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Proceedings Paper

Lunar laser ranging by optical transponder collocated with VLBI radio sources on the moon
Author(s): Taizoh Yoshino; Ulrich Schreiber; Nobuyuki Kawano; Hiroo Kunimori; Jun Amagai; Tetsuya Kondo; Takahiro Iwata; Wolfgang Schlueter; John J. Degnan
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Paper Abstract

The lunar laser ranging (LLR) has been dependent on the retro-reflectors placed on the Moon since the past three decades before. In spite of the technical improvement, regular observations are performed by a limited number of stations due to the weak echo. To allow more opportunities for observations, it is most effective to place modern device on the Moon. Since a Japanese second lunar probe is planned to be launched in 2006, the ideas are collected for scientific purposes. It is described here that an optical transponder on the Moon would enhance the possibility of LLR observations to a large degree. It is also proposed to have three radio sources on the Moon to determine the angular component perpendicular to the Earth-Moon vector and librations. One of the most important scientific targets for the proposed mission is a relativistic experiment which was not attained by a conventional LLR.

Paper Details

Date Published: 15 December 1999
PDF: 7 pages
Proc. SPIE 3865, Laser Radar Ranging and Atmospheric Lidar Techniques II, (15 December 1999); doi: 10.1117/12.373027
Show Author Affiliations
Taizoh Yoshino, Communications Research Lab. (Japan)
Ulrich Schreiber, Technische Univ. Muenchen (Germany)
Nobuyuki Kawano, National Astronomical Observatory (Japan)
Hiroo Kunimori, Communications Research Lab. (Japan)
Jun Amagai, Communications Research Lab. (Japan)
Tetsuya Kondo, Communications Research Lab. (Japan)
Takahiro Iwata, National Space Development Agency of Japan (Japan)
Wolfgang Schlueter, Bundesamt fuer Kartographie und Geodaesie (Germany)
John J. Degnan, NASA Goddard Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 3865:
Laser Radar Ranging and Atmospheric Lidar Techniques II
Ulrich Schreiber; Christian Werner, Editor(s)

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