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SIM Grid Star Observations: Astrometry with a New High Dynamic Range Imaging Device

Published online by Cambridge University Press:  12 April 2016

L. Winter
L. Winter*
Affiliation:
U.S. Naval Observatory (AD), Washington, DC 20392 also with Universities Space Research Association (USRA), Washington, DC

Abstract

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First astrometric and photometric applications of the logarithmically scaled HDRC4 imager (developed by the Institut für Mikroelektronik Stuttgart, IMS, Germany) are presented. To test the HDRC4 imager at the telescope, a cooled camera had to be constructed by modifying a camera designed by IMS. First observations were performed with various telescopes at Hamburg Observatory, Germany. These showed the dynamic range to exceed 14 mag and the sensitivity to be comparable to that of the Kodak KAF 4200 CCD at a chip temperature of –35°C.

Type
Section 5. Observational Projects
Information
International Astronomical Union Colloquium , Volume 180: Towards Models and Constants for Sub-Microarcsecond Astrometry , March 2000 , pp. 380 - 385
Copyright
Copyright © US Naval Observatory 2000

References

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