Viewing archive of Wednesday, 8 February 2017

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2017 Feb 08 1230 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
08 Feb 2017	072	014
09 Feb 2017	074	007
10 Feb 2017	075	007

Bulletin

NOAA AR 2634 went from beta to alpha alpha magnetic field configuration and is the only visible active region on the solar disk. There have been no C-class flares in past 24 h. The situation is not expected to change.

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 = 2-3 levels. Solar wind speed is now at 480 km/s with interplanetary magnetic fields of 4 nT. The high speed stream (HSS) expected from an equatorial coronal hole may have missed the Earth. This was the case in the previous rotation. It may still arrive today though and cause up to K = 4.

Today's estimated international sunspot number (ISN): 010, based on 06 stations.

Solar indices for 07 Feb 2017

Wolf number Catania	014
10cm solar flux	072
AK Chambon La Forêt	011
AK Wingst	010
Estimated Ap	008
Estimated international sunspot number	012 - Based on 15 stations

Noticeable events summary

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

All times in UTC

<< Go to daily overview page