Vaata kolmapäev, 10 august 2022 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2022 Aug 10 1231 UTC

SIDC Forecast

Valid from 1230 UTC, 10 Aug 2022 until 12 Aug 2022
Päikesepursked ehk loited

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

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

Päikese prootonid

Quiet

10cm fluxAp
10 Aug 2022109014
11 Aug 2022109021
12 Aug 2022109012

Bulletin

X-ray flux remained below C level throughout the period. The four unipolar regions on disc remained inactive, and the newly numbered bipolar region (Catania sunspot group 9, NOAA active region 3077) showed spreading of its footpoints. Another unipolar region (Catania sunspot group 10) has rotated on the disc in the south east but also remained inactive. Flaring at C level is not very likely but remains possible over the next days.

No Earth-directed coronal mass ejections (CMEs) were detected in the available coronagraph imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours and is expected to remain so in the next days. The greater than 2 MeV electron flux rose firmly above the 1000 pfu threshold and is expected to remain above the threshold again in the next days. The 24h electron fluence was at nominal to moderate levels and is expected to be at moderate levels over the next days.

Solar wind parameters reflected ongoing high speed stream conditions. Solar wind speed was 550-600km/s with an interplanetary magnetic field strength of 5-7nT. The magnetic field orientation indicates connection to a positive sector (directed away from the Sun). High speed stream conditions are expected to persist over the next days as the high speed stream from the equatorial coronal hole that crossed the central meridian August 5 is immediately followed by that from the equatorial coronal hole that crossed the central meridian August 8.

Geomagnetic conditions evolved from active (NOAA Kp and local K Dourbes 3) to quiet to unsettled (NOAA Kp 2-3 and local K Dourbes 1-2). Geomagnetic conditions are expected to be quiet to active over the next days given the continuing high speed stream Solar wind conditions.

Today's estimated international sunspot number (ISN): 067, based on 27 stations.

Solar indices for 09 Aug 2022

Wolf number Catania080
10cm solar flux109
AK Chambon La Forêt026
AK Wingst///
Estimated Ap025
Estimated international sunspot number064 - Based on 30 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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