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Abstract:
In 2006, an updated version of SGP4 was presented for general use. The propagation routine relies
on Two-Line Element (TLE) set data provided by the U.S. Government for several decades. Many
independent organizations have access to observations, or ephemerides developed with other
programs. Because the TLE is a compact means to obtain modestly accurate and fast calculations, it is
desirable to have an orbit determination package that is compatible with the aforementioned code.
This paper presents the code, test cases, and discussion of computer code to produce TLE data from
an externally derived ephemeris. Initial code is also developed for processing raw observations.
Citation:
Vallado, David A., and Paul Crawford. 2008. SGP4 Orbit Determination. Paper AIAA 2008-6770 presented at the AAS/AIAA Astrodynamics Specialist Conference, August 18-21. Honolulu, HI, accessible at https://comspoc.com/Resources/Content/Private/C-20220425T153410/Paper/AIAA_2008-6770%20SGP4%20Orbit%20Determination.pdf.
