Випущено: 2014 Sep 28 1235 UTC
Active (M-class flares expected, probability >=50%)
Quiet (A<20 and K<4)
Warning condition (activity levels expected to increase, but no numeric forecast given)
10cm flux | Ap | |
---|---|---|
28 Sep 2014 | 188 | 010 |
29 Sep 2014 | 193 | 012 |
30 Sep 2014 | 196 | 007 |
Solar activity was moderate with an M5.1 flare from NOAA AR 2173 peaking at 2:58 UT. It was associated with type II radio bursts and a dimming. Coronagraph data however seen to indicate just a narrow south- eastward directed CME. AR 2172 and 2173 produced a further number of C flares. AR 2172, 2173, and 2175 remain active and are the most likely sources on disc. New flaring activity at M level is likely. With the main active regions on disc approaching moving to the west the chances for a proton event are increasing. After touching minima of below 380 km/s in the first half of the reporting period, solar wind speed picked up slightly again to around 420 km/s presently. Total magnetic field was mainly in the 5-7 nT range with Bz variable mainly in the +-4nT range with a period of negative Bz peaking below -5nT around 10:00 UT. Geomagnetic conditions were accordingly quiet with unsettled conditions late this morning. Quiet to unsettled conditions are expected to continue with some active periods still possible in the first 24 hours.
Today's estimated international sunspot number (ISN): 129, based on 11 stations.
Wolf number Catania | /// |
10cm solar flux | 181 |
AK Chambon La Forêt | 013 |
AK Wingst | 016 |
Estimated Ap | 017 |
Estimated international sunspot number | 129 - Based on 18 stations |
Day | Begin | Max | Кінець | Loc | Strength | OP | 10cm | Catania/NOAA | Radio burst types |
---|---|---|---|---|---|---|---|---|---|
28 | 0239 | 0258 | 0319 | S13W23 | M5.1 | 2B | 220 | --/2173 | II/1IV/1 |
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
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