In the July 2023 and December 2023 runs, HgCd lamp data were taken (visit=104174..104175) using the following commands, to avoid turning on and off the lamp frequently.

pfilamps prepare hgcd=200
iic scienceArc exptime=45 arm=b,r duplicate=2

Robert pointed out two points which are different from the other lamp images.

I assume that you know that HgCd visits like 104174 are a little hard to find (the string HgCd doesn't appear anywhere that obsLog can find).  And that the headers are wrong (they claim that no arc lamps are on --but  I think that Craig knows about that)

I also can't reduce that frame, as its pfsConfig file seems to say that all the fibres are one of ['BROKENFIBER', 'BLACKSPOT', 'UNILLUMINATED'].  It looks as if all the fibres are illuminated, so I'm confused. If it thinks it's a .roached configuration, then we really have to sort out the meanings of fiberStatus and targetType for failed roachings.  If I change UNILLUMINATED to GOOD I can reduce the data.