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Satellite laser ranging to GPS and GLONASS

Sosnica, Krzysztof and Thaller, Daniela and Dach, Rolf and Steigenberger, Peter and Beutler, Gerhard and Arnold, Daniel and Jäggi, Adrian (2015) Satellite laser ranging to GPS and GLONASS. Journal of Geodesy, 89 (7), pp. 725-743. Springer. DOI: 10.1007/s00190-015-0810-8 ISSN 0949-7714

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Satellite laser ranging (SLR) to the satellites of the global navigation satellite systems (GNSS) provides substantial and valuable information about the accuracy and quality of GNSS orbits and allows for the SLR-GNSS colocation in space. In the framework of the NAVSTAR-SLR experiment two GPS satellites of Block-IIA were equipped with laser retroreflector arrays (LRAs), whereas all satellites of the GLONASS system are equipped with LRAs in an operational mode. We summarize the outcome of the NAVSTAR-SLR experiment by processing 20 years of SLR observations to GPS and 12 years of SLR observations to GLONASS satellites using the reprocessedmicrowave orbits provided by the center for orbit determination in Europe (CODE). The dependency of the SLR residuals on the size, shape, and number of corner cubes in LRAs is studied. We show that the mean SLR residuals and the RMS of residuals depend on the coating of the LRAs and the block or type of GNSS satellites. The SLR mean residuals are also a function of the equipment used at SLR stations including the single-photon and multi-photon detection modes.We also showthat the SLR observations to GNSS satellites are important to validate GNSS orbits and to assess deficiencies in the solar radiation pressure models. We found that the satellite signature effect, which is defined as a spread of optical pulse signals due to reflection from multiple reflectors, causes the variations of mean SLR residuals of up to 15mmbetween the observations at nadir angles of 0◦ and 14◦. in case of multiphoton SLR stations. For single-photon SLR stations this effect does not exceed 1 mm. When using the new empirical CODE orbit model (ECOM), the SLR mean residual falls into the range 0.1–1.8 mm for high-performing singlephoton SLR stations observing GLONASS-M satellites with uncoated corner cubes. For best-performing multi-photon stations the mean SLR residuals are between −12.2 and −25.6 mm due to the satellite signature effect.

Item URL in elib:https://elib.dlr.de/96031/
Document Type:Article
Title:Satellite laser ranging to GPS and GLONASS
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Sosnica, KrzysztofAIUBhttps://orcid.org/0000-0001-6181-1307
Steigenberger, PeterDLR/GSOChttps://orcid.org/0000-0003-1905-6699
Date:April 2015
Journal or Publication Title:Journal of Geodesy
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1007/s00190-015-0810-8
Page Range:pp. 725-743
Keywords:SLR; GNSS; Precise orbit determination; Satellite signature effect; Corner cube coating; SLR reflector types
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Vorhaben Infrastruktur und Unterstützung für Raumflugbetrieb
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training
Deposited By: Steigenberger, Peter
Deposited On:21 Apr 2015 09:23
Last Modified:10 Jan 2019 15:48

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