The follow is a cross reference between the obsolete "CCD Numbers" used as the detpars.detname detector name with the IRAF/ICE data acquisition system and the current AzCam software system names.
ccd20
Bok B&C Spectrograph
ccd21
61" Direct Imaging
ccd26
VATT 2kx2k Direct Imaging
ccd29
AO WFS
ccd33
AO ACES 2kx4k
ccd34
MMT Red Channel
ccd35
MMT Blue Channel
Retired....
ccd22
ccd23
ccd24
ccd25
ccd27
61" Spectroscopy
ccd28
AO 2kx4k
ccd30
ITL Test Device
ccd31
ccd32
