User Programs

Description

This data set was assembled at NSSDC using various Magsat user computer programs provided by the principal investigator. The data set is on EBCDIC magnetic tape created on an IBM 360 computer. The tape contains 38 files. File 1 contains subroutine RDCHRN which reads chronicle tapes. File 2 contains subroutine TIB that reads and prints Investigator-B tapes. Files 3 and 4 contain orbit retrieval and time conversion subroutines (see data set 79-094A-02C). File 5 contains the Business and Technological Systems program, FIT, that generates field models from data. File 6 contains the FDG program that computes the geomagnetic field from spherical harmonic coefficients. Files 7-11 contain the GSFC Equivalent Source Magnetic Anomaly program which models the satellite geomagnetic anomaly observations by using sets of magnetic dipoles at the surface of a spherical earth. Files 12, 13 and 14 contain the GSFC DBCOM program and data input for computing magnetic anomalies from sets of dipoles. Files 15-33 are programs (including subroutines) from the Purdue University package (see data set 79-094A-02D). File 34 contains input data for programs in files 15-33. File 35 contains the U.S. Geological Survey program, ADEPT, which determines depth to magnetic basement. File 36 contains the GSFC revision of Purdue program SPHERE. File 37 contains the MGST (6/80) geomagnetic field model coefficients and subroutine FIELD. File 38 contains the MGST (4/81-2) geomagnetic field model coefficients. For additional information see references given under NSSDC ID 79-094A-02A.