Просмотр архива за понедельник, 2 марта 2020

Daily bulletin on solar and geomagnetic activity from the SIDC

Существующий: 2020 Mar 02 1249 UTC

SIDC Forecast

Солнечные вспышки

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

Geomagnetism

Quiet (A<20 and K<4)

Солнечные протоны

Quiet

	10cm flux	Ap
02 Mar 2020	070	008
03 Mar 2020	070	011
04 Mar 2020	070	010

Bulletin

The solar activity was at low levels over the past 24 hours. The sun is spotless and the X-ray flux is below B-level. The solar activity is expected to remain at low levels for the next 24 hours.

No earth-directed coronal mass ejections (CMEs) have been observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal values.

The solar wind conditions remained slightly enhanced over the past 24-hour due to the equatorial coronal hole (negative polarity and facing Earth on February 27): the solar wind speed ranged between 379 km/s to 473 km/s, the total interplanetary magnetic field remained below 6 nT, the southward component fluctuated between -4 nT and 3 nT. The solar wind conditions are expected to remain slightly enhanced for the next 24-hour. Then, new enhancement of the solar wind conditions is expected due to the influence of, first, the relatively small positive polarity equatorial coronal hole that reached the central meridian on March 1, and then, the southern coronal hole extension (negative polarity).

The geomagnetic conditions were quiet with few short periods of unsettle condition observed in Dourbes station (K-Dourbes = 3). We expect the geomagnetic conditions to remain mostly quiet with some short sporadic periods of unsettled condition for the next days due to the influence of the coronal hole high-speed streams.

Today's estimated international sunspot number (ISN): 000, based on 10 stations.

Solar indices for 01 Mar 2020

Wolf number Catania	///
10cm solar flux	069
AK Chambon La Forêt	009
AK Wingst	008
Estimated Ap	007
Estimated international sunspot number	000 - Based on 29 stations

Noticeable events summary

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

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