Solar Activity-full report. AM .24 hr Summary... Solar activity was at low levels. Multiple C-class flares were observed from Regions 1893 (S13W59, Eki/beta-gamma-delta), 1897 (S18W23, Fac/beta-gamma), and 1900 (S20W62, Dai/beta-gamma). Slight growth was observed in Regions 1893 and 1900. Slight decay was observed in Region 1897. The rest of the spotted regions were relatively stable or in decay. No Earth-directed coronal mass ejections were observed during the period. .Forecast... Solar activity is likely to be moderate (R1-R2, Minor-Moderate) with a slight chance for X-class (R3, Strong) flares during days 1-2 (18-19 Nov), decreasing to a chance for moderate activity on day 3 (20 Nov) as Regions 1893 and 1900 rotate around the west limb. Energetic Particle .24 hr Summary... The greater than 2 MeV electron flux at geosynchronous orbit was at normal levels. The greater than 10 MeV proton flux at geosynchronous orbit was at background levels. .Forecast... The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at normal to moderate levels on days 1 (18 Nov) with a chance for high levels on days 2-3 (19-20 Nov). The greater than 10 MeV proton flux at geosynchronous orbit is expected to be at background levels (Below S1-Minor) for the forecast period (18-20 Nov). Solar Wind .24 hr Summary... Solar wind speed was in decline as coronal hole high speed stream effects diminished. Solar wind speed reached 478 km/s early in the period and had decreased to end of period values near 390 km/s. Total field was fairly steady ranging from 1 nT to 3 nT with the Bz component variable between +/-3 nT. Phi angle was mostly negative (towards) with minor deviations into a positive (away) sector. .Forecast... Solar wind speed is expected to continue at nominal levels for the forecast period (18-20 Nov). Geospace .24 hr Summary... The geomagnetic field was quiet. .Forecast... The geomagnetic field is expected to be at mostly quiet levels for the forecast period (18-20 Nov).
Posted on: Mon, 18 Nov 2013 20:10:11 +0000
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