Vaata laupäev, 7 aprill 2018 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2018 Apr 07 1244 UTC

SIDC Forecast

Päikesepursked ehk loited

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Päikese prootonid

Quiet

	10cm flux	Ap
07 Apr 2018	067	002
08 Apr 2018	068	006
09 Apr 2018	067	013

Bulletin

Over the past 24 hours solar activity has been low with no active regions on the solar disk. No flares have been recorded. No Earth directed Coronal Mass Ejections (CMEs) have been detected. The greater than 10MeV proton flux remained at background levels over the past 24 hours. A low latitude negative polarity coronal hole has crossed the central meridian yesterday. Solar activity is expected to remain low over the next 24 hours. Only B-class flares can be expected. Solar wind paremetrs variations have been very low. The solar wind speed is below 370 km/s. The total magnetic field strength has fluctuated between 1.5 nT and 3.5 nT. The Bz component has fluctuated between -3.5 nT and +3.5 nT. Geomagnetic conditions ranged between Kp index 1-2 (NOAA) and local K index 0-2 (Dourbes) over the past 24 hours. Mostly quiet to geomagnetic levels are expected today and tomorrow morning. Unsettled and even active conditions can be expected from tomorow evening (April 8) due to the influences of a high speed stream coming from the low-latitude negative polarity coronal hole.

Today's estimated international sunspot number (ISN): 000, based on 17 stations.

Solar indices for 06 Apr 2018

Wolf number Catania	000
10cm solar flux	067
AK Chambon La Forêt	008
AK Wingst	004
Estimated Ap	003
Estimated international sunspot number	000 - Based on 33 stations

Noticeable events summary

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

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