SOHO MDI CCD performance

Details SOHO MDI CCD performance SOHO MDI CCD performance

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004esasp.538..411s&link_type=abstract

In: Second Eddington Workshop: Stellar structure and habitable planet finding, 9 - 11 April 2003, Palermo, Italy. Edited by F. F

Physics

1

Stars: Structure, Planets: Exoplanets, Techniques: Photometric, Instrumentation: Detectors

Scientific paper

The Michelson Doppler Imager (MDI) instrument on the Solar and Heliospheric Observatory (SOHO) spacecraft is designed to study solar oscillations. While MDI was not designed for high photometric accuracy, I will describe how MDI data can be used to estimate the photometric stability of a CCD camera in a space environment and show that the system appears to be stable, at the relevant time-scales, to a level well beyond that required for both planet finding and asteroseismology. I will also present a simple minded analysis of various types of radiation induced damage. Given the similarity of the orbits (L1 for SOHO versus L2 for Eddington) some of these measurements may be useful for the design of Eddington.

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