Message posted by Joerg (Webmaster) on December 19, 2018 at 12:43:08 PST:

Most of the orbits intersect right over the BEEF in Area 4. N258SA is classified as an aerial surveying aircraft.

My best guess they are either supporting a test on the ground or calibrating/testing onboard systems.

In Reply to: N258SA over Area 4 posted by Gregos on December 19, 2018 at 11:14:38 PST:

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