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Welcome to the Space Systems Optimization Group at Georgia Tech!

The research in the Space Systems Optimization Group is in the areas of space systems and space logistics. Our research tackles complex space system design and mission analysis problems by developing new mathematical methods based on optimization and probabilistic modeling. Our contribution adds a new dimension of system-level modeling/optimization to the traditional space systems and astrodynamics research, with a goal to reduce the cost, time, and effort needed for the space mission design practice. The applications we explore include, but not limited to, (i) human space exploration campaigns, (ii) on-orbit servicing, assembly, and manufacturing (OSAM), and (iii) mega-scale satellite constellations.

Ph.D./PostDoc Positions Available:

We are currently looking for one or two Ph.D. students or PostDocs who have expertise in operations research/industrial engineering and are motivated to apply it to real-world space exploration problems. An ideal candidate would have a solid background in mathematical optimization and probabilistic modeling. Background in aerospace applications is preferred. Please feel free to contact Prof. Koki Ho (kokiho@nullgatech.edu) if you are interested.


Director: Prof. Koki Ho

Dr. Koki Ho is an assistant professor at the Daniel Guggenheim School of Aerospace Engineering of the Georgia Institute of Technology. Prior to that, Dr. Ho was an assistant professor at the University of Illinois at Urbana-Champaign (UIUC) and a visiting researcher at NASA Jet Propulsion Laboratory (Sep. – Dec., 2015). Dr. Ho is also the Chair of the AIAA Space Logistics Technical Committee. He is the recipient of the NASA Early Career Award (2019) and the DARPA Young Faculty Award (2019).

Dr. Ho received his Ph.D. degree in the Strategic Engineering Research Group at the Department of Aeronautics and Astronautics of the Massachusetts Institute of Technology (MIT) in 2015. Dr. Ho received his Bachelor’s and Master’s degrees in the Intelligent Space Systems Laboratory at the Department of Aeronautics and Astronautics of the University of Tokyo in 2009 and 2011 respectively.

Dr. Ho’s research interests bridge the areas of optimization and systems engineering for space logistics systems design and mission planning applications. His Ph.D. research developed a dynamic network optimization methodology for interplanetary supply chain management with the application cases for human Mars and Asteroid exploration. The developed method performs high-level lifecycle optimization of space mission sequences and finds an optimal space transportation architecture considering its technology tradeoffs over time. His recent research involves the development of optimization and modeling methods for space systems design and mission analysis applications.

Dr. Ho has multiple flight project experiences including a small satellite Nano-JASMINE at the University of Tokyo, and a mercury spacecraft Bepi-Colombo when he interned at Airbus Defense and Space (formerly EADS-Astrium) in Germany from September 2010 to March 2011.


News

February 2020: Our recent research proposal was selected for the NSF CAREER Award!

October 2019: Ph.D. Student, Hao Chen, received the Luigi G. Napolitano Award at the International Astronautical Congress! Congratulations!

September 2019: Our recent research proposal was selected for the NASA Early Career Faculty Award!

July 2019: Our recent research proposal was selected for the DARPA Young Faculty Award!

Summer 2019: Prof. Ho accepted an offer from Georgia Tech and moved the group to from Univ. of Illinois to Georgia Tech!

July 2019: A research publication by former graduate students Pauline Jakob aiming to model and optimize the spare strategy of large-scale satellite constellation in collaboration with Mitsubishi Electric Corporation is featured on AE Department News.

November 2018: Bindu Jagannatha successfully defended her Ph.D. dissertation! She will be the first Ph.D. from our group! Congratulations!

November 2018: A joint publication led by the United Launch Alliance on Commercial Lunar Propellant Architecture is published. Prof. Ho is one of the co-authors. The publication can be found here.

June 2018: A research publication by graduate students Hang Woon Lee and Pauline Jakob aiming to optimize the deployment strategy of large-scale satellite constellation in collaboration with Mitsubishi Electric Corporation is featured on AE Department News.

May 2018: Prof. Ho is selected for a NASA award to perform trade studies on in-situ resource utilization for human space exploration via NASA NextSTEP program.

April 2018: Graduate student Hao Chen receives MAVIS Memorial Fund Scholarship Award; featured on AE Department News.

April 2018: Graduate student Hang Woon Lee receives NSF Graduate Fellowship; featured on AE Department News.

April 2018: Research publications by graduate students Bindu Jagannatha and Hao Chen aiming to optimize campaign-level space mission design are featured on AE Department News.

December 2017: Prof. Ho starts a research project with Space Systems Loral on logistics design for the Gateway concept via NASA NextSTEP program.

September 2017: Prof. Ho is selected for a NASA award to perform economic analysis for space development funded by NASA Emerging Space Office; project starts in January 2018.

July 2017: Prof. Ho starts a research project on “lego-like” on-orbit platform design with CU Aerospace funded by DARPA Tactical Technology Office through SBIR program Phase II; featured on AE Department News.

August 2016: Prof. Ho starts a research project on transportation network design optimization for cis-lunar space economy in collaboration with United Launch Alliance.

August 2016: Prof. Ho starts a research project on large-scale satellite constellation design in low-Earth orbits in collaboration with Mitsubishi Electric Corporation.

July 2016: Prof. Ho starts a research project on “lego-like” on-orbit platform design with CU Aerospace funded by DARPA Tactical Technology Office through SBIR program Phase I.