[P-PS01] Outer Solar System Exploration Today, and Tomorrow

Tue. May 26, 2026 1:45 PM - 3:15 PM 302 (International Conference Hall, Makuhari Messe)

Chairperson:Shibaike Yuhito(Kagoshima University), Imamura Takeshi(Graduate School of Frontier Sciences, The University of Tokyo)

The giant planets shape our solar system. The physical and chemical processes they harbor provide unique opportunities to study the phenomena relevant for studying Earth and other planets, including exoplanetary systems. In this session, we welcome diverse topics encompassing the giant planets and their moons and rings, including their origins, interiors, atmospheres, compositions, surface features, electromagnetic fields, and plasma environments. To advocate for current and future outer planets exploration (Juno, New Horizons, JUICE, Europa Clipper, Dragonfly, OPENS-0, and beyond), we also solicit contributions on future missions to explore giant planet systems (e.g., Uranus Orbiter and Probe, and the OPENS Program), including how to develop better international cooperation. Discussion in this latter category will include progress in developing a solar sail mission concept for observing the Jupiter system and its Trojan asteroids. We also solicit presentations about new scientific results generated using data returned by space telescopes such as the James Webb Space Telescope (JWST).

+Add all to schedule

1:45 PM - 2:00 PM

[PPS01-13] Open Questions about Saturn's Rings

★Invited Papers

*Matthew M Hedman¹ (1. University of Idaho)

2:00 PM - 2:15 PM

[PPS01-14] The OPENS-0 Mission and Its Science Plan in the Interplanetary Space toward the Outer Planet Region

*Hajime Yano¹, Takeshi Imamura², Shuji Matsuura³, Naoya Sakatani¹, Hajime Kawahara¹, Kazuyoshi Arai⁴, Hiroki Ando⁵, Yuhito Shibaike⁶, Naoya Ozaki¹, Kakeru Tokunaga¹, Ryu Funase^1,2 (1. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 2. University of Tokyo, 3. Kwansei Gakuin University, 4. Hosei University, 5. Kyoto Sangyo Univrersity, 6. Kagoshima University)

2:15 PM - 2:30 PM

[PPS01-15] Science objectives of OPENS-0, Saturn's ring and the optical cameras

*Yuhito Shibaike¹, Takeshi Imamura², Hajime Yano^3,4, Shuji Matsuura⁵, Naoya Sakatani³, Shunichi Kamata⁶, Hiroshi Kobayashi⁷, Haruna Sugawara³, Hajime Kawahara^3,2, Naoya Ozaki^3,4, Kakeru Tokunaga³, Ryu Funase^3,2 (1. Kagoshima University, 2. The University of Tokyo, 3. Institute of Space and Astronautical Science, 4. The Graduate University for Advanced Studies, 5. Kwansei Gakuin University, 6. Hokkaido University, 7. Nagoya University)

2:30 PM - 2:45 PM

[PPS01-16] Radio occultation experiments during the cruise and Saturn flyby in the OPENS-0 mission

*Takeshi Imamura¹, Hiroki Ando², Katsuyuki Noguchi³, Shota Chiba⁴, Atsushi Tomiki⁵, Hiroshi Takeuchi⁵, Sami Asmar⁶, Essam Marouf⁷, Eli Galanti⁸, Yohai Kaspi⁸ (1. Graduate School of Frontier Sciences, The University of Tokyo, 2. Kyoto Sangyo University, 3. Nara Women's University, 4. Naogya University, 5. JAXA, 6. NASA JPL, 7. San Jose State University, 8. Weizmann Institute)

2:45 PM - 3:00 PM

[PPS01-17] Atmospheric Conditions of Uranus Expected for the Uranus Orbiter and Probe (UOP) Mission in the 2040s

*Kunio M. Sayanagi¹, William R. Saunders^1,2, Justin Garland^1,2, Michael H. Wong³, Ramanakumar Sankar³, Thomas R. Spilker⁴ (1. NASA Langley Research Center , 2. Analytical Mechanics Associates, Inc., 3. University of California, Berkeley, 4. Independent Consultant)

3:00 PM - 3:15 PM

[PPS01-18] Uranus Atmospheric Results from the 2025 Stellar Occultation and Reports on Other Occultation Campaigns 2025-24

*William Ryan Saunders^1,2, Kunio M Sayanagi¹, Kotaro Amada³, Chris Anderson⁴, Supachai Awiphan⁵, Katie Breeland-Newcomb⁷, Joel Castro-Chacón⁸, Nancy Chanover^9,10, Erika Cook¹¹, Emma Dahl⁶, Jack Dembicky^9,10, Darren DePoy¹¹, James Dull¹², Richard G French^13,14, Gregory Harmon¹⁵, Matthew Hedman¹⁶, Jon Holtzman⁹, William Hubbard¹⁷, Stephen C Hummel^18,19, Puji Irawati⁵, Jason Jackiewicz⁹, Brian Jackson²⁰, Jun Kimura²¹, Craig Kulesa¹⁷, Matthew Lehner²², Stephen Levine⁷, Donald W McCarthy¹⁷, Brian McLeod²³, Jeffrey P Morgenthaler²⁴, Ashok Nagarhalli²⁵, Athena Neeld⁹, Joe Ninan²⁶, Ryan Oelkers²⁷, Devendra Ojha²⁶, Michael J Person²⁸, Saran Poshyachinda⁵, Somsawat Rattanasoon⁵, Hideo Sagawa²⁹, Luke Schmidt³⁰, Saurabh Sharma³¹, Bruno Sicardy^32,33, Michael Skrutskie³⁴, Damya Souami^33,35,36, Hailey Stubbers²⁰, Seiko Takagi³, Orarik Tasuya⁵, Anandmayee Tej³⁸, Anne Verbiscer³⁴, Leslie Young³⁷, Zhi-Wei Zhang²² (1. NASA Langley Research Center, 2. Analytical Mechanics Associates, Inc., 3. Hokkaido University, 4. College of Southern Idaho, 5. National Astronomical Research Institute of Thailand, 6. California Institute of Technology, 7. Lowell Observatory, 8. National Autonomous University of Mexico, 9. New Mexico State University, 10. Apache Point Observatory, 11. Texas A&M University, 12. College of Idaho, 13. Wellesley College, 14. Space Science Institute, 15. Idaho Department of Parks and Recreation, 16. University of Idaho, 17. University of Arizona, 18. McDonald Observatory, 19. UT Austin, 20. Boise State University, 21. Osaka University, 22. Academia Sinica Institute of Astronomy and Astrophysics, 23. Harvard-Smithsonian Center for Astrophysics, 24. Planetary Science Institute, 25. Physical Research Laboratory, India, 26. Tata Institute of Fundamental Research, 27. The University of Texas Rio Grande Valley, 28. Massachusetts Institute of Technology, 29. Kyoto Sangyo University, 30. Yerkes Observatory, 31. Aryabhatta Research Institute of Observational Sciences, 32. LTE, 33. Observatoire de Paris, 34. University of Virginia, 35. CNRS, 36. LIRA, 37. Southwest Research Institute , 38. Indian Institute of Space Science and Technology)

Session information