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 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-flare2026/02/04X4.3
Last M-flare2026/02/05M1.1
Last geomagnetic storm2026/02/05Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
January 2026112.6 -11.4
February 2026139.3 +26.7
Last 30 days124.9 +18

This day in history*

Solar flares
12010M9.17
22025M7.6
32023M6.3
42024M5.1
52023M3.9
DstG
11981-131G2
21986-121G4
31967-120G2
41983-111G2
51994-92G2
*since 1994

Social networks