Tuesday, December 11, 2012

Solar report latest

Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 346 Issued at 2200Z on 11 Dec 2012 IA. Analysis of Solar Active Regions and Activity from 10/2100Z to 11/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 2 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be at very low levels with a chance for C-class flares on days one, two, and three (12 Dec, 13 Dec, 14 Dec). IIA. Geophysical Activity Summary 10/2100Z to 11/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 328 km/s at 10/2344Z. Total IMF reached 5.9 nT at 10/2146Z. The maximum southward component of Bz reached -4.9 nT at 10/2149Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on day one (12 Dec), quiet to unsettled levels on day two (13 Dec), and a return to quiet levels on day three (14 Dec).