Wednesday, October 03, 2012

AR 1584's C1 Flare on October 2nd...

The above image was taken October 2nd at 09:04:00 UTC by the Atmospheric Imaging Assembly (AIA) aboard the Solar Dynamics Observatory (SDO). This was during the time of a C1 solar flare, produced by Active Region 1584 (AR 1584), in the southeast (lower-left) quadrant. The displayed image combined the AIA observations at 94, 131, and 171 Angstroms. Image Credit: SDO/AIA

For the end of October 1st and most of october 2nd, the solar activity was low. Active Region 1584 (AR 1584) produced the largest event, a C1 solar flare on the 2nd at 09:04 UTC. And a new group, AR 1585 (in the southeast quadrant) was numbered. No Earth directed coronal mass ejections (CMEs) were observed. The forecast through October 5th: The solar activity is expected to range from low to very low.

Here at home, the geomagnetic field was quiet. The forecast through October 5th: The geomagnetic field is expected to be mostly quiet. Stay tuned...

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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