ISRO Looks to Transfer Mini Satellite Bus to Private Sector

IMS-1 bus (Credit: ISRO)

As part of its effort to commercialize the nation’s space program, the Indian Space Research Organisation is looking to transfer a small satellite bus to the private sector. The notice for transferring the Indian Mini Satellite-1 bus is below.

Interest Exploratory Note

UR Rao Satellite Centre (URSC) of Indian Space Research Organisation (ISRO) has developed small satellite platform which would enable low cost access to space by providing dedicated platform for payloads for earth imaging, ocean and atmospheric studies, microwave remote sensing and space science missions with a quick turnaround time.

Department of Space has authorised NSIL for Technology Transfer of IMS-1 Satellite Platform to suitable entrepreneurs/industry in India. Interested Parties may please fill the enclosed form and send by email to on or before 25 March 2022.

Indian Mini Satellite-1 (IMS-1) Bus Specifications

Stability3-axes stabilised small satellite (Bus + P/L) of 100 kg Class
StructureSize 600 (Y) x 552 (R) x 600 (P) mm3
Pointing Accuracy±0.1° (3σ) about all axes
Drift Rate±7.5 x 10-04°/s (3σ) about all axes
Nominal Mission Life2 years
Payload Mass30 Kg
BDH32 Mbps
InterfacesLVDS, 1553, Standard TM/TC Interface
Solar PanelSolar Array consists of two wings, each having one panel of size 0.915 x 0.83 m2
Power330 W (EOL with one string failure)
BatteryLithium ion battery of 27.2 Ah capacity
Attitude SensorsMagnetometer -1 No., 4 PI Sensors, micro Star Sensors, micro-IRU
Reaction Control System
Magnetic Torquers (2nos. of 20 A-m2)
Reaction Wheels (4 Nos. of 1 Nm-s @ 8000 RPM & 0.02 Nm)
Thruster of 1N-1No.
Tank- 7.5 litre Volume
SSR32 Gb
ThermalThermistors – 48,
FTS- 16,
PRTs – 10,
Thermocouples – 2,
On-board heaters-28