Vaata esmaspäev, 9 september 2019 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2019 Sep 09 1230 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
09 Sep 2019	068	010
10 Sep 2019	068	004
11 Sep 2019	068	004

Bulletin

There are no active regions visible on the disk. Solar activity has been very low over the past 24 hours, no significant flares have been recorded. No Earth directed CMEs have been observed in past 24 hours. The greater than 10MeV proton flux remained at background levels over the past 24 hours.

Solar activity is expected to remain low.

The solar wind speed fluctuated around 430 km/s for much of the period, but began to increase from 7 UT on Sep 9, reaching a maximum of 554 km/s. The interplanetary magnetic field fluctuated between approximately 1 and 8 nT. The Bz component was mostly negative, fluctuating between -6 and +4 nT. Geomagnetic conditions have been unsettled to active over the past 24 hours. The conditions were predominantly unsettled, then due to the increased solar wind speed became active (Kp index = 4) over the last few hours (9-12 UT)

Quiet to unsettled conditions are expected, with an isolated active period possible (K=4) in the afternoon of Sep 9 if the observed increase in the solar wind speed persists.

Today's estimated international sunspot number (ISN): 000, based on 20 stations.

Solar indices for 08 Sep 2019

Wolf number Catania	///
10cm solar flux	068
AK Chambon La Forêt	023
AK Wingst	013
Estimated Ap	013
Estimated international sunspot number	000 - Based on 23 stations

Noticeable events summary

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

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