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Space Physics Data Facility (SPDF) is the NASA active and permanent archive for non-solar heliophysics data (solar data at SDAC), per the NASA Heliophysics Science Data Management Policy. SPDF is a project of the Heliophysics Science Division (HSD) at NASA's Goddard Space Flight Center. SPDF also provides multi-project, cross-disciplinary access to data to enable correlative and collaborative research across discipline and mission boundaries with present and past missions. Many datasets from current missions are updated regularly (even daily), including reprocessing older time periods, and SPDF only preserves the latest version. SPDF maintains the SSCweb database of spacecraft orbits, the OMNIweb cross-normalized database, and the Common Data Format (CDF) self-describing science data format and associated software.

News & Announcements
NOTICE: October 2023: ALL SPDF systems/services (CDAWeb, SSCWeb, OMNIWeb, CDF, etc.) will be unavailable from 10am - 2:00pm EDT Wednesday October 4th. Please plan your use of the systems/services accordingly.

August, 2023: Thirty two dosimeter measurement data sets from the Responsive Environmental Assessment Commercially Hosted (REACH) constellation are now available in the archive and in CDAWeb.

July, 2023: The Interstellar Boundary Explorer (IBEX) data are archived at SPDF at In addition, the datasets in Releases 2-17 have been converted into the CDF scientific file format with full ISTP metadata for easier analysis and available at The data are also available via various SPDF web services, including CDAWeb .

May, 2023: The PSP data have been extended to February 2023, covering Orbit 14, Encounter 14, and part of the inbound leg of Orbit 15. In addition, a new Fields Level 3 dust data set was added. Please check CDAWeb for the data and PSP inventory plot and annual inventory plots for details.

March, 2023: A new CDF version 3.9.0 distribution is now available. See the CDF home page for links to the software/documentation and the 3.9.0 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 send an email to .

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