CHARGED-PARTICLE TELESCOPE EXPERIMENT ON CLEMENTINE

The charged-particle telescope (CPT) onboard the Clementine spacecraft measured the fluxes of energetic protons emitted in solar energetic p article events. Protons in the energy range from 10 to 80 MeV were of greatest interest for radiation effects such as total dose and single event upsets. Energetic electrons were also of interest for spacecraft charging and their contribution to total dose. The lower-energy CPT e lectron channels (25-500 keV) were mainly of geophysical interest. Whi le orbiting the moon, the CPT observed the wake created by the moon wh en it blocked the flow of energetic particles in the magnetotail regio n. The CPT provided opportunities to observe energetic electron bursts during magnetic storms and magnetospheric substorms. CPT data are par ticularly useful in multispacecraft studies of interplanetary disturba nces and their interaction with the magnetosphere. The proton channels on the CPT provided data on solar energetic protons and storm-time pr otons associated with the passage of an interplanetary shock at 0903 U T on Feb. 21, 1994. Results are compared with those from GOES-7, SAMPE X, and GEOTAIL.