Viewing archive of Saturday, 18 November 2023

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2023 Nov 18 1231 UTC

SIDC Forecast

Solar flares

M-class flares expected (probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
18 Nov 2023	120	007
19 Nov 2023	122	007
20 Nov 2023	126	007

Solar Active Regions and flaring

There are two active regions visible on the disk. The strongest flare was an M1.2 from an unnumbered region on the east limb, peaking at 05:42 UTC. More M-class flares are possible in the next 24 hours.

Coronal mass ejections

No Earth directed CMEs were observed in the last 24 hours.

Coronal holes

Two coronal holes crossed the central meridian in the past 24 hours, one with negative polarity at high northern latitudes and an equatorial one with positive polarity.

Solar wind

The Earth is immersed in slow solar wind, over the last 24 hours solar wind speed has decreased to 300 km/s and the interplanetary magnetic field is around 5 nT. Same conditions are expected for the next 24 hours.

Geomagnetism

During the last 24 hours the geomagnetic conditions were quiet globally and locally (NOAA KP 1, K_Bel 1). Mostly quiet 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 below threshold 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): 033, based on 07 stations.

Solar indices for 17 Nov 2023

Wolf number Catania	040
10cm solar flux	120
AK Chambon La Forêt	005
AK Wingst	004
Estimated Ap	003
Estimated international sunspot number	027 - Based on 23 stations

Noticeable events summary

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

All times in UTC

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