Orals

TP13

Planetary Dynamics I: Shape, Gravity, Orbit, Tides, and Rotation from Observations and Models

Shape, gravity field, orbit, tidal deformation, and rotation state are fundamental geodetic parameters of any planet, satellite, asteroid, or comet. Measurements of these parameters are prerequisites for e.g. spacecraft navigation and mapping from orbit, but also for modelling of the interior and evolution of the object. This session welcomes contributions from all aspects of planetary geodesy, including the relevant theories, observations and models.

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Co-organized as OPS12/SB13

Convener: Alexander Stark | Co-conveners: Dominic Dirkx, Antonio Genova, Xuanyu Hu, Valery Lainey, Gregor Steinbrügge, Marie Yseboodt

Orals

| Tue, 17 Sep, 10:30–12:00, 13:30–17:00

Earth (Room 5)

Posters

| Attendance Tue, 17 Sep, 17:15–18:45 | Display Mon, 16 Sep, 08:30–Wed, 18 Sep, 11:00|Basement

Tuesday, 17 September 2019 | Earth (Room 5)

Chairperson: Xuanyu Hu

Dynamics of Asteroids

10:30–10:45 |

EPSC-DPS2019-700

The Definition and Implications of the Rotational Roche Lobe

Daniel Scheeres and Paul Sanchez

10:45–11:00 |

EPSC-DPS2019-434

Geophysical constraints on the past spin states of Itokawa

Hannah Susorney, Catherine Johnson, Lydia Philpott, Ronald Ballouz, Erica Jawin, Kevin Walsh, and Benjamin Rozitis

11:00–11:15 |

EPSC-DPS2019-938

Long-term rotation of Ceres and Vesta

Timothée Vaillant, Jacques Laskar, Nicolas Rambaux, and Mickaël Gastineau

11:15–11:30 |

EPSC-DPS2019-1294

The Non-Principal Axis rotation of (5247) Krylov

Hee-Jae Lee, Josef Ďurech, Myung-Jin Kim, Hong-Kyu Moon, Chun-Hwey Kim, Young-Jun Choi, Adrian Galád, Donald Pray, Anna Marciniak, Murat Kaplan, Orhan Erece, Rene Duffard, Štefan Gajdos, and Jozef Világi

11:30–11:45 |

EPSC-DPS2019-264

YORP-Yarkowski evolution of asteroid families

Francesco Marzari, Alessandro Rossi, Paolo Paolicchi, Aldo Dell'Oro, Daniel J. Scheeres, and Oleksiy Golubov

11:45–12:00 |

EPSC-DPS2019-1195

Stability Regions Associated to Equilibrium Points of Irregularly Shaped Bodies

Othon Winter, Tamires Moura, Gabriel Borderes-Motta, Giulia Valvano, Rafael Sfair, and André Amarante

Lunch break

Chairperson: Alexander Stark

Dynamics of Mercury, Moon and Mars

13:30–13:45 |

EPSC-DPS2019-1183

Analysis of Mercury Laser Altimeter crossovers with improved Mercury and MESSENGER ephemerides

Stefano Bertone, Erwan Mazarico, Michael Barker, Sander Goossens, Antonio Genova, and Gregory Neumann

13:45–14:00 |

EPSC-DPS2019-65

Expected insights on Mercury’s interior from the BepiColombo Laser Altimeter

Robin Thor, Reinald Kallenbach, Ulrich Christensen, Alexander Stark, Gregor Steinbrügge, Andrea di Ruscio, Paolo Cappuccio, Luciano Iess, Hauke Hussmann, and Jürgen Oberst

14:00–14:15 |

EPSC-DPS2019-1607

| Media interest

Dynamical model of lunar core and observational constraint from Lunar Laser Ranging

Nicolas Rambaux, Vishnu Viswanathan, Agnes Fienga, Jacques Laskar, and Mickael Gastineau

14:15–14:30 |

EPSC-DPS2019-164

| Media interest

Mars Obliquity Through Deep Time: New Constraints from the Bombardment Compass

Samuel Holo, Edwin Kite, and Stuart Robbins

14:30–14:45 |

EPSC-DPS2019-663

Non-hydrostatic effects on Mars’ nutation

Attilio Rivoldini, Mikael Beuthe, Tim Van Hoolst, Mark Wieczorek, Rose-Marie Baland, Véronique Dehant, Bill Folkner, Sébastien Le Maistre, Marie-Julie Peters, and Marie Yseboodt

14:45–15:00 |

EPSC-DPS2019-1784

A comparison between physical and classical prescriptions of isostasy

Antony Trinh, Mikael Beuthe, and Isamu Matsuyama

Coffee break

Chairperson: Dominic Dirkx

Dynamics of Gas Giants and Icy Satellites

15:30–15:45 |

EPSC-DPS2019-1868

A Greens-function solution linking gravity measurement to the zonal winds in gas planets

Johannes Wicht, Wieland Dietrich, Paula Wulff, and Ulrich R. Christensen

15:45–16:00 |