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Juno dual-mode propulsion subsystem

NASA/JPL documents Juno's integrated dual-mode propulsion subsystem as a 645 N LEROS-1B bipropellant main engine using hydrazine and nitrogen tetroxide plus twelve monopropellant hydrazine reaction-control thrusters. The main engine supports major maneuvers and flushing burns; the reaction-control thrusters allow translation and rotation around three axes and support most trajectory-correction maneuvers.

Identity

Aliases
Juno propulsion subsystemJuno dual-mode propulsion systemJuno LEROS-1B propulsion
Domains
spaceflight
Identity Level
integrated-system
Kind
integrated-propulsion-system
Name
Juno dual-mode propulsion subsystem
Status
active

Details

Description
NASA/JPL documents Juno's integrated dual-mode propulsion subsystem as a 645 N LEROS-1B bipropellant main engine using hydrazine and nitrogen tetroxide plus twelve monopropellant hydrazine reaction-control thrusters. The main engine supports major maneuvers and flushing burns; the reaction-control thrusters allow translation and rotation around three axes and support most trajectory-correction maneuvers.
Propellants
hydrazinenitrogen tetroxide

Links

Assets & Meta

Creation Time
September 8, 2026 at 00:23:29 UTC
Updated Time
September 8, 2026 at 00:23:29 UTC

Other

Search Name
Juno dual-mode propulsion subsystem Juno propulsion subsystem Juno dual-mode propulsion system Juno LEROS-1B propulsion
Sources
  • Accessed Date
    2026-09-08
    Note
    NASA/JPL documents Juno's dual-mode propulsion subsystem, the 645 N LEROS-1B bipropellant main engine using hydrazine and nitrogen tetroxide, and twelve monopropellant reaction-control thrusters.
    Publisher
    NASA/JPL-Caltech
    Title
    Jupiter Orbit Insertion Press Kit — Spacecraft
  • Accessed Date
    2026-09-08
    Note
    NASA documents the main-engine and reaction-control-system functions and the four rocket-engine-module arrangement in the Juno propulsion system.
    Publisher
    NASA
    Title
    Jupiter Orbit Insertion Press Kit
  • Accessed Date
    2026-09-08
    Note
    NASA/JPL describes Juno's main-engine major-maneuver burn and trajectory-correction maneuvers using the attitude-control system.
    Publisher
    NASA/JPL-Caltech
    Title
    Jupiter Orbit Insertion — Mission Overview