The out-of-the-ecliptic trajectory of the ESA-NASA Ulysses spacecraft reached maximum solar latitudes of 80 deg South (in September 1994) and 80 deg North (in July 1995). This spacecraft's unique trajectory presents us with an extraordinary opportunity for a leap forward in our understanding of how the solar corona interacts with the solar wind. For the first time, latitude can be treated as an independent variable for in situ measurements. During the first Ulysses orbit, we also have the remarkable soft X-ray observations from the Japanese Yohkoh spacecraft, which for the first time have enough sampling (temporal and angular) to define the structure of the entire visible corona, rather than just that part above the limb. We feel that these data, plus simultaneous observations from solar ground observatories and new material from shuttle experiments such as SPARTAN 201 and spacecraft such as WIND and SOHO, will significantly alter our views of solar-terrestrial relationships.
As a part of the organizational structure of the Inter-Agency Consultative Group (IACG), we have initiated a data-analysis campaign (IACG Campaign IV) based upon this opportunity. Each aspect of the campaign involves research workers from different related observational and theoretical programs. We are interested in research at a higher level than that of a single research paper, but which can be produced faster and more broadly-based than a typical review paper. One of the major tools of the campaign is the World-Wide Web. The Web acts as a place where the participants "meet" and exchange data and ideas, and as a place where the final results can be "published." The URL of the campaign homepage is