The CubeSat Proximity Operations Demonstration (CPOD) mission has ended after the spacecrafts fuel was depleted. The mission was unable to demonstrate rendezvous, proximity operations and docking (RPOD) maneuvers as planned. Multiple rendezvous attempts brought the CPOD spacecraft from hundreds of miles to within a few hundred yards of one another, but the CPOD mission was unable to complete the full planned set of maneuvers due to challenges with the system-level guidance, navigation, and control systems, which ultimately led to the depletion of all fuel before final docking could be completed.