Distinguishing features of CCD astrometry of faint GEO objects |
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Authors: | Vladimir Kouprianov |
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Institution: | Central (Pulkovo) Observatory of the Russian Academy of Sciences, Pulkovskoye Avenue, 65/1, 196140 St. Petersburg, Russia |
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Abstract: | The problem of initial reduction of CCD observations of faint GEO objects is studied. Several difficulties and questions arising in connection with image processing for this kind of observations are mentioned. A natural way to apply the PSF fitting technique to line-shaped trails of stars or GEO objects is described and illustrated by its implementation in the Apex II astronomical image processing package. Logical filtering technique to improve the automatic object detection is proposed. These rather convenient and versatile methods can increase astrometric and, to a lesser degree, photometric accuracy of faint GEO object observations. |
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Keywords: | GEO space debris Space debris observations Image processing PSF fitting CCD astrometry |
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