Faculty Profile

John E Prussing

Aerospace Engineering
John E Prussing
John E Prussing
Professor Emeritus
319 A Talbot Laboratory MC 236
104 S. Wright
Urbana Illinois 61801
(217) 333-8231

Primary Research Area

  • Astrodynamics

Education

  • Sc.D. Instrumentation, Massachusetts Institute of Technology (MIT) 1967
  • S.M. (Honors Course) Aeronautics and Astronautics, Massachusetts Institute of Technology (MIT) 1963
  • S.B. (Honors Course) Aeronautics and Astronautics, Massachusetts Institute of Technology (MIT) 1963 (Class of 1962)

Academic Positions

  • Professor Emeritus, Aerospace Engineering 2007￿present University of Illinois
  • Professor, Aerospace Engineering 2003￿2007 University of Illinois
  • Professor, Aeronautical & Astronautical Engineering, 1981￿2003 University of Illinois
  • Assistant Dean, College of Engineering (50%) 1976￿77 University of Illinois
  • Associate Professor, Aeronautical & Astronautical Engineering, University of Illinois at Urbana-Champaign 1972-81
  • Assistant Professor, Aeronautical & Astronautical Engineering, University of Illinois at Urbana-Champaign 1969-72
  • Lecturer, University of California Extension 1969
  • Assistant Research Engineer and Lecturer, University of California at San Diego, 1967￿69

For more information

Research Interests

  • Optimal Control Theory Applications
  • Orbital Mechanics
  • Optimal Spacecraft Trajectories

Research Areas

Books Authored or Co-Authored (Original Editions)

  • Orbital Mechanics by John E. Prussing and Bruce A. Conway, Oxford University Press, 1993 (Second Edition 2013)

Books Edited or Co-Edited (Original Editions)

  • Co-editor, Astrodynamics 1989, Vol. 71, Advances in the Astronautical Sciences, American Astronautical Society (AAS), Univelt Inc., San Diego, CA

Chapters in Books

  • Chapter 2 "Primer Vector Theory & Applications", Spacecraft Trajectory Optimization (B.A. Conway Editor), Cambridge University Press, 2012
  • "Kepler's Laws of Planetary Motion," Encyclopedia of Physics, 3rd Edition, Van Nostrand Reinhold Co., 1985, pp. 628￿632.

Monographs

  • The Relationship Between Directional Heading of an Automobile and Steering Wheel Deflection, Undergraduate Mathematics and its Applications Project (UMAP), Unit 506, Consortium for Mathematics and Its Applications, Lexington, Mass. ; also appears in the UMAP Journal, Vol. 7, No. 1, 1986, pp. 31-44 and UMAP Modules 1986: Tools for Teaching, pp. 43￿58
  • Optimal Orbital Maneuvers, AIAA Professional Studies Series, Washington, DC 1989.

Selected Articles in Journals

  • Prussing, J.E., and Sandrik, S.L., ￿Second-Order Necessary Conditions and Sufficient Conditions Applied to Continuous-Thrust Trajectories￿, Journal of Guidance, Control, and Dynamics, Vol 28, No. 4, Jul￿Aug 2005, pp. 812￿816.
  • ￿Optimal Two- and Three-Impulse Fixed-Time Rendezvous in the Vicinity of a Circular Orbit￿, Journal of Spacecraft and Rockets, Vol. 40, No. 6, Nov￿Dec 2003, pp. 952￿￿959. [Reprinted from AIAA Journal, Vol. 8, No. 7, 1970 as part of an Historical Celebration.]
  • Coverstone, V. L., and Prussing, J.E., ￿Technique for Escape from Geosynchronous Transfer Orbit Using a Solar Sail￿, Journal of Guidance, Control, and Dynamics, Vol. 26, No. 4, pp. 628￿634, Jul￿Aug 2003.
  • Prussing, J.E., ￿A Class of Optimal Two-Impulse Rendezvous Using Multiple-Revolution Lambert Solutions￿,The Journal of the Astronautical Sciences., Vol. 48, No. 2 and 3, Apr￿Sep 2000, pp. 131￿148.
  • Jo, J-W., and Prussing J.E. ￿A Procedure for Applying Second-Order Conditions in Optimal Control Problems￿, Journal of Guidance, Control, and Dynamics, Vol. 23, No. 2, Mar￿Apr 2000, pp. 241￿250.
  • Prussing, J.E., and Coverstone-Carroll, V., "Constant Radial Thrust Acceleration Redux," Journal of Guidance, Control, and Dynamics, Vol. 21, No. 3, May￿Jun 1998, pp. 516￿518.
  • Wenzel, R.S., and Prussing, J. E., "A Preliminary Study of Optimal Thrust-Limited, Path-Constrained Maneuvers", Journal of Guidance, Control, and Dynamics, Vol. 19, No. 6, Nov￿Dec 1996, pp. 1303￿1309.
  • Coverstone-Carroll, V. , and Prussing, J. E., "Optimal Cooperative Power-Limited Rendezvous with Propellant Constraints", The Journal of the Astronautical Sciences. Vol. 43, No. 3, Jul-Sep 1995, pp. 289-305.
  • "Optimal Impulsive Linear Systems: Sufficient Conditions and Maximum Number of Impulses￿, The Journal of the Astronautical Sciences. Vol. 43, No. 2, Apr-Jun 1995, pp. 195-206.
  • Coverstone-Carroll, V. and Prussing, J. E., "Optimal Cooperative Power-Limited Rendezvous Between Coplanar Circular Orbits", Journal of Guidance, Control, and Dynamics. Vol. 17, No. 5, Sept-Oct 1994, pp. 1096-1102.
  • Taur, D-R., Coverstone-Carroll, V. and Prussing, J. E., "Optimal Impulsive Time-Fixed Orbital Rendezvous and Interception with Path Constraints", Journal of Guidance, Control, and Dynamics. Vol. 18, No. 1, Jan-Feb 1995, pp. 54-60.
  • Prussing, J. E. and Clifton, R. S., "Optimal Multiple-Impulse Satellite Evasive Maneuvers," Journal of Guidance, Control, and Dynamics, Vol. 17, No. 3, May-June 1994, pp 599-606.
  • Coverstone-Carroll, V. and Prussing, J. E., "Optimal Cooperative Power-Limited Rendezvous Between Neighboring Circular Orbits", Journal of Guidance, Control, and Dynamics, Vol. 16, No. 6, Nov-Dec 1993, pp. 1045-1054.
  • Lembeck, C. A. and Prussing, J. E., "Optimal Impulsive Interception with Low-Thrust Rendezvous Return," Journal of Guidance, Control, and Dynamics, Vol. 16, No. 3, May-June 1993, pp. 426-433.
  • "Equation for Optimal Power-Limited Spacecraft Trajectories", Journal of Guidance, Control, and Dynamics, Vol. 16, No. 2, March-April 1993, pp. 391-393.
  • "Simple Proof of the Global Optimality of the Hohmann Transfer", Journal of Guidance, Control, and Dynamics, Vol. 15, No. 4, July-August, 1992, pp. 1037-38
  • Sri Namachchivaya, N. and Prussing, J. E., "Almost-Sure Asymptotic Stability of Rotor Blade Flapping Motion in Forward Flight in Turbulent Flows," Probabilistic Engineering Mechanics, Vol. 6, No. 1, pp. 2-9, March 1991.
  • 31. Prussing, J. E. and Conway. B. A., "The Optimal Terminal Maneuver for a Cooperative Impulsive Rendezvous," Journal of Guidance, Control and Dynamics, Vol. 12, No. 3, May-June 1989, pp. 433-435, also Errata Vol. 12, No. 4, July-August 1989, p. 608.
  • Prussing, J. E., Wellnitz, L. J, and Heckathorn, W. G., "Optimal Impulsive Time-Fixed, Direct-Ascent Interception," Journal of Guidance, Control and Dynamics, Vol. 12, No. 4, July-August 1989, pp. 487-494.
  • Shiau, T. N., Prussing, J. E., and Lin, Y. K., "Fourier Matrix Product with Application to the Rotor Blade Random Vibration," Journal of the Chinese Society of Mechanical Engineers, Vol. 7, No. 4, August 1986, pp. 217-225.
  • "The Principal Minor Test for Semidefinite Matrices", Journal of Guidance, Control and Dynamics, Vol. 9, No. 1, Jan-Feb 1986, pp. 121-122.
  • Prussing, J. E., and Chiu, J-H., "Optimal Multiple Impulse Time-Fixed Rendezvous Between Circular Orbits", Journal of Guidance, Control and Dynamics, Vol. 9, No. 1, Jan-Feb 1986, pp. 17-22, also Errata, Vol. 9, No. 2, p. 255. Also appears in Russian translation in Aerokosmichekaya Techanika (U.S.S.R.) No. 8, 1986, pp. 135-142.
  • Prussing, J. E., Lin, Y. K., and Shiau, T. N., "Rotor Blade Flap-Lag Stability and Response in Forward Flight in Turbulent Flow," Journal of the American Helicopter Society, Vol. 29, No. 4, Oct. 1984, pp. 81-87.
  • Prussing, J. E., and Lin, Y. K., "A Closed-Form Analysis of Rotor Blade Flap-Lag Stability in Hover and Low Speed Forward Flight in Turbulent Flow," Journal of the American Helicopter Society, Vol. 28, No. 3, July 1983, pp. 42-46.
  • Fuh, J.S., Hong, C. Y. R., Lin, Y. K., and Prussing, J. E., "Coupled Flap Torsional Response of a Rotor Blade in Forward Flight due to Atmospheric Turbulence Excitations", Journal of the American Helicopter Society, Vol. 28, No. 3, July 1983, pp. 3-12.
  • Bergam, M. J., and Prussing, J. E., "Comparison of Starting Values for Iterative Solutions to a Universal Kepler's Equation," Journal of the Astronautical Sciences, Vol. 30, No. 1, pp. 75-84, Jan.-Mar. 1982.
  • Lin, Y. K., and Prussing, J. E., "Concepts of Stochastic Stability in Rotor Dynamics," Journal of the American Helicopter Society, Vol. 27, No. 2, pp. 73-74, April 1982.
  • Prussing, J. E., and Lin, Y. K., "Rotor Blade Flap-Lag Stability in Turbulent Flows," Journal of the American Helicopter Society, Vol. 27, No. 2, pp. 51-57, April 1982.
  • "Orthogonal Multiblade Coordinates," Journal of Aircraft, Vol. 18, No. 6, pp. 504-506, June 1981.
  • "Stabilization of an Unstable Linear System by Parametric White Noise", Journal of Applied Mechanics, Vol. 48, No. 1, pp. 198-199, March 1981.
  • "Bounds on the Solution to a Universal Kepler's Equation," Journal of Guidance and Control, Vol. 2, No. 5, pp. 440-442, Sept.-Oct. 1979.
  • "A Geometric Interpretation of the Angles Alpha and Beta in Lambert's Problem," Journal of Guidance and Control, Vol. 2, No. 5, pp. 442-443, Sept.-Oct. 1979.
  • "A Class of Nonlinear Systems Having Constant Optimal Control", International Journal of Control, Vol. 28, No. 3, September 1978, pp. 329-331.
  • Prussing, J. E., and Krier, H., "Transient Temperature Response of Charring Composite Slabs," International Journal of Heat and Mass Transfer, Vol. 21, No. 4, April 1978, pp. 519-22.
  • "The Mean Radius in Kepler's Third Law," American Journal of Physics, Vol. 45, No. 2, December 1977, pp. 1216-1217.
  • How to Serve in Tennis," The Mathematical Gazette, Vol. 61, No. 418, December 1977, pp. 294-96.
  • "Bounds on the Solution to Kepler's Problem," Journal of the Astronautical Sciences, Vol. 25, No. 2, April-June 1977, pp. 123-128.
  • Prussing, J. E., and Wiley, J. C., "An Iterative Procedure for Determining Limit Cycles Using Lagrangian Mechanics," AIAA Journal, Vol. 14, No. 3, March 1976, pp. 320-326.
  • "The Brachistochrone-Tautochrone Problem in a Homogeneous Sphere," American Journal of Physics, Vol. 44, No. 3, 1976, pp. 304-305.
  • Gross, L. R, and Prussing, J. E., "Optimal Multiple-Impulse Direct Ascent Fixed-Time Rendezvous," AIAA Journal, Vol. 12, No. 7, July 1974, pp. 885-889.
  • "A Nonrelativistic Analogy to Relativistic Time Dilatation," The Mathematical Gazette, Vol. LVI, No. 397, October 1972, pp. 197-199.
  • "A Simplified Method for Solving the Matrix Riccati Equation," International Journal of Control, Vol. 15, No. 5, May 1972, pp. 995-1000.
  • "Optimal Two- and Three-Impulsive Fixed-Time Rendezvous in the Vicinity of a Circular Orbit." AIAA Journal, Vol. 8, No. 7, July 1970, pp. 1221￿1228, also appears in Russian in Raketnaya Techanika i Kosmonavtika, Vol. 7, 1970, pp. 46￿56 (U.S.S.R.)
  • Schneider, A. M., Prussing, J. E., and Timin, M., "A Manual Method for Space Rendezvous Navigation and Guidance," Journal of Spacecraft and Rockets, Vol. 6, No. 9, September 1969, pp. 998￿1106.
  • "An Illustration of the Primer Vector in Optimal Time-Fixed Impulsive Transfer." AIAA Journal , Vol. 7, No. 6, June 1969, pp. 1167￿1168.
  • "Optimal Four-Impulse Fixed-Time Rendezvous in the Vicinity of a Circular Orbit." AIAA Journal, Vol. 7, No. 5, May 1969, pp. 928￿935, also appears in Russian in Raketnaya Techanika i Kosmoavtika, No. 5, 1969, pp. 163￿172 (U.S.S.R.)
  • " Obtaining Real Solutions for Nonlinear Systems Using Certain Transformation Techniques," International Journal of Control, Vol. 9, No. 3, March 1969, pp. 359￿362.
  • Hollister, W. M., and Prussing, J. E., "Optimum Transfer to Mars via Venus," Astronautica Acta, Vol. 12, No. 2, March￿April 1966, pp. 169￿179.

Articles in Conference Proceedings

  • Hartmann, J.W., Coverstone, V.L., and Prussing, J.E., ￿Optimal Counter-Intuitive Solar Sail Escape Trajectories￿, Paper No. AAS 04-279, 14th AAS/AIAA Space Flight Mechanics Conference, Maui, Hawaii, February 2004.
  • Prussing, J.E., and Sandrik, S.L., ￿Second-Order Necessary and Sufficient Conditions Applied to LowThrust Trajectories￿, Paper No. AIAA 2002-4726, AIAA/AAS Astrodynamics Specialist Conference, Monterey, CA, Aug. 2002.
  • Prussing, J.E., ￿A Class of Optimal Two-Impulse Rendezvous Using Multiple-Revolution Lambert Solutions￿, Paper AAS 00-250, The Richard H. Battin Astrodynamics Symposium, College Station, TX, March 2000; also in Advances in the Astronautical Sciences, Vol. 106 pp. 17-39, Eds. J.L. Junkins, et al, Univelt Inc., San Diego, CA.
  • Powers, R. B., Coversone-Carroll, V., and Prussing, J. E., ￿Solar Sail Optimal Orbit Transfers to Synchronous Stable Orbits￿ , Paper No. AAS 99-334, AAS/AIAA Astrodynamics Specialist Conference, Girdwood, AK, Aug. 1999; also in Advances in the Astronautical Sciences, Vol. 103, Part I, pp. 523-537, Eds. K.C. Howell, et al, Univelt, Inc., San Diego, CA.
  • Coverstone-Carroll, V. and Prussing, J. E.,￿A Technique for Earth Escape Using a Solar Sail￿, Paper No. AAS 99-333, AAS/AIAA Astrodynamics Specialist Conference, Girdwood, AK, Aug. 1999; also in Advances in the Astronautical Sciences, Vol. 103, Part I, pp. 507-521 Eds. K.C. Howell, et al, Univelt,Inc., San Diego, CA
  • Prussing, J. E. and Coverstone-Carroll, V., ￿Constant Radial Thrust Acceleration Redux", Paper No. 98-4545, AIAA/AAS Astrodynamics Specialist Conference, Boston, MA, Aug. 1998.
  • Jo, J-W. and Prussing, J. E., "Necessary and Sufficient Conditions for Optimal Control Problems with Multiple Terminal Constraints", Paper No. AAS 98-164, AAS/AIAA Space Flight Mechanics Meeting , Monterey, CA,February 1998; also in Advances in the Astronautical Sciences, Vol. 99, Part II, pp. 883-905, Eds. J.W. Middour et al, Univelt Inc., San Diego, CA.
  • Jo, J-W. and Prussing, J. E., "Necessary and Sufficient Conditions for Optimal Control Problems with Scalar Terminal Constraint", Paper No. AAS 98-163, AAS/AIAA Space Flight Mechanics Meeting, Monterey, CA, February 1998, (Received Conference Best Paper Award); also in Advances in the Astronautical Sciences, Vol. 99, Part II, pp. 865-881, Eds. J. Middour et al, Univelt Inc., San Diego, CA.
  • "Terminal Maneuver for an Optimal Cooperative Impulsive Rendezvous", Paper No. AAS 97-649, AAS/AIAA Astrodynamics Conference, Sun Valley, ID, August 1997; Also in Advances in the Astronautical Sciences, Vol. 97, Part I, pp. 759-772, Eds. Felix Hoots et al., Univelt Inc., San Diego, CA.
  • "Optimal Spacecraft Trajectories", Proceedings of the Korea - U.S. Workshop on Aerospace Sciences, Korea - U.S. Science Cooperation Center, Vienna, VA, May 1997.
  • "Closed-Form Thrust Acceleration for Optimal Power-Limited Trajectories", Paper No. AAS 96-198, AAS/AIAA Space Flight Mechanics Meeting, Austin, TX, February 1996; also in Advances in the Astronautical Sciences, Vol. 93, Part II, pp. 1517-1528, Eds. G. Edward Powell et al.,Univelt Inc., San Diego, CA.
  • "Optimal Power-Limited Trajectories in an Arbitrary Gravitational Field", Paper No. AAS 95-216, AAS/AIAA Spaceflight Mechanics Conference, Albuquerque, NM, February 1995; also in Advances in the Astronautical Sciences, Vol. 89, Part II, pp. 1045-1060, Eds. R.J. Proulx et al., Univelt Inc., San Diego, CA.
  • Aspects of Optimal Spacecraft Trajectories", Proceedings on Advances in Nonlinear Astrodynamics, The Geometry Center, University of Minnesota, Research Report GCG65, April 1994.
  • "Optimal Impulsive Linear Systems: Sufficient Conditions and Maximum Number of Impulses", Paper No. AAS 94-174, AIAA/AAS Space Flight Mechanics Meeting, Cocoa Beach, FL, February 1994; also in Advances in the Astronautical Sciences, Vol. 87 Part II, pp. 1015-1023, Eds. J. E. Cochran, Jr., Univelt Inc., San Diego, CA.
  • "Equation for Optimal Power-Limited Spacecraft Trajectories". Paper No. AAS 93-147, AAS/AIAA Spaceflight Mechanics Meeting, Pasadena, CA, February 1993; also in Advances in the Astronautical Sciences, Vol. 82, Part I, pp. 639-648, Eds. R. G. Melton et al., Univelt Inc., San Diego, CA.
  • Coverstone-Carroll, V. and Prussing, J. E. "Optimal Cooperative Power-Limited Rendezvous with Propellant Constraints", Paper No. 92-4508, Proceedings of the 1992 AIAA/AAS Astrodynamics Conference, Hilton Head, SC, August 1992, pp. 246-255.
  • Ochoa, S. I. and Prussing, J. E., "Multiple Revolution Solutions to Lambert's Problem", Paper No. AAS 92-194, AAS/AIAA Spaceflight Mechanics Meeting, Colorado Springs, CO, Feb. 1992; also in Advances in the Astronautical Sciences, Vol. 79, Part II, pp. 1205-1216, Eds. R. E. Diehl et al., Univelt Inc., San Diego, CA.
  • Coverstone-Carroll, V. and Prussing, J. E., "Optimal Cooperative Power-Limited Rendezvous," Paper No. AAS 91-444, AAS/AIAA Astrodynamics Conference, Durango, CO, August 1991; also in Advances in the Astronautical Sciences, Vol. 76, Part III, pp. 1989-2008, Eds. B. Kaufman et al., Univelt Inc., San Diego, CA.
  • Wenzel, R. S. and Prussing, J. E., "Optimal Thrust-Limited Path-Constrained Rendezvous Using Hermite-Simpson Transcription and Nonlinear Programming," Paper No. AAS 91-133 AAS/AIAA Spaceflight Mechanics Meeting, Houston, TX, February 1991; also in Advances in the Astronautical Sciences, Vol. 75, Part I, p, 97 (abstract only), Eds. B. Kaufman et al., Univelt Inc., San Diego, CA.
  • Taur, D.-R., Prussing, J. E., and Coverstone-Carroll, V., "Optimal Impulsive Time-Fixed Orbital Rendezvous and Interception with Path Constraints," Preprint AIAA 90-2972, Proceedings of the 1990 AIAA/AAS Astrodynamics Conference , Portland, OR, pp. 899-906.
  • Larson, C. A. and Prussing, J. E., "Optimal Orbital Rendezvous Using High and Low Thrust, " Preprint 89-354, 1989 AAS/AIAA Astrodynamics Specialist Conference, Stow, VT; also in Advances in the Astronautical Sciences, Vol. 71, Part I, pp. 513-532, Eds. C. L. Thornton et al., Univelt Inc., San Diego, CA.
  • Mirfakhraie, K., Conway, B. A. and Prussing, J. E., "Optimal Cooperative Time-Fixed Impulsive Rendezvous," Proceedings of the 1988 AIAA/AAS Astrodynamics Conference, Minneapolis, MN, Paper No. 88-4279 CP, pp. 469-479.
  • Namachchivaya, N. Sri and Prussing, J. E., "A New Approach to Stochastic Flap-Lag Stability of a Rotor Blade in Hover," Symposium on Nonlinear Vibrations, Stability and Dynamics of Structures and Mechanics, VPI&SU, 1988.
  • Prussing, J. E. and Clifton, R. S. , "Optimal Multiple-Impulse Satellite Avoidance Maneuvers," Paper 87-543, AAS/AIAA Astrodynamics Conference, Kalispell, MT., August 1987; also in Advances in the Astronautical Sciences, Vol. 65, Part II, p. 1552 (abstract only), Eds. J. K. Soldner et al., Univelt Inc., San Diego, CA.
  • Wellnitz, L. J. and Prussing, J. E., "Optimal Trajectories for Time-Constrained Rendezvous between Arbitrary Conic Orbits," Paper 87-539 1987 AAS/AIAA Astrodynamics Conference, Kalispell, MT; also in Advances in the Astronautical Sciences, Vol. 65, part II, pp. 1501-1513, Eds. J. K. Soldner, et al., Univelt Inc., San Diego, CA.
  • Prussing, J. E. and Chiu, J-H., "Optimal Multiple-Impulse Time-Fixed Rendezvous between Circular Orbits," Preprint 84-2036, AIAA/AAS Astrodynamics Conference, Seattle, WA, Aug. 1984.
  • Prussing, J. E. and Lin, Y. K., "A Closed-Form Analysis of Rotor Blade Flap-Lag Stability in Hover and Low-Speed Forward Flight in Turbulent Flow," Proceedings of the AIAA/ASME/ASCE/AHS 24th Structures, Structural Dynamics and Materials Conference, Lake Tahoe, NV, May 1983.
  • Bounds on the Solution to Kepler's Equation," AIAA/AAS Astrodynamics Conference, Palo Alto, CA, 1978.
  • Gross, L. R. and Prussing, J. E., "Optimal Multiple-Impulse Direct-Ascent Fixed-Time Rendezvous," AAS/AIAA Astrodynamics Conference, Vail, Colorado, July 1973.
  • Sorenson, H. W., Prussing, J. E., and Sacks, J. E., "Rocket Sled Data Processing Using Fading Memory Filtering with Residual Feedback," Proceedings of the Fifth Biennial Guidance Test Symposium, Holloman Air Force Base, New Mexico, Oct. 1970, pp. 1-43.
  • Sorenson, H. W., Prussing, J. E., and Sacks, J. E., "Fading Memory Filtering with Residual Feedback--An Application to Rocket Sled Data Processing." Proceedings of the Symposium on Nonlinear Estimation Theory and its Applications, San Diego, California, Sept. 1970, Western Periodicals Co., North Hollywood, California, pp. 281-285.
  • Schneider, A. M., Prussing, J. E., and Timin, M. E., "A Manual Method for Space Rendezvous Navigation and Guidance, Paper No. 68-859, AIAA Guidance, Control, and Flight Dynamics Conference, Pasadena, CA, Aug. 1968.
  • Hollister, W. M. and Prussing, J. E., "Optimal Transfer to Mars via Venus," Paper No. 65-700 AIAA/ION Astrodynamics Specialist Conference, Monterey, CA, Sept. 1965

Journal Editorships

  • Associate Editor, Journal of Guidance, Control, and Dynamics (AIAA), 1989￿1992

Professional Societies

  • American Astronautical Society (AAS): Spaceflight Mechanics Committee 1980-96
  • American Institute of Aeronautics & Astronautics (AIAA): Astrodynamics Technical Committee, Chair 1982-84, Member 1979-80, 1987-90; Treasurer Illinois Section 1908-present