According to the Purple Mountain Observatory of the Chinese Academy of Sciences, the fourth asteroid impact in 2024 has been successfully warned. This is also the 11th time that humans have successfully warned of an asteroid impact. China has also conducted multi-angle tracking and monitoring.This asteroid is about 0.75-1 meters in diameter. It was first discovered by the University of Arizona's Bock 2.3-meter telescope at 13:55:16 on December 3, 2024, Beijing time., provisional name C0WEPC5.
Subsequently, many astronomical institutions such as the United States and Europe conducted observations. The European Space Agency ESA predicted that it would enter the atmosphere over Siberia (61.01°N, 119.98°E) at around 0:15 (±5 minutes) on December 4, Beijing time.
According to Russian surveillance video, at 0:14:53 on December 4, Beijing time, a bright bolide arrived as scheduled.
Two hours after the impact, the International Minor Planet Center received 64 observational data from around the world, gave the asteroid the number 2024XA1, and updated the asteroid's entry into the atmosphere: 60.5°N, 119.0°E.
During this asteroid impact, our country was in a key geographical location for monitoring, and could conduct follow-up observations of the asteroid after dark.
Purple Mountain Observatory OrganizationYao'an high-precision measurement platform 0.8-meter telescope, Lenghu MASTA 0.7-meter telescope array, and 2.5-meter Micius survey telescopeTracking observations were carried out, and images 42 minutes before the impact were finally observed.
Xinjiang Xingming Observatory also uses its0.5 meter HMT telescope, 0.28 meter GY7 telescopeObservations were carried out.
During the asteroid's approach, the Purple Mountain Observatory predicted that it would enter the atmosphere at 0:15 Beijing time on December 4, at a position of 60.80°N, 118.98°E. The calculation results were consistent with those announced by the International Minor Planet Center.
Observation image of the 0.8-meter telescope of the Yao'an high-precision measurement platform, as of 20:34:11 on the 3rd, and on the right as at 23:33:08
Cold Lake MASTA 0.7-meter telescope array observation image
Observation images from the Mozi Survey Telescope
Successful asteroid impact early warning cases Successful asteroid impact early warning cases are becoming increasingly common