Viewing archive of Tuesday, 26 February 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Feb 26 1243 UTC

SIDC Forecast

Valid from 1230 UTC, 26 Feb 2013 until 28 Feb 2013
Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

10cm fluxAp
26 Feb 2013097006
27 Feb 2013099004
28 Feb 2013101012

Bulletin

A moderate chance for C-class flares is expected. Geomagnetic conditions are expected to remain quiet up till Feb 28 onwards when geomagnetic conditions will possibly be disturbed (Kp=3) due to the influence of a recurrent coronal hole.

Today's estimated international sunspot number (ISN): 034, based on 08 stations.

Solar indices for 25 Feb 2013

Wolf number Catania052
10cm solar flux095
AK Chambon La Forêt009
AK Wingst005
Estimated Ap004
Estimated international sunspot number031 - Based on 14 stations

Noticeable events summary

DayBeginMaxEndLocStrengthOP10cmRadio burst typesCatania/NOAA
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-flare2025/05/14X2.7
Last M-flare2025/05/15M2.1
Last geomagnetic storm2025/05/03Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
April 2025140.6 +6.4
May 202570.6 -70
Last 30 days96.7 -24

This day in history*

Solar flares
12012M7.32
22024M7.25
32013M4.61
42002M4.17
51999M3.33
DstG
11991-105G2
22024-99G2
32000-91G2
41981-81G1
52005-80
*since 1994

Social networks