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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2022 Nov 23 1231 UTC

SIDC Forecast

Brillamenti solari

C-class flares expected, (probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

	10cm flux	Ap
23 Nov 2022	115	007
24 Nov 2022	114	006
25 Nov 2022	114	006

Bulletin

The solar flaring activity was rather low during last 24 hours, with only several low C-class flares reported. Majority of the flares originated from the NOAA AR 3151 (Catania group 5) which presently has beta configuration of its photospheric magnetic field. We can expect flaring activity to remain at the C-class level, in the coming hours. The presently available data show that the CME, associated with the GOES C7.0 flare which peaked at 07:27 UT on November 22, was narrow (with angular width of about 100 degrees), and is therefore not expected to arrive to Earth. No other Earth-directed CMEs were detected in the available coronagraph observations over the past 24 hours.

The greater than 10 MeV proton flux was at background levels, and the greater than 2 MeV electron flux was under the 1000 pfu threshold, and we expect them to remain on these levels in the coming hours. The 24h electron fluence is at normal level and we expect it will stay so in the coming 24 hours.

Earth is presently inside the slow solar wind with velocity of about 300 km/s. The interplanetary magnetic filed magnitude presently amounts 2 nT. The solar wind originating from the small positive polarity coronal hole, that has rotated across the central meridian on November 22, might be expected at Earth on November 25. Another small, positive polarity coronal hole is currently crossing the central meridian. The solar wind originating from this equatorial coronal hole is expected at Earth on late November 26. During last 24 hours the geomagnetic conditions were quiet and we expect such a geomagnetic conditions to persist in the coming hours.

Today's estimated international sunspot number (ISN): 062, based on 14 stations.

Solar indices for 22 Nov 2022

Wolf number Catania	///
10cm solar flux	116
AK Chambon La Forêt	004
AK Wingst	002
Estimated Ap	002
Estimated international sunspot number	059 - Based on 13 stations

Noticeable events summary

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

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