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|Mission duration||10 years|
|Manufacturer||ISRO Satellite Centre|
Space Applications Centre
|Launch mass||1,432 kilograms (3,157 lb)|
|Start of mission|
|Launch date||4 April 2014, 11:44 UTC|
|Launch site||Satish Dhawan FLP|
|Perigee altitude||35,714 km (22,192 mi)|
|Apogee altitude||35,870 km (22,290 mi)|
|Epoch||25 January 2015, 01:32:48 UTC|
IRNSS-1B is the second out of seven in the Indian Regional Navigation Satellite System (IRNSS) series of satellites after IRNSS-1A. The IRNSS constellation of satellites is slated to be launched to provide navigational services to the region. It was placed in geosynchronous orbit on 4 April 2014.
The satellite will help 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.
IRNSS-1B 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 interoperable and compatible with Global Positioning System (GPS) and Galileo. The satellite is powered by two solar arrays, which generate power up to 1,660 watts, and has a life-time of ten years.
- "IRNSS 1B Satellite details 2014-017A NORAD 39635". N2YO. 25 January 2015. Retrieved 25 January 2015.
- "IRNSS-1B". Indian Space Research Organisation. Retrieved 4 April 2014.
- "IRNSS". space.skyrocket.de. Retrieved 6 December 2014.
- "ISRO puts India's Navigation satellite IRNSS 1B into orbit". IANS. news.biharprabha.com. Retrieved 4 April 2014.
- "ISRO: After GSLV launch, PSLV C24 with IRNSS-1B likely in March". India TV News. 5 January 2014. Retrieved 6 January 2014.
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