| DEIMOS
Camera |
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| • | Motion
in camera confirmed by two independent |
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| methods |
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| – | Double-pass
test using a point source at the focal plane, |
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| a
mirror at the front of the camera, and the Cohu |
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| detector,
does not need spectrograph or science detector |
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| – | Analysis
by of ghost images taken with the 900 line |
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| grating;
separately measured detector motion must be |
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| subtracted
off |
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| – | Two
test agree well |
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