Date of Obs. 17/01/2018 Starting time (UT) 11:55:20 Ending time (UT) 12:00:39 Number of images 111 Gband exposure time (ms) 20 Halpha exposure time (ms) 200 Location on disk (arcsec) -752.17 -50.75 Gband Image Size (pixels) 904 904 Halpha Image Size (pixels) 856 856 Plate Scale (arcsec/pixel) 0.19 0.19 --------