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The minimum orbit intersection distance (MOID) between an asteroid and the Earth is the distance between the closest points of their orbits. This first check is a coarse measure that does not allow an impact prediction to be made, but is based solely on the orbit parameters and gives an initial measure of how close to Earth the asteroid could come.
An S-type asteroid, 1988 EG orbits the Sun at a distance of 0.6–1.9 AU once every 1 years and 5 months (523 days). Its orbit has an eccentricity of 0.50 and an inclination of 3° with respect to the ecliptic. [1] The asteroid has an Earth minimum orbit intersection distance (MOID) of 0.0243 AU (3,600,000 km). In combination with its size ...
2024 UQ, designated formerly as A11dc6D, was a one-meter meteoroid that struck the Earth's atmosphere and burned up harmlessly on 22 October 2024 above the Pacific Ocean off the coast of California. 2024 UQ is the tenth impact event that was successfully predicted, which was discovered by the ATLAS survey.
The mathematical methods for orbit determination originated with the publication in 1687 of the first edition of Newton's Principia, which gave a method for finding the orbit of a body following a parabolic path from three observations. [1] This was used by Edmund Halley to establish the orbits of various comets, including that which bears his ...
This asteroid travels in both the main-belt and in the near-Earth region. It passed Earth on 29 June 2024 at a distance of 184,000 miles (295,000 kilometers). That distance is about 0.77 lunar distances (LD). [2] The close approach with Earth changed 2024 MK's orbit, shortening its orbital period by about 24 days.
1950 DA has one of the best-determined asteroid orbital solutions. This is due to a combination of: [5] an orbit moderately inclined (12 degrees) [2] to the ecliptic plane (reducing in-plane perturbations); high-precision radar astrometry, which provides its distance and is complementary to the measurements of angular positions; a 74-year ...
The asteroid with the greatest chance of impacting Earth in 2023 is 2016 LP 10 (4-meters in diameter) with less than a 1-day observation arc. [8] It had a 1:53,000 chance of impact on 10 June 2023, but was expected to be around 0.6 AU (90 million km ) from Earth on that date. [ 10 ]
The potentially hazardous asteroid has a minimum orbit intersection distance with Earth of 0.0256 AU (3,830,000 km) or 10 lunar distances. It passes within that distance of Earth 15 times between 1900 and 2100, most recently on 21 January 2007, at 29.6 Gm. The next time will be in 2027 at 28.6 Gm. [1]