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. 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.
|Mission type||Multipurpose communication|
|Mission duration||7 Years|
|Launch mass||2,079 kg (4,583 lb)|
|Dry mass||995 kg (2,194 lb)|
|Start of mission|
|Launch date||4 June 1997|
|Launch site||French Guiana|
|End of mission|
|Deactivated||4 Oct, 1997|
|Longitude||93.5 Degree East|
The satellite was placed into geostationary orbit at an inclination of 93.5 degrees east. INSAT-2D's lift-off mass was 2,079 kg (4,583 lb) with propellants of which 995 kg (2,194 lb) were the dry weight. The satellite was expected to have a nominal lifespan of around 7–9 years. 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.
- "INSAT-2D - ISRO". www.isro.gov.in. Retrieved 2021-06-18.
- "INSAT-2D". www.vssc.gov.in. Retrieved 2021-06-18.
- "Welcome To ISRO :: Satellites :: Geo-Stationary Satellite :: INSAT-2D". resource.itschool.gov.in. Retrieved 2021-06-18.
- "Insat 2C, 2D". Gunter's Space Page. Retrieved 2021-06-18.