Observation of Asteroidal Occultation with Frame-integrating Video System

Abstract

For the observation of asteroidal occultation, GPS time-inserted video system has been used at the observatory of Tsukuba since 2012. In order to target fainter stars, a new video camera that can integrate video frames was installed in 2019, and it makes opportunity of observation significantly increase such that the limiting magnitude has fallen to 15th magnitude from 12th magnitude. This paper reports the camera, observations, and the results of analysis, which tell us the sizes and the shapes of asteroids.