ANUSAT - Anna University Satellite

Launched on 20th April, 2009 


  • Mass - 38 Kg
  • Size - 600 mm x 600 m x 600 mm cube
  • Solar Array - Body Mounted Panels with GaAs Cells
  • Battery - Li Ion
  • Telecommand - FSK/AM 100 bps 149.522 MHz Carrier
  • Telemetry - PCM/PSK/PM 512 bps 137.4 MHz Carrier
  • Primary Payload - Store and Forward Data Communication FSK 1.2Kbps
  • Auxiliary payloads - Technology Validation of GPS Receiver, Mems Magnetometer and Mems Gyroscope
  • Attitude Control - Spin stabilized with spin axis orientation using magnetic torquer
  • Spin Rate - 8 ± 0.5 rpm
  • Spin Axis Orientation - ± 3° Sun/Orbit normal
  • Orbit - 547 km, 41° inclination to polar orbit with 120 minutes orbit period
  • Visibility -10 Minutes per pass , 4 pass per day
  • Sun Sensor - ± 75° with 0.5° resolution
  • Magnetometer - ± 60,000 Gamma with 500 gamma resolution.
  • Torquers - 4.5 Am sq capacity 4 Nos. (2 in Z-axis, 1 in x-axis and 1 in y-axis)
  • Launch - PSLV C-12
  • Life Time - 2 years

Welcome to Anusat

Evolution of Anusat

     The Anna University Microsatellite, or ANUSAT, is an Indian student built microsatellite. Anusat is the first satellite designed and developed by an Indian University and it is also the first satellite in India to be built and operated by any organization other than ISRO. It carries a primary store and forward payload and auxiliary technology demonstration payloads. It was successfully launched aboard PSLV-C12, along with RISAT-2, from the Second Launch Pad at the Satish Dhawan Space Centre. The launch was carried out at 01:15 GMT (06:45 IST) on 20 April 2009. The satellite's development was sponsored by the Indian Space Research Organization (ISRO).

     Anusat is a 38kg cube shaped (60x60x60 cm3) spin-stabilized satellite operating at 40W power (body mounted GaAs cells). All communications to and from Anusat are carried out in the VHF/UHF band. It is orbiting ata height of 547 kms with a 41 degree inclination and a period of 120 minutes, and is visible over Chennai four times a day for a duration of about 600 seconds each.

     The main objective set forth for the Anusat Project was to enable students (and faculty) of Anna University to gain experience in the design, building, testing and operation in orbit, of a complete microsatellite. Working under the overall guidance of ISRO and initiated primarily with the intention of providing hands on training to students on the various aspects of space science and technology, Anusat is the culmination of five years of prolonged and intense collaborative effort of students and faculty of the CEG ad MIT campuses of Anna University.

 Copyright ©2009 Anna University Chennai
Best Viewed with Mozilla Firefox