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 [email protected] on or before 25 March 2022.
Indian Mini Satellite-1 (IMS-1) Bus Specifications
| Stability | 3-axes stabilised small satellite (Bus + P/L) of 100 kg Class |
| Structure | Size 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 Life | 2 years |
| Payload Mass | 30 Kg |
| BDH | 32 Mbps |
| Interfaces | LVDS, 1553, Standard TM/TC Interface |
| Solar Panel | Solar Array consists of two wings, each having one panel of size 0.915 x 0.83 m2 |
| Power | 330 W (EOL with one string failure) |
| Battery | Lithium ion battery of 27.2 Ah capacity |
| Attitude Sensors | Magnetometer -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 |
| SSR | 32 Gb |
| Thermal | Thermistors – 48, FTS- 16, PRTs – 10, Thermocouples – 2, On-board heaters-28 |