What just happened? Magnetic anomaly?

[MPD352]

The further north you go the lower on the horizon the GPS satellites are. Dipping into a valley, especially an east-west running valley could put you in a GPS shadow.

 

[Osmoderma]

Once I started my P3P offroad from the roof of my car. It worked this time but at next flight a day later (starting from normal ground) I had these magnetic errors and had to recalibrate.

 

[Ox321]

Thanks Canadian, I did read that somewhere to about the compass and being in the north, but I have been flying it all over town the last couple days with out issue. The only thing that changed tonight was instead of using my iPhone 6 plus, with the Pilot App. I used my iPad Air 2 for the first time. Wonder if its possible the app had something to do with it. The only other thing I wonder is that the area I was in was blasted last year to collect gravel etc. So am wondering if there was some magnetized rock exposed or something within the area I was in. Just also found out to from friend on facebook, there's another fella here with a P3 experiencing the same issue.

The mid-night sun is pretty nice but can really tough on ya and throw your circadian rhythm outta wack. Kinda like the P3 compass

Same thing happened to me the first time I used it with a new iPad Air2. Took it up a few feet and hovered then it just took off like a bat out if hell. After a scary few minutes of no control and no visual it returned to home. Still not sure what happened, but no problems on subsequent fights...

 

[Wibble]

I doubt you are too far North. Parts of Britain go as far North as 60 degrees and you are at 63.
Could well have been magnetic ore. I know my compass used to go crazy sometimes when I used to be a mountaineer in a past life!
I wonder what effect the Aurora would have though? You may have had a localised electromagnetic storm you won't always see them.

 

[Canadian]

The magnetic ore idea is a good one I think. it should be possible to find out.