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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: Detectors
Up: Instrument descriptors
Previous: Character descriptor FILTCAT
Petra Nass
1999-06-15