Analysis of the angle-only orbit determination for optical tracking strategy of Korea GEO satellite, COMS

Analysis of a Simulated Optical GSO Survey Observation for the Effective Maintenance of the Catalogued Satellites and the Orbit Determination Strategy

“…The observed data from the survey observation were suitable for sparsecase orbit determination. The positional errors did not exceed 10 km in 7 days for this observation scenario (Choi et al 2015). On the other hand, Kawase (2000) verified theoretically that a 2-day observation over 4 hr decreased the orbit determination error compared with that of a 1-day observation.…”

“…Musci et al (2004) showed that the orbital information of newly detected objects can be maintained in a few days by follow-up observation during the next 3 days. On the other hand, Choi et al (2015) used three sporadically obtained sets of observation data in 10 hr per day and obtained a positional error not exceeding 10 km in 7 days. This calculation requires more than 20 points per set.…”

“…Milani et al (2011) presented an improved initial orbit determination result by using an admissible region and a least square method with survey observation data obtained at the 1-m ESASDT. On the other hand, Tombasco & Axelrad (2011) and Choi et al (2015) analyzed the orbit determination accuracy using angle-only measurements for various observation scenarios. The detailed orbit determination analysis results are useful for development of an effective survey strategy.…”

Orbit Determination of Korean GEO Satellite Using Single SLR Sensor

“…The associated orbit overlap errors compared with Compass-G1 final orbit from GFZ AC were 3.747 m, 22.375 m, and 22.406 m, in radial, in-track, and cross-track directions, respectively, and the 3D RMS error was 31.89 m. These OD results imply that the orbit accuracy can remain within 50 m when more than nine SLR observations are available for a single SLR station. Given that the radar-based OD achieved three-sigma position accuracy on the order of 1.5 km [ 5 ], and the optical-tracking-based OD precision for GEO satellite was about km-level [ 6 ], SLR can be an alternative observation for enhancing OD of GEO satellites.…”

“…Hwang et al [ 5 ] performed the OD of GK-1 with single station antenna to yield position accuracy of 1.5 km. Choi et al [ 6 ] conducted OD by angles-only optical tracking data of GK-1 for 2-day arc to have less than 2 km maximum difference from two-line elements (TLEs). Unlike GK-2A, GK-2B will be equipped with a laser retro-reflector array (LRA) to acquire satellite laser ranging (SLR) observation data.…”