On September 1, the asteroid 2011 ES 4 will be the closest space


The orbit of the asteroid 2011 ES4 (in white) is similar to that of Earth (in blue), but is tilted with respect to the orbit of our planet. The space rock completes an orbit around the Sun every 416 days. It accepts our orbit around September 1, 2020, as seen in this illustration via NASA / JPL.

A healthy-sized portion of the space reef is expected to pass close to the moon on September 1, 2020. There is uncertainty in its orbit, but scientists say that it will not hit our planet. The asteroid 2011 ES4 is expected to pass at about 30% of the Earth-Moon distance. But it can pass outside the Moon’s orbit – as far as 3.4 lunar distances. Or it can pass close, as close to 0.19 lunar distance. Why is there so much uncertainty? More about this below.

The asteroid should pass close to 16:12 UTC on 1 September (12:12 pm EDT; translate UTC for your time).

The asteroid has an estimated diameter of 72 to 161 feet (22 to 49 meters). It is in the range of the Chelyabinsk meteorite – about 17 meters (55 ft) in diameter – that swept through the Earth’s atmosphere over Russia in February 2013, creating a huge shock wave that broke windows in six Russian cities And caused some 1,500 people to seek therapy. Treatment, mostly from flying glass.

Long, thick pink smoke from the meteor in the misty sky.

Chelyabinsk meteorite smoke trail, February 15, 2013. Image via Alex Elshevik. Who caught it about a minute after the explosion.

But back to the asteroid 2011 ES4. Uncertainty about its orbit is due to the fact that observatories were able to track the space rock during only four days after it was discovered on March 2, 2011 from the Mount Lemon Survey in Arizona. After that, the observation of the asteroid faded.

Astronomers use an uncertainty scale from 0–9, in which 0 means the class is well known, and 9 means large uncertainty. Asteroid 2011 is the uncertainty of ES4. Uncertainty not only means that it can pass much closer to or closer than expected, but it can also pass a few hours before or later than expected.

Astronomer Lance Banner, an asteroid expert at NASA / JPL, told EarthSky:

The uncertainty indicates that it may miss the Earth by 0.08 AU, which is a distance of more than one Earth-Moon. If this happens, and given that the moon is still almost full, it is possible that no survey will be found during this flyby.

The asteroid 2011 ES4 is classified as a near-Earth object (NEO). But it’s good to know that this is an Apollo-class asteroid No Classified as a potentially dangerous asteroid. How does it matter? A potentially dangerous asteroid is defined as an object that passes relatively close to Earth, and is large enough to cause significant regional damage (150 meters, about 500 feet, in diameter) to the Earth. Was to attack.

Thus you can see that the asteroid 2011 ES4 has the ability to come closer instead. And it is a healthier size, larger, for example, than a small (truck-size) asteroid that drifted just 2,000 miles (3,000 km) away from Earth on August 16, 2020. Nevertheless – as in asteroids – the asteroid 2011 ES4 is still relatively small, not large enough to cause significant damage upon impact (and it is not expected to be close enough to enter our atmosphere, much less effect).

Therefore – all of you who are troubled – all of you can now breathe easily.

The chart of the orbits of the inner planets shows the orbits of the Apollo asteroids, with broad green bands around the orbits of Earth and Venus.

The location of Apollo asteroids compared to the orbits of terrestrial planets of our solar system. Image via Wikimedia Commons.

If an asteroid as large as 2011 ES4 was hitting our planet, it would not be enough to cause a major impact, much less an extinction event. However, a space rock with an average size of 98 feet (30 m) in space, as it enters our atmosphere, can produce a large shock wave.

Fortunately, even with a margin of error in the calculation, the asteroid 2011 ES4 must pass through Earth safely on September 1, 2020.

if Asteroid 2011 ES 4 is Discovered over the next few hours or days, it may be confusing with the first “new” asteroid, and models show exactly the same trajectory before obtaining a temporal or temporal designation, indicating that it is indeed The asteroid ES4 is “recovered” in our skies. If astronomers spot it – and if able to make new observations – astronomers should be able to better define the orbit of space rock.

We see a lot of news about near asteroids. But most of the asteroid passes have very low-lying rocks. We don’t have to worry, because if a small asteroid hits our atmosphere, most of it will disintegrate, and since the Earth is covered by about 70% of the oceans, most of the events will happen on the water, maybe even someone’s Do not meditate.

What about any major asteroid approaching Earth? While there are many small asteroids whose orbit crosses the Earth’s orbit, fortunately, there are no known large rocks with dangerous orbit that pose a threat to our planet.

As part of nature, there will be many other important approaches in the future, including the asteroid Apophis, on April 13, 2029. This will be an exciting opportunity for scientists. And even for casual observers, the close approach of the Apophis would be an amazing phenomenon, as the space rock may be slightly visible from the unpublished eye from some areas.

Bottom Line: Asteroid 2011 ES4 is expected to pass close to 0.3 or 30% of the Earth-Moon distance on September 1, 2020. But it can pass as far or near 0.19 lunar distance. The asteroid should pass close to 16:12 UTC on 1 September (12:12 pm EDT; translate UTC for your time).

Read more: Preparation of asteroid apophis

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