The lessons learned from investigating the Upper Atmosphere Research Satellite (UARS) in-e ight dynamics are summarized.Keyto thesuccessofthestudywastheapplicationofknowledgediscoveryindatabasetechniques.The isolationofdisturbanceswascriticaltoidentifyingtheeffectofindividualdisturbancesonthespacecraft.Numerous types of data were examined for spatial and frequency correlation as a means of discovering hidden knowledge of thedynamicbehaviorofthespacecraftand itsinstruments. Two in-e ightdynamicsexperimentswereconductedon UARS to providetheinvestigation with casesofisolatedand combined instrument and environmental disturbances that were not attainable during the normal operation of the spacecraft. Flight data from the experiments were augmented with data collected from the e rst 737 days after launch. This study identie ed many disturbances that greatly impacted the spacecraft line-of-sight pointing but were ignored from prelaunch analysis. The spacecraft attitude response was signie cantly ine uenced by the thermal elastic bending of the solar array, the solar array gear drive, orientation of the solar array, and instrument motion. These disturbances can now be included in a knowledge base for future prelaunch analysis.