Saral Satellite is composed of:

a spacecraft bus IMS-2 (Small Satellite Bus). This platform, developed by the Indian space agency ISRO, is designed for satellites in the range of about 500 kg at launch.

a payload developed by CNES composed of the following instruments:


An altimeter-radiometer AltiKa, (CNES contribution)
A DORIS system for precise orbit determination (CNES contribution)
A LRA (Laser Retro-reflector Array) instrument used for precise calibration of other POD instruments, through analysis of laser shots from the ground then reflected by the LRA mirrors (CNES contribution)
The ARGOS-3 instrument


Saral Satellite main features

Mass	350/400 kg platform: ~200 kg payload module: <165 kg
Total power	570 W platform: ~205 W payload: ~195 W
Size	0.98 m x 0.98 m x 2.6 m solar panels: 1.2 m x 1.4 m (2x)
Data rate S-band	64 kbits/s for telemetry, 4 kbits/s for telecommande
Mission lifetime	5 years for ARGOS 3 years for AltiKa

The satellite will be put into orbit by a PSLV vehicle supplied by ISRO, and launched from the main ISRO launch base, the Satish Dhawan Space Centre, SHAR SRIHARIKOTA (13°43.2N ; 80°13.8E), 100 km North from Chennai.