Perihelion filtering & the meteorite record
Why meteorite collections are a thermally- and atmospherically-filtered subset of what actually reaches Earth, and where the carbonaceous chondrites went.
I study how small bodies deliver matter and information to Earth, connecting telescopic surveys, the fireballs that wide-field camera networks catch, and the meteorites we analyse in the lab. Across all of it, what reaches the ground is only a filtered sample of what's actually out there.
Why meteorite collections are a thermally- and atmospherically-filtered subset of what actually reaches Earth, and where the carbonaceous chondrites went.
Most “comet-like” fireballs are asteroidal interlopers: long-term integrations show only ~1–5% of cm–m bodies on Jupiter-family orbits are dynamically cometary.
Turning the NEXRAD weather-radar network into an automatic meteorite-fall detector, and working toward fusing radar, optical & infrasound to close the 10–100 m “decametric gap.”
Fireball-network science across the full chain, from astrometry and orbits to drone- and ML-assisted recovery of fresh, orbit-bearing meteorites.