Important notice about STEREO Behind
STEREO In-Situ and Radio Space Weather Beacon Data
Shown here are plots of the latest in-situ particle and fields data from the
STEREO IMPACT and PLASTIC instruments, and radio data from SWAVES. The
STEREO space weather beacon telemetry mode is a very low rate, highly
compressed data stream broadcast by the spacecraft 24 hours per day. These
data are used for space weather forecasting. Because the data are produced
in real-time, the calibrations may not match those used for the final data
IMPACT/PLASTIC solar wind data
Plot revised: Tuesday, 19-Feb-2019 06:04:47 EST
IMPACT solar energetic particle data
Please see this important notice regarding
STEREO-SIT-A matrix rate anomaly after September 23, 2018
instrument turn off.
Plot revised: Tuesday, 19-Feb-2019 06:04:48 EST
SWAVES radio data
Plot revised: Tuesday, 19-Feb-2019 06:04:49 EST
This page should automatically update every 5 minutes. Otherwise, use your
browser's "reload" button to get the most recent plot.
Radial-Tangential-Normal (RTN) coordinates are defined such that
the +X axis points from sun center through the satellite (radial), and
the +Z axis points along the projection of the solar North pole (normal).
The +Y axis completes the right-handed coordinate system, and points
towards the solar West limb (tangential).
The data on this page include telemetry collected by the following
We would also like to acknowlege the past assistance from the following
- NASA Deep Space Network
- National Institute of Information and Communications Technology: Koganei,
- Centre National d'Etudes Spatiales: Toulouse, France
- Amateur station DL0SHF, Kiel-Ronne, Germany
- AMSAT-DL/Bochum Observatory, Germany
- Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA
- Korean Space Weather Center, Jeju, South Korea
- Rutherford Appleton Laboratory: Chilbolton, UK
In addition, we wish to acknowlege
- Amateur station KA9Q, Phil Karn, for writing and donating the decoding
software used at the ground stations.
- NOAA Space Weather Prediction Center for organizing and scheduling the
ground station network.
Last Revised: Monday, 07-Jan-2019 14:36:51 EST
Responsible NASA Official:
Webmaster: Kevin Addison