Cool Gas Thruster
Flight-proven cold-gas thruster (0.73–0.82 N He/N2, 0.105 kg, 80,000 starts) for precise spacecraft attitude control, flown on KOSMOS and RESURS-DK.
Technical specifications
- Purpose
- Precise multi-impulse spacecraft attitude orientation (KOSMOS and RESURS-DK spacecraft)
- Flight qualification
- Letter O — flight use
- Customization
- Can be adapted to customer requirements
- Working medium
- Helium / Nitrogen
- Nominal thrust
- 0.733 N (He) / 0.819 N (N2)
- Nominal specific impulse (steady state)
- 1657.9 m/s (He) / 716.1 m/s (N2)
- Nominal inlet pressure
- 1.765 MPa
- Inlet operating pressure
- 1.47–1.96 MPa
- Total firing time
- Up to 10,000 s
- Cycle life (starts)
- Up to 80,000
- Nozzle expansion ratio
- 64
- Operating voltage
- 27 V
- Mass
- Not over 0.105 kg
- TRL
- 9 (flight-proven)
About
The Cool Gas Thruster is a cold-gas thruster designed for precise multi-impulse attitude orientation of spacecraft, using helium or nitrogen as working medium. It produces 0.733 N (He) or 0.819 N (N2) nominal thrust with specific impulses of 1657.9 m/s (He) and 716.1 m/s (N2). With a mass of only 0.105 kg, 80,000-start cycle life, and 10,000 s total firing time, it was flight-qualified (Letter ‘O’) and flew on KOSMOS and RESURS-DK spacecraft.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.
