Results 11 to 20 of about 2,111,313 (164)

MOONLIGHT: A NEW LUNAR LASER RANGING RETROREFLECTOR INSTRUMENT [PDF]

Acta Polytechnica, 2013
Since 1969 Lunar Laser Ranging (LLR) to the Apollo Cube Corner Reflector (CCR) arrays has supplied several significant tests of gravity: Geodetic Precession, the Strong and Weak Equivalence Principle (SEP, WEP), the Parametrized Post Newtonian (PPN ...
M. Garattini, S. Dell’Agnello, D. Currie, G. O. Delle Monache, M. Tibuzzi, G. Patrizi, S. Berardi, A. Boni, C. Cantone, N. Itaglietta, C. Lops, M. Maiello, M. Martini, R. Vittori, G. Bianco, R. March, G. Bellettini, R. Tauraso   +17 more
doaj   +2 more sources

Recent Developments at the Apache Point Lunar Laser Ranging Station

, 2022
22nd International Workshop on Laser Ranging, Guadalajara, Spain, November 07-11, 2022.The Apache Point Lunar Laser Ranging Station (formerly the Apache Point Observatory Lunar Laser-ranging Operation, or “APOLLO”) became part of the NASA Space Geodesy ...
Viswanathan, Vishnu, Colmenares, Nicholas R., Merkowitz, Stephen M., Gonzales, Daniel P., Battat, James B. R., Hoffman, Evan D., Lemoine, Frank G., Murphy, Thomas W., Jr., Sabhlok, Sanchit S., McMillan, Russet M.   +9 more
core   +1 more source

AN INITIATIVE FOR CONSTRUCTION OF NEW-GENERATION LUNAR GLOBAL CONTROL NETWORK USING MULTI-MISSION DATA [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
A lunar global control network provides geodetic datum and control points for mapping of the lunar surface. The widely used Unified Lunar Control Network 2005 (ULCN2005) was built based on a combined photogrammetric solution of Clementine images acquired
K. Di, B. Liu, M. Peng, X. Xin, M. Jia, W. Zuo, J. Ping, B. Wu, J. Oberst   +8 more
doaj   +1 more source

Benefit of New High-Precision LLR Data for the Determination of Relativistic Parameters

Universe, 2021
Since 1969, Lunar Laser Ranging (LLR) data have been collected by various observatories and analysed by different analysis groups. In the recent years, observations with bigger telescopes (APOLLO) and at infra-red wavelength (OCA) are carried out ...
Liliane Biskupek, Jürgen Müller, Jean-Marie Torre   +2 more
doaj   +1 more source

LCNS Positioning of a Lunar Surface Rover Using a DEM-Based Altitude Constraint

Remote Sensing, 2022
With the renewed interest in lunar surface exploration, the European Space Agency envisions to stimulate the creation of lunar communications and navigation services (LCNS) to enable, among others, autonomous navigation capabilities for lunar rovers.
Floor Thomas Melman, Paolo Zoccarato, Csilla Orgel, Richard Swinden, Pietro Giordano, Javier Ventura-Traveset   +5 more
doaj   +1 more source

Simultaneous laser ranging and communication from an Earth-based satellite laser ranging station to the Lunar Reconnaissance Orbiter in lunar orbit [PDF]

, 2013
We report a free space laser communication experiment from the satellite laser ranging (SLR) station at NASA Goddard Space Flight Center (GSFC) to the Lunar Reconnaissance Orbiter (LRO) in lunar orbit through the on board one-way Laser Ranging (LR ...
Skillman, David R., Xiaoli Sun, Krainak, Michael A., Hoffman, Evan D., Michael A. Krainak, Zuber, Maria T., Wai H. Fong, Leva McIntire, Dandan Mao, Neumann, Gregory A., Jan F. McGarry, Evan D. Hoffman, Frederic M. Davidson, Sun, Xiaoli, McIntire, Leva, Zellar, Ronald S., Gregory A. Neumann, Smith, David E., Ronald S. Zellar, David R. Skillman, David E. Smith, Smith, David Edmund, Maria T. Zuber, Fong, Wai H., Mao, Dandan, McGarry, Jan F., Zuber, Maria, Davidson, Frederic M.   +27 more
core   +1 more source

MOONLIGHT: A NEW LUNAR LASER RANGING RETROREFLECTOR AND THE LUNAR GEODETIC PRECESSION

Acta Polytechnica, 2013
Since the 1970s Lunar Laser Ranging (LLR) to the Apollo Cube Corner Retroreflector (CCR) arrays (developed by the University of Maryland, UMD) supplied almost all significant tests of General Relativity (Alley et al., 1970; Chang et al., 1971; Bender et ...
M. Martini, S. Dell’Agnello, D. Currie, G. O. Delle Monache, R. Vittori, S. Berardi, A. Boni, C. Cantone, E. Ciocci, C. Lops, M. Garattini, M. Maiello, G. Patrizi, M. Tibuzzi, N. Intaglietta, J. Chandler, G. Bianco   +16 more
doaj   +1 more source

REVISED COORDINATES FOR APOLLO HARDWARE [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
The Narrow Angle Camera (NAC) on the Lunar Reconnaissance Orbiter provides direct imaging, at pixel scales of 0.5 to 1.0 meter, of anthropogenic equipment left on the Moon.
R. V. Wagner, E. J. Speyerer, K. N. Burns, J. Danton, M. S. Robinson   +4 more
doaj   +1 more source

Recent Progress in Lunar Laser Ranging at Grasse Laser Ranging Station

, 2019
International audienceBased on a fully passive space segment, the Lunar Laser Ranging experiment is the last of the Apollo Lunar Surface Experiments Package to operate.
Courde, Clément, Phung, Duy-Hà, Chabé, Julien, Bouquillon, Sébastien, Mariey, Hervé, Torre, Jean-Marie, Viot, Hervé, Maurice, Nicolas, Albanese, Dominique, Aimar, Mourad, Chauvineau, Bertrand, Martinot-Lagarde, Gregoire, Bourgoin, Adrien, Samain, Etienne   +13 more
core   +4 more sources

Characteristics of differential lunar laser ranging [PDF]

, 2022
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).
Singh, Vishwa Vijay, Biskupek, Liliane, Müller, Jürgen, Liliane Biskupek, Zhang, Mingyue, Vishwa Vijay Singh, Mingyue Zhang, Jürgen Müller   +7 more
core   +1 more source