Time Range      Source Name   Position
-----------------  ------------  --------
15:43:11 18:29:52  AR1121        S18W03
18:51:34 19:52:03  AR1121        S18W03
20:30:31 21:48:53  AR1121        S18W03
22:11:37 23:33:49  AR1121        S18W03