The discovery of suspected meteorites should be sent to the scientific research department as soon as possible.
In the early morning of October 11, a number of netizens released videos saying that they saw the suspected meteorite falling, and netizens in Shenyang, Changchun, Songyuan, Harbin, Heilongjiang and other places witnessed the fire. Some netizens said that the suspected meteorite fell in Songyuan City, Jilin Province.
_suspected meteorite in the circle
Zhang Baolin, a veteran meteorite expert at Beijing Astronomical Museum, told reporters that scientific researchers are looking for accurate satellite positioning data, and ultimately to determine whether the meteorite fell based on physical findings. According to the current situation, it is supposed that meteorites should fall. It is speculated that the falling area may be at the junction of Heilongjiang and Jilin.
On October 11, the reporter contacted the Songyuan municipal government and the natural resources bureau. The staff said that they had not received relevant reports at present.
Netizens from many places witnessed the suspected meteorite fall
Expert analysis may be a fireball phenomenon
Around 0.16 a.m. on October 11, news of a meteorite suspected to have fallen over Songyuan, Jilin Province, spread through the Internet. Video footage shows that a light suddenly appears in the sky, and the whole night sky is like the day for an instant.
Zhang Baolin, a veteran meteorite expert from Beijing Astronomical Museum, was contacted on the morning of November 11. He said that not only in Shenyang, Changchun, Songyuan and other places, but also in Tibet and Guangdong, the citizens saw the fire of the suspected meteorite fall. At present, the news of suspected meteorite fall has attracted attention from professional team, amateur team, meteorite enthusiasts and meteorite collectors. Many people have rushed to the scene to learn about the situation.
Zhang Baolin told reporters that from the relevant videos released by netizens, it may be the meteor phenomenon, that is, the meteor phenomenon produced when the larger meteoroid falls. The fire phenomenon that netizens see should occur at an altitude of 12 to 120 kilometers from the ground, where meteoroids will shine. It enters the atmosphere very fast. The friction heat will heat up the surrounding air to tens of thousands of degrees Celsius, and its surface temperature can reach 4000 degrees Celsius. Then it will shine. In general, meteorites may burst under the resistance of air when they are near the ground.
Scientists are looking for accurate data.
Or 1 to 10 kilograms of meteorites to the ground
As for the determination of suspected meteorite falling location, Zhang Baolin introduced that there are more accurate satellite monitoring methods in the world at present. In addition, according to the direction provided by the witnesses, the three different angles of the witnesses can roughly determine the location of the meteorite falling.
But ultimately, we need to determine whether the meteorite is falling or not based on the physical discovery. At present, researchers in related fields are seeking accurate data of satellite positioning. Zhang Baolin said that according to the current situation, it is likely that meteorite falls. It is speculated that the falling area may be at the junction of Heilongjiang and Jilin, and around Songyuan. However, at present, the amount of meteorite falls is not large, and only thousands of grams of meteorite may fall on the surface.
Ye Quanzhi, an astronomer specializing in astronomy and planetary sciences, analyzed the data. According to the relevant data, the time of the air explosion was 0:16:36 seconds Beijing time on the 11th. The center of the air explosion was 122.9 degrees east longitude and 44.3 degrees north latitude. It was located about 75 kilometers northeast of Tongliao City, Inner Mongolia. It was far away from Changchun and Songyuan (150 kilometers southwest of Songyuan and 200 kilometers northwest of Changchun).
The impactor is about 2 to 4 meters in diameter, and 1 to 10 kilograms of meteorites may reach the ground in this impact event.
Experts refute rumors
Meteorites are worth more than gold is hype
Zhang Baolin told reporters that many meteorite enthusiasts and meteorite hunters are concerned about the news of suspected meteorite fall, and some people have rushed to the scene to learn about the situation. But it should be reminded that meteorites have high research value in scientific research, and the earlier they are discovered, the higher their research value will be. If nearby villagers find meteorites suspected of falling, do not do other disposal such as washing, keep dry and send them to the scientific research department as soon as possible.
Other experts pointed out that there are rumors that meteorite debris is more valuable than gold, but the value of falling on the earth is mainly based on scientific research value, economic value is only some peoples hype.
In addition, it is more coincidental that about an hour before the meteorite crash, there was a sensitive earthquake in Songyuan City, Jilin Province, which led many netizens to associate the meteorite crash with the earthquake before the meteorite crash. Many experts disprove rumors that meteorite falls have nothing to do with earthquake precursors and are purely coincidental. (Reporter Zhang Xiangmei, trainee journalist Wei Xiaohan)
Source: Liable Editor of Beijing Youth Daily: Yao Liwei_NT6056