Contributions to reference systems from Lunar Laser Ranging using the IfE analysis model

verfasst von
Franz Hofmann, Liliane Biskupek, Jürgen Müller
Abstract

Lunar Laser Ranging (LLR) provides various quantities related to reference frames like Earth orientation parameters, coordinates and velocities of ground stations in the Earth-fixed frame and selenocentric coordinates of the lunar retro-reflectors. This paper presents the recent results from LLR data analysis at the Institut für Erdmessung, Leibniz Universität Hannover, based on all LLR data up to the end of 2016. The estimates of long-periodic nutation coefficients with periods between 13.6 days and 18.6 years are obtained with an accuracy in the order of 0.05–0.7 milliarcseconds (mas). Estimations of the Earth rotation phase Δ UT are accurate at the level of 0.032 ms if more than 14 normal points per night are included. The tie between the dynamical ephemeris frame to the kinematic celestial frame is estimated from pure LLR observations by two angles and their rates with an accuracy of 0.25 and 0.02 mas per year. The estimated station coordinates and velocities are compared to the ITRF2014 solution and the geometry of the retro-reflector network with the DE430 solution. The given accuracies represent 3 times formal errors of the parameter fit. The accuracy for Δ UT is based on the standard deviation of the estimates with respect to the reference C04 solution.

Organisationseinheit(en)
Institut für Erdmessung
Typ
Artikel
Journal
Journal of geodesy
Band
92
Seiten
975-987
Anzahl der Seiten
13
ISSN
0949-7714
Publikationsdatum
17.01.2018
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Geophysik, Geochemie und Petrologie, Computer in den Geowissenschaften
Elektronische Version(en)
https://doi.org/10.1007/s00190-018-1109-3 (Zugang: Geschlossen)
 

Details im Forschungsportal „Research@Leibniz University“