Viewing archive of Thursday, 19 September 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 Sep 19 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
19 Sep 2019	067	006
20 Sep 2019	067	007
21 Sep 2019	067	007

Bulletin

Solar X ray flux remained below B level throughout the period. The Solar disk is spotless and X-ray flux is expected to remain at or below background levels.

There were no Earth-directed CMEs observed in coronagraph data.

Proton levels were at background values and are expected to remain so.

Solar wind conditions were nominal. Solar wind speed declined from around 420 km/s to around 380 km/s. Total magnetic field was below 4nT and the magnetic field phi angle was mostly in the positive sector. Near nominal Solar wind conditions are expected over the next 48 hours.

Geomagnetic conditions were quiet to unsettled (NOAA Kp 1-3 and local K Dourbes 0-3). Quiet geomagnetic conditions are expected over the next 48 hours.

Today's estimated international sunspot number (ISN): 000, based on 24 stations.

Solar indices for 18 Sep 2019

Wolf number Catania	000
10cm solar flux	066
AK Chambon La Forêt	012
AK Wingst	008
Estimated Ap	008
Estimated international sunspot number	000 - Based on 35 stations

Noticeable events summary

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

All times in UTC

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