 | |
| Mission type | Communications, Cloud Observation |
|---|---|
| Operator | INSAT |
| COSPAR ID | 1990-051A |
| SATCAT no. | 20643 |
| Mission duration | 7 years |
| Spacecraft properties | |
| Spacecraft type | INSAT-1 |
| Manufacturer | Ford Aerospace |
| Launch mass | 1,190 kilograms (2,620 lb) (Lift - off Mass)[1] |
| Dry mass | 550 kilograms (1,210 lb)[1] |
| Power | 1000 W (Solar array);[1] Nominal Power: 1200.0 W [2] |
| Start of mission | |
| Launch date | June 12, 1990, 05:52:00 UTC [3][4] |
| Rocket | Delta 4925[5] |
| Launch site | Cape Canaveral LC-17B |
| Contractor | NASA |
| Deployment date | UTC |
| End of mission | |
| Disposal | Decommissioned (mission life over)[1] |
| Deactivated | 14 May 2002 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Geostationary |
| Longitude | 83° east [1] |
| Semi-major axis | 42,164.88 kilometres (26,200.04 mi) |
| Eccentricity | 0.0012393 |
| Perigee altitude | 35,741 kilometres (22,208 mi) |
| Apogee altitude | 35,846 kilometres (22,274 mi) |
| Inclination | 14.30 degrees[6] |
| Period | 23.93 hours |
| Epoch | 14 November 2013, 15:52:38 UTC[6] |
INSAT-1D was 4th and the concluding multipurpose geostationary satellite of the INSAT-1 (first-generation seven-year responsibility for the operation of the INSAT space segment.[7]
But the success of this launch meant a lot to India - a country that was setting up its national computer networks. Relying on a lot of communication circuits, microwave, coaxial, and fibre-optic telecommunication links throughout the country causes a huge problem; and thus the Indian Space Research Organisation (ISRO) planned at the start of the INSAT-1 series to always have at least two satellites in space to meet the increasing demand of telecommunication links for India's civilian community. INSAT-1A and INSAT-1C had already faced immature death and their plans had suffered a serious setback. Another satellite INSAT-1B, launched in 1983, exceeded its planned seven-year working life.[8]
- ^ a b c d e "ISRO Satellite Centre, Bengaluru - SALIENT FEATURES OF INSAT-1D".
- ^ Cite error: The named reference
COSPAR ID: 1990-051Awas invoked but never defined (see the help page). - ^ "Archived ISRO Website". Archived from the original on 2014-10-17.
{{cite web}}: CS1 maint: bot: original URL status unknown (link) - ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 16 November 2013.
- ^ "Department of Space Indian Space Research Organization - INSAT-1D". dos.gov.in. 12 June 1990. Archived from the original on 30 March 2018. Retrieved 1 May 2017.
- ^ a b "INSAT 1B Satellite details 1983-089B NORAD 14318". N2YO. 14 November 2013. Retrieved 16 November 2013.
- ^ "INSAT-2". eoPortal.
- ^ "Filling a crucial gap; The satellite will improve vital communication links". Amarnath K. Mknon, India Today. July 15, 1990.