Wednesday, May 27, 2009
Observing Report: May 26
Well I was finally able to open up last night around 8:30p. This didn't mean that the clouds had relented entirely. They persisted for a little longer, until around 9:00p. It turned out this wasn't too bad since I still needed to focus the telescope and get everything in order. I was able to observe 6 of my 8 objects and several of the photometric standard fields which are used to calibrate the images when it comes time to extract useful information from them. Conditions steadily improved over the course of the night and by 1:30a the seeing was down to about 1.2", allowing for some decent exposures. The data will still most likely not be of any use, though, since the conditions were not of the quality needed for scientific measurements. In the twilight of early morning, I was able to obtain sky flats in the R and I filters, or ~630nm and ~800nm pass bands. Since I was not able to obtain sky flats in the B and V filters, or ~430nm and ~540nm pass bands, I stayed up for about an hour longer in order to take dome flats in those two filters.