File:PIA07944 Mars Express Seen by Mars Global Surveyor.jpg
PIA07944_Mars_Express_Seen_by_Mars_Global_Surveyor.jpg (254 × 156 像素,檔案大小:1 KB,MIME 類型:image/jpeg)
說明
摘要
[編輯]描述PIA07944 Mars Express Seen by Mars Global Surveyor.jpg |
English: This picture of the European Space Agency's Mars Express spacecraft by the Mars Orbiter Camera on NASA's Mars Global Surveyor is from the first successful imaging of any spacecraft orbiting Mars taken by another spacecraft orbiting Mars. The picture is a composite of two views of Mars Express that Mars Orbiter Camera acquired on April 20, 2005, from distances of about 250 and 370 kilometers (155 and 229 miles).
Owing to the large distance between Mars Global Surveyor and Mars Express when the two views could be acquired and to a substantial cross-track component of apparent motion for which no correction could be made, Mars Express appears in the image as a narrow blur rather than as a well-defined spacecraft. It appears in the image to be about 1.5 meters in the small dimension and 15 meters in the long dimension, which is consistent with the viewing distance, pixel scale, and encounter geometry. The components of Mars Express when viewed from the same angle as this image can be seen in an artist's rendition and an annotated rendition, of the spacecraft. Mars Express was launched on June 3, 2003, and reached Mars on Dec. 25, 2003. Mars Global Surveyor left Earth on Nov. 7, 1996, and arrived in Mars orbit on Sept. 12, 1997. JPL, a division of the California Institute of Technology, Pasadena, manages Mars Global Surveyor for NASA's Science Mission Directorate, Washington, D.C. |
日期 | (published 2005年5月19日) |
來源 | Catalog page · Full-res (JPEG · TIFF) |
作者 | NASA/JPL/MSSS |
其他版本 |
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This media is a product of the Mars Global Surveyor mission Credit and attribution belongs to the Mars Orbiter Camera (MOC) team, NASA/JPL/MSSS |
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[編輯]Public domainPublic domainfalsefalse |
本作品由NASA創作,屬於公有領域。根據NASA的版權政策:“NASA的創作除非另有聲明否則不受版權保護。”(參見:Template:PD-USGov/zh,NASA版權政策或JPL圖像使用政策) | ||
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