Jean-Louis Rault
A5006011079- Astro and Planetary Science
- Advanced Photonic Communication Systems
- Planetary Science and Exploration
- Ionosphere and magnetosphere dynamics
- Geophysics and Gravity Measurements
- Solar and Space Plasma Dynamics
- Atmospheric aerosols and clouds
- GNSS positioning and interference
- Gamma-ray bursts and supernovae
- Spacecraft and Cryogenic Technologies
- Stellar, planetary, and galactic studies
- Atmospheric Ozone and Climate
- Astrophysics and Cosmic Phenomena
- Space Satellite Systems and Control
- Astronomical Observations and Instrumentation
- Methane Hydrates and Related Phenomena
- Isotope Analysis in Ecology
- earthquake and tectonic studies
- Scientific Computing and Data Management
- Astronomy and Astrophysical Research
- Earthquake Detection and Analysis
- Radio Astronomy Observations and Technology
- Tropical and Extratropical Cyclones Research
- Radio Wave Propagation Studies
- Species Distribution and Climate Change
Institut de Mécanique Céleste et de Calcul des Éphémérides
2014-2021
Centre National de la Recherche Scientifique
2019-2021
Université Paris Sciences et Lettres
2019-2021
Roche (France)
2021
Royal Meteorological Institute of Belgium
2019-2020
Université de Lille
2019-2020
Sorbonne Université
2019-2020
World Meteorological Organization
2018
ABSTRACT Two meteorite pieces have been recovered in Italy, near the town of Cavezzo (Modena), on 2020 January 4th. The associated fireball was observed evening New Year’s Day by eight all-sky cameras PRISMA network, a partner FRIPON. computed trajectory had an inclination angle approximately 68° and velocity at infinity 12.8 km s−1. Together with relatively low terminal height, estimated as 21.5 km, those values were indicating significant possibility dropping event, additionally confirmed...
Context. Fireball networks are developing over the whole planet, with aim of recovering meteorites and at same time determining their orbits. The ultimate goal such is to identify parent bodies meteorite families achieve this, orbit accuracy critical. Yet, determination an relies on a long complex reduction process including: (1) astrometry, heavy distortion for fish-eye lenses, (2) estimation external bias observation, (3) fit trajectory, (4) deceleration model, (5) actual computation....
Context: Until recently, camera networks designed for monitoring fireballs worldwide were not fully automated, implying that in case of a meteorite fall, the recovery campaign was rarely immediate. This an important limiting factor as most fragile - hence precious meteorites must be recovered rapidly to avoid their alteration. Aims: The Fireball Recovery and InterPlanetary Observation Network (FRIPON) scientific project overcome this limitation. network comprises automated radio deployed...
ABSTRACT The increase in detector sensitivity and availability the past three decades has allowed us to derive knowledge of meteoroid flux impact energy into Earth’s atmosphere. We present multi-instrument detected 2018 December 22 fireball over Western Pyrenees, compare several techniques aiming obtain a reliable method be used when measuring impacts similar scale. From trajectory data alone, we found bulk density 3.5 g cm−3 most likely value for Pyrenean meteoroid. This further constrain...