Two-Site Optical Observation and Initial Orbit Determination for Geostationary Earth Orbit Satellites

Details Two-Site Optical Observation and Initial Orbit Determination for Geostationary Earth Orbit Satellites Two-Site Optical Observation and Initial Orbit Determination for Geostationary Earth Orbit Satellites

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010jass...27..337c&link_type=abstract

Journal of Astronomy and Space Sciences. Vol. 27, no. 4, 337-343

Astronomy and Astrophysics

Astronomy

Two-Site Observation, Initial Orbit Determination

Scientific paper

Optical observation system provides angle-only measurement for orbit determination of space object. Range measurement can be directly acquired using laser ranging or tone ranging system. Initial orbit determination (IOD) by using angle-only data set shows discrepancy according to the measurement time interval. To solve this problem, range measurement data should be added for IOD. In this study, two-site optical observation was used to derive the range information. We have observed nine geostationary earth orbit satellites by using two-site optical observation system. The determination result of the range shows the accuracy over 99.5% compared to the results from the satellite tool kit simulation. And we confirmed that the orbit determination by the Herrick-Gibbs method with the range information obtained from the two-site observation is more accurate than the orbit determination by Gauss method with the one-site observation. For more accurate two-site optical observation, a baseline should satisfy an optimal condition of length and more precise observation system needed.

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