200142EC

200142EC is a minor planet in the asteroid belt, located between the orbits of Mars and Jupiter. It was discovered on October 15, 1999, by the Lincoln Near-Earth Asteroid Research (LINEAR) project, an initiative of the Massachusetts Institute of Technology Lincoln Laboratory and the United States Air Force. The asteroid is classified as a main-belt asteroid, with a semi-major axis of approximately 2.5 astronomical units (AU), a perihelion distance of 1.9 AU, and an aphelion distance of 3.1 AU. Its orbital period is roughly 4 years.

The size of 200142EC is estimated to be around 1.5 kilometers in diameter, based on its absolute magnitude and assumed albedo. The asteroid's rotation period is approximately 5.5 hours. Its spectral type is classified as X, indicating a primitive composition, possibly carbonaceous. The asteroid's orbit is inclined at about 15 degrees to the ecliptic plane, and its eccentricity is relatively low, at 0.24.

200142EC has not been observed to have any known moons or companions. Its orbit does not bring it close to any major planets, and it is not considered a potentially hazardous asteroid due to its size and orbital characteristics. The asteroid's designation, 200142EC, is a temporary designation assigned by the Minor Planet Center, which will be replaced with a permanent number and name once its orbit is well-determined and it is no longer considered a near-Earth object.