Viewing archive of Thursday, 3 October 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Oct 03 2029 UTC

SIDC Forecast

Valid from 1230 UTC, 03 Oct 2013 until 05 Oct 2013
Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Proton event in progress (>10 MeV)

10cm fluxAp
03 Oct 2013108008
04 Oct 2013108007
05 Oct 2013108007

Bulletin

A long duration C1.5-flare occurred yesterday evening (Oct 2, 23:29 UT) from behind the Solar North-West limb. The event triggered a CME, which is not Earth directed. We forecast a 50% chance for continued C-class flaring, this time from NOAA AR 1855 and AR 1856. The proton flux levels have dropped below event threshold. Quiet geomagnetic conditions are expected.

Today's estimated international sunspot number (ISN): 047, based on 16 stations.

Solar indices for 02 Oct 2013

Wolf number Catania059
10cm solar flux108
AK Chambon La Forêt045
AK Wingst048
Estimated Ap050
Estimated international sunspot number044 - Based on 17 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-flare2025/04/01M2.4
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 days128.8 -21.8

This day in history*

Solar flares
12001X28.5
22001X2.01
32001X1.59
42014M9.35
52017M8.22
DstG
11960-272G3
21973-173G3
32001-101G1
41976-101G1
51994-96G3
*since 1994

Social networks