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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: May 23, 2017: The SPDF systems (CDAWeb, SSCWeb, OMNIWeb, VSPO, etc) and web services will be unavailable around 11:30am EDT. Please plan your use of the systems accordingly.

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

NOTICE: February 13, 2017 HTTPS: The SPDF web sites (CDAWeb, OMNIWeb, SSCWeb, etc.) will be automatically redirecting HTTP requests to use the HTTPS protocol. Please begin using the HTTPS protocol directly 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.

page icon  New CDF Version Released

Common Data Format (CDF) Version is now available. This release contains a minor change to the earlier release of V3.6.3.0 and includes a new leap second added for 1/1/2017. Please read the change notes that describe the changes made in this release, as well as all previous releases. Updates for Perl, IDL, Matlab, and Java interfaces and the SKTeditor CDF editor are also available.

page icon  New CDF Version 3.6.3 Released

Common Data Format (CDF) Version 3.6.3 is now available. We strongly urge all CDF users to promptly upgrade their CDF software to better ensure the correct handling of times after the 2017 January 1st leap second. Updates for Perl, IDL, Matlab, and Java interfaces and the SKTeditor CDF editor are also available. CDAWeb is receiving and also producing CDF V3.6 files. 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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