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Spy Satellite Target

Taken in the desert near Casa Grande, Arizona. These markers are located close to the RV park where we spent many winters.

The "target" is a group of concrete pads in that shape. There is a benchmark in the exact center. The operators of the spy satellites would take photos of these markers, and then check their locations against the exact positioning of the benchmark.

Image taken with phone and processed with GIMP.
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2 comments

Peter Chet said:

Hi again Robert.
Any chance you have the co-ordinates for the location.
Thanks .Peter
3 weeks ago

Robert Swanson replied to Peter Chet:

Corona Satellite Calibration Target, according to Google
Maps: 32°50'07. 111°51'36., 7 E 2nd St, Casa Grande, AZ 85122

I've added a screenshot of the Google Maps satellite view as a PiP.

There are at least 2 other targets like this in the Casa Grande area on the north side of the freeway, and can be hiked. If I recall correctly, this is the only one that I managed to photograph.

Another one that is not indicated by Google Maps:

maps.app.goo.gl/g5bjALjpzyLekq2Q9

right across hwy 84 from the Francisco Grande hotel/resort.

There are several that I can see, south of the I 8 freeway, but they are on private farmland.
3 weeks ago