Applied Defense Solutions provides engineering analyses, custom integration services, and training to a wide-variety of organizations, leveraging our experience in COTS technology to meet our customers’ specific needs. The engineers at ADS often publish the results of their work in academic and industry journals. Below you will find white papers and research on issues related to orbit determination, mission simulations, satellite trajectories, and more.

YearADS Author(s)Title
2016Islam I. Hussein, C.W.T. RoscoeI. I. Hussein, C. W. T. Roscoe, P. W. Schumacher, Jr., and M. P. Wilkins, “UCT Correlation using the Bhattacharyya Divergence”, Proceedings of the 26th AAS/AIAA Space Flight Mechanics Meeting, Napa, CA, February 14–18 2016.
2016C.W.T. Roscoe, Matthew P. Wilkins, Islam I. HusseinC. W. T. Roscoe, M. P. Wilkins, I. I. Hussein, and P. W. Schumacher, Jr., “Uncertain Angles-Only Track Initiation for SSA using Different IOD Methods” ,Proceedings of the 26th AAS/AIAA Space Flight Mechanics Meeting, Napa, CA, February 14–18 2016, Paper AAS 16-207.
2016C.W.T Roscoe, Jason J. Westphal, Robert T. MacMillanC. W. T. Roscoe, J. J. Westphal, and R. T. MacMillan, “Reuseable Bird’s-Eye View for On-Orbit Satellite Servicing Using CubeSats”, Proceedings of the 39th AAS Guidance, Navigation, and Control Conference, Breckenridge, CO, February 5–10 2016, Paper AAS 16-046.
2015Islam I. Hussein, Christopher W.T. Roscoe, Matthew P. WilkinsI. I. Hussein, C. W. T. Roscoe, M. P. Wilkins, and P. W. Schumacher, Jr. “Track-to-Track Association Using Bhattacharyya Divergence,” Advanced Maui Optical and Space Surveillance Technologies Conference, Wailea, HI, September 15–18 2015. [C15]
2015Christopher W.T. Roscoe, Islam I. Hussein, Matthew P. WilkinsC. W. T. Roscoe, I. I. Hussein, M. P. Wilkins, and P. W. Schumacher, Jr. “The Probabilistic Admissible Region with Additional Constraints,” AAS/AIAA Astrodynamics Specialist Conference, Vail, CO, August 9–13 2015. [C12]
2015Islam I. Hussein, Christopher W.T. Roscoe, Matthew P. WilkinsI. I. Hussein, C. W. T. Roscoe, M. P. Wilkins, and P. W. Schumacher, Jr. “Track-to-Track Association Using Information Theoretic Criteria,” AAS/AIAA Astrodynamics Specialist Conference, Vail, CO, August 9–13 2015. [C13]
2015Christopher W.T. Roscoe, Jason J. WestphalC. W. T. Roscoe, J. J. Westphal, C. T. Shelton, and J. A. Bowen “CubeSat Proximity Operations Demonstration (CPOD) Mission: End-to-End Integration and Mission Simulation Testing,” Proceedings of the AAS/AIAA Astrodynamics Specialist Conference, Vail, CO, August 9–13 2015, Paper AAS 15-720. [C8]
2015M.P. WilkinsRuttenberg, B., Wilkins, M. P., Pfeffer, A., "Reasoning on resident space object hierarchies using probabilistic programming". Proceedings of the 2015 18th International Conference on Information Fusion, Washington, D.C., July 6-9, 2015, 1315-1321.
2015Christopher W.T. Roscoe, Jason J. Westphal, Stephen LutzC. W. T. Roscoe, J. J. Westphal, S. Lutz, and T. Bennett “Guidance, Navigation, and Control Algorithms for CubeSat Formation Flying,” Advances in the Astronautical Sciences, Vol. 154, 2015, pp. 685–699. (Proceedings of the 38th AAS Guidance, Navigation, and Control Conference, Breckenridge, CO, January 30–February 4 2015, Paper AAS 15-113.) [C5]
2015John Carrico
A. Hawkins, A. Kam, and J. Carrico, “LADEE Maneuver Planning and Performance”, Proceedings of the 25th AAS/AIAA Space Flight Mechanics Meeting, Williamsburg, VA, January 11-15 2015. Paper AAS-15-453.
2015Lisa Policastri, John P. Carrico Jr., Craig Nickel, Ryan Lebois, Ryan Sherman
L. Policastri, J.P. Carrico Jr., C. Nickel, A. Kam, R. Lebois, and R. Sherman, “Orbit Determination and Acquisition for LADEE and LLCD Mission Operations”, Proceedings of the 25th AAS/AIAA Space Flight Mechanics Meeting, Williamsburg, VA, January 11-15 2015. Paper AAS-15-257.
2015Lisa Policastri
J. Woodburn, L. Policastri, and B. Owens, “Generation of Simulated Tracking Data for LADEE Operational Readiness Testing”, Proceedings of the 25th AAS/AIAA Space Flight Mechanics Meeting, Williamsburg, VA, January 11-15 2015. Paper AAS-15-381.
2015Craig Nickel, Ryan Sherman
K. Galal, C. Nickel, and R. Sherman, “Attitude Design for the LADEE Mission”, Proceedings of the 25th AAS/AIAA Space Flight Mechanics Meeting, Williamsburg, VA, January 11-15 2015. Paper AAS-15-270.
2015Lisa Policastri, John P. Carrico Jr., Craig NickelL. Policastri, J.P. Carrico Jr., and C. Nickel, “Pre-Launch Orbit Determination Design and Analysis for the LADEE Mission”, Proceedings of the 25th AAS/AIAA Space Flight Mechanics Meeting, Williamsburg, VA, January 11-15 2015. Paper AAS-15-230.
2015Craig Nickel, John P. Carrico Jr., Ryan Lebois, Lisa Policastri, Ryan ShermanC. Nickel, J.P. Carrico Jr., R. Lebois, L. Policastri, and R. Sherman, “LADEE Flight Dynamics System Overview”, Proceedings of the 25th AAS/AIAA Space Flight Mechanics Meeting, Williamsburg, VA, January 11-15 2015. Paper AAS-15-419.
2015Lisa Policastri, John Carrico Jr., Craig Nickel, Ryan Lebois, Ryan ShermanA. Kam, L. Plice, K. Galal, A. Hawkins, L. Policastri, M. Loucks, J. Carrico Jr., C. Nickel, R. Lebois, and R. Sherman, “LADEE Flight Dynamics: Overview of Mission Design and Operations”, Proceedings of the 25th AAS/AIAA Space Flight Mechanics Meeting, Williamsburg, VA, January 11-15 2015. Paper AAS-15-212.
2015Islam I. Hussein, Matthew P. Wilkins, Christopher W. T. Roscoe I. I. Hussein, M. P. Wilkins, C. W. T. Roscoe, and P. W. Schumacher, Jr. “On Mutual Information for Observation-to-Observation Association,” 25th AAS/AIAA Space Flight Mechanics Meeting, Williamsburg, VA, January 11–15 2015. [C11]
2014Islam I. Hussein, Christopher W. T. Roscoe, Matthew P. WilkinsI. I. Hussein, C. W. T. Roscoe, M. P. Wilkins, and P. W. Schumacher, Jr. “Information Theoretic Criteria for Observation-to-Observation Association,” Advanced Maui Optical and Space Surveillance Technologies Conference, Wailea, HI, September 9–12 2014. [C10]
2014M.P. WilkinsWilkins, M. P., Schumacher, P. W., Jah, M. K., “Implications of Hierarchies for RSO Recognition, Identification, and Characterization” , 2014 AIAA Space Conference, AIAA-2014-4368, San Diego, CA, August 4-7, 2014.
2014Islam I. Hussein, Christopher W.T. Roscoe, Matthew P. WilkinsI. I. Hussein, C. W. T. Roscoe, P. W. Schumacher, Jr., and M. P. Wilkins. “Probabilistic Admissible Region for Short-Arc Angles-Only Observations,” Advanced Maui Optical and Space Surveillance Technologies Conference, Wailea, HI, September 9–12 2014. [C9]
2014M.P. WilkinsRuttenberg, B., Wilkins, M. P., Pfeffer, A. "Hierarchical Reasoning with Probabilistic Programming," Proceedings of the Twenty-Eighth AAAI Conference on Artificial Intelligence, Quebec City, Quebec, Canada, July 27-31, 2014.
2014Christopher W.T. Roscoe, Islam I. Hussein, M.P. WilkinsC. W. T. Roscoe, I. I. Hussein, P. W. Schumacher, Jr., and M. P. Wilkins. “On Uncertain Angles-Only Track Initiation for SSA,” AIAA/AAS Astrodynamics Specialist Conference, San Diego, CA, August 4–7 2014. [C8]
2014Joseph GerberLt. Col. A. G. Roesener; J. D. Gerber. Analyzing Potential Over-The-Horizon Radar Site Locations
2014Joseph D. Gerber, Jacob D. GriesbachJ. D. Gerber, J. D. Griesbach, A. F. Wind. Impacts of Wind Turbine Farm Obscurations on Aircraft
Escort Probability of Success
, 2014 IEEE Radar Conference.
2014I. I. Hussein, C. W. T. Roscoe, M. P. WilkinsI. I. Hussein, C. W. T. Roscoe, M. P. Wilkins, and P. W. Schumacher, Jr.,"
Probabilistic Admissibility in Angles-Only Initial Orbit Determination
, International Symposium on Space Flight Dynamics, Laurel, MD, May 5–9 2014
2014Christopher W.T. Roscoe, Jason J. Westphal, Jacob D. Griesbach, Hanspeter SchaubC. W. T. Roscoe, J. J. Westphal, J. D. Griesbach, H. Schaub, . "
Formation Establishment and Reconfiguration Using Differential Elements in J2-Perturbed Orbits
, IEEE Aerospace Conference, Big Sky, MT, March 1–8 2014
2014I.I. HusseinHussein, Islam, Richard Erwin, et al. "Stochastic Optimization for Sensor Allocation Using
AEGIS-FISST
, "24th AAS/AIAA Space Flight Mechanics Meeting, Santa Fe, NM, January 26 – 30, 2014
2013Dr. Jacob D. Griesbach, Kyle Nave, Thomas MannDr. Jacob D. Griesbach, Kyle Nave, and Thomas Mann, "Spacecraft Design Tool for Plug-N-Play Satellite Simulation and Test Bypass Control, " 36th Annual AAS Guidance and Control Conference, Breckenridge, Colorado, February 1 - 6, 2013
2013M. P. Wilkins, C. W. T. RoscoeP. W. Schumacher, Jr., M. P. Wilkins, and C. W. T. Roscoe, "PARALLEL ALGORITHM FOR TRACK INITIATION FOR OPTICAL SPACE SURVEILLANCE,” 6th European Conference on Space Debris, Darmstadt, Germany, April 22–25 2013
2013C. W. T. Roscoe, M. P. WilkinsC. W. T. Roscoe, P. W. Schumacher, Jr., and M. P. Wilkins, “PARALLEL TRACK INITIATION FOR OPTICAL SPACE SURVEILLANCE USING RANGE AND RANGE-RATE BOUNDS,” AAS/AIAA Astrodynamics Specialist Conference, Hilton Head, SC, August 11–15 2013
2013C. W. T. Roscoe, J. D. Griesbach, J. J. Westphal, D. R. Hawes, and J. P. Carrico, Jr.C. W. T. Roscoe, J. D. Griesbach, J. J. Westphal, D. R. Hawes, and J. P. Carrico, Jr., “Force Modeling and State Propagation for Navigation and Maneuver Planning for CubeSat Rendezvous, Proximity Operations, and Docking,” AAS/AIAA Astrodynamics Specialist Conference, Hilton Head, SC, August 11–15 2013
2013M.P. WilkinsWilkins, M. P., Pfeffer, A., Schumacher, P. W., and Jah, M. K., "Towards an Artificial Space Object Taxonomy" , in Proceedings of the 2013 AMOS Technical Conference, Wailea, HI, September 2013.
2013Jacob D. Griesbach, Jason J. Westphal, Christopher W. T. Roscoe, Joseph A. Smugeresky, Dean R. Hawes, John P. Carrico, Jr.
J. D. Griesbach, J. J. Westphal, C. W. T. Roscoe, J. A. Smugeresky, D. R. Hawes, and J. P. Carrico, Jr., “Proximity Operations Nano-Satellite Flight Demonstration (PONSFD) Rendezvous Proximity Operations Design and Trade Study Results,” Advanced Maui Optical and Space Surveillance Technologies Conference, Maui, HI, September 10–13 2013
2012Tim CraycheeThe Controlled Deorbit of a Commercial Spacecraft: Precise Maneuver Prediction through Calibration
2012Ryan Lebois, Lisa Policastri, John Carrico, Marissa IntelisanoExtended Mission Maneuver Operations for the Interstellar Boundary Explorer
2012Carrico et alFeasibility Analysis for a Manned Mars Free-Return Mission in 2018
2011John Carrico et al.LUNAR-RESONANT TRAJECTORY DESIGN FOR THE INTERSTELLAR BOUNDARY EXPLORER (IBEX) EXTENDED MISSION
2011Jacob GriesbachSIMULATING SPACE SURVEILLANCE NETWORKS
2011Timothy CraycheeA DESIGN METHOD FOR LOW ALTITUDE, NEAR-EQUATORIAL LUNAR ORBITS
2011Jacob GriesbachSEQUENTIAL ORBIT-ESTIMATION WITH SPARSE TRACKING
2011Timothy Craychee
MITIGATING POTENTIAL ORBIT DEBRIS: THE DEORBIT OF A COMMERICAL SPACECRAFT
2010John Carrico Jr.,
Lisa Policastri,
and Ryan Lebois
COVARIANCE ANALYSIS AND OPERATIONAL RESULTS FOR THE INTERSTELLAR BOUNDARY EXPLORER (IBEX)
2009John Carrico,Marco Concha, Timothy CraycheeTRAJECTORY DESIGN OPERATIONS FOR THE IBEX MISSION
2009John CarricoPRELAUNCH TRAJECTORY DESIGN AND ANALYSIS FOR THE IBEX MISSION
2009Timothy A. Craychee, John P. CarricoCORRELATING SPACECRAFT DEBRIS FROM VARIOUS TRACKING MEASUREMENTS
2009Lisa Policastri, John Carrico, Ryan LeboisFLIGHT DYNAMICS OPERATIONS FOR THE IBEX MISSION: THE FIRST SIX MONTHS
2009Lisa Policastri, John Carrico, Timothy CraycheeORBIT DETERMINATION OPERATIONS FOR THE INTERSTELLAR BOUNDARY EXPLORER
2009John Carrico, Lisa Policastri
EFFECT OF IBEX SPINNING ATTITUDE ON DOPPLER OBSERVATIONS
2008John Carrico, Lisa PolicastriINVESTIGATING ORBITAL DEBRIS EVENTS USING NUMERICAL METHODS WITH FULL FORCE MODEL ORBIT PROPAGATION
2007Timothy A. CraycheeComprehensive Navigation Analysis for UAVs Using COTS
2006John CarricoTIME CRITICAL TARGETING USING RESPONSIVE TACTICAL SATELLITES
2006John CarricoProximity Operations for Space Situational Awareness
2005John CarricoA COMPARISON OF LUNAR LANDING TRAJECTORY STRATEGIES USING NUMERICAL SIMULATIONS
2005Lisa PolicastriANALYTICAL EPHEMERIDES FOR THE SATELLITES OF NEPTUNE