Associate Professor of Aerospace Engineering
Aerospace Engineering Department
Daytona College of Engineering
Daytona Beach campus

Office Hours

MW: 9:30 - 11:00, M: 14:30 - 15:30

Areas of Expertise

Spacecraft attitude dynamics and control; orbital mechanics; space mission and systems design; control system design & analysis for aerospace vehicles

Dr. Udrea was born and raised in Romania. He graduated in Aerospace Engineering from the Polytechnic Institute of Bucharest in 1990. He worked in the industry in Romania until immigrating to Canada and settling in Vancouver, BC, where he continued his career as an aerospace engineer. In 1994 he was admitted into the Ph.D. program at the University of Washington, Seattle, WA. For his Ph.D. he performed research in computational plasma physics with application to lab plasmas, such as in nuclear fusion machines and thrusters. He graduated in 1999 and worked as a postdoc at Mississippi State Univ./NSF Engineering Research Center(ERC) for Computational Field Simulation.

Dr. Udrea decided to pursue research in spacecraft control. From 2000 to 2003 he performed research in multi-spacecraft dynamics and control as a postdoc at the Univ. of Washington. During his postdoc he also taught Orbital Mechanics and Spacecraft Design at the UW Aero and Astro Dept.

In 2003 he moved to The Netherlands to take up a post as a Navigation and Control Systems Engineer with the European Space Agency. He worked on formation flying spacecraft, planetary exploration, and was part of ESA's concurrent design team working on advanced Solar System exploration projects.

Because he missed the academic life and the challenges of teaching he decided to pursue an academic career. He joined the ranks of the Aerospace Engineering Jan. 2007 he is an Assistant Prof. at the ERAU's Department Aerospace Engineering. His teaching and research interests are in spacecraft guidance navigation and control and space systems and mission design.


  • Ph.D. - Doctor of Philosophy in Aeronautics and Astronautics, University of Washington

  • AE 427: Spacecraft Preliminary Design
  • AE 523: Model & Sim of Linear Dyn Sys
  • AE 700: Thesis
  • AE 800: Dissertation

AE313 - Space Mechanics
AE427 - Spacecraft Preliminary Design
AE432 - Aircraft Dynamics and Control
AE434 - Spacecraft Control
AE445 - Spacecraft Detailed Design
AE595P - Linear Systems Theory


Bailey J., Benkabbou H., Clemence M., Fredrickson M., Masotti J., Marie K., Musholt T., Udrea, B., "Water Electrolysis Testing for On-Demand Space Propellant Depot Design," 1st Annual ISS Research and Development Conference, Jun. 26 - 27, Denver, CO

Marsella, B., Udrea, B., Patel, P., Anderson, P., "Imaging LIDAR Mapping of an Asteroid for Autonomous Operations," AAS 12-221, AAS/AIAA Space Flight Mechanics Meeting, Jan. 29 - Feb. 2, Charleston, SC

Patel, P., Udrea, B., Fredrickson, M., Anderson, P., "Sensitivity Analysis of the Touchdown Footprint at (101955) 1999 RQ36," AAS 12-222, AAS/AIAA Space Flight Mechanics Meeting, Jan. 29 - Feb. 2, Charleston, SC

Nayak, M.V., Udrea, B., "Validation and Application of a Preliminary Target Selection Algorithm for the Design of a NEA Hopping Mission," AAS 12-228, AAS/AIAA Space Flight Mechanics Meeting, Jan. 29 - Feb 2, Charleston, SC

Herrero, F., Udrea, B., Fanelli, K., Armstrong, D., et al., "Preliminary Design of a Mini-Satellite for Drag Estimation (MinDE)," AAS 12-259, AAS/AIAA Space Flight Mechanics Meeting, Jan. 29 - Feb 2, Charleston, SC

Anderson, P., Udrea, B., "Validation of a Finite Sphere Gravitation Model with Applications to Comet 67P/Churyumov-Gerasimenko," AAS 11-406, AAS/AIAA Astrodynamics Specialist Conf. Jul. 31 - Aug. 4, 2011, Girdwood, AK

Parv, P., Phillips, R., Udrea, B., "Small-Body Gravity Field Approximation Methods," AAS 11-448, AAS/AIAA Astrodynamics Specialist Conf. Jul. 31 - Aug. 4, 2011, Girdwood, AK

Fanelli, K., Udrea, B., "Mini-satellite for Drag Estimation (MinDE): A Satellite as a Sensor System," AAS 11 - 611, AAS/AIAA Astrodynamics Specialist Conf. Jul. 31 - Aug. 4, 2011, Girdwood, AK

Udrea, B., et. al. "Dipping Thermospheric Explorer CubeSat," American Geo- physical Union Fall Meet, Dec. 14-18, 2009, San Francisco, CA

Udrea, B., Huang, A., Cosgrove, R., Doe, R., Malsbury, J., "Micro-Propulsion System of a Thermospheric Explorer CubeSat," ASME 2009 International Mechanical Engineering Congress and Expo, Nov. 13-19, 2009, Lake Buena Vista, FL

Udrea, B., Decoust, C., "Algorithm for Relative Navigation Between Two Spacecraft," AIAA Guidance, Navigation and Control Conf., Aug. 2008, Honolulu, HI

Dumitriu, D., Marques, S., Lima, P., Bastante, J., Araujo, J., Penin, L., Caramagno, A., Udrea, B., "Optimal Guidance and Decentralised State Estimation Applied to a Formation Flying Demonstration Mission in GTO," IET Control Theory & Applications (formerly IEE Proceedings Control Theory & Applications), Special Issue on Formation Flying - ed. Mario Garcia Sanz, vol. 1, nr. 2, pp. 532-544, Mar. 2007.

Chabot, T., Udrea, B., "XEUS Mission GNC Design and Analysis," AIAA Guidance, Navigation and Control Conf., Aug. 2006, Keystone, CO

Landgraf, M., Thiele, G., Koschny, D., and Udrea, B., "Optical Navigation for Lunar Exploration Missions," 57th International Astronautical Congress, IAC Paper IAC-06-C.1.7.5, 2-6 Oct. 2006, Valencia, Spain

Dumitriu, D., Marques, S., Lima, P., Udrea, B., "Decentralized Low-Communication State Estimation and Optimal Guidance of Formation Flying Spacecraft," AAS/AIAA Space Flight Mechanics Meeting, Jan. 2006, Tampa, FL

Bastante, J., Caramagno, A., Penin, L., Araujo, J., Udrea, B., \Optimal Guidance for a Formation Flying Demonstration Mission in GTO," AIAA Guidance, Navigation and Control Conf., Aug. 2005, San Francisco, CA

Dumitriu, D., Udrea, B., Lima, P., "Optimal Trajectory Planning of Formation Flying Spacecraft," 16th IFAC World Congress, Jun. 2005 Prague, The Czech Republic

Charbonnel, C., Pirson, L., Ankersen, F., Udrea, B., \Accurate Modes Design of a DARWIN Precursor Formation Flying Demo Mission" 16th IFAC Symposium on Automatic Control in Aerospace, Jun. 2004, Sankt Petersburg, Russia

Udrea, B., et al.WOBBLE: A Mission to Characterize Past and Present Water on Mars," 53rd International Astronautical Congress/World Space Congress, Houston TX, Oct. 2002

Campbell, M., Udrea, B., "Collision Avoidance in Satellite Clusters," American Control Conference, Anchorage, AK, May 2002

Mueller, J. B., Surka, D. M., Udrea, B., "Agent Based Control of Multiple Satellite Formation Flying," 6th International Symposium on Arti cial Intelligence, Robotics and Automation in Space, Montreal, Quebec, Jun. 2001

Shumlak, U., Udrea, B., "An Approximate Riemann Solver for MHD Computations on Parallel Architectures," 15th AIAA Computational Fluid Dynamics Conference, Anaheim, CA, Jun. 2001

Udrea, B., Shumlak, U., "Numerical Study of a Magnetocumulative Generator", 25th IEEE International Conference on Plasma Science Meeting, Raleigh, NC, Jun. 1998

Shumlak, U., Udrea, B., "A Finite Volume Implementation of an Approximate Riemann Solver for MHD", 25th IEEE International Conference on Plasma Science Meeting, Raleigh, NC, Jun. 1998

Udrea, B., Shumlak, U., "Nonlinear Study of Spheromak Tilt Instability", AIAA paper 98-0995, American Institute of Aeronautics and Astronautics 36th Aerospace Sciences Meeting and Exhibit, Reno. NV, Jan. 1998

Udrea, B. , Shumlak, U., Jones, O.S., Eberhardt, S.D., "A Portable Parallel Implicit Riemann Solver for Non-Ideal MHD", AIAA paper 97-0366, American Institute of Aeronautics and Astronautics 35th Aerospace Sciences Meeting and Exhibit, Reno, NV, Jan. 1997

B.A. Nelson, T. R. Jarboe, R. Ewig, C. Ho man, A.K. Martin, K. McCollam, D.J. Orvis,U. Shumlak and B. Udrea, "Results from the HIT II coaxial Helicity Injection Spherical Tokamak", 24th IEEE International Conference On Plasma Science Meeting, San Diego, CA, Jun. 1997

Udrea, B., Shumlak, U., Jones, O. S., "Computer Simulation of Plasma Accelerators", 38th Annual APS Division of Plasma Physics Meeting, Denver, CO, Nov. 1996

Aerospace Engineering Department, Embry-Riddle Aeronautical University,  Daytona Beach, FL
Assistant Professor, Jan. 2007 - present

Courses taught: Orbital Mechanics (junior), Spacecraft Control (senior), Preliminary and Detailed Spacecraft Design (senior), Aircraft Dynamics and Control (senior), Linear Systems Theory (graduate). Research: Spacecraft dynamics and control, space systems design.

European Space Agency, Noordwijk, The Netherlands
Guidance and Navigation Systems Engineer, Feb. 2003 - Dec. 2006

Worked on spacecraft guidance, control, and navigation algorihtms with emphasis on multi-spacecraft missions and solar system exploration missions. Advised engineering interns. Participated as GNC expert in the mission design studies in the Concurrent Design Facility (equivalent of JPL's Team X.) Maintained and managed a multiprocessor real-time testbed based on dSPACE modules. Wrote and issued requests for proposals, evaluated proposals, and monitored contracts. Managed academic and industrial contracts as "Technical Officer."

Earth and Space Sciences Department, University of Washington, Seattle, WA
Research Associate (postdoc) Sep. 2002 - Jan. 2003

Set up of a parallel computer simulation for the study of the magnetosphere of Jupiter. Assisted with the implementation of the codes on a Beowulf parallel  computer cluster.

Aero and Astro Department, University of Washington, Seattle, WA
Research Associate (postdoc), Mar. 2000 - Aug. 2002

Developed and implemented trajectory planning and collision detection and avoidance algorithms. Simulated and analyzed formation  flying spacecraft for Earth radar imaging. Developed Matlab and C/C++ software for multi-agent, distributed artificial intelligence flight software.

Thesis Advisement

Shaun Deacon -     M.Sc. 2007 - "Development, Verification, and Applications of a 3-DoF Entry and Descent Simulation Tool"
Camille Decoust -  M.Sc. 2008 - "Attitude Determination Using an Imaging LIDAR"
Mathieu Naslin -    M.Sc. 2009 - "Design of an Attitude Determination Subsystem for Nanosatellites"
Spencer Fuller -     M.Sc. 2011 - "Hydrostatic Pressure Testing of a Square Cross-section Stainless Steel Propellant Tank Manufactured using Selective Laser Sintering"
Michael Scheppa - M.Sc. 2011 - "Preliminary Design of an Asteroid Hopping Mission"

Dissertation rapporteur for Candidate Sonia Marques, Ph.D. 2008, of the Instituto Superior Tcnico, Lisbon, Portugal

Professional Development

Kalman Filtering: Theory and Applications, UCLA Extension, May 2011, Los Angeles, CA
Robust Control: Toolbox, Theory, and Applications, UCLA Extension, Oct. 2009, Los Angeles, CA

JPL Summer Faculty Fellow, NASA JPL 343H, Jun. - Aug. 2010

Professional Membership

American Astronautical Society
American Geophysical Union