Vaata laupäev, 7 september 2019 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2019 Sep 07 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
07 Sep 2019	069	013
08 Sep 2019	069	007
09 Sep 2019	069	007

Bulletin

No active regions visible on the disk. Solar activity has been very low, no flares in the past 24 h. The situation is not expected to change in the next 48 h.

No Earth directed CMEs in past 24 h. Solar protons have remained at background levels over the past 24 hours.

The solar wind speed is at 450 km/s with interplanetary magnetic field magnitude of 4 nT. Geomagnetic conditions have been quiet. The fast solar wind stream associated with a negative polarity coronal hole is expected to arrive to the Earth within 24 h. In the previous rotation, the high speed stream originating from this coronal hole did not have any geomagnetic impact, but the coronal hole has developed and increased in size since then. Unsettled to active geomagnetic conditions can be expected.

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

Solar indices for 06 Sep 2019

Wolf number Catania	000
10cm solar flux	069
AK Chambon La Forêt	010
AK Wingst	009
Estimated Ap	009
Estimated international sunspot number	000 - Based on 25 stations

Noticeable events summary

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

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