Performance Comparison of KOMPSAT-5 Precision Orbit Determination with GRACE
Joint Authors
Source
International Journal of Aerospace Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-02-27
Country of Publication
Egypt
No. of Pages
11
Abstract EN
The Korean Multipurpose Satellite-5 (KOMPSAT-5) launched on 22 August 2013 was equipped with a global positioning system (GPS) receiver for precision orbit determination (POD).
Even though the GPS receiver of KOMPSAT-5 shares the same heritage as the BlackJack receiver onboard in Gravity Recovery and Climate Experiment (GRACE) satellites, KOMPSAT-5 has a lower orbital position accuracy (~10 cm) compared with GRACE (~2 cm).
The reduced dynamic and kinematic methods are applied for POD of KOMPSAT-5 and GRACE to investigate the GPS observation quality due to the satellite operation concept and hardware design.
The results are analyzed in terms of the number of observations and their spatial distribution, GPS signal quality, and orbital position accuracies.
The results show that the frequent attitude maneuvers of KOMPSAT-5 affect the quality of the GPS signals and solutions obtained from the kinematic method compared with that determined from the reduced-dynamic method.
The onboard patch GPS antenna installed in KOMPSAT-5 and its geometrical position resulted in more erratic measurement residuals by 140% compared with the choke ring antenna of GRACE.
The POD accuracy is dependent on the hardware design and regular attitude tilting for the synthetic aperture radar (SAR) imaging even though the same GPS receiver performances.
American Psychological Association (APA)
Roh, Kyung-Min& Hwang, Yoola. 2020. Performance Comparison of KOMPSAT-5 Precision Orbit Determination with GRACE. International Journal of Aerospace Engineering،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1168178
Modern Language Association (MLA)
Roh, Kyung-Min& Hwang, Yoola. Performance Comparison of KOMPSAT-5 Precision Orbit Determination with GRACE. International Journal of Aerospace Engineering No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1168178
American Medical Association (AMA)
Roh, Kyung-Min& Hwang, Yoola. Performance Comparison of KOMPSAT-5 Precision Orbit Determination with GRACE. International Journal of Aerospace Engineering. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1168178
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1168178