Vaata reede, 3 veebruar 2017 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2017 Feb 03 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 03 Feb 2017 until 05 Feb 2017
Päikesepursked ehk loited

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

Geomagnetism

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

Päikese prootonid

Quiet

10cm fluxAp
03 Feb 2017076022
04 Feb 2017077015
05 Feb 2017078013

Bulletin

Over the past 24 hours solar activity has been very low. No significant flares have been recorded. All Active Regions (ARs) have shown low levels of activity, however AR 2632 (Mcintosh class:Dao; Mag. type:Beta) has shown some evidence of growth. No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar protons have remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with a low probability of C-class flares and a very low probability of M-class flares. A large negative polarity trans-equatorial coronal hole extending from the Southern pole is currently located in the Western hemisphere. The solar wind speed been slowly decreasing and fluctuated between 750 and 600 km/s over the past 24 hours. The total magnetic field strength has been around 5 nT. The Bz component fluctuated between -5 and +5 nT. Geomagnetic conditions ranged between Kp index 3-4 (NOAA) and local K index 1-4 (Dourbes) over the past 24 hours. The high speed stream (HSS) associated with the large negative polarity trans-equatorial coronal hole extending from the Southern pole is the cause of the increased solar wind speeds creating active Geomagnetic conditions. The enhanced solar wind speed is expected to create intermittent active geomagnetic conditions over the next couple of days, but should begin to abate.

Today's estimated international sunspot number (ISN): 037, based on 11 stations.

Solar indices for 02 Feb 2017

Wolf number Catania///
10cm solar flux075
AK Chambon La Forêt034
AK Wingst027
Estimated Ap028
Estimated international sunspot number042 - Based on 21 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmCatania/NOAARadio burst types
Puuduvad

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

Kõik ajad UTC-s

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