THEMIS Instrument CDR(1) UCB, April 19 & 20, 2004 Mission Assurance Critical Design Review Ron Jackson University of California - Berkeley

THEMIS Instrument CDR(1) UCB, April 19 & 20, 2004 Requirements Performance Assurance Implementation Plan General Assurance Review Performance Verification Safety EEE parts Materials and Process Control Design Assurance Quality Assurance Contamination Control Software Assurance

THEMIS Instrument CDR(1) UCB, April 19 & 20, 2004 General Previously Designed, Fabricated of Flown Hardware - ESA, DCB, IDPU & EEE parts Flow-Down of PA Requirements - Subcontractors, Vendors Surveillance - Work Activities, Operations and documentation reviewed by UCB/GSFC SR&QA Verification - PI will provide any documents and records outlined in the PAIP upon request to GSFC

THEMIS Instrument CDR(1) UCB, April 19 & 20, 2004 ASSURANCE REVIEW GSFC Flight Assurance - Peer reviews and system level Reviews Flight Assurance Review Program - PDR - CDR - PER - PSR

THEMIS Instrument CDR(1) UCB, April 19 & 20, 2004 Performance Verification Verification Matrix - Shows the flow-down of science and Mission Requirements Environmental Test Plan – Listed all the Environmental test to be performed Verification Test – All test conducted at the Component level and above Verification Test Report – This report shows how well the data correspond to the expected results Demonstration of Failure-Free Operation – Prior to Launch 100 hours of trouble- free operation

THEMIS Instrument CDR(1) UCB, April 19 & 20, 2004 SAFETY General - Safety Plan that identifies and controls hazards to personnel, facilities, ground support equipment, and the flight system during all stages of development. - Write Safety Plan per EWR Write Hazards Assessment Report - Procedure Approval - Safety Noncompliance Request - Support for Safety Working group Meeting - Safety data package, Launch site safety plan, orbital debris

THEMIS Instrument CDR(1) UCB, April 19 & 20, 2004 EEE Parts Requirements Per 311-INST-001A, grade 3 - Use PPL 21 preferred parts, design permitting - PIND, per Mil-STD-750 and Mil-STD-883, required for cavity devices. - DPA for complex or known problem devices - When needed, use DESC approved screening facility for part testing. Plastic Encapsulated Microcircuits (PEMs) - Part Derating - Radiation Tolerance - Alerts - Parts Age Control - Parts Control Board - Parts Identification List

THEMIS Instrument CDR(1) UCB, April 19 & 20, 2004 Materials and Processes Control Selection Requirements - Hazardous Material per EWR Vacuum Outgassing review per NASA PUB Stress Corrosion Cracking per MSFC-SPEC Fasteners per 541-PG Lubricants will be approved by GSFC’s materials group - Boards Coupons will be evaluated by an approved GSFC vendor or GSFC - Magnetics Compatibility per UCB Magnetics plan Documentation - Engineering drawing for materials and processes GIDEP Alerts - Reviewed by QA for all parts and materials

THEMIS Instrument CDR(1) UCB, April 19 & 20, 2004 Design Assurance Failure Modes and Effects Analysis -As part of design process to identify likely failure modes and mitigation schemes Limited Life Items - List of all hardware that is subject to degradation due to age, operating time, or cycles. Trending - Performance stability parameters shall be measured and tracked through spacecraft I&T and post-launch operations

THEMIS Instrument CDR(1) UCB, April 19 & 20, 2004 Support of design reviews - QA issues and provides product quality status Configuration Management - Configuration management plan provided by UCB - Gerber files copied to system engineering Identification and Traceability - Part numbers will be provided for all items - Serial/lot numbers or date codes will be provided - Records will be traceable backwards to the part or material Quality Assurance

THEMIS Instrument CDR(1) UCB, April 19 & 20, 2004 Quality Assurance cont. Procurement Controls -Purchase raw materials will include requirements for results of physical and chemical tests or a C of C -Test samples or coupon -Age Control/Limited-Life records will track date, when useful life was initiated/expiration date -UCB requests inspection and test reports from suppliers with the deliverable item - QA reviews purchase order requirements for flight hardware Receiving Inspection - QA verification of documentation meets PO requirements, part marking/packaging and quantity

THEMIS Instrument CDR(1) UCB, April 19 & 20, 2004 Quality Assurance cont. Fabrication Control - UCB generated assembly instructions for all flight hardware Workmanship - Soldering per NASA STD , NASA STD Cable,Harness, and Wiring per NASA STD Conformal Coating and Staking per NASA STD Printed Wiring Board per NHB Worker Certification - All technicians are certified per NASA standards above ESD Control - UCB ESD plan,THM-SYS-014-ESD revision A, 4/8/2004

THEMIS Instrument CDR(1) UCB, April 19 & 20, 2004 Quality Assurance cont. Problem/Failure reporting - Problem/Failure reporting may be informal up to the time of integration with flight hardware - After flight software/hardware integration, problem/failure reporting will be in accordance with the standard failure reporting, failure analysis, and corrective action process

THEMIS Instrument CDR(1) UCB, April 19 & 20, 2004 Quality Assurance cont. Problem/Failure Reporting

THEMIS Instrument CDR(1) UCB, April 19 & 20, 2004 Quality Assurance cont. Alerts -Two alerts that impact THEMIS: Actels A54SX72 – surge current problem Diode JANTXV1N ESD problem Printed Wiring Boards - Build per Mil-P-55110F with coupons Inspections and Tests - QA will verify soldering and witness component/system testing and review test records - QA will verify the installation and removal of Red Tag/Green Tag items prior to testing and launch Metrology - QA will verify that all equipment is in calibration prior to testing

THEMIS Instrument CDR(1) UCB, April 19 & 20, 2004 Quality Assurance cont. Handling - Handling equipment will be proof load tested twice intended load prior to use Shipping - flight hardware will be shipped with appropriate documentation and handling instructions

THEMIS Instrument CDR(1) UCB, April 19 & 20, 2004 Contamination Control UCB Contamination plan complete - Class 100k clean room - Air particle count will be monitored - All flight hardware will be placed in clean bags

THEMIS Instrument CDR(1) UCB, April 19 & 20, 2004 Software Assurance IV&V (IDPU & BAU) -To review software code - Develop Metrics (Software risk assessment) - All software problems will be tracked on problem reports - All software changes will be under configuration management Probe Bus - Under UCB configuration management review - Software problems reports provided to UCB