Time Range      Source Name   Position
-----------------  ------------  --------
16:07:09 18:15:48  AR 639        N13E21
18:38:17 19:47:49  AR 639        N13E21
20:14:18 23:03:44  AR 639        N13E21
23:27:47 23:50:45  AR 639        N13E21