Viewing archive of Wednesday, 9 March 2022

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2022 Mar 09 1243 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
09 Mar 2022	114	006
10 Mar 2022	114	006
11 Mar 2022	112	010

Bulletin

Solar activity was at low levels with two C-class flares observed over the past 24 hours. There are six numbered active regions on the visible disc. Most of the flaring activity was produced by the newly rotated from the east-limb active region NOAA 2965/Catania sunspot group 55 (with magnetic complexity yet to be classified), which was responsible for a C1.1-class flare (peak time 22:27 UT on March 8th) and a C1.0-class flare (peak time 07:56 UT on March 9th). Some low levels of activity were produced by NOAA 2964/Catania sunspot group 52 (beta). The largest and most complex active region, NOAA 2960, with underlying magnetic configuration beta-gamma, has remained stable and inactive. The rest of the active regions on the visible solar disc are classified as type beta and did not show any significant flaring activity during the past 24 hours. The X-ray flare activity is expected to be at very low to low levels for the next 24 hours with 55% chance for C-class flaring.

No Earth-directed coronal mass ejections (CMEs) were observed in the available coronagraph imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours and is expected to remain so in the next 24 hours. The greater than 2MeV electron flux has exceeded the 1000 pfu threshold and is expected to remain elevated, but slowly decrease over the next 24 hours. The 24h electron fluence has reached moderate levels and is expected to remain at moderate levels in the next 24 hours.

Over the past 24 hours the solar wind parameters (ACE and DSCOVR) have experienced a decline towards slow solar wind conditions. The solar wind velocity varied in the range of approximately 370 km/s to 450 km/s. The interplanetary magnetic field was weak with a maximum value of 4.8 nT and a minimum Bz of -3.8 nT. The B field remained predominantly in the negative sector (directed towards the Sun). The solar wind speed is expected to fully return to background slow solar wind conditions over the next 24 hours.

The geomagnetic conditions over the past 24 hours were mostly quiet with isolated unsettled periods. Mostly quiet geomagnetic conditions are expected for the next 24 hours with possible isolated unsettled periods. Quiet to unsettled conditions with possible isolated active periods can be expected on March 11th due to the glancing blow influence of the weak and slow partial halo CME related to the filament eruption late on March 6th.

Today's estimated international sunspot number (ISN): 084, based on 20 stations.

Solar indices for 08 Mar 2022

Wolf number Catania	106
10cm solar flux	115
AK Chambon La Forêt	012
AK Wingst	008
Estimated Ap	006
Estimated international sunspot number	084 - 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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