Time Range      Source Name   Position
-----------------  ------------  --------
16:14:10 19:29:47  AR1057        N16W18
19:51:56 20:51:04  AR1057        N16W18
21:29:56 22:46:45  AR1057        N16W18
23:08:56 23:52:49  AR1057        N16W18