Lohan, K. and Putnam, Z.R., "Survey of X-ray Pulsar Navigation Technology," IEEE Transactions on Aerospace and Electronic Systems, in press, accepted Feb. 2021.
Articles in Conference Proceedings
Putnam, Z. R. and Braun, R. D., "Analytical Assessment of Drag-Modulation Trajectory Control for Planetary Entry," AAS Paper 15-748, AAS Astrodynamics Specialist Conference, Vail, CO, Aug. 2015.
Putnam, Z. R. and Braun, R. D., "Advances in Guidance, Navigation, and Control for Planetary Entry, Descent, and Landing Systems," AAS Paper 16-092, AAS Guidance and Control Conference, Breckenridge, CO, Feb. 5-10, 2016.
Lohan, K. G. and Putnam, Z. R., "Moving-Mass Actuator System Options For Entry Vehicles with Deployable Decelerators," AAS Paper 16-373, AAS Spaceflight Mechanics Meeting, Napa, CA, Feb. 14-18, 2016.
Lohan, K. G. and Putnam, Z. R., "Moving Mass Actuator Control for Mars Entry Vehicles," AAS Paper 17-134, AAS Guidance and Control Conference, Breckenridge, CO, Feb. 3-8, 2017.
Sepulveda, J. and Putnam, Z. R., "An Assessment of Aerodynamic Flaps for Planetary Entry Trajectory Control," AAS Paper 17-035, AAS Guidance and Control Conference, Breckenridge, CO, Feb. 3-8, 2017.
Falcone, G., Williams, J. and Putnam, Z.R., "Small Satellite Drag-Modulation Aerocapture Mission Design Options for Mars Small Satellites," AAS 18-052, AAS Guidance and Control Conference, Breckenridge, CO, Feb. 2-7, 2018.
Wolf, A., Noyes, C., Strauss, W., Benito, J., Lobbia, M., McCann, J., Nakazono, B., Putnam, Z. R., and Lorenz, C. G., "Supersonic Retropropulsion on Mars Landers: Selected Design Trades," AAS Paper 18-486, AIAA/AAS Astrodynamics Specialist Conference, Snowbird, UT, August 19-23, 2018.
Zinner, E. and Putnam, Z.R., "Parking Orbit Selection for Mars Aerocapture-Entry Systems," AAS 19-463, AAS Spaceflight Mechanics Meeting, Maui, HI, Jan. 2019.
Lohan, K. and Putnam, Z.R., "Characterization of Candidate Vehicle States for XNAV Systems," AAS 19-645, AAS Astrodynamics Specialist Conference, Portland, ME, Aug. 2019.
Falcone, G. and Putnam, Z.R., "Aerobraking Trajectory Control Using Articulated Solar Panels ," AAS 19-682, AAS Astrodynamics Specialist Conference, Portland, ME, Aug. 2019.
Williams, J. W., Gray, M.I., and Putnam, Z.R., "Vehicle and Mission Design Options for Very Low Earth Orbit CubeSats," AAS 19-860, AAS Astrodynamics Specialist Conference, Portland, ME, Aug. 2019.
Falcone, G. and Putnam, Z. R., "Closed-Form Trajectory Solution for Shallow, High-Altitude Atmospheric Flight," AAS 20-448, 2020 AAS Astrodynamics Specialist Conference, Remote, Aug. 2020.
Engel, D., Dutta, S., and Putnam, Z.R., "Numerical Predictor-Corrector Based Guidance Scheme for Aero-Gravity Assist at Titan for Enceladus Missions," AAS 21-201, AAS Spaceflight Mechanics Meeting, Charlotte, NC, 2021.
Hou, L., Lohan, K., and Putnam, Z.R., "Comparison and Error Modeling of Velocity-Based Initial Orbit Determination Algorithms," AAS 21-280, AAS Spaceflight Mechanics Meeting, Charlotte, NC, 2021.