Created by Aryakin2022
Last edited February 27, 2026



Template:Infobox spaceflight

IRNSS-1D is a satellite in the Indian Regional Navigational Satellite System (IRNSS) constellation. The satellite is the fourth of seven in the constellation, launched after IRNSS-1A, IRNSS-1B and IRNSS-1C. The satellite is the only satellite in the constellation slated to provide navigational services to the region. The satellite will be placed in geosynchronous orbit.[1] It was launched successfully on 28 March 2015 onboard ISRO's PSLV-C27 from Satish Dhawan Space Centre, Sriharikota.[2][3][4]

Satellite

The satellite will help in augmenting the satellite based navigation system of India which is currently under development. The navigational system so developed will be a regional one targeted towards South Asia. The satellite will provide navigation, tracking and mapping services.[5]

IRNSS-1D 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 Global Positioning System (GPS) and Galileo.[1] The satellite is powered by two solar arrays, which generate power up to 1,660 watts, and has a life-time of ten years.

Cost

The total cost of the mission was estimated at Template:INR14 billion.[6]

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See also

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References

  1. 1.0 1.1 IRNSS. space.skyrocket.de. Retrieved 6 December 2014.
  2. India's Fourth Navigational Satellite IRNSS-1D Launched From Sriharikota.
  3. ISRO puts India's Navigation satellite IRNSS 1B into orbit. news.biharprabha.com. Retrieved 4 April 2014.
  4. IRNSS 1-D launch put off. India(4 March 2015). Retrieved 4 March 2015.
  5. ISRO: After GSLV launch, PSLV C24 with IRNSS-1B likely in March. India(5 January 2014). Retrieved 6 January 2014.
  6. Countdown to IRNSS 1D on March 7. The Hindu(March 2015). Retrieved 28 March 2015.

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