SPHERES SmoothNav Test Run

iss054e026580 (Jan. 31, 2018) --- Vertigo hardware used on Synchronized Position Hold, Engage, Reorient, Experimental Satellites (SPHERES) during a test run of Smoothing-Based Relative Navigation (SmoothNav). SPHERES is a self-contained, free-flying satellite to test autonomous capabilities and docking maneuvers within the International Space Station (ISS). SmoothNav software uses a unique computational method to estimate position and velocity in multi-satellite formations.