TY - JOUR
T1 - Angles-only initial orbit determination of Low Earth Orbit (LEO) satellites using real observational data
AU - Hwang, Hyewon
AU - Park, Sang Young
AU - Lee, Eunji
N1 - Publisher Copyright:
© The Korean Space Science Society.
PY - 2019
Y1 - 2019
N2 - The Optical Wide-field patroL-Network (OWL-Net) is a Korean optical space surveillance system used to track and monitor objects in space. In this study, the characteristics of four Initial Orbit Determination (IOD) methods were analyzed using artificial observational data from Low Earth Orbit satellites, and an appropriate IOD method was selected for use as the initial value of Precise Orbit Determination using OWL-Net data. Various simulations were performed according to the properties of observational data, such as noise level and observational time interval, to confirm the characteristics of the IOD methods. The IOD results produced via the OWL-Net observational data were then compared with Two Line Elements data to verify the accuracy of each IOD method. This paper, thus, suggests the best method for IOD, according to the properties of angles-only data, for use even when the ephemeris of a satellite is unknown.
AB - The Optical Wide-field patroL-Network (OWL-Net) is a Korean optical space surveillance system used to track and monitor objects in space. In this study, the characteristics of four Initial Orbit Determination (IOD) methods were analyzed using artificial observational data from Low Earth Orbit satellites, and an appropriate IOD method was selected for use as the initial value of Precise Orbit Determination using OWL-Net data. Various simulations were performed according to the properties of observational data, such as noise level and observational time interval, to confirm the characteristics of the IOD methods. The IOD results produced via the OWL-Net observational data were then compared with Two Line Elements data to verify the accuracy of each IOD method. This paper, thus, suggests the best method for IOD, according to the properties of angles-only data, for use even when the ephemeris of a satellite is unknown.
KW - Cryosat-2
KW - Initial orbit determination
KW - KOMPSAT-1
KW - Optical Wide-field patroL-Network (OWL-Net)
KW - Optical surveillance
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U2 - 10.5140/JASS.2019.36.3.187
DO - 10.5140/JASS.2019.36.3.187
M3 - Article
AN - SCOPUS:85074171047
SN - 2093-5587
VL - 36
SP - 187
EP - 197
JO - Journal of Astronomy and Space Sciences
JF - Journal of Astronomy and Space Sciences
IS - 3
ER -