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To attend in person: Go to 35 rue Hélène Brion, and once in the lobby of the main entrance, take the elevators on the right to the 5th floor. Exit the elevator and take the corridor to the right. The seminar room is number 522.

To attend remotely: https://visio.numerique.gouv.fr/owk-pims-txt

Seminars

The Australian Desert Fireball Network: from natural impactors to space debris.

by Dr Eleanor Sansom (Director Desert Fireball Network and Global Fireball Observatory)

→ Europe/Paris
Lamarck 522 (IPGP - Campus des Grands Moulins)

Lamarck 522

IPGP - Campus des Grands Moulins

26
Description

The Desert Fireball Network detects and characterises fireballs across Australia through distributed optical observatories, linking recovered meteorites to their orbital origins, constraining the small body population in the inner solar system. Recently, we've been leveraging observations from complementary sensors, including doppler weather radar, satellite imagery, seismic, infrasound, and spectroscopy. These multi-sensor events can help to validate our methods. We're currently designing our next generation observatories, which will include high frame rate cameras, as well as infrasound sensors. Beyond natural objects, space debris re-entries provide an independent validation test case and address the urgent monitoring need for large-scale re-entry events. I'll compare our dynamical fragmentation modelling with infrasound-derived constraints and I'll discuss the imminent detection opportunities ahead.