Study 000140: Coronal wave study The second raster should be repeated as many times as possible. Typical run is around 5h (3 rasters repeat of the second raster). The slit/slot should be positioned over quiet Sun, not directly over the active region of interest. If the active region is in the northern (southern) hemisphere, please position the slit/slot over quiet Sun, just south (north) of the active region. WARNING: First and second raster runs with 40" slot and 2" slit, respectively.