[mhb]

Can't they confirm that the altitude met the contest minimum based on how much earth curvature there is in the photos?

[jgrahamc]

They would have to compensate for artificial curvature introduced by the cameras they are using. If you look at the images you can clearly see that effect.

[mhb]

They should be able to do that. No?

[thwest]

Yes camera calibration is a well known problem. You have some nice straight lines from the launch pad structure you should be able to do it with.