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dc.contributor.author
Meindl, Michael
dc.contributor.author
Beutler, Gerhard
dc.contributor.author
Thaller, Daniela
dc.contributor.author
Dach, Rolf
dc.contributor.author
Schaer, Stefan
dc.contributor.author
Jäggi, Adrian
dc.date.accessioned
2022-07-28T09:17:34Z
dc.date.available
2017-06-11T14:07:25Z
dc.date.available
2022-07-28T09:17:34Z
dc.date.issued
2015-02
dc.identifier.issn
0949-7714
dc.identifier.issn
1432-1394
dc.identifier.other
10.1007/s00190-014-0765-1
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/93250
dc.identifier.doi
10.3929/ethz-b-000093250
dc.description.abstract
Meindl et al. (Adv Space Res 51(7):1047–1064, 2013) showed that the geocenter 𝑧�-component estimated from observations of global navigation satellite systems (GNSS) is strongly correlated to a particular parameter of the solar radiation pressure (SRP) model developed by Beutler et al. (Manuscr Geod 19:367–386, 1994). They analyzed the forces caused by SRP and the impact on the satellites’ orbits. The authors achieved their results using perturbation theory and celestial mechanics. Rebischung et al. (J Geod doi:10.1016/j.asr.2012.10.026, 2013) also deal with the geocenter determination with GNSS. The authors carried out a collinearity diagnosis of the associated parameter estimation problem. They conclude “without much exaggerating that current GNSS are insensitive to any component of geocenter motion”. They explain this inability by the high degree of collinearity of the geocenter coordinates mainly with satellite clock corrections. Based on these results and additional experiments, they state that the conclusions drawn by Meindl et al. (Adv Space Res 51(7):1047–1064, 2013) are questionable. We do not agree with these conclusions and present our arguments in this article. In the first part, we review and highlight the main characteristics of the studies performed by Meindl et al. (Adv Space Res 51(7):1047–1064, 2013) to show that the experiments are quite different from those performed by Rebischung et al. (J Geod doi:10.1016/j.asr.2012.10.026,2013) . In the second part, we show that normal equation (NEQ) systems are regular when estimating geocenter coordinates, implying that the covariance matrices associated with the NEQ systems may be used to assess the sensitivity to geocenter coordinates in a standard way. The sensitivity of GNSS to the components of the geocenter is discussed. Finally, we comment on the arguments raised by Rebischung et al. (J Geod doi:10.1016/j.asr.2012.10.026, 2013) against the results of Meindl et al. (Adv Space Res 51(7):1047–1064, 2013).
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Springer
en_US
dc.rights.uri
http://rightsstatements.org/page/InC-NC/1.0/
dc.subject
GNSS
en_US
dc.subject
Geocenter
en_US
dc.subject
Collinearity
en_US
dc.subject
Solar radiation pressure
en_US
dc.subject
Celestial mechanics
en_US
dc.title
A comment on the article “A collinearity diagnosis of the GNSS geocenter determination” by P. Rebischung, Z. Altamimi, and T. Springer
en_US
dc.type
Journal Article
dc.rights.license
In Copyright - Non-Commercial Use Permitted
dc.date.published
2014-10-07
ethz.journal.title
Journal of Geodesy
ethz.journal.volume
89
en_US
ethz.journal.issue
2
en_US
ethz.journal.abbreviated
J Geod
ethz.pages.start
189
en_US
ethz.pages.end
194
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.notes
It was possible to publish this article open access thanks to a Swiss National Licence with the publisher.
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.identifier.nebis
001548679
ethz.publication.place
Berlin
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02647 - Inst. f. Geodäsie und Photogrammetrie / Institute of Geodesy and Photogrammetry::03824 - Rothacher, Markus (emeritus) / Rothacher, Markus (emeritus)
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02647 - Inst. f. Geodäsie und Photogrammetrie / Institute of Geodesy and Photogrammetry::03824 - Rothacher, Markus (emeritus) / Rothacher, Markus (emeritus)
ethz.date.deposited
2017-06-11T14:07:40Z
ethz.source
ECIT
ethz.identifier.importid
imp593652955ad0253191
ethz.ecitpid
pub:146580
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-12T18:13:49Z
ethz.rosetta.lastUpdated
2024-02-02T17:44:01Z
ethz.rosetta.versionExported
true
ethz.COinS
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