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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2020 May 15 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
15 May 2020	068	006
16 May 2020	070	005
17 May 2020	070	004

Bulletin

The Sun was spotless. Solar activity was at very low levels and is expected to remain so. A small active region may round the northeast limb on 16 May.

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 280 and 320 km/s, with Bz varying between -3 and +5 nT (DSCOVR). The direction of the interplanetary magnetic field (phi angle) was mostly oriented away from the Sun (positive sector), being in a negative sector during the 00-03UT interval and briefly around 21UT and 08UT.

Geomagnetic activity was at quiet levels, with unsettled conditions recorded by Dourbes during the 09-12UT interval. Geomagnetic conditions are expected to be mostly quiet with an occasional unsettled episode possible.

Today's estimated international sunspot number (ISN): 000, based on 22 stations.

Solar indices for 14 May 2020

Wolf number Catania	///
10cm solar flux	068
AK Chambon La Forêt	007
AK Wingst	004
Estimated Ap	002
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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