First the real data: [# 1407688704 Sun Aug 10 10:38:23 2014, 40.1999908425, -109.859666667, 4934] [# 1407688764 Sun Aug 10 10:39:24 2014, 40.1999908425, -109.859666667, 4934] [# 1407688849 Sun Aug 10 10:40:49 2014, 40.200021978, -109.859650183, 4897] [# 1407688884 Sun Aug 10 10:41:23 2014, 40.1999908425, -109.859666667, 4934] [# 1407688909 Sun Aug 10 10:41:49 2014, 40.200021978, -109.859650183, 4897] [# 1407688944 Sun Aug 10 10:42:23 2014, 40.2002802198, -109.859714286, 4996] [# 1407689004 Sun Aug 10 10:43:24 2014, 40.2008113553, -109.860694139, 6181] [# 1407689064 Sun Aug 10 10:44:24 2014, 40.2003791209, -109.862855311, 7247] [# 1407689124 Sun Aug 10 10:45:23 2014, 40.1984175824, -109.865512821, 8353] [# 1407689184 Sun Aug 10 10:46:23 2014, 40.1968003663, -109.867542125, 9537] [# 1407690204 Sun Aug 10 11:03:24 2014, 40.1862527473, -109.852701465, 29940] Time (Sheyne’s system Clock), Lat, Lon, Alt (in feet) This is also a datapoint that we captured by sight, the file that this was in got corrupted in some way, but this is the data you gave me: (12:02 PM, 62º, 200±3º) ==> 9.4 mi, 200±3º this is based on the time and ascent rate but the raw data is the first field, that is: 62º above the horizon, 200±3º CW from north. The bit after the arrow is my calculated location..It is very rough. I can say that most of the readings confirm that, but that about 25 minutes prior to that data point it was at ~50º up and just south of east.