| Auto: | all |
| IRNSS-1B | |
| Mission Type: | Navigation |
| Operator: | ISRO |
| Website: | http://www.isro.org/pslv-c24/mission.aspx |
| Cospar Id: | 2014-017A |
| Satcat: | 39635 |
| Mission Duration: | 10 years |
| Spacecraft Bus: | I-1K |
| Manufacturer: | ISRO Satellite Centre Space Applications Centre |
| Launch Mass: | 1432kg (3,157lb) |
| Power: | 1,660 watts |
| Launch Rocket: | PSLV-XL C24 |
| Launch Site: | Satish Dhawan FLP |
| Launch Contractor: | ISRO |
| Orbit Epoch: | 25 January 2015, 01:32:48 UTC[1] |
| Orbit Reference: | Geocentric |
| Orbit Regime: | Geosynchronous |
| Orbit Periapsis: | 35714km (22,192miles) |
| Orbit Apoapsis: | 35870km (22,290miles) |
| Orbit Inclination: | 30.57 degrees |
| Orbit Period: | 1436.010 minutes |
| Orbit Longitude: | 55° East |
| Apsis: | gee |
| Programme: | NavIC |
| Previous Mission: | IRNSS-1A |
| Next Mission: | IRNSS-1C |
IRNSS-1B is the second out of seven in the Indian Regional Navigation Satellite System (IRNSS) series of satellites after IRNSS-1A.[2] 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.[3]
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.[4]
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.[3] 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 1,432 kg satellite was launched on 4 April 2014 at 11:44 UTC (17:14 IST) aboard the PSLV-C24 rocket from Satish Dhawan Space Centre, Sriharikota.[5]