Deleted- @Bob is right! I learn something new every day.
Sorry, just read your post, you right @Bob , your explanation is the most likely.For range grazing studies. Compare grazing outside if the cages to ungrazed. I put a few of those out many years ago.
But a white shadow ?!?!?Same explanation as this, I'm guessing. https://backcountrypost.com/threads/weird-map-stuff.1795/#post-61354
I'm not saying we figured it out, but it looks like the same phenomenon. White shadow on that plane too, but much closer. Perhaps because the patrol plane was much closer to the ground than the commercial jet. Perhaps google has an algorithm that tries to remove planes from sat imagery and this is what it looks like when it fails? For all the planes in the air, you'd think this would be a lot more common in sat imagery.But a white shadow ?!?!?
I've had a shadow blow by me on the ground and looked up and saw the plane at 15K' or so. It was black of course. Hmmm...
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