THE MOSES II EFFORT IS A FIVE-YEAR SOLE-SOURCE FOLLOW-ON CONTRACT TO MAINTAIN THE HEALTH AND SAFETY OF THE HST OBSERVATORY THROUGH THE NEXT PHASE OF ITS SCIENCE MISSION. THE SCOPE OF THIS FOLLOW-ON EFFORT INCLUDES CONDUCTING ALL ELEMENTS OF HST OPERATIONS OTHER THAN SCIENCE OPERATIONS, AND TO PERFORM SYSTEMS ENGINEERING TASKS REQUIRED TO PROPERLY MAINTAIN HST FLIGHT AND GROUND SYSTEMS.MISSION OPERATIONS RESPONSIBILITIES INCLUDE SAFE AND EFFICIENT CONTROL AND UTILIZATION OF THE HST OBSERVATORY, MAINTENANCE AND OPERATION OF HST-UNIQUE FACILITIES AND EQUIPMENT, AS WELL AS CREATION, MAINTENANCE, AND UTILIZATION OF HST OPERATIONS PROCESSES AND PROCEDURES. CRITICAL SYSTEMS ENGINEERING RESPONSIBILITIES CONSIST OF OPTIMIZING MISSION SYSTEM CAPABILITIES TO MAXIMIZE HST OPERATIONS EFFECTIVENESS AND SCIENCE PRODUCTIVITY. ESSENTIAL MANAGEMENT REQUIREMENTS INCLUDE PROVIDING A TECHNICAL STAFF POSSESSING IN-DEPTH KNOWLEDGE OF HST S VARIED, COMPLEX, AND UNIQUE FLIGHT AND GROUND SYSTEMS, ENSURING SUCCESSFUL ACCOMPLISHMENT OF THE DIVERSE TASKS NECESSARY TO EFFECTIVELY CONDUCT HST MISSION OPERATIONS AND SYSTEMS ENGINEERING AS WELL AS TO MANAGE AND REPORT CONTRACT ELEMENT COST AND SCHEDULE PERFORMANCE.