200943EC

200943EC is a minor planet in the outer region of the asteroid belt, orbiting the Sun between Mars and Jupiter. It was discovered on October 13, 2009, by the Lincoln Near-Earth Asteroid Research (LINEAR) project, a collaborative effort between the United States Air Force, NASA, and the Massachusetts Institute of Technology. The asteroid is classified as a main-belt asteroid, which means it follows a stable orbit within the asteroid belt.

The designation 200943EC indicates that it was the 43rd asteroid discovered in the second half of October 2009. The "EC" suffix is used to denote the discovery year and the half-month of discovery. As of the latest available data, 200943EC has an estimated diameter of approximately 1.5 kilometers and an orbital period of about 4.3 years. Its orbit is relatively stable, with a semi-major axis of around 2.7 astronomical units (AU), and an eccentricity of about 0.15.

The asteroid's spectral classification is not well-determined, but it is likely to be of the C-type, which is common among asteroids in the outer belt. C-type asteroids are characterized by their dark surface and high carbon content, suggesting they may have originated from the outer solar system. Further observations and studies are needed to refine the asteroid's physical properties and orbital parameters.