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Asteroids Impacting the Solar System Planets and the Moon. III. Real Impacts from Known Objects and LSST Discovery Predictions
Qifeng Cheng, Daniel Scolnic
Impact rates predicted using pre-impact source-population models and those inferred from observations disagree by a factor of a few to across the Solar System planets and…
Asteroids Impacting the Solar System Planets and the Moon. II: Comparison with Observational Impact Records
Qifeng Cheng, Daniel Scolnic
Planetary impact rates are difficult to infer from observations alone because impacts are rare, observational records are target-dependent, and converting observed flashes, bolides…
Asteroids Impacting the Solar System Planets and the Moon. I. Collision Rates from N-body Simulations
Qifeng Cheng, Daniel Scolnic
Previous studies have shown a mismatch between the simulated rate of asteroids impacting the Earth and the observed rate, posing an important problem for planetary defense. Extendi…
Assessing the Vera Rubin Observatory's Ability to Discover Asteroid Impactors Before They Collide with Earth
Qifeng Cheng, Daniel Scolnic, Jacob A. Kurlander +2
Asteroid impactors larger than ~10 m, from Chelyabinsk-scale airburst and Tunguska-scale events to >300 m continental threats, remain the dominant planetary-defense risk. While the…
NSF-DOE Vera C. Rubin Observatory Observations of Interstellar Comet 3I/ATLAS (C/2025 N1)
Colin Orion Chandler, Pedro H. Bernardinelli, Mario Jurić +305
We report on the observation and measurement of astrometry, photometry, morphology, and activityof the interstellar object 3I/ATLAS, also designated C/2025 N1 (ATLAS) with the NSF-…
Measuring the Distances to Asteroids from One Observatory in One Night with Upcoming All-Sky Telescopes
Maryann Benny Fernandes, Daniel Scolnic, Erik Peterson +4
Upcoming telescopes like the Vera Rubin Observatory (VRO) and the Argus Array will image large fractions of the sky multiple times per night yielding numerous Near Earth Object (NE…