Meteor Flux Determination Using USG Fireball Data
Judhistira Aria Utama (a*), Taufiq Hidayat (b), Lala Septem Riza (c)

a) Department of Physics Education, Faculty of Mathematics and Natural Sciences Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi 229, Bandung 40154, Indonesia
*j.aria.utama[at]upi.edu
b) Astronomy Research Division, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132, Indonesia
c) Department of Computer Science Education, Faculty of Mathematics and Natural Sciences Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi 229, Bandung 40154, Indonesia

Abstract

Every time the Earth is impacted by celestial bodies of various sizes, some produce bright meteors known as fireballs. This study utilizes observational data from USG sensors. From 871 fireball data, we selected 249 events accompanied by pre-impact velocity information. Using the available velocity information and calculated total impact energy, we have calculated the impact velocity, photometric mass, radius (assuming a density value that complies with the PE criteria), and an estimate of the absolute magnitude of the parent body outside the atmosphere. Based on the cumulative number of events with meteoroid masses equal to or bigger than m, the fireball flux value has been obtained.

Keywords: Fireball flux, large meteoroid, small asteroid

Topic: Physics