INSAT-3DR the Advanced Weather Satellite Successfully Launched by ISRO [ Current Affairs - Science & Technology ]


INSAT-3DR the advanced weather satellite has been successfully launched by Indian Space Research Organization (ISRO) from Geosynchronous Satellite Launch Vehicle (GSLV-F05), in the Satish Dhawan Space Centre at Sriharikota.

With this ISRO has successfully launched seventh mission this year after the IRNSS series and the scramjet propulsion mission.


  • INSAT-3DR balancing 2,211-kg will supplement the services of INSAT-3D launched from French Guiana in July 2013.
  • It was designed in ten years.
  • INSAT-3DR was placed at Geostationary Transfer Orbit (GTO).
  • INSAT-3DR has cargoes:
  1. Multi-Spectral Imager to capture images of earth at every 26 minutes for providing information about sea surface temperature, snow cover, and cloud motion winds.
  2. Sounder for providing information on temperature and humidity.
  3. Data-Relay Transponder which will collect meteorological, hydrological and oceanographic data.
  4. Satellite Aided Search and Rescue Transponder to collect and relay alert signals originating from distress beacons of aviation, maritime, among others.
  • Along with this it will also provide service continuity to earlier meteorological missions and further augment the capability give various meteorological, search and rescue services.


  • GSLV-F05 was GSLV India’s tenth flight and fourth with the indigenous cryogenic engine CE-7.5.
  • It contains Cryogenic Upper Stage (CUS) on-board.
  • GSLV is a 3 stage rocket with ability to launch 2 to 2.5 ton class of satellites into GTO.
  1. First stage: was fired by solid fuel and its four strap-on motors by liquid fuel.
  2. Second stage: the second stage was powered by liquid fuel
  3. Third stage: was fire by cryogenic engine which is more effective because it is trustable for every kilogram of propellant burnt.

About ISRO

  • ISRO stands for Indian Space Research Organization. It is space agency of Indian Government and it’s headquarter is at Bangalore, India.
  • It was formed in 1969 with name Indian National Committee for Space Research (INCOSPAR).
  • First satellite named ‘Aryabhata’ was built by ISRO and launched by Soviet Union in 1975.
  • Rohini was the first satellite which was placed in orbit by SLV-3 in 1980.

- Published on: September 9, 2016