| INSAT-2D | |
| Mission Type: | Multipurpose communication |
| Operator: | INSAT |
| Mission Duration: | 7 Years |
| Manufacturer: | ISRO |
| Launch Mass: | 2079kg (4,583lb) |
| Dry Mass: | 995kg (2,194lb) |
| Power: | 1650 watts |
| Launch Date: | 4 June 1997 |
| Launch Rocket: | Ariane-4 |
| Launch Site: | French Guiana |
| Deactivated: | 4 Oct, 1997 |
| Orbit Reference: | Geocentric |
| Orbit Regime: | Geostationary |
| Orbit Longitude: | 93.5 Degree East |
INSAT-2D was an Indian communications satellite. Launched on 4 June 1997, and similar to INSAT-2C, INSAT-2D went out of order on October 4, 1997, because of a power inconsistency problem and was later replaced by INSAT-2DT, an in-orbit satellite which was previously known as ARABSAT-1C. The main aim of the satellite was improved communication.[1] [2] In the INSAT-2 (Indian National Satellite System) series, INSAT-2D was the fourth consecutive communication satellite. The satellite was launched using an Ariane 4 rocket from French Guiana.
The satellite was placed into geostationary orbit at an inclination of 93.5 degrees east.[3] INSAT-2D's lift-off mass was 2079kg (4,583lb) with propellants of which 995kg (2,194lb) were the dry weight. The satellite was expected to have a nominal lifespan of around 7–9 years.[4] The onboard power of the satellite was estimated to be 1,650 watts.
Its communication payload consisted of 16C-band transponders (extended C-band, for fixed-satellite service), two high-power C-band transponders (for broadcasting-satellite service, BSS), one S-band transponder (for BSS), one C/S-band mobile communication transponder, and three Ku-band transponders.