Jul 01, 2013

IRNSS-1A

IRNSS-1A is the first satellite in the Indian Regional Navigation Satellite System (IRNSS). It is one of the seven satellites constituting the IRNSS space segment.

Payloads - IRNSS-1A carries two types of payloads navigation payload and ranging payload. The navigation payload of IRNSS-1A transmits navigation service signals to the users. This payload is operating in L5-band and S-band. A highly accurate Rubidium atomic clock is part of the navigation payload of the satellite. The ranging payload of IRNSS-1A consists of a C-band transponder which facilitates accurate determination of the range of the satellite. IRNSS-1A also carries Corner Cube Retro Reflectors for laser ranging.

Applications of IRNSS

  • Terrestrial, Aerial and Marine Navigation
  • Disaster Management
  • Vehicle tracking and fleet management
  • Integration with mobile phones
  • Precise Timing
  • Mapping and Geodetic data capture
  • Terrestrial navigation aid for hikers and travelers
  • Visual and voice navigation for drivers
Lift-off Mass 1425 kg
Physical Dimensions 1.58 metre x 1.50 metre x 1.50 metre
Orbit Geosynchronous, at 55 deg East longitude with 29 deg inclination
Power Two solar panels generating 1660 W, one lithium-ion battery of 90 Ampere-Hour capacity
Propulsion 440 Newton Liquid Apogee Motor, twelve 22 Newton Thrusters
Control System Zero momentum system, orientation input from Sun & star Sensors and Gyroscopes; Reaction Wheels, Magnetic Torquers and 22 Newton thrusters as actuators
Mission Life 10 years
Launch date Jul 01, 2013
Launch site SDSC SHAR Centre, Sriharikota, India
Launch vehicle PSLV - C22
Launch Mass: 
1425 kg
Dimension: 
1.58 metre x 1.50 metre x 1.50 metre
Mission Life: 
10 years
Power: 
1660 W
Launch Vehicle: 
PSLV-C22/IRNSS-1A
Type of Satellite: 
Navigation
Manufacturer: 
ISRO
Owner: 
ISRO
Application: 
Navigation
Orbit Type: 
GSO