OK, let's get this out of the way. NO I was not on drugs. Nothing at all. Stone cold sober.

Here's what happened.

I was lying on my back in the VIP area, and the time was 11:20pm. It was prior to Calvin Harris. I was looking up at the night sky and kind of focused on the Big Dipper. That's when a black triangle (it was actually more of a V shape) caught my eye. It was very, very difficult to make out, because it was black against the black sky, so I could see it's outline more than anything else. No lights. Moved in my visual perception from right to left. Basically from the camping area towards the main stage.

No lights - I really don't think it was a drone. It "glided", moved with a purpose. But not fast. And it did not move anything like a herky-jerky drone.

I don't think it was a plane, because again, there were no lights. No typical red/green nav lights or other indicators.

It was not a bird. I saw a fairly sharp outline. It was basically just black color against a black sky, but there was an object there and it was not organic.

The size of it was hard to tell, because I could not really grasp how high it was from the ground. It seemed like it was about where a small, Cessna type of plane would fly. Not really all that high. But If that height is correct, this thing was about 2 to 3 times the size of a small commuter plane.

It didn't move very fast, but it only lasted maybe 5 to 10 seconds. It did not "zoom off", but rather I lost sight of it somehow.

No sound at all, but then again, my surroundings were fairly loud with lots of people talking and the general hum of Coachella.

Willing to accept that I probably saw a military aircraft in stealth mode, but again, the total lack of any marking / navigation / safety lights seems strange.

No, I didn't get any photos. It happened so quickly that I had no chance, and besides, I don't think my crappy old phone would have picked it up anyhow.

I told my wife afterwards and she pretty much is set that I saw a drone, given the amount of drones flying around. 100% for sure, whatever it was, it was *not* a show drone.

Taking a chance here that someone else saw the same thing.

edit: I changed the shape description from boomerang to "V" because V is more accurate. It was sharp edges vs rounded nose.