Asteroid today: 100-foot Planet-killer space rock hurtling towards Earth! NASA alerts

    NASA has issued an asteroid warning against a huge asteroid which is hurtling towards the planet. Know what the space agency said.
    By: HT TECH
    | Updated on: Sep 22 2022, 11:10 IST
    In Pics: This fearsome and ugly asteroid hurtling towards Earth today; collision likely?
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    1/6 Check out what NASA says about the scary Asteroid 2020 PT4 which is set to pass very close to Earth today, September 15. (Pixabay)
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    2/6 NASA has warned that an asteroid named Asteroid 2022 SH is headed straight for Earth today. The asteroid was spotted by NASA’s Planetary Defense Coordination Office, which is responsible for monitoring the skies and keeping a watch on various Near-Earth Objects (NEOs). (NASA)
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    3/6 he asteroid is set to make its closest approach to Earth today, September 20, at a distance of 3 million kilometers. The asteroid is already on its way towards Earth travelling at a staggering speed of 27,288 kilometers per hour. (Pixabay)
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    4/6 Asteroid 2022 SH was discovered on September 16 2022 and it belongs to the Apollo group of asteroids. According to the-sky.org, the asteroid completes 1 orbit around the Sun in 999 days. Its farthest distance from the Sun is 436 million kilometers while the nearest distance is 149 million kilometers. (Pixabay)
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    5/6 NASA keeps a watch on these asteroids by studying data collected by various telescopes and observatories such as the Pan-STARRS, the Catalina Sky Survey and the NEOWISE telescope. NASA also has a NEO Surveyor mission planned for launch in 2026 to gain even greater in-depth data using a new orbiter. (Pixabay)
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    6/6 NASA also has a new impact monitoring system in place which uses an algorithm called Sentry-II to calculate the impact risk of Near-Earth Objects. NASA can track the orbital path of the asteroid using this infrared data and can even predict its orbit years into the future. (HT_PRINT)
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    Asteroid danger! Know what NASA says about this huge asteroid hurtling towards Earth. (Pixabay)

    Another day another asteroid heading for Earth, it has been the story of this month so far. 5 asteroids have passed by Earth closely within the last two days and now NASA has issued an alert that one more is already on its way. Asteroids are Near-Earth Objects (NEOs) which are often found orbiting the Sun in the main asteroid belt near Jupiter. Asteroids are the most common NEOs which come near the Earth's orbit. Most of them burn up and disintegrate before reaching the planet but some can still pass through.

    Asteroid 2022 SK1 hurtling towards Earth today

    Asteroid 2020 SK1 is part of the Apollo group of asteroids. According to the-sky.org, this asteroid takes almost 734 days to complete one orbit of the Sun, during which its farthest distance from the Sun is 295 million kilometers and nearest distance is 151 million kilometers.

    Asteroid 2020 SK1 is heading for Earth today, September 22 at a blistering speed of 30,204 kilometers per hour, according to NASA. This 100 feet wide asteroid will make its closest approach to the planet at a distance of nearly 2.7 million kilometers. Although Asteroid 2020 SK1 is not expected to impact the Earth, it has still been classified as a Potentially Hazardous Object due to the close proximity by which it will pass Earth.

    A slight deviation in its path due to interaction with the planet's gravitational field could change its trajectory and send it hurtling towards the Earth.

    How is an Asteroid Orbit Calculated?

    An asteroid's orbit is computed by finding the elliptical path about the sun that best fits the available observations of the object using various space and ground-based telescopes such as NASA's NEOWISE telescope and its brand-new Sentry II algorithm. That is, the object's computed path about the Sun is adjusted until the predictions of where the asteroid should have appeared in the sky at several observed times match the positions where the object was actually observed to be at those same time.

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    First Published Date: 22 Sep, 11:10 IST
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