JPL DE430

JPL DE430 is a highly accurate numerical model developed by NASA's Jet Propulsion Laboratory to predict the positions and motions of celestial bodies, such as planets and the Moon, over time. It provides precise ephemeris data used for spacecraft navigation, astronomical research, and timekeeping. By accounting for gravitational influences and complex astronomical factors, DE430 enables scientists and navigators to determine where planets will be in the sky at any given moment, ensuring precise planning and observation. Its high accuracy makes it essential for modern astronomy, space missions, and applications requiring exact celestial positioning.