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Characteristics of differential lunar laser ranging

Zhang, Mingyue and Biskupek, Liliane and Müller, Jürgen and Singh, Vishwa Vijay (2022) Characteristics of differential lunar laser ranging. Astronomy & Astrophysics, 659, A148. EDP Sciences. doi: 10.1051/0004-6361/202142841. ISSN 0004-6361.

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Official URL: https://www.aanda.org/articles/aa/abs/2022/03/aa42841-21/aa42841-21.html

Abstract

Context. To obtain more details about the lunar interior, a station at Table Mountain Observatory of JPL will enable a new measurement of lunar laser ranging (LLR), known as differential lunar laser ranging (DLLR). It will provide a novel type of observable, namely, the lunar range difference, which is the difference of two consecutive ranges obtained via a single station swiftly switching between two or more lunar reflectors. This previously unavailable observation will have a very high level of accuracy (about 30 µm), mainly resulting from a reduction in the Earth´s atmospheric error. In addition to the intended improvements for the lunar part, it is expected to contribute to improved relativity tests, for instance, the equivalence principle (EP). Aims. This paper focuses on the simulation and investigation of the characteristics of DLLR. Methods. Using simulated DLLR data, we analyzed and compared the parameter sensitivity, correlation, and accuracy obtained by DLLR with those attained by LLR. Results. The DLLR measurement maintains almost the same sensitivity to certain parameters (called group A) as that of LLR, such as the lunar orientation parameters. For other parameters (called group B), such as station coordinates, it is shown to be less sensitive. However, owing to its extraordinary measurement accuracy, it not only retains nearly the same level of accuracy of group B as LLR, but it also improves the estimation of group A significantly (with the exception of reflector coordinates, due to the DLLR measuring mode). Also, DLLR increases the correlations among the reflectors and between stations and reflectors caused by its constellation. Additionally, we compared different switching intervals with respect to sensitivity and correlation. Large switching intervals are more beneficial for group B and the decorrelation of stations and reflectors. Furthermore, DLLR enhances the accuracy of EP tests.

Item URL in elib:https://elib.dlr.de/185878/
Document Type:Article
Additional Information:Reproduced with permission (c) ESO. Publikation aus FuE Vertrag zwischen dem DLR Institut für Satellitengeodäsie und Inertialsensorik und dem Institut für Erdmessung der Leibniz Universität Hannover. Zwei Autoren werden teilweise durch den FuE Vertrag finanziert.
Title:Characteristics of differential lunar laser ranging
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Zhang, MingyueLeibniz University Hannover, Institute of Geodesy (IfE)https://orcid.org/0000-0002-2198-1747UNSPECIFIED
Biskupek, LilianeLeibniz Universität Hannoverhttps://orcid.org/0000-0002-4204-6838UNSPECIFIED
Müller, JürgenInstitut für Erdmessung, Leibniz Universität Hannover, Germanyhttps://orcid.org/0000-0003-1247-9525UNSPECIFIED
Singh, Vishwa VijayInstitut für Erdmessung, Leibniz Universität Hannover, Germanyhttps://orcid.org/0000-0003-2973-2435UNSPECIFIED
Date:2022
Journal or Publication Title:Astronomy & Astrophysics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:659
DOI:10.1051/0004-6361/202142841
Page Range:A148
Publisher:EDP Sciences
ISSN:0004-6361
Status:Published
Keywords:Moon, Astrometry, Celestial Mechanics, data analysis
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication, Navigation, Quantum Technology
DLR - Research area:Raumfahrt
DLR - Program:R KNQ - Communication, Navigation, Quantum Technology
DLR - Research theme (Project):R - Lunar Laser Ranging
Location: Hannover
Institutes and Institutions:Institute for Satellite Geodesy and Inertial Sensing > Satellite Geodesy and Geodetic Modelling
Deposited By: Schilling, Manuel
Deposited On:07 Apr 2022 09:29
Last Modified:04 Jan 2023 15:05

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