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Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2020 Apr 01 1231 UTC

SIDC Forecast

Sluneční erupce

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

Geomagnetism

Quiet (A<20 and K<4)

Sluneční protony

Quiet

	10cm flux	Ap
01 Apr 2020	070	003
02 Apr 2020	071	006
03 Apr 2020	071	004

Bulletin

Solar flaring activity was at very low levels. No significant flares have been recorded. A small coronal hole began to transit the central meridian on Mar 31 20:00 UT. Solar activity is expected to remain at very low levels.

No Earth directed Coronal Mass Ejections (CMEs) were observed in the available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels over the past 24 hours and is expected to stay at nominal levels for the next 24 hours. The greater than 2 MeV electron flux was at moderate levels over the past 24 hours and is expected to increase further in the coming days.

The solar wind speed near Earth gradually decreased over the past 24 hours, with values ranging from 450 to 535 km/s (DSCOVR). The Interplanetary Magnetic Field (IMF) was predominantly oriented towards the Sun (phi angle in the negative sector). The magnitude of the magnetic field varied between 0 and +7 nT. Bz ranged between -5 and +4 nT.

Quiet to unsettled geomagnetic conditions were registered for the past 24 hours (K Dourbes recorded values 0-3 and NOAA Kp 2-3). Quiet to unsettled (K Dourbes = 3) geomagnetic conditions are expected for the next 24 hours, due to remaining effects of the coronal hole that crossed the central meridian on Mar 26.

Today's estimated international sunspot number (ISN): 014, based on 17 stations.

Solar indices for 31 Mar 2020

Wolf number Catania	///
10cm solar flux	070
AK Chambon La Forêt	019
AK Wingst	018
Estimated Ap	017
Estimated international sunspot number	/// - Based on /// stations

Noticeable events summary

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

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