Corrected Bias Ramp




Telescope MDM 1.3m
Date 9/29/95
Instrument Nellie
Filter V
Exposure
Time
25
sec
Other Processed Image

Problem:

Here you can see that the differing bias level problem has been erased. The overscan was subtracted as a fit as opposed to a constant value. The noise structure still seem to differ in the ramped areas, but the sky levels are now the same across the chip.

Fix:

Done.

A second example of ramping

A third example of ramping

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