Time Range      Source Name   Position
-----------------  ------------  --------
17:58:14 17:58:30  AR  19        S19W56
18:38:40 19:55:53  AR  19        S18W32
20:20:48 22:01:53  AR  19        S18W32
22:25:33 23:52:46  AR  19        S18W32