Orbit Determination with Angle-only Data from the First Korean Optical Satellite Tracking System, OWL-Net

Jin Choi, Korea Astronomy and Space Science Institute, Jung Hyun Jo, Korea Astronomy and Space Science

Keywords: optical tracking, angle-only data, orbit determination, SSA

Abstract:

The optical satellite tracking data obtained by the first Korean optical satellite tracking system, Optical Wide-field patrol – Network (OWL-Net), had been examined for precision orbit determination. During the test observation at Israel site, we have successfully observed a satellite with Laser Retro Reflector (LRR) to calibrate the angle-only metric data. The OWL observation system is using a chopper equipment to get dense observation data in one-shot over 100 points for the low Earth orbit objects. After several corrections, orbit determination process was done with validated metric data. The TLE with the same epoch of the end of the first arc was used for the initial orbital parameter. Orbit Determination Tool Kit (ODTK) was used for an analysis of a performance of orbit estimation using the angle-only measurements. We have been developing batch style orbit estimator.

Date of Conference: September 20-23, 2016

Track: Poster

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