Time Range      Source Name   Position
-----------------  ------------  --------
16:14:10 17:34:30  AR1057        N16W31
19:51:56 20:51:04  AR1057        N16W31
21:29:55 22:46:52  AR1057        N16W31
23:08:54 23:52:47  AR1057        N16W31