The Seven Navigation Satellites of ISRO

ISRO (Indian Space Research Organization) launched seventh and final satellite of the Indian Regional Navigation Satellite System (IRNSS) called IRNSS – 1G on Thursday, April 28, 2016 using Launch vehicle PSLV-C33 and completed own navigation system. The system will be similar to the Global Positioning System (GPS) operated by the United States with 24 satellites and the Glonass, Galileo and BeiDou. The satellites are situated approximately 36,000 km altitude above earth surface.

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

 

Let’s have a look at the list of 7 satellites in the IRNSS mission.

IRNSS-1A 

 
IRNSS-1A

IRNSS-1A is the first satellite in the Indian Regional Navigation Satellite System (IRNSS) launched on Jul 01, 2013 using PSLV-C22 launch vehicle. It weights 1425Kg and work using Two solar panels generating 1660 W. It has estimated mission life of 10 years.

IRNSS-1B

IRNSS-1B

IRNSS-1B is the second dedicated navigation satellite of India. It has a lift-off mass of 1432 kg. The configuration of IRNSS-1B is similar to that of IRNSS-1A. The satellite has been realized in less than seven months after the launch of its predecessor. Launched on Apr 04, 2014 using PSLV-C24 launch vehicle at SDSC SHAR Centre, Sriharikota, India

 

IRNSS-1C

 
IRNSS-1C

IRNSS-1C is the third navigation satellite of the seven satellites constituting the IRNSS space segment. IRNSS-1C has a lift-off mass of 1425.4 kg. The configuration of IRNSS-1C is similar to that of IRNSS-1A and IRNSS-1B. The satellite has been realized in less than six months after the launch of its predecessor. Launched on Oct 16, 2014 using PSLV-C26 launch vehicle at SDSC SHAR Centre, Sriharikota, India

IRNSS-1D

 

IRNSS-1D

IRNSS-1D is the fourth navigation satellite of the seven satellites constituting the IRNSS space segment. IRNSS-1D has a lift-off mass of 1425 kg. The configuration of IRNSS-1D is similar to that of IRNSS-1A, 1B and 1C. The satellite has been realized in less than four months after the launch of its predecessor. Launched on Saturday, March 28, 2015 using PSLV-C27 launch vehicle.

IRNSS-1E

 
IRNSS-1E Takeoff

IRNSS-1E is the fifth navigation satellite of the seven satellites constituting the IRNSS space segment. IRNSS-1E has a lift-off mass of 1425 kg. IRNSS -1E carries two types of payloads – navigation payload and ranging payload. The navigation payload of IRNSS-1E will transmit navigation service signals to the users. This payload will be operating in L5-band and S-band. Launched on Wednesday, January 20, 2016 using PSLV-C31/IRNSS-1E launch vehicle at SDSC SHAR Centre, Sriharikota, India

IRNSS-1F

 
IRNSS-1F

IRNSS-1F is the sixth navigation satellite of the seven satellites constituting the Indian Regional Navigation Satellite System (IRNSS) space segment. IRNSS-1F had a lift-off mass of 1425 kg. The two solar arrays of IRNSS-1F consisting of Ultra Triple Junction solar cells generate about 1660 Watts of electrical power. Launched on Thursday, March 10, 2016 using PSLV-C32/IRNSS-1F launch vehicle at SDSC SHAR Centre, Sriharikota, India

IRNSS-1G

 
IRNSS-1G

IRNSS-1G is the seventh navigation satellite of the seven satellites constituting the IRNSS space segment. Its predecessors. Like all other IRNSS satellites, IRNSS-1G also has a lift-off mass of 1425 kg. The configuration of IRNSS-1G too is the same as IRNSS-1A, 1B, 1C, 1D, 1E and 1F. Launched on Thursday, April 28, 2016 using PSLV-C33/IRNSS-1G launch vehicle at SDSC SHAR Centre, Sriharikota, India

Images source : http://www.isro.gov.in

Muhammed Afsal Villan
Muhammed Afsal Villan is an experienced full-stack developer, specialized in desktop and mobile application development. He also regularly publishes quality tutorials on his YouTube channel named 'Genuine Coder'. He likes to contribute to open-source projects and is always enthusiastic about new technologies.

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