The Flux-Pinned Interface for spacecraft is a maturing technology that offers unique benefits to a number of close-proximity spacecraft operations such as on-orbit reconfiguration and servicing, formation flying, and rendezvous and docking. As a part of this research effort, Cornell University's RAGNAR (Robust Autonomous Grappler for Noncontacting Actuation and Reconfiguration) team performed a series of microgravity experiments on Sept. 30 th and Oct. 1 st , 2010 via NASA's Facilitated Access to the Space environment for Technology (FAST) flight program. The goals of this project were to experimentally test a design of a CubeSat-scale flux-pinned interface for spacecraft and gather data that could validate the frozen-image model currently being used to develop simulations and controllers for this interface. This paper summarizes the experimental setup and frequency-and time-domain results of the flight experiment, and compares the empirically derived data against a set of simulations. The paper concludes with a summary of weaknesses and strengths of the model as a predictor for actual flight dynamics and lessons learned regarding the flux-pinned interface design.