The SRMSAT is the first mission of Team SRMSAT. The design is made robust enough to support different payload and it is also the mission’s aim to make the SRMSAT as a nanosatellite bus to support future missions. The satellite’s scientific mission was to monitor greenhouse gases above the Indian subcontinent. The development of SRMSAT cost around 1.5 crore rupees. SRMSAT was launched aboard PSLV C-18 at Indian Space Research Organisation (ISRO)’s Satish Dhawan Space Centre at Sriharikota in October 2011. The launch was a multi-payload mission shared with Megha-Tropiques, VesselSat-1 and Jugnu.
SRMSAT weight 10.4 kilograms and measures 28cm X 28cm X 28cm.
The mission has a design life of one year, but is still functional after more than 5 years.
SRMSAT is controlled by a 28.8 MHz Atmel microcontroller. Communication is via Ultra high frequency (UHF), with a downlink at 437.5 MHz providing a data rate of 2.4 kbit/s and an uplink at 145.9 MHz with a 1 kbit/s data rate. Attitude control is via solar cell management system (SCDM), an on-board magnetometer and Global Positioning System (GPS) receiver that provide data for magnetorquer coils which interact with the Earth’s magnetosphere to change the satellite’s orientation.
|RA of A. Node||106.259|
|Argument of Perigee||99.676|
|Revs per day||14.10196386|
|Period||1h 42m 06s (102.10 min)|
|Semi-major axis||7 237 km|
|Perigee x Apogee||850 x 867 km|
|BStar (drag term)||0.000000000 1/ER|
To track the satellite’s real time position, click here.