Fundamentals of Astrodynamics and Applications
|CONSTS||Constants WGS-84, JGM-2, etc.|
|ASTIOD||Initial orbit determination|
|ASTREDUC||Reduction of coordinates|
|SGP4DC||SGP4 Orbit Determination routines|
Several data files are needed for some of the files.
|NUT85.DAT||Nutation coefficients for planetary 85|
|NUTATION.DAT||Nutation coefficients for 106|
|ATMOSEXP.DAT||Sample exponential atmosphere values|
|TESTASTF.DAT||Input for sample test program|
|SENSOR.DAT||Sensor sample values|
|GEOS1.IN||DC input test 1|
|GEOS2.IN||DC input test 2|
|GEOS5.IN||DC input test 5|
|GEOS1.TXT||DC sample output results 1|
|GEOS2.TXT||DC sample output results 2|
|GEOS5.TXT||DC sample output results 5|
|SGP4-VER.TLE||Sample SGP4 test cases|
Cross-Reference of Available Functions [Excel spreadsheet]
Within each file there are specific routines to accomplish various operations. Effort has been taken to use similar names and function scopes, although there are some differences based on language features. The SOFTWARE worksheet discusses the specific routines that are available within each larger technical area.
The ALGORITHMS worksheet lists which routines are available (MATLAB).
The EXAMPLES worksheet lists what MATLAB scripts will perform the example exercises in the text. Many are complete, but a few remain to finish all the examples in the text.
The test program is a simple program that executes the input/output operations of each subroutine in that package. There isn't anything fancy about it. It's just intended to be a quick check of the answers. The TESTASTF.DAT file contains my results using the codes. Additional work is needed to update this file, but itís a start.
STK Scenarios from Chapter 6 (5,592,553 bytes)
These scenarios are useful to see the various transfers in 3-D. Other scenarios are in various stages of development.
Questions and comments:
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Dr. T.S. Kelso
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