Sunday, October 07, 2012

B-Class Events from AR 1585...

The above X-ray image of the sun was taken October 7th at 02:44:00 UTC by the Solar X-ray Imager (SXI) aboard the GOES-15 satellite. Image Credit: NOAA

For the end of October 5th and most of October 6th, the solar activity has been at very low levels. Active Region 1585 (AR 1585), in the southeastern quadrant, has been the most active region, producing multiple B-class events. No Earth directed coronal mass ejections (CMEs) were observed. The forecast through October 9th: The solar activity is expected to be at very low to low levels.

Here at home, the geomagnetic field has been at predominantly quiet levels. Solar wind speeds, as measured by the Advanced Composition Explorer (ACE) spacecraft, remain at nominal levels. Even so, energetic particle measurements by the EPAM sensor, indicate a CME is currently traveling toward Earth. The forecast through October 9th: The geomagnetic field is expected to be at predominantly quiet levels on the 7th. An increase to unsettled to active levels with a chance for minor storm periods is expected on the 8th and 9th as the 05 October CME is forecasted to arrive.

To monitor solar flare activity minute by minute, visit the "Today's Space Weather" page of NOAA's Space Weather Prediction Center (

To learn more about the sun and to stay current on solar activity, visit the mission home pages of the Solar Dynamics Observatory (SDO) (, the Solar and Heliospheric Observatory (SOHO) (, the Advanced Composition Explorer (ACE) (, and the Solar Terrestrial Relations Observatory (STEREO) (


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