nGas-Plasma
Environment-Dual Frequency Experiment (OGPE)
nGamma Ray Burst
Detector (OGBD)
nNeutral Mass
Spectrometer (ONMS)
nElectric Field
Detector (OEFD)
nUltraviolet
Spectrometer (OUVS)
nInfrared Radiometer
(OIR)
nSolar Wind Plasma
Analyzer (OPA)
nAtmospheric Drag
(OAD)
nCelestial Mechanics
(OCM)
nInternal Density
Distribution (OIDD)
nElectron Temperature
Probe (OETP)
nRadar Mapper (ORAD)
nCloud
Photopolarimeter (OCPP)
nMagnetometer (OMAG)
nIon Mass Spectrometer
(OIMS)
nRadio Occultation
(ORO)
nRetarding Potential
Analyzer (ORPA)