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A model of the trapped electron population for solar minimumA model is presented of the trapped electron environment of solar minimum conditions. Solar maximum models have been presented for the inner radiation zone (AE-5 1967), and for the outer radiation zone (AE-4 1967). The present solar minimum model consists of an inner zone model (AE-5 1975 Projected) with an epoch of 1975, and an outer zone model with an epoch of 1964. With only minor modifications this latter model is identical to the AE-4 1964 model presented previous. The model, however, has not previously been issued in computer form. AE-4 1964 is based upon satellite data, while the inner zone solar minimum model AE-5 1975 Projected consists entirely of extrapolations from AE-5 1967. While the two components of the solar minimum model have epochs 11 years part, it is assumed that any differences between the successive solar minima are smaller than the model error, and the complete model is associated with an epoch of 1975.
Document ID
19740018161
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Teague, M. J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Vette, J. I. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
September 3, 2013
Publication Date
April 1, 1974
Subject Category
Space Radiation
Report/Patent Number
NASA-TM-X-69909
NSSDC-74-03
Accession Number
74N26274
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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