He Just... Tweeted It Out There
speculation on this tweet, in order of probability:
Trump did not write this tweet. Dan Scavino, his social media person, did. (This isn't speculation, Trump can't write complete sentences or attach pictures to tweets.)
This isn't a satellite photo, but most probably something else (possibly the highly secret eternally flying X-37 spaceplane). Resolution is too high, angle is slightly off. (other possibilities: Global Hawk drone, an Israel F-35 flight) (and boy oh boy if we leaked Israeli intel AGAIN)
It's a photo someone took of a intel briefing card. (you can see the camera flash and someone's shadow, probably Scavino's, in the center of the pic)
Given all the above, we may be looking at an extremely highly sensitive, top secret security briefing that Trump's mooks promptly took a pic of and posted to Twitter to dunk on Iran with. Quite possibly, literally without consulting with or telling anyone.
And that is HILARIOUS.