Het archief bekijken van dinsdag 11 april 2017

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2017 Apr 11 1337 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

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

Proton Flux monitor

Quiet

	10cm flux	Ap
11 Apr 2017	075	016
12 Apr 2017	074	012
13 Apr 2017	075	009

Bulletin

Solar activity was at very low levels during the period. Low-level B-class flaring was observed from a new active region at the east limb NOAA 2650 (B4.8, B1.6, B3.9, B1.3, B1.3). The filament eruption from the NE quadrant of the Sun is associated with a CME first observed in LASCO-C2 coronograph imagery at 23:28 UT 10 April. WSA/Enlil modeling determined a possible glancing blow from the CME, with arrival on 15 April. The greater than 10MeV proton flux was at nominal levels. Quiet flaring conditions are expected, with a chance on an isolated C-class flare. Solar wind parameters were at nominal levels. Solar wind speed was around 425 km/s. Bz fluctuated between -5.8 and +5.2 nT from 00UT today. A weak connection to an isolated, positive polarity coronal hole is expected to enhance the solar wind conditions slightly more today. The geomagnetic field was at quiet to active levels (Kp NOAA index: 1-4, K Dourbes index: 1-3). Geomagnetic conditions are expected to be quiet to active.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 014, gebaseerd op 25 stations.

Zon indexen voor 10 Apr 2017

Wolfgetal Catania	///
10cm zonneflux	074
AK Chambon La Forêt	008
AK Wingst	005
Geschatte Ap	005
Geschat internationaal zonnevlekkengetal	014 - Gebaseerd op 31 stations

Overzicht opvallende gebeurtenissen

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

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