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Polar, Wind and Geotail's Project overview. In the 1990s, collaborations between NASA, the European Space Agency (ESA), and the Institute of Space and Astronautical Science (ISAS) of Japan resulted in the International Solar-Terrestrial Physics (ISTP) Science Initiative. Polar, Wind and Geotail are a part of this initiative, combining resources and scientific communities to obtain coordinated, simultaneous investigations of the Sun-Earth space environment over an extended period of time.

Wind    |     Wind Near-Realtime Data    |     Geotail

Polar (operations ended 2008 April 28)

News & Announcements
page icon  New Missions Supported in CDAWeb and SSCWeb

Data from all THEMIS instruments and the SWAVES experiments on STEREO A/B are now available via CDAWeb. THEMIS orbit data (including long range predicts) are now supported in SSCWeb, STEREO orbits are supported in both SSCWeb and HelioWeb.

  Email list for PWG Announcements

Please sign up for an email list of announcements related to PWG data. Postings to will be very infrequent but are especially useful to regular users of the data. To subscribe, send an email to

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