Viewing archive of Wednesday, 11 July 2018

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2018 Jul 11 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 11 Jul 2018 until 13 Jul 2018
Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

10cm fluxAp
11 Jul 2018073009
12 Jul 2018074005
13 Jul 2018075005

Bulletin

Over the past 24 hours solar activity has been low. No flares have been recorded. A recurrent Active Region at the the East limb has some potential to produce flaring activity. The greater than 10MeV proton flux remained at background levels over the past 24 hours. No Earth directed CMEs were detected. Solar activity is expected to remain low over the next 24 hours. The solar wind speed has decreased from 375 till 335 km/s over the past 24 hrs. The total magnetic field strength has fluctuated mainly between 9 and 13 nT. Bz component has fluctuated between -5.2 and +6.8 nT. Geomagnetic conditions ranged between Kp index 0-3 (NOAA) and local K index 0-3 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected be mostly at quiet to unsettled levels.

Today's estimated international sunspot number (ISN): 000, based on 20 stations.

Solar indices for 10 Jul 2018

Wolf number Catania000
10cm solar flux///
AK Chambon La Forêt011
AK Wingst010
Estimated Ap008
Estimated international sunspot number000 - Based on 27 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

<< Go to daily overview page

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

Donate SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/01M2.5
Last geomagnetic storm2025/03/27Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2025154.6 +17.6
April 2025147 -7.6
Last 30 days129.8 -18.9

This day in history*

Solar flares
12001X1.77
22017M8.35
31999M6.2
42001M3.57
52017M1.81
DstG
11979-168G4
21960-151G3
31992-105G2
42004-104G2
51994-103G3
*since 1994

Social networks