………. todays …… info ……… 2014 Mar 29 1230 UTC # - TopicsExpress



          

………. todays …… info ……… 2014 Mar 29 1230 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center # Solar Activity .24 hr Summary... Solar activity reached moderate levels due to an M2/Sn flare at 28/1918 UTC from Region 2017 (N10W26, Eao/beta-gamma-delta) with an associated Type-II radio sweep estimated at 528 km/s. Another M2/1n flare was subsequently observed at 27/2351 UTC from the same region. This event was also accompanied by a Type II sweep with a preliminary speed estimate of 857 km/s. Forecast models indicate that the bulk of the ejecta from the two CMEs is headed north of the ecliptic but a glancing blow is possible late on 01 Apr to early 02 Apr. A 12 degree filament eruption centered near N18E37 disappeared between 29/0150 - 0156 UTC accompanied by a C2/Sf flare. An associated CME was visible in LASCO C2 imagery at 29/0248 UTC but is directed well north of the ecliptic and is not expected to be geoeffective. .Forecast... Solar activity is expected to be low with a slight chance for R1-R2 (Minor-Moderate) flare activity over the next three days (29 - 31 Mar). The increased productivity of Region 2017 may require these estimates to be raised during the next forecast period. Energetic Particle .24 hr Summary... The greater than 2 MeV electron flux was at normal levels and the greater than 10 MeV proton flux was at background levels. .Forecast... The greater than 2 MeV electron flux is expected to remain at normal levels and the greater than 10 MeV proton flux is expected to remain at background levels (Below S1-Minor) for the next three days (29 - 31 Mar). Solar Wind .24 hr Summary... Solar wind parameters were indicative of a continued nominal solar wind environment. Solar wind speeds were steady in the 380 - 480 km/s range. Total field strength values peaked at 6 nT while the Bz component reached a maximum southward component of -5 nT. The phi angle was predominately negative (towards) throughout the period with only short deviations to the positive (away) sector. .Forecast... Solar wind parameters are expected to remain at background levels for the next three days (29 - 31 Mar). Geospace .24 hr Summary... The geomagnetic field was at quiet to unsettled levels. .Forecast... The geomagnetic field is expected to be mostly quiet (Below G1-Minor) for the next three days (29 - 31 Mar).
Posted on: Sat, 29 Mar 2014 14:11:57 +0000

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