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The SPDF is a project of the Heliophysics Science Division (HSD) at NASA's Goddard Space Flight Center. SPDF consists of web-based services for survey and high resolution data and trajectories. The Facility supports data from most NASA Heliophysics missions to promote correlative and collaborative research across discipline and mission boundaries. Read More here.

News & Announcements

NOTICE: March 2018: The SPDF web sites and web services (SSCWeb, OMNIWeb, CDAWeb, etc.) use the HTTPS protocol. Please use the HTTPS protocol for accessing our web sites and web services as soon as possible and contact us with any problems. FTP data access is not affected at this time. For further information, please read the SPDF HTTPS announcement.

NOTICE: The MMS Level 2 data products are available via SPDF FTP/HTTPS and all data sets are available in CDAWeb. The range of publicly available MMS data will continue to be updated weekly.

page icon  New CDF Version 3.6.4 Released

Common Data Format (CDF) Version 3.6.4 is now available. Updates for Perl, IDL, Matlab, and Java interfaces and the SKTeditor CDF editor are available. For further details and changes, see the CDF release notes.

  Email list for SPDF Announcements

Please sign up for an email list of announcements related to SPDF software and services (changes, upgrades, outages). Postings to will be very infrequent but are especially useful to regular users of our web services and Java clients (CDAWeb+, xSonify, TIPSOD). To subscribe, go to or send an email to

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