Viewing archive of Saturday, 1 September 2018

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2018 Sep 01 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 01 Sep 2018 until 03 Sep 2018
Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

10cm fluxAp
01 Sep 2018068006
02 Sep 2018067005
03 Sep 2018067008

Bulletin

Over the past 24 hours solar activity has been Low. No significant flares have been recorded. There are currently no significant ARs on the solar disk. No Earth directed Coronal Mass Ejections (CMEs) have been detected. The greater than 10MeV proton flux remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with a low probability of C-class flares. The solar wind speed has fluctuated between 360 and 410 km/s over the past 24 hours. The total magnetic field strength has fluctuated around 5 nT. The Bz component has been mainly positive fluctuating between -5 and +5 nT. Geomagnetic conditions ranged between Kp index 1-2 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected to be quiet.

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

Solar indices for 31 Aug 2018

Wolf number Catania///
10cm solar flux068
AK Chambon La Forêt010
AK Wingst006
Estimated Ap006
Estimated international sunspot number/// - Based on /// 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 Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!

No Ads on SWL Pro!
No Ads on SWL Pro! Subscriptions
Donations
Support SpaceWeatherLive.com! Donate
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2026/02/04X4.21
Last M-flare2026/02/25M2.4
Last geomagnetic storm2026/02/22Kp5+ (G1)
Spotless days
Last 365 days3 days
20263 days (5%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
January 2026112.6 -11.4
March 202683.5 -29.1
Last 30 days67.7 -52.1

This day in history*

Solar flares
12023X2.07
22015X1.18
32000M5.83
42000M5.53
52023M3.3
DstG
11957-147G1
22024-112G2
31982-109
41983-105G2
51989-82G2
*since 1994

Social networks