Viewing archive of Saturday, 25 May 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 May 25 1230 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
25 May 2019	065	005
26 May 2019	066	003
27 May 2019	066	008

Bulletin

Over the past 24 hours solar activity has been very low. The visible solar disc was spotless and no significant flares have been recorded. No Earth directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraph imagery. The greater than 10MeV proton flux remained at background levels over the past 24 hours. Solar activity is expected to remain very low over the next 24 hours.

The solar wind was at background levels over the last 24 hours, with a minimum and maximum speed recorded of around 295 km/s and 355 km/s, respectively. The total magnetic field strength fluctuated between 0.4 and 5.7 nT. The Bz component ranged between approximately -3 and +4 nT. The phi angle was predominantly negative, switching to the positive sector at around 4 UT.

Geomagnetic conditions have been quiet to unsettled over the past 24 hours, with Kp index (NOAA) and local K index (Dourbes) ranging between 0-2 and 0-3, respectively. Quiet geomagnetic conditions are expected over the next 24 hours, with the possibility of isolated unsettled intervals.

Today's estimated international sunspot number (ISN): 000, based on 21 stations.

Solar indices for 24 May 2019

Wolf number Catania	///
10cm solar flux	066
AK Chambon La Forêt	009
AK Wingst	007
Estimated Ap	006
Estimated international sunspot number	000 - Based on 33 stations

Noticeable events summary

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

All times in UTC

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