Contest #611: Calibration Target, Edwards Air Force Base, California, USA

Approximate location: 34°50’12.89″ N 117°44’34.00″ W

If you are trying to calibrate the lens of, say, a satellite pointing at the earth, or a high-altitude “spy plane”, you need something fairly large to look at, with specific markings that you can resolve and verify.

Hence the existence of a number of calibration targets such as these in the middle of the Mojave desert, part of Edwards Air Force Base.

Those who found this (all before the hint) were:

  • hhgygy
  • Walter_V_R
  • Nancy Barbato
  • Eloy Cano
  • Martin de Bock
  • Paul Voestermans
  • Garfield
  • Lighthouse
  • Phil Ower
  • Farceur