Brief Description:
The Short Orbital Flux Integration Program (SOFIP) is a computer code that has
been developed to evaluate the space radiation environment encountered by
geocentric satellites. It produces for a given input trajectory a composite
integral orbit spectrum of either protons or electrons. Additional features
include calculation of exposure index, peaks per orbit, percent time in
electron trapping zones differential spectrum, and solar proton fluences (using
SOLPRO). SOFIP is a structured, modularized code, which can perform all the
functions of larger and more complex programs, if the correct modules are
used. Care should be taken to use the correct epoch (1965 for solar minimum
and 1970 for maximum) for the geomagnetic field in the calculation of magnetic
field strength B and L-value. B/Bo and L are needed to determine trapped
particle fluxes with the help of the electron (AE) and proton (AP) models.
Otherwise, erroneous fluxes may result at low altitudes.
Availability: On tape (NSSDC ID #PT-15A)
References:
E. G. Stassinopoulos, J. J. Hebert, E. L. Butler, and J. L. Barth, SOFIP: A
Short Orbital Flux Integration Program, NSSDC 79-01, Greenbelt, Maryland,
1979.
Go to the Magnetospheric Models index Go to the Space Physics Models page
![[Logo]](/logo/nssdc_logo_sm.gif){kind=logo}