Comparison of Orbit Propagators in the Research and Development Goddard Trajectory Determination System (R & D GTDS). Part I: Simulated Data
Fonte, Daniel J., Jr.
Danielson, D. A.
Dyar, W. R.
MetadataShow full item record
This paper evaluates the performance of various orbit propagation theories for arti cial earth satellites in di erent orbital regimes Speci cally R& D GTDS s Cowell numerical technique DSST semianalytical technique SGP , SGP4, and Brouwer-Lyddane (analytic techniques) orbit propagators are compared for decaying circular (~200 km perigee height ), low altitude circular (590 km perigee height ), high altitude circular (1340 km perigee height), Molniya and geosynchronous orbits. All test cases implement a one orbital period differential correction fit to simulated data derived from a Cowell truth trajectory. These fits are followed by a one orbital period predict with the DC solve-for vector. Trajectory comparisons are made with the Cowell "truth " trajectory over both the fit and predict spans . Computation time and RMS errors are used as comparison metrics. The Unix-based version of R& D GTDS ( NPS SUN Sparc 10) is the test platform used in this analysis .
Showing items related by title, author, creator and subject.
Comparison of Orbit Propagators in the Research and Development Goddard Trajectory Determination System (R & D GTDS). Part I: Simulated Data Neta, Beny; Fonte, Daniel J.; Sabol, Chris; Danielson, D.A.; Dyar, W.R. (1995-08);This paper evaluates the performance of various orbit propagation theories for artificial earth satellites in different orbital regimes. Specifically, R&D GTD's Cowell (numerical techniques) orbit propagators are compared ...
Pollock, Kenneth R. (Monterey, California. Naval Postgraduate School, 1994-09);The MK92 Fire Control System (FCS) is the heart of shipboard weapon systems found aboard U. S. Oliver Hazard Perry class FFGs. This system, based on 1970's technology, frequently requires extensive troubleshooting and ...
Neta, Beny; Danielson, D. A.; Ostrom, Sara; Brewer, Susan K. (Naval Postgraduate School, Monterey, CA., 1994);In this paper we discuss the benefit of par allel computing in propagating orbits of ob jects. Several analytic methods are now in use operationally . We will discuss three such schemes. We demonstrate the benefit ...