Dawn hydrazine reaction-control system
Dawn's hydrazine reaction-control system is an integrated spacecraft attitude-control subsystem comprising twelve 0.9-N hydrazine thrusters in two independent six-thruster strings. NASA describes its use for attitude control and reaction-wheel desaturation; the exact thruster model is not identified here.
Identity
- Aliases
- Dawn RCSDawn hydrazine RCS
- Domains
- spaceflight
- Identity Level
- integrated-system
- Kind
- integrated-propulsion-system
- Name
- Dawn hydrazine reaction-control system
- Status
- historical
Details
- Description
- Dawn's hydrazine reaction-control system is an integrated spacecraft attitude-control subsystem comprising twelve 0.9-N hydrazine thrusters in two independent six-thruster strings. NASA describes its use for attitude control and reaction-wheel desaturation; the exact thruster model is not identified here.
- Propellants
- hydrazine
Links
Assets & Meta
- Creation Time
- September 7, 2026 at 21:30:52 UTC
- Updated Time
- September 7, 2026 at 21:30:52 UTC
Other
- Search Name
- Dawn hydrazine reaction-control system Dawn RCS Dawn hydrazine RCS
- Sources
- Accessed Date
- 2026-09-07
- Note
- NASA identifies Dawn's twelve 0.9-newton hydrazine thrusters as the reaction control system for maintaining and modifying spacecraft attitude.
- Publisher
- NASA Science
- Title
- Navigation - Dawn Mission
- Accessed Date
- 2026-09-07
- Note
- NASA technical overview describes the hydrazine reaction-control system as two independent strings, each with six 0.9-N thrusters, used for attitude control and reaction-wheel desaturation.
- Publisher
- NASA
- Title
- Dawn spacecraft overview
- Accessed Date
- 2026-09-07
- Note
- JPL describes Dawn hydrazine jets as attitude-control actuators used with reaction wheels and ion propulsion, and records the onboard hydrazine supply.
- Publisher
- NASA Jet Propulsion Laboratory
- Title
- Dear Dawnizens of the Solar System