講演名 | 2009-11-02 High-Accuracy VLBI Observations for the Lunar Gravity Measurements by SELENE Mission(WSANE 2009 (Workshop for Space, Aeronautical and Navigational Electronics)) , |
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抄録(和) | |
抄録(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 10m 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) | |
キーワード(英) | Lunar gravity field / Orbit determination / Same-beam VLBI / SELENE |
資料番号 | SANE2009-86 |
発行日 |
研究会情報 | |
研究会 | SANE |
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開催期間 | 2009/10/26(から1日開催) |
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講演論文情報詳細 | |
申込み研究会 | Space, Aeronautical and Navigational Electronics (SANE) |
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本文の言語 | ENG |
タイトル(和) | |
サブタイトル(和) | |
タイトル(英) | High-Accuracy VLBI Observations for the Lunar Gravity Measurements by SELENE Mission(WSANE 2009 (Workshop for Space, Aeronautical and Navigational Electronics)) |
サブタイトル(和) | |
キーワード(1)(和/英) | / Lunar gravity field |
第 1 著者 氏名(和/英) | / Qinghui LIU |
第 1 著者 所属(和/英) | Shanghai Astronomical Observatory |
発表年月日 | 2009-11-02 |
資料番号 | SANE2009-86 |
巻番号(vol) | vol.109 |
号番号(no) | 265 |
ページ範囲 | pp.- |
ページ数 | 4 |
発行日 |