Vydáno: 2018 May 12 1230 UTC
Quiet conditions (<50% probability of C-class flares)
Active conditions expected (A>=20 or K=4)
Quiet
10cm flux | Ap | |
---|---|---|
12 May 2018 | 070 | 011 |
13 May 2018 | 070 | 006 |
14 May 2018 | 070 | 005 |
Solar activity was at very low levels. Small and inactive region NOAA 2709 (Catania 81) doubled its number of sunspots to 2. No earth- directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels.
Solar activity is expected to remain at very low levels.
Earth remained under the influence of the wind stream from an elongated negative polarity equatorial coronal hole (CH). Solar wind speed first decreased from about 480 km/s to 420 km/s by 23UT, then started a gradual increase to values near 520 km/s by the end of the period (DSCOVR). Bz varied between -6 and +4 nT, and was predominately negative until about 04UT. The interplanetary magnetic field was mainly directed towards the Sun. Geomagnetic activity ranged from quiet to mostly unsettled levels in Dourbes, with Kp recording 3 active intervals.
Quiet to unsettled geomagnetic conditions are expected, with a chance on an isolated active interval.
Today's estimated international sunspot number (ISN): 013, based on 18 stations.
Wolf number Catania | 011 |
10cm solar flux | 070 |
AK Chambon La Forêt | 026 |
AK Wingst | 016 |
Estimated Ap | 017 |
Estimated international sunspot number | 011 - Based on 28 stations |
Day | Begin | Max | Konec | Loc | Strength | OP | 10cm | Catania/NOAA | Radio burst types | |
---|---|---|---|---|---|---|---|---|---|---|
Žádný |
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
Všechny časy v UTC
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