The Prairie View Solar Observatory operates up to five days per week, Monday through Friday, weather permitting. The observations were carried out only on listed dates.
Unless otherwise indicated in a caption, images were obtained our Gregorian Vacuum Telescope equipped with the SBIG ST-7 CCD camera, a Daystar 0.43 Å (from 2008) or 0.5 Å (before 2008) Hydrogen alpha filter and a neutral density filter (10% transmission). The exposure time of disk images and prominence images before 2008 is 0.12s. Starting from 2008, the exposure times of prominence images are 2-3 s.