Viewing archive of Monday, 22 January 2024

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2024 Jan 22 1234 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

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

Solar protons

Proton event in progress (>10 MeV)

10cm fluxAp
22 Jan 2024176003
23 Jan 2024179019
24 Jan 2024182009

Solar Active Regions and flaring

Solar flaring activity was moderate during the last 24 hours with a M1.5-calss flare associated with NOAA Active Region (AR) 3559 (magnetic configuration Beta-Gamma, Catania sunspot group 43) registered with a peak time at 06:22 UTC on January 22. The same AR produce almost all C-class flaring activity of the past 24 hours. It is highly expected to continue producing numerous C-class flares and probably isolated M-class flare(s). NOAA AR 3561 (magnetic configuration Beta, Catania sunspot group 35) and NOAA AR 3562 (magnetic configuration Beta) have experience significant flux emerge during the past 24 hours and are expected to also produce C-class flares.

Coronal mass ejections

A partial halo Coronal Mass Ejection (CME) was observed in SOHO/LASCO C2 coronagraph images on January 21, at 00:24 UTC with the main direction towards North-East. SIDC/CACTUS tool provides an estimated projected angular width of 186 degrees, and a projected speed of 480 km/s. The source of this CME was located near the bipolar NOAA Active Region 3559 (North-East quadrant). The analysis indicated at most a glancing blow would be visible in the solar wind parameters near Earth around January 24-25. Two other partial halo CME observed in SOHO/LASCO C2 coronagraph images on January 21, at 09:12 and 15:16 UTC are estimated to be back-sided, hence, not geo-effective.

Solar wind

The Solar Wind (SW) conditions were stable during the last 24 hours. The SW speed varied between 330 km/s and 470 km/h, while the interplanetary total magnetic field (Bt) fluctuated between 3 nT and 7 nT. Its North-South component (Bz) ranged between -6 nT and 7 nT, while the interplanetary magnetic field phi angle was directed predominantly away from the Sun during the past 24 hours. A Coronal Mass Ejection (CME) is expected to arrive to the Earth's environment in the next 24 hours and cause a significant impact.

Geomagnetism

Geomagnetic conditions were both globally and locally quiet (NOAA Kp 1- to 2 and K BEL 1 to 2) during the past 24 hours. In the next 24 hours they are expected to become active as a result of the expected arrival of a Coronal Mass Ejection (CME).

Proton flux levels

The greater than 10 MeV proton flux was below the 10 pfu alert threshold level during the last 24 hours. However following the M1.5-calss flare associated with NOAA Active Region 3559 and registered with a peak time at 06:22 UTC on January 22, the proton flux increased as observed in GOES-16 and GOES-18 measurements. It is now reaching the alert threshold.

Electron fluxes at geostationary orbit

The greater than 2 MeV electron flux, as measured by the GOES-16 satellite, was below the 1000 pfu alert threshold during the last 24 hours and is expected to to remain below this threshold during the next 24 hours. The 24h electron fluence was at low levels during the past 24 hours and is expected to remain at these levels for the following 24 hours.

Today's estimated international sunspot number (ISN): 173, based on 09 stations.

Solar indices for 21 Jan 2024

Wolf number Catania///
10cm solar flux179
AK Chambon La Forêt008
AK Wingst004
Estimated Ap004
Estimated international sunspot number157 - Based on 09 stations

Noticeable events summary

DayBeginMaxEndLocStrengthOP10cmCatania/NOAARadio burst types
22060906220630N29E27M1.51N43/3559III/3

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

All times in UTC

<< Go to daily overview page

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

Donate SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/01M5.6
Last geomagnetic storm2025/03/27Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2025154.6 +17.6
Last 30 days128.5 -22.7

This day in history*

Solar flares
12001M7.89
22017M6.34
32001M5.75
42025M5.6
52024M3.9
DstG
11960-327G4
22001-228G2
31976-218G4
41973-211G4
51989-93G2
*since 1994

Social networks