... Internal fine calibration sources (FCS) provide a reproducible reference flux, that is absolutely calibrated during the mission by comparison with known celestial standards (stars, planets, asteroids). ...
... This series of seven original paintings by artist and planetary scientist William K. Hartmann depicts the impact and resulting effect of a 10 km asteroid believed to have hit the Yucatan Peninsula in Mexico about 65 million years ago. ...
... Optionally, the sources from the USNO A2.0 catalog can be superimposed on the image (Thi?baut & Bo?r 2001), an asteroid chart can be requested, and the DSS can be extracted using a preformatted SKYVIEW query. ...
... can b e used to estimate the probability for a given ob ject to b e of a particular typ e. This provides additional information on the nature of GSC ob jects (consider, e.g., galaxies' zone of avoidance, or the lack of asteroids at high elliptic latitudes ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/reprints/malkovo.pdf -- 961.7 Кб -- 14.01.1998 Похожие документы
... A positional error of 4 km translates to an uncertainty of 1 mas at 5.5 AU from the earth, so parallax errors are small for all but nearby passing asteroids and comets. ...
... Internal fine calibration sources (FCS) provide a reproducible reference flux, that is absolutely calibrated during the mission by comparison with known celestial standards (stars, planets, asteroids). ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/reprints/huths.pdf -- 204.1 Кб -- 14.04.1998 Похожие документы