924160

924160 is a numerical identifier that appears in various contexts, primarily within the realm of astronomy and space exploration. It is most notably associated with the asteroid **2003 SD220**, a near-Earth object (NEO) that has been studied extensively due to its potentially hazardous trajectory. The designation "924160" is not an official name but rather a provisional designation assigned during its discovery in 2003 by astronomers using the Lincoln Near-Earth Asteroid Research (LINEAR) program.

2003 SD220 is classified as a potentially hazardous asteroid (PHA) due to its size—estimated to be between 1.5 and 3 kilometers in diameter—and its close approach to Earth’s orbit. Its orbit is highly elliptical, with a period of approximately 12 years, and it has been observed multiple times during its close encounters with Earth. One of its most notable approaches occurred in December 2018, when it passed within about 28 million kilometers of Earth, offering astronomers a rare opportunity for detailed observation.

The asteroid’s designation "924160" is part of a numerical coding system used to track and catalog celestial objects. The first three digits (924) refer to the year of its discovery (2009, adjusted for a 100-year cycle), while the subsequent digits (160) represent its sequential discovery within that period. However, due to its significance, it has also been informally referenced by this number in scientific discussions.

Beyond its astronomical importance, 2003 SD220 has been the subject of theoretical studies regarding planetary defense strategies, as understanding its orbit and composition could aid in developing methods to mitigate potential future impacts. Its study contributes to broader efforts in monitoring and characterizing near-Earth objects to assess their risks to Earth.