1. HMI01567 – Page 1HMI Sun Test Review – November 28, 2005 HMI First Sun Test Review November 28, 2005

2. HMI01567 – Page 2HMI Sun Test Review – November 28, 2005 Agenda TopicPresenterTime Overview & ObjectivesMiles15 min Test RequirementsSchou Lessons LearnedBush Test PlanMoskal Test DescriptionsSchou, Bush, Tarbell, Hoeksema, Miles Test Data ProcessingSchou Test ReadinessDrake, Kirkpatrick, Miles Concerns and Issues

3. HMI01567 – Page 3HMI Sun Test Review – November 28, 2005 Objectives Objectives of the sun test review: –Verify that planned tests meet the verification requirements appropriate for the sun test. –Show that all hardware, software, facilities, procedures, and personnel are available and prepared to support the test. Objectives of the sun test: –Learn how to operate the HMI optics package. –Learn how to characterize/calibrate the instrument. In some cases, obtain initial calibration parameters. –Discover gross errors in design or workmanship of the HMI optics package. –Determine position of focus to set the final shim on the telescope secondary lens. –Results of the sun test will directly feed into the plans and procedures for the formal test and calibration series. –The sun test does not provide formal verification of any requirements.

4. HMI01567 – Page 4HMI Sun Test Review – November 28, 2005 = Sine signature= Transport HOP Sine Vibration Acoustics Random Vibration Cnfg I Delivery to GSFC 40D Slack Repeated for X-, Y-, and Z-axes Quasi-static Loads Cnfg II Cnfg Flight Flight Sftwr Acct Test Develop SW Accpt Test Initial Sun Tests In Air Calibration Vacuum Calibration Flight CCD DM Camera Install ISS BB HEB (no CIF) DM CCD, DM Camera No ISS Alignment Thermostats HOP w/BB Functional Test Align HOP w/BB Functional Test Align HOP Vibration Prep Complete Flight HOP Only - Functional Test w/ BBHEB Flight HEB CPT Special Test EMI/EMC Prep Aliveness Test EMI/EMC HOP&HEB Functional Test Align Sine Vibration Random Vibration Repeated for X-, Y-, and Z-axes Quasi-static Loads HEB Vibration Prep HEB FT HEB Flight Conformal Coat HEB FT TV/TB Prep Aliveness Test Thermal Balance Thermal Vacuum CPT Special Test Align Apr 06 May 06 Jul 06Aug 06 Mar 06 Sept 06Nov 06 HEB FT Nov 05 Install Flt Cameras Roll Over CIF BBHEB HMI Integration and Test Flow

5. HMI01567 – Page 5HMI Sun Test Review – November 28, 2005 HMI Instrument Test Configurations HMI Instrument Configuration 1 –Brassboard Electronics Box –Brassboard Cables –Optics Package: Non-flight hardware Flight CCD with flight focal plane housing (one location) DM Camera (one location) –Optics Package: Flight hardware Structure with alignment mechanism, legs, and mounting brackets Telescope assembly: front window filter, primary lens, secondary lens, mounting bracket Polarization selector and wavelength tuner (seven HCMs) Harness (mechanisms only) ISS mirror and beam-splitter Oven assembly BDS beam-splitter and fold mirror CCD fold mirror (two) HMI Instrument Configuration 2 –Brassboard Electronics Box –Brassboard Cables –Optics Package: Install flight items Focal plane (two) ISS limb sensor and preamp box Oven controller electronics box More harness Finish heater routing Install vents Oven thermostat Replace Lyot elements one and two Replace NB Michelson Tests –Initial Sun Test –Initial Functional Tests Tests –ISS Testing –CCD Alignment –In-air calibration –HOP Vibration testing

6. HMI01567 – Page 6HMI Sun Test Review – November 28, 2005 HMI Instrument Test Configurations HMI Instrument Flight Configuration –Fight electronics box –Flight Harness –Flight HOP HMI HEB Flight Configuration –Conformal coated boards in HEB –Flight Harness –Flight HOP Tests –Software Acceptance Test –Flight CPT –EMI/EMC Test Tests –HEB Vibration Test –Vacuum Calibration –Thermal Balance and Thermal Vacuum

7. HMI01567 – Page 7HMI Sun Test Review – November 28, 2005 Test Article Configuration for Initial Sun Test Optics –All flight optics in place except as noted below. –Michelsons are likely to be replaced with a better set after the sun test. –Lyot elements 1 and 2 are likely to be replaced with better elements after the sun test. –Telescope not set in final focus; final focus position to be determined from sun test data. –No ISS actuation. Camera and Detector –DM camera electronics and flight CCD with forward flight focal plane housing and flight-like headboard. –No side camera. Thermal –Flight oven and preamp, ETU oven controller. –No operational heater thermal control. –No MLI. Mechanisms –All seven flight hollow core motors with flight optics. –Both flight focus / calibration wheels with flight optics –Flight alignment legs. –Flight shutters. –No front door mechanism. Mechanical –Flight structure with legs and mounting brackets –Non-flight HOP cover; non-flight covers in place of radiators and vents. Cables –Flight HCM, shutter, and cal/focus wheel harnesses; non-flight alignment leg harness –Non-flight CCD flex cable. –Brassboard intra-instrument harness. Brassboard HEB –No CIF. Environment –Ambient temperature and pressure

8. HMI01567 – Page 8HMI Sun Test Review – November 28, 2005 Test Requirements – Jesper Schou

9. HMI01567 – Page 9HMI Sun Test Review – November 28, 2005 Sun Test Overview – Jesper Schou Test prerequisites Pre-test analysis Measurements –Discuss measurements to be recorded during the test. Explain how the measurements will be used to verify that test objectives are met and how they will be used to provide quantitative pass/fail criteria. Go/no go criteria –State the readiness criteria for conducting the test. What measurements, test conditions, or other parameters are absolutely required to perform the test? What parameters might be compromised? Pass/fail criteria –Provide detailed criteria and/or methodology for declaring the test was a success or a failure. If the criteria involve processing data, provide a detailed procedure for processing the data. Schedule –Provide a summary test schedule, including key dates for significant events.

10. HMI01567 – Page 10HMI Sun Test Review – November 28, 2005 Lessons Learned from MDI & FPP – Rock Bush, Ted Tarbell Have several “standard” stimulus setups, with more than one person knowing how to change from one to another. Keep a log of which setup is used for every test and any deviations from “standard” Test and cal procedures evolve by trial and error: need prompt (not necessarily real time) data analysis and STOL/procedure editing. Have scientists analyze the data who are not involved in collecting the data. Decide on measurements for trending and start early; keep standard, clear tables/web sites of results. Need quick look (almost real time) viewing of images during testing: interactive X, Y, I, etc. measurements

11. HMI01567 – Page 11HMI Sun Test Review – November 28, 2005 Sun Test Plan – Ryan Moskal Equipment Flow of testing Procedure (logs, shop orders, etc.) Facilities –Provide a description of the required test facility, including floorplan. –Describe the characteristics and capabilities of the test facility and required support equipment. (lasers, interferometers, stim tel, PCU, heliostat, etc.)

12. HMI01567 – Page 12HMI Sun Test Review – November 28, 2005 Sun Tests Prepare a plan for each of the following tests, using the template on the following chart: Image Quality –Distortion – Jesper –Image scale – Jesper –MTF – Jesper –Field curvature and focus – Jesper –Ghost images – Rock –Scattered light – John –Flat field – John –Linearity – Ted Contamination – Jesper Image offset and distortion – Rock Filter Transmission – Rock –Wavelength dependence –Spatial and angular dependence –Throughput –Contrast Polarization – Jesper Observables – Todd –Doppler –Line of sight –Vector Alignment Mechanism – John –Range and step size –Repeatability

13. HMI01567 – Page 13HMI Sun Test Review – November 28, 2005 Image Quality: Linearity – Ted Purpose –Determine the calibration necessary to correct for CCD response non-linearities, and determine the exposure limit for calibratable response. Requirements –Measure the CCD response as a function of exposure time, from dark to full-well. Description –Flood illuminate the CCD with the lamp source via the stim tel. (Although not available in the sun test, would cal-mode work better for this?) –Measure stability of lamp Test configuration –Describe the test setup. State how the test article, test facility, instrumentation, and test equipment will be configured and checked out prior to the actual test. Include the light input. Test plan –Describe the operational status of the test article during testing and the requirements for performance measurements before, during, or following the test. Data analysis –Tools, utilities Procedure –STOL status –Shop order status (created from Ryan’s template) –The test timeline –Defined the required test personnel and their roles and responsibilities

14. HMI01567 – Page 14HMI Sun Test Review – November 28, 2005 Alignment Mechanism: Range and Step Size – John Purpose Requirements Description Test configuration –Describe the test setup. State how the test article, test facility, instrumentation, and test equipment will be configured and checked out prior to the actual test. Include the light input. Test plan –Describe the operational status of the test article during testing and the requirements for performance measurements before, during, or following the test. Data analysis –Tools, utilities Procedure –STOL status –Shop order status (created from Ryan’s template) –The test timeline –Defined the required test personnel and their roles and responsibilities

15. HMI01567 – Page 15HMI Sun Test Review – November 28, 2005 Alignment Mechanism: Repeatability – John Purpose Requirements Description Test configuration –Describe the test setup. State how the test article, test facility, instrumentation, and test equipment will be configured and checked out prior to the actual test. Include the light input. Test plan –Describe the operational status of the test article during testing and the requirements for performance measurements before, during, or following the test. Data analysis –Tools, utilities Procedure –STOL status –Shop order status (created from Ryan’s template) –The test timeline –Defined the required test personnel and their roles and responsibilities

16. HMI01567 – Page 16HMI Sun Test Review – November 28, 2005 Test Plan Template Each sun test gets its own set of charts, including as a minimum: –Purpose –Requirements –Description –Test configuration Describe the test setup. State how the test article, test facility, instrumentation, and test equipment will be configured and checked out prior to the actual test. Include the light input. –Test plan Describe the operational status of the test article during testing and the requirements for performance measurements before, during, or following the test. –Data analysis Tools, utilities –Procedure STOL status Shop order status (created from Ryan’s template) The test timeline Defined the required test personnel and their roles and responsibilities

17. HMI01567 – Page 17HMI Sun Test Review – November 28, 2005 Data Processing – Jesper Schou Science/calibration analysis Image processing Real-time data turnaround needed? Facilities

18. HMI01567 – Page 18HMI Sun Test Review – November 28, 2005 Hardware Readiness – Kirkpatrick Alignment status Camera Safe-to-Mate GSE –PCU –Air-to-Vac Corrector Air-to-vac corrector lens used with either the heliostat or the Stim-Tel to produce images in focus at the location of the CCD with the instrument in ambient pressure. –Stim-tel –Heliostat –Other GSE

19. HMI01567 – Page 19HMI Sun Test Review – November 28, 2005 Software Readiness Topics –Flight Software –GSE –Camera –STOL –Tables

20. HMI01567 – Page 20HMI Sun Test Review – November 28, 2005 Flight Software Mechanism control software and state machines in place for –HCMs (3 Polarization Selector mechanisms and 4 Wavelength Tuning mechanisms) –Shutters –Calibration/filter wheels Two mechanism control software elements being completed –Alignment legs (done but possible problem with limit switches) –Front door mechanism (not needed for first sun test, problem with open/closed switches) Sequencer –Works with hard-coded framelist –Framelist table upload in development –Initial tests will not use sequencer

21. HMI01567 – Page 21HMI Sun Test Review – November 28, 2005 GSE and Camera LMSAL EGSE In place and ready –Release 6.6 development –RAL GSE Camera Control Interface –PCU Control –Stimulus telescope intensity control (not done) RAL GSE In place and ready Camera –Development model camera control through RAL GSE from LMSAL EGSE STOL –Work-around for lack of Camera InterFace (CIF) board in HMI brassboard –Images have been taken through this interface and provided to Stanford for data analysis/processing –Header content needs review and expansion

22. HMI01567 – Page 22HMI Sun Test Review – November 28, 2005 Sun test STOL list NameStatus hmi_focusDone hmi_pl_wobbleWritten, not tested hmi_wl_wobbleWritten, not tested hmi_pcu_ss_modaWritten, not tested hmi_pcu_ls_modcWritten, not tested ral_menuWorks, needs revision ral_tpWorks, needs revision hmi_picture_loopNot written hmi_set_all_hcm_zeroNeeds encoder values to set HCM to hmi_set_nom_posNeeds nominal positions hmi_move_legs_to_centerNot written hmi_find_centerWritten, needs review/demonstration hmi_set_positionNot written hmi_dop_seq5Not written, use wl_wobble_10 table hmi_detune27Not written, make table?

23. HMI01567 – Page 23HMI Sun Test Review – November 28, 2005 Tables NameStatus cal_focusDone pl_wobble_10Written, not tested wl_wobble_10Written, not tested pcu_ss_modaDiscuss with Greg Card, Rock, Jesper, Ralph & RogerC pcu_ls_modcDiscuss with Greg Card, Rock, Jesper, Ralph & RogerC

24. HMI01567 – Page 24HMI Sun Test Review – November 28, 2005 Documentation Test Plan –This review chart package, together with a cover sheet signature page, constitutes the the Sun Test Plan (HMI01567). Procedures (shop orders) –The test procedures are documented in the shop orders under which all tests are carried out. No test may proceed without a signed shop order. –Shop orders signed off by: Test lead; system engineer; deputy program manager; mission assurance Applicable Documents –HMI I&T Plan, HMI Contract Performance Spec, HMI Calibration Plan, HMI IPD Test Reports –Each test lead will prepare a test report and attach it to the shop order associated with the test. –Test reports explain results related to requirements and identify trended data. –For any failures, discuss root cause, corrective action, and plan for retest. –All test reports related to in-air calibration items are due Feb 06. –All test reports related to functional test items are due Mar 06. (To support pre-environmental test review). –All remaining test reports due Apr 06.

25. HMI01567 – Page 25HMI Sun Test Review – November 28, 2005 Concerns & Issues – All