EDUSAT Satellite, ISRO

GSAT-3, known as EDUSAT is meant for distant class room education from school level to higher education. This was the first dedicated "Educational Satellite" that provide the country with satellite based two way communication to class room for delivering educational materials.

This is a Geo-synchronous satellite developed on I-2K bus. GSAT-3 was co-located with METSAT(KALPANA-1) and INSAT-3C at 74o E longitude.

MissionEducation
Spacecraft Mass1950.5 kg mass (at Lift - off)
819.4 kg (Dry mass)
Onboard powerTotal four solar panel of size 2.54 M x 1.525 M generating 2040 W (EOL), two 24 AH NiCd batteries for eclipse support
Stabilization3 axis body stabilised in orbit using sensors, momentum and reaction wheels, magnetic torquers and eight 10 N & 22N reaction control thrusters.
Propulsion440 N Liquid Apogee Motor with MON - 3 and MMH for orbit raising
Payload
  • Six upper extended C - band transponders
  • Five lower Ku band transponders with regional beam coverage
  • One lower Ku band National beam transponder with Indian main land coverage
  • Ku beacon
  • 12 C band high power transponders with extended coverage, covering southeast and northwest region apart from Indian main land using 63 W LTWTAs
Launch dateSeptember 20, 2004
Launch siteSHAR, Sriharikota, India
Launch vehicleGSLV-F01
OrbitGeostationary (74oE longitude)
Mission Life7 Years (minimum)

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