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API with experi API with experimental atmospheric bands Brown calculated cards changes chosen CIRCULAR ORBITS Columns constructed contours converted data at L data cards decay dependence described detailed detector differential discussed distribution function EARTH RADII electron map AEl energy range energy spectrum equator experi experimental data exponential field Force format gauss Figure Geomagnetically Geophys given INCLINATION inner zone interval July L values Laboratory llll lllllll low altitudes magnetic Mcllwain measurements mental data model environment model spectrum NASA obtained omnidirectional flux orbital integrations parameter particle period pitch angle distributions plot points present produced proton map API Reference Reference Reference region Relay represent satellite Scintillator selected Sept shown in Figure Solid Space spectral spectrum TECHNICAL threshold trapped radiation unidirectional University values various versus
Page 29 - On the relationship between the unidirectional and omnidirectional flux of trapped particles on a magnetic line of force, J.
Page 31 - ... Trapped Particles," J. Geophys. Res. 66:3681-4078, 1963. 30 30. Bostrom, CO, Zmuda, AJ, and Pieper, GF, "Trapped Protons in the South Atlantic Magnetic Anomaly During July - December 1961, 2. Comparisons with NERV and Relay I and the Energy Spectrum," J. Geophys. Res. 70:2035-2044, 1965. 31. Freden, SC, and Paulikas, GA, "Trapped Protons at Low Altitudes in the South Atlantic Anomaly," J. Geophys. Res. 69:1259-1270, 1964. 32. Valerio, J., "Protons from 40 - 110 MeV Observed in Injun 3,
Page 26 - At the higher energies the opposite effect occurs on the basis of the data of Imhof and Smith (Reference 34) and the recent measurements of Freden, Blake, and Paulikas (Reference 35).
Page 24 - The model environments described in this section will be for energies above 4 MeV. The lower energy protons which extend throughout the outer zone will be treated at a later date. The satellite data that have been used in constructing the proton maps are given in Tables 6 and 7. We shall refer to the data by the code name given in these tables. For certain energy intervals and for large regions of space the integral spectrum can be represented by an exponential spectrum. To illustrate this point...
Page 31 - Proton Intensities and Energy Spectrums in the Inner Van Allen Belt," J. Geophys. Res. 69:91-100, 1964. 35. Freden, SC, Blake, JB, and Paulikas, GA, "Spatial Variation of the Trapped Proton Spectrum," J. Geophys. Res. 70:3111-3116, 1965. 36. Garmire, G., "Geomagnetically Trapped Protons with Energies Greater than 350 MeV,
Page 55 - ... INTEGRATIONS -API OMNIDIRECTIONAL FLUX, PROTONS/cm2-DAY ENERGY ABOVE 34 MeV CIRCULAR ORBITS . 0° INCLINATION • 30° INCLINATION • 60° INCLINATION , 90° INCLINATION 1200 2400 3600 ALTITUDE (n mi) 4800 6000 CIRCULAR ORBITAL INTEGRATIONS -AP2 OMNIDIRECTIONAL FLUX, PROTONS/cm2-DAY ENERGY ABOVE 15 MeV CIRCULAR ORBITS 0°...
Page 3 - ... the converted data. An eyeball fit is made from these plots to form the F(B, L) for the map. It has been found necessary to draw the BL flux map representation to show some of the inconsistencies that developed in selecting the B dependence. An iteration between the BL map and the FB plot produced a smooth representation in both systems that is consistent with the data. At some time in the future it may be feasible to obtain analytical fits but at present we feel the eyeball method is adequate...