Contribution of Lunar Laser Ranging to Realise Geodetic Reference Systems

2009 ◽  
pp. 55-59 ◽  
Author(s):  
Jürgen Müller ◽  
Liliane Biskupek ◽  
Jürgen Oberst ◽  
Ulrich Schreiber
Keyword(s):  
Laser Ranging ◽  
Reference Systems ◽  
Lunar Laser Ranging ◽  
Lunar Laser

scholarly journals The Orientation of the Dynamical Reference Frame

1991 ◽  
Vol 127 ◽  
pp. 146-152
Author(s):  
J.G. Williams ◽  
J.O. Dickey ◽  
X X Newhall ◽  
E.M. Standish
Keyword(s):  
Reference Frame ◽  
Current Status ◽  
Laser Ranging ◽  
Reference Systems ◽  
Data Types ◽  
Lunar Laser Ranging ◽  
Accurate Knowledge ◽  
Lunar Laser ◽  
The Impact ◽  
Precession Constant

AbstractWe summarize the current status of the JPL ephemerides, focusing on the various data types utilized, especially the impact of the modern ranging data, and the resulting accuracies obtained. The dynamical equinox, as determined from the analysis of Lunar Laser Ranging data, is determined with an accuracy of 5 mas and the obliquity to a 2 mas level in ~1983, the weighted center of data. Knowledge of the lunar and planetary positions with respect to the dynamical equinox degrades to 10 mas at J2000. Twenty years of LLR data allow for the separation of the 18.6 yr nutation terms from the precession constant. The correction to IAU precession is found to be −2.7 ± 0.4 mas/yr, while the 18.6 yr nutation of the pole is 3.0 ± 1.5 mas larger in magnitude than the 1980 IAU series. The necessity of different reference systems and the accurate knowledge of the interconnections between frames is addressed.

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

2018 ◽  
Vol 92 (9) ◽  
pp. 975-987 ◽  
Author(s):  
Franz Hofmann ◽  
Liliane Biskupek ◽  
Jürgen Müller
Keyword(s):  
Laser Ranging ◽  
Reference Systems ◽  
Analysis Model ◽  
Lunar Laser Ranging ◽  
Lunar Laser

Lunar Laser Ranging at CERGA for the ruby period (1981–1986)

1993 ◽  
pp. 189-193 ◽  
Author(s):  
C. Veillet ◽  
J. F. Mangin ◽  
J. E. Chabaubie ◽  
C. Dumolin ◽  
D. Feraudy ◽  
...  
Keyword(s):  
Laser Ranging ◽  
Lunar Laser Ranging ◽  
Lunar Laser

scholarly journals CONSTRAINT ON INTERMEDIATE-RANGE GRAVITY FROM EARTH–SATELLITE AND LUNAR ORBITER MEASUREMENTS, AND LUNAR LASER RANGING

2005 ◽  
Vol 14 (10) ◽  
pp. 1657-1666 ◽  
Author(s):  
GUANGYU LI ◽  
HAIBIN ZHAO
Keyword(s):  
Experimental Tests ◽  
Earth Satellite ◽  
Laser Ranging ◽  
Satellite Measurement ◽  
Lunar Orbiter ◽  
Lunar Laser Ranging ◽  
Intermediate Range ◽  
Earth Gravity ◽  
Lunar Laser ◽  
Order Of Magnitude

In the experimental tests of gravity, there have been considerable interests in the possibility of intermediate-range gravity. In this paper, we use the earth–satellite measurement of earth gravity, the lunar orbiter measurement of lunar gravity, and lunar laser ranging measurement to constrain the intermediate-range gravity from λ = 1.2 × 107 m –3.8 × 108 m . The limits for this range are α = 10-8–5 × 10-8, which improve previous limits by about one order of magnitude in the range λ = 1.2 × 107 m –3.8 × 108 m .

Effect of non-tidal station loading on Lunar Laser Ranging observatories and on the estimation of Earth orientation parameters

2021 ◽  
Author(s):  
Vishwa Vijay Singh ◽  
Liliane Biskupek ◽  
Jürgen Müller ◽  
Mingyue Zhang
Keyword(s):  
Research Centre ◽  
Laser Ranging ◽  
The Moon ◽  
Lunar Laser Ranging ◽  
Earth Orientation Parameters ◽  
Tidal Station ◽  
Earth Orientation ◽  
The Earth ◽  
Lunar Laser ◽  
Orientation Parameters

<p>The distance between the observatories on Earth and the retro-reflectors on the Moon has been regularly observed by the Lunar Laser Ranging (LLR) experiment since 1970. In the recent years, observations with bigger telescopes (APOLLO) and at infra-red wavelength (OCA) are carried out, resulting in a better distribution of precise LLR data over the lunar orbit and the observed retro-reflectors on the Moon, and a higher number of LLR observations in total. Providing the longest time series of any space geodetic technique for studying the Earth-Moon dynamics, LLR can also support the estimation of Earth orientation parameters (EOP), like UT1. The increased number of highly accurate LLR observations enables a more accurate estimation of the EOP. In this study, we add the effect of non-tidal station loading (NTSL) in the analysis of the LLR data, and determine post-fit residuals and EOP. The non-tidal loading datasets provided by the German Research Centre for Geosciences (GFZ), the International Mass Loading Service (IMLS), and the EOST loading service of University of Strasbourg in France are included as corrections to the coordinates of the LLR observatories, in addition to the standard corrections suggested by the International Earth Rotation and Reference Systems Service (IERS) 2010 conventions. The Earth surface deforms up to the centimetre level due to the effect of NTSL. By considering this effect in the Institute of Geodesy (IfE) LLR model (called ‘LUNAR’), we obtain a change in the uncertainties of the estimated station coordinates resulting in an up to 1% improvement, an improvement in the post-fit LLR residuals of up to 9%, and a decrease in the power of the annual signal in the LLR post-fit residuals of up to 57%. In a second part of the study, we investigate whether the modelling of NTSL leads to an improvement in the determination of EOP from LLR data. Recent results will be presented.</p>

Variations of the gravitational constant from lunar laser ranging data

2007 ◽  
Vol 24 (17) ◽  
pp. 4533-4538 ◽  
Author(s):  
Jürgen Müller ◽  
Liliane Biskupek
Keyword(s):  
Gravitational Constant ◽  
Laser Ranging ◽  
Lunar Laser Ranging ◽  
Lunar Laser

A study of lunar physics by the lunar laser ranging data

1992 ◽  
Vol 16 (3) ◽  
pp. 358
Author(s):  
Jin Wen-jing ◽  
Nie Zhao-ming ◽  
Li Jin-ling
Keyword(s):  
Laser Ranging ◽  
Lunar Laser Ranging ◽  
Lunar Laser ◽  
Lunar Physics

scholarly journals THE FIRST LUNAR LASER RANGING CONSTRAINTS ON GRAVITY SECTOR SME PARAMETERS

2008 ◽  
Author(s):  
J. B. R. BATTAT ◽  
J. F. CHANDLER ◽  
C. W. STUBBS
Keyword(s):  
Laser Ranging ◽  
Lunar Laser Ranging ◽  
Lunar Laser

On the accuracy of lunar ephemerides using the data provided by the future Russian lunar laser ranging system

2016 ◽  
Vol 50 (5) ◽  
pp. 361-367 ◽  
Author(s):  
M. V. Vasilyev ◽  
E. I. Yagudina ◽  
E. A. Grishin ◽  
O. A. Ivlev ◽  
I. A. Grechukhin
Keyword(s):  
Laser Ranging ◽  
Lunar Laser Ranging ◽  
Lunar Laser ◽  
The Future
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