XSS-10 microsatellite is an auxiliary payload which will be used to demonstrate satellite navigation technology and inspect the Delta 2's second stage after it separates. The experimental micro-satellite is attached to the second stage. The XSS-10 craft will separate from the spent stage about 16 hours after launch to perform autonomous maneuvers around the rocket body for several hours. The entire mission will last approximately 24 hours. The XSS-10 is the first in a series of future micro-satellites the USAF plans to use for inspection, rendezvous and docking and close-up maneuvering around other space objects. The Air Force Research Laboratory (AFRL) is building and demonstrating this new class of low-cost “micro” satellites. This satellites is being flown under the Experimental Spacecraft System (XSS) Microsatellite Demonstration Project.