%META:TOPICINFO{author="ToddHunter" date="1205895990" format="1.0" version="1.1"}% %META:TOPICPARENT{name="CommissioningHistory"}% hi Bojan, all- Thursday morning of this past week we had a great MUSTANG (science) run and in the process collected a couple of quick OOF maps. These used daisy scans (90 sec each) on 3c279. The weather was calm and clear. I made a couple of tweaks to the data analysis: I made the order of the polynomial in the baseline fit variable and experimented with it to find an optimum (18th order about did it , vs 7th order used before which showed visible residuals in the timestream); and I implemented a direct sine-wave fit to the pulse tube signal in the off-source region, to do away with any possible effect of notch-filtering on the source signal since 1.4 Hz is right in our astronomy band. This works pretty well and so far is stable -- it's a standard (currently not-disablable) part of offsrcpolyfit tho not yet merged back into the main body of code. Some notes are at:

MustangOofAgbt08a05608

which also has a pointer to where you can find the OOF-format FITS files. cheers, Brian

-- ToddHunter - 19 Mar 2008