Weather Report for January 5, 2017

The night started with thin, scattered cirrus clouds distributed all over the sky. This was of little consequence for the spectropolarimetry. On the other hand, several major clearings between cirrus cloud formations had to utilized to obtain reliable photometry. The seeing started out at about 1.5 arcsec, but degraded to around 3 arcsec as the night wore on. The humidity rose steadily and finally reached a point were operations had to be halted about two hours before the end of the night. The sky during these final two hours was generally overcast.