Got a note today from a stealth chaser who noticed what looks like a secret UAV (possibly RQ-170 Sentinel) in open storage at the Lockheed Palmdale Plant. The image was captured by a commercial imaging satellite on December 4th of last year - ironically on the same day a RQ-170 crashed in Iran.
The drone - parked next to an F-16 - looks like its wearing some sort of protective covering - a form fitting tarp.
View Lockheed Martin Skunk Works in a larger map
Click on the image below for a closer view: