Timing calibration of the APOLLO experiment

Autor:	Battat, J. B. R., Huang, L. R., Schlerman, E., Murphy, Jr, T. W., Colmenares, N. R., Davis, R.
Rok vydání:	2017
Předmět:	Astrophysics - Instrumentation and Methods for Astrophysics General Relativity and Quantum Cosmology
Druh dokumentu:	Working Paper
Popis:	The Apache Point Observatory Lunar Laser-ranging Operation (APOLLO) began millimeter-precision ranging to the Moon in 2006. Until now, a comprehensive validation of APOLLO system range accuracy has not been possible because of centimeter-scale deficiencies in computational models of the Earth-Moon range, and because APOLLO lacked an internal timing calibration system. Here, we report on the development of a system that enables in-situ calibration of the timing response of the APOLLO apparatus, simultaneous with lunar range measurements. The system was installed in August 2016. Preliminary results show that the APOLLO system can provide lunar range measurements with millimeter accuracy. Comment: 6 pages, 4 figures. Proceedings of the 20th International Workshop on Laser Ranging, Potsdam, Germany, October 9--14, 2016
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1707.00204 Zobrazit plný text záznamu View this record from Arxiv