THERMAL INFRARED SENSOR (TIRS) INSTRUMENT ENGINEERING SUPPORT SERVICES (TESS) TO SUPPORT THE LANDSAT DATA CONTINUITY MISSION(LDCM) THE PURPOSE OF THIS CONTRACT IS TO ACQUIRE ENGINEERING SERVICES, MATERIALS AND RELATED SERVICES TO THE TIRS PROJECT, AS REQUIRED, FOR THE FORMULATION, DESIGN, DEVELOPMENT, FABRICATION, INTEGRATION, TESTING, VERIFICATION, AND OPERATIONS OF SPACEFLIGHT AND GROUND SYSTEM HARDWARE AND SOFTWARE. TASKS ORDERS WILL BE ISSUED TO PERFORM SERVICES IN ALL ASPECTS OF THE TIRS INSTRUMENT DEVELOPMENT AND IMPLEMENTATION FOR COMPONENTS, SUBSYSTEMS, SYSTEMS, GROUND SYSTEM, SIMULATORS, MODELS, AND PROTOTYPES; CANDIDATE, FEASIBILITY, AND SYSTEMS DEFINITION STUDIES; PROJECT MANAGEMENT; SYSTEMS ENGINEERING; ANALYSIS; PRELIMINARY DESIGN; DETAILED DESIGN; FABRICATION; ASSEMBLY; INTEGRATION; TEST AND VERIFICATION; TEST INSTRUMENTATION; DATA SYSTEMS MANAGEMENT; POST DELIVERY SUPPORT, LAUNCH, ON-ORBIT AND POST-LAUNCH OPERATIONS; RESEARCH AND TECHNOLOGY UNIQUE TO SYSTEM DEVELOPMENT; PARTS AND MATERIALS, TECHNICAL FACILITIES SUPPORT, LOGISTICS, DOCUMENTATION; MAINTENANCE; SUSTAINING ENGINEERING; CONFIGURATION MANAGEMENT; INSTRUMENT ASSURANCE; ARCHITECTURAL TRADES, PERFORMANCE, COST, RISK ASSESSMENT, DOCUMENTATION, INFORMATION TECHNOLOGY (IT), PROJECT REVIEW AND PRESENTATION SUPPORT.