INSAT-4B
INSAT-4B |
| Mission type |
Communications |
|---|
| Operator |
ISRO |
|---|
| COSPAR ID |
2007-007A |
|---|
| SATCAT № |
30793 |
|---|
| Mission duration |
12 years |
|---|
|
| Spacecraft properties |
|---|
| Bus |
I-3K |
|---|
| Manufacturer |
ISRO |
|---|
| Launch mass |
3,028 kilograms (6,676 lb) |
|---|
| Dry mass |
1,335 kilograms (2,943 lb) |
|---|
|
| Start of mission |
|---|
| Launch date |
11 March 2007, 22:03 (2007-03-11UTC22:03Z) UTC[1] |
|---|
| Rocket |
Ariane 5ECA |
|---|
| Launch site |
Kourou ELA-3 |
|---|
| Contractor |
Arianespace |
|---|
|
| Orbital parameters |
|---|
| Reference system |
Geocentric |
|---|
| Regime |
Geostationary |
|---|
| Longitude |
93.48° east |
|---|
| Semi-major axis |
42,163.57 kilometres (26,199.23 mi) |
|---|
| Eccentricity |
0.0003909 |
|---|
| Perigee |
35,776 kilometres (22,230 mi) |
|---|
| Apogee |
35,809 kilometres (22,251 mi) |
|---|
| Inclination |
0.07 degrees |
|---|
| Period |
23.93 hours |
|---|
| Epoch |
11 November 2013, 22:16:22 UTC[2] |
|---|
INSAT-4B is an Indian communications satellite which forms part of the Indian National Satellite System. Launched in 2007, it is operated in geostationary orbit at a longitude of 93.48° east.[3]
Built by the Indian Space Research Organisation, INSAT-4B is based upon the I-3K satellite bus. It had a mass at launch of 3,028 kilograms (6,676 lb), with a dry mass of 1,335 kilograms (2,943 lb) and was expected to operate for twelve years. Two solar arrays power the satellite, while its communications payload consists of twelve C and twelve Ku band transponders.[4]
Arianespace was contracted to launch INSAT-4B using an Ariane 5ECA carrier rocket. The launch occurred on 11 March 2007 at 22:03 UTC, from ELA-3 at Kourou.[1] The Skynet 5A military communications satellite for the British Ministry of Defence was launched aboard the same rocket.
INSAT-4B was successfully inserted into geosynchronous transfer orbit, from which it raised itself into geostationary orbit using a liquid-fuelled apogee motor.[4] It received the International Designator 2007-007A and Satellite Catalog Number 30793.[5] As of 11 November 2013, it is in an orbit with a perigee of 35,776 kilometres (22,230 mi), an apogee of 35,809 kilometres (22,251 mi), inclination of 0.07 degrees and an orbital period of 23.93 hours.[2]
References
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| | | Payloads are separated by bullets ( · ), launches by pipes ( | ). Manned flights are indicated in bold text. Uncatalogued launch failures are listed in italics. Payloads deployed from other spacecraft are denoted in brackets. |
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| | INSAT-1 Series | |
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| | INSAT-2 Series | |
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| | INSAT-3 Series | |
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| | INSAT-4 Series | |
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