Pogoda kosmiczna - Dyskusja
Odnotowany: 2020 Jan 18 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 and the visible disk remained spotless. No
Earth-directed CMEs were observed in available coronagraph imagery.
Solar activity is expected to be at very low levels on 18-20 Jan.
The greater than 2 MeV electron flux was below alert threshold values
and the greater than 10 MeV proton flux continued at background values.
The greater than 2 MeV electron flux is expected to continue at normal
to moderate levels on 18-20 Jan. The greater than 10 MeV proton flux is
expected to remain at background levels.
Solar wind parameters were at nominal levels with solar wind speed
between 310-340 km/s. Total field ranged from 1-6 nT while the Bz
component was between +5/-4 nT. Phi angle was mostly oriented in a
positive (away) solar sector.
Solar wind parameters are likely to become weakly enhanced on 19 Jan due
to the arrival of the 14 Jan CME, first observed in STEREO A COR2
imagery at 14/1124 UTC. This event was correlated to EUV darkening
observed near S02W12 in GOES SUVI 195 imagery beginning at 14/0952 UTC.
A further enhancement is expected on 20 Jan with the arrival of a
negative polarity CH HSS.
The geomagnetic field was quiet.
The geomagnetic field is expected to be mostly quiet for the remainder
of 18 Jan. Early to midday on 19 Jan, unsettled conditions are likely
due to the arrival of the 14 Jan CME. By 20 Jan, unsettled to active
conditions are expected with the arrival of a negative polarity CH HSS.