University of Colorado Boulder with the Rocky Mountains – sunny & snowy days
Keywords: astrodynamics, optimization, control theory, celestial mechanics, small body exploration, small-sat missionNews in 2019
- November 2019: my paper “Solar Radiation Pressure-Based Orbit Control with Application to Small-Body Landing” is published in AIAA Journal of Guidance, Control, and Dynamics (DOI: 10.2514/1.G004489; Link)
- September-November 2019: worked on the development of solar sailing trajectory design techniques for NEA Scout mission (Link) at NASA Jet Propulsion Laboratory as a visiting student researcher. Group: Outer planet mission analysis, Mentors: Dr. Gregory Lantoine & Dr. Jon Sims.
- August 2019: defended the comprehensive exam (Ph.D. research proposal presentation). Now I’m a Ph.D. candidate:) Ph.D. thesis committee: Prof. Jay McMahon (aerospace; committee chair), Prof. Dan Scheeres (aerospace), Prof. Nisar Ahmed (aerospace), Prof. Stephen Becker (Applied math), Dr. Gregory Lantoine (NASA/JPL-Caltech).
- August 2019: presented two papers at AAS/AIAA Astrodynamics Specialist Conference at Portland, ME. Paper title: “Risk-aware Trajectory Design with Continuous Thrust: Primer Vector Theory Approach”; “Risk-aware Trajectory Design with Impulsive Maneuvers: Convex Optimization Approach.”
- July 2019: my paper is accepted for presentation at 2019 IEEE Conference on Decision and Control (CDC)! Excited to present my work at IEEE CDC, one of the most competitive control conferences! “Convex Optimization over Sequential Linear Feedback Policies with Continuous-time Chance Constraints“, Kenshiro Oguri, Masahiro Ono (NASA/JPL-Caltech), and Jay McMahon (CU).
- June 2019: presented a paper at 32nd International Symposium on Space Technology and Science (ISTS), Fukui, Japan. Paper title: “SRP-based Orbit Control for Asteroid Exploration.“
- May 2019: completed Spring 2019 semester at CU Boulder. Course: Probabilistic Algorithms for Aerospace Autonomy by Prof. Nisar Ahmed. Finished all coursework necessary for Ph.D.
- April 2019: submitted two extended abstracts to AAS/AIAA Astrodynamics Specialist Conference at Portland, ME in August 2019.
- March 2019: submitted a paper to IEEE Conference on Decision and Control (CDC) at Nice, France in December 2019.
- January 2019: “The Bahls Endowed Funds — Travel Award” from Colorado Center for Astrodynamics Research awarded for a paper “Science Orbit Design with Frozen Beta Angle: Theory and Application to Psyche mission”
- January 2019: presented two papers at AAS/AIAA Space Flight Mechanics Meeting at Ka’anapali, HI.
Paper titles: “Science Orbit Design with Frozen Beta Angle: Theory and Application to Psyche mission”; “SRP-based Orbit Control with Application to Orbit Stationkeeping at Small Bodies.”
- December 2018: completed Fall 2018 semester at CU Boulder. Courses: Advanced Topics in Convex Optimization by Prof. Stephen Becker (applied math department); Space Vehicle Guidance and Control by Prof. J. McMahon.
- November 2018: submitted an abstract to 32nd International Symposium on Space Technology and Science at Fukui, JPN in June 2019.
- September 2018: defended the Preliminary exam. Now I’m a Ph.D. pre-candidate:)
- September 2018: submitted two extended abstracts to AAS/AIAA Space Flight Mechanics meetings at Maui, HI in January 2019.
- August 2018: “John V. Breakwell student award” from AAS Space Flight Mechanics Committee awarded for a paper “SRP-based Orbit Control with Application to Small Body Landing”
- August 2018: presented a paper at AAS/AIAA Astrodynamics Specialist Conference at Snowbird, UT. Paper title: “SRP-based Orbit Control with Application to Small Body Landing”
- June-August 2018: worked on science orbit design for the Psyche mission (Link) at NASA Jet Propulsion Laboratory as a visiting student researcher. Group: Outer planet mission analysis, Mentors: Dr. Gregory Lantoine & Dr. Jon Sims.
- May 2018: completed Spring 2018 semester at CU Boulder. Courses: Statistical Orbit Determination by Prof. Jay McMahon; Interplanetary Mission Design by Dr. Kate Devis.
- April 2018: submitted an extended abstract to AAS/AIAA Astrodynamics Specialist Conference at Snowbird, UT in August 2018.
- March 2018: NIAC 2017 “Dismantling Rubble Pile Asteroids with AoES (Area-of-Effect Soft-bots)”, a project I’ve been working on since August 2017, is awarded Phase II study funding! (Link) Supported by NASA Innovative Advanced Concept (NIAC) program. PI: Jay McMahon.
- December 2017: completed Fall 2017 semester at CU Boulder. Courses: Celestial Mechanics by Prof. Dan Scheeres; Statistical Estimation for Dynamical Systems by Prof. Nisar Ahmed.
- August 2017: started my Ph.D. study & working as a graduate research assistant at CCAR, Ann and H.J. Smead Aerospace Engineering Sciences, CU Boulder. *CCAR: Colorado Center for Astrodynamics Research
- August 2017: attended 31st Small Satellite Conference at Logan, UT, as a co-author of a presentation “EQUULEUS: Mission to Earth-Moon Lagrange Point by a 6U Deep Space CubeSat”
- July 2017: attended a summer session at UC Berkeley for three weeks.
- June 2017: attended 9th International Workshop on Satellite Constellations and Formation Flying at Boulder, CO.
- June 2017: presented my research at 26th International Symposium on Space Flight Dynamics at Ehime, Japan. Paper title: “Mission Analysis of EQUULEUS: Design of the Science Orbit Phase”
- April 2017: started working as a JSPS DC1 research fellow at the University of Tokyo (until August 2017). *JSPS: Japan Society for the Promotion of Science
- March 2017: completed the M.S. degree in aerospace engineering at the Department of Aeronautics and Astronautics, the University of Tokyo.
- January 2017: presented my research at the 4th International Symposium on Solar Sailing at Kyoto, Japan. Paper title: “Precision Evaluation of Reduced Dynamics Model for Non-uniform Spinning Solar Sail Driven by Reflectivity Control”
Pray, but work; suffer, but hope; keeping both the earth and the stars in view. Do not try to settle permanently, for it is a place of pilgrimage; not a home, but a halting place.
– August Strindberg