CREAM Systems Engineering March MSR 1212022 1 Systems

CREAM Systems Engineering March MSR 1/21/2022 1

Systems Engineering Accomplishments • Staffing Updates – Mark Cascia/Swales on full-time currently, plan to maintain support through August – Simon Dawson schedule uncertain – Part-time help from Neil Martin/GSFC not available • Technical Budgets – Submitted to CM – Tracked weekly • Generated Mission Operational Modes to Aide Thermal Analysis and Ops Planning • Established repository for Concept of Operation – Jeff Reddish • Created Doc Tree 1/21/2022 2

Systems Engineering Accomplishments • Entered SE tasks into Project Schedule – Links and hooks to schedule elements are in process • Subsystem verification planning begun – VTM for Sensors Complete – VTM for ACS Complete – VTM for C&DH Hardware, Power, Telecom, Thermal, Mechanical in Process • CM Implementation – Established and implemented process • Established minimum criteria for advancing to I&T – Worked with Project & I&T 1/21/2022 3

Systems Engineering Accomplishments • Support PDLs – – Test plan development Integration planning Subsystem operation at CDM level Gathered operation information from manufacturers • Solar arrays • Power system components • Batteries • Subsystem Verification Test Matrices – Developed EXCEL tool – Test shell-delivered/ initial meeting with most PDL’s to aid in test and verification planning. – Contains top level verification requirements. – Reflected as tasks in Schedule 1/21/2022 4

SE Tasks • CM Issues being worked – CCB • first real test of process with STACK problem resolution & resultant change • Lacked sufficient follow-through and full CM participation – – Process for document review and sign-off CCR – form needs to be identified and distributed Timeliness of updates to CREAM website Additional support coming onboard next week • Complete Document List – Published, controlled – “Expected” Docs not reflected – in process – Completion of Docs slow, most progress on test procedures 1/21/2022 5

SE Tasks • Operations Concept – Supporting project in development • work in process • Maintain Technical Resource Budgets – Track on weekly basis • Weight • Power • Thermal Dissipation 1/21/2022 6

SE Tasks • Interface Information – – – 1/21/2022 Under Configuration Management – released on net Control copies available on internet No Doc Changes (updates) since put under Control Wiring book not under CM Updating of Interface information sources still needed 7

SE Tasks • FPRD Requirements Flow Down Matrix – Initial Completed • Incorporate FPRD Rev A changes – Exceptions are new requirements • OTH Video • FPRD Rev A changes • FPRD Require. Verification Flow Down – Completed for all subsystems – Exceptions are new requirements • OTH Video • FPRD Rev A changes • Subsystem requirements – Being identified as VTM are completed – PDL support not available currently to complete 1/21/2022 8

SE Tasks • Subsystem Verification Test Matrices – SE will support, assist in preparation, review and approve final plans. – Issue: Commitment to use schedule to support effort has not been accomplished. – Reflected as tasks in Schedule • Support Preparation of Subsystem Safe to Mate and Integration Test Plans and Procedures. – I&T task – Needs to be entered in schedule 1/21/2022 9

SE Tasks • Subsystem Integration Readiness Reviews (IRR’s) – – – Conducted by Project and SE Review Acceptance Data Packages. Review subsystem safe to mate and Integration and Test plans. May have to hold several IRR’s for portions of some subsystems. Must be completed before integration to system. Gate - Reflected in Schedule • Support Project Scheduling – Management – Work arounds – Identify possible areas for preserving contingency 1/21/2022 10

SE Tasks • Support creation of I&T system level functional/performance test plans. – Need at CDM level test and B/C level test. – LPT, CPT, Aliveness. – I&T Task • Develop CDM & Ballooncraft verification plans. – – Verification test matrix Ensure test procedures result in verification Integrated with I&T planning Reflected in Schedule • Provide Mission Certification – Review final test results – Support PSR 1/21/2022 11

Weight Budget 1/21/2022 12

Power Budget 1/21/2022 13