Hervé Viot

Time/distance metrology based on free-space optical communication links

Ziad Rustom, Duy‐Hà Phung, Julien Chabé, Clément Courde et autres

International audience

fr (code pays fourni par la source)

The optical challenge of two-colour lunar laser ranging at MéO station

G. Martinot-Lagarde, Hervé Mariey, Nicolas Maurice, Julien Scariot et autres

This article describes recent optical developments for the Nd:YAG laser at the MéO station, which regularly carries out L unar/ S atellite Laser Ranging ( L LR/ S LR) observations for fundamental physics and space geodesy. MéO (registred as GRSM 7845 in …

fr (code pays fourni par la source)

Demonstration of deep-space synchronous two-way laser ranging with a laser transponder aboard Hayabusa2

Hirotomo Noda, Hiroki Senshu, Toshimichi Otsubo, Hiroshi Takeuchi et autres

jp, fr, de (code pays fourni par la source)

Recent Progress in Lunar Laser Ranging at Grasse Laser Ranging Station

Julien Chabé, Clément Courde, Jean‐Marie Torre, S. Bouquillon et autres

Abstract Based on a fully passive space segment, the lunar laser ranging experiment is the last of the Apollo Lunar Surface Experiments Package to operate. Observations from the Grasse lunar laser ranging station have been made on a daily basis since the …

fr (code pays fourni par la source)

Recent Progress in Lunar Laser Ranging at Grasse Laser Ranging Station

Adrien Bourgoin, Julien Chabé, Clément Courde, M. Aimar et autres

International audience

it, fr (code pays fourni par la source)

Lunar laser ranging in infrared at the Grasse laser station

Clément Courde, Jean‐Marie Torre, E. Samain, G. Martinot-Lagarde et autres

For many years, lunar laser ranging (LLR) observations using a green wavelength have suffered an inhomogeneity problem both temporally and spatially. This paper reports on the implementation of a new infrared detection at the Grasse LLR station and describes how infrared telemetry …

fr (code pays fourni par la source)

Satellite and lunar laser ranging in infrared

Clément Courde, Jean‐Marie Torre, Étienne Samain, G. Martinot-Lagarde et autres

We report on the implementation of a new infrared detection at the Grasse lunar laser ranging station and describe how infrared telemetry improves the situation. We present our first results on the lunar reflectors and show that infrared detection permits us to …

fr (code pays fourni par la source)

LLR data analysis and impact on lunar dynamics from recent developments at OCA LLR Station

Vishnu Viswanathan, A. Fienga, Clément Courde, Jean‐Marie Torre et autres

International audience

fr (code pays fourni par la source)

Laser enhancements for Lunar Laser Ranging at 532 nm

G. Martinot-Lagarde, M. Aimar, D. Albanèse, Clément Courde et autres

This article exposes how we improved (by more than a factor of four) the green Lunar Laser Ranging instrumental sensitivity of the French telemetric station of the “Observatoire de la Côte d’Azur” in 2012. The primary reason for this success is the …

fr (code pays fourni par la source)

Time Transfer by Laser Link - T2L2: First data

E. Samain, Ph. Guillemot, P. Exertier, D. Albanèse et autres

The T2L2 (Time Transfer by Laser Link) project, developed by CNES and OCA will permit the synchronization of remote ultra stable clocks and the determination of their performances over intercontinental distances. The principle is derived from laser telemetry technology with a dedicated …

MEO : The New French Lunar Laser Ranging Station

E. Samain, A. Abchiche, D. Albanèse, Nicolas Geyskens et autres

Converting a Schmidt Telescope to CCDs: The OCA/DLR Asteroid Survey

Alain Maury, J.P. Ragey, Hervé Viot, H. Michaelis et autres

fr, de (code pays fourni par la source)