Vaata laupäev, 20 veebruar 2016 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2016 Feb 20 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 20 Feb 2016 until 22 Feb 2016
Päikesepursked ehk loited

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

Geomagnetism

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

Päikese prootonid

Quiet

10cm fluxAp
20 Feb 2016095012
21 Feb 2016096007
22 Feb 2016097018

Bulletin

In the past 24 hours, two low C flares were released by returning region NOAA AR 2490 behind the southeastern limb. The brightest flare was a C2.7 flare which peaked at 23:10 UT on February 19. C flares (probability 70%) are expected within the next 24 hours, with a chance for an M flare (probability 20%), especially from returning region 2490. In the past 24 hours, the solar wind speed measured by ACE gradually decreased from about 560 km/s to 490 km/s. The magnitude of the Interplanetary Magnetic Field ranged between 1 and 6 nT. Over the past 24 hours, quiet to active geomagnetic levels were registered (K Dourbes between 1 and 4; NOAA Kp between 2 and 3). Quiet to active levels (K Dourbes < 5) are expected on February 20, and quiet to unsettled levels (K Dourbes < 4) on February 21 and 22.

Today's estimated international sunspot number (ISN): 052, based on 07 stations.

Solar indices for 19 Feb 2016

Wolf number Catania039
10cm solar flux094
AK Chambon La Forêt027
AK Wingst019
Estimated Ap019
Estimated international sunspot number048 - 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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