Viewing archive of Wednesday, 19 June 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 Jun 19 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 19 Jun 2019 until 21 Jun 2019
Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

10cm fluxAp
19 Jun 2019067008
20 Jun 2019067008
21 Jun 2019068006

Bulletin

Solar activity was at very low levels. The Sun remains spotless and no significant flares have been recorded. No Earth directed coronal mass ejections (CMEs) were observed over the last 24 hours in the available coronagraph imagery. The greater than 10 MeV proton flux was at nominal values. Solar activity is expected to remain at very low levels.

The solar wind fluctuated between 300 and 340 km/s (DSCOVR). Bz varied between -4 and +4 nT. The interplanetary magnetic field was predominantly directed away from the Sun (positive sector), but switched to be directed towards the Sun from approximately 8 UT on June 19. Quiet to unsettled geomagnetic conditions were observed, with the Kp index (NOAA) registering 1 and the local K index (Dourbes) ranging between 1-3 over the past 24 hours.

Quiet geomagnetic conditions are expected, with some unsettled periods due to the solar wind streams associated with a series of fragmented negative polarity coronal holes. The possibility of isolated active periods is also not excluded.

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

Solar indices for 18 Jun 2019

Wolf number Catania000
10cm solar flux067
AK Chambon La Forêt008
AK Wingst004
Estimated Ap003
Estimated international sunspot number000 - Based on 30 stations

Noticeable events summary

DayBeginMaxEndLocStrengthOP10cmCatania/NOAARadio burst types
None

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

All times in UTC

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