On January 20th, the inauguration ceremony of US President Biden, space guests pass by and observe the ceremony

2021/01/2116:36:03 science 1955

US President Biden will be sworn in on January 20, 2021 local time in accordance with tradition. The alert level of Washington, D.C. has been raised again and entered a state of full alert.

At the same time, NASA is paying close attention to the situation outside the earth and notified a news in time.

On the important day of Biden, there will be 6 asteroids forming a guest group within 24 hours of the day, passing by the earth one after another at super high speed-it feels like Biden Span1span Space invited guests. As of press time, 3 of them have successfully miscarried with the earth safely. They are:

10:17 on the 20th, Beijing time The 2021 BO1 asteroid with a diameter of about 9 meters flies by at a speed of 36,000 km/h;

Beijing time at 11:53 on the 20th, the largest diameter of about 36 meters 2021 BL asteroid at 46,000 km/h Speed flies;

Beijing time at 16:13 on the 20th, the 2021 AC6 asteroid with a maximum diameter of about 55 meters flew at a speed of 50,000 km/h;

but then their boss will Ultra-large volume and ultra-close distance to rub shoulders with the earth:

20:56 on the 20th, Beijing time, the 2021 BK1 asteroid with a maximum diameter of about 35 meters will fly by at a maximum speed of about 96,000 km/h;

Beijing time at 0:57 on the 21st,The 2021 BS asteroid with the largest diameter of about 46 meters will fly by at a maximum speed of about 39,000 km/h;

Beijing time at 3:47 on the 21st, the largest of the six, 2021 BC, the largest diameter reached 93 meters, equivalent to the height of the Statue of Liberty in the United States, it will fly at a speed of about 46,000 kilometers per hour, and it will fly by only about 1 million kilometers from the earth at the nearest time;

them They are all marked by NASA as near-Earth objects ( NEO ), which means that they need to be continuously tracked and observed and closely monitored.

Because NEO may be further upgraded to "potentially dangerous celestial bodies", that is, PHO-any body whose diameter exceeds 140 meters, and the flight orbit intersects with earth orbit and is less than the distance from the surface Comets and asteroids of 7.48 million kilometers may cause damage to the earth due to any little external influence-this will be immediately marked as "PHO", and the results will be calculated based on the data, and different alert levels will be used to respond .

The current NASA data calculation results show that they are just passing by the inauguration ceremony of Sightseeing Biden, and there is no meaning to participate, so there is no danger of collision, although the distance is really close.

Thank you for paying attention to our headline number

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Some of the pictures and videos in this article are from the Internet and are deleted.

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