Vaata pühapäev, 28 veebruar 2016 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2016 Feb 28 1231 UTC

SIDC Forecast

Valid from 1230 UTC, 28 Feb 2016 until 01 Mar 2016
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
28 Feb 2016090006
29 Feb 2016090007
01 Mar 2016098017

Bulletin

Solar activity was low with only modest B-flaring from Catania group 27 (NOAA 2506). The X-ray flux reachied an overall maximum of B5.1 level at 2:21UT. Catania group 27 showed some further consolidation and spreading of the magnetic footpoints. Solar flaring is mainly expected to remain below C level although Catania group 27 remains a prime candidate for an occasional C flare. Coronagraph data have confirmed that yesterdays CME had only limited angular extent and will not be geo-effective. No other Earth-directed CMEs have been observed. Solar wind was at near background conditions. Solar wind speed was mostly in the 350-400 km/s range. Total magnetic field reached a peak near 8.5 nT but was mostly in the 4-7 nT range. Bz was predominantly positive during the period, and the magnetic field phi angle was in the positive sector. Nominal solar wind conditions are expected to continue with enhanced conditions likely to set in from March 1 onwards due to a moderately high speed stream from the equatorial coronal hole connected to the northern polar coronal hole. Geomagnetic conditions were quiet (NOAA Kp 0-2) and are expected to continue to be quiet, while from March 1 onwards unsettled to active conditions are possible under the influence the coronal hole high speed stream.

Today's estimated international sunspot number (ISN): 038, based on 15 stations.

Solar indices for 27 Feb 2016

Wolf number Catania///
10cm solar flux090
AK Chambon La Forêt005
AK Wingst002
Estimated Ap002
Estimated international sunspot number028 - Based on 26 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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