Virtual Heliospheric Observatory

The Virtual Heliospheric Observatory (VHO) is uniting a number of distributed repositories for heliospheric data. VHO is a project within NASA's Heliophysics Data Environment and is maintained within the Heliospheric Physics Laboratory at NASA's Goddard Space Flight Center. The VHO utilizes the SPASE data model and provides uniform metadata for heliopheric data sets. A prominent feature of the VHO is the query interface, which provides uniform access to the distributed data sets within VHO.

The VHO actively collaborates with the Virtual Energetic Particle Observatory and the Virtual Waves Observatory to enable access to energetic particle and waves data, respectively.

How Can You Find Heliospheric Data?

Number of search interfaces is available with various degree of complexity and flexibility. The quickest way to start may be with the search interface at the top of this page: Simply select the time range, region, and other constraints to get the desired data.

Available Search Interfaces

Basic Relational SearchA sequence of simple menus offers a selection from available data resources.
Advanced Relational SearchUse the Advanced Relational query interface to build complex queries with multiple constraints, nested conditions, etc. Search conditions can include, for example, parameter values, space regions, or resource names.
Data Availability GraphThe Data Availability Graph displays when and how much data is available for each VHO resource. Resources can be hidden, re-arranged, time zoomed in or out, etc., and downloaded.

What Data Are Available in VHO?

Where Else Can I Look for Data?

The best place to start looking for additional data resources is the Virtual Space Physics Observatory because it contains the most comprehensive list of space physics resources.

If you didn't find what you were looking for at VHO, please let us know via the Contact menu or the Report Problem tab on search pages.

Services

 

Recent Data Updates

Changed OnData ProductFilesTime Range
2013 Feb 1ACE Cosmic Ray Isotope Spectrometer56031997-08-27 ... 2012-12-28
ACE Ephemeris12012-07-28 ... 2012-11-23
ACE Magnetic Field 16-Second Data1622012-03-06 ... 2012-08-14
ACE SIS 256-sec Level 2 Data272012-12-01 ... 2012-12-27
ACE Solar Isotope Spectrometer272012-12-01 ... 2012-12-27
ACE SWEPAM 64-Second Solar Wind Ion Moments812012-06-22 ... 2012-09-10
OMNI High Resolution Data482009-01-01 ... 2012-12-31
WIND 3DP PESA proton and ion onboard calculated moments1072012-08-20 ... 2012-12-13
WIND EPACT 92-sec KP Fluxes212013-01-09 ... 2013-01-29
WIND MFI 3s Magnetic Field Data2522012-04-01 ... 2013-01-11
WIND Predicted Positions1232012-11-07 ... 2013-03-09
2013 Jan 11ACE Electron Proton Alpha Monitor852012-07-15 ... 2012-10-07
ACE EPAM 5-min Level 2 intensities1202012-06-28 ... 2012-10-25
ACE SIS 256-sec Level 2 Data1082012-08-15 ... 2012-11-30
ACE Solar Isotope Spectrometer1082012-08-15 ... 2012-11-30
OMNI 5-min Data482009-01-01 ... 2012-12-31
OMNI Hourly Data122012-01-01 ... 2012-12-31
WIND EPACT 92-sec KP Fluxes272012-12-13 ... 2013-01-08
WIND SWE Averaged Electron Pitch Angle Distribution (12-15s rate)1302012-07-26 ... 2012-12-02
WIND SWE Electron Pitch-Angle Distributions (12-15s rate)1302012-07-26 ... 2012-12-02
WIND SWE Electron Quadrature Moments (12-15s rate)1302012-07-26 ... 2012-12-02
2013 Jan 10Cassini Radio and Plasma Wave (RPWS) Key Parameter 60-sec Data1721997-10-25 ... 2012-01-05
Cassini Radio and Plasma Wave (RPWS) Low Rate Full Resolution Spectral Density1721997-10-25 ... 2012-01-05
2013 Jan 4Geotail Ephemeris562012-10-29 ... 2012-12-23
Geotail KP Magnetic Field Data (64sec)162012-12-09 ... 2012-12-24

More (older) data updates...