Corona Satellite Calibration Targets
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- Опубліковано 21 жов 2024
- In this video you can see a little bit of cold war history in the Arizona desert. These cement X markers were installed by the Army Corps of Engineers in the 60's for US satellites to calibrate distance in photos taken from space over Russian land. Installed precisely 1 mile apart, these X markers, visible from space, help measure Russian inventory, increasing our accuracy to assess what the USSR capabilities were capable of.
You can find these sites yourself using Google satellite view and searching on the coordinates below (remove "Site #").
Corona Satellite Calibration Marker Locations in this video:
Site 1 32.821092, -111.671405
Site 2 32.821000, -111.688802
Site 3 32.820886, -111.738781
Site 4 32.806883, -111.739583
Site 5 32.820855, -111.757708
Site 6 32.806843, -111.757519
That is AMAZING! are there anymore locations that we know of ?
No, I believe this is the only location in this country. However that doesn't mean other US ally countries (UK, Japan, Australia) wouldn't have them, installed by US COE team.
These corona satellite calibration targets are very interesting 🧐. Until yesterday, I never knew the true use of these calibration targets. They’re all over Casa Grande, Arizona, but I don’t recall any in Buckeye, Arizona, when we lived there in 1993. Are these calibration markers all over the state of Arizona, or are they located only around Casa Grande? I never knew we had anything to do with the cold 🥶 war here (if we did). It was said that these calibration markers were installed at, or before 1953 (circa that time). They were used, until they fell into disuse around 1972. These markers are so interesting 🧐. I would have more thought 💭 that they were pit stops for men in army trucks 🛻, as if a place to hang out. Please comment me on any more information ℹ️, regarding these calibration markers. Some of them are also missing, or a concrete slab gone. Some even have the actual brass inlaid (or some kind of metal) marker gone, as if somebody took it home 🏠 as a souvenir. Your friend, Jeff.
The earliest marker I found was made in 1956, most of them built in the mid 60's. This is the only location that had calibration markers to my knowledge. As mentioned, it was originally 16 miles square, no where else but the Casa Grande area. Many of the markers have been removed by the property owners, as they are actually trash today. I'm sure you could get a souvenir if you had the desire, and tools. I didn't have the required tools, otherwise I might have considered getting one.
Ref3: closer look from airplane: ua-cam.com/video/qqR6YfI34Yc/v-deo.html