Viewing archive of Friday, 26 July 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 Jul 26 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
26 Jul 2019	068	003
27 Jul 2019	068	007
28 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 (around 350 km/s). The total interplanetary magnetic field remained below 5 nT, the Bz component varied between -4 nT and +4 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 with the Kp index (NOAA) and the local K index (Dourbes) ranging between 0-2 over the past 24 hours.

Today's estimated international sunspot number (ISN): 000, based on 27 stations.

Solar indices for 25 Jul 2019

Wolf number Catania	000
10cm solar flux	068
AK Chambon La Forêt	007
AK Wingst	///
Estimated Ap	004
Estimated international sunspot number	000 - Based on 34 stations

Noticeable events summary

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

All times in UTC

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