Viewing archive of Saturday, 17 January 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 Jan 17 1425 UTC

SIDC Forecast

Valid from 1230 UTC, 17 Jan 2015 until 19 Jan 2015
Solar flares

Eruptive (C-class flares expected, probability >=50%)

Geomagnetism

Active conditions expected (A>=20 or K=4)

Solar protons

Quiet

10cm fluxAp
17 Jan 2015125007
18 Jan 2015120013
19 Jan 2015115007

Bulletin

Solar activity is very low, no C-class flares in past 24h. No significant flares are expected in the next 48h. Geomagnetic conditions are quiet and expected to remain so. The arrival of a fast speed stream form a small equatorial coronal hole is expected within 24h, only active conditions should be reached.

Today's estimated international sunspot number (ISN): 032, based on 14 stations.

Solar indices for 16 Jan 2015

Wolf number Catania085
10cm solar flux125
AK Chambon La Forêt014
AK Wingst006
Estimated Ap006
Estimated international sunspot number043 - 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-flare2025/04/08M1.5
Last geomagnetic storm2025/04/06Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2025134.2 -20.4
April 2025141.4 +7.2
Last 30 days137.9 +0.4

This day in history*

Solar flares
12013M9.34
22024M5.47
32001M3.41
42000M1.63
52000M1.5
DstG
12001-271G4
21990-190G3
31978-114G4
41982-110G2
51959-88G1
*since 1994

Social networks