Vaata teisipäev, 9 juuli 2024 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2024 Jul 09 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
09 Jul 2024168009
10 Jul 2024167015
11 Jul 2024166014

Solar Active Regions and flaring

Solar flaring activity over the past 24 hours was at moderate levels with background C-class flaring and an impulsive M1.1 flare, peak time 12:41 UTC on July 08, associated with an active region behind the south-east limb, which is currently rotating onto the visible disc and continues to produce C-class flares. Another unnumbered active region has rotated from the south-east limb and has contributed to the background flaring activity. There are five numbered active regions on the visible disk with NOAA AR 3738 (beta-gamma) remaining the largest and magnetically most complex region, responsible for majority of the flaring activity on the visible solar disk. The solar flaring activity is likely to be at low to moderate levels over the coming days with 60% chance for M-class flaring and 10% chances for isolated X-class flaring.

Krooniaine massiline väljavool

No Earth-directed coronal mass ejections (CMEs) have been detected in the available coronagraph imagery over the past 24 hours.

Päikesetuul

Over the past 24 hours the solar wind parameters (ACE and DSCOVR) were indicative of background slow solar wind conditions. The solar wind velocity weakly varied between 355 km/s to 438 km/s. The interplanetary magnetic field registered a maximum value of 8.6 nT and a minimum Bz of -5 nT. The B field phi angle was switching between the negative and positive sectors. The solar wind conditions are expected to be at background solar wind conditions throughout July 09. Weak enhancements are possible on July 10 and July 11 with expected mild high speed stream arrivals.

Geomagnetism

The geomagnetic conditions over the past 24 hours were globally quiet to unsettled and locally over Belgium reached active levels between 15:00 and 16:00 UTC on July 08. Mostly quiet to unsettled geomagnetic conditions are expected throughout July 09. Quiet to active conditions are expected for late on July 10 and July 11 with anticipated high speed stream arrivals.

Proton flux levels

Over the past 24 hours the greater than 10 MeV GOES proton flux was at background levels and is expected to remain so over the next days.

Electron fluxes at geostationary orbit

The greater than 2 MeV electron flux as measured by GOES 16 and GOES 18 was below the 1000 pfu threshold and is expected to remain so in the upcoming days. The 24h electron fluence was at nominal level and is expected to remain so in the next days.

Today's estimated international sunspot number (ISN): 140, based on 22 stations.

Solar indices for 08 Jul 2024

Wolf number Catania140
10cm solar flux169
AK Chambon La Forêt019
AK Wingst012
Estimated Ap013
Estimated international sunspot number111 - Based on 28 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmCatania/NOAARadio burst types
08123412411246S23E78M1.1SF--/----

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

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