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The SPDF is a project of the Heliospheric 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

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on  New CDF Version 3.5.0 Released

NASA's Space Physics Data Facility (SPDF) is pleased to announce the release of Version 3.5.0 of the CDF software. In addition to many minor software updates and fixes, the software now includes the open source version of zlib for doing gzip compression, new support for Visual Basic for Windows, additional C/Fortran functions and enhancements to the toolkit programs. For further details please read the CDF release notes.

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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