Mao, Xinyuan; Arnold, Daniel; Kalarus, Maciej; Padovan, Sebastiano; Jäggi, Adrian (2023). GNSS-based precise orbit determination for maneuvering LEO satellites. GPS solutions, 27(147) Springer 10.1007/s10291-023-01494-6
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Maneuverability is essential for low Earth orbit (LEO) satellites to fulfill various operational objectives. However, the pre-
cise orbit determination (POD) process might deteriorate due to imperfect satellite orbital dynamics modeling. This article
develops a generic POD strategy with maneuver handling for LEO satellites equipped with high-performance spaceborne
Global Navigation Satellite System (GNSS) receivers. Given the time span of an executed maneuver, a set of constant thrust
accelerations in the satellite body-fixed reference frame is estimated without using a-priori maneuver accelerations. In addi-
tion, different numbers of velocity pulses are estimated at predefined epochs determined by the duration of a maneuver.
POD experiments are done for the GRACE-FO and Sentinel-3 satellites, for which the orbit maneuvers vary significantly.
The orbits are assessed via internal consistency checks and external orbit validations. Internally, in each direction, the
agreement between the reduced-dynamic and kinematic orbits reaches a level of 1 cm, which is comparable with the refer-
ence day without maneuvers. Externally, comparisons with the official GRACE-FO products and orbits from the Sentinel-3
Copernicus POD Quality Working Group confirm the reliability of the new orbits with maneuver handling. Finally, satellite
laser ranging and K-band ranging measurements indicate a 1-cm accuracy of the absolute orbits and a 2-mm accuracy of the
GRACE-FO relative orbits. The maneuver handling strategy is tested in the Bernese GNSS Software, consistently developed
at the Astronomical Institute of the University of Bern.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Institute of Astronomy |
UniBE Contributor: |
Mao, Xinyuan, Arnold, Daniel, Kalarus, Maciej Sebastian, Jäggi, Adrian |
Subjects: |
500 Science > 520 Astronomy |
ISSN: |
1521-1886 |
Publisher: |
Springer |
Language: |
English |
Submitter: |
Pierre Fridez |
Date Deposited: |
29 Feb 2024 07:10 |
Last Modified: |
29 Feb 2024 07:10 |
Publisher DOI: |
10.1007/s10291-023-01494-6 |
BORIS DOI: |
10.48350/193563 |
URI: |
https://boris.unibe.ch/id/eprint/193563 |
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