GPS coordinate problems
Willem Ferguson
willemferguson at zoology.up.ac.za
Thu Jan 21 23:17:11 PST 2016
There are problems in the way the the GPS fixes are recorded in
Subsurface-mobile
Subsurface-Mobile Companion app
11:20 -27.5339 32.6842 | 11:20 -27.533912 32.68416
11:30 -27.5471 32.6696 | 11:34 -27.530935 32.688359
11:44 -27.5312 32.6878 | 11:59 -27.531462 32.68737
Above are coordinates for a specific dive recorded by Subsurface-mobile
as well as by the Companion app. The coordinates of the Companion app
are supported by an independent Garmin GPS. Maybe Dirk is right in that
there are rounding errors in the mobile application, but this is not the
most important problem. There are some "rogue" measurements, e.g. the
11:30 measurement of Subsurface-mobile in the above sequence.
Kind regards,
willem
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