24b - 1 NASA’s Goddard Space Flight Center LRO Safety Dave Bogart Code 302 August 16-17, 2005

24b - 2 NASA’s Goddard Space Flight Center LRO System Safety - Requirements LRO Spacecraft PAIP NPD NASA Policy for Safety and Mission Success Level I Level II Level III NPR NASA Safety Manual AFSPCMAN Range Safety User Requirements RLEP Mission Assurance Requirements (MAR) LRO System Safety Program Plan Instruments’ Performance Assurance Implementation Plans (PAIPs) Instruments’ System Safety Program Plans NPD NASA Safety and Health Program NASA-STD ELV Payload Safety Review Process

24b - 3 NASA’s Goddard Space Flight Center LRO Systems Safety - Requirements NASA Safety Policy NPD defines LRO’s safety objectives NASA Safety Manual NPR8715.3, and Range Safety User Requirements Manual AFSCM (Volumes 1, 3 and 6) define process, design, and operational safety requirements Requirements for operations/processing: –At GSFC: GPD , “Goddard Space Flight Center Safety Policy,” and 540-PG , “Mechanical Systems Safety Manual Volume I and II” –At Launch Site: Range Safety User Requirements Manual, AFSCM (Volume 6)

24b - 4 NASA’s Goddard Space Flight Center LRO System Safety - Process Develop LRO System Safety Program Plan (SSPP) and oversee implementation of SSPP Perform Preliminary Hazard Analysis (PHA) that lists hazards, estimated severity and frequency, and potential controls Perform System Hazard Analysis (SHA) to verify system compliance with safety requirements and recommend actions to eliminate or control risks Perform Operations Hazards Analysis (OHA) to demonstrate planned I&T activities meet facility safety requirements Perform Operating and Support Hazard Analysis (OSHA) to evaluate procedurally controlled activities for hazards and controls during prelaunch processing. System Safety Manager is part of the LRO Systems Engineering team and participates in risk assessment.

24b - 5 NASA’s Goddard Space Flight Center LRO System Safety - Deliverables LRO System Safety Program Plan (SSPP) Hazard Analyses (PHA, SHA, OHA, O&SHA) Safety Compliance Checklist Missile System Prelaunch Safety Package (MSPSP) Hazard Control Verification and Tracking Ground Operations Procedures Safety Noncompliance Requests System safety deliverables from the Instruments will be used as inputs to the LRO level safety documents

24b - 6 NASA’s Goddard Space Flight Center LRO System Safety - Hazards Pressure Systems (Propulsion) Fuel (oxidizer) Ordnance (Pyrovalves)/ Pyro release Mechanisms Batteries Ionizing Radiation (LEND, CRaTER for calibration) Non-Ionizing Radiation –Laser –RF Structure and Mechanism Deployables (Solar Arrays, HGA) GSE –Electrical –Pressure Material Handling Equipment

24b - 7 NASA’s Goddard Space Flight Center Safety Conclusion The LRO safety requirements are well understood. Preliminary hazards have been identified and plans are in place. Mitigation activity planned is feasible. LRO safety is ready to proceed to PDR

24b - 8 NASA’s Goddard Space Flight Center Back up charts Reliability Code 302 Reliability engineers coordinate the reliability program. Reliability analyses are conducted (FMEAs, FTAs, Parts Stress Analysis, and Worst Case Analysis) Comparative numerical reliability assessments and reliability predictions are performed. Trend data will be collected and monitored. Limited life items are identified with the LRO Materials Engineer and tracked as needed (operating times, cycles, etc.) Active Risk Management (ARM) tool used across project to manage risk Formal Risk Management Board established, meetings held monthly