Aerojet MR-103G
Exact Aerojet MR-103G monopropellant hydrazine spacecraft thruster variant within the broader MR-103 family. NASA identifies the MR-103 series as flight-proven 1 N hydrazine thrusters, explicitly identifies MR-103G in qualification testing, and documents eight MR-103G thrusters in the Radiation Belt Storm Probes propulsion subsystem. This record preserves the exact variant and technical values without inferring an additional spacecraft installation.
Identity
- Aliases
- MR-103GAerojet MR-103GAerojet Rocketdyne MR-103G
- Domains
- spaceflight
- Identity Level
- variant
- Kind
- chemical-thruster
- Name
- Aerojet MR-103G
- Status
- active
Details
- Description
- Exact Aerojet MR-103G monopropellant hydrazine spacecraft thruster variant within the broader MR-103 family. NASA identifies the MR-103 series as flight-proven 1 N hydrazine thrusters, explicitly identifies MR-103G in qualification testing, and documents eight MR-103G thrusters in the Radiation Belt Storm Probes propulsion subsystem. This record preserves the exact variant and technical values without inferring an additional spacecraft installation.
- Developers
- Family
- Manufacturers
- Rocket Specs
- Vacuum Specific Impulse S
- 215
- Vacuum Thrust Kn
- 0.001
Links
Assets & Meta
- Creation Time
- August 6, 2026 at 20:39:46 UTC
- Updated Time
- August 22, 2026 at 10:58:23 UTC
Other
- Sources
- Accessed Date
- 2026-08-06
- Note
- NASA SmallSat Institute reference identifies the MR-103 series as flight-proven 1 N hydrazine thrusters and distinguishes MR-103H on New Horizons.
- Publisher
- NASA
- Title
- In-Space Propulsion State of the Art
- Accessed Date
- 2026-08-06
- Note
- NASA report explicitly identifies Aerojet MR-103G as a 0.2 lbf monopropellant hydrazine thruster used in qualification testing.
- Publisher
- NASA Technical Reports Server
- Title
- Confidence testing of Shell 405 and S-405 catalysts in a monopropellant hydrazine thruster
- Accessed Date
- 2026-08-06
- Note
- NASA mission reference describes eight Aerojet MR-103G thrusters in the hydrazine propulsion subsystem and records flight heritage including Iridium and Lockheed Martin A2100 spacecraft.
- Publisher
- NASA Goddard Space Flight Center
- Title
- Radiation Belt Storm Probes - Observatory and Environments
- Accessed Date
- 2026-08-20
- Note
- NASA propulsion trade table identifies Hydrazine MR-103G as a 1.0 N reaction-control thruster with 215 s specific impulse; stored as 0.001 kN and 215 s without asserting a vehicle installation.
- Publisher
- NASA
- Title
- NASA/TM-2020-220152