Centimeter-Level Orbit Determination of GRACE-C Using IGS-RTS Data

Author:

Li Duoduo12,Zhou Xuhua1,Li Kai1

Affiliation:

1. Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China

2. School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China

Abstract

GNSS real-time applications greatly benefit from the International GNSS Service’s (IGS) real-time service (RTS). This service does more than provide for terrestrial precise point positioning (PPP); it also brings more possibilities for space-borne technology. With this service, the State-Space Representation (SSR) product, which includes orbit corrections and clock corrections, is finally available to users. In this paper, the GPS real-time orbit and clock corrections provided by 11 analysis centers (ACs) from the day of the year (DOY) 144 to 153 of 2022 are discussed from 3 perspectives: integrity, continuity, and accuracy. Moreover, actual observation data from the GRACE-C satellite are processed, along with SSR corrections from different ACs. The following can be concluded: (1) In terms of integrity and continuity, the products provided by CNE, ESA, and GMV perform better. (2) CNE, ESA, and WHU are the most accurate, with values of about 5 cm for the satellite orbit and 20 ps for the satellite clock. Additionally, the clock accuracy is related to the Block. Block IIR and Block IIR-M are slightly worse than Block IIF and Block IIIA. (3) The accuracy of post-processing reduced-dynamic precise orbit determination (POD) and kinematic POD are at the centimeter level in radius, and the reduced-dynamic POD is more accurate and robust than the kinematic POD.

Funder

National Natural Science Foundation of China

Publisher

MDPI AG

Subject

General Earth and Planetary Sciences

Reference40 articles.

1. Precision Orbit Determination for TOPEX/Poseidon;Tapley;J. Geophys. Res. Atmos.,1995

2. Kuang, D., Bar-Sever, Y., Bertiger, W., Desai, S., Haines, B., Iijima, B., Kruizinga, G., Meehan, T., and Romans, L. (2001, January 24). Precise Orbit Determination for CHAMP Using GPS Data from BlackJack Receiver. Proceedings of the 2001 National Technical Meeting of The Institute of Navigation, Long Beach, CA, USA.

3. Precision Orbit Determination Standards for the Jason Series of Altimeter Missions;Cerri;Mar. Geod.,2010

4. Precise Orbit Determination for GRACE Using Undifferenced or Doubly Differenced GPS Data;Hugentobler;Adv. Space Res.,2007

5. Precise Orbit Determination of the Sentinel-3A Altimetry Satellite Using Ambiguity-Fixed GPS Carrier Phase Observations;Montenbruck;J. Geod.,2018

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