| Mission type | Communications |
|---|---|
| Operator | PT Telkom |
| COSPAR ID | 1999-042A |
| SATCAT no. | 25880 |
| Website | https://www.telkom.co.id/sites |
| Mission duration | 15 years (planned) 18 years (achieved) |
| Spacecraft properties | |
| Spacecraft | Telkom-1 |
| Spacecraft type | LM-A2100 |
| Bus | LM-A2100A |
| Manufacturer | Lockheed Martin |
| Launch mass | 2,763 kg (6,091 lb) |
| Dry mass | 1,700 kg (3,700 lb) |
| Start of mission | |
| Launch date | 12 August 1999, 22:52 UTC |
| Rocket | Ariane 42P H10-3 (V118) |
| Launch site | Centre Spatial Guyanais, Kourou, ELA-2 |
| Contractor | Arianespace |
| Entered service | October 1999 |
| End of mission | |
| Last contact | 25 August 2017 [1] |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Geostationary orbit |
| Longitude | 108° East |
| Transponders | |
| Band | 36 C-band |
| Coverage area | Indonesia, Australia |
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). It operated for almost 18 years, more than two years past designed lifetime of 15 years.