Viewing archive of Tuesday, 12 May 2020

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2020 May 12 1231 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
12 May 2020	068	003
13 May 2020	068	004
14 May 2020	068	005

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 started the period near 325 km/s and gradually declined to its current 300 km/s (DSCOVR). Bz undulated between -2 and +2 nT. The direction of the interplanetary magnetic field (phi angle) was mostly in a sunward orientation (negative sector).

Geomagnetic activity was at quiet levels. Geomagnetic conditions are expected to be quiet with an unsettled period possible on 14-15 May due to weak CH wind streams.

Today's estimated international sunspot number (ISN): 000, based on 23 stations.

Solar indices for 11 May 2020

Wolf number Catania	///
10cm solar flux	066
AK Chambon La Forêt	008
AK Wingst	005
Estimated Ap	005
Estimated international sunspot number	000 - Based on 27 stations

Noticeable events summary

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

All times in UTC

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