Vaata pühapäev, 26 juuni 2022 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2022 Jun 26 1232 UTC

SIDC Forecast

Valid from 1230 UTC, 26 Jun 2022 until 28 Jun 2022
Päikesepursked ehk loited

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

Geomagnetism

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

Päikese prootonid

Quiet

10cm fluxAp
26 Jun 2022108012
27 Jun 2022108012
28 Jun 2022108007

Bulletin

The solar flaring activity was at low levels over the past 24 hours with only very few small C-class flares from several sunspots groups visible on the disc seen from Earth. We expect a very low flaring activity with a small chance of isolated C-class flares.

No clear Earth-directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraph images over the past 24 hours. However, a halo CME was detected by Cactus tool (the software package for 'Computer Aided CME Tracking') on June 26, at 03:30 UTC. Its main direction was South-West. No clear signature on disc could be associated to this CME, this indicate that the CME may well be backward. However, a confirmation is needed when data comes in.

The greater than 10 MeV proton flux was at nominal levels over the past 24 hours and is expected to remain so for the next 24 hours. The greater than 2 MeV electron flux was below 1000 pfu alert threshold and it is expected to remain so during the next 24 hours. The electron fluence was at normal to moderate levels and is expected to remain normal to moderated levels in the next 24 hours.

The solar wind parameters in Earth environment was enhanced with the expected arrival of the fast solar wind coming from coronal holes (negative polarity): the wind speed increased from 400 km/s up to 655 km/s. The interplanetary magnetic field magnitude reached values around 13 nT. The Bz component of the interplanetary magnetic field fluctuated between 12.0 nT and 8.7 nT being predominately negative. The solar wind conditions is expected to remain enhanced as long as Earth remain under the influence of the high-speed streams from coronal holes.

The geomagnetic conditions were active (NOAA Kp 4) in response of the arrival of the high-speed streams and the prolonged negative values of the Bz component of the interplanetary magnetic field. The geomagnetic conditions are expected to be unsettle with possible periods of active conditions.

Today's estimated international sunspot number (ISN): 033, based on 17 stations.

Solar indices for 25 Jun 2022

Wolf number Catania///
10cm solar flux108
AK Chambon La Forêt029
AK Wingst016
Estimated Ap018
Estimated international sunspot number049 - Based on 27 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmCatania/NOAARadio burst types
Puuduvad

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

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