M. Peredo Raytheon STX, Code 632, NASA/Goddard Space Flight Center, Greenbelt MD 20771 1-301-286-1526 Mauricio.Peredo.1@gsfc.nasa.gov

R.E. McGuire Code 632, NASA/Goddard Space Flight Center, Greenbelt MD 20771 1-301-286-7794 Robert.E. McGuire.1@gsfc.nasa.gov

The International Solar Terrestrial Physics (ISTP) Program involves the coordinated operation of a large number of spacecraft missions, ground-based observatories and theoretical investigations. As a result, a wealth of highly-accessible data products and services exists, providing a unique basis for exciting new global-scale studies of the Sun-Earth system. This communication, and the companion Part II paper, provide an overview of the extensive data, services and tools available to the international space physics community to further correlative studies.

Part I of this overview covers questions of how to:

1. Find times of interesting configurations (spacecraft and spacecraft with ground stations),
2. Find times with interesting data for detailed analysis,
3. Find out about (and join) ongoing science campaigns,
4. Acquire tools to access and use ISTP data

Computer access to the various systems and services will be available and organized for demonstration. Key WWW home page URLs to access these capabilities include:

ISTP Project:                 http://www-istp.gsfc.nasa.gov/
Space Physics Data Facility: SPDF