Viewing archive of Monday, 7 September 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 Sep 07 1231 UTC

SIDC Forecast

Valid from 1230 UTC, 07 Sep 2015 until 09 Sep 2015
Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

10cm fluxAp
07 Sep 2015086010
08 Sep 2015087009
09 Sep 2015085008

Bulletin

Solar activity remains to be low, with no flares above the B-level reported since September 03. We expect this low solar activity to persist with possibility of only an isolated C-class flares in the coming hours. No Earth directed CMEs were observed in the last 24 hours.

The Earth is still inside the fast flow with the solar wind speed of about 500 km/s. The interplanetary magnetic field magnitude is rather stable having the value of about 7 nT. The geomagnetic conditions are currently quiet to unsettled and we expect it to remain so in the coming hours.

Today's estimated international sunspot number (ISN): 043, based on 18 stations.

Solar indices for 06 Sep 2015

Wolf number Catania///
10cm solar flux086
AK Chambon La Forêt026
AK Wingst017
Estimated Ap018
Estimated international sunspot number043 - Based on 27 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 moderate possibility for aurora to appear at the following high latitude regions in the near future

Rovaniemi, Sodankylä
Kiruna

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

Tórshavn
Oulu, Kuopio
Bergen, Trondheim
Arkhangelsk, Murmansk
Luleå, Sundsvall, Umeå

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

Tampere

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

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


02:00 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 01:45 UTC

alert


Tuesday, 8 April 2025
23:57 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 50GW at 00:44 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 days138.4 +2.2

This day in history*

Solar flares
12001X3.14
22002X1.17
32023M2.83
42002M2.34
52000M1.23
DstG
11990-281G4
21982-137G3
31957-124G3
41959-122G4
51960-81G3
*since 1994

Social networks