October 1999: report on gain change on CCD03

The gain of CCD03 since September 28th, 1999 is set to 1.4 electron
per ADU vs. 2.1 electron per ADU for the observing run that took
place between September 3, 1999 and September 17, 1999.

The gain on the video chain of CCD03 has been scaled down by factor 
of 1.5 as to make the CCD signal from CCD03 more homogeneous with
the other detectors in the mosaic.

Gain/noise
----------

Gain (e-/ADU):          1.8     1.7     1.4     1.5     1.8     1.5
                        1.5     1.5     1.6     1.4     1.3     1.7

Noise (e-):             5.0     5.1     5.9     3.9     3.4	5.2
                        4.2     3.0     5.4     4.6    10.5     3.4

Noise (ADU):            2.8     3.0     4.2     2.6     2.2     3.5
                        2.8     2.0     3.4     3.3     8.1     2.0


Jean-Charles Cuillandre
Canada-France-Hawaii Telescope Corporation, 1999
E-mail: jcc@cfht.hawaii.edu