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SWEA Particles and Fields Package Pre-Ship Review March 1, 2013 Project-Level Assessment

Mars Atmosphere and Volatile EvolutioN (MAVEN) Mission. SWEA Particles and Fields Package Pre-Ship Review March 1, 2013 Project-Level Assessment Jim Morrissey, MAVEN ISM. Introduction. Particles Fields Package is 6 of 8 of the MAVEN instruments STATIC, SWIA, SEP (SSL) SWEA (SSL, IRAP)

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SWEA Particles and Fields Package Pre-Ship Review March 1, 2013 Project-Level Assessment

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  1. Mars Atmosphere and Volatile EvolutioN (MAVEN) Mission SWEA Particles and Fields Package Pre-Ship Review March 1, 2013 Project-Level Assessment Jim Morrissey, MAVEN ISM

  2. Introduction • Particles Fields Package is 6 of 8 of the MAVEN instruments • STATIC, SWIA, SEP (SSL) • SWEA (SSL, IRAP) • LPW/EUV (LASP) • MAG (GSFC) • All instrument interface electrically with the spacecraft through the PFDPU (SSL) • SWEA is the final instrument in the PFP to be delivered. SSL has overcome issues with high voltage discharges which caused the delivery date to move from late November.

  3. SWEA Status • All RFAs are closed • SWEA has completed environmental testing and is finishing calibration • SWEA delivery was delayed from November to March 4th due to issues with high voltage discharges. • SWEA was disassembled and re-worked with the help of high voltage experts, Steve Battel and Art Ruitberg. • After re-work SWEA went through vibration and TVAC testing without any reoccurrence of high voltage discharges • Prior to and during TVAC testing, three instances of a voltage instability were observed • Since the end of TVAC the instrument has operated at high voltage for over 60 hours without reoccurrence • We have decided to delay delivery to March 7th to allow for additional monitoring on a 24-hour basis • March 7th will allow SWEA to be integrated on the spacecraft for one of three axes of vibration testing.

  4. Spacecraft ATLO Flow ATLO Start: August 6, 2012 Spacecraft Structure w/integrated Propulsion System Install Spacecraft Harness Install C&DH, PDDU, PAPU & Thruster Diodes Boxes Perform Power Distribution Install/Align GN&C GN&C Functional Install Test Battery/SAS Integration PAPU Perf., TCS/Prop/C&DH Functional DSN & GN&C Phasing Install APP/TAG/Hinges/Mass Sims/TAME STU Functional Install Telecom/X-Band Functional APP TAG Functional Install & Deploy APP Electra UHF IPTO/Functional Install FSW 4.1/Launch, MOI SVT’s Install RSDPU IPTO/Functional Install PFDPU IPTO/Functional Re-install C&DH Boxes Transition/Science SVT & Deep Dip Install APP Move to ETL / Magnetics Swing Test 2 Days Sine Vibe Install FSW 5.0 Move to RAL Lift to PLA Pyro-Shock Match Mate Referee Fluid Offload Re-Install TAME, Regression Test MPK Harness c/o Acoustic Test Load Referee Fluid Modal Survey Install HGA & SAs/C&DH Regr./ TCS Funct. APP & Solar Array Deploy Install SWEA First Motion NGIMS IPTO & Functional Test 2 Days NGIMS Regression Test Move to RAL 2 Days Self Compatibility Magnetics EMI/EMC Launch/MOI SVT’s Lost in Time T-Vac MLI Install Move to SSL Tvac Dry Run Thermal Vac Test 2 Days Move to MTF Lift to Rotation Power Perf. Test Post Environmental SVTs Launch/MOI SVT’s/Install SA/Dry Spin Balance Install APP Payload Final Perf. Test 3 Days P&S Preps 6 Days 5 Days Ship To KSC 8/2/13 Setup Operations Install Flt Batteries/SST Load FSW 6.0 Solar Array Removal/GN&C Phasing/SVTs Install APP/HGA/ Solar Arrays/ Illumination/SVTs 8 Days 11 Days Propellant Load Spin Test DSN Prop Functional Ordinance Install Launch Pad Ops Launch 11/18/13 Legend Launch Site Campaign Subsystem System Integration & Test Margin Total: 41 Days Margin Environmental Test Payloads

  5. Risks Associated with Late Delivery of SWEA to ATLO

  6. Post-Delivery Planning • Arrive at Denver at 1:00 PM on March 7th • Deliver to the LM Manufacturing Test Facility (MTF) for bench checkout (2 hours) • AIRR 8:00 AM on March 8th • Mechanical installation followed by safe-to-mate and self-test on March 8th • Spacecraft returns to vibration testing

  7. Requirements Verification • SSL, LASP and GSFC provides verification matrix status, verification and test reports • GSFC team reviews verifications and provides concurrence • Bob Bartlett, Jean Huber and Kristina Safdie leading the effort for Martin Houghton • Expert discipline support: Corbett Smith, Tom Jackson, Sara Haugh, Isaac McGinnis, Philip Chen, Dan Powers, Dave Folta, Regan Howard, Tom Ajluni, Johnny Pelish, Syed Aziz.

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