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Character descriptor FILTSTAT

This descriptor specifies the state of filter temperature control. It contains the value 'REGULATED' if filter temperature is regulated; 'MEASURED' if filter temperature is measured; and 'DOME' if filters are unregulated, and approximately at dome temperature.

If FILTSTAT= 'REGULATED', there may be a Real*4 descriptor named FILTTEMP in the instrumental ``.tbl'' file, giving the temperature of the set-point in kelvins. If FILTSTAT= 'MEASURED', there should be a data column named FILTTEMP in the data files (see next section) that contains the measured filter temperature.


 
Table: All possible Descriptors for the instrumental ``.tbl'' file
Name Contents Variable Type When used
INSTNAM name of instrument C*72 string always
NFILTCAR no. of filter carriers I integer always
FILTCAT filter catalog name C*80 string always
FILTSTAT filter thermostating C*9 string always
FILTTEMP filter temperature R*4 real FILTSTAT= REGULATED
NDETS no. of detectors I integer always
CONDITION condition of optics C*7 string always
 


next up previous contents
Next: Detectors Up: Instrument descriptors Previous: Character descriptor FILTCAT
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1999-06-15