Monday, September 10, 2012

Sept 10th, Sol Going Back to Bed...


The above X-ray image of the sun was taken September 10th at 01:40:00 UTC by the Solar X-ray Imager (SXI) aboard the GOES-15 satellite. Image Credit: NOAA

For the end of September 8th and most of the 9th, the solar activity was low. Active Region 1564 (AR 1564) produced two low-level C-class flares. AR 1568 was designated and produced low-level C-class flare. There were no Earth-directed CME activity. The forecast through September 12th: The solar activity is expected to be low with a chance for an isolated M-class flare.

At home, the geomagnetic field was quiet. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels during the period. The forecast through September 12th: The geomagnetic field activity is expected to be at quiet levels with a chance for unsettled levels. Also, there is a slight chance for active levels on the 12th due to the onset of a coronal hole high-speed stream. 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/today.html).

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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