Viewing archive of Saturday, 23 November 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 Nov 23 1230 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
23 Nov 2019	070	009
24 Nov 2019	070	006
25 Nov 2019	070	011

Bulletin

The solar activity has been at very low levels over the past 24 hours. The Sun is currently spotless and the X-ray flux remains below the B class level. There is currently a small patchy coronal hole near the central meridian. Solar activity is expected to remain at low levels for the next 24 hours.

The greater than 10 MeV proton flux was at nominal values.

Over the past 24 hours, the solar wind speed decreased from 600 km/s to 500 km/s. The total magnetic field strength has fluctuated between 4 nT and 8 nT. The Bz component fluctuated around 0 nT, ranging between -5 and +5 nT. Geomagnetic conditions ranged between Kp index 2-3 (NOAA) and local K index 1-4 (Dourbes) over the past 24 hours. Geomagnetic conditions were enhanced due to a high speed stream (HSS) from a small low latitude positive polarity Coronal Hole (now at the West limb). Geomagnetic conditions should continue to decline, but may experience the occasional fluctuation.

Today's estimated international sunspot number (ISN): 000, based on 07 stations.

Solar indices for 22 Nov 2019

Wolf number Catania	///
10cm solar flux	070
AK Chambon La Forêt	///
AK Wingst	016
Estimated Ap	014
Estimated international sunspot number	000 - Based on 16 stations

Noticeable events summary

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

All times in UTC

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