Interesting... It landed a full 245m higher than the takeoff. Fly near a mountain?
Nope, but if you look at the speed (green graph) you'll see it took off at the same altitude as landing.
The "wrong" data is when I started the logger, it was looking for the satellites.
I should have removed it, but too lazy.......
Did you have some outlaying readings that you had to cut out? I know my Viper wasn't going 258 mph.
Yes it did, but that's the cold start from the logger, now I update the A-GPS ephemerids so it can go hot faster and less false data
Which GPS did you use?
I use a Canmore GT-730FL-S USB GPS Tracker Stick Data Logger (Built-in Rechargeable battery, WAAS, A-GPS, 256,000 Waypoints, 65 channels, Windows XP / Vista / 7 Compatible)
It's a photo tagger, the thing some guys use for GPS tagging their pictures. So, instead of having to press the button to record the GPS position I programmed it to be on logging mode all the time when ON.
It's small and the battery does last long, it's 77.48x28x17.77 mm; weights around 25gr.
Quite happy with it.