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STEREO SCIENCE CENTER

Important notice about reduced STEREO science operations

SECCHI Time-Elongation Plots

Below are time-elongation plots built up from SECCHI running difference images, known colloquially by some as "J-plots". Coronal mass ejections (CMEs) are seen as diagonal bright and dark bands running from lower-left to upper-right. The steepness of the band reflects the speed of the CME. Occasionally one can also see planets or bright stars as streaks in the plots.

These plots are built up from the SECCHI beacon images. 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 of the large compression factors used, these beacon images are of much lower quality than the actual science data.

Realtime resources:     Browse resources:

COR2 Behind, East limb

STEREO COR2 Behind, East limb, latitude +30

STEREO COR2 Behind, East limb, latitude 0

STEREO COR2 Behind, East limb, latitude -30

Plots revised: Saturday, 27-Sep-2014 12:26:32 EDT

COR2 Behind, West limb

STEREO COR2 Behind, West limb, latitude +30

STEREO COR2 Behind, West limb, latitude 0

STEREO COR2 Behind, West limb, latitude -30

Plots revised: Saturday, 27-Sep-2014 12:26:32 EDT

HI Behind, West Limb

STEREO HI2 Behind, West limb, latitude 0

Plot revised: Saturday, 27-Sep-2014 12:22:23 EDT

STEREO HI1 Behind, West limb, latitude 0

Plot revised: Saturday, 27-Sep-2014 11:51:12 EDT

COR2 Ahead, East limb

STEREO COR2 Ahead, East limb, latitude +30

STEREO COR2 Ahead, East limb, latitude 0

STEREO COR2 Ahead, East limb, latitude -30

Plots revised: Friday, 19-Dec-2014 16:31:07 EST

COR2 Ahead, West limb

STEREO COR2 Ahead, West limb, latitude +30

STEREO COR2 Ahead, West limb, latitude 0

STEREO COR2 Ahead, West limb, latitude -30

Plots revised: Friday, 19-Dec-2014 16:31:07 EST

HI Ahead, East limb

STEREO HI2 Ahead, East limb, latitude 0

Plot revised: Friday, 28-Nov-2014 22:12:10 EST

STEREO HI1 Ahead, East limb, latitude 0

Plot revised: Tuesday, 16-Dec-2014 12:11:35 EST

This page should automatically update every 5 minutes. Otherwise, use your browser's "reload" button to get the most recent plot.

The data on this page include telemetry collected by the following organizations:

  • NASA Deep Space Network
  • National Institute of Information and Communications Technology: Koganei, Japan
  • Centre National d'Etudes Spatiales: Toulouse, France
  • Amateur station DL0SHF, Kiel-Ronne, Germany
  • AMSAT-DL/Bochum Observatory, Germany

We would also like to acknowlege the past assistance from the following organizations:
  • 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-Jun-2010 14:50:22 EDT
Responsible NASA Official: [email address: Joseph.B.Gurman<at>nasa<dot>gov]
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