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Dr. Lincoln J. Wood

Principal Navigation Engineer

About

Education

Cornell University

Bachelor of Science degree with Distinction, June 1968. Major: Engineering Physics. Member, Tau Beta Pi, Phi Kappa Phi, Phi Eta Sigma. Dean's List, 1964-68. Annie F. and Oscar W. Rhodes Scholarship, 1964-68.

Stanford University

Doctor of Philosophy degree in June 1972. Major department: Aeronautics and Astronautics. Minor department: Physics. Dissertation title: “Second-Order Optimality Conditions and Optimal Feedback for Variable End Time Terminal Control Problems.” National Science Foundation Trainee, 1968-72. Master of Science degree in Aeronautics and Astronautics, June 1969.

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Experience

Professional Experience

Jet Propulsion Laboratory, California Institute of Technology, 1977-

Principal Navigation Engineer, 2009-. Task lead for navigation activities supporting Interplanetary Network Directorate (IND) Strategic Partnerships & Customer Formulation Office/Architecture & Strategic Planning Office, including assessment of Deep Space Network capabilities needed for accurate, cost-effective navigation of future planetary missions and documentation of how deep space navigation has been performed over multiple decades (Evolution of Deep Space Navigation). Manager of Navigation Work Area within IND Space Networking & Mission Automation Technology Program. Task lead for Navigation and Mission Design Technology Assessment for Future Planetary Science Missions, 2021-23 (Technology Assessment Reports - NASA Science). Author or reviewer of multiple navigation and mission design studies or documents for Multimission Ground Systems & Services Program Office or Mission Design & Navigation Section, 2020-. Lead author of chapter in NASA navigation best practices document (in preparation), 2020-21. Proposal evaluator for NASA’s Small Business Innovative Research and Space Technology Research Fellowship programs and JPL’s Research and Technology Development program. JPL Primary Point of Contact for NASA’s In-Space Transportation Systems Capability Leadership Team, 2018-. Co-investigator on Pulsar-Based Navigation Research and Technology Development task, 2017-20, and precursor Strategic University Research Partnership task, 2015-16. Member, Mission Systems & Operations Division’s Principal Designation Advisory Board, 2015 and 2020. Secondary representative of Mission Systems & Operations Division to IND (for Mission Design and Navigation Section), 2014-. Review team member for navigation technology roadmaps produced by NASA’s Office of the Chief Technologist and Discovery proposal submitted to NASA’s Planetary Science Division, 2011-15. Task lead for Navigation and Mission Design Technology Assessment for Future Planetary Science Missions, 2011-14 (Technology Assessment Reports - NASA Science). Navigation and mission design representative to Human/Robotic Mission Systems Office/Exploration Systems and Technology Office, 2009-14. Lead individual for Mission Design and Navigation Section’s Lunar/Near-Earth Object Monthly Forum, 2009-13. Acting Technical Group Supervisor, Inner Planet Navigation Group, 2011-12, and Mission Design and Navigation System Engineering Group, 2010.

Program Manager II, 2003-09. Manager of Navigation Work Area within IND Space Networking & Mission Automation Program Office/Information Technology Program Office, 2005-09. Lead individual for guidance, navigation, and control program development and strategic planning within Exploration Systems and Technology Office, 2008-09. Lead JPL individual for lunar gravity modeling within NASA’s Lunar Mapping and Modeling Project, 2008-09. Member of Constellation Program navigation requirements development team, 2006. Leader of Solar System Exploration Directorate guidance, navigation, and control technology assessment team, 2005-06. Navigation and mission design lead on Multi-Mission Ground Systems and Services Program Office transition team, 2004-05. Tracking and Navigation Service System Manager within Deep Space Mission System (DSMS) Engineering and Operations Programs, 2003-04. In latter position, was responsible for technical and financial management of programs with FY’04 budget of $20.8M, covering work of 68 full-time equivalent personnel. Functional areas encompassed include tracking and navigation system engineering; tracking system analytic calibrations; estimation and prediction of Earth’s polar motion and length of day; GPS calibration software development and operations; very long baseline interferometry (VLBI) software and reference frame development; delta-differential one-way ranging implementation and operations; radio metric data conditioning software development and quality assurance; Deep Space Network frequency and timing subsystem engineering and maintenance; mission design, legacy and next-generation navigation, optical navigation, and navigation ancillary information software development and maintenance; multimission navigation operations; planetary, satellite, and small body ephemeris development; and gravity field modeling. Also led or supported navigation activities within IND Architecture & Strategic Planning Office/DSMS Strategic Planning Office, including planning of future navigation capabilities and definition of requirements, chairing sessions or making presentations at external reviews, and serving as lead author of NASA Roadmap for Deep Space Navigation and other navigation-related documents.

Principal Member of Engineering Staff, 2000-03. Deputy Leader, Center of Excellence for Deep Space Communications and Navigation Systems (DESCANSO). Responsible for leading center, jointly with Leader, focusing particularly on navigation area; developing annual center task plans and regularly presenting status and accomplishments to Technical Infrastructure Committee; representing guidance, navigation, and control technical domain in numerous JPL- and NASA-wide technology planning activities; developing comprehensive bibliography on deep space navigation for DESCANSO web site; serving as technical chairman or organizing committee member and session chairman for two DESCANSO-sponsored external symposia; and representing DESCANSO on Guidance, Navigation, and Control Leadership Council. Leader, Navigation and Mission Design Section’s Navigation Advisory Group, 2001-04. Responsible for organizing reviews of navigation activities of flight projects in development or operational phases. Previously participated in MCO failure analysis studies and MPL navigation planning and assessment activities. Chairman, Foreign Conference Travel Subcommittee of Travel Approval Coordination Committee, 1999-2008. Member, Systems Division’s Principal Promotion Advisory Board (PPAB), 2001-03, and Mechanical Systems Engineering & Research Division’s PPAB, 2003.

Line Manager II, 1996-2000. Deputy Technical Section Manager, Navigation and Flight Mechanics Section, Systems Division, 1995-99, and Acting Technical Section Manager, 1999. Responsible, with Section Manager, for management of technical section that designed, analyzed, and operated NASA's deep-space navigation systems, engaged in navigation-related science and technology development activities, and performed trajectory analysis functions in support of space mission design. (Section included 130 engineers and scientists, including 50 with Ph.D. degrees.) Programmatic responsibilities encompassed all of section's work performed for one JPL program directorate and portions of work performed for three other directorates, with emphasis on technology development and advanced studies. Deputy Technical Section Manager, Navigation Systems Section, Systems Division, 1991-95. Responsibilities similar to those above, for technical section of 100 engineers and scientists with same navigation role but without trajectory analysis role. Also, Acting Deputy Leader, Center of Excellence for Deep Space Communications and Navigation Systems, 1997-2000; Chairman, Guidance, Navigation, and Control Leadership Council, 1999; Chairman, Heavily Attended Domestic Conference Subcommittee of Travel Approval Coordination Committee, 1996-2000; Acting Systems Division Representative to Telecommunications and Mission Operations Directorate, 1994-99; project manager for JPL's tracking and navigation contributions to BMDO/NASA Clementine mission, 1992-94; and Senior Member of Technical Staff, 1992-96.

Technical Manager within Navigation Systems Section, 1989-91. Responsibilities included being Section Technologist; Technical Manager of Guidance and Navigation Technology Program within Optics, Controls, and Structures Program (NASA Technology Program Office); Manager of Space Systems and Navigation Technology Program within Deep Space Network Advanced Systems Program; and manager of Aerobraking RTOPs or work units. Also JPL Representative to Aerobrake Intercenter Working Group and to Guidance, Navigation and Control Panel of Strategic Avionics Technology Working Group, and leader or deputy leader of multi-center aerobraking GN&C activities.

Technical Group Supervisor (Future Mission Studies Group), Navigation Systems Section, 1981-89. (Group was responsible for planning of navigation systems and strategies for proposed NASA planetary missions of the 1990s and beyond; for studies of aeroassisted orbital transfer, space station navigation, air traffic surveillance, precise instrument pointing, orbiting VLBI, and gravity gradiometry; for orbit determination analysis software development and maintenance; and (initially) for maneuver support of certain Earth-orbiting scientific missions.) Additional responsibilities included being Navigation Manager for Mariner Mark II/Comet Rendezvous Asteroid Flyby, Mars Rover Sample Return, and Mars Observer Development Flight Projects, coordinating advanced planetary mission navigation studies, and being JPL Navigation Representative to Systems Working Group of NASA's Space Station Task Force. Also served as Navigation Subsystem Development Task Leader for Autonomous Redundancy and Maintenance Management Subsystem Demonstration Project of Autonomous Spacecraft Program, a U.S. Air Force sponsored project intended to demonstrate addition of autonomous features to geostationary spacecraft.

Member Technical Staff, Navigation Systems Section, 1977-81. Was Navigation Development Team Leader, Halley Intercept Development Flight Project (responsible for technical and administrative leadership of project navigation activities, navigation system design, navigation strategy development and accuracy analysis, and formulation of navigation requirements). Also, Task Leader for Future Mission Navigation Studies, JPL Representative to Precision Orbit Determination Task Group of Ocean Topography Experiment Development Flight Project, Navigation Development Team Leader for Comet Rendezvous Development Project, member of Project Galileo Navigation Development Team, and navigation representative to Project Galileo Imaging Science Team.

California Institute of Technology, 1972-1974, 1975-1984, 1987, 1989

Visiting Associate Professor of Systems Engineering, 1978-84 (part-time); Visiting Assistant Professor of Systems Engineering, 1976-78 (part-time); Lecturer in Systems Engineering, 1975-76 (part-time); Bechtel Instructor in Engineering, 1972-74 (full-time). Taught courses covering continuous and discrete-data control systems, deterministic and stochastic optimal control, estimation theory, and aspects of mathematical system theory and nonlinear programming. Served as advisor or co-advisor of five graduate students, member of twelve Ph.D. thesis examining committees, and member of roughly fifteen Ph.D. candidacy examination committees. Conducted or supervised research on feedback controller design for systems with uncertain parameters, aircraft autopilot design, aircraft trajectory optimization, spacecraft guidance techniques, numerical solution of two-point boundary value problems, and necessary and sufficient conditions of optimality for various dynamic optimization problems. Coordinated Case Studies in Engineering course dealing with Project Galileo, with lectures given by key JPL project personnel, 1987, 1989.

Hughes Aircraft Company, El Segundo, California, 1974-1977

Staff Engineer, Dynamics and Controls Department, Systems Analysis Laboratory, Space and Communications Group. Was involved with roughly a dozen scientific, commercial, and military earth satellite projects, at stages of development ranging from preliminary studies and proposal activity to final spacecraft testing. Also worked on several studies involving interplanetary spacecraft. Work was concentrated in the areas of attitude estimation and control, orbit determination, and vehicle dynamics. Attitude estimation problems involved the processing of data from optical and inertial sensors, magnetometers, and microwave interferometers to optimally estimate spacecraft attitude. Designed attitude control logic for three-axis stabilized spacecraft in precision pointing missions and developed statistical techniques for analyzing pointing performance. Applied modern control and estimation techniques to the control of large flexible spacecraft. Investigated launch vehicle inertial measurement unit mechanizations. Investigated orbit determination problems for autonomous earth satellites and interplanetary spacecraft. Supervised system-level control system performance tests of a dual-spin geostationary meteorological satellite. Vehicle dynamics problems included active nutation control and flat-spin recovery techniques for unstable spinning spacecraft, stability analysis of dual-spin spacecraft, and analysis of the effects of disturbance torques on spacecraft pointing performance.

Consulting Relationships

Hughes Aircraft Company – orbit determination and attitude estimation for autonomous earth satellites, 1979.

Factorized Estimation Applications, Canoga Park, CA – design of parameter-insensitive heading autopilot for commercial aircraft (performed for Litton Industries, Aero Products Division), 1979.

Jet Propulsion Laboratory – mission design, trajectory optimization, and terminal guidance for solar-electric propulsion cometary missions, 1972-1974.

Achievements

Awards & Recognitions

Publications

Publications in Archival Journals

Wood, L. J. and Bryson, A. E., Jr., "Second-Order Optimality Conditions for Variable End Time Terminal Control Problems," AIAA Journal, Vol. 11, Sept. 1973, pp. 1241-1246. doi:10.2514/3.50573*

Wood, L. J., "Second-Order Optimality Conditions for the Bolza Problem with Both Endpoints Variable," Journal of Aircraft, Vol. 11, April 1974, pp. 212-221. doi:10.2514/3.59222* (Errata published in Vol. 12, August 1975, p. 692. doi:10.2514/3.59858)

Wood, L. J., "Comment on `Neighboring Extremals for Optimal Control Problems,'" AIAA Journal, Vol. 12, October 1974, pp. 1452-1454. doi:10.2514/3.49520

Rinker, G. C., Jacobson, R. A., and Wood, L. J., "Statistical Analysis of Trim Maneuvers in Low-Thrust Interplanetary Navigation," Journal of Spacecraft and Rockets, Vol. 13, August 1976, pp. 509-512. doi:10.2514/3.57114*

Wood, L. J., "Comment on `Application of the Conjugate Gradient Method to a Problem on Minimum Time Orbit Transfer,'" IEEE Transactions on Aerospace and Electronic Systems, Vol. AES-13, July 1977, pp. 388-390. doi:10.1109/TAES.1977.308472

Uehara, S., Stewart, H. J., and Wood, L. J., "Minimum-Time Loop Maneuvers of Jet Aircraft," Journal of Aircraft, Vol. 15, August 1978, pp. 449-455. doi:10.2514/3.58389

Vinkler, A. and Wood, L. J., "Multistep Guaranteed Cost Control of Linear Systems with Uncertain Parameters," Journal of Guidance and Control, Vol. 2, Nov.-Dec. 1979, pp. 449-456. doi:10.2514/3.55908*

Vinkler, A. P., Wood, L. J., Ly, U.-L., and Cannon, R. H., Jr., "Minimum Expected Cost Control of a Remotely Piloted Vehicle," Journal of Guidance and Control, Vol. 3, Nov.-Dec. 1980, pp. 517-522. doi:10.2514/3.56031* Translated into Russian and published in Rocket Technology and Cosmonautics, Vol. 19, May 1981, pp. 141-149.

Yeomans, D. K., Ananda, M., Sjogren, W. L., and Wood, L. J., "Cometary Mass Determination," The Journal of the Astronautical Sciences, Vol. XXIX, Jan.-Mar. 1981, pp. 19-33.

Wood, L. J., "Navigation Accuracy Analysis for an Ion Drive Flyby of Comet Halley," Journal of Guidance and Control, Vol. 4, July-August 1981, pp. 369-375. doi:10.2514/3.56089* Translated into Russian and published in Rocket Technology and Cosmonautics, Vol. 20, April 1982, pp. 139-148.

Wood, L. J. and Krinik, A. C., "Navigation Accuracy Analysis for an Ion Drive Rendezvous with Comet Tempel 2," Journal of Guidance and Control, Vol. 4, Sept.-Oct. 1981, pp. 570-573. doi:10.2514/3.19759*

Wood, L. J., "Comment on `Stability of a Precision Attitude Determination Scheme,'" Journal of Guidance and Control, Vol. 4, Sept.-Oct. 1981, pp. 573-574. doi:10.2514/3.19760

Wood, L. J., Bauer, T. P., and Zondervan, K. P., "Comment on `Time-Optimal Orbit Transfer Trajectory for Solar Sail Spacecraft,'" Journal of Guidance, Control, and Dynamics, Vol. 5, Mar.-Apr. 1982, pp. 221-224. doi:10.2514/3.56160

Wood, L. J., "Navigation Accuracy Analysis for a Halley Intercept Mission," Journal of Guidance, Control, and Dynamics, Vol. 5, May-June 1982, pp. 300-306. doi:10.2514/3.56170* Translated into Russian and published in Aeronautics/Space Technology, Vol. 1, May 1983, pp. 200-209.

Wood, L. J., "Comment on `Optimal Control via Mathematical Programming,'" Journal of Guidance, Control, and Dynamics, Vol. 5, May-June 1982, pp. 318-319. doi:10.2514/3.56173

Wood, L. J., Craig, S. L., Yeomans, D. K., and Bergam, M. J., "Navigation System Design for a Halley Sample Return Mission," Journal of the Astronautical Sciences, Vol. XXX, Oct.-Dec. 1982, pp. 329-346.*

Mease, K. D., Wood, L. J., Bergam, M. J., and White, L. K., "Estimation of Solar Gravitational Harmonics with Starprobe Radiometric Tracking Data," The Journal of the Astronautical Sciences, Vol. XXXI, Jan.-March 1983, pp. 3-22.*

Bauer, T. P., Wood, L. J., and Caughey, T. K., "Gain Indexing Schemes for Low-Thrust Perturbation Guidance," Journal of Guidance, Control, and Dynamics, Vol. 6, Nov.-Dec. 1983, pp. 518-525. doi:10.2514/3.8533*

Mease, K. D., Anderson, J. D., Wood, L. J., and White, L. K., "Tests of General Relativity Using Starprobe Radio Metric Tracking Data," Journal of Guidance, Control, and Dynamics, Vol. 7, Jan.-Feb. 1984, pp. 36-44. doi:10.2514/3.8542* Translated into Russian and published in Aeronautics/Space Technology, Vol. 3, March 1985, pp. 151-162.

Jordan, J. F. and Wood, L. J., "Interplanetary Navigation: An Overview," The Journal of the Astronautical Sciences, Vol. 32, Jan.-March 1984, pp. 17-28.*

Zondervan, K. P., Wood, L. J., and Caughey, T. K., "Optimal Low-Thrust, Three-Burn Orbit Transfers with Large Plane Changes," The Journal of the Astronautical Sciences, Vol. 32, Oct.-Dec. 1984, pp. 407-427.*

Wood, L. J. and Jordan, J. F., "Interplanetary Navigation through the Year 2005: The Inner Solar System," The Journal of the Astronautical Sciences, Vol. 32, Oct.-Dec. 1984, pp. 357-376.*

Wood, L. J., "Interplanetary Navigation through the Year 2005: The Outer Solar System," The Journal of the Astronautical Sciences, Vol. 33, Apr.-June 1985, pp. 125-145.*

Mease, K. D., Ryne, M. S., and Wood, L. J., "An Approach to Autonomous, Onboard Orbit Determination," The Journal of the Astronautical Sciences, Vol. 33, Apr.-June 1985, pp. 163-178.*

Wood, L. J., "Orbit Determination Singularities in the Doppler Tracking of a Planetary Orbiter," Journal of Guidance, Control, and Dynamics, Vol. 9, July-Aug. 1986, pp. 485-494. doi:10.2514/3.20136*

Jordan, J. F. and Wood, L. J., "Navigation, Space Mission," Encyclopedia of Physical Science and Technology, Vol. 8, Academic Press, 1987, pp. 744-767.

Miller, J. K., Weeks, C. J., and Wood, L. J., "Orbit Determination Strategy and Accuracy for a Comet Rendezvous Mission," Journal of Guidance, Control, and Dynamics, Vol. 13, Sept.-Oct. 1990, pp. 775-784. doi:10.2514/3.25402*

Rapp, D., Kohlhase, C. E., Jr., Muirhead, B. K., Atkins, K. L., Garrison, P. W., Breckenridge, W. G., Stanton, R. H., and Wood, L. J., "Astronautics," Encyclopedia of Applied Physics, Vol. 2, edited by G. L. Trigg, American Institute of Physics, VCH Publishers, New York, 1991, pp. 25-63. doi:10.1002/3527600434.eap024

Jordan, J. F. and Wood, L. J., "Navigation, Space Mission," Encyclopedia of Physical Science and Technology, Vol. 10, Academic Press, 1992, pp. 649-673.

Kachmar, P. M. and Wood, L. J., "Space Navigation Applications," Navigation: Journal of the Institute of Navigation, Vol. 42, Spring 1995, pp. 187-234. doi:10.1002/j.2161-4296.1995.tb02335.x

Wood, L. J., “Interplanetary Navigation,” Encyclopedia of Aerospace Engineering, Vol. 5, edited by R. Blockley and W. Shyy, John Wiley & Sons, Ltd., Chichester, UK, 2010, pp. 3071-3084. doi:10.1002/9780470686652.eae287

Quadrelli, M. B., Wood, L. J., Riedel, J. E., McHenry, M. C., Aung, M., Cangahuala, L. A., Volpe, R. A., Beauchamp, P. M., and Cutts, J. A., “Guidance, Navigation, and Control Technology Assessment for Future Planetary Science Missions,” Journal of Guidance, Control, and Dynamics, Vol. 38, July 2015, pp. 1165-1186. doi:10.2514/1.G000525*

Chen, P.-T., Zhou, B., Speyer, J. L., Bayard, D. S., Majid, W. A., and Wood, L. J., “Aspects of Pulsar Navigation for Deep Space Mission Applications,” The Journal of the Astronautical Sciences, Vol. 67, June 2020, pp. 704-739. doi:10.1007/s40295-019-00209-9

* Revised version of conference paper

Papers Presented at Conferences/Contributions to Conference Proceedings

Wood, L. J., "Perturbation Guidance for Minimum Time Flight Paths of Spacecraft," AIAA Paper 72-915, AIAA/AAS Astrodynamics Conference, Palo Alto, CA, Sept. 1972. doi:10.2514/6.1972-915

Wood, L. J. and Bryson, A. E., Jr., "Second-Order Optimality Conditions for Variable End Time Terminal Control Problems," AIAA Paper 72-932, AIAA/AAS Astrodynamics Conference, Palo Alto, CA, Sept. 1972. doi:10.2514/6.1972-932*

Wood, L. J., "Second-Order Optimality Conditions for the Bolza Problem with Variable Endpoints and Separated End Conditions," Paper 7-5, Proceedings of the 1973 Joint Automatic Control Conference, Columbus, OH, June 1973, pp. 193-204.*

Wood, L. J., "Second-Order Optimality Conditions for the Bolza Problem with Path Constraints," Paper FA2-6, Proceedings of the 1973 IEEE Conference on Decision and Control, San Diego, CA, Dec. 1973, pp. 606-613. doi:10.1109/CDC.1973.269232

Rinker, G. C., Wood, L. J., and Jacobson, R. A., "Statistical Analysis of Trim Maneuvers in Low-Thrust Interplanetary Navigation," AIAA Paper 75-85, AIAA 13th Aerospace Sciences Meeting, Pasadena, CA, Jan. 1975. doi:10.2514/6.1975-85*

Vinkler, A. and Wood, L. J., "Guaranteed Cost Control of Linear Systems with Uncertain Parameters - Application to Remotely Piloted Vehicle Flight Control Systems," AIAA Paper 78-1274, Proceedings of the 1978 AIAA Guidance and Control Conference, Palo Alto, CA, Aug. 1978, pp. 226-234. doi:10.2514/6.1978-1274*

Vinkler, A. and Wood, L. J., "A Comparison of Several Techniques for Designing Controllers of Uncertain Dynamic Systems," Paper WA1-12:30, Proceedings of the 17th IEEE Conference on Decision and Control, San Diego, CA, Jan. 1979, pp. 31-38. doi:10.1109/CDC.1978.267889

Wood, L. J. and Hast, S. L., "Navigation System Design for a Halley Flyby/Tempel 2 Rendezvous Mission Using Ion Drive," in Advances in the Astronautical Sciences: Astrodynamics 1979, Vol. 40, Part I, edited by P. Penzo, et al., Univelt, San Diego, 1980, pp. 49-78. Also AAS Paper 79-110, AAS/AIAA Astrodynamics Conference, Provincetown, MA, June 1979.

Sackett, L. L., Hastrup, R. C., Yen, C. L., and Wood, L. J., "Comet Rendezvous Mission Design Using Solar Electric Propulsion," in Advances in the Astronautical Sciences: Astrodynamics 1979, Vol. 40, Part I, edited by P. Penzo, et al., Univelt, San Diego, 1980, pp. 343-372. Also AAS Paper 79-117, AAS/AIAA Astrodynamics Conference, Provincetown, MA, June 1979.

Vinkler, A. P., Wood, L. J., Ly, U.-L., and Cannon, R. H., Jr., "Minimum Expected Cost Control of Linear Systems with Uncertain Parameters - Application to Remotely Piloted Vehicle Flight Control Systems," AIAA Paper 79-1745, Proceedings of the 1979 AIAA Guidance and Control Conference, Boulder, CO, Aug. 1979, pp. 379-387. doi:10.2514/6.1979-1745*

Wood, L. J. and Hast, S. L., "Navigation Accuracy Analysis for the Halley Flyby Phase of a Dual Comet Mission Using Ion Drive," AIAA Paper 80-0115, AIAA 18th Aerospace Sciences Meeting, Pasadena, CA, Jan. 1980. doi:10.2514/6.1980-115*

Jordan, J. F. and Wood, L. J., "Challenges in Interplanetary Navigation: 1980-2000," AIAA Paper 80-0910, AIAA 1980 International Meeting and Technical Display: Global Technology 2000, Baltimore, MD, May 1980.

Wood, L. J. and Krinik, A. C., "Navigation Accuracy Analyses for Two Comet Rendezvous Missions Using Ion Drive," AIAA Paper 80-1684, AIAA/AAS Astrodynamics Conference, Danvers, MA, Aug. 1980. doi:10.2514/6.1980-1684*

Wood, L. J., "Navigation Accuracy Analysis for a Halley Intercept Mission," AIAA Paper 81-0312, AIAA 19th Aerospace Sciences Meeting, St. Louis, MO, Jan. 1981. doi:10.2514/6.1981-312*

Wood, L. J. and Jordan, J. F., "Interplanetary Navigation in the 1980's and 1990's," in Advances in the Astronautical Sciences: Astrodynamics 1981, Vol. 46, Part I, edited by A. L. Friedlander, et al., Univelt, San Diego, 1982, pp. 137-161. Also AAS Paper 81-113, AAS/AIAA Astrodynamics Conference, Lake Tahoe, NV, Aug. 1981.

Mease, K. D., Wood, L. J., Bergam, M. J., and White, L. K., "Estimation of Solar Gravitational Harmonics with Starprobe Radiometric Tracking Data," in Advances in the Astronautical Sciences: Astrodynamics l981, Vol. 46, Part I, edited by A. L. Friedlander, et al., Univelt, San Diego, 1982, pp. 401-424. Also AAS Paper 81-138, AAS/AIAA Astrodynamics Conference, Lake Tahoe, NV, Aug. 1981.*

Wood, L. J., Craig, S. L., Yeomans, D. K., and Bergam, M. J., "Navigation System Design for a Halley Sample Return Mission," AIAA Paper 82-0137, AIAA 20th Aerospace Sciences Meeting, Orlando, FL, Jan. 1982. doi:10.2514/6.1982-137*

Mease, K. D., Anderson, J. D., Wood, L. J., and White, L. K. "Tests of General Relativity Using Starprobe Radiometric Tracking Data," AIAA Paper 82-0205, AIAA 20th Aerospace Sciences Meeting, Orlando, FL, Jan. 1982. doi:10.2514/6.1982-205*

Mease, K. D., Weidner, R. J., Kechichian, J. A., Wood, L. J., and Cruz, M. I., "Aerocapture: Guidance, Navigation, and Control," AIAA Paper 82-1381, AIAA 9th Atmospheric Flight Mechanics Conference, San Diego, CA, Aug. 1982. doi:10.2514/6.1982-1381

Bauer, T. P., Wood, L. J., and Caughey, T. K., "Low-Thrust Perturbation Guidance," AIAA Paper 82-1430, AIAA/AAS Astrodynamics Conference, San Diego, CA, Aug. 1982. doi:10.2514/6.1982-1430*

Wood, L. J., Mottinger, N. A., and Jordan, J. F., "Radio Metric Orbit Determination for the Giotto Mission to Comet Halley," AIAA Paper 83-0196, AIAA 21st Aerospace Sciences Meeting, Reno, NV, Jan. 1983. doi:10.2514/6.1983-196

Jordan, J. F. and Wood, L. J., "Interplanetary Navigation: An Overview," 8th Cybernetics Congress of the German Society of Cybernetics, Tübingen, Federal Republic of Germany, March 1983. Also in Proceedings in Life Sciences: Localization and Orientation in Biology and Engineering, edited by D. Varjú and H.-U. Schnitzler, Springer-Verlag, Heidelberg, 1984, pp. 294-305. doi:10.1007/978-3-642-69308-3_53*

Wood, L. J., Jones, J. B., Mease, K. D., Kwok, J. H., Goltz, G. L., and Kechichian, J. A., "Autonomous Navigation: The ARMMS Concept," in Advances in the Astronautical Sciences: Astrodynamics 1983, Vol. 54, Part I, edited by G. T. Tseng, et al., Univelt, San Diego, 1984, pp. 523-541. Also AAS Paper 83-359, AAS/AIAA Astrodynamics Conference, Lake Placid, NY, August 1983.

Zondervan, K. P., Wood, L. J., and Caughey, T. K., "Optimal Low-Thrust Transfers with Large Plane Changes," AAS Paper 83-414, AAS/AIAA Astrodynamics Conference, Lake Placid, NY, August 1983.*

Mease, K. D., Ryne, M. S., and Wood, L. J., "An Approach to Autonomous, Onboard Orbit Determination," AIAA Paper 84-2031, AIAA/AAS Astrodynamics Conference, Seattle, WA, Aug. 1984. doi:10.2514/6.1984-2031*

Wood, L. J., "Orbit Determination Singularities in the Doppler Tracking of a Planetary Orbiter," AIAA Paper 85-0218, AIAA 23rd Aerospace Sciences Meeting, Reno, NV, Jan. 1985. doi:10.2514/6.1985-218*

Wood, L. J. and Jordan, J. F., "Interplanetary Navigation through the Year 2005: The Inner Solar System," Proceedings of the Forty-First Annual Meeting of the Institute of Navigation, Annapolis, MD, June 1985, pp. 73-82.*

Wood, L. J., "Interplanetary Navigation through the Year 2005: The Outer Solar System," AAS Paper 85-309, AAS/AIAA Astrodynamics Conference, Vail, CO, August 1985.*

Vijayaraghavan, A. and Wood, L. J., "Titan Probe Navigation Analysis," in Advances in the Astronautical Sciences: Astrodynamics 1985, Vol. 58, Part II, edited by B. Kaufman, et al., Univelt, San Diego, 1986, pp. 1241-1255. Also AAS Paper 85-310, AAS/AIAA Astrodynamics Conference, Vail, CO, August 1985.

Miller, J. K. and Wood, L. J., "Navigation of the Mariner Tempel 2 Mission: Orbit Phase and Penetrator Deployment," Paper 87-0092, AIAA 25th Aerospace Sciences Meeting, Reno, NV, Jan. 1987. doi:10.2514/6.1987-92

Vijayaraghavan, A. and Wood, L. J., "Mars Rover Sample Return Navigation: Orbit Phase," AIAA Paper 88-4232, AIAA/AAS Astrodynamics Conference, Minneapolis, MN, Aug. 1988. doi:10.2514/6.1988-4232

Wood, L. J., "Deep-Space Navigation Applications," 27th IEEE Conference on Decision and Control/Factorized Estimation Applications Symposium, Austin, TX, Dec. 1988.

Miller, J. K., Weeks, C. J., and Wood, L. J., "Orbit Determination of the Comet Rendezvous/Asteroid Flyby Mission: Post-Rendezvous Phases," AIAA Paper 89-0348, AIAA 27th Aerospace Sciences Meeting, Reno, NV, Jan. 1989. doi:10.2514/6.1989-348*

Wander, S. M., Arnold, J. O., Ried, R. C., Wood, L. J., and Walberg, G. D., "Interplanetary Aerobraking: Program Status Report," AIAA/JPL 2nd International Conference on Solar System Exploration, Pasadena, CA, August 1989.

Konopliv, A. and Wood, L. J., "High-Accuracy Mars Approach Navigation with Radio Metric and Optical Data," AIAA Paper 90-2907, Proceedings of the AIAA/AAS Astrodynamics Conference, Portland, OR, August 1990, pp. 364-376. doi:10.2514/6.1990-2907

Edwards, C. D., Jr., Folkner, W. M., Border, J. S., and Wood, L. J., "Spacecraft-Spacecraft Very Long Baseline Interferometry for Planetary Approach Navigation," in Advances in the Astronautical Sciences: Spaceflight Mechanics 1991, Vol. 75, Part II, edited by J. K. Soldner, et al., Univelt, San Diego, 1991, pp. 1161-1181. Also AAS Paper 91-181, AAS/AIAA Spaceflight Mechanics Meeting, Houston, TX, Feb. 1991.

Wood, L. J., "Sufficient Conditions for a Local Minimum of the Bolza Problem with a Scalar Terminal Point Constraint," in Advances in the Astronautical Sciences: Astrodynamics 1991, Vol. 76, edited by B. Kaufman, et al., Univelt, San Diego, 1992, pp. 2053-2072. Also AAS Paper 91-449, AAS/AIAA Astrodynamics Conference, Durango, CO, Aug. 1991.

Wood, L. J., "Sufficient Conditions for a Local Minimum of the Bolza Problem with Multiple Terminal Point Constraints," AAS Paper 91-450, AAS/AIAA Astrodynamics Conference, Durango, CO, Aug. 1991.

Wood, L. J., "Sufficient Conditions for a Local Minimum of the Bolza Problem with a Variable Initial Point," in Advances in the Astronautical Sciences: Spaceflight Mechanics 1992, Vol. 79, edited by R. Diehl, et al., Univelt, San Diego, 1992, pp. 343-369. Also AAS Paper 92-135, AAS/AIAA Spaceflight Mechanics Meeting, Colorado Springs, CO, Feb. 1992.

Wood, L. J., "An Overview of Deep-Space Navigation," National Telesystems Conference 1992, sponsored by IEEE and George Washington University, Washington, DC, May 1992.

Martin-Mur, T. J., Abraham, D. S., Berry, D., Bhaskaran, S., Cesarone, R. J., and Wood, L. J, “The JPL Roadmap for Deep Space Navigation,” in Advances in the Astronautical Sciences: Spaceflight Mechanics 2006, Vol. 124, edited by S. R. Vadali, et al., Univelt, San Diego, 2006, pp. 1925-1932. Also AAS Paper 06-223, AAS/AIAA Spaceflight Mechanics Meeting, Tampa, FL, Jan. 2006.

Wood, L. J., “The Evolution of Deep Space Navigation: 1962-1989,” in Advances in the Astronautical Sciences: Guidance and Control 2008, Vol. 131, edited by M. E. Drews and R. D. Culp, Univelt, San Diego, 2008, pp. 285-308. Also Paper 08-051, 31st Annual AAS Guidance and Control Conference, Breckenridge, CO, Feb. 2008.

Wood, L. J., “The Evolution of Deep Space Navigation: 1989-1999,” in Advances in the Astronautical Sciences: The F. Landis Markley Astronautics Symposium, Vol. 132, edited by J. L. Crassidis, et al., Univelt, San Diego, 2008, pp. 877-898. Also Paper 08-311, AAS F. Landis Markley Astronautics Symposium, Cambridge, MD, June-July 2008.

Wood, L. J., “Contributions of the Students of Professor George H. Born to the Guidance, Navigation, and Control Section of the Jet Propulsion Laboratory,” AAS George H. Born Symposium, Boulder, CO, May 2010.

Wood, L. J., Bhaskaran, S., Border, J. S., Byrnes, D. V., Cangahuala, L. A., Ely, T. A., Folkner, W. M., Naudet, C. J., Owen, W. M., Riedel, J. E., Sims, J. A., and Wilson, R. S., “Navigation and Mission Design Technologies for Future Planetary Science Missions,” in Advances in the Astronautical Sciences: Guidance and Control 2013, Vol. 149, edited by L. R. Hardaway, Univelt, San Diego, 2013, pp. 577-597. Also Paper 13-086, 36th Annual AAS Guidance and Control Conference, Breckenridge, CO, Feb. 2013.

Cesarone, R., Cheung, K.-M., Biswas, A., Gao, J. L., Lau, C.-W., Lee, C. H., Pham, T. T., and Wood, L. J., “Advanced Communications, Navigation and Technology Concepts for a Mars 2018 Orbiter,” Paper 4.0102, Proceedings of the 2013 IEEE Aerospace Conference, Big Sky, MT, Mar. 2013, pp. 936-947. doi:10.1109/AERO.2013.6497335

Beauchamp, P. M., Cutts, J. A., Quadrelli, M. B., Wood, L. J., Riedel, J. E., McHenry, M. C., Aung, M., Cangahuala, L. A., and Volpe, R. A., “Guidance, Navigation, and Control Technology Assessment for Future Planetary Science Missions,” Paper 2013-5411, AIAA SPACE 2013 Conference and Exposition, San Diego, CA, Sept. 2013. doi:10.2514/6.2013-5411*

Wood, L. J., “The Evolution of Deep Space Navigation: 1999-2004,” in Advances in the Astronautical Sciences: Spaceflight Mechanics 2014, Vol. 152, Part I, edited by R. S. Wilson, R. Zanetti, D. L. Mackison, and O. Abdelkhalik, Univelt, San Diego, 2014, pp. 827-847. Also Paper AAS 14-255, 24th AAS/AIAA Spaceflight Mechanics Meeting, Santa Fe, NM, Jan. 2014.

Wood, L. J., “The Evolution of Deep Space Navigation: 2004-2006,” in Advances in the Astronautical Sciences: Spaceflight Mechanics 2017, Vol. 160, Part IV, edited by J. W. McMahon, Y. Guo, F. A. Leve, and J. A. Sims, Univelt, San Diego, 2017, pp. 3271-3292. Also Paper AAS 17-325, 27th AAS/AIAA Space Flight Mechanics Meeting, San Antonio, TX, Feb. 2017.

Stuart, J., and Wood, L., “SmallSat Navigation via the Deep Space Network: Lunar Transport,” Paper IAC-17.B4.3.12, 68th International Astronautical Congress, Adelaide, Australia, Sep. 2017.

Wood, L. J., “The Evolution of Deep Space Navigation: 2006-2009,” in Advances in the Astronautical Sciences: Astrodynamics 2018, Vol. 167, Part IV, edited by P. Singla, R. M. Weisman, B. G. Marchand, and B. A. Jones, Univelt, San Diego, 2019, pp. 2985-3006. Also Paper AAS 18-226, AAS/AIAA Astrodynamics Specialist Conference, Snowbird, UT, Aug. 2018.

Stuart, J. R., and Wood, L. J., “SmallSat Navigation via the Deep Space Network: Inner Solar System Missions,” in Advances in the Astronautical Sciences: Astrodynamics 2018, Vol. 167, Part III, edited by P. Singla, R. M. Weisman, B. G. Marchand, and B. A. Jones, Univelt, San Diego, 2019, pp. 2027-2050. Also Paper AAS 18-249, AAS/AIAA Astrodynamics Specialist Conference, Snowbird, UT, Aug. 2018.

Wood, L. J., “The Evolution of Deep Space Navigation: 2009-2012,” in Advances in the Astronautical Sciences: Astrodynamics 2019, Vol. 171, Part I, edited by K. R. Horneman, C. Scott, B. W. Hansen, and I. I. Hussein, Univelt, San Diego, 2020, pp. 227-248. Also Paper AAS 19-655, AAS/AIAA Astrodynamics Specialist Conference, Portland, ME, Aug. 2019.

Wood, L. J., “The Evolution of Deep Space Navigation: 2012-2014,” in Advances in the Astronautical Sciences: Astrodynamics 2020, Vol. 175, Part III, edited by R. S. Wilson, J. Shan, K. C. Howell, and F. R. Hoots, Univelt, San Diego, 2021, pp. 2407-2428. Also Paper AAS 20-447, AAS/AIAA Astrodynamics Specialist Conference, virtual, Aug. 2020.

Wood, L. J., “The Evolution of Deep Space Navigation: 2014-2016,” in Advances in the Astronautical Sciences: Spaceflight Mechanics 2021, Vol. 176, Part I, edited by C. Frueh, R. Zanetti, J. R. Stuart, and A. L. Bowes, Univelt, San Diego, 2022, pp. 1061-1080. Also Paper AAS 21-211, 31st AAS/AIAA Space Flight Mechanics Meeting, virtual, Feb. 2021.

Wood, L. J., “The Evolution of Deep Space Navigation: 2016-2018,” in Advances in the Astronautical Sciences: Astrodynamics 2021, Vol. 177, Part III, edited by P. F. Thompson, C. A. McLaughlin, D. C. Davis, and M. J. Holzinger, Univelt, San Diego, 2022, pp. 2549-2568. Also Paper AAS 21-550, AAS/AIAA Astrodynamics Specialist Conference, virtual, Aug. 2021.

Wood, L. J., “The Evolution of Deep Space Navigation: 2018-2020,” Paper AAS 23-254, AAS/AIAA Astrodynamics Specialist Conference, Big Sky, MT, Aug. 2023.

* Revised paper subsequently published in journal

Books Edited

Advances in the Astronautical Sciences: Spaceflight Mechanics 1993, Vol. 82, ed. R. G. Melton, L. J. Wood, R. C. Thompson, and S. J. Kerridge, Univelt, San Diego, 1993.

External Reports

Wood, L. J., Bhaskaran, S., Border, J. S., Byrnes, D. V., Cangahuala, L. A., Ely, T. A., Folkner, W. M., Naudet, C. J., Owen, W. M., Riedel, J. E., Sims, J. A., Wilson, R. S., Beauchamp, P. M., Cutts, J. A., Guo, Y., Dankanich, J. W., Scheeres, D. J., and Folta, D. C., Guidance, Navigation, and Control Technology Assessment for Future Planetary Science Missions: Part I. Onboard and Ground Navigation and Mission Design, Jet Propulsion Laboratory Report No. JPL D-75394, Oct. 2012.

Wood, L. J., Anderson, R. L., Bhaskaran, S., Ely, T. A., Gerasimatos, D. V., Gustafson, E. D., Lam, T., Naudet, C. J., Park, R. S., Riedel, J. E., Sims, J. A., Wilson, R. S., Beauchamp, P. M., Cutts, J. A., Guo, Y., Folta, D. C.; Gramling, C. J., Guidance, Navigation, and Control Technology Assessment for Future Planetary Science Missions: Part I. Onboard and Ground Navigation and Mission Design, Jet Propulsion Laboratory Report No. JPL D-109704, Feb. 2023.