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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: June 5, 2019: GOLD Level-2, Channel A L1C and L1D files are available in the SPDF archive. L2: initial release includes TDISK, TLIMB, and O2DEN data (through 3/14/2019) and ON2 data (through 12/31/2018) in NetCDF format. In addition, the L1C NI1 (night) data and L1D NI1 data has been updated to version 02. This update corrects the previous issue with incorrect radiances being reported in the data files.

NOTICE: July 25, 2018: Per a US Government directive, the SPDF web sites and web services (SSCWeb, OMNIWeb, CDAWeb, etc.) are now using the HTTPS protocol, with only TLS 1.1 and TLS 1.2 connections allowed. Some web service clients (IDL 7, Java 6, etc.) will no longer be able to connect. FTP services will be changing to only allow TLS-based connections (FTPS, FTP-SSL) in the near future.

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 3.7.1 Released

Common Data Format (CDF) Version 3.7.1 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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