THEMIS INSTRUMENT SUITE FM4/FM5 PRE-SHIP REVIEW INTRODUCTION Davin Larson SST Lead University of California - Berkeley

Outline Summary of SST Status at FM1 PSR FM1-5 Configuration by SN End-Item Data Package Final Test and Cal Results vs. Requirement Fulfillment Open Items

Status Current SST-DAP Status: FM1 - Delivered FM2 - Delivered FM3 - Delivered FM4 - Delivered FM5 - Delivered FM6 - Delivered (Needs memory test following conformal coating)

Status Current SST-Sensor Status: FM1 – (S01 & S02) Delivered FM2 - (S06 & S04) Delivered FM3 - (S05 & S10) Delivered FM4 - (S07 & S09) Delivered FM5 - (S11 & S12) Complete, Calibrated, awaiting delivery. FM6 - (S03 & S08) Refurbished, requires workmanship vibe.

Flight Configuration Current flight configuration of sensors and DAPs for all flight units.

FM1 EIDP: Sensors THEMIS SST Sensor: (Sensor1:Binder #33; Sensor2: Binder #34) Electrical Assembly Schematics Electrical Assembly Records Rework/Repair history Electrical test results QA signoffs Mechanical Assembly Mechanical drawings Vibration test results Thermal Vac test results Assembly Records. Special TVAC Acceptance Test Data.

FM1 EIDP: DAP THEMIS SST DAP: (Binder#2) Schematics Electrical Assembly Records Rework/Repair history Electrical test results QA signoffs

SST Vibration Testing (Pictures of Probe 2 units)

SST Acceptance Level Dynamic Test SST Serial Number Test Date Following Initial Build Retest Date (Rework/Redesign) 001, 002 13 Jan 05 Oct 11, 2005 (full-qual) 003, 004 22 Apr 05 Nov 4, 2005 (workmanship) 006, 008 June 13, 2005 007, 009 May 6 2005 Nov 7, 2005 011, 012 Nov 7 2005 Not needed 005, 010 Dec 13 2005

SST Acceptance Level Dynamic Test Per UCB THEMIS Document THM-SST-PRC-002 All 3 Axes Sine Survey, 0.5 G, 5 – 2000 Hz Sine Strength per Swales TM2430-RevD, 29 November 2004 Random Per Swales Document TM2430-RevD 12.51 G RMS 1 min duration per axis All Vibration Testing Performed at Quanta Laboratories Retesting (if required) ‘Workmanship Shake’ Validate any design changes following original Flight build shake Validate rework of any failures on previous vibration test Entire vibration protocol, single axis only Acceptance Sine Strength Specification SST Flight Unit Acceptance Level Random Specification

SST TVAC Testing SST Serial Number Test Date Following Initial Build Retest Date (Rework/Redesign) 001, 002 5 Jan 05 Not needed 003, 004 28 Apr 05 006, 008 Sept 7, 2005 Dec-3-2005 (sensor 6 only) 007, 009 May 25, 2005 not needed 011, 012 Dec 3 2005 005, 010 Dec 20, 2005 to Jan 11, 2006 (8 cycles)

Thermal Profile Procedure: THM-SST-PRC-003

SST -Magnetic cleanliness SST Magnetic Cleanliness Testing Status All units have been tested and are nominal.

SST -Magnetic cleanliness SST Sensor 07 All units have been tested and are nominal.

SST -Magnetic cleanliness SST Sensor 09

SST -Magnetic cleanliness SST Sensor 11

SST -Magnetic cleanliness SST Sensor 12

SST Requirements SST Mission Requirements Fulfillment: FM1 MR fulfillment noted in THEMIS Verification Matrix (see MSE Presentation) Integrated SST and component parts compliant with mission requirements

Open PFRs None

Recent PFRs PFR 169- Found poor ion energy response in 2 sensors. (S03 and S08). Found only in sensors that had undergone electron testing. Discovered that plasma discharges from the electron gun had inadvertently damaged adjacent ion detectors. (electron detectors where protected by foil that stopped all ions and never showed any damage.) Subsequent testing with the electron gun is done with the open (ion) detectors covered. Electron gun has also been refurbished. Swapped affected sensors with spares (S05 and S10). Replaced damaged open (ion) detectors in affected units. These are now the new spares. PFR is closed.

Results of Testing/Calibration Energy Threshold vs temperature measured and acceptable Energy resolution acceptable (<13 keV at 5C). Detector gain measured and is stable over temperature. Channel crosstalk measured and acceptable (<20 keV) Attenuator functions over full operational Temp range. Heater/Thermostat Functional at < -50 C *! Magnetic moments measured and deemed acceptable. End to End performance verified. (*!) Noise susceptibility from BAU is very low now