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AEROSPACE REPORT NO. TOR-2014-02137

RF Breakdown Prevention in Spacecraft Components Product Overview

May 8, 2014

Timothy Graves Payload Engineering Space Based Surveillance Division

Prepared for: Space and Missile Systems Center Air Force Space Command 483 N. Aviation Blvd. El Segundo, CA 90245-2808

Contract No. FA8802-14-C-0001

Authorized by: Space Systems Group

Developed in conjunction with Government and Industry contributions as part of the U.S. Space Program Mission Assurance Improvement Workshop. Distribution Statement A: Approved for public release; distribution unlimited.

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Acknowledgments

This presentation provides a summary overview of TOR-2014-02198, “RF Breakdown Prevention in Spacecraft Components”, which was produced as part of the Mission Assurance Improvement Workshop. This document was created by multiple authors throughout the government and the aerospace industry. For their content contributions, we thank the following contributing authors for making this collaborative effort possible: Kevin Campbell, Exelis Incorporated Will Caven, SSL James Farrell, The Boeing Company Robert Frankievich, Lockheed Martin Corporation Aimee Hubble, PhD, The Aerospace Corporation Thomas Musselman, The Boeing Company Preston Partridge, The Aerospace Corporation Mike Settember, Jet Propulsion Laboratory Jian Xu, Aeroflex Incorporated A special thank you for co-leading this team and efforts to ensure completeness and quality of this document goes to Dr. Jeffrey Tate, Raytheon Space and Airborne Systems.

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Acknowledgments (Cont)

The authors deeply appreciate the contributions of the subject matter experts who reviewed the document: Jerry Michaelson, The Aerospace Corporation Lee Olson, The Aerospace Corporation Anthony Owens, Raytheon Corporation Joseph Roubal, Aeroflex, Inc Paul Tatomir, The Boeing Company Marty Bieti, The Boeing Company Luigi Greco, Exelis, Inc. Douglas Dawson, JPL Richard Hodges, JPL Dennis Mlynarski, Lockheed Martin Corporation Steve Holme, SSL Larry Arnett, SSL Ghislain Turgeon, SSL Rob Singh, SSL Richard Bennett, Flight Microwave Corporation Victor Sank, NASA – GFSC Bruce Flanick, Northrop Grumman Stefan Vincent, Orbital Lester Lopez, Harris Corporation

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U.S. SPACE PROGRAM MISSION ASSURANCE IMPROVEMENT WORKSHOP ORBITAL SCIENCES CORPORATION | DULLES, VA | MAY 7 - 8, 2014

Product Overview

RF Breakdown Prevention in Spacecraft Components

Jeffrey Tate, Raytheon Company Timothy Graves, The Aerospace Corporation

May 8, 2014 This presentation provides a summary overview of TOR-2014-02198, “RF Breakdown Prevention in Spacecraft Components”, which was produced as part of the Mission Assurance Improvement Workshop.

U.S. SPACE PROGRAM MAIW | DULLES, VA | MAY 7 - 8, 2014 2

Motivation for RF Breakdown Prevention Standard Problem Statement • Ionization breakdown and multipactor causing multiple failures in RF components

– Increasing satellite powers and bandwidth requirements will continue to increase risk • Significant ground/on-orbit failures on current programs

– High power filters, isolator devices, antenna system components • Reliance on limited SME support, minimal standardization/TLYF/design criteria

U.S. SPACE PROGRAM MAIW | DULLES, VA | MAY 7 - 8, 2014 3

Motivation for RF Breakdown Prevention Standard

Component Design

• Large margins required due to model uncertainty, no standard process

• Modern analysis tools and mitigation techniques

Need: Better numerical and prediction tool implementation

Ground Test and Integration

• Detection and requirements difficult • Test diagnostic implementation,

test-like-you-fly requirements

Need: More sensitive and standardized diagnostics, test-like-you-fly requirements

System Analysis and Requirements

• Different approach for many programs, suppliers, etc.

• Worst case analysis, risk assessment for system and component susceptibility

Need: Uniform baseline for defining worst-case, bounding requirements MAIW Goals

→ Develop new Standard to directly impact US RF satellite industry

→ Provide guidance for requirement baselines with industry insight

→ Address deficiencies in previous/current processes

→ Outline future directions for research to aid industry

U.S. SPACE PROGRAM MAIW | DULLES, VA | MAY 7 - 8, 2014 4

Agenda • Product overview of RF breakdown prevention process

– Minimum multipactor criteria – Worst case system analysis – Margin requirements and verification

process requirements

• SME comments and Workshop products

• Document intended use – Agency adoptions, customer/contractor/supplier

implementation

• Topic Follow-on Recommendations – Future effort to enhance this document and

support other classes of RF breakdown

• Team Membership and Recognition

U.S. SPACE PROGRAM MAIW | DULLES, VA | MAY 7 - 8, 2014 5

RF Breakdown Prevention Standard Charter

• Develop industry-wide standard for component, subsystem, and system test with respect to RF breakdown risk mitigation in RF/microwave components – Define system analysis process to determine worst case, bounding conditions

for each component – Define minimum requirement set for analysis and test to ensure proper

treatment and consideration – Reference guides for analysis and test recommended techniques – Provide standard test geometries for analysis and test facility benchmarking – Describe areas in need of further research – Recommend industry adoption (Standard/Handbook adoption)

U.S. SPACE PROGRAM MAIW | DULLES, VA | MAY 7 - 8, 2014 6

RF Breakdown Prevention Standard – Product Traceability

Deliverable Requested Document applicability, device class/category definitions, process description Worst case analysis to define system parameters and component power levels

Margin requirements for component types

Analysis minimum requirements

Component test minimum requirements

Reference guides for test and analysis

U.S. SPACE PROGRAM MAIW | DULLES, VA | MAY 7 - 8, 2014 7

Product Overview – A New Process Approach • Standard/Handbook for RF breakdown – multipactor discharge specific

– Ionization breakdown/corona to be covered in follow-up year • Defining minimum multipactor criteria and device classifications

– Allow process tailoring for broad applicability across many system types • Full process approach to determine worst case for each component

– Improvement over “lumping” excess margin to cover multiple uncertainties – Define worst case power based on bounding and predictable variables – Each section of document builds on previous sections

U.S. SPACE PROGRAM MAIW | DULLES, VA | MAY 7 - 8, 2014 8

Product Overview – New requirement definitions • Defining margin requirements

– Using worst case system analysis, provide requirements for margins • Realistic requirements supported by full process approach

• Requirement verification: Minimum criteria

– Analysis: Minimum requirements for modern methods and tools

– Test: TLYF implementation for proper screening/detection

U.S. SPACE PROGRAM MAIW | DULLES, VA | MAY 7 - 8, 2014 9

Product Overview – Recommended Methods • Guidance/Recommendations for analysis and test methods

– Provide industry best practices for both analysis and test

• Analysis techniques: process description and recommendations

• Proper testing: examples and

considerations – Data collection – Recommended diagnostics – Pass/Fail Criteria – Test operation

U.S. SPACE PROGRAM MAIW | DULLES, VA | MAY 7 - 8, 2014 10

Workshop Objectives and Accomplishments • Incoming objectives of workshop Agreement on process elements – worst case, baseline conditions for

analysis and test Comparison to other documents and rationale for differences Rationale for minimum verification requirements Document structure including multiple volumes, handbook versus standard

• Workshop Accomplishments Dispositioned all SME comments No major or technical actions, only remaining to refine document language Action ECD May 14, 2014 Discussed proposed follow-on activities

U.S. SPACE PROGRAM MAIW | DULLES, VA | MAY 7 - 8, 2014 11

Disposition of Comments • Over 250 comments from SMEs, currently dispositioning in small

committee meetings – Comments coming in from vendors, contractors, and customer communities – 99% have been discussed and implemented

• Common themes with comments Formatting for standard adoption

(refining to shall statements) Comparison to previous (ESA) methods Use of different materials in the analysis

margin determination Applying system analysis to any

system Thermal requirements for multipactor testing Defining pass fail criteria Multicarrier power definition – not

covered in FY14 effort

8 54

123 11

25 3 5 19 BES LM SSL ITT A Tech-X FMC NG

U.S. SPACE PROGRAM MAIW | DULLES, VA | MAY 7 - 8, 2014 12

Intended Product Use (1 of 2) • Improved “front-end” guidance for multipactor risk mitigation for

RF/microwave spacecraft components – Applicability for all parties within the component life cycle

• Customer: Requirement definition • Contractor: System engineering requirement flow-down to suppliers • Supplier: Minimum requirement set for analysis and test

– Product will be updated with future improvements in analysis and test methods – Margin requirements can be updated based on new/updated data

• Implementation for any spacecraft system – Applicable for government, civil, and commercial systems

• Customer benefit to incorporating Standard – Developed cooperatively by industry, uses modern-day tools, provides end-to-

end risk mitigation process

U.S. SPACE PROGRAM MAIW | DULLES, VA | MAY 7 - 8, 2014 13

Intended Product Use (2 of 2) • Long term goal: document in contract language from program initiation

– Current programs still experiencing issues, document features already in use • Creation of “official” Standard and agency adoption

– Determine potential adopting agencies via DoD, IEEE, AIAA, etc. – Technical communication/vetting through conferences, international

collaboration • Slated for 2015 Workshop in RF Breakdown, International Microwave Symposium

• Standard will drive future research for improved scientific understanding and engineering techniques – Multicarrier, surface treatments, advanced diagnostics require support for

development – Current Multidisciplinary University Research Initiative (MURI) effort under

investigation • RF breakdown is inherently multi-disciplinary: RF engineering, plasma physics,

surface science • Need for new innovation and industrial expert base – foster through university

research

U.S. SPACE PROGRAM MAIW | DULLES, VA | MAY 7 - 8, 2014 14

Topic Follow-on Recommendations

• Standard Adoption (Agency, Formatting, Multi-volume document) • Multicarrier power definition

– Research currently underway at Aerospace with initial green light from industry – Further work to refine method and apply to different complex systems

• Ionization breakdown requirements and minimum verification requirements – No existing document in any forum, domestic or international – Research necessary to refine requirements – Potential for new volume within existing document – many general principals,

diagnostics are similar • MURI investigation for future RF breakdown research

U.S. SPACE PROGRAM MAIW | DULLES, VA | MAY 7 - 8, 2014 15

Team Introductions

Company Core Team Member Subject Matter Expert

The Aerospace Corp. Timothy Graves, Preston Partridge, Aimee Hubble

Jerry Michaelson, Lee Olson

Raytheon Corp. Jeffrey Tate Anthony Owens

Aeroflex Inc. Jian Xu Joseph Roubal

The Boeing Company James Farrell, Tom Musselman Paul Tatomir, Marty Bieti Exelis Inc. Kevin Campbell Luigi Greco

JPL Mike Settember Douglas Dawson, Richard Hodges

Lockheed Martin Corp. Robert Frankievich Dennis Mlynarski

SSL Will Caven Steve Holme, Larry Arnett, Ghislain Turgeon, Rob Singh

Flight Microwave Corp. Richard Bennett

NASA – GFSC Victor Sank

Northrop Grumman Bruce Flanick

Orbital Stefan Vincent

Harris Corp. Lester Lopez

Approved Electronically by:

AEROSPACE REPORT NO.TOR-2014-02137

RF Breakdown Prevention in Spacecraft Components Product Overview

Jacqueline M. Wyrwitzke, PRINCDIRECTORMISSION ASSURANCE SUBDIVISIONSYSTEMS ENGINEERING DIVISIONENGINEERING & TECHNOLOGYGROUP

Russell E. Averill, GENERAL MANAGERSPACE BASED SURVEILLANCEDIVISIONSPACE PROGRAM OPERATIONS

David J. Gorney, EXECUTIVE VPSPACE SYSTEMS GROUP

Jackie M. Webb-Larkin, SECURITYSPECIALIST IIIGOVERNMENT SECURITYSECURITY OPERATIONSOPERATIONS & SUPPORT GROUP

© The Aerospace Corporation, 2014.

All trademarks, service marks, and trade names are the property of their respective owners.

SK0668

Technical Peer Review Performed by:

AEROSPACE REPORT NO.TOR-2014-02137

RF Breakdown Prevention in Spacecraft Components Product Overview

Jacqueline M. Wyrwitzke, PRINC DIRECTORMISSION ASSURANCE SUBDIVISIONSYSTEMS ENGINEERING DIVISIONENGINEERING & TECHNOLOGY GROUP

© The Aerospace Corporation, 2014.

All trademarks, service marks, and trade names are the property of their respective owners.

SK0668

External Distribution

REPORT TITLE

RF Breakdown Prevention in Spacecraft Components Product Overview

REPORT NO. PUBLICATION DATE SECURITY CLASSIFICATION

TOR-2014-02137 May 8, 2014 UNCLASSIFIED

Charles AbernethyAerojetcharles.abernethy@aerojet.com

Carlo AbesamisNASAabesamis@jpl.nasa.gov

Andrew AdamsBoeingandrew.c.adams@boeing.com

David AdcockOrbitaladcock.david@orbital.com

Robert AdkissonBoeingrobert.w.adkisson@boeing.com

Scott AndersonSeakerscott.anderson@seaker.com

Aaron ApruzzeseATKaaron.apruzzese@atk.com

Chic AreyNROareyc@nro.mil

Brent ArmandOrbitalArmand.Brent@orbital.com

Larry ArnettLoralarnett.larry@ssd.loral.com

Ken BaierLockheed Martinken.b.baier@lmco.com

Dean BakerNRObakerdea@nro.mil

Mark BaldwinRaytheonMark.L.Baldwin@raytheon.com

Lisa BarbozaGeneral DynamicsLisa.Barboza@gd-ais.com

Glenn BarneyComdev-USAglenn.barney@comdex-use.com

David BeckwithNRObeckwith@nro.mil

Theresa BeechMetispacetbeech@metispace.com

Barry BirdsongMDAbarry.birdsong@mda.mil

Ruth BishopNorthrop Grummanruth.bishop@ngc.com

Robert BodemullerBallrbodemuller@ball.com

Silvia BouchardNorthrop Grummansilver.bouchard@ngc.com

Wayne BrownULA Launchwayne.brown@ulalaunch.com

Christopher BrustDCMAChristopher.Brust@dcma.mil

Alexis BurkevicsRocketAlexis.Burkevics@rocket.com

Thomas BurnsNOAAthomas.burns@noaa.gov

Edward BushNorthrop GrummanEdward.Bush@ngs.com

Tim CahillLockheed Martintim.cahil@lmco.com

Kevin CampbellExelis Inckevin.campbell@exelisinc.com

Larry CapotsLockheed Martinlarry.capots@lmco.com

Will CavenLoralcaven.will@ssd.loral.com

Shawn CheadleLockheed Martinshawn.cheadle@lmco.com

Janica CheneyATKjanica.cheney@atk.com

Brian ClassOrbitalclass.brian@orbital.com

Brad ClevengerEMCOREbrad_clevenger@emcore.com

Jerald CogenFREQELECJerald.Cogen@FreqElec.com

Bernie CollinsDNIbernie.f.collins@dni.gov

Jeff ConyersBalljconyers@ball.com

Kevin CrackelAerojetkevin.crackel@aerojet.com

James CreimanNorthrup GrummanJames.Creiman@ngc.com

Stephen CrossULA Launchstephen.d.cross@ulalaunch.com

Shawn CullenJDSUshawn.cullen@jdsu.com

Louis D'AngeloLockheed Martinlouis.a.d'angelo@lmco.com

David DavisSMCDavid.Davis.3@us.af.mil

Douglas DawsonNASAdouglas.e.dawson@jpl.nasa.gov

Jaclyn DeckerOrbitaldecker.jaclun@orbital.com

Larry DeFillipoOrbitaldefillipo.aryy@orbital.com

Ken DodsonSSL MDAken.dodson@sslmda.com

Tom DonehueATKtom.donehue@atk.com

Mary D'OrdineBallmdordine@ball.com

Susanne DuboisNorthrop Grummansusanne.dubois@ngc.com

David EckhardtBAE Systemsdavid.g.eckhardt@baesystems.com

Robert EllsworthBoeingrobert.h.ellsworth@boeing.com

Matt FahlHarris Corporationmfahl@harris.com

James FarrellBoeingjames.t.farrell@boeing.com

Tracy FiedlerRaytheontracy.m.fiedler@raytheon.com

Brad FieldsOrbitalfields.brad@orbital.com

Sherri FikeBallsfike@ball.com

Richard FinkNROrichard.fink@nro.mil

Bruce FlanickNorthrop Grummanbruce.flanick@ngc.com

Mike FloydGeneral DynamicsMike.Floyd@gdc4s.com

David FordFlextronicsdavid.ford@flextronics.com

Robert FrankievichLockheed Martinrobert.h.frankievich@lmco.com

Bill FrazierBallwfrazier@ball.com

Jace GardnerBalljgardner@ball.com

Matteo GennaSSLmatteo.genna@sslmda.com

Helen GjerdeLockheed Martinhelen.gjerde@lmco.con

Ricardo GonzalezBAE Systemsricardo.gonzalez@baesystems.com

Dale GordonRocketdale.gordon@rocket.com

Chuck GrayFescorpChuckg@fescorp.com

Luigi GrecoExelis Incluigi.greco@exelisinc.com

Gregory HafnerOrbitalHafner.Gregory@orbital.com

Joe HamanBalljhaman@ball.com

Lilian HannaBoeinglilian.hanna@boeing.com

Harold HarderBoeingharold.m.harder@boeing.com

Bob HarrSeakerbob.harr@seaker.com

Frederick HawthorneLockheed Martinfrederick.d.hawthorne@lmco.com

Ben HoangOrbitalHoang.Ben@orbital.com

Rosemary HobartHobart Machinedrosemary@hobartmachined.com

Richard HodgesNASArichard.e.hodges@jpl.nasa.gov

Paul HopkinsLockheed Martinpaul.c.hopkins@lmco.com

Kevin HorganNASAkevin.horgan@nasa.gov

Eugene JaramilloRaytheoneugenejaramillo@raytheon.com

Dan JarmelNorthrop Grummandan.jarmel@ngc.com

Robert JenningsRaytheonrjennings@raytheon.com

Mike JensenULA Launchmike.jensen@ulalaunch.com

Amanda JohnsonOrbitaljohnson.amanda@orbital.com

Edward JopsonNorthrop Grummanedward.jopson@ngc.com

Jim Juddorbitaljudd.jim@orbital.com

Geoffrey KaczynskiNEA Electronicsgkazynik@neaelectonics.com

Mike KahlerBallmkahler@ball.com

Yehwan KimMoogykim@moog.com

Jeff KincaidPowerJeffrey.Kincaid@pwr.utc.com

Mark KingMicopacmarkking@micropac.com

Andrew KingBoeingandrew.m.king@boeing.com

Byron KnightNROknightby@nro.mil

Hans KoenigsmannSpaceXhans.koenigsmann@spacex.com

James KooryRocketjames.koory@rocket.com

Brian KosinskiSSLKosinski.Brian@ssd.loral.com

John KowalchikLockheed Martinjohn.j.kowalchik@lmco.com

Rick KrauseBallrkrause@ball.com

Steve KreinATKsteve.krein@atk.com

Steve KuritzNorthrop Grummansteve.kuritz@ngc.com

Louise LadowSeakerlouise.ladow@seaker.com

C J LandHarriscland@harris.com

Chris LaroccaEMCOREclarocca@emcore.com

Robert LaskyOrbitallasky.robert@orbital.com

Eric LauSSLlau.eric@ssd.loral.com

Marvin LeBlancNOAAMarvin.LeBlanc@noaa.gov

Scott LeeNorthrop GrummanScott.lee@ngc.com

Don LeRoyBarden Bearingsdleroy@bardenbearings.com

Scot LichtyLockheed Martinscot.r.lichty@lmco.com

Sultan Ali LilaniIntegra - Techsultan.lilani@integra-tech.com

Josh LindleyMDAjoshua.lindley@mda.mil

Henry LivingstonBAE Systemshenry.c.livingson@baesystems.com

Art LoftonNorthrop GrummanArt.Lofton@ngc.com

James LomanSSLjames.loman@sslmda.com

Jim LomanSSLloman.james@ssd.loral.com

Lester LopezHarrisllopez04@harris.com

Frank Lucca1-3 Comfrank.l.lucca@1-3com.com

Joan LumBoeingjoan.l.lum@boeing.com

Brian MackOrbitalmack.brian@orbital.com

Julio MalagaOrbitalmalaga.julio@orbital.com

Kevin Mallon1-3 ComKevin.P.Mallon@1-3com.com

Miroslav MaramicaArea 51miroslav@area51esq.com

John Mc BrideOrbitalMcbride.John@orbital.com

Ian McDonaldBAE Systemsian.a.mcdonald@baesystems.com

Kurt MeisterHoneywellkurt.meister@honeywell.com

Jeff MendenhallMITmendenhall@ll.mit.edu

Jo MerrittAVTECjmerritt@avtec.com

Charles MillsLockheed Martincharles.a.mills@lmco.com

Edmond MitchellAPLedmond.mitchell@jhuapl.edu

Dennis MlynarskiLockheed Martindennis.mlynarski@lmco.com

George MockNYE Lubricantsgbm3@nyelubricants.com

Nancy MurraySafety BatteriesNancy.murray@saftbatteries.com

Deanna MusilSSLdeanna.musil@sslmda.com

Thomas MusselmanBoeingthomas.e.musselman@boeing.com

John NelsonLockheed Martinjohn.d.nelson@lmco.com

Dave NovotneyEBAdbnovotney@eba-d.com

Ron NowlinEaglePicherron.nowlin@eaglepicher.com

Mike NumbergerNavynurnberger@nrl.navy.mil

Michael O'BrienExelis Incmichael.obrien@exelisinc.com

Michael OgneovskiExelis Incmichael.ognenovski@exelisinc.com

Debra OlejniczakNorthrop GrummanDebra.Olejniczak@ngc.com

Larry OstendorfpsemcLostendorf@psemc.com

Anthony OwensRaytheonanthony_owens@raytheon.com

Joseph PackardExelis IncJoseph.packard@exelisinc.com

Peter PallinSSLpeter.pallin@sslmda.com

Richard PatricanRaytheonRichard.A.Patrican@raytheon.com

Paulette MeganOrbitalpaulette.megan@orbital.com

Mark PazderMoogmpazder@moog.com

Steven PereiraAPLSteven.Pereira@jhuapl.edu

Richard PfistererAPLRichard.Pfisterer@jhuapl.edu

Angela PhillipsRaytheonamphillips@raytheon.com

Dave PinkleyBalldpinkley@ball.com

Kay RandNorthrop Grummankay.rand@ngc.com

David ReaBAE Systemsdavid.a.rea@baesystems.com

Forrest ReedEaglePicherforrest.reed@eaglepicher.com

Thomas ReinselRaytheonthomas_j_reinsel@raytheon.com

Bob RiccoNorthrop Grummanbob.ricco@ngc.com

Mike RiceRT Logicmrice@rtlogic.com

Sally RichardsonOrbitalrichardson.sally@orbital.com

Troy RodriquezSierra Microwavetroy_rodriquez@sierramicrowave.com

Ralph RoeNASAralph.r.roe@nasa.gov

Mike RollerUTASmike.roller@utas.utc.com

John RotondoBoeingjohn.l.rotondo@boeing.com

William RozeaRocketwilliam.rozea@rocket.com

Dennis RubienNorthrop Grummandennis.rubien@ngc.com

Larry RubinSSLRubin.larry@ssd.loral.com

Lane SaechaoRocketlane.saechao@rocket.com

Michael SampsonNASAmichael.j.sampson@nasa.gov

Victor SankNASAvictor.j.sank@nasa.gov

Don SawyerAVNETdon.sawyer@avnet.com

Fred SchippMDA - Navyfrederick.schipp@navy.mil

Jim SchultzBoeingjames.w.schultz@boeing.com

Gerald SchumannNASAgerald.d.schumann@nasa.gov

Annie SennetSafety BatteriesAnnie.Sennet@saftbarries.com

Michael SettemberNASAmichael.a.settember@jpl.nasa.gov

Tom SharpeSMT Corptsharpe@smtcorp.com

Jonathan SheffieldSSLjonathan.sheffield@sslmda.com

Andrew ShroyerBallashroyer@ball.com

Fredic SilvermanHSTCfsilverman@hstc.com

Rob SinghSSLrob.singh@sslmda.com

Kevin SinkTTINCkevin.sink@ttinc.com

Melanie SloaneLockheed Martinmelanie.sloane@lmco.com

Jerry SobetskiLockheed Martinjerome.f.sobetski@lmco.com

LaKeisha SouterNorthrop Grummanlakeisha.souter@ngc.com

Jerry SpindlerExeclis IncJerry.Spindler@exelisinc.com

Peter StoltzTX Corppstoltz@txcorp.com

Thomas StoutNorthrop Grummanthomas.stout@ngc.com

George StykExelis Incgeorge.styk@exelisinc.com

David SwansonOrbitalswanson.david@orbital.com

Mauricio TapiaOribitaltapia.mauricio@orbital.com

Jeffrey TateRaytheonjeffery_tate@raytheon.com

Bill TothNorthrop Grummanwilliam.toth@ngc.com

Ghislain TurgeonSSLghislain.turgeon@sslmda.com

Deborah ValleyMITdeborah.valley@ll.mit.edu

Fred Van MilligenJDSUfvanmilligen@jdsu.com

Marvin VanderWegSpaceXmarvin.vanderwag@spacex.com

Gerrit VanOmmeringSSLgerrit.vanommering@sslmda.com

Michael VerzuhBallmverzuh@ball.com

John ViljaPower UTCjussi.vilja@pwr.utc.com

Vinvent StefanOrbitalvincent.stefan@orbital.com

James WadeRaytheonjames.w.wade@raytheon.com

John WalkerSSLJohnF.Walker@sslmda.com

Brian WeirBooz Allen Hamiltonweir_brian@bah.com

Arthur WeissPower UTCarthur.weiss@pwr.utc.com

Craig WesserNorhtrop Grummancraig.wesser@ngc.com

Dan WhiteComdex-USAdan.white@comdev-usa.com

Thomas WhitmeyerNASAtom.whitmeyer@nasa.gov

Charlie WhitmeyerOrbitalwhitmeyer.charlie@orbtial.com

Michael WooRaytheonmichael.woo@raytheon.com

Larry WraySSLwray.larry@ssd.loral.com

Mark WrothNorthrop Grummanmark.wroth@ngc.com

Jian XuAeroflexjian.xu@aeroflex.com

George YoungRaytheongyoung@raytheon.com

APPROVED BY_____________________________________________________________________________________      DATE___________________________________(AF OFFICE)