| 講演抄録/キーワード |
| 講演名 |
2009-11-02 10:45
High-Accuracy VLBI Observations for the Lunar Gravity Measurements by SELENE Mission ○Qinghui Liu(SHAO)・Fuyuhiko Kikuchi・Koji Matsumoto・Sander Goossens・Hideo Hanada(NAOJ)・Takahiro Iwata(JAXA)・Nobuyuki Kawano(NAOJ) SANE2009-86 |
| 抄録 |
(和) |
The Japanese lunar mission, SELENE (Kaguya) consists of a main satellite and two small satellites, Rstar and Vstar. In same-beam VLBI observations of Rstar and Vstar, phase fluctuations caused by atmosphere, ionosphere and instruments were reduced to a low level of 1-2 deg, and the differential phase delay between Rstar and Vstar was obtained with a very low error of 2 pico-seconds. We performed orbit determination for Rstar and Vstar, the accuracy was much improved from a few tens meters when using only Doppler and range data, to a level of about 10 m when same-beam VLBI data are also used. In addition, the lunar gravity field model was also improved by combing VLBI data. |
| (英) |
The Japanese lunar mission, SELENE (Kaguya) consists of a main satellite and two small satellites, Rstar and Vstar. In same-beam VLBI observations of Rstar and Vstar, phase fluctuations caused by atmosphere, ionosphere and instruments were reduced to a low level of 1-2 deg, and the differential phase delay between Rstar and Vstar was obtained with a very low error of 2 pico-seconds. We performed orbit determination for Rstar and Vstar, the accuracy was much improved from a few tens meters when using only Doppler and range data, to a level of about 10 m when same-beam VLBI data are also used. In addition, the lunar gravity field model was also improved by combing VLBI data. |
| キーワード |
(和) |
Lunar gravity field / Orbit determination / Same-beam VLBI / SELENE / / / / |
| (英) |
Lunar gravity field / Orbit determination / Same-beam VLBI / SELENE / / / / |
| 文献情報 |
信学技報, vol. 109, no. 265, SANE2009-86, pp. 21-24, 2009年11月. |
| 資料番号 |
SANE2009-86 |
| 発行日 |
2009-10-26 (SANE) |
| ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
| PDFダウンロード |
SANE2009-86 |
|