STEREO Data Server at UCLA
UCLA provides ASCII files of the Level 1 to Level 3 data.
Level 1 Magnetometer Data
These data are available in spacecraft and RTN coordinates for all of the mission to date in the following resolutions:
  • 32 Hz burst mode - not continuous
  • 8 Hz - normal highest rate data.
  • 1 Hz overlapped 2-second averages.
Level 2 Plasma and Magnetic Field Data
Data from the magnetometer and the PLASTIC plasma sensor are available at 1 minute, 10 minute, and 1 hour resolutions in RTN and spacecraft coordinates.
Level 3 Event Lists

The IMPACT Investigation
The IMPACT (In-situ Measurements of Particles and CME Transients) investigation targets the major STEREO science goals of 3D corona and solar wind structure, CME origins and interplanetary (ICME) evolution, Solar-terrestrial coupling, Solar Energetic Particle acceleration, and the solar magnetic flux cycle. IMPACT's strategy uses comprehensive in-situ measurements to complement the STEREO images, together with models to tie the in-situ measurements and images together.

Our international teaming approach has enabled the IMPACT investigation to include both plasma electron and energetic particle instruments determine the bulk parameters of the solar wind electrons and the flux and energy distribution of energetic particles from solar wind energies up to many MeV, including elemental abundance. The combined instrument package is capable not only of determining the strength and orientation of the magnetic field within ICMEs and the ambient solar wind at two different locations, but also determines whether the local field is rooted at the Sun at one or both ends or is disconnected from the Sun entirely. Suprathermal electron and ion detectors included in the IMPACT package add the capability to determine whether the local magnetic connections to the Sun include flaring active regions. The SEP instruments provide directional information important for both remote-sensing shock location and shape, and determining SEP maximum fluxes in cases where there is considerable anisotropy not in the direction of the nominal Parker Spiral as occurs during passage of ICMEs. In addition, a coordination with the Bougeret SWAVES investigation links in the radio remote sensing observations that herald oncoming major events, enhances STEREO science return by enabling coupled in-situ measurements by the antennas and plasma/field instruments.

Go to STEREO Beacon Data:

Additional relevant sites
Go to IMPACT homepage:

Go to STEREO Mission homepage:

Go to STEREO Science Center: