117503

117503 is a minor planet in the outer region of the asteroid belt, approximately 3.4 kilometers in diameter. It was discovered on September 2, 2005, by astronomer Roy A. Tucker at the Goodricke-Pigott Observatory in Australia. The asteroid is named after the Goodricke-Pigott Observatory, where its discoverer works.

The asteroid's orbit is characterized by a semi-major axis of 3.13 astronomical units, an eccentricity of 0.13, and an inclination of 11 degrees to the ecliptic. It completes one orbit around the Sun every 5.4 years. 117503 is a member of the Flora family, a large group of asteroids with similar orbital characteristics.

The asteroid's surface is believed to be composed of carbonaceous chondrite material, which is common among asteroids in the outer asteroid belt. Its spectral type is C, indicating a carbon-rich composition. 117503 has a low albedo, which means it reflects a small percentage of the sunlight that falls on it.

117503 has not been visited by a spacecraft, and its physical properties are not well understood. However, it is a subject of interest to astronomers studying the composition and evolution of asteroids in the outer solar system. Its discovery and study contribute to the broader understanding of the asteroid belt and the origins of the Solar System.