Telkom-1 was a geosynchronous communications satellite built by Lockheed Martin, (Sunnyvale, California), for Indonesia's state-owned telecommunications company, PT Telekomunikasi Indonesia Tbk (PT Telkom).

Telkom-1 was successfully launched 12 August 1999, by an Ariane-42P H10-3,[2] from Centre Spatial Guyanais, pad ELA-2, Kourou, French Guiana, at 22:52 UTC and positioned in geostationary orbit, at 108° East for replaced Palapa-B2R.

The new spacecraft replaced on-orbit Palapa-B2R satellite, improve communications coverage across Indonesia, and allow PT Telkom to expand its coverage area into Southeast Asia and the Indian subcontinent.

[4] Telkom-1 had developed problems with the south solar panel drive, due to a manufacturing error.

On 25 August 2017, Telkom-1 lost contact and suffered a massive debris shedding event, and Telkom-1 was retired without being able to move itself into a graveyard orbit.