Impact of a Priori Gravity Field Models on SLR Data Processing

Geisser, Linda; Meyer, Ulrich; Arnold, Daniel; Jäggi, Adrian (17 July 2023). Impact of a Priori Gravity Field Models on SLR Data Processing (Unpublished). In: IUGG Berlin 2023, 28th General Assembly.

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Satellite Laser Ranging (SLR) data can be processed to estimate geodetic parameters, i.e., the Earth Rotation Parameters (ERPs), station coordinates or low-degree spherical harmonic coefficients of the Earth's gravity field. The satellite orbits are determined in 7-day arcs together with geodetic and instrument parameters. However, the quality of these orbits strongly depends on the accuracy of the background models, e.g., the a priori Earth's gravity field. In this study, SLR analyses are validated, where different a priori gravity field models are used. These include static and time-variable products provided by the Center for Space Research (CSR), the International Laser Ranging Service (ILRS) and the Combination Service for Time-variable Gravity Fields (COST-G). The impact of the background models on the SLR data processing is analyzed by comparing the estimated parameters with internal and external quality metrics.

Item Type:

Conference or Workshop Item (Speech)

Division/Institute:

08 Faculty of Science > Institute of Astronomy

UniBE Contributor:

Geisser, Linda Christine, Meyer, Ulrich, Arnold, Daniel, Jäggi, Adrian

Subjects:

500 Science > 520 Astronomy

Language:

English

Submitter:

Daniel Arnold

Date Deposited:

01 Feb 2024 14:41

Last Modified:

01 Feb 2024 14:41

BORIS DOI:

10.48350/192340

URI:

https://boris.unibe.ch/id/eprint/192340

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