Orbit Determination Using SLR Data for STSAT-2C:Short-arc Analysis

In this study, we present the results of orbit determination (OD) using satellite laser ranging (SLR) data for the Science and Technology Satellite (STSAT)-2C by a short-arc analysis. For SLR data processing, the NASA/GSFC GEODYN II software with one year (2013/04 – 2014/04) of normal point observ...

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Main Authors: Young-Rok Kim, Eunseo Park, Daniel Kucharski, Hyung-Chul Lim
Format: Article
Language:English
Published: The Korean Space Science Society 2015-09-01
Series:Journal of Astronomy and Space Sciences
Subjects:
Online Access:http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2015/v32n3/OJOOBS_2015_v32n3_189.pdf
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author Young-Rok Kim
Eunseo Park
Daniel Kucharski
Hyung-Chul Lim
author_facet Young-Rok Kim
Eunseo Park
Daniel Kucharski
Hyung-Chul Lim
author_sort Young-Rok Kim
collection DOAJ
description In this study, we present the results of orbit determination (OD) using satellite laser ranging (SLR) data for the Science and Technology Satellite (STSAT)-2C by a short-arc analysis. For SLR data processing, the NASA/GSFC GEODYN II software with one year (2013/04 – 2014/04) of normal point observations is used. As there is only an extremely small quantity of SLR observations of STSAT-2C and they are sparsely distribution, the selection of the arc length and the estimation intervals for the atmospheric drag coefficients and the empirical acceleration parameters was made on an arc-to-arc basis. For orbit quality assessment, the post-fit residuals of each short-arc and orbit overlaps of arcs are investigated. The OD results show that the weighted root mean square post-fit residuals of short-arcs are less than 1 cm, and the average 1-day orbit overlaps are superior to 50/600/900 m for the radial/cross-track/along-track components. These results demonstrate that OD for STSAT-2C was successfully achieved with cm-level range precision. However its orbit quality did not reach the same level due to the availability of few and sparse measurement conditions. From a mission analysis viewpoint, obtaining the results of OD for STSAT-2C is significant for generating enhanced orbit predictions for more frequent tracking.
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spelling doaj.art-0052b738acf5454f900b9008b60c604d2024-01-02T00:34:24ZengThe Korean Space Science SocietyJournal of Astronomy and Space Sciences2093-55872093-14092015-09-0132318920010.5140/JASS.2015.32.3.189Orbit Determination Using SLR Data for STSAT-2C:Short-arc AnalysisYoung-Rok Kim0Eunseo Park1Daniel Kucharski2Hyung-Chul Lim3Korea Astronomy and Space Science Institute, Daejeon 34055, KoreaKorea Astronomy and Space Science Institute, Daejeon 34055, KoreaSpace Environment Research Centre, Mount Stromlo Observatory, ACT 2611, AustraliaKorea Astronomy and Space Science Institute, Daejeon 34055, KoreaIn this study, we present the results of orbit determination (OD) using satellite laser ranging (SLR) data for the Science and Technology Satellite (STSAT)-2C by a short-arc analysis. For SLR data processing, the NASA/GSFC GEODYN II software with one year (2013/04 – 2014/04) of normal point observations is used. As there is only an extremely small quantity of SLR observations of STSAT-2C and they are sparsely distribution, the selection of the arc length and the estimation intervals for the atmospheric drag coefficients and the empirical acceleration parameters was made on an arc-to-arc basis. For orbit quality assessment, the post-fit residuals of each short-arc and orbit overlaps of arcs are investigated. The OD results show that the weighted root mean square post-fit residuals of short-arcs are less than 1 cm, and the average 1-day orbit overlaps are superior to 50/600/900 m for the radial/cross-track/along-track components. These results demonstrate that OD for STSAT-2C was successfully achieved with cm-level range precision. However its orbit quality did not reach the same level due to the availability of few and sparse measurement conditions. From a mission analysis viewpoint, obtaining the results of OD for STSAT-2C is significant for generating enhanced orbit predictions for more frequent tracking.http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2015/v32n3/OJOOBS_2015_v32n3_189.pdforbit determinationsatellite laser rangingSTSAT-2CGEODYN IIsparseshort-arc
spellingShingle Young-Rok Kim
Eunseo Park
Daniel Kucharski
Hyung-Chul Lim
Orbit Determination Using SLR Data for STSAT-2C:Short-arc Analysis
Journal of Astronomy and Space Sciences
orbit determination
satellite laser ranging
STSAT-2C
GEODYN II
sparse
short-arc
title Orbit Determination Using SLR Data for STSAT-2C:Short-arc Analysis
title_full Orbit Determination Using SLR Data for STSAT-2C:Short-arc Analysis
title_fullStr Orbit Determination Using SLR Data for STSAT-2C:Short-arc Analysis
title_full_unstemmed Orbit Determination Using SLR Data for STSAT-2C:Short-arc Analysis
title_short Orbit Determination Using SLR Data for STSAT-2C:Short-arc Analysis
title_sort orbit determination using slr data for stsat 2c short arc analysis
topic orbit determination
satellite laser ranging
STSAT-2C
GEODYN II
sparse
short-arc
url http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2015/v32n3/OJOOBS_2015_v32n3_189.pdf
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AT eunseopark orbitdeterminationusingslrdataforstsat2cshortarcanalysis
AT danielkucharski orbitdeterminationusingslrdataforstsat2cshortarcanalysis
AT hyungchullim orbitdeterminationusingslrdataforstsat2cshortarcanalysis