Very high plane

[Annacollins]

Just been watching a plane being tracked that says its flying at 60,000 ft?
Any body got any ideas what it might be ?

 

[YSWG]

Could've been one of the Google Loon's (balloon project)? Some of the loons are fitted (not all) with ADS-B and fly at that level.

 

[kucengemok]

Just been watching a plane being tracked that says its flying at 60,000 ft?
Any body got any ideas what it might be ?

the recorded speed?

 

[Annacollins]

the recorded speed?

471 mph , didn't seem strange .. Just the hight that shocked me