Просмотр архива за среда, 8 июля 2020

Daily bulletin on solar and geomagnetic activity from the SIDC

Существующий: 2020 Jul 08 1231 UTC

SIDC Forecast

Солнечные вспышки

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

Quiet (A<20 and K<4)

Солнечные протоны

Quiet

	10cm flux	Ap
08 Jul 2020	068	003
09 Jul 2020	068	008
10 Jul 2020	068	006

Bulletin

Solar activity was at very low levels and is expected to remain so. The visible solar disk returned to spotlessness. A patchy positive polarity coronal hole (CH) is transiting the central meridian.

The greater than 10 MeV proton flux and the greater than 2 MeV electron flux were at nominal levels during the last 24 hours and are expected to remain so.

No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery.

Solar wind speed continued its gradual decline from about 430 km/s to its current values near 370 km/s (DSCOVR). Bz varied between -2 and +3 nT. The direction of the interplanetary magnetic field (phi angle) was predominantly directed away from the Sun (positive sector).

Geomagnetic activity was at quiet levels, with an unsettled interval (12-15UT) recorded at Dourbes. Geomagnetic conditions are expected to be mostly quiet, with a chance on an unsettled interval in particular on 9 July if a glancing blow from the 5 July CME would affect the earth environment.

Today's estimated international sunspot number (ISN): 000, based on 15 stations.

Solar indices for 07 Jul 2020

Wolf number Catania	025
10cm solar flux	068
AK Chambon La Forêt	006
AK Wingst	004
Estimated Ap	003
Estimated international sunspot number	010 - Based on 32 stations

Noticeable events summary

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

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