Asteroid 99942 Apophis is defined as Near Earth Object (NEO) whose diameter is about 335 meters or 1100 feet. This asteroid was identified in 2004. This is the most dangerous harmful asteroid that has created an impact on the earth. This toxic impact has altered after identification of Apophsis with the assistance of eminent astronomers. The orbit of the rotation of this asteroid has also detected as a result of this, the harmful impacts of this asgteriod has minimized with the help of these data. Based on the observations of the Apophis, the detrimental effects of Asteroid 99942 have identified with the predictions on 2029, 2036, 2068. Astronomers identified the radar  based observations to define the orbit of the rotation around Sun. Its impact on 2068 has detected with the help of this data from radar observations of Asteroid 99942. 

Figure 1: Asteroid 99942 Apophis 

The astronomers of NASA’s Center for Near-Earth Object Studies (CNEOS) has pointed out the plausible actions to become lower the effects of the Asteroid 99942 on 2068. This has calculated with the aid of NASA’s Jet Propulsion Laboratory in Southern California. The uniformity of  Apophis’ orbit has sagged from a long distance to a very short distance based on the forecast of 2029. The estimated position of this asteroid on 2029 has made more cautious the astronomers. They are very much worried regarding the possible way and velocity of movement. As a result of this Apophysis has removed from the risk list also. 

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Ground based RADARs along with optical telescopes have characterized th orbit of near-Earth based objects with judging its impacts. CNEOS has computed high precision based orbits to support the NASA’s Planetary Defense Coordination Office. The emininet astronomers of NASA has already utilized 70-meter or 230-foot based radio antenna at Deep Space Network’s Goldstone Deep Space Communications Complex near Barstow, California. This has tracked the motion of Apophis, as a result of this, the precautionary measure have adopted. Apophis is present 17 mile km or 10.6 million miles from earth. This campaign has not only guided the astronomers to reduce the potential hazard but also ptrovides an opportunity for the scientific research. 

Figure 2: Orbits of Apophis around other planets 

Goldstone has worked through 330 foot or 100 meter with Green Bank Telescope in West Virginia to capture the images of Apophis. The signal was transmitting through Goldstone as well as was receiving through Green Bank. This is a bistatic experiment that created 2x strength of the strength of receiving signal. The radar data analyst team has always precisely monitored the data to reduce the effects of the asteroid. This asteroid is larger than 200 meters or 66o feet. 

Astronomers of NASA have worked for better understanding regarding the rotation rate as well as spin axis. This has helped to understand the orientation of this asteroid which has encountered the gravitatioinal force of Earth by 2029. This has modified the spin related states related to the cause of “asteroid quakes.”

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