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CTE in Space Astrometry

Published online by Cambridge University Press:  01 October 2007

V. Kozhurina-Platais ,
M. Sirianni  and
M. Chiaberge
V. Kozhurina-Platais
Affiliation:
Space Telescope Science Institute, 3700 San Martin Dr. Baltimore, 21904, USA email: verap@stsci.edu
M. Sirianni
Affiliation:
Space Telescope Science Institute, 3700 San Martin Dr. Baltimore, 21904, USA email: verap@stsci.edu European Space Agency email: sirianni@stsci.edu, marcoc@stsci.edu
M. Chiaberge
Affiliation:
Space Telescope Science Institute, 3700 San Martin Dr. Baltimore, 21904, USA email: verap@stsci.edu European Space Agency email: sirianni@stsci.edu, marcoc@stsci.edu
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Abstract

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An imperfect CTE in CCD detectors is one of the most important instrumental issues affecting both photometry and astrometry, especially in space-based observations. We discuss the CTE effect in the images taken with the Hubble Space Telescope's, Advanced Camera for Surveys in Wide Field Channel (ACS/WFC). ACS is the only imaging instrument capable of delivering sub-mas astrometry from a single observation, and it is important to take into account any instrumental systematic in positions such as the CTE effect.

Keywords

astrometrytechniques: image processinginstrumentation: detectors
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S248: A Giant Step: from Milli- to Micro-arcsecond Astrometry , October 2007 , pp. 272 - 273
Copyright
Copyright © International Astronomical Union 2008

References

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Kozhurina-Platais, V., et al. , 2007, ACS Instrument Science Report, 2007-04, (Baltimore:STScI)Google Scholar
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