That was explained by the engineer. Majid Abu Zahra
On Saturday, March 6, 2021, the Earth will witness the passage of the asteroid Apophis, with a diameter of about 370 meters, at a distance of 16,455,766 kilometers – almost 40 times the distance between the Earth and the moon – at 04:15 AM Saudi time (01:15 GMT) and will not collide with our planet, but it will be In preparation for the big approach in 2029.
The asteroid Apophis will be in a good position for observation, which will give an opportunity to study it, especially using radar, as a strong beam will be sent to the asteroid, and then it will use a radio telescope to capture the echo that bounces, and that complex data will be processed, and the result is a sound wave-like image that will provide detailed information about this asteroid. With the aim of improving predictions of what might happen after 8 years.
In general, the asteroid Apophis will be very faint around Saturday, as it cannot be seen through small telescopes, but it is within reach of telescopes 12 inches in diameter and larger, and perhaps even smaller telescopes using sensitive cameras.
These observations of the asteroid Apophis will improve our knowledge of its shape and its rotation around its axis, and this will help reduce the uncertainty of the asteroid’s orbit resulting from the Yarkovsky effect.
Apophis has been closely monitored since its discovery in 2004, and it became known that a collision with Earth is unlikely in 2029 and 2036, but recent results indicate that there is very little chance of a collision in April 2068, although previous calculations in 2016 excluded the probability of collision in 2068. But new results will appear soon.
Apophis, like many other asteroids, is classified as a potentially dangerous asteroid, and according to some estimates, an asteroid the size of Apophis collides with Earth about once every 80,000 years.
Recently, there are two asteroids colliding with Earth, one of which destroyed the Siberian Tunguska forests in 1908, while the other crashed in the sky over Chelyabinsk, Russia in 2013, but they are nothing compared to Apophis, it is 300 times larger than the Tunguska asteroid, and it is 5000 times larger than the Chelyabinsk asteroid, so This is an object that attracts attention.
Now, scientists will use Apophis asteroid approach to test their ability to deal with potentially dangerous asteroids, which will improve planetary defense, a program that focuses on identifying space rocks that may pose a threat to Earth, mapping their exact trajectories and seeing how their orbits compare to Earth’s.
If computer models show the orbits of the asteroid and the Earth will reach the same place at the same time, then things become dangerous, especially when the space rock is large, and this is the kind of scenario that ended the age of the dinosaurs, but if it is determined that a dangerous asteroid Apophis or other asteroid long enough before collision , Something could theoretically be done to divert it.
Success in preventing damage from an asteroid collision will depend on the timely detection of the threat, which requires practice and gaining experience, but although scientists have identified more than 25,000 cryogenic asteroids from Earth so far, the majority of them are too small to cause much. Of anxiety, so while there are a lot of asteroids orbiting Earth’s orbit, most of them aren’t big enough or close enough to trigger realistic existential anxiety.
Making the most of the 2029 Apophis Approach will be based on the fundamental data collected this year, and it is an excellent opportunity to test international capabilities to detect and track NEOs and assess the collective response to any real threat to any asteroid in the future.