MeV electron populations as measured on DMSP

Conference · Wed Dec 01 04:00:00 EST 1993 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6837764

Mullen, E G; Gussenhoven, M S ^[1]

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1. Geophysics Directorate, Hanscom AFB, MA (United States). Phillips Lab.

A dosimeter flown on the DMSP F7 spacecraft during solar minimum from January 1984 through October 1987 measured electron fluxes and dose behind four different dome thicknesses. The spacecraft was in an 840 km, circular, polar orbit with a 101 minute orbit period. Using sophisticated display and analysis software developed for the CRRES program, the DMSP data base was re-examined. Displays of the data set uncovered previously unseen phenomena to include > 2.5 MeV electron penetrations to low magnetic latitudes during magnetospheric storm periods. During three periods (1 August 1984, 8--9 February 1986 and 12 September 1986) the > 2.5 MeV electrons were measured penetrating all the way to the magnetic equator. This is the first known report of these particles at the magnetic equator at 840 km. The particle penetrations occurred during periods of high magnetic activity as indicated by K[sub p] and other indices.

• OSTI ID: 6837764
• Report Number(s): CONF-930704--
• Conference Information: Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 40:6Pt1
• Country of Publication: United States
• Language: English

Related Subjects

661320* -- Auroral
Ionospheric
& Magnetospheric Phenomena-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
EARTH ATMOSPHERE
EARTH MAGNETOSPHERE
ELECTRON DENSITY
MAGNETIC STORMS
RADIATION BELTS
SATELLITES
SUDDEN COMMENCEMENTS