OSIRIS-REx / OSIRIS-APEX propulsion subsystem
NASA documents the continuing OSIRIS-REx/OSIRIS-APEX spacecraft propulsion subsystem as a 28-thruster hydrazine system with four functional groups: four MR-107S main engines, six MR-106L trajectory-correction thrusters, sixteen MR-111G attitude-control thrusters, and two MR-401 low-thrust reaction-engine-assembly thrusters. The component model families and functions are preserved here as one integrated spacecraft propulsion identity; this record does not create separate component installations.
Identity
- Aliases
- OSIRIS-REx propulsion systemOSIRIS-APEX propulsion systemOSIRIS-REx 28-thruster propulsion
- Domains
- spaceflight
- Identity Level
- integrated-system
- Kind
- integrated-propulsion-system
- Name
- OSIRIS-REx / OSIRIS-APEX propulsion subsystem
- Status
- active
Details
- Description
- NASA documents the continuing OSIRIS-REx/OSIRIS-APEX spacecraft propulsion subsystem as a 28-thruster hydrazine system with four functional groups: four MR-107S main engines, six MR-106L trajectory-correction thrusters, sixteen MR-111G attitude-control thrusters, and two MR-401 low-thrust reaction-engine-assembly thrusters. The component model families and functions are preserved here as one integrated spacecraft propulsion identity; this record does not create separate component installations.
- Propellants
- hydrazine
Links
- Official Url
- https://science.nasa.gov/mission/osiris-apex/
Assets & Meta
- Creation Time
- September 7, 2026 at 22:03:07 UTC
- Updated Time
- September 7, 2026 at 22:03:07 UTC
Other
- Search Name
- OSIRIS-REx / OSIRIS-APEX propulsion subsystem OSIRIS-REx propulsion system OSIRIS-APEX propulsion system OSIRIS-REx 28-thruster propulsion
- Sources
- Accessed Date
- 2026-09-07
- Note
- NASA identifies the OSIRIS-REx spacecraft propulsion system as four MR-107S 222 N thrusters, six MR-106L, sixteen MR-111G, and two MR-401 thrusters, within its hydrazine propulsion discussion.
- Publisher
- NASA Small Spacecraft Systems Virtual Institute
- Title
- 4.0 In-Space Propulsion
- Accessed Date
- 2026-09-07
- Note
- The mission paper describes 28 spacecraft engines divided into four groups: main, trajectory-correction, attitude-control, and low-thrust reaction-engine-assembly engines, all fed from a central hydrazine tank.
- Publisher
- NASA Goddard Space Flight Center
- Title
- OSIRIS-REx: Sample Return from Asteroid (101955) Bennu
- Accessed Date
- 2026-09-07
- Note
- NASA PDS identifies the OSIRIS-REx propulsion system as 28 thrusters and records propulsion activity relevant to precise maneuvers, including the Bennu touch-and-go operation.
- Publisher
- NASA Planetary Data System
- Title
- OSIRIS-REx Propulsion Subsystem
- Accessed Date
- 2026-09-07
- Note
- NASA distinguishes the TCM, ACS, main-engine, and low-thrust reaction-engine-assembly groups and their maneuver functions.
- Publisher
- NASA Science
- Title
- OSIRIS-REx In Depth