ENGINEEMNG ANALYSIS SUBSYSTEM ENVIRONMENT FOR SPACECRAFT ENGINEERING SUBSYSTEM MtSSfON Operations

Impwtant aspects of mission operations for spacecraft (S/C) sent to explore outer space are: engineering subsystem performance analysis, characterization, and commanding, all involving a substantial amount of human resources and time. Recent efforts have brought about several productivity enhancement measures within the mission operations area that incluck the streamlining of the operations process (pianning, sequencing, monitoring, analysis) and the development of a multim”ssion operations environment to support automation in analysis. In previous papers, we reported on the development of an integrated WC Engineering Analysis Subsystem Environment (EASE) prototype. EASE is a collection of computer programs on networked workstations providing a multimission, multisubsystem, environment that enables the operation of several WC simultaneously with fewer analysts, Through the use of automated tools, graphical data visualization and information management, EASE has achieved an increase in mission operations productivity. The EASE ~ototypa has been in use for some time in mission operations of the Galileo WC. Recentiy, a database, a trending tool, and a power sequence expansion tool have been added to EASE, This paper discusses these enhancements and provides an update of the operation experience with the realtime Galileo telemetry data,