Vaata pühapäev, 9 juuli 2023 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2023 Jul 09 1231 UTC

SIDC Forecast

Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
09 Jul 2023162008
10 Jul 2023160010
11 Jul 2023158008

Solar Active Regions and flaring

Solar flaring activity was low but frequent during the last 24 hours. The largest flare was an C5.7 flare, peaking at 00:09 on July 09, associated with NOAA AR 3366 (beta class). NOAA AR 3361 (beta-delta class) is currently the largest and most complex active region on the visible solar disc but produced only low level C-class flares in the last 24 hours. Low flaring activity was also produced by NOAA AR 3355 (alpha class), NOAA AR 3359 (beta class), NOAA AR 3363 (beta class), and by NOAA AR 3364 (alpha class). Other regions on the disc did not show any significant flaring activity. The solar flaring activity is expected to be at low levels over the next 24 hours with C-class flares likely and M-class flares possible.

Krooniaine massiline väljavool

No Earth-directed Coronal Mass Ejections (CME) were observed in the SOHO/LASCO coronograph images over the past 24 hours.

Päikesetuul

Over the past 24 hours the solar wind parameters (ACE and DSCOVR) were slightly elevated. The solar wind speed ranged between 480 km/s and 520 km/s. The total interplanetary magnetic field varied between 3 and 7 nT. The southward component of the interplanetary magnetic field fluctuated between -3 nT and 6 nT. Solar wind parameters are expected to be slightly elevated over the next 24 hours due to the positive polarity CH HSS influence.

Geomagnetism

During last 24 hours the geomagnetic conditions were quiet globally (NOAA KP 0-1). Locally quiet to unsettled conditions were observed over Belgium (K-Bel=1-3). Geomagnetic conditions are expected at quiet to unsettled levels during next days, due to HSS influence.

Proton flux levels

The greater than 10 MeV proton was at the nominal levels in the past 24 hours. The proton flux is expected to remain below 10 pfu threshold over the next day, with a small chance that a particle event occurs in association with an X-class flare or a coronal mass ejection.

Electron fluxes at geostationary orbit

The greater than 2 MeV electron flux was below the 1000 pfu threshold. It is expected to remain below the threshold for the next 24 hours. The 24-hour electron fluence was at normal to moderate levels for the past 24 hours and it is expected to remain at these levels for the next 24 hours.

Today's estimated international sunspot number (ISN): 181, based on 18 stations.

Solar indices for 08 Jul 2023

Wolf number Catania///
10cm solar flux161
AK Chambon La Forêt006
AK Wingst008
Estimated Ap007
Estimated international sunspot number168 - Based on 25 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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