Vaata teisipäev, 4 jaanuar 2022 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2022 Jan 04 1236 UTC

SIDC Forecast

Valid from 1230 UTC, 04 Jan 2022 until 06 Jan 2022
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
04 Jan 2022080005
05 Jan 2022077005
06 Jan 2022077007

Bulletin

Solar activity was at very low levels. NOAA Active Region (AR) 2916 (Catania group 97) has now rotated over the west limb. A new small region of flux emergence has shown some spot development (Catania group 1, S32E60). Solar activity is expected to be at very low levels with C-class flares possible, mainly from NOAA AR 2916 while it remains just beyond the west solar limb.

No Earth directed Coronal Mass Ejections (CMEs) have been observed in the available coronagraph data.

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 24 hours. The greater than 2MeV electron flux remained under the 1000 pfu threshold but is expected to increase and is likely to just cross this threshold in the next days. The 24h electron fluence was at normal levels and is expected to be at normal levels over the next 24 hours.

The Solar wind speed gradually decreased from 540 to 430 km/s. The total magnetic field magnitude ranged between 4 and 7 nT, with a variable Bz component. The interplanetary magnetic field phi angle was predominantly in the positive sector (directed away from the Sun). The solar wind speed is expected to continue to gradually decline and to reflect a slow solar wind regime over the next 48 hours.

Geomagnetic conditions were quiet to unsettled (NOAA Kp and local K Belgium 1-3) and are expected to be quiet to unsettled over the next days.

Today's estimated international sunspot number (ISN): 011, based on 08 stations.

Solar indices for 03 Jan 2022

Wolf number Catania025
10cm solar flux084
AK Chambon La Forêt018
AK Wingst015
Estimated Ap014
Estimated international sunspot number012 - Based on 15 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmCatania/NOAARadio burst types
Puuduvad

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

Kõik ajad UTC-s

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