Viewing archive of Saturday, 27 July 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 Jul 27 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
27 Jul 2019	068	005
28 Jul 2019	068	007
29 Jul 2019	068	007

Bulletin

The solar activity has been quiet over the past 24 hours. The sun is currently spotless and the X-ray flux remained below B-level. Solar activity is expected to remain at low levels for the next 24 hours.

No Earth directed coronal mass ejections (CME) were observed over the last 24 hours in the available coronagraph imagery. The greater than 10 MeV proton flux remained at background levels over the past 24 hours and is expected to remain at low levels.

The solar wind parameters are at nominal levels indicative of slow solar wind regime (300-3500 km/s). The total interplanetary magnetic field remained below 5 nT, the Bz component varied between -5 nT and +5 nT. The solar wind parameters might show some minor enhancements due to very mild effect of isolated small patchy polar coronal hole wind streams.

Quiet geomagnetic conditions were observed over the past 24 hours. Some short isolated unsettled conditions are possible due to the small coronal hole wind streams.

Today's estimated international sunspot number (ISN): 000, based on 16 stations.

Solar indices for 26 Jul 2019

Wolf number Catania	///
10cm solar flux	068
AK Chambon La Forêt	006
AK Wingst	002
Estimated Ap	002
Estimated international sunspot number	000 - Based on 33 stations

Noticeable events summary

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

All times in UTC

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