Charles M. SwensonMay 8, 2012

Biographical Background

Charles Swenson is a Professor of Electrical and Computer Engineering at Utah State Universitywhere he teaches graduate courses in space engineering and space science and undergraduate coursesin analog circuits. His research activities are divided between space science, instrumentation formeasuring the space environment, space systems engineering and small satellites. He has been a co-investigator and lead scientist for instrumentation on 7 different NASA sounding rocket missions andis the principal instrument scientist for the Floating Potential Measurement Unit for the InternationalSpace Station. He is the principal investigator and academic adviser for the Utah State UniversityStudent Small Satellite Program. He is a member of the organizing committee for the USU SmallSatellite Conference. His active research programs include data analysis of NASA TIMED Spacecraft,a sounding rocket mission to understand the connection between storms in the ionosphere and largeterrestrial storm systems, the USUSat program and the development of new instrumentation forunderstanding space weather. Dr. Swensons research activities are often in association with UtahState Universitys Space Dynamics Lab. He attended Utah State University where he graduatedwith a double major in Electrical Engineering and Physics and earned a Masters of Science degree inElectrical Engineering. He completed his Ph.D. at Cornell University in Electrical Engineering in 1991and joined the faculty at Utah State University that same year. He is currently the Director of theSpace Instrumentation Laboratory and the Center for Space Engineering at Utah State University. Hehas received awards for teaching and research excellence, consults for NASA where he most recentlyserved as a program Discipline scientist for the Science Mission Directorates Heliophysics Division.He has over 50 scientific publications and reports.

Educational Background

Ph.D. (1/1992) - Electrical Engineering, Cornell University, Ithaca, New YorkDissertation: In Situ Observations of an Ionospheric Critical Velocity Experiment

M.S. (6/1989) - Electrical Engineering, Utah State UniversityThesis: An Evaluation of the Plasma Frequency Probe

B.S. (6/1985) - Electrical Engineering and Physics, magna cum laude, Utah State University, Logan,Utah

Work Experence

Professor, 7/05-Present - Electrical and Computer Engineering, Utah State University

Sabbatical, 9/07-9/08 - Geospace Discipline Scientist, NASA Science Mission Directorate/Heliophysics,IPA

Sabbatical, 6/00-8/01 - Senior Scientist, The Aerospace Corporation

Associate Professor, 7/97-7/05 - Electrical and Computer Engineering, Utah State University

1994 (12 Weeks) - United States Air Force Office of Scientific Research Summer Research Program,Phillips Lab, Albuquerque, NM

1996 (12 Weeks) - United States Air Force Office of Scientific Research Summer Research Program,Phillips Lab, Albuquerque, NM

Assistant Professor, 10/91-7/97 - Electrical and Computer Engineering, Utah State University

Honors & Awards

2008 - Outstanding Service, NASA

2005 - Research Excellence, College of Engineering.

2005 - Outstanding Researcher of the Year, Department of Electrical and Computer Engineering.

2005 - Best Poster Award, 9th Spacecraft Charging Technology Conference, Tsukuba, Japan

2004 - Outstanding Faculty Employee Finalist, Utah State University.

2004 - Excellence in Education at Utah State University, Logan L.D.S Institute of Religion.

2003 - Outstanding Faculty Investigator Award, USU Space Dynamics Lab

1998 - Outstanding Teacher, Department of Electrical and Computer Engineering

1998 - Outstanding Professor, Utah State University Mortar Board

1996 - College of Engineering, Research Excellence

1996 - Escort for College of Engineering Valedictorian

1996 - Outstanding Researcher of the Year, Department of Electrical and Computer Engineering

1995 - Outstanding Adviser, Department of Electrical and Computer Engineering

1995 - Outstanding Professor, Utah State University Mortar Board

1986 - Tau Beta Phi

1985 - Phi Kapa Phi

Courses Taught 1998-2005 (spring), Semester System

ECE 1020 - Introduction to Electrical and Computer Engineering (1 semester)

ECE 2410,2270,2250 - Electrical Circuits (14 semesters)

ECE 5230 - Spacecraft Systems Engineering (12 semesters)

ECE 6240 - Engineering in the Space Environment (7 semesters)

ECE 7210 - Instrumentation for Space Sciences (9 semesters)

Courses Taught 1991-1997, Quarter System

ECE 211 - Electrical Circuits (5 quarters)

ECE 212 - Electrical Circuits (10 quarters)

ECE 401 - Probability for Signals and Systems (1 quarter)

ECE 525 - Spacecraft Avionics and Telemetry Systems (5 quarters)

ECE 631 - Space Science and Engineering (8 quarters)

ECE 732 - Instrumentation for Space Sciences (7 quarters)

Professional Activities

1989-present - Member American Geophysical Union

1983-present - Member IEEE

2005-present - Member ASEE

2009 - NASA Technical Management Cost Review SMEX Concept Study Reports

2002-2005 - NASA Sounding Rocket Working Group

1994-1996 - American Geophysical Union Committee on Atmospheric and Space Electricity - Com-mittee Member

1994 (12 Weeks) - United States Air Force Office of Scientific Research Summer Research Program,Phillips Lab, Albuquerque, NM

1996 (12 Weeks) - United States Air Force Office of Scientific Research Summer Research Program,Phillips Lab, Albuquerque, NM

1991-present - Reviewer for

•Proposal Review chairman NASA Science Mission Directorate (4-panels)

•Proposal review panel chairman and member for NASA Office of Space Science

•Geophysical Research Letters

•Annals Geophysicae

•Physics of Fluids B•IEEE, Plasma

•Society of Industrial and Applied Mathematics

•American Geophysical Union, Chapman Conference Measurement Techniques for Space Plasmas

Research Grants and Contracts

• (Pending Project) Auroral Spatial Structures Probe (ASSP), NASA ROSES GEO, 5/2010-4/2013 (Total budget $1,118,091), Role: PI

• (Pending Project) Development of a Falling Sphere Technique for E-region Wind Measurements,NASA ROSES GEO, 4/2010-3/2012 (Total budget $753,204), PI Chad Fish, Roll: CO-I

• (Pending Project) High Altitude Sporadic Iron Layers (HAIL), NASA ROSES GEO, 3/2010-2/2013, (Total budget $675,487), PI Aroh Barjatya, Role: CO-I

• (Pending Project) Rad Hard Langmuir Probe Development for Outer Planet Flagship Mission,NASA ROSES Planetary Instrument Design and Development Program (PIDDP), 01/2009 to12/2011, (Total Budget $141,903) PI: Dr. Philip Leung, Role: Co-I

• Dynamic Ionosphere Cubesat Experiment (DICE), National Science Foundation, Period Cov-ered: 09/01/09 to 08/31/12,( Total budget $1,200,000) PI: Dr G. Crowley, Roll: Co-I

• Global Ultraviolet Imager (GUVI) MO&DA (Phase E), NASA via Dixie State College, 01/01/09to 12/31/10, (Total Budget $14,942), Role PI

• Miniature Wire Boom System for CubeSat E-FieldsSpace Dynamics Lab - IRD ($75,000) 6/1/09-6/1/10, PI

• Geospace Discipline Scientist IPANASA Science Mission Directorate/Heliophysics ($286,902) 8/31/07 - 8/22/08, PI

• USUSat IV, University Nanosatellite ProgramAFOSR ($109,882) 4/1/07 - 4/1/09, PI

• Instrumentation for Space Weather (Nimbus Phase II)Air Force, ($1631,136), 6/1/06 - 10/1/07, PI

• Instrumentation for Space Weather (Nimbus Laboratory Testing)Shaffer, ($670,000), 4/1/05 - 11/30/05, PI

• TOROID: EUV PhotometerSpace Dyamics Lab IRD ($37,000), 6/1/05 - 5/31/06, PI

• USUSat III, TOROID TOmographic Remote Observer of Ionospheric DistrubancesAFOSR ($110,000) 3/1/05 - 3/1/08, PI

• Neutral Wind Coupling in the Day Side Equatorial AnomalyNASA ($245,727), 4/1/04 - 4/1/07

• Instrumentation for Space Weather (Nimbus Concept Study)Air Force, ($783,942), 6/1/04 - 5/30/05, PI

• Investigation of Mid-Latitude Ionospheric Irregularities Associated with Terrestrial WeatherSystemsNASA ($237,826), March 2004 - March 2007, CO-I Portion (PI - Dr. Earl, UTD)

• A FDTD Study of impedance probe techniquesNASA ($242,279), April 2003 - April 2006, PI

• FPMU Additions: Capacitor Change out, Additional Decoder Card, Contamination BaggingNASA ($83,388), January 2003 - September 2003, PI

• Quick To Orbit (USUSAT II)AFOSR ($100,000), April 2003 - April 2005, CO-PI (Dr. Fullmer, USU)

• Low Cost PCM encoderNSROC ($55,000), September 2003 - February 2004, PI

• Atomic Oxygen Instrumentation and CalibrationSpace Dynamics Lab ($50,000), July 2003 - July 2004, PI

• Simulation of a Collisionless Time-of-Flight Mass Spectrometer Design for Upper AtmosphericMeasurement of the Density and Velocity-Distributions of Neutral Particles, Space DynamicsLab ($37,000), July 2003 - July 2004, CO-I (PI Dr. Dyer, SDL)

• Rocket Investigation of Scattering Layers in the Bottomside Equatorial F-Region IonosphereNASA ($199,294), April 2002 - April 2005, CO-I Portion (PI - Dr. Hysell, Cornell)

• Global Ultraviolet Imager (GUVI) MO&DA (Phase E) InvestigationThe Aerospace Corporation ($107,999), October 2001 - September 2005, PI

• Floating Potential Measurement Unit (FPMU)NASA Johnson Space Center ($2,000,000), October 2002 - January 2003, PI

• Coupling of Dynamics and Aurora Launch DelayNASA ($41,000), October 2001 – October 2002, CO-I Portion (PI - Dr. Christensen, Aerospace)

• USUSAT, University Nanosat ProgramDARPA/AFOSR ($100,000), January 1, 1999 - December 31, 2001, CO-I (PI - Dr. Redd, USU)

• Impedance Probe ResearchSpace Dynamics Lab IRD ($35,000), One Year, 1998-1999 extended to June 2000, PI

• Rocket Investigation of Winds Associated with E-Region Ionization LayersNASA ($189,276), April 2000- April 2003, CO-I portion (PI Dr. Earl, UTD)

• ION-F ScienceNASA ($386,943) April 2000 - April 2003, Co-I (PI Dr. Fejer, USU)

• CODA — Coupling of Dynamics and AuroraNASA ($197,040), Two years FY 1998 – 1999, CO-I Portion (PI - Dr. Christensen, Aerospace)

• Balloon Retromodulator Experiment Post-flight AnalysisDOD/AFOSR ($25,000), One Year, January 1, 1997 - December 31, 1998, PI

• Test flight of a Miniature, Commercial GPS Receiver for Small Sounding Rocket TrackingNASA ($45,000), One Year, Starting FY 97, PI

• Adaptation of a Miniature, Commercial GPS Receiver to Small Sounding Rocket TrackingNASA ($28,000), One Year, Starting FY 96, PI

• An Experiment to Study Sporadic Sodium Layers in the Earth’s Mesosphere and Lower Ther-mosphereNASA ($118,201), June 1, 1995 - June 1, 1998, , CO-I Portion (PI - Dr. Kelly, Cornell)

• Plasma Frequency Probe Data Reduction for Thunderstom IIICornell University ($9,000), October 1, 1995 - December 31, 1995, PI

• Low Power Retromodulator based Optical Transceiver for Satellite Communications - MatchingFunding.USUF ($30,000), January 1, 1995 - December 31, 1995, PI

• Low Power Retromodulator based Optical Transceiver for Satellite Communications.DOD/AFOSR Grant No. F49620-93-C-0063 ($25,000), January 1, 1995 - December 31, 1995,PI

• Retromodulator Assembly.DOD/USAF/Phillips Lab Grant No. F29650-94-W-0997 ($24,988), September 24, 1994 - April30, 1994, PI

• Reflected Laser Communication Systems for Low Earth Orbit Satellites - Renewal. USU fundedgrant ($14,973), July 1, 1994 - June 30, 1995, PI

• Reflected Laser Communication Systems for Low Earth Orbit Satellites. USU funded grant($12,342), July 1, 1992 - June 30, 1993, PI

• Study of In Situ Evidence of Alfven’s Critical Ionization Velocity EffectNASA Grant No. NAGW-2852, ($34,942) April 1, 1992 - April 1, 1993, PI

Dissertations and Thesis

Ph.D. DissertationsPat Patterson 2005 In Situ Measurements of Atomic Oxygen in the Malt Region:

The Atox Resonant Flourescence/Absorption SensorJeff Ward 2005 The Extraction of Additional Plasma Parameters Out of Plasma

Impedance Probe DataSid Henderson 2005 Global Characterization of the Equatorial Ionospheric Anomaly

with Data from the Global Ultraviolet ImagerAllan McInnes 2007 A Formal Approach to Specifing and Verifying Spacecraft Be-

haviorAroh Barjatya 2007 Langmuir Probe Measurments in the Ionsphere

M.S. Thesis and ReportsJohn Allan Stevens 1996 Satellite Ground Station ControlStephen E. Clarke 1996Gary L. Jensen 1997 Reflected Laser Communication Systems for SpaceLaurel L. Abeyta 1997 Utah State University Small Rocket ProgramScott A. Heritch 1997 Super Heterodyne Capacitance ProbeDarin K. Fowers 1998 GPS Receiver For a Small RocketKerry M. Nelson 1998 Low Light Level CCD Camera InstrumentationPavel V. Nikitin 1998 Impedance of an Antenna in a PlasmaMark Wilkinson 1999 Design of a Satellite Tracking Station For Remote Operations

and Multi-User ObservationJohn Jensen 2000 The Design of the Command and Data Handling Subsystem

Used by the Ionospheric Observation Nanosatellite FormationAnuradah Chandrasekaran 2002 The Design of the Communication and Telemetry System Used

by the Ionospheric Measurement Nanosatellite-Formation (ION-F) Mission

Jeff Ward 2002 A Model of Plasma Frequency Probes Utilizing Plasma FluidEquations

Todd Humphreys 2003 Attitude Determination for Small Satellites With Modest Point-ing Constraints

Aroh Barjatya 2003 USUSAT Camera SystemLin Niu 2004 The Design of Ion-F Downlink communications SoftwareSid Stock 2004 The Design and Implementation of the Communications Down-

line for the Ionospheric Measurements Nanosatellite-Formation(ION-F)

Chad Carlson 2004 Next Generation Plasma Frequency Probe InstrumentationTechnique

Asti Bhatt 2004 Ionospheric Radar Observations of Heater-Induced Field-Aligned Irregularities

Balachander Srinivasan 2004 Power-Aware Mode Management Software for a NanosatelliteKrishna Kurra 2004 Calibration of Plasma Impedance Probe on the Floating Poten-

tial Measurement UnitJeffrey Henry 2004 Implementation of a User-Configurable Low Cost Telemetry En-

coderOmar Morales 2004 Digital Design for a Sweeping Langmuir Probe Board

Chad Fish 2005 Design, Development, Test, and Calibration of the Floating Po-tential Measurement Unit Sensor Suite

Matthew Warner 2005 Design and Analysis of the Communication System for USUSAT2

Pranay Gupta 2005 USUSat II Micro-Satellite Power System Theory, Design andTesting.

Albert Hummel 2005 The Plasma Impedance Probe: A Quadrature Sampling Tech-nique

Scott Cornelsen 2005 Electronics Design of the Aglite-Lidar InstrumentSeth Humphries 2005 Calibration and Results of the Equis II Plasma Impedance

ProbesJohn Salmon 2005 Conceptual Design of a Far Ultraviolet Photometer for Tomo-

graphic Measurements of the Upper IonosphereJason Bingham 2006 A Digital Design for a Plasma Impedance ProbeTimothy B. Campbell 2006 Low-Cost Telemetry Encoder Backplane CommunicationMatthew Carney 2006 The Design, Simulation , and Testing of the Toroid Communi-

cation System from a Systems PerspectiveJared Crace 2007 Toroid Software SubsystemWayne Sanderson 2007 The History and Dynamics of the Plasma Impedance ProbeChristian Marchant 2007 Algorithm Development of the AGLITE-LIDAR InstrumentJayaprabha Shankar 2007 Analysis of the Day Side equatorial AnomalyJohn Pratt 2009 Native Earth Electric Field Measurements Using Small Space-

craft in Low Earth OrbitJessica Gregory 2009 Design, Test and Calibration of the Utah State University Float-

ing Potential ProbeJoel Nelson 2010 TBD

Publications of Charles M. Swenson

Journal Publications

• G. D. Earle, P. Bhaneja, P. A. Roddy, C. M. Swenson, A. Barjatya, R. L. Bishop, T. W. Bullett,G. Crowley, R. Redmon, K. Groves, R. Cosgrove, and Sharon L. Vadas. A comprehensive rocketand radar study of midlatitude spread f. J. Geophys. Res., 115:A12339, 2010.

• Aroh Barjatya, Charles M. Swenson, Donald C. Thompson, and Jr. Kenneth H. Wright. Invitedarticle: Data analysis of the floating potential measurement unit aboard the international spacestation. Review of Scientific Instruments, 80(4), 2009.

• K. Wright, C.M. Swenson, D.T. Thompson, A. Barjatya, S. Koontz, T. Schneider, J. Vaughn,J. Minow, P. Craven, V. Coffey, L. Parker, and T. Bui. Charging of the international spacestation as observed by the floating potential measurement unit: Initial results. IEEE Trans.Plasma Sci., 2008.

• E. Spencer, S. Patra, T. Andriyas, C. Swenson, J. Ward, and A. Barjatya. Electron den-sity and electron neutral collision frequency in the ionosphere using plasma impedance probemeasurements. J. Geophys. Res., page doi:10.1029/2007JA013004, 2008.

• P. A. Roddy, G. D. Earle, C. M. Swenson, C. G. Carlson, and T. W. Bullett. The compositionand horizontal homogeneity of e region plasma layers. J. Geophys. Res., 112(A06312):doi:10.1029/2006JA2007.

• A. Barjatya and C. M. Swenson. Observations of triboelectric charging effects on Langmuir-typeprobes in dusty plasma. J. Geophys. Res., 111(A10302):doi:10.1029/2006JA011806, Oct 2006.

• S. L. England, T. J. Immel, E. Sagawa, S. B. Henderson, M. E. Hagan, S. B. Mende, H. U. Frey,C. M. Swenson, and L. J. Paxton. Effect of atmospheric tides on the morphology of the quiettime, postsunset equatorial ionospheric anomaly. J. Geophys. Res., 111:doi:10.1029/2006JA011795,2006.

• D. L. Hysell, M. F. Larsen, C. M. Swenson, A. Barjatya, T. F. Wheeler, T. W. Bullett, R. F.Woodman, M. F. Sarango, J. L. Chau, and D. Sponseller. Rocket and radar investigation ofbackground electrodynamics and bottom-type scattering layers at the onset of equatorial spreadF. Ann. Geophys., 24:1387–1400, 2006. www.ann-geophys.net/24/1387/2006/.

• D. L. Hysell, M. F. Larsen, C. M. Swenson, and T. F. Wheeler. Shear flow effects at the onsetof equatorial spreadF. J. Geophys. Res., 111(A11317):doi:10.1029/2006JA011963, 2006.

• T. J. Immel, E. Sagawa, S. L. England, S. B. Henderson, M. E. Hagan, S. B. Mende, H. U. Frey,C. M. Swenson, and L. J. Paxton. Control of equatorial ionospheric morphology by atmospherictides. J. Geophys. Res., 33(L15108):doi:10.1029/2006GL026161, 2006.

• D. L. Hysell, M. F. Larsen, C. M. Swenson, A. Barjatya, T. F. Wheeler, M. F. Sarango, R. F.Woodman, and J. L. Chau. Onset conditions for equatorial spread F determined during equisii. Geophys. Res. Lett., 32(L24104):doi:10.1029/2005GL024743, 2005.

• S. B. Henderson, C. M. Swenson, J. H. Gunther, A. B. Christensen, and L. J. Paxton. Methodfor characterization of the equatorial anomaly using image subspace analysis of guvi data. J.Geophys. Res., 2005. Submitted 2004, Resubmitted Feburary 2005, Accepted April 2005.

• S. B. Henderson, C. M. Swenson, A. B. Christensen, and L. J. Paxton. Morphology of theequatorial anomaly and equatorial plasma bubbles using image subspace analysis of guvi data.J. Geophys. Res., 2005. Submitted 2004, Resubmitted Feburary 2005, Accepted June 2005.

• Jeffrey Ward, Charles Swenson, and Cynthia Furse. The impedance of a short dipole antennain a magnitized plasma via a finite difference time domain model. IEEE Trans. AntennasPropagat., 53(8):2711–2718, August 2005.

• R. L. Bishop, G. D. Earle, M. F. Larsen, C. M. Swenson, C. G. Carlson, P. A. Roddy, C. Fish, andT. W. Bullett. Sequential observations of the local neutral wind field structure associated withe-region plasma layers. Geophys. Res. Lett., 110(A04309), 2005. doi:10.1029/2004JA010686.

• P. A. Roddy, G. D. Earle, C. M. Swenson, C. G. Carlson, and T. W. Bullett. Relative con-centrations of molecular and metallic ions in midlatitude intermediate and sporadic-e layers.Geophys. Res. Lett., 31:L19807, October 2004.

• A. .B. Christensen, L. Paxton, S. Avery, J. Craven, G. Crowley, D. Humm, H. Kil, R. Meier,C. Meng, D. Morrision, B. Ogorzalek, P. Straus, D. Strickland, C. Swenson, R. walterscheid,B. Wolven, and Y. Zhang. Initial observations with the global ultraviolet imager (guvi) in thenasa timed satellite mission. J. Geophys. Res., 108(A12):1451, December 2003.

• Pavel Nikitin and Charles Swenson. Impedance of a short dipole antenna in a cold plasma.IEEE Trans. Antennas Propagat., 49(10):1377–1381, October 2001.

• S. D. Baker, M.C. Kelley, C.M. Swenson, J. Bonnell, and D.V. Hahn. Generation of electrostaticemissions by lightning-induced whistler-mode radiation over thunderstorms. J. Atmos. Terr.Phys., 62:1393–1404, 2000.

• O. Bolin, N. Brenning, C. M. Swenson, and F. Primdahl. CRIT II electric and magneticobservations inside and outside an ionizing neutral jet. J. Geophys. Res., 101(A9):19729–19744, September 1996.

• O. Bolin, N. Brenning, C. M. Swenson, and F. Primdahl. Momentum and energy transfer inan ionospheric critical ionization velocity experiment. Phys. Rev. Letters, 75(20):3673–3676,November 1995.

• D. L. Hysell, M. C. Kelley, W. E. Swartz, R. F. Pfaff, and C. M. Swenson. Steepened structuresin equatorial spread F 1. new observations. J. Geophys. Res., 99(A5):8827–8840, May 1994.

• Charles M. Swenson. The critical velocity effect and recent space experiments. Encyclia,69:273–296, 1992.

• M. C. Kelley, C. M. Swenson, N. Brenning, K. D. Baker, and R. Pfaff. Electric and magneticfield measurements inside a high velocity neutral beam undergoing ionization. J. Geophys.Res., 96(A6):9703–9718, June 1991.

• N. Brenning, C. G. Falthammar, G. Haerendel, M.C. Kelley, G. Marklund, R. Pfaff, J. Provi-dakes, H. C. Stenbaek-Nielsen, C. M. Swenson, R. B. Torbert, and E. M. Wescott. Interpreta-tion of the electric fields measured in an ionospheric critical ionization velocity experiment. J.Geophys. Res., 96(A6):9719–9733, June 1991.

• N. Brenning, M. C. Kelley, J. Providakes, H. C. Stenbaek-Nielsen, and C. M. Swenson. Bariumswarm: An ionospheric alternating current generator in CRIT I. J. Geophys. Res., 96(A6):9735–9743, June 1991.

• C. M. Swenson, M.C. Kelley, F. Primdahl, and K. D. Baker. CRIT II electric, magnetic, anddensity measurements within an ionizing neutral stream. Geophys. Res. Lett., 17(12):2337–2340, December 1990.

• N. Brenning, C-G. Falthammar, G. Haerendel, M. C. Kelley, G. Marklund, R. Pfaff, J. Provi-dakes, H.C. Stenbaek-Nielsen, C. M. Swenson, R. Torbert, and E. M. Wescott. Critical ion-ization velocity interaction in the CRIT I rocket experiment. Adv. Space Res., 10(7):63–66,1989.

• N. Brenning, C-G. Falthammar, G. Haerendel, M. C. Kelley, G. Marklund, J. Providakes, H. C.Stenbaek-Nielsen, C. M. Swenson, R. Torbert, and E. M. Wescott. Electrodynamic interactionbetween the CRIT I ionized barium streams and the ambient ionosphere. Adv. Space Res.,10(7):76–70, 1989.

Proceedings

• Geoff Crowley, C. Fish, C. Swenson, R Burt, E. Stromberg, T. Nielson, S. Burr, , A. Barjatya,G. Bust, and M. Larsen. Dynamic ionosphere cubesat experiment (dice). Presented at 25thSmall Satellite Conference, Ut., 8-11 Aug, Session XII, 2011. Presented by G. Crowley, talk,paper.

• P. Anderson, B. Bingham, C. Swenson, and C. Fish. The iss as a launch platform for ohenomenaof interest. Presented at 25th Small Satellite Conference, Ut., 8-11 Aug, Session IV, 2011.Presented by P. Anderson, talk, paper.

• Geoff Crowley, G. Bust, C. Swenson, R Burt, T. Nielson, A. Barjatya, and M. Larsen. Dynamicionosphere cubesat experiment (dice). Presented at 24th Small Satellite Conference, Ut., 9-12Aug, Session III, 2010. Presented by G. Crowley, talk, Paper.

• Erik Stromberg and Charles Swenson (Fac Adv). Dynamic ionosphere cubesat experiment(dice). Presented at 24th Small Satellite Conference, Ut., 9-12 Aug, Session VIII, 2010. Pre-sented by E. Stromberg (Student Scholoarship Competition Honorable Mention).

• C.M. Swenson T.K. Moon. Atmospheric tomography with a rotating mirror sensor. IEEE DSPWorkshop, November 2006.

• Charles Swenson. The role of small satellites in aeronomy. AIAA/USU Small Satellite Confer-ence, (SSC06-x-6), August 2006.

• C. Swenson, J. Ward, C. Carlson, A. Barjatya, and C. Fish. Plasma impedance probe diagnos-tics: Model and data. In 9th Spacecraft Charging Technology Conference, JAXA-SP-0F-001E.Japan Aerospace Exploration Agency, April 2005. Best Poster Award.

• C. Swenson, Don Thompson, and C. Fish. The ISS floating potential measurement unit. In 9thSpacecraft Charging Technology Conference, JAXA-SP-0F-001E. Japan Aerospace ExplorationAgency, April 2005.

• A. Barjatya, C. Swenson, C. Fish, A. Hummel, and D. Hysell. Vehicle charging on a soundingrocket payload. In 9th Spacecraft Charging Technology Conference, JAXA-SP-0F-001E. JapanAerospace Exploration Agency, April 2005.

• Joel Quincieu, Charles Swenson, Rees Fullmer, and Todd Mosher. Structure design for modularplatform and capability on the ususat 2 micro-satellite. AIAA/USU Conference on SmallSatellites, pages SSC04–VII–5, August 2004. Presented by Joel Quincieu, 2nd place $7,500.

• C. M. Swenson, D. Thompson, and C. Fish. Calibrating the floating potential measurementunit. 8th Space. Charg. Tech. Conf., pages Huntville, Alabama, Nov 19 2003. Presented by C.Swenson.

• A Barjatya and C Swenson. Observations of vehicle surface charging in dusty plasma. 8thSpace. Charg. Tech. Conf., pages Huntville, Alabama, Nov 19 2003. Presented by A. Barjatya;Outstanding Student Paper Award.

• C. Swenson, D Thompson, and C Fish. The floating potential measurement unit. AIAA-2003-1081, 2003. 41st Aerospace Sciences Meeting and Exhibit.

• C. Smithro and C. Swenson, number AIAA-2003-1082 in 41st Aerospace Sciences Meeting andExhibit, January A Time Dependant Model of Spacecraft Charging with Application to theInternational Space Station.

• Charles M Swenson, D. Thompson, Todd Schneider, and William Amatucci. The internationalspace station floating potential measurement unit and instrumentation validation in laboratoryplasma. URSI General Assembly, Masstricht, Netherlands, XXVII:HG2–1970, 2002. Presentedby C. Swenson, Invited.

• Todd E. Humphreys, Rees Fullmer, and Charles Swenson. Attitude determination for smallsatellites with modest pointing constraints. AIAA/USU Conference on Small Satellites, pagesSSC02–VI–1, August 2002. Presented by Todd Humphreys, 2nd place $5000.

• Aroh Barjatya, Joel Nelsen, Charles Swenson, and Chad Fish. A low power command andcontrol module for small satellites. AIAA/USU Conference on Small Satellites, pages SSC02–V–4, August 2002. Presented by Barjatya and Fish.

• Charles Swenson and B. Fejer. The ionospheric nanosatellite constelation, exploring spaceweather. AIAA/USU Conference on Small Satellites, pages SSC02–IX–3, August 2002. Pre-sented by Charles Swenson.

• Andrew Peffer, Mark Kumashiro, Lauren Egan, and Charles Swenson. University developedhardware for the space shuttle: Strategies for success. AIAA/USU Conference on Small Satel-lites, pages SSC02–X–2, August 2002. Presented by Andrew Peffer.

• Allan McInnes, Daniel Harps, Jeffrey Lang, and Charles Swenson. A systems engineering toolfor small satelllite design. AIAA/USU Conference on Small Satellites, August 2001. Presentedby Allan McInnes.

• James Gutshall, Anuradha Chandrasekaran, and Charles Swenson. The design and develop-ment of a terminal node controller and GPS/telemetry beacon for space and ground applica-tions. AIAA/USU Conference on Small Satellites, August 2001. Presented by James Gutshall,Honorable Mention ($1000).

• Anuradha Chandrasekaran, James Gutshall, and Charles Swenson. The design of the com-munications and telemetry system used by the ionospheric observation nanosatellite formationmission. AIAA/USU Conference on Small Satellites, August 2001. Presented by AnuradhaChandrasekaran, 2nd Place ($6000).

• John D. Jensen and Charles Swenson. Command and data handling subsystem design fotthe ionospheric observation nanosatellite formation (ION-F). AIAA/USU Conference on SmallSatellites, August 2000. Presented by John Jensen, 3rd Place ($3000).

• Rajat Mathur, Randy Haupt, and Charles Swenson. Student antenna design for a nanosatellite.IEEE Aerospace Conference, Big Sky, MT, 2001. Presented by Randy Haupt.

• Charles M Swenson. Retromodulator communication system. In Proceedings of the 1999 AMOSTechnical Conference, September 1999.

• Charles M Swenson, Clark A Steed, Imelda A. DeLaRue, and Robert Q. Fugate. Low power flc-based retromodulator communications system. In Stephen Mecherle, editor, Free-Space LaserCommunication Technologies IX, volume 2990, pages 296–310. SPIE, February 1997.

• Charles M. Swenson and Gary L. Jensen. Low-power optical tranceiver for low earth orbit. InSPIE Proceedings Vol 2553, page 58, July 1995.

• Gary Jensen and Charles Swenson. A laser downlink for small satellites using an opticallymodulated retroreflector. In Proc. 6th Annual AIAA/USU Conf. Small Sat., 1992.

• C. M. Swenson, M. C. Kelley, N. Brenning, R. Torbert, F. Primdahl, and K. D. Baker. CRITII electric, magnetic, and density observations in an ionizing neutral jet. Adv. Space Res.,12(12):65–90, 1992.

• Nils Brenning, C. M. Swenson, M.C. Kelley, J. Providakes, and R. Torbert. The collectivegyration of a heavy ion cloud in a magnetized plasma. Adv. Space Res., 12(12):91–100, 1992.

• N. Brenning, C-G. Falthammar, G. Haerendel, M. C. Kelley, G. Marklund, R. Pfaff, J. Provi-dakes, H.C. Stenbaek-Nielsen, C. M. Swenson, R. Torbert, and E. M. Wescott. Critical ion-ization velocity interaction in the CRIT I rocket experiment. Adv. Space Res., 10(7):63–66,1989.

• N. Brenning, C-G. Falthammar, G. Haerendel, M. C. Kelley, G. Marklund, J. Providakes, H. C.Stenbaek-Nielsen, C. M. Swenson, R. Torbert, and E. M. Wescott. Electrodynamic interactionbetween the CRIT I ionized barium streams and the ambient ionosphere. Adv. Space Res.,10(7):76–70, 1989.

Reports

• Charles M. Swenson and Clark Steed. Balloon launch retromodulator experiment. Technicalreport, AFOSR, Air Force Phillips Laboratory, October 1996.

• Charles M. Swenson and Stephen Clarke. Reflected laser communication systems. Technicalreport, AFOSR, Air Force Phillips Laboratory, 1994.

• Charles M Swenson. Nasa final contract report (october 2000 to october 2003) ionosphericnanosatellite formation (ion-f) science. Technical report, Utah State University, 2003.

• Charles M Swenson. Final contract report to afrl university nanosatellite program ion-f con-stellation ususat. Technical report, Utah State University, 2003.

• Charls M Swenson. Floating potential measurement unit systems acceptance review groundstation and flight units 2, 3, 4. Technical report, Space Dynamics Laboratory, 2003.

In Progress/Preperation

• S. B. Henderson, C. M. Swenson, A. B. Christensen, and L. J. Paxton. Fuv imager gobalquiet-nighttime ea crest empirical model. J. Geophys. Res., 2006. In Preperation.

• P.L. Patterson, C. M. Swenson, D. J. Baker, J. B. Allen, and T. Hauser. Atomic oxygenobservations during the CODA I and II missions. Geophys. Res. Lett., 2005. To Be Submitted,2006.

Invited Talks of Charles M. Swenson

• Charles Swenson, Jan Sojka, Chad Fish, Miguel Larsen, Bryan Bingham, Quinn Young, andStephen Whitmore. The high-latitude dynamic e-field (hidef) explorer, a proposed network of90 cubesats. QB-50 Workshop, Brussels, November 2009. Presented by Swenson, Invited Talk.

• C. M. Swenson. Cubesat communications review and concepts. CEDAR, CubeSats Constella-tions and Communications, July 2009. Invited talk.

• C. Swenson. In-situ langmuir and impedance probes. CEDAR, Space Science InstrumentationWorkshop, 2008. Review, Invited.

• D Hysell, M Larsen, C Swenson, A Barjatya, and T Wheeler. Shear flow effects at the onsetof equatorial spread f. EOS Trans. AGU, Abstract SA42A-06 INVITED(87(36)):Jt. Assem.Suppl., 2006. Presented by D Hysell, oral.

• C. M. Swenson and P. Patterson. The role of small satellites in aeronomy. EOS Trans. AGU,Abstract SA42A-05(86(52)):Fall Meet. Suppl., 2005. Presented by C. Swenson, talk.

• C. M. Swenson, W. Amatucci, and C. Fish D. Thompson and. The floating potential measure-ment unit (fpmu) calibration and laboratory plasma validation. URSI National Conference,Boulder, CO, 2004. Presented by C. Swenson, Invited.

• Sid Henderson and Charles Swenson. Disturbance dynamo affects on the ea as observed by guvi.2004 CEDAR Workshop, Eldorado Hotel, Santa Fe, New Mexico, 2004. Invited, Presented bySid Henderson.

• P. R. Straus, L. J. Paxton, G. Crowley, S. Henderson, H. Kil, D. Morrison, C. Swenson, andA. B. Christensen. Guvi nighttime observations of the equatorial and mid-latitude ionosphere.EGS-AGU-EUG Joint Assembly, EAE03-A-02309, April 2003. Invited, Presnted by P. Straus.

• L Paxton, A Christensen, S Avery, J Craven, G Crowley, R Meier, C Meng, D Srickland,C Swenson, and R Walterscheid. The sun-earth connection as viewed from guvi on timed(solicited). EGS-AGU-EUG Joint Assembly, EAE03-A-07340, April 2003. Invited Presentedby L Paxton.

• C. M. Swenson, J. D. Ward, C. M. Furse, and C. Fish. Recent developments of the plasmaimpedance probe technique at utah state university. URSI National Conference, Boulder, CO,2002. Presented by J. Ward, Invited.

• C . Swenson, C. Furse, C. Fish, and P. Nikitin. Impedance probes for space plasma diagnostics.URSI National Conference, Boulder, CO, 2000. Presented by C. Swenson, Invited.

• Charles M Swenson. Retromodulator communications systems. Air Force Manui OpticalStation Technical Confrence, August 1999.

• C. M. Swenson, M. C. Kelley, F. Primdahl, K. D. Baker, N. Brenning, and R. B. Torbert.Electric, magnetic, and density observations in an ionizing neutral jet. XXVIII COSPAR, July1990. Presented by C.M. Swenson.

• N. Brenning, J. Providakes, M. C. Kelley, and C. M. Swenson. The collective gyration of aheavy ion cloud in a magnetized plasma. XXVIII COSPAR, July 1990. Presented by N.Brenning.

Contributed Talks of Charles M. Swenson

• C.M. Swenson, C S Fish, G Crowley, G D Earle, B J Anderson, L P Dyrud, H C Carlson, P JErickson, B G Fejer, C J Mertens, L Scherliess, J L Semeter, and A B Christensen. The stormtime energy and dynamics explorers. EOS Trans. AGU, Abstract SA23C-02(Presented at 2011Fall Meeting, AGU, San Francisco, Calif. 5-9 Dec.), 2011. Presented by C.Swenson, talk.

• E. M. Stromberg, C. Swenson, and C. S. Fish. Auroral spatial structures probe sounding rocketmission. EOS Trans. AGU, Abstract SA11A-1566(Presented at 2011 Fall Meeting, AGU, SanFrancisco, Calif. 5-9 Dec.), 2011. Presented by E. Stromberg, poster.

• p. Suresh, C. Swenson, C. J. Mertens, and A. B. Christensen. Global thermospheric temperatureresponse to geomagnetic storms. EOS Trans. AGU, Abstract SA11A-1566(Presented at 2011Fall Meeting, AGU, San Francisco, Calif. 5-9 Dec.), 2011. Presented by P. Surresh, poster.

• C. Swenson, C. Fish andj j Sojka, E. M Stromberg, B. Lloyd, and T. Neilsen. The iss as alaunch platform for phenomena of interest. EOS Trans. AGU, Abstract SA11A-1566(Presentedat 2010 Fall Meeting, AGU, San Francisco, Calif. 13-17 Dec.), 2010. Presented by C. Swenson,poster.

• P Suresh, C. Swenson, and A.B. Christensen. A statistical nighttime analysis of the equatorialionization anomaly. EOS Trans. AGU, Abstract SA51B-1638(Presented at 2010 Fall Meeting,AGU, San Francisco, Calif. 13-17 Dec.), 2010. Presented by P. Suresh, poster.

• S Burr, C. Swenson, C. Fish, G. Crowley, D. Hui, P. Suresh, and T. Neilsen. Expectedperformance of the plasma diagnostic instrumentation on dice. EOS Trans. AGU, AbstractSA43B-1769(Presented at 2010 Fall Meeting, AGU, San Francisco, Calif. 13-17 Dec.), 2010.Presented by S. Burr, poster.

• S Burr, D Hui, J Pratt, and C Swenson. Expected performance of double probe instrumenta-tion on cubesats. EOS Trans. AGU, Abstract SM33C-1580(90(52)):Fall Meet. Suppl., 2009.Presented by Debrup Hui, poster.

• P. Suresh and C. M. Swenson. Implications of contamination and surface area ratios for langmuirprobe diagnostics on cubesats. EOS Trans. AGU, Abstract SM33C-1573(90(52)):Fall Meet.Suppl., 2009. Presented by Suresh, poster.

• E. M. Stromberg, S. Burr, D. Hui, and C. M. Swenson. Electric field wire boom system andinstrument for cubesats. EOS Trans. AGU, Abstract SM33C-1578(90(52)):Fall Meet. Suppl.,2009. Presented by Stromberg, poster.

• D Allen, C S Fish, F J Crary, P Leung, R Frampton, C Swenson, D C Thompson, and L Peltz.Versatile langmuir probe for outer planet missions. EOS Trans. AGU, Abstract SM23B-1622(90(52)):Fall Meet. Suppl., 2009. Presented by , poster.

• C. M. Swenson, M. F. Larsen, J. J. Sojka, and C. S. Fish. Cubesat constellations for mea-surements of high latitude energy input. EOS Trans. AGU, Abstract SM33C-1584(90(52)):FallMeet. Suppl., 2009. Presented by Swenson, poster.

• G. Crowley, C. S. Fish, G. S. Bust, C. M. Swenson, A. Barjatya, and M. F. Larsen. Dynamicionosphere cubesat experiment (dice). EOS Trans. AGU, Abstract SM42A-06(90(52)):FallMeet. Suppl., 2009. Presented by Crowley, talk.

• K. Cannon B, C. S. Fish, M. F. Larsen, and C. M. Swenson. Development of a falling sphere tech-nique for e-region wind measurements. EOS Trans. AGU, Abstract SA53A-1253(90(52)):FallMeet. Suppl., 2009. Presented by Cannon, poster.

• P. Suresh and C. Swenson. Estimation of langmuir probe currents in the event of surfacepotential variation. CEDAR, Poster Session, July 2009. Won third place award.

• E. Stromberg, K. Bradford, S. Grover, M. Anderson S. Burr, B. Sharp, and C. Swenson. Wireboom deployment system for a cubesat. CEDAR, Poster Session, July 2009. Presented by E.Stromberg , talk.

• Charles Swenson, Jan Sojka, Chad Fish, Miguel Larsen, Bryan Bingham, Quinn Young, andStephen Whitmore. Satellite constellations for measurements of high latitude energy input.Directions in Ionosphere-Thermosphere-Mesosphere Research, Aerospace Corporation, February2009. Presented by Swenson, Talk.

• A. Barjatya, J. St-Maurice, and C.M. Swenson. Intriguing observations of elevated temperaturesaround double-layer sporadic-E. EOS Trans. AGU, Abstract SA33A-1629(89(53)):Fall Meet.Suppl., 2008. Presented by A. Barjatya, poster.

• S. Burr, T K Moon, and C. M. Swenson. Implications of tomographic reconstruction algorithmson instrumentation for observing the night time ionospheric air glow. EOS Trans. AGU,Abstract SM11B-1635(89(53)):Fall Meet. Suppl., 2008. Presented by S. Burr, poster.

• G D Earle, P Bhaneja, P A Roddy, R L Bishop, T W Bullett, C M Swenson, A Barjatya,G Crowley, K Groves, G Bust, R Redmon, M Ruohoneimi, and S L Vadas. Results froma comprehensive rocket investigation of mid-latitude spread f. EOS Trans. AGU, AbstractSA52A-04(89(53)):Fall Meet. Suppl., 2008. Presented by G D Earl, talk.

• C. M. Swenson, S. Burr, J. Shankar, L. Paxton, and A. Christensen. Observations of theday to night transition of equatorial ionization anomaly. EOS Trans. AGU, Abstract SA14A-07(89(53)):Fall Meet. Suppl., 2008. Presented by Swenson, talk.

• A Barjatya, C Swenson, D Thompson, and K Wright. Comparison of iss-fpmu data with iriand usu-gaim models. 37th COSPAR Scientific Assembly, 2008.

• E. A. Spencer, S Patra, T Andriyas, C. M. Swenson, and J. D. Ward. Plasma impedance probeanalysis with a finite difference time domain simulation. Pulsed Power Conference, 16th IEEEInternational, 2:1595–1598, October 2007.

• E. A. Spencer, S Sridharan, T Andriyas, C. M. Swenson, and J. D. Ward. Plasma impedanceprobe analysis with a finite difference time domain simulation. PPPS, 2:1595–1598, June 2007.

• K. Wright, C. Swenson, D. Thompson, A. Barjatya, S. Koontz, T. Schneider, J. Vaughn, J. Mi-now, P. Craven, and V. Coffey. Initial results from the floating potential measurement unitaboard the international space station. Proc. 10th Spacecraft Charging Technology Conf., June2007. Biarritz-France.

• J Shankar, S Burr, C Swenson, A Christensen, L Paxton, and T Moon. Guvi limb observationsof the equatorial ionization anomaly. EOS Trans. AGU, SA33B-1326(88(52)):Fall Meet. Suppl.,2007. Presented by S Burr, poster.

• A Barjatya, C M Swenson, and D L Hysell. Derivation of temperature and density fromlangmuir probe observations with a small surface-to-probe area ratio. EOS Trans. AGU,SA33B-1321(88(52)):Fall Meet. Suppl., 2007. Presented by A Barjatya, poster.

• S Patra, EA Spencer, T Andriyas, CM Swenson, and JD Ward. Determination of absoluteplasma electron density and electron neutral collision frequency from plasma impedance probemeasurements. EOS Trans. AGU, Abstract SA41A-0262(88(52)):Fall Meet. Suppl., 2007.Presented by E Spencer, poster.

• J Shankar, C M Swenson, G Crowley, T K Moon, L J Paxton L J, and A B Christensen.Comparison of guvi 135.6nm oi radiance observations with outputs from global atmosphericmodels. EOS Trans. AGU, Abstract SA13B-0276(87(52)):Fall Meet. Suppl., 2006. Presentedby J Shankar, poster.

• S Sridharan, E Spencer, J Ward, and C Swenson. Impedance probe analysis of ionosphericplasma properties using a finite difference time domain model. EOS Trans. AGU, AbstractSM13A-0350(87(52)):Fall Meet. Suppl., 2006. Presented by E Spencer, Poster.

• C M Swenson, E Syrstead, and J S Dyer. The development of a neutral particle detector forobservations of the thermosphere. EOS Trans. AGU, Abstract SM21D-04(87(52)):Fall Meet.Suppl., 2006. Presented by C Swenson, Oral.

• E Syrstad, C M Swenson, and J S Dyer. Compact hadamard-transform time-of-flight massspectrometer. EOS Trans. AGU, Abstract SM13A-0339(87(52)):Fall Meet. Suppl., 2006.Presented by E Syrstad, Poster.

• J D Ward, C Swenson, and A Barjatya. The current distribution of a dipole antenna inmagnetized plasma and its effect on rf plasma probe diagnostic techniques. EOS Trans. AGU,Abstract SA53B-1381(87(52)):Fall Meet. Suppl., 2006. Presented by J Ward, Poster.

• T K Moon and C M Swenson. Atmospheric tomography using a rotating field of view sensor.EOS Trans. AGU, Abstract SM13A-0353(87(52)):Fall Meet. Suppl., 2006. Presented by TMoon, Poster.

• A Barjatya and C M Swenson. Advances in the design and performance of langmuir probesand plasma impedance probes built at utah state university. EOS Trans. AGU, AbstractSM13A-0351(87(52)):Fall Meet. Suppl., 2006. Presented by A Barjatya, Poster.

• P A Roddy, G D Earl, C M Swenson, C G Carlson, and T W Bullett. The composition andhorizontal homogeneity of e region plasma layers. EOS Trans. AGU, Abstract AN: SA43C-07(87(36)):Jt. Assem. Suppl., 2006. Presented by P Roddy, Poster.

• A. Barjatya, C. Swenson, and D. Hysell. Observations of non-maxwellian plasma in the bottom-type scattering layer precursor to equatorial spread f. EOS Trans. AGU, Abstract SA23A-0304(86(52)):Fall Meet. Suppl., 2005. Presented by A Barjatya, poster.

• P. Patterson and C. M. Swenson. In-situ measurements of atomic oxygen in the malt re-gion: The atox resonance fluorescence/absorption sensor. EOS Trans. AGU, Abstract SA53A-1164(86(52)):Fall Meet. Suppl., 2005. Presented by C. Swenson, Poster.

• J Gregory, C. M. Swenson, S. Humphries, C. Fish, C. Carlson, and A. Barjatya. Electrondensity observations during kwajalein and e-winds. EOS Trans. AGU, Abstract SA23A-0306(86(52)):Fall Meet. Suppl., 2005. Presented by J. Gregory, Poster.

• J Salmon, C. M. Swenson, and T. Moon. An euv photometer for tomographic observationsof the ionosphere. EOS Trans. AGU, Abstract SA11A-0218(86(52)):Fall Meet. Suppl., 2005.Presented by J. Salmon, Poster.

• Todd Moon Charles Swenson Robert Meier Larry Paxton Andy Christensen Henry Coakley,Jayaprabha Shankar. Day side observations of the equatorial anomaly. EOS Trans. AGU,Abstract SA43A-1103(86(52)):Fall Meet. Suppl., 2005. Presented by H. Coakley, Poster.

• D. Hysell, M. Larsen, C. Swenson, and T. Wheeler. Modeling shear flow and postsunset stabilityin the equatorial f region ionosphere. EOS Trans. AGU, Abstract SA51B-1131(86(52)):FallMeet. Suppl., 2005. Presented by D. Hysell, Poster.

• S. L. England, T. J. Immel, E. Sagawa, S. Henderson, M. E. Hagan, S. B. Mende, H. U. Frey,C. Swenson, and L. Paxton. Control of the equatorial ionospheric morphology by atmospherictides: TIMED GUVI and IMAGE FUV observations. EOS Trans. AGU, Abstract SA34A-06(86(52)):Fall Meet. Suppl., 2005. Presented by S. L. England, Poster.

• Chad G. Carlson, Charles M. Swenson, Jeff D. Ward, Chad S. Fish, and Kenneth J. Vanhille.Recent advances in the plasma impedance probe measurement technique. URSI NationalConference, Boulder, CO, 2004. Presented by Chad Carlson.

• Chad G. Carlson, Charles M. Swenson, Jeff D. Ward, Chad S. Fish, and Kenneth J. Vanhille.Recent advances in the plasma impedance probe measurement technique. URSI NationalConference, Boulder, CO, 2004. Presented by Chad Carlson.

• J Ward, C Swenson, C Fish, and C Carlson. Calibration of the plasma impedance probe forthe equis ii sounding rocket campaign. EOS Trans. AGU, Abstract SA31A-1118(85(47)):FallMeet. Suppl., 2004. Presented by J. Ward.

• P. A. Roddy, G. D. Earl, R. L. Bishop, C. M. Swenson, M. F. Larsen, and C. G. Carlson.Numerical modeling of the dynamics and composition of a nighttime intermediate layer. EOSTrans. AGU, Abstract SA21C-0365(85(47)):Fall Meet. Suppl., 2004. Presented by P roddy.

• C Swenson, J Ward, C Carlson, and G Earle. Observations of density and electron neutralcollision frequency in the nighttime e-region during the e-winds campaign. EOS Trans. AGU,Abstract SA21B-0360(85(47)):Fall Meet. Suppl., 2004. Presented by C. Swenson.

• P Patterson, C Swenson, and J Gregory. In-situ measurements of atomic oxygen in the mltregion: The atox resonance fluorescence/absorption sensor. EOS Trans. AGU, Abstract SA31A-1109(85(47)):Fall Meet. Suppl., 2004. Presented by.

• A Barjatya, C Swenson, C Fish, A Hummel, and D Hysell. Vehicle charging on the 29.036 and29.037 rockets of the EQUIS II campaign. EOS Trans. AGU, Abstract SA31A-1108(85(47)):FallMeet. Suppl., 2004. Presented by.

• A Barjatya and C Swenson. Observations of vehicle charging in dusty plasma. EOS Trans.AGU, Abstract SA12B-1107(84(46)):Fall Meet. Suppl., Nov 19 2003. Presented by A. Barjatya;Outstanding Student Paper Award.

• Henderson S., C Swenson, Straus P., Kil H., Christensen A., Paxton L., Morrision D., CrowleyG., Meier R., Craven J., Strickland D., Meng C., Walterscheid R., and Avery S. Automatic

detection of equatorial plasma bubbles in guvi data. EOS Trans. AGU, Abstract SA41B-0436(84(46)):Fall Meet. Suppl., Nov 19 2003. Presented by S. Henderson, Outstanding StudentPaper Award.

• J Ward, C Swenson, and C Carlson. The use of plasma fluid finite difference time domain(pf-fdtd) models in the analysis of the e-winds plasma impedance probe observations. EOSTrans. AGU, Abstract SA12B-1093(84(46)):Fall Meet. Suppl., Nov 19 2003. Presented by J.Ward.

• C G Carlson, C M Swenson, and C Fish. Next generation plasma impedance probe instrumen-tation technique. EOS Trans. AGU, Abstract SA12B-1106(84(46)):Fall Meet. Suppl., Nov 192003. Presented by C. Carlson.

• P Patterson, C Swenson, K Melville, A B Christensen, and J Clemmons. Atomic oxygendepletion observations in a diffuse aurora. EOS Trans. AGU, Abstract SA21A-02(84(46)):FallMeet. Suppl., Nov 19 2003. Presented by P. Patterson.

• P A Roddy, G D Earle, M F Larsen, R L Bishop, C Swenson, C G Carlson, and T W Bullett.A sequential sounding rocket flight through nighttime midlatitude plasma layers. EOS Trans.AGU, Abstract SA21B-0070(84(46)):Fall Meet. Suppl., Nov 19 2003. Presented by P Roddy.

• J D Craven, Strickland D., Meier R., Crowley G., Christensen A., Paxton L., Morrison D., AveryS., Meng C., Straus P., Swenson C, and Walterscheid R. Search for thermospheric compositionchanges in the morning sector near local midnight in association with intense substorm activity.EOS Trans. AGU, Abstract SA32B-07(84(46)):Fall Meet. Suppl., Nov 19 2003. Presented byJ Craven.

• P Patterson, C Swenson, K Melville, J Stegman, A Christensen, and J Clemmons. Atomicoxygen depletion measurements in a diffuse aurora. EOS, page F 1092, Nov 19 2002.

• J Ward, C M Swenson, and C Furse. Finite difference time domain simulations of an impedanceprobe. EOS, page F1094, Nov 19 2002.

• S Henderson, P R Straus, C M Swenson, H Kil, A Christensen, L J Paxton, G Crowley, R RMeier, D Morrison, J D Craven, D Strickland, C Meng, R L Walterscheid, and S Avery. Aquantitative image processing approach to guvi observations of the equatorial arcs. EOS, pageF1104, Nov 19 2002.

• C M Swenson, D Thompson, and C Fish. Potential ionospheric studies from the internationalspace station using the floating potential measurement unit. EOS, page F1094, Nov 19 2002.Presented by C. Swenson.

• H Kil, L J Paxton, S Su, B C Wolven, Y Zhang, D Morrison, C Meng, A B Christensen, C MSwenson, G Crowley, R R Meier, P R Straus, D J Strickland, S K Avery, J D Craven, andR L Walterscheid. The morphology of equatorial plasma density depletions observed by GUVI.EOS, page Nov 19, 2002.

• B Wolven, L Paxton, D Morrison, Y Zhang, H Kil, C Meng, A Christensen, P R Straus,R Walterscheid, J D Craven, D J Strickland, R R Meier, G Crowley, S K Avery, and C MSwenson. Thermospheric and ionospheric response to the solar flares of april 2002 as observedby the timed global ultraviolet imager (GUVI). EOS, page F1121, Nov 19 2002.

• M B Weiss, L J Paxton, R J Barnes, J J Eichert, W C Wood, D Morrison, A B Christensen,D J Strickland, J D Craven, R R Meier, G Crowley, S K Avery, C I Meng, P R Straus,C M Swenson, R L Walterscheid, and B C Wolven. Exploiting web-based systems to provideinteractive interpretation, access and display of far ultraviolet data from the global ultravioletimager (GUVI) on timed. EOS, page F 1116, Nov 19 2002.

• A B Christensen, D J Strickland, L J Paxton, D Morrison, G Crowley, R R Meier, J D Craven,C I Meng, C M Swenson, R L Walterscheid, and S K Avery. Thermospheric composition: GUVIobservations of o/n2. EOS, page F1102, Nov 19 2002.

• J D Craven, D J Strickland, R R Meier, G Crowley, A B Christensen, L J Paxton, D Morrison,S K Avery, C Meng, P R Straus, C M Swenson, and R L Walterscheid. Search for thermosphericcomposition changes in the morning sector near local midnight in association with substormactivity. EOS, page F1096, Nov 19 2002.

• Y Zhang, L Paxton, D Morrison, B Wolven, H Kil, C Meng, A Christensen, P Straus, R Walter-scheid, G Crowley, R Meier, D Strickland, J Craven, S Avery, and C Swenson. Dayside aurorasduring storms of april 2002: Timed/GUVI observations. EOS, page F1119, Nov 19 2002.

• L J Paxton, G Crowley, Y Zhang, B Wolven, D Morrison, H Kil, R DeMajistre, R Barnes,M Weiss, W Wood, J Eichert, J Kozyra, A Christensen, S Avery, J Craven, R Meier, C Meng,P Straus, D Strickland, C Swenson, and R Walterscheid. GUVI/timed observations during theapril 14-24, 2002 storm. EOS, page F1114, Nov 19 2002.

• D Morrison, R Barnes, L Paxton, M Weiss, B Wolven, A Christensen, J Craven, G Crowley,S Avery, R Meier, C Meng, P Strauss, D Strickland, C Swenson, and R Walterscheid. Datavisualization tools and techniques developed for the timed/GUVI instrument. EOS, page F1104,Nov 19 2002.

• G Crowley, L J Paxton, A B Christensen, D Morrison, D J Strickland, J D Craven, R Meier,P Straus, R Walterscheid, C Meng, C Swenson, S Avery, and C Hackert. Seasonal variation ofthermospheric composition as measured by timed/GUVI. EOS, page F1102, Nov 19 2002.

• A B Christensen, D Strickland, L Paxton, D Morrison, G Crowley, R Meier, J Craven, C Meng,C Swenson, R Walterscheid, S Avery, and P Straus. Global ultraviolet imager (GUVI): on-orbitperformance and initial results. EOS, page F 1096, Nov 19 2002.

• A. Christensen, L. Paxton, C. Meng, R. Walterscheid, D Strickland J Craven, R. Meier, S Avery,G. Crowley, and C. Swenson. Scientific objectives and early results from the global ultravioletimager (GUVI) on the timed spacecraft. EOS Trans. AGU, 89(19):SA51A–08, 2002. Presentedby A. Christensen.

• Charles M. Swenson, A. Christensen, R. Walterscheid, L. Paxton, H. Kil, C. Meng, J Craven,R. Meier, D Strickland, and G. Crowley. GUVI observations of night time ionospheric mor-phology. EOS Trans. AGU, 89(19):SA52A–07, 2002. Presented by C. Swenson.

• Jeff Ward, Cynthia Furse, and Charles Swenson. FDTD analysis of microstrip antennas im-mersed in anisotropic space plasma. IEEE Antennas and Propagation Symposium, Boston, MA,July 2001.

• Cynthia Furse, Joseph Olakangil, and Charles Swenson. Fdtd analysis of a short dipole im-mersed in ionospheric plasma. IEEE Antennas and Propagation Symposium, Salt Lake City,UT, 2000. Presented by C Furse.

• Charles M Swenson. Impedance magnitude observations of an antenna immersed in the lowerionosphere. URSI, August 1999. Presented by C. Swenson.

• C. Fish, C. Furse, and C. Swenson. Development of new electronics for antenna impedance mea-surements in the ionosphere. IEEE AP-S International Symposium and USNC/URSI NationalRadio Science Meeting, July 1999. Prestented by C. Fish.

• Pavel V. Nikitin and C. M. Swenson. Impedance of a dipole antenna in ionospheric plasma.IEEE International Conference on Plasma Science, March 1998.

• Pavel Nikitin and Charles Swenson. Impedance of a dipole antenna in the ionosphere theoryand measurements. EOS Trans. AGU, 1997. Poster.

• Charles M Swenson, Clark A Steed, Imelda A. DeLaRue, and Robert Q. Fugate. Low powerFLC-based retromodulator communications system. SPIE Free-Space Laser CommunicationTechnologies IX, 2990:296–310, February 1997. Presented by C. M. Swenson.

• R. H. Holzworth, M. C. Kelley, C. Kletzing, F. Primdahl, J. L. Jorgensen, S. D. Baker, B. Bar-num, E. E. Dors, and C. M. Swenson. New ionospheric measurements over thunderstorms.EOS Trans. AGU, 76(46):F1155, November 1995. Presented by R. H. Holzworth.

• T. C. Genoni, L. A. Wright, C. M. Swenson, and D. L. Cooke. Simulation of barium criticalionization velocity releases. EOS Trans. AGU, 76(46):F505, November 1995. Presented by T.C. Genoni.

• N. Brenning, O. Bolin, F. Primdahl, and C. M. Swenson. The CRIT II experiment – implica-tions for the theory on alfven’s CIV effect. EOS Trans. AGU, 76(46):F502, November 1995.Presented by N. Brenning.

• Charles M. Swenson and Gary L. Jensen. Low-power optical transceiver for low earth orbit.SPIE 1995 International Symposium on Optical Science, Engineering and Instrumentation, July1995. Presented by Gary L. Jensen.

• C. M. Swenson, O. Bolin, and N. Brenning. New results for the CRIT II CIV experiment. XXIGeneral Assembly of the IUGG, July 1995. Presented by C. M. Swenson.

• C. M. Swenson and M. D. Jensen. Small rockets for measurements in the lower ionosphere.Utah Academy of Science Arts and Letters, May 1995. Presented by C. M. Swenson.

• C. M. Swenson, K. D. Baker, G. A. Gebert, R. Harris, J. C. Ulwick, M. D. Jensen, W. G.Sanderson, R. D. Nelsen, L. Abeyta, and S. Prestwitch. Utah state university small rocketprogram. High Power RF Ionospheric Modification Workshop, National Science Foundation,April 1995. Presented by C. M. Swenson.

• C. M. Swenson, K. D. Baker, and M. D. Jensen. The plasma frequency probe technique.Chapman Conference, Measurement Techniques for Space Plasmas, April 1995. Presented byC. M. Swenson.

• Charles M. Swenson. Small rocket techniques for D-region lightning studies. IGPP Workshopon Lightning, Albuquerque NM, November 1994. Presented by C. M. Swenson.

• O. Bolin, C. M. Swenson, N. Brenning, and F. Primdahl. Electric and magnetic field measure-ments from the CRIT II rocket. 1994 International Conference on Plasma Physics, Iguazu,Brazil, October 1994. Presented by O. Bolin.

• C. M. Swenson and Gary Jensen. Refelected laser communications for small low-earth orbitingsatellites i. Utah Academy of Sciences, Arts, and Letters, 1994. Presented by C. M. Swenson.

• Gary Jensen and C. M. Swenson. Earth-satellite-earth laser downlink: Proof of concept. UtahAcademy of Sciences, Arts, and Letters, 1994. Presented by G. Jensen.

• Charles M. Swenson, K. D. Baker, E. Pound, and M. D. Jensen. Plasma diagnostics by antennaimpedance measurements. Workshop on Advanced Technologies for Planatary Instruments,April 1993. Presented by C. M. Swenson.

• Charles M. Swenson, M. C. Kelley, and C. Seyler. Continuing analysis of the CRIT II vectorelectric field measurements. EOS Trans. AGU, 73(43):411, December 1992. Presented by C.M. Swenson.

• Gary Jensen and Charles Swenson. A laser downlink for small satellites using an opticallymodulated retroreflector. Proc. 6th Annual AIAA/USU Conf. Small Sat., September 1992.Presented by G. Jensen.

• C. M. Swenson, M. C. Kelley, F. Primdahl, K. D. Baker, N. Brenning, and R. B. Torbert.Electric, magnetic, and density observations in an ionizing neutral jet. EOS Trans. AGU,70(43):1278, October 1989. Presented by C.M. Swenson.

• N. Brenning, C-G. Falthammar, G. Haerendel, M. C. Kelley, G. Marklund, R. Pfaff, J. Provi-dakes, H. C. Stenbaek-Nielsen, C. M. Swenson, R. Torbert, and E. M. Wescott. Criticalionization velocity interaction in the CRIT I rocket experiment. XXVII COSPAR, July 1988.Presented by N. Brenning.

• N. Brenning, C-G. Falthammar, G. Haerendel, M. C. Kelley, G. Marklund, J. Providakes, H. C.Stenbaek-Nielsen, C. M. Swenson, R. Torbert, and E. M. Wescott. Electrodynamic interactionbetween the CRIT I ionized barium streams and the ambient ionosphere. XXVII COSPAR,July 1988. Presented by N. Brenning.

• C. M. Swenson, M. C. Kelley, J. Providakes, R. Pfaff, R. B. Torbert, and N. Brenning. Lowfrequency electric and magnetic fields in the CRIT I critical velocity experiment. EOS Trans.AGU, 68(16):396, April 1987. Presented by C. M. Swenson.

• R. F. Pfaff, M. C. Kelley, J. Providakes, C. Swenson, R. Torbert, and G. Haerendel. Plasmawaves observed during the ionospheric critical velocity experiment, may 13, 1986. EOS Trans.AGU, 68(16):396, April 1987. Presented by R.F. Pfaff.

• M. C. Kelley, C. M. Swenson, J. Providakes, R. B. Torbert, and R. Pfaff. Ion cyclotron wavesassociated with the CRIT I barium release and their possible role in ion accleration. EOSTrans. AGU, 68(16):396, April 1987. Presented by J. Providakes.