Insat-4A
| Insat-4A | |
|---|---|
| Start date | December 21, 2005, 10:33 PM UTC |
| Launcher | Ariane 5GS V169 |
| Launch site | ELA-3 , Guyana Space Center |
| Takeoff mass | 3086 kg |
| Mass in orbit | 1987 kg |
| Manufacturer | ISRO |
| model | Insat 4 |
| lifespan | 12 years |
| operator | ISRO |
| Playback information | |
| Transponder | 12 Ku-band + 12 C-band |
| Transponder performance | 140 W (Ku band) 63 W (C band) |
| Bandwidth | 36 MHz (Ku-band and C-band) |
| EIRP | 52 dBW (Ku-band, EoC) 39 dBW (C-band, EoC) |
| Others | |
| Electrical power | 5500 W |
| position | |
| First position | 83 ° East |
| Actual position | 83 ° East |
| List of geostationary satellites | |
Insat-4A is an Indian general-purpose satellite used for broadcasting and telecommunications. The launch took place on December 21, 2005 with an Ariane 5 GS at 23:33 CET from the Center Spatial Guyanais spaceport ; Another payload on board was the ESA weather satellite MSG 2. It is the first of seven satellites in the Insat 4 series. Insat-4A is to introduce the direct-to-home television service in India. At almost 3,100 kilograms, it is also the heaviest satellite that ISRO has launched so far.
Insat-4B is identical to Insat-4A. An Ariane 5 launcher and a 440 Newton apogee motor placed it in geostationary orbit at 93.5 ° East on March 11, 2007 .
In July 2010, an Insat-4B solar cell boom failed. Since then, the satellite has only been able to function to a limited extent. On September 29, 2010, computer security expert Jeffrey Carr expressed reasonable suspicion that the failure could have been caused by the Stuxnet PLC worm .
INSAT application
- Communications engineering
- watch TV
- Search and rescue of people
- meteorology
- Radio network connection
Individual evidence
- ↑ Insat 4B: Problems with solar cell boom , October 1, 2010
- ↑ Did the Stuxnet worm kill India's Insat 4B satellite? (Engl.) , October 1st 2010
Web links
- Official INSAT-4A page (English)