Visualizzazione archivio di mercoledì, 13 maggio AM

Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2020 May 13 1231 UTC

SIDC Forecast

Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

	10cm flux	Ap
13 May 2020	068	006
14 May 2020	068	006
15 May 2020	068	006

Bulletin

The Sun was spotless. Solar activity was at very low levels and is expected to remain so.

The greater than 10 MeV proton flux and the greater than 2 MeV electron flux were at nominal levels during the last 24 hours and are expected to remain so.

No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery.

Solar wind speed varied between 300 and 325 km/s (DSCOVR). Bz undulated between -4 and +3 nT, with stretches (up to several hours) of mildly negative values. The direction of the interplanetary magnetic field (phi angle) was mostly in a sunward orientation (negative sector), being in a positive sector during some brief intervals.

Geomagnetic activity was at quiet to unsettled levels. Geomagnetic conditions are expected to be mostly quiet with occasional unsettled episodes due to weak coronal hole wind streams.

Today's estimated international sunspot number (ISN): 000, based on 20 stations.

Solar indices for 12 May 2020

Wolf number Catania	///
10cm solar flux	069
AK Chambon La Forêt	010
AK Wingst	006
Estimated Ap	004
Estimated international sunspot number	000 - Based on 31 stations

Noticeable events summary

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

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