Bespreking van het voorspelde ruimteweer

Datum verslag: 2021 Jun 18 0030 UTC
Dit rapport werd door opgemaakt door het Space Weather Prediction Center - NOAA en verwerkt door Poollicht.be

Zonneactiviteit

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Solar activity was very low. Region 2833 (N24E18, Hsx/alpha) was unchanged and inactive during the period. No Earth-directed CMEs were observed in available coronagraph imagery.

Voorspelling

Solar activity is expected to be very low on 18-20 Jun.

Energetische deeltjes

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The greater than 2 MeV electron flux reached high levels with a peak flux of 4,862 pfu at 17/1425 UTC. The greater than 10 MeV proton flux was at background levels.

Voorspelling

The greater than 2 MeV electron flux is expected to be at moderate to high levels on 18-20 Jun in response to persistent high speed solar wind stream effects. The greater than 10 MeV proton flux is expected to persist at background levels in the absence of significant active regions.

Zonnewind

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Solar wind parameters were indicative of a persistent, yet waning CH HSS regime. Wind speeds slightly decreased from just over 570 km/s to near 500 km/s. Total field strength averaged near 4 nT, the Bz component was between +/- 3 nT, and the Phi angle remained in a mostly negative sector. Density and temperature remained steady throughout the period

Voorspelling

Solar wind parameters are expected to begin a return to a slower wind regime on 18-20 Jun as the coronal hole moves out of a geo-effective position.

Geospace

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The geomagnetic field was quiet to unsettled.

Voorspelling

The geomagnetic field is expected to be at quiet to unsettled levels on 18-20 Jun.