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Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2022 Mar 19 1231 UTC

SIDC Forecast

Сонячні спалахи

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Сонячні протони

Quiet

	10cm flux	Ap
19 Mar 2022	098	007
20 Mar 2022	096	014
21 Mar 2022	094	007

Bulletin

There are two active regions on the visible solar disc. There was one C-class flare in the past 24 hours, C1.2 with peak at 04:13 UT, from NOAA AR 2965. This AR has reduced its size and number of spots. For the next 24 hours, C-class flares remain possible.

No Earth directed CMEs were observed in the past 24 hours. The CME from 16 March could arrive to the Earth in the next 24 hours.

The greater than 10 MeV proton flux was at nominal levels and is expected to remain so in the next 24 hours. The greater than 2MeV electron flux was under the 1000 pfu threshold and is expected to remain so for the next 24 hours. The 24h electron fluence was at normal levels and is expected to remain so in next 24 hours.

The Earth is inside a slow solar wind flow, with solar wind speeds close to 300 km/s and an interplanetary magnetic field magnitude around 5 nT. Similar conditions are expected for the next 24 hours, unless the CME from 16 March arrives to the Earth before that.

The geomagnetic conditions over the past 24 hours were quiet (K_Bel and Kp up to 2) . Similar conditions can be expected for the next 24 hours, unless the possible arrival of the CME from 16 March creates disturbed conditions (up to moderate storm levels can be expected).

Today's estimated international sunspot number (ISN): 032, based on 16 stations.

Solar indices for 18 Mar 2022

Wolf number Catania	///
10cm solar flux	098
AK Chambon La Forêt	007
AK Wingst	003
Estimated Ap	003
Estimated international sunspot number	033 - Based on 24 stations

Noticeable events summary

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

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