Difference: SpireDailyDarkObservations (3 vs. 4)

Revision 42011-12-01 - EdwardPolehampton

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META TOPICPARENT name="SpireCalibrationWeb"

SPIRE Spectrometer Daily Dark Sky Observations

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  The following table shows the dark sky observations that have been made in the normal observing mode (not the bright source mode). The mean instrument temperature is given for the dark sky observation. The final columns show the range of telescope temperatures over the entire day for the primary (M1) and secondary (M2) mirrors. The telescope temperatures for each day are also detailed on the Spacecraft and Observatory page - the variation in primary mirror temperature through the mission (taken from that page) is shown below.
  These observations are all publically available in the Herschel Science Archive.
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