Error estimation of Doppler measurements in SELENE project

Details Error estimation of Doppler measurements in SELENE project Error estimation of Doppler measurements in SELENE project

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufm.g52a0969k&link_type=abstract

American Geophysical Union, Fall Meeting 2002, abstract #G52A-0969

Physics

1221 Lunar Geodesy And Gravity (6250), 1227 Planetary Geodesy And Gravity (5420, 5714, 6019)

Scientific paper

The study on orbital motion and the interior structure of the Moon and planets is one of the methods to approach for the revolution as a dynamical system and the origin of the solar system. It is a powerful method to measure the gravity fields obtained by the orbital motion of a spacecraft in order to estimate the inner layer and the density structure of the Moon and the planets. Doppler measurement is one of the major methods of positioning of spacecrafts in space. In order to study the lunar gravity field precisely, Spacecrafts in SELENE project will be tracked by 2-way and 4-way Doppler measurements with the accuracies of 0.2mm/s and 1mm/s in range rate, respectively. Error sources of Doppler measurements that affect the accuracies are summarized. Especially, conditions of phase noise in tracking station are shown in detail.

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