Testing of the java astrodynamics toolkit propagator

David E. Gaylor, Richard G. Page, Kathryn V. Bradley

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations


The Java Astrodynamics Toolkit (JAT) is an open source software library of reusable software components for mission design, trajectory optimization, and simulation of navigation, guidance and control systems. This paper provides results of comparing various Earth orbit ephemerides created with JAT with those created using Analytical Graphics Inc.'s Satellite Tool Kit/High Precision Orbit Propagator (STK/HPOP) and a.i. solutions, Inc.'s FreeFlyer. Ephemerides produced using STK and FreeFlyer are also compared to each other. With careful attention to parameters and models, results show agreement of millimeter to meter level over several days. Differences are discussed including potential sources of error.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - AIAA/AAS Astrodynamics Specialist Conference, 2006
Number of pages11
StatePublished - 2006
Externally publishedYes
EventAIAA/AAS Astrodynamics Specialist Conference, 2006 - Keystone, CO, United States
Duration: Aug 21 2006Aug 24 2006

Publication series

NameCollection of Technical Papers - AIAA/AAS Astrodynamics Specialist Conference, 2006


OtherAIAA/AAS Astrodynamics Specialist Conference, 2006
Country/TerritoryUnited States
CityKeystone, CO

ASJC Scopus subject areas

  • General Engineering


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