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Our final example is an instrument-description file used for
B and V magnitudes extracted from CCD frames.
The CCD is a front-illuminated chip, run at 180 K.
The filters are at ambient temperature, uncontrolled.
Bands are identified by name in the file of extracted values.
The instrumental description is in Table I.16.
Notice how this resembles the primitive UBV photometer in the first example.