SOHO 16 x 4.5 N hydrazine propulsion system
SOHO uses a monopropellant hydrazine blowdown propulsion system with one large hydrazine tank and sixteen 4.5 N thrusters arranged as two branches of eight. The branches provide delta-V and roll, yaw, and pitch control for the Sun-Earth L1 observatory.
Identity
- Aliases
- SOHO hydrazine propulsion subsystemSOHO sixteen-thruster blowdown systemSOHO L1 stationkeeping thrusters
- Domains
- spaceflight
- Identity Level
- integrated-system
- Kind
- integrated-propulsion-system
- Name
- SOHO 16 x 4.5 N hydrazine propulsion system
- Status
- historical
Details
- Description
- SOHO uses a monopropellant hydrazine blowdown propulsion system with one large hydrazine tank and sixteen 4.5 N thrusters arranged as two branches of eight. The branches provide delta-V and roll, yaw, and pitch control for the Sun-Earth L1 observatory.
- Propellants
- hydrazine
Links
Assets & Meta
- Creation Time
- September 8, 2026 at 09:33:38 UTC
- Updated Time
- September 8, 2026 at 09:33:38 UTC
Other
- Search Name
- SOHO 16 x 4.5 N hydrazine propulsion system SOHO hydrazine propulsion subsystem SOHO sixteen-thruster blowdown system SOHO L1 stationkeeping thrusters
- Sources
- Accessed Date
- 2026-09-08
- Note
- NASA Technical Reports Server describes the SOHO monopropellant blowdown propulsion system as one large hydrazine tank with sixteen 4.5 N thrusters divided into two branches of eight, providing delta-V and roll, yaw, and pitch control.
- Publisher
- NASA Technical Reports Server
- Title
- The SOHO Solar and Heliospheric Observatory
- Accessed Date
- 2026-09-08
- Note
- ESA describes the SOHO service and payload modules and places the propulsion subsystem, tank, and thruster masts in the service module; hydrazine thrusters provide Sun acquisition and attitude support.
- Publisher
- European Space Agency
- Title
- The SOHO Spacecraft
- Accessed Date
- 2026-09-08
- Note
- The SOHO mission site identifies the observatory and its onboard hydrazine thrusters in the spacecraft and launch-vehicle overview.
- Publisher
- NASA / SOHO
- Title
- SOHO Launch Vehicle and Spacecraft