I recently figured out that for some of my past activities wrong tracks are shown in the map!
For example:
http://connect.garmin.com/activity/296489774
Overall distance: 51,59km
The track shows a wrong track with 18km and switched start and endpoint.
It seems that a previous activity from the same day is shown in the map, and used for exporting the data.
When exporting the activity i figured out the following:
<Activity Sport="Biking">
<Id>2013-04-11T15:10:08.000Z</Id>
<Lap StartTime="2013-04-11T15:10:08.000Z">
<TotalTimeSeconds>7981.0</TotalTimeSeconds>
<DistanceMeters>51586.86</DistanceMeters>
<Track>
<Trackpoint>
<Time>2013-04-11T05:15:08.000Z</Time>
<Position>
This data is corrupted! Since the first Trackpoint ist the first of the activity and the times do not fit!
When I export the previous track from the same day and make a diff between both files i get the following result:
diff activity_296489758.tcx activity_296489774.tcx
11,15c11,15
< <Id>2013-04-11T05:15:08.000Z</Id>
< <Lap StartTime="2013-04-11T05:15:08.000Z">
< <TotalTimeSeconds>2811.0</TotalTimeSeconds>
< <DistanceMeters>17991.43</DistanceMeters>
< <MaximumSpeed>11.162777195203875</MaximumSpeed>
---
> <Id>2013-04-11T15:10:08.000Z</Id>
> <Lap StartTime="2013-04-11T15:10:08.000Z">
> <TotalTimeSeconds>7981.0</TotalTimeSeconds>
> <DistanceMeters>51586.86</DistanceMeters>
> <MaximumSpeed>17.914814751390633</MaximumSpeed>
18c18
< <Value>160</Value>
---
> <Value>149</Value>
21c21
< <Value>171</Value>
---
> <Value>170</Value>
9033c9033
< <AvgSpeed>6.400365579198719</AvgSpeed>
---
> <AvgSpeed>6.4637089051247205</AvgSpeed>
That looks really strange, since all the gps data (waypoints) are the same!
Question 1: Has anybody else the same problem seen?
Question 2: Is all my data for this corrupt tracks are gone?
Regards
Stefan
