Viewing archive of Friday, 17 November 2023

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2023 Nov 17 1231 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
17 Nov 2023	118	007
18 Nov 2023	116	007
19 Nov 2023	114	007

Solar Active Regions and flaring

There are two active regions visible on the disk. Only C-class flaring has been observed in the last 24 hours. The strongest flare was a C4.8 from an unnumbered region on the east limb, peaking at 20:22 UTC on 16 November. More C-class flares can be expected in the next 24 hours.

Coronal mass ejections

Two CMEs were observed erupting on 16 November around 04:00 UTC, both eruptions were directed towards the west and originated from the backside of the Sun, so they are not expected to affect the Earth.

Solar wind

The Earth is immersed in slow solar wind, over the last 24 hours solar wind speed has remained constant around 350 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 globally (NOAA KP 2) and unsettled locally (K_Bel 3). 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 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): 026, based on 16 stations.

Solar indices for 16 Nov 2023

Wolf number Catania	057
10cm solar flux	118
AK Chambon La Forêt	011
AK Wingst	010
Estimated Ap	008
Estimated international sunspot number	034 - Based on 13 stations

Noticeable events summary

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

All times in UTC

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