The above image is a GOES X-ray Flux plot, containing 5-minute averages of solar X-ray output in the 1-8 Angstrom (0.1-0.8 nm) and 0.5-4.0 Angstrom (0.05-0.4 nm) passbands. Data from the SWPC Primary GOES X-ray satellite is shown. As of February 2008, no Secondary GOES X-ray satellite data is available. So some data dropouts will occur during satellite eclipses. Image Credit: NASA/SWPC Boulder, Colorado, USA
The solar activity for August 21st was very low. There were a few B-class flares. On the labeling front, three new Active Regions were designated: AR 1550, AR 1551, and AR 1552. And several coronal mass ejections (CMEs) were observed, but none are headed toward Earth. Forecast: Solar activity is expected to range from very low to low through August 24th.
Earth's geomagnetic field has been quiet. Forecast: The geomagnetic field is expected to be predominately quiet through August 24th. Stay tuned...
To monitor solar flare activity minute by minute, visit the "Today's Space Weather" page of NOAA's Space Weather Prediction Center (www.swpc.noaa.gov).
To learn more about the sun and to stay current on solar activity, visit the mission home pages of the Solar Dynamics Observatory (SDO) (sdo.gsfc.nasa.gov), the Solar and Heliospheric Observatory (SOHO) (sohowww.nascom.nasa.gov), the Advanced Composition Explorer (ACE) (www.srl.caltech.edu/ACE), and the Solar Terrestrial Relations Observatory (STEREO) (stereo.gsfc.nasa.gov).
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