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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2023 Nov 16 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
16 Nov 2023	119	007
17 Nov 2023	119	007
18 Nov 2023	119	007

Solar Active Regions and flaring

There are three active regions visible on the disk (three rotated out of view in the last 24 hours). Only C-class flaring has been observed in the last 24 hours. The strongest flare was a C7.6 from NOAA AR 3485 close to the west limb (beta magnetic field configuration), peaking at 12:12 UTC on 15 November. More C-class flares can be expected in the next 24 hours.

Espulsioni di massa coronale

Two partial halo CMEs were observed erupting on 15 November (at 01:25 UTC and at 06:12 UTC), both eruptions were directed towards the north and most likely originated from the backside of the Sun as no related activity is seen on the frontside, so they are not expected to affect the Earth.

Vento solare

The Earth is immersed in slow solar wind, over the last 24 hours solar wind speed has remained constant around 400 km/s and interplanetary magnetic field around 5 nT. Same conditions are expected for the next 24 hours.

Geomagnetism

During the last 24 hours the geomagnetic conditions were quiet to unsettled globally (NOAA KP 3) and reached active levels locally (K_Bel 4). Mostly quiet to unsettled conditions are expected for the next 24 hours.

Proton flux levels

Over the past 24 hours the greater than 10 MeV GOES proton flux was at nominal levels and is expected to remain so over the next 24 hours.

Electron fluxes at geostationary orbit

The greater than 2 MeV electron flux was below the 1000 pfu threshold, as measured by GOES 16. It is expected to remain so in the next 24 hours. The 24 hour electron fluence was at normal levels, it is expected to stay at those levels for the next 24 hours.

Today's estimated international sunspot number (ISN): 036, based on 10 stations.

Solar indices for 15 Nov 2023

Wolf number Catania	041
10cm solar flux	119
AK Chambon La Forêt	022
AK Wingst	016
Estimated Ap	016
Estimated international sunspot number	036 - Based on 21 stations

Noticeable events summary

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

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