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During teleoperation in space, there are two major sources of performance degradation: (1) spatiotemporal displacements in visual feedback; confounded by (2) microgravity effects, attributable to kinetic and inertial properties of large masses maneuvered in low gravity. Both sources contributed to the Progress-Mir collision in 1997. This report describes findings from two sets of studies directed at modeling possible effects on teleoperation tracking performance of spatial, temporal, and microgravity perturbations in visual feedback presented to the teleoperator. In the first set of studies, effects of both temporal and angular displacements in visual feedback on control of tracking behavior by individual subjects were evaluated under conditions of both continuous pursuit and discrete movement tracking.