LAT Monthly Status Review 1 Sep 2005 Design Integration and Analysis

1. LAT Monthly Status Review 1 Sep 2005 Design Integration and Analysis Martin Nordby John Ku Jack Goodman

2. Design Support Status • Flight/fly-away hardware designs (all remaining hardware listed) • MLI blankets: draft drawings still out for check • External fly-away instrumentation cables: layout complete • TKR accel mount bracket: drafts complete, waiting to send out for check • Assembly drawings (all remaining assembly drawings listed) • LAT-DS-06721 External Cable Installation Kit • First draft bill of materials complete; drawing in internal check • LAT-DS-02563-01 LAT Instrument Assembly • First draft bill of materials complete; drawing in internal check • LAT-DS-01624-01 LAT Top Assembly • Model up-to-date, but drawing not yet started • Interface Drawings • All interface drawings released and up-to-date with no known liens

3. Integration Planning • LAT Integration Sequence (LAT-MD-00676-04) • Updated rev put in release cycle this month—includes early ACD, SIU integration and FSW testing • Configuration drawings • LAT Instrument Configuration Assembly • Drawing complete—waiting internal checking • Integration MGSE (all remaining integration MGSE listed) • ACD Lift Fixture • Drawings completed this month—drawings released, with 4 rev’s in release cycle now • Design review held this month • EM-SIU Mount Plate • Drawing released this month

4. Environmental Test Planning • Current focus is to complete all Plan-level documents by the end of August • All Test Plans are out in the release cycle • Next step (Aug-Sep) • Develop procedure list—being prepared for NRL F2F on Sep 7 • Complete MGSE designs—in progress; see status chart • Start drafting procedures—not started yet • Finalize NRL logistics plans—Implementation Plan draft being prepared for NRL F2F • Develop Pathfinder plans for prototyping at NRL in November—pathfinder activities identified; plans to be discussed at NRL F2F • Pathfinder (Oct-Nov) • Complete all procedures that are needed for Pathfinder • Walk through procedures using real MGSE hardware at NRL • Update procedures based on Pathfinder experiences • Release procedures prior to TRR and LAT shipment

5. The following documents (in total) form the technical bases for LAT environmental testing Environmental Test: Plan-Level Documents and Status

6. These show flight hardware and MGSE/STE in their test configuration Includes all information needed to support test set-up procedures Shows all mechanical test and handling equipment that is used for the test Configuration Assemblies being worked in conjunction with finalizing MGSE designs for the tests Environmental Test: Configuration Drawings and Status

7. Environmental Test MGSE/STE • Transport Container • NRL working on retrofitting a surplus container • Design review planned for NRL F2F on Sep 8 • Test Interface Plate • Assembly work started at SLAC—needed for Grid2 static load test • Test Stand/Spreader Bars • Drawings completed in August • Assembly and proof test plans completed in August • Structural analysis completed in August • Final Design Review held on Aug 25 • RFP out on street now • T-Vac Sink Plates and Cal-Rod Cage • Thermal and electrical design completed in August • Mechanical design complete—review planned for NRL F2F • Acoustic Simulator • Conceptual design completed in August • Working details to ensure correct acoustic response • Detailing should be completed in mid-Sep

8. Structural Analysis: Accomplishments • LAT System Level • Grid Static Load Test (GSLT) • Finalized Grid static test load cases and instrumentation points – inputs given to NTS • TIP Proof test load cases defined and instrumentation points– inputs given to NTS • Worked out several practical issues with I&T regarding GSLT • Continued LAT Environmental test planning • Dynamics Test Plan in release cycle • LAT Subsystem Level • MGSE • Test Stand analysis and report complete – review held, some action items to address • Test Interface plate analysis and report complete – review held, with no action items • ACD Lift Fixture analysis and report complete – review held • TKR Subsystem • No activity • Mechanical Subsystem • Supported Radiator acoustic test – hardware passed without issue; qual levels achieved • EBOX Subsystem • No activity T I T I T T D = Flight Design = Integration Prep = LAT/SS Test Prep I T

9. Structural Analysis: Near-term Milestones and Status • LAT System Level • LAT Static Testing • Complete Pre-test analysis: predictions, fixture evaluation, hold TRR – ECD = 9/9/05 • Support testing in third week of September – ECD = 9/19/05 – 9/30/05 • LAT Dynamics Testing • Update LAT vibration test predictions – ECD = 10/15/05 • Support Pathfinder activities at NRL – ECD = ongoing through Nov 2005 • Continue planning with I&T and NRL for LAT environmental testing – ECD=ongoing through test • MGSE for I&T: augment MGSE analysis with additional I&T needs, as required • Complete Test Stand review action items • LAT Subsystem Level • TKR Subsystem • Continue to support tower testing by phone – ECD = ongoing through last Tower test • Mechanical Subsystem • Support radiator static tests @ SLAC – ECD = TBD • EBOX Subsystem • Complete TEM/TPS Vibration test report • Support GASU and PDU Protoflight tests T I T I T T T D = Flight Design = Integration Prep = LAT/SS Test Prep I T

10. Thermal Engineering Activities – Completed • Design Engineering and Support • N/A • LAT Level Thermal Analysis and Tests • LAT TVAC S/C bus simulation, ACD and radiator sink plates heater circuit design finished • Subsystem Support and Oversight • Supported TKR 7, 10 TVAC test at Alenia, 31 July – 6 August • LAT Thermal Control System • Radiators connected with Radiator Control and Monitor Console and checked out for TVAC test. • Lockheed Thermal Control System Hardware • Radiators integrated onto test stand and installed into LM Delta chamber

11. Thermal Engineering Activities – Current • Design Engineering and Support • Environmental Specification – change Tracker Acceptance Level Tests (35C to 45C) • Reviewing electrical grounding scheme for MLI blankets with NASA/GSFC • LAT Level Thermal Analysis and Tests • Thermal math model for LAT TVAC Test almost complete—LAT support stand GSE will be incorporated into model when time becomes available (after radiator/TCS protoqual tests–end of August) • Modification of orbit thermal model to predict ground operation temperatures with integrated ACD • Subsystem Support and Oversight • Planning for TKR TVAC support: TKR 11 & 12 week of 5 Sept and TKR 13 & 14 week of 12 Sept. • LAT Thermal Control System • RCMC is currently being used in Radiator/TCS Protoqual test. • Lockheed Thermal Control System Hardware • Radiator/TCS Protoqual Test in progress; hot performance and cold survival test segments completed. TVAC test

12. Thermal Engineering Activities - Planned • Design Engineering and Support • Complete detailed MLI design • Review, then fabricate MLI blankets; two sets, one set for tests and other for flight • LAT Level Thermal Analysis and Tests • Thermal Math Model, Ver. 6.1, reduced node • Thermal Math Model, Ver. 6.2, LAT TVAC test configuration • Document analysis of LAT transition from Survival to Operating Mode • 200 Node Launch Vehicle Thermal Math Model • Develop refined ground cooling scheme for LAT with light-tight shield and integrated ACD • Subsystem Support and Oversight • Support TVAC tests of all eboxes • Support TVAC tests of TKR 11 - 14 • LAT Thermal Control System • Preliminary verification during LM Radiator Protoqual Tests, now in progress • TCS verified in LAT TVAC tests at NRL • Lockheed Thermal Control System Hardware • Complete radiator TVAC test and deliver to SLAC