GPS-Based Orbit Determination for KOMPSAT-5 Satellite

Korea Multi-Purpose Satellite-5 (KOMPSAT-5) is the first satellite in Korea that provides 1 m resolution synthetic aperture radar (SAR) images. Precise orbit determination (POD) using a dual-frequency IGOR receiver data is performed to conduct high-resolution SAR images. We suggest orbit determination strategies based on a differential GPS technique. Double-differenced phase observations are sampled every 30 seconds. A dynamic model approach using an estimation of general empirical acceleration every 6 minutes through a batch least-squares estimator is applied. The orbit accuracy is validated using real data from GRACE and KOMPSAT-2 as well as simulated KOMPSAT-5 data. The POD results using GRACE satellite are adjusted through satellite laser ranging data and compared with publicly available reference orbit data. Operational orbit determination satisfies 5 m root sum square (RSS) in one sigma, and POD meets the orbit accuracy requirements of less than 20 cm and 0.003 cm/s RSS in position and velocity, respectively.

[1]  D. Laurichesse,et al.  TOPSTAR 3000 – An Enhanced GPS Receiver for Space Applications , 2000 .

[2]  B. Tapley,et al.  Earth radiation pressure effects on satellites , 1988 .

[3]  R. Langley,et al.  Improved mapping functions for atmospheric refraction correction in SLR , 2002 .

[4]  Yoola Hwang,et al.  Precise Orbit Determination of LEO Satellite Using Dual-Frequency GPS Data , 2009 .

[5]  Gerhard Beutler,et al.  Orbit determination for the GOCE satellite , 2009 .

[6]  Jae-Hoon Kim,et al.  Orbit determination performances using single- and double-differenced methods: SAC-C and KOMPSAT-2 , 2011 .

[7]  J. W. King,et al.  Space Research VIII , 1968 .

[8]  Z. Kang,et al.  Precise orbit determination for the GRACE mission using only GPS data , 2006 .

[9]  Sang-Ryool Lee.  Overview of KOMPSAT-5 program, mission, and system , 2010, 2010 IEEE International Geoscience and Remote Sensing Symposium.

[10]  A. Hedin.  Extension of the MSIS Thermosphere Model into the middle and lower atmosphere , 1991 .

[11]  John C. Ries,et al.  Impact of GPS satellite antenna offsets on GPS-based precise orbit determination , 2007 .

[12]  Gerhard Beutler,et al.  Precise orbit determination for the GOCE satellite using GPS , 2006 .

[13]  Geoengineering Centres Gfz Publication Database Deutsches GeoFors Earth Observing Satellites,et al.  EIGEN-GL05C - A new global combined high-resolution GRACE-based gravity field model of the GFZ-GRGS cooperation , 2008 .

[14]  Z. Kang,et al.  Precise orbit determination for GRACE , 2003 .

[15]  Oliver Montenbruck,et al.  TerraSAR-X Precise Trajectory Estimation and Quality Assessment , 2009, IEEE Transactions on Geoscience and Remote Sensing.

[16]  Z. Altamimi,et al.  ITRF2005 : A new release of the International Terrestrial Reference Frame based on time series of station positions and Earth Orientation Parameters , 2007 .

[17]  N. K. Pavlis,et al.  The Development of the Joint NASA GSFC and the National Imagery and Mapping Agency (NIMA) Geopotential Model EGM96 , 1998 .

[18]  G. Gronchi,et al.  ORBIT DETERMINATION , 2012 .

[19]  Byoung-Sun Lee,et al.  KOMPSAT-2 Orbit Determination Status Report , 2010 .