The IIT Bombay Student Satellite Project is a landmark project taken up by IIT Bombay students. The objective of this project is to make IIT Bombay a respected centre for advancement in Satellite and Space Technology in the world. These Satellites could be test-beds for new technology that is being developed in the institute and also a method for space qualification.

'Pratham' is the first satellite under this project. The plan was to build a fully functional microsatellite which would then be launched by the Indian Space Research Organisation (ISRO). This is entirely a student initiative with mentorship provided by ISRO scientists and IIT Bombay Faculty. The satellite will fit in a 30.5cm X 33.5cm X 46.6cm cube and will weigh 10.15kg. excluding FE Ring.

For the relevance of our satellite to the student community, we will be transmitting satellite data when the satellite passes over India so that any interested university with a small ground station will not only be able to detect the beacon signal from our satellite but will also be able to measure TEC above their ground station. This is proposed to spread awareness among the student community about this exciting field. The Pratham Project presents a wonderful learning experience to the students of working on a real life multi-disciplinary complex system. A lot of importance is attached to learning, this is evident from the success criterion.

The Pratham Satellite

Tracking Pratham

The Ham community is very critical to the success of any satellite working in the amateur band. We are also looking forward to hearing from Hams around the world for beacon and telemetry reports.

Pratham has been assigned the Identifier - 41783 by NORAD. It can now be tracked using n2yo at

Here are the details required to track the satellite.

Beacon Telemetry
Frequency 145.98 MHz 437.455 MHz
Modulation CW Morse code FSK, AX.25
Data rate 35 wpm 1200 bps
EIRP 23 dbm 18 dbm
Region transmitted over Whole World India and France

Listen to one of the First Beacon signals received from Pratham


Please share with us the Downlink of Pratham received by you at or

The following is the TLE data for the satellite:

1 41785U 16059C 16271.69947962 .00004609 00000-0 88934-3 0 9999
2 41785 98.2049 329.2442 0030494 263.1090 96.7138 14.63229411 193

Technical Details at a Glance

Mission ObjectiveTo estimate Total Electron Count(TEC) over India and Paris with a resolution of 1km x 1km location grid
Payload InstrumentTwo monopole antennas transmitting at 145.98 MHz and 437.45 MHz
Structure Dimensions: 30.5cm X 33.5cm X 46.6cm
Mass: 10.15 kg
Side panels: Aluminum alloy (Al 6061)
Monopoles: 3
Sensors and ActuatorsGPS
RF CommunicationTransmission in the Amatuer Band
Antennas: Monopoles- Uplink (UHF),
Downlink (UHF) and Beacon (VHF)
Altitude670 Km
Downlink Frequency437.455MHz and 145.98MHz
Uplink Frequency 437.455 MHz
Power source Li-ion battery and 4 solar panels
Orbit Polar sun-synchronous, 670 km
Passage over India: around 11.30 IST
Mission Life 4 months

Ratnesh Mishra
Project Manager
Pratham, IIT Bombay Student Satellite Project
Office: +91-22-2576-4147

Manvi Dhawan
Project Manager
Pratham, IIT Bombay Student Satellite Project
Office: +91-22-2576-4147
Email id:-

  • Prof. K. Sudhakar
  • Shantanu Shahane
  • <>
  • Tushar Jadhav
  • <>
  • Sanyam Mulay
  • <>
  • Jhonny Santosh Jha
  • <>
  • Saptarshi Bandyopadhyay(Co-founder)
  • <>
  • Shashank Tamaskar(Co-founder)
  • <>
Prof. Hemendra Arya
Assistant Professor
Department of Aerospace Engineering,
Indian Institute of Technology Bombay

Prof. Prasanna M. Mujumdar
Assistant Professor
Department of Aerospace Engineering,
Indian Institute of Technology Bombay