IRNSS-1A

IRNSS-1A
Mission type Navigation
Operator ISRO
COSPAR ID 2013-034A
SATCAT № 39199
Mission duration 10 years
Spacecraft properties
Bus I-1K
Manufacturer ISRO Satellite Centre
Space Applications Centre
Launch mass 1,425 kilograms (3,142 lb)
Dry mass 614 kilograms (1,354 lb)[1]
Power 1,660 watts
Start of mission
Launch date 1 July 2013, 18:11 UTC (2013-07-01UTC18:11Z)
Rocket PSLV-XL C22
Launch site Satish Dhawan FLP
Contractor ISRO
Orbital parameters
Reference system Geocentric
Regime Geosynchronous
Longitude 55° E
Perigee 35,706.1 km (22,186.7 mi)[1]
Apogee 35,882.7 km (22,296.5 mi)[1]
Inclination 28.2°[1]
Period 1436.1 minutes[1]
Epoch 22 January 2015, 16:27:41 UTC[1]

IRNSS-1A is the first navigational satellite in the Indian Regional Navigation Satellite System (IRNSS) series of satellites been placed in geosynchronous orbit.[1][2]

Satellite

The satellite has been developed at a cost of 1.25 billion (US$19 million),[3][4] and was launched on 1 July 2013. It will provide IRNSS services to the Indian public, which would be a system similar to Global Positioning System (GPS) but only for India and the region around it.[5]

Each IRNSS satellite has two payloads: a navigation payload and CDMA ranging payload in addition with a laser retro-reflector. The payload generates navigation signals at L5 and S-band. The design of the payload makes the IRNSS system inter-operable and compatible with GPS and Galileo.[6] The satellite is powered by two solar arrays, which generate power up to 1,660 watts, and has a life-time of ten years.[1]

Launch

The satellite was launched from the Satish Dhawan Space Centre (SDSC) on 1 July 2013 at 11:41 PM (IST).[7] The launch was postponed from its initial launch date of 26 June 2013 due to a technical snag in the 2nd stage of the PSLV-C22 launch rocket.[8] ISRO then replaced the faulty component in the rocket and rescheduled the launch to 1 July 2013 at 11:43 p.m.[9][10]

Scientists from the German Aerospace Centre (DLR)'s Institute of Communications and Navigation in Oberpfaffenhofen, Germany, have received signals from IRNSS-1A. On 23 July 2013, the German Aerospace Center scientists pointed their 30-meter dish antenna at Weilheim towards the satellite and found that it was already transmitting a signal in the L5 frequency band.[11]

See also

References

  1. 1 2 3 4 5 6 7 8 "IRNSS-1A Satellite details 2013-034A NORAD 39199". N2YO. 22 January 2015. Retrieved 25 January 2015.
  2. "IRNSS". space.skyrocket.de. Retrieved 8 April 2012.
  3. "India's first ever dedicated navigation satellite launched". DNA India. 2 July 2013. Retrieved 24 July 2013.
  4. "India's first dedicated navigation satellite placed in orbit". NDTV. 2 July 2013. Retrieved 24 July 2013.
  5. "Planned Satellite Launches in 2013". satlaunch.net. 19 March 2013. Retrieved 20 March 2013.
  6. "IRNSS". space.skyrocket.de. Retrieved 20 March 2013.
  7. "India launches its first navigation satellite". The Times of India. Retrieved 1 July 2013.
  8. "Technical snag puts off satellite launch: ISRO". SGP. Retrieved 2 June 2013.
  9. "PSLV-C22/IRNSS-1A Mission Status". ISRO. Retrieved 26 July 2013.
  10. S Giri Prasad (14 June 2013). "Indian equivalent of the GPS satellite". The Hindu (Chennai, India). Retrieved 14 June 2013.
  11. "Indian Regional Navigation Satellite Starts Signal Transmissions". GPS World. 25 July 2013. Retrieved 28 July 2013.

External links

This article is issued from Wikipedia - version of the Tuesday, May 03, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.