On September 24 and 25, the Space Physics Data Facility (SPDF) renamed and restructured its FTP and HTTP accessible directories. This newly unified structure merges CDAWeb files already served by SPDF with legacy heliophysics data holdings that have been served by the National Space Science Data Center (NSSDC) on nssdcftp.gsfc.nasa.gov. The responsibility for the final archiving of heliophysics has been transferred from NSSDC to SPDF (for non-solar instruments) and to Solar Data Analysis Center (SDAC) (for solar instruments). SPDF will also serve legacy solar instrument data previously served by NSSDC on at least an interim basis.
All heliophysics data and other files previously accessible separately from NSSDCftp or CDAWeb are accessible from any of the addresses
Other SPDF services are unchanged.
Any databases or services that point to specific server and directory locations on CDAWeb and NSSDCftp will need to update their records to these new locations. A list of directories as now moved (current and new locations) is posted here.
Changes to CDAWeb data directories are listed first and directories moved from NSSDCftp are listed second. Data now on NSSDCftp may continue to be available on NSSDCftp for a limited time after this official move.
SPDF regrets that this level of re-naming and re-structuring of our data holdings cannot be made fully transparent to users. Please report any problems and discrepancies to us at email@example.com.
[2012-Jun-20]:Let's Not Lose Our Data :
Along with the Solar Data Analysis Center (SDAC), the Space Physics Data Facility (SPDF) is charged with ensuring the long-term preservation and ongoing availability of important data from NASA heliophysics investigations, with interest as well in other data relevant to current NASA heliophysics science objectives.
SPDF is concerned that important data from older missions (past and current) are at increasing risk of being lost as projects and their funding expire, and as the scientists responsible for the data move to new missions, change responsibilities or retire. So I ask that you please carefully consider the status of any data you may now hold:
Everyone with a direct role in collecting or analyzing space data knows the investment in time and resources represented in such data. For the data you hold and work with, you know the important science in your data that may still remain unexploited. Very high time resolution measurements and particle distribution functions are among the kinds of data that could be of special interest.
If you have or know of existing heliophysics data that might be a concern, please contact me as the Project Scientist for SPDF. We welcome the opportunity to work with you to preserve such data and keep it available for future use by the heliophysics research community.
[2012-May-21]: Changed Responsibilities in Archiving NASA Heliophysics Data:
As many of you probably already know, NASA’s Heliophysics Science Division at NASA HQs issued a revised Heliophysics Science Data Management Policy in 2009 (see http://hpde.gsfc.nasa.gov/Heliophysics_Data_Policy_2009Apr12.html). This revised policy redefined the Heliophysics role of the National Space Science Data Center (NSSDC) at Goddard to be solely that of a “deep archive” and defined a new role for the Space Physics Data Facility (SPDF) to be one of two “active Final Archives” charged to work with NASA HQs to ensure the long-term accessibility and availability of all important NASA heliophysics data.
This policy has generally superseded all prior definitions of the archiving role of NSSDC in heliophysics mission PDMPs or other arrangements. Delivery of all archival products from Heliophysics missions or investigations should be expected to be to the SPDF rather than NSSDC. If you have any concerns or questions, please contact us by phone or through the "Feedback" link on this page.
[2012-Apr-17]: New CDF Version 3.4 Software Released :
CDF now supports two new data types, INTEGER*8 (signed 8-byte integers) and time_TT2000 (which correctly and unambiguously handles leap seconds and carries nanosecond precision in 8 bytes). CDF 3.4 also includes numerous bug fixes, security improvements and performance enhancements. USERS ARE STRONGLY URGED TO UPGRADE TO THIS NEWEST RELEASE AT THEIR EARLIEST CONVENIENCE. Please see http://cdf.gsfc.nasa.gov. Updates for Perl, IDL, Matlab and Java interfaces are also available on this site.
[2012-Apr-17] SSCWeb and the 4D Orbit Viewer Are Running on a More Powerful Server:
The SSCWeb service and its database have been fully converted to Linux and are now operational on a new server. Users should see greatly improved performance of the SSCWeb user (http://sscweb.gsfc.nasa.gov) and web services (http://sscweb.gsfc.nasa.gov/WebServices/) interfaces, as well as server-side database operations and computations of the 4D Orbit Viewer (http://sscweb.gsfc.nasa.gov/tipsod/).
[2012-Apr-17] SPDF's Partnership with the RBSP and MMS Missions:
Both RBSP and ( MMS/ MMS-SMART) have decided to use to our CDF format for their public science data and to supply their public data to our CDAWeb service as part of their commitment to ensure their data are properly archived and to make their science data fully public and easily accessible. We are gratified that these major new projects find our services useful and relevant, and we look forward to serving these data as they become available. Note RBSP's scheduled launch is later this summer
[2009-Sep-03] SSCWeb's Important Cluster Ephemeris Changes:
The old Cluster ephemeris data has been moved to "Cluster-* (superceded)" and the new, up to date ephemeris is called "Cluster_*". Download pdf for the details. If you have any questions, after reading the above documentation, please email firstname.lastname@example.org
The SPDF is based at NASA's Goddard Space Flight Center in Greenbelt, MD U.S.A. and is a project with the Heliophysics Science Division of Goddards Sciences & Exploration Directorate . The project is headed by Dr. Robert E. McGuire.