CRSCosmic Ray SubsystemEnergetic nuclei and electrons in cosmic raysswitched offactiveStatus verified 2026-08-11
Science instruments
The original experiments studied planets, fields, particles and plasma. Only a few low-power instruments continue today; the table does not imply automatic synchronisation.
LECPLow-Energy Charged ParticlesLower-energy ions, electrons and cosmic raysswitched offhistorically completedMAGMagnetometerMagnetic-field strength and directionactiveactivePWSPlasma Wave SubsystemElectron plasma waves and plasma densityactiveactivePLSPlasma ScienceProperties of low-energy plasma particlesfailedswitched offISSImaging Science SubsystemWide-angle and narrow-angle planetary imaginghistorically completedhistorically completedIRISInfrared Interferometer SpectrometerAtmospheric composition and thermal balancehistorically completedhistorically completedPPSPhotopolarimeter SubsystemPolarisation and structure of atmospheres and ringsfailedfailedPRAPlanetary Radio AstronomyPlanetary radio emissionshistorically completedhistorically completedUVSUltraviolet SpectrometerUltraviolet spectra of atmospheres and interplanetary spaceswitched offswitched offActive on 11 August 2026: Voyager 1 — MAG, PWS; Voyager 2 — CRS, MAG, PWS. Sources: current NASA announcements and the spacecraft design page.
Statuses distinguish active instruments, intentionally switched-off instruments, historically completed experiments and technical failures. The reason and date are available in each badge’s description.