Telstar 7

Launch Time
Sat Sep 25, 1999 06:29 UTC

Flight V120.


Ariane 44LP
Image Credit: Arianespace
Status: Retired
Liftoff Thrust: 5,800 kN
Payload to GTO: 4,220 kg
Stages: 3
Strap-ons: 4
Rocket Height: 58.72 m

Mission Details

Telstar 7

Galaxy 27 (formerly Telstar 7) is a communications satellite owned by Intelsat. It was at first located at 129° W longitude, serving most of the North American market. It was built by Space Systems/Loral, as part of its FS-1300 line.

This satellite experienced a power failure of several days in 2004 and returned to service with reduced capacity.

In May 2011, Galaxy 27 was redeployed to 45.1° E longitude in order to expand Intelsat's services in the Middle East and West Asia. In October 2013, Intelsat moved the satellite to an inclined orbit at 66° E. At its inclined orbit of 2.4° at 66° E, Galaxy 27 is in a collocated orbit with Intelsat 17.

Payloads: 1
Total Mass: 3,793.0 kg
Geostationary Transfer Orbit


ELA-2, Guiana Space Centre, French Guiana, France



54th orbital launch attempt


108th mission
5th mission of 1999
103rd successful mission
47th consecutive successful mission

Ariane 4

89th mission
5th mission of 1999
86th successful mission
47th consecutive successful mission