Thomas Weissenberger <<thomas.weissenberger01>>
writes:

I have analyzed the altitudes at goal from my tracklog that I
uploaded to XContest (SensBox backup IGC file). I landed at 15:54:47
PM (GPS, QNH and given heights on task board):

- official map altitude in goal 1020 msl.

- GPS alt. In goal 1084 msl.

- QNH alt. In goal 1059 msl.

- ground alt. 1088 msl.

- AGL: 0m.

This means GPS and QNH altitudes both showing higher numbers than map altitudes by 64 m (GPS) and 39 m (QNH), 24 minutes after my maximum altitude, which is
closer than counted after launch.

Launch and goal height: