Pogoda kosmiczna - Dyskusja
Odnotowany: 2018 Jun 24 1230 UTC
Przygotowane przez Departament do Spraw Komercjalizacji USA, NOAA, Centrum Prognozowania Pogody Kosmicznej (SWPC) i przetworzony przez SpaceWeatherLive.com
Solar activity was very low. Regions 2713 (N04W86, Dso/beta) and 2715
(N07W28, Dsc/beta) produced multiple low-level B-class flare activity
this period and both regions exhibited minor decay. The largest flare of
the period was a B8/Sf at 24/0145 UTC from Region 2715. No
Earth-directed CMEs were observed in available satellite imagery.
There is a decreasing chance for isolated C-class flare activity over
the next three days (24-26 Jun) as Regions 2713 and 2715 are expected to
continue a trend of overall decay.
The greater than 2 MeV electron flux was at normal levels and the
greater than 10 MeV proton flux was steady at background levels.
The greater than 2 MeV electron flux is expected to reach moderate
levels each of the next three days (24-26 Jun) and the greater than 10
MeV proton flux is expected to persist at background levels throughout
the forecast period.
Solar wind parameters were enhanced over the period under the influence
of a positive polarity CH HSS. Total field declined from approximately
13 nT to near 3 nT. Solar wind speed reached a peak of 513 km/s at
23/2332 UTC before slowly decreasing to around 490 km/s by the end of
the period. The Bz component was variable between +12 nT and -9 nT early
in the period. Phi angle was oriented in a mostly positive (away) solar
Solar wind parameters are expected to slowly diminish over days one and
two (24-25 Jun) as CH HSS effects wane. A return to background levels is
expected by day three (26 Jun) with the return of a nominal solar wind
The geomagnetic field reached active levels this period due to the
influence of a positive polarity, northern pole-connected CH HSS.
The geomagnetic field is expected to be at quiet to unsettled levels for
the rest of day one and continuing through day two (24-25 Jun) under
weakening CH HSS influence. Generally quiet conditions are expected on
day three (26 Jun) with the return of a nominal solar wind regime.