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GSAT-2

Launch Date: 08.05.2003

GSAT-2

GSAT-2 was an experimental communication satellite launched onboard the second developmental test flight of GSLV onMay 8, 2003. GSAT-2 was the first spacecraft to use I-2000 bus platform.The satellite carried four C band transponders, two Ku band transponders and a Mobile Satellite Service (MSS) payload operating in S band and C band for forward link and return link respectively. It also carried four scientific experimental payloads - Total Radiation Dose Monitor (TRDM), Surface Charge Monitor (SCM),Solar X-ray Spectrometer (SOXS) and Coherent Radio Beacon Experiment (CRABEX).

Mission

Communication

Platform System

I-2K (I-2000) Bus

Spacecraft Power

Solar Array:1380 Watts
Batteries: Ni-Cd (24 Ah)

Lift-off Mass

1823 Kg

Stabilization

3-axis body stabilized in orbit using momentum/reaction wheels, magnetic torquers, sensors and bipropellant thrusters besides normal sensors, fine sun sensor used for pointing SOXS payload towards the Sun

Launch date

May 8, 2003

Payload

4 C band transponders,2 Ku band transponders, MSSpayload (S-band forward,C-band return), TRDM, SCM,SOXS, CRABEX

Launch site

SHAR, Sriharikota, India

Launch vehicle

GSLV–D2

Orbital Life

8 Years

Orbit

Geostationary orbit (48oE longitude)

Achievements

1.Design of I-2K bus cateringfrom small to medium levelGEO based communicationsatellite applications

2.Excellent performance ofthe entire payload as well as the first I-2K bus

3.Two indigenouslydeveloped 24 Ah Ni-Cdbatteries were used for thefirst time in a GEOSATmission

4.Very good performance ofindigenous heat pipes forthermal control

5.Assessment of the potentialand growth scope ofstrategic services in C, Kuand S bands

6. The SOXS payload providedvery valuable data onradiation from the Sun andmany papers werepublished based on the data

 

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