International Astronomical Union Commission 4 : (Ephemerides)

The current home web site for Commission 4 is

http://iaucom4.org/index.html

Observational Data for Planetary and Lunar Ephemerides

Data located at the CalTech/Jet Propulsion Laboratory, Pasadena
Data located at the Bureau des Longitudes, Paris

Observational Data for Planetary Satellite Ephemerides

Data located at the CalTech/Jet Propulsion Laboratory, Pasadena This page was last updated on 09 October 2012