellite System. Launched in 2007, it was intended to operate in geostationary orbit at a longitude of 73.97° east. The INSAT-4CR satellite, launched in September 2007, replaced it.

Built by the Indian Space Research Organisation, INSAT-4C was based on the I-2K satellite bus. It had a dry mass of 950 kilograms (2,090 lb), or 2,168 kilograms (4,780 lb) when fully fuelled. It was expected to have operated for ten years. The satellite carried twelve Ku band transponders, with two solar arrays to generate power.

ISRO launched INSAT-4C on the second operational flight of the Geosynchronous Satellite Launch Vehicle, which was flying in the Mk.I configuration. The launch took place from the Second Launch Pad at the Satish Dhawan Space Centre; the first time the pad was used by a GSLV. Liftoff occurred at 12:08 UTC on 10 July 2006. Early in the flight, a thrust controller in one of the four liquid rocket boosters failed, resulting in the booster cutting off shortly afterward. Approximately 55 seconds after launch the vehicle veered off-course and began to disintegrate. The range safety officer subsequently commanded the remainder of the rocket to self-destruct.

Payloads: 1
Total Mass: 2,168.0 kg
Geostationary Transfer Orbit


Second Launch Pad, Satish Dhawan Space Centre, India



30th orbital launch attempt

Indian Space Research Organisation

21st mission
1st mission of 2006
5th failed mission


4th mission
1st mission of 2006
1st failed mission