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Launch Systems | Space Systems | Mission Engineering

Spacecraft Navigation Using X-Ray Pulsars

Abstract: The term XNAV (X-ray navigation) is used to describe a variety of means of using celestial X-ray source observations for spacecraft attitude, position, velocity, and time determination. Several classes of source observations can be utilized for different...

ORS Mission Utility and Measures of Effectiveness

Abstract: This paper briefly summarizes the traditional space system mission utility analysis process in order to establish a framework for utility analysis for Operationally Responsive Space (ORS). We then define both general and specific ORS Measures of...