Het archief bekijken van vrijdag 9 februari 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 Feb 09 1617 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
09 Feb 2018	078	003
10 Feb 2018	079	004
11 Feb 2018	080	007

Bulletin

Solar activity was low. NOAA AR 2699 produced many B-class flares, the biggest flare B7.4 peaked yestreday at 16:59 UT. Now NOAA 2699 has beta-gamma magnetic field configuration and is expected to produce C-class flares and, with some small chance, M-class flares. Proton flux levels are at background values and are expected to remain so. No Earth-directed CMEs were observed. Solar wind speed decreased from 400 km/s till at 325 km/s with interplanetary magnetic field magnitude ranged from 4 to 5.5 nT. Geomagnetic conditions reached unsettled levels (K = 3) this morning due to the longer interval of the negative Bz value (-4.5 nT) and speeds reaching only 370 km/s. Quiet geomagnetic conditions can be expected in the next 48hrs.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 026, gebaseerd op 17 stations.

Zon indexen voor 08 Feb 2018

Wolfgetal Catania	023
10cm zonneflux	078
AK Chambon La Forêt	010
AK Wingst	004
Geschatte Ap	003
Geschat internationaal zonnevlekkengetal	025 - Gebaseerd op 23 stations

Overzicht opvallende gebeurtenissen

Aangeboden door het Solar Influences Data Analysis Center© - SIDC - Verwerkt door SpaceWeatherLive

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