Eric Deutsch and I are interested in starting to compare data from the 10 micron cloud camera, the MT and the 3.5m night logs. I believe that it has always been the plan to do this, but currently there is no easy way of doing it. Eric has been saving all of the cloud camera images, and I believe that these also get saved with any MT data. In addition, Michael Richmond has a script that parses the APO night logs. So it would seem that we just need a way of knowing what nights data has been taken with the MT (and has been reduced), so that Eric and I can sit down and do the comparisons. I was wondering if it might be possible to set up a system that gathers all the pertinent data together in one place? At the beginning, I think we will just do some statistical comparisons, so we don't necessarily need the MT and cloud camera frames, just the QA output from them. For example, the extinction values from the MT, the temperature from the night logs, and the characteristics (mean, variance) from the cloud camera, all as a function of time. It might be just as easy for Eric and I to gather all the data together at once some time this summer. However, if from now until summer everytime MT data gets run through MTPIPE we could store the pertinent information somewhere alongside the pertinent cloud camera and night log data, then it might make the analysis a lot easier. Please let me know if you think this would be a useful thing to do and if you have any ideas about how to do it. I was thinking about something along the lines of generating a file like the following every night: MT info Cloud cam info APO night log info ---------------------- ------------------------------ --------------------- exinction seeing etc. mean sigma skewness kurtosis temp wind sky precip time Where info from the MT could be either just from r' or even all the filters. This would be very valuable in terms of figuring out if we can use the cloud camera to determine when conditions are/have become photometric, in addition to being valuable as weather input to the SDSS strategy simulations. Gordon APO APO APO APO APO Apache Point Observatory 3.5m APO APO APO APO APO This is message 2 in the apo-monitor archive. You can find APO the archive on http://www.astro.princeton.edu/APO/apo-monitor/INDEX.html APO To join/leave the list, send mail to apo35-request@astro.princeton.edu APO To post a message, mail it to apo-monitor@astro.princeton.edu APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO