A standard PLBS calibration of the Polar Camera was conducted on July
19, 1996 in the ISAS Electronics Lab. The cameras were powered on and
allowed to cool as far as they could. The CCD temperatures were in the
-35 to -36 deg C range during the calibration. Dark frames at 1, 10, and
60 s exposure time were taken before and after the calibration images,
with the camera enclosures removed for optimum CCD cooling, and the lens
caps on. In turn, each enclosure was put in place but not secured, and
the PLBS set up over the dome using the calibration jig. Ambient light
was excluded by means of 4 large black garbage bags, one inside the
next, which were pulled down around the circumference of the enclosure.
The standard calibration script used at Eureka was run to acquire the
calibration images. The results are as follows:

960719_0.rsw:	  96.9  38.7  44.5  40.6   0.0
960719_1.rsw:	  81.4  73.6  59.8  36.0   0.0