GLAST Large Area Telescope: Gamma-ray Large Area Space Telescope GLAST Large Area Telescope: Integration and Test Two Tower Integration Readiness Review Dept. of Integration, Facilities, Configuration and Test (IFCT) Larry Wai – Dept. Manager Tom Borden – Dept. Engineer Brian Horwitz – Electrical Test Engineer Eliazar Ortiz – Mechanical Vehicle Engineer

Presentation Outline Test Readiness EGSE Readiness Facility readiness Integration readiness

IFCT Test Readiness Two Tower I&T AIDS flow Test readiness Test breakdown Electrical test training status

Two Tower I&T AIDS Receive Tracker Flight Unit A Install in Metrology Bay for Shimming & Assembly Install tower in Test Bay Receive Calorimeter, TEM/TEM PS Flight Units A Test Single Bay Tower Test CAL A & TEM/TEM PS A Integrate Tracker A into Grid De-Install Tower from test bay Receive and assemble Grid Integrate Grid onto Rotation Stand Grid Optical Survey Integrate CAL/TEM/TPS A into Grid Single Tower Test in Grid Integrate Tracker B into Grid Integrate Cal/TEM/TEM-PS B into Grid Two Tower I&T Optical Survey Receive Calorimeter, TEM/TEM PS Flight Units B Receive Tracker Flight Unit B Test CAL B & TEM/TEM PS B

AIDS example

Test Readiness

Calorimeter Test Suite Definitions Limited Functional Test (LFT) Pass/fail suite 15 minutes Comprehensive Functional Test (CFT) 2 hours Electronic Calibration Suite (ECS) Charge injection data collection online analysis 2 hours (short version), 6 hours (long version) Muon Calibration Suite (MuC) Cosmics data collection 12 hours (short version), 38 hours (long version)

Calorimeter Test Definitions Calorimeter Post-Ship Test CFT, ECS (short) +MuC (short) 16 hours I&T Receiving Test CFT 2 hours Metrology Bay Test

Tracker Test Definitions Tracker Receiving Test Pass/fail tests Muon data collection Offline analysis 24 hours Post-installation Tracker Test (in EM single bay) 2 hours

I&T Test Definitions Single Bay Test (in EM single bay) 54 hrs total (40 hrs w/o E2E/SVAC/VDG) Aliveness Test (15 min) Calorimeter: CFT (2 hrs) Tracker: Pass/fail tests (2hrs) Trigger: Module internal timing, GEM timing alignment, subsystem TACK delays (36 hours) End-to-end Test, 6 hrs SVAC Data Collection (Bay 9 only, includes VDG) 8 hrs Single Bay Test (in flight grid) 44 hrs total (4 hrs w/o SVAC) SVAC Data Collection (Bay 9 only, no VDG) Day 1=16 hrs, Day 2 = 24 hrs Two Bay Test (in flight grid) 104 hrs total Calorimeter: CFT (4 hours) Tracker: Pass/fail tests (4hrs) End-to-end Test, 40 hrs SVAC Data Collection (includes VDG) Day 1=16 hrs, Day 2 = 24 hrs, VDG=16 hrs

Electrical Test Training Status

Acceptance and validation process COTS BOBs Connector savers PDU IFCT EGSE Readiness Acceptance and validation process COTS BOBs Connector savers PDU GASU TEM/TPS BPU Test Stands Test Procedures

EGSE TEST REQUIREMENTS: MD-00408 Configuration of EGSE shall be controlled via released documentation EGSE shall be acceptance tested EGSE shall be validated before use if it has been moved, reconfigured, or repaired Validation shows that equipment is both ready for use and safe to use High degree of confidence that equipment in that configuration has full operating capabilities NASA guidance Perform an EICIT and an SVT to ensure electrical safety Trip points on circuit breakers, current limits in power supplies, shall be verified While everything is validated, the scope of validation is tailored for each piece equipment type

EGSE REQUIREMENTS / RESPONSIBILITIES

STATUS OF EGSE– COTS Digital Multimeters (I&T responsible for these) Calibrated Instrument Validation Tests Embedded within test procedure that calls them STATUS: Meter purchased exceed maximum voltage for parts in some equipment, so we are re-procuring Borrowing “Safe” DMM’s in the meantime Hand Tools Procured, cleaned, and placed in toolbox within cleanroom ATE for Safe to Mate All parts received - calibrated Interconnection harness designed –in assembly Rack tray’s sent out for machining – affected by safety stand down at SLAC

SCOPE OF EGSE TESTS – BOB’s ETC. Cables and break out boxes (I&T is responsible for these) Design documentation complete and released Acceptance Tests include Configuration inspection to assembly drawing Interface integrity and cleanliness, inspection Electrical continuity & isolation tests per LAT-TD-04325 Labeling with test due date, operator, QA Validation Tests include Verify Acceptance Testing has been performed and is not due for re-test Configuration inspection Electrical continuity tests, manual Enter into validation log kept in cleanroom Connector Savers Tests: Interface integrity and cleanliness, inspection

STATUS OF BOB’s ETC All BOB’s designed, built, and tested Inspection remains to be completed Associated cables designed, built to shortage, and tested The backshells for the 100 pin cables were back ordered and just arrived. Estimate assembly complete 12/1 Long versions of the Two Tower test cables for EGSE interconnections are awaiting the floor layout to determine lengths. Design, build, and test complete 12/31. Acceptance and Validation Test Procedures in sign off cycle

STATUS OF CONNECTOR SAVERS Determining connector saver needs Coordinating with subsystems All ELX boxes arrive with connector savers on each connector CAL delivers mated to an EM TEM, so they are not needed TKR towers arrive with connector savers that will be turned over to I&T Determining who buys connector savers for the flight cables – submitted lien to program office to fund procurement Complete determination by 11/24

SCOPE OF EGSE TESTS - PDU EM PDU Acceptance Tests include Configuration inspection to LAT-DS-01696 Interface integrity and cleanliness, inspection EICIT and SVT tests Functional Tests in accordance with LAT-TD-02544-01 Labeling with test due date, operator, QA Validation Tests include Verify Acceptance Testing has been performed and is not due for re-test Configuration inspection Electrical STM tests Fill out paperwork and enter into validation log kept in cleanroom Further validation tests performed within the test stand using load box

SCOPE OF EGSE TESTS – PDU LOAD EM PDU LOAD BOX Acceptance Tests include Configuration inspection to LAT-DS-03400 Interface integrity and cleanliness, inspection EICIT and SVT tests Functional Tests in accordance with LAT-TD-04095-01 Labeling with test due date, operator, QA Validation Tests include Verify Acceptance Testing has been performed and is not due for re-test Configuration inspection Electrical STM tests Fill out paperwork and enter into validation log kept in cleanroom Further validation tests performed within the test stand

STATUS OF PDU & LOAD BOX Documentation PDU Assy, LAT-DS-01696, released PDU Test Procedure, LAT-TD-02544-01, released PDU Load Box Assy, LAT-DS-03400, released PDU Load Test Procedure, LAT-TD-04095-01, released EICIT Procedure, PDU, LAT-TD-04332, released SVT Procedure, PDU, LAT-TD-04332, in work (12/1) Delivered to I&T Inspection, acceptance test, validation pending development of flight documentation

SCOPE OF EGSE TESTS - GASU EM GASU Acceptance Tests include Configuration inspection to LAT-DS-01611-09 Interface integrity and cleanliness, inspection EICIT and SVT tests Functional Tests in accordance with LAT-TD-04267-02 Labeling with test due date, operator, QA Validation Tests include Verify Acceptance Testing has been performed and is not due for re-test Configuration inspection Electrical STM tests Fill out paperwork and enter into validation log kept in cleanroom Further validation tests performed within the test stand

STATUS OF GASU Documentation GASU Assy, LAT-DS-01611-09, released GASU/Test Stand Test Procedure, LAT-TD-04267-02, released EICIT Procedure, GASU, LAT-TD-04260, released SVT Procedure, GASU, LAT-TD-04382, in work (12/1) Delivered to I&T Inspection, acceptance test, validation pending development of flight documentation

SCOPE OF EGSE TESTS – TEM/TPS EM TEM/TPS Acceptance Tests include Configuration inspection to LAT-DS-01643 Interface integrity and cleanliness, inspection EICIT and SVT tests Functional Tests in accordance with LAT-TD-4085-01 Labeling with test due date, operator, QA Validation Tests include Verify Acceptance Testing has been performed and is not due for re-test Configuration inspection Electrical STM tests Fill out paperwork and enter into validation log kept in cleanroom Further validation tests performed within the test stand

STATUS OF TEM/TPS Documentation TEM/TPS Assy, LAT-DS-01643, released TEM/TPS Test Procedure, LAT-TD-4085-01, released EICIT Procedure, TEM, LAT-TD-03875-02, released SVT Procedure, TEM, LAT-TD-04097-02, released EICIT Procedure, TPS, LAT-TD-03875-02, released SVT Procedure, TPS, LAT-TD-04098-01, released Two delivered to I&T Inspection, acceptance test, validation pending development of flight documentation

SCOPE OF EGSE TESTS – BUS PROTECTOR Acceptance Tests include Configuration inspection to LAT-DS- Interface integrity and cleanliness, inspection EICIT and SVT tests Functional Tests in accordance with LAT-TD- Labeling with test due date, operator, QA Validation Tests include Verify Acceptance Testing has been performed and is not due for re-test Configuration inspection Electrical STM tests Fill out paperwork and enter into validation log kept in cleanroom Validation tests performed in accordance with LAT-TD-

STATUS OF BUS PROTECTOR Requirements identified in EGSE Plan Design assigned within ELX Documentation needs be created Awaiting schedule

TEM TEST STAND - CAL AND TKR TESTS Acceptance Tests include Configuration inspection LAT-DS-02861 CAL LAT-DS-03605 TKR Interface integrity and cleanliness, inspection EICIT and SVT tests Functional Tests in accordance with LAT-TD-4085-01 Labeling with test due date, operator, QA Validation Tests include Verify Acceptance Testing has been performed and is not due for re-test Electrical STM tests Fill out paperwork and enter into validation log kept in cleanroom Perform tests described in LAT-TD-4085-01, Para. 5.5.4, Basic Test

STATUS OF TEM TEST STAND Documentation CAL Test Stand set up procedure, LAT-DS-02861, released TKR Test Stand set up procedure, LAT-DS-03605, released TEM/TPS Test Procedure, LAT-TD-4085-01, released EICIT Procedure, TEM, LAT-TD-03875-02, released SVT Procedure, TEM, LAT-TD-04097-02, released EICIT Procedure, TPS, LAT-TD-03875-02, released SVT Procedure, TPS, LAT-TD-04098-01, released Two delivered to I&T Inspection, acceptance test, validation pending development of flight documentation

GASU TEST STAND – TESTS IN 1X1 Acceptance Tests include Configuration inspection LAT-TD-04267-02 Interface integrity and cleanliness, inspection EICIT and SVT tests Functional Tests in accordance with LAT-TD-04267-02 Labeling with test due date, operator, QA Validation Tests include Verify Acceptance Testing has been performed and is not due for re-test Configuration inspection Electrical STM tests Fill out paperwork and enter into validation log kept in cleanroom Perform tests described in LAT-TD-4085-01, Para. 5.5.4, Basic Test

STATUS OF GASU TEST STAND Documentation Assembly and test procedure, LAT-TD-04267-02, released Validation test, run LAT-TD-4085-01, released EICIT Procedure, GASU, LAT-TD-04260, released SVT Procedure, GASU, LAT-TD-04382, in work (12/1) Delivered to I&T Inspection, acceptance test, validation pending development of flight documentation

GASU/PDU TEST STAND – TWO TOWER Acceptance Tests include Configuration inspection LAT-TD-04267-02 Interface integrity and cleanliness, inspection EICIT and SVT tests Functional Tests in accordance with LAT-TD-04267-02 Labeling with test due date, operator, QA Validation Tests include Verify Acceptance Testing has been performed and is not due for re-test Configuration inspection Electrical STM tests Fill out paperwork and enter into validation log kept in cleanroom Perform tests described in LAT-TD-02544-01, Para. 5.3.6, PDU-GASU Interface and electrical load tests LAT-TD-4085-01, Para. 5.5.4, Basic Test

STATUS OF GASU/PDU TEST STAND Documentation Assembly and test procedure, LAT-TD-04267-02, released PDU Validation LAT-TD-02544, released Validation test, run LAT-TD-4085-01, released EICIT Procedure, PDU, LAT-TD-04332, released SVT Procedure, PDU, LAT-TD-04332, in work (12/1) EICIT Procedure, GASU, LAT-TD-04260, released SVT Procedure, GASU, LAT-TD-04382, in work (12/1) Delivered to I&T Inspection, acceptance test, validation pending development of flight documentation

TEST PROCEDURE STATUS Test procedures are being written prior to completion of test plan - risk CAL Test Procedure Draft complete and in review Draft must be updated with new input from CAL subsystem (received after procedure completed) Complete one week after CAL final update TKR Test Procedure Draft was complete and in review three weeks ago Draft was updated with new input from TKR subsystem (received after procedure completed) Complete one week after TKR final update

TEST PROCEDURE STATUS (cont) Single Tower Test Draft in review in I&T Affected by change to subordinate documents References to be updated and test descriptions re-written Complete 12/15 Two Tower Test Draft begun Complete 12/31 VG and CR Data Runs for LAT Integration

IFCT Facility Readiness Status and upgrades

Facility Readiness Building 33 Clean Rooms functional and occupied Monitoring system fully operational Clean Rooms fully certified Thermal chambers (2) functional and in use Thermal Vacuum Chamber functional All computers and oxygen sensors have battery back ups Upgrades 15 ton crane to get two speed option Stand alone hot water boiler Extend back up generator lease Upgrade environmental controls on clean room air handler

IFCT Integration Readiness Mechanical integration training status Tracker integration

Mechanical Integration Training Status

Tracker Installation Basic Procedure complete New inputs from Tracker Group to be incorporated Cone assembly process (done) Cable bonding process (still in work) Some Project decisions pending Adjustment of Tower lean Measurement of Tower location