PROCEDURE:

Dark current characteristics for both VIS and NIR detectors were characterized as a function of temperature during thermal vacuum testing. These characteristics include dark current magnitude, dark current noise, and dark current pixel-to-pixel variation or dark current flat field.  Eight sets of scans were obtained, each set at approximately the same temperature, during a temperature upswing.  The instrument temperature was not held constant during these scans, but they were obtained quickly.  For each of the eight sets, a subset of data was obtained, one data file for each integration time.  These times included 50, 100, 200, 400, 800, 2000ms.  For each file, 10 individual scans were obtained.

FILE DESCRIPTIONS:

  darkA_BBBB_CCCCCCCC_DDDDDD.rec
where:
A is a number 1 through 8 that indicates a set of darks taken at several integration times, each at approximately the same temperature.
BBBB is the integration time in milliseconds.
CCCCCCCC is the date in YYYYMMDD format.
DDDDDD is the time in HHMMSS format.

example:
  DARK1_0050__20030405_100301.rec
this filename indicates that this is the first set of dark scans obtained at an integration time of 50ms and taken on April 5, 2003 at 10:03:01