Schedule and Meeting Programs

Important Dates

February 3: Abstract submission deadline for Apophis T-4. here
April 4 (Fri): Registration deadline

Meeting Schedule

The Hera Community Meeting 2025 will take place on 7-11 April 2025 in Tokyo, together with the Apohis T-4 meeting and the first RAMSES Community meeting.

The overall schedule is the following:

7 -8 April: Hera Community Meeting

9 -10 April: Apophis T - 4 years meeting [Program with Links to Abstracts]

11 April: RAMSES Community meeting

Further information and abstract submission for the Apophis meeting can be found on:

https://www.hou.usra.edu/meetings/apophis2025/

Hera Workshop Program

7April, 10:00-12:30

Introduction

10:00-10:05 Welcome Introduction Shin-ich Ohkoshi: The Dean of Graduate School of Science, the University of Tokyo
10:05-10:20 Keynote Introduction Masaki Fujimoto: The director general of ISAS/JAXA

General update on Hera

10:20-10:40 Michael Küppers: Spacecraft status, Operations, and Payload set
10:40-11:00 Patrick Michel: Science

Coffee Break 11:00-

Payload presentations:

11:30-11:40 Jean-Baptiste Vincent and Seiji Sugita: Asteroid Framing Camera (AFC)
11:40-11:50 Marcel Popescu and Julia de León: HyperScout-H
11:50-12:00 Tatsuaki Okada: Thermal InfraRed Imager (TIRI)
12:00-12:15 Fabio Ferrari: Milani CubeSat
12:15-12:30 Ozgur Karatekin: Juventas CubeSat

7April, 14:00-18:00

Working Group 1: impact Modeling

14:00-14:05 Wünnemann: Introduction
14:05-14:20 Nakamura: Low-gravity experiments
14:20-14:35 Luther: Impact Experiments at the EPIC facility, CAB, Madrid,in the frame of the Hera mission
14:35-14:50 Cem Berk Senel: Simulating DART-scale impacts on a complex low-strength target
14:50-15:05 Malamud: Momentum transfer coefficient constraints for the 'Hypothetical Asteroid Impact Scenario' exercise
15:05-15:20 Raducan: The violent history of Deimos
15:20-15:30 Raducan, Wünnemann, Jutzi: Discussion, outlook

Coffee Break 15:30 - 16:10

Working Group 2: Ground based Observations (Chairs Pravec and Snodgrass)

16:10-16:25 Petr Pravec: Observations of mutual events in the Didymos-Dimorphos system in February 2025
16:25-16:45 Petr Scheirich: Update of the Dimorphos orbit from the 2025 mutual event observations
16:45-16:55 Tim Lister: Photometric observations of Didymos with LCO in January-February 2025
16:55-17:05 Matthew Knight: Photometric observations of Didymos with Gemini in February 2025
17:05-17:15 Steve Cherley, Richard Cannon, Colin Snodgrass: Photometric observations of Didymos with Palomar on February 21-25
17:15-17:30 Damya Souami: Stellar occultations by Didymos in 2024 and plans for 2026

8April, 09:30-12:30

Working Group 3: Dynamics and Physical Properties (Chair Campo Bagatin)

09:30-09:35 Campo Bagatin: Introduction
09:35-09:45 Harrison Agrusa: Post-impact binary orbit period change
09:45-09:55 John Wimarsson: Formation of binary asteroid satellites via sub-escape-velocity mergers
09:55-10:05 Rahil Makadia: Heliocentric beta from occultations
10:05-10:15 Stavro Ivanovski : Last update on the size distribution of dust on the edge of the ejecta cone on DART impac.
10:15-10:25 Alessandro Rossi: Secondary impact debris in the Didymos system.
10:25-10:35 Stefania Soldini: Ejecta Dynamics around the Didymos System
10:35-10:45 Iosto Fodde: Dynamical modelling of the CubeSat landings and how to infer surface properties from observing the bouncing process
10:45-10:55 Riccardo Lasagni: Radio Science updates on the Didymos Full Two-Body Problem dynamics
10:55-11:05 Adriano Campo Bagatin: Iterative estimation of Didymos and Dimorphos internal structure from mission data.
11:05-11:15 Q&A and discussion.

Coffee Break 11:15 - 11:30

Working Group 4: Data Analysis, exploitation, interpretation

　　Mars flyby presentation (Hera data)

11:30-11:55 Seiji Sugita and Jean-Baptiste Vincent: Analysis of AFC images during the flyby
11:55-12:10 Carolyn Ernst: Shape model of Deimos

　　Invited talk on MMX

12:10-12:30 Tomoki Nakamura: Future MMX observations of Deimos

Lunch Break 12:30 - 14:00

8 April,14:00-17:30

Working Group 4 continued: Data Analysis, exploitation, interpretation

　　Mars flyby presentation (Hera data): Seiji Sugita

14:00-14:20 Tatsuaki Okada: Analysis of TIRI images during the flyby
14:20-14:40 Julia de León (online), Marcel Popescu: Analysis of HyperScout images during the flyby
14:40-14:55 Riccardo Lasagni: Analysis of RSE during the flyby

　　Complementary observations: Patrick Michel

14:55-15:10 Noora Alsaeed (online): Hope observations of Deimos
15:15-15:30 Maurizio Pajola: Phobos and Deimos phase reddening and photometric properties (CaSSIS dataset)
15:30-15:45 Joel Beccarelli (online): OMEGA observations of Phobos
15:45-16:00 Giovanni Poggiali, John Brucato: Lab experiments of simulants/analogs of Phobos and Deimos

Coffee Break 16:00 - 16:15

　　Complementary observations during flyby: Özgür Karatekin

16:15-16:30 Timothy Titus: THEMIS observations during Hera Mars flyby + Observations of the water ice lag annulus with TIRI
16:30-16:45 Valentin Bickel: CaSSIS/TGO observations during Hera Mars flyby
16:45-16:55 Özgür Karatekin: MEX/TGO observations during Hera Mars flyby
16:55-17:05 Mark Lemmon: Perseverance obserations during the Hera Mars flyby

　　Summary / session wrap-up

17:05-17:20 WG4 chairs, Patrick Michel, Michael Kueppers: Coordination of the Hera Mars flyby papers (instrument calibration and science)

APOPHIS T-4 Workshop Program

9 - 10 April

Apophis T - 4 years meeting [Program with Links to Abstracts]

Wednesday, April 9, 2025

9:30 AM Koshiba Hall (main hall) Session 0: Welcome and International Perspectives at Apophis T-4 Years

11:15 AM Koshiba Hall (main hall) Session 1: Orbital Updates and Modeling Measurable Effects on Apophis

2:30 PM Koshiba Hall (main hall) Session 2: Earth-Based Observations and International Collaborations

4:15 PM Koshiba Hall (main hall) Session 3: OSIRIS-APEX, Ramses, and Destiny+

Thursday, April 10, 2025

9:30 AM Koshiba Hall (main hall) Session 4: Mission/Instrument Concepts and Implementation

12:00 PM Koshiba Hall (main hall) International Dialog on Apophis Collaboration

2:30 PM Koshiba Hall (foyer) Poster Session: All Topics

3:30 PM Koshiba Hall (main hall) Session 5: Apophis Communications Challenge and the 2029 IYAPD

5:10 PM Koshiba Hall

RAMSES Workshop Program

11 April, 9:30-12:30

Introduction session (Chair: Patrick Michel)

09:30-09:40 JAXA General Introduction (M. Fujimoto)
09:40-10:00 RAMSES objectives and team structure (Monica Lazzarin)
10:00-10:10 JAXA contributions to RAMSES mission (H. Toyota)

Coffee break (10:10-10:30)

RAMSES Payload Presentations (Chair: Monica Lazzarin)

Main Spacecraft:

10:30-10:40 AFC (Michael Küppers)
10:40-10:50 TIRI (Tatsuaki Okada)
(Laser: Just mention, no presentation expected)
10:50-11:00 Radio Science (Zannoni)
11:00-11:10 HAMLET (Palomba)
11:10-11:20 CHANCES (Jutzi)
11:20-11:30 RPS (Krupp)

CubeSat 1:

11:30-11:40 Radar (Herique)
11:40-11:50 VISTA (Dirri)
11:50-12:00 NAVCAM (Ferrari)

CubeSat 2:

12:10-12:20 Gravimeter (Karatekin)
12:20-12:30 Magnetometer (Matthias Noeker)
12:30-12:40 Seismometer (Bousquet)

Lunch Break

11 April, 14:30-17:30

Working Group Presentations

14:30-15:00 Working Group 1: Surface Science Modeling and Experiments (Ferrari, Murdoch (online))
15:00-15:30 Working Group 2: Ground Based Observations (Pravec, Snodgrass, Tatsumi)

Coffee Break: 15:30-16:00

16:00-16:30 Working Group 3: Dynamics and Physical Properties (Campo Bagatin, Charnoz, Rossi)
16:30-17:00 Working Group 4: Data analysis, exploitation and interpretation (Karatekin, Herique, de León (online), Jutzi)

Wrap up: Lazzarin and Michel 17:00-17:30