Journal Papers

• Krause, M., Thrasher, A., Soni, P., Smego, L., Isaac, R., Nolan, J., Pledger, M., Lightsey, E.G., Ready, W.J., and Christian, J.A. | LONEStar: The Lunar Flashlight Optical Navigation Experiment | Journal of the Astronautical Sciences, Vol. 71, 2024.
• Christian, J.A. | Pole Estimation and Optical Navigation using Circle of Latitude Projections | Journal of Guidance, Control, and Dynamics, Vol. 47, No. 3, 2024, pp. 407-416.
• Henry, S.; Christian, J.A. | Analytical Methods in Triangulation-Based Celestial Localization | The Journal of the Astronautical Sciences, Vol. 70, 2023.
• Christian, J.A. | Initial Orbit Determination from Only Heading Measurements | Journal of Spacecraft and Rockets, Vol. 60, No. 4, 2023, pp. 1169-1175
• McKee, P.; Derksen, H.; Christian, J.A. | View Invariants for Three-Dimensional Points with Constrained Observer Motion | Journal of Guidance, Control, and Dynamics, Vol. 46, No. 2, 2023, pp. 277-285
• Henry, S.; Christian, J.A. | Absolute Triangulation Algorithms for Space Exploration | Journal of Guidance, Control, and Dynamics, Vol. 46, No. 1, 2023, pp. 21-46. | 2023
• McKee, P.; Nguyen, H.; Kudenov, M.W.; and Christian, J.A. | StarNAV with a wide field-of-view optical sensor | Acta Astronautica, Vol. 197, pp. 220-234 | August, 2022
• McKee, P.; Kowalski, J.; and Christian, J.A. | Navigation and Star Identification for an Interstellar Mission | Acta Astronautica, Vol. 192, pp. 390-401 | March, 2022
• Christian, J.A.; Derksen, H.; and Watkins, R. | Lunar Crater Identification in Digital Images | The Journal of the Astronautical Sciences, Vol. 68, 2021, pp. 1056-1144. | 2021
• Christian, J.A.; and Parker, W.E. | Initial Orbit Determination from Bearing and Range-Rate Measurements using the Orbital Hodograph | Journal of Guidance, Control, and Dynamics, Vol. 44, No. 2, 2021, pp. 370-378. | 2021
• Christian, J.A.; and Crassidis, J.L. | Star Identification and Attitude Determination with Projective Cameras | IEEE Access, Vol. 9, 2021, pp. 25,768-25,794. | 2021
• Christian, J.A. | A Tutorial on Horizon-Based Optical Navigation and Attitude Determination with Space Imaging Systems | IEEE Access, Vol. 9, 2021, pp. 19819-19853. | 2021
• Christian, J.A.; Hong, L.; McKee, P.; Christensen, R.; and Crain, T.P. | Image-Based Lunar Terrain Relative Navigation without a Map: Measurements | Journal of Spacecraft and Rockets, Vol. 58, No. 1, 2021, pp. 164-181. | 2021
• Ertl, C.; and Christian, J.A. | Identification of Partially Resolved Objects in Space Imagery with Convolutional Neural Networks | The Journal of the Astronautical Sciences, Vol. 67, 2020, pp. 1092-1115. | 2020
• Renshaw, D.T.; and Christian, J.A. | Subpixel Localization of Isolated Edges and Streaks in Digital Images | Journal of Imaging, Vol. 6, No. 5, 2020, 33. (20 pages) | 2020
• Hollenberg, C.; and Christian, J.A. | Geometric Solutions for Problems in Velocity-Based Orbit Determination | The Journal of the Astronautical Sciences, Vol. 67, 2020, pp 188-224. | 2020
• Liounis, A.; Christian, J.A.; and Robinson, S.B. | Observations on the Computation of Eigenvalue and Eigenvector Jacobians | Algorithms, Vol. 12, No. 12, 2019, 245. (21 pages) | 2019
• Christian, J.A. | StarNAV: Autonomous Optical Navigation of a Spacecraft by the Relativistic Perturbation of Starlight | Sensors, Vol. 19, No. 19, 2019, 4064. (61 pages; published in special issue managed by guest editor Dr. Daniele Mortari from Texas A&M University) | 2019
• Christian, J.A. | Autonomous Initial Orbit Determination with Optical Observations of Unknown Planetary Landmarks | Journal of Spacecraft and Rockets, Vol. 56, No. 1, 2019, pp. 211-220. | 2019
• Christian, J.A.; and Hollenberg, C. | Initial Orbit Determination from Three Velocity Vectors | Journal of Guidance, Control, and Dynamics, Vol. 42, No. 4, 2019, pp 894-899. | 2019
• Rhodes, A.; Christian, J.A.; and Evans, T. | A Concise Guide to Feature Histograms with Applications to LIDAR-Based Spacecraft Relative Navigation | The Journal of the Astronautical Sciences, Vol. 64, No. 4, 2017, pp 414-445. | 2017
• Christian, J.A. | Accurate Planetary Limb Localization for Image-Based Spacecraft Navigation | Journal of Spacecraft and Rockets, Vol. 54, No. 3, 2017, pp 708-730. | 2017
• Gioia, C.J.; and Christian, J.A. | Gyro Bias Estimation using Interior Star Angles for Manual Attitude Determination | Journal of Spacecraft and Rockets, Vol. 54, No. 2, 2017, pp 513-522. | 2017
• Christian, J.A. | Relative Navigation using Only Inter-Satellite Range Measurements | Journal of Spacecraft and Rockets, Vol. 54, No. 1, 2017, pp 13-28. | 2017
• Hikes, J.; Liounis, A.J.; and Christian, J.A. | Parametric Covariance Model for Horizon-Based Optical Navigation | Journal of Guidance, Control, and Dynamics, Vol. 40, No. 1, 2017, pp 170-178. | 2017
• Christian, J.A.; and Robinson, S.B. | Non-Iterative Horizon-Based Optical Navigation by Cholesky Factorization | Journal of Guidance, Control, and Dynamics, Vol. 39, No. 12, 2016, pp 2757-2765. | 2016
• Christian, J.A.; Benhacine, L.; Hikes, J.; and D’Souza, C. | Geometric Calibration of the Orion Optical Navigation Camera using Star Field Images | The Journal of the Astronautical Sciences, Vol. 63, No. 4, 2016, pp 335-353. | 2016
• Christian, J.A. | Optical Navigation using Iterative Horizon Reprojection | Journal of Guidance, Control, and Dynamics, Vol. 39, No. 5, 2016, pp 1092-1103. | 2016
• Woods, J.O.; and Christian, J.A. | LIDAR-Based Relative Navigation with Respect to Non-Cooperative Objects | Acta Astronautica, Vol. 126, 2016, pp 298-311. | 2016
• Liounis, A.; and Christian, J.A. | Techniques for Generating Analytic Covariance Expressions for Eigenvalues and Eigenvectors | IEEE Transactions on Signal Processing, Vol. 64, No. 7, 2016, pp 1808-1821. | 2016
• Woods, J.O.; and Christian, J.A. | GLIDAR: An OpenGL-based, Real-Time, and Open Source 3D Sensor Simulator for Testing Computer Vision Algorithms | Journal of Imaging, Vol. 2, No. 1, 2016. | 2016
• Robinson, S.B.; and Christian, J.A. | Pattern Design for 3D Point Matching | NAVIGATION: Journal of the Institute of Navigation, Vol. 62, No. 3, pp 189-203. | Fall 2015
• Ainscough, T.; Zanetti, R.; Christian, J.A.; and Spanos, P.D. | Q-Method Extended Kalman Filter | Journal of Guidance, Control, and Dynamics, Vol. 38, No. 4, 2015, pp 752-760. | 2015
• Christian, J.A. | Optical Navigation using Planet’s Centroid and Apparent Diameter in Image | Journal of Guidance, Control, and Dynamics, Vol. 38, No. 2, 2015, pp 192-204. | 2015
• Christian, J.A.; Robinson, S.B.; D’Souza, C.N.; and Ruiz, J.P. | Cooperative Relative Navigation of Spacecraft Using Flash Light Detection and Ranging Sensors | Journal of Guidance, Control, and Dynamics, Vol. 37, No. 2, 2014, pp 452-465. | 2014
• Christian, J.A. | Optical Attitude Determination from Horizon Orientation using Image Segmentation | Journal of Guidance, Control and Dynamics, Vol. 36, No. 1, 2013, pp 113-123. | 2013
• Christian, J.A.; and Lightsey, E.G | Onboard Image-Processing Algorithm for a Spacecraft Optical Navigation Sensor System | Journal of Spacecraft and Rockets, Vol. 49, No. 2, 2012, pp 337-352. | 2012
• Christian, J.A.; and Lightsey, E.G. | Sequential Optimal Attitude Recursion Filter | Journal of Guidance, Control, and Dynamics, Vol. 33, No. 6, 2010, pp 1787-1800. | 2010
• Christian, J.A.; and Lightsey, E.G. | Review of Options for Autonomous Cislunar Navigation | Journal of Spacecraft and Rockets, Vol. 46, No. 5, 2009, pp 1023-1036 | 2009
• Christian, J.A.; Wells, G.; Lafleur, J.; Verges, A.; Braun, R.D. | Extension of Traditional Entry, Descent, and Landing Technologies for Human Mars Exploration | Journal of Spacecraft and Rockets, Vol. 45, No. 1, 2008, pp 130-141 | 2008