Vaata esmaspäev, 24 juuni 2024 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2024 Jun 24 1232 UTC

SIDC Forecast

Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
24 Jun 2024191005
25 Jun 2024193007
26 Jun 2024195007

Solar Active Regions and flaring

Solar flaring activity was at moderate levels, with multiple C-class flares and four M-class flares recorded in the past 24 hours. The largest flare of the period was an impulsive M9.3 flare, peaking at 13:01 UTC on June 23, associated with NOAA AR 3723. The region corresponds to the return of old NOAA AR 3697, which produced several X-flares in the previous rotations. NOAA AR 3712, that rotated over the west limb, produced two M-class flares (M1.3 and M1.8, peaking at 04:17 UTC and 04:52 on June 24). Low flaring activity was also produced by NOAA AR 3716 (beta class) and NOAA AR 3720 (beta). The solar flaring activity is expected to be at moderate levels over the next 24 hours, with M-class flares possible and a small chance of isolated X-class flares.

Krooniaine massiline väljavool

A partial halo coronal mass ejection (CME) was observed in LASCO/C2 coronagraph data starting at 03:48 UTC on June 24th. The CME is directed primarily to the southwest from the Earth's perspective and is likely associated with a prominence eruption from behind the southwest limb. Based on the source location, no Earth-directed component of this CME is expected. No other Earth-directed CMEs have been detected in the available coronagraph imagery over the past 24 hours.

Päikesetuul

The solar wind parameters showed a return to the slow solar wind regime. The wind speed decreased form 360 km/s to 300 km/s. The southward component of the interplanetary magnetic field fluctuated between -5 nT and 7 nT, being mainly positive. The total interplanetary magnetic field decreased to values around 3 nT. The magnetic field orientation was predominantly in the negative sector (field directed towards the Sun). Slow solar wind conditions are expected to prevail over the next few days.

Geomagnetism

The geomagnetic conditions over the past 24 hours were at quiet to unsettled levels globally (NOAA Kp = 1-3-). Locally, a single active period between 12:00-15:00 UTC on June 23 was observed over Belgium (K-Bel = 1-4). Mostly quiet conditions are expected over 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, with possible enhancements in case of increased solar activity over the next few days.

Electron fluxes at geostationary orbit

The greater than 2 MeV electron flux remained below the 1000 pfu threshold as measured by GOES 16. It is expected to remain below this threshold over the next days. The 24-hour electron fluence was at nominal levels. The electron fluence is expected remain at nominal levels over the next days.

Today's estimated international sunspot number (ISN): 152, based on 18 stations.

Solar indices for 23 Jun 2024

Wolf number Catania///
10cm solar flux196
AK Chambon La Forêt019
AK Wingst013
Estimated Ap013
Estimated international sunspot number158 - Based on 20 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmCatania/NOAARadio burst types
23125113011311S17E74M9.31N--/3723
24040804170423----M1.3--/3712
24044504520456----M1.8--/3712
24114411481153----M1.5--/----

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

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