Viewing archive of Sunday, 12 February 2017

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2017 Feb 12 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 12 Feb 2017 until 14 Feb 2017
Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

10cm fluxAp
12 Feb 2017076007
13 Feb 2017076007
14 Feb 2017076007

Bulletin

No C-class flares in past 24 h. One beta AR visible on the disk (2635). C-class flares are possible but not very likely.

No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar protons have remained at background levels over the past 24 hours.

Geomagnetic conditions have been at k = 1-2 levels. Solar wind speed is now at 350 km/s with interplanetary magnetic fields of 3 nT. Quiet geomagnetic conditions expected.

Today's estimated international sunspot number (ISN): 017, based on 05 stations.

Solar indices for 11 Feb 2017

Wolf number Catania///
10cm solar flux076
AK Chambon La Forêt005
AK Wingst005
Estimated Ap004
Estimated international sunspot number020 - Based on 09 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

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Gillam, MB, Iqaluit, NU
Nuuk
Reykjavik

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

Thursday, 10 April 2025
23:00 UTC - Geomagnetic activity

Active geomagnetic conditions (Kp4) Threshold Reached: 22:47 UTC

alert


20:45 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 50GW at 21:37 UTC


01:45 UTC - Geomagnetic activity

Active geomagnetic conditions (Kp4) Threshold Reached: 01:41 UTC

alert


Wednesday, 9 April 2025
08:12 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 76GW at 08:57 UTC


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 2025144.7 +10.5
Last 30 days138.8 +1.3

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