Mission typeNavigation
COSPAR ID2015-018A Edit this at Wikidata
SATCAT no.40547
Mission duration12 years
Spacecraft properties
ManufacturerISRO Satellite Centre
Space Applications Centre
Launch mass1,425 kilograms (3,142 lb)
Dry mass598 kilograms (1,318 lb)
Power1,660 W
Start of mission
Launch date11:49:00, March 28, 2015 (UTC) (2015-03-28T11:49:00UTC)[1]
RocketPSLV-XL C27[2]
Launch siteSatish Dhawan SLP[1]
Orbital parameters
Reference systemGeocentric
Longitude111.75° East
Perigee altitude35,750.0 km (22,214.0 mi)[3]
Apogee altitude35,884.1 km (22,297.3 mi)[3]
Inclination30.43 degrees[3]
Period1436.1 minutes[3]
Epoch5 May 2015, 20:43:00 UTC[3]

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.[4] It was launched successfully on 28 March 2015 onboard ISRO's PSLV-C27 from Satish Dhawan Space Center, Sriharikota.[5][6][7]


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.[8]

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.[4] The satellite is powered by two solar arrays, which generate power up to 1,660 watts, and has a life-time of ten years.


The total cost of the mission was estimated at 14 billion.[9]

See also


  1. ^ a b Graham, William (28 March 2015). "PSLV launches with IRNSS-1D to open India's 2015 campaign". Retrieved 28 March 2015.
  2. ^ "PSLV-C27/IRNSS-1D Mission". ISRO. Archived from the original on 25 February 2015. Retrieved 2 March 2015.
  3. ^ a b c d e "IRNSS 1D Satellite details 2015-018A NORAD 40547". N2YO. 10 May 2015. Retrieved 10 May 2015.
  4. ^ a b "IRNSS". Retrieved 6 December 2014.
  5. ^ "India's Fourth Navigational Satellite IRNSS-1D Launched From Sriharikota".
  6. ^ "ISRO puts India's Navigation satellite IRNSS 1B into orbit". IANS. Retrieved 4 April 2014.
  7. ^ "IRNSS 1-D launch put off". India. 4 March 2015. Retrieved 4 March 2015.
  8. ^ "ISRO: After GSLV launch, PSLV C24 with IRNSS-1B likely in March". India. 5 January 2014. Retrieved 6 January 2014.
  9. ^ Dennis S. Jesudasan (March 2015). "Countdown to IRNSS 1D on March 7". The Hindu. Retrieved 28 March 2015.