Vaata teisipäev, 28 jaanuar 2014 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2014 Jan 28 1243 UTC

SIDC Forecast

Valid from 1230 UTC, 28 Jan 2014 until 30 Jan 2014
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
28 Jan 2014153002
29 Jan 2014156004
30 Jan 2014159001

Bulletin

Solar activity has been at active levels over the last 24 hours. 6 C- and 4 M-class flares were recorded, the strongest reached M4-level and peaked at 22:10UT in NOAA 1967. This region has nearly rounded the southeast limb and was responsible for all 10 flares. These occurred near areas of mixed magnetic polarities to the northeast and south of the big main spot, which is still very close to the limb. NOAA 1968 near the northeast limb is a lot smaller and did not produce flares. The x-ray background flux has been all day above the C1-level. Active conditions are expected to continue, with a slight chance on an X-class flare. The CMEs associated with NOAA 1967's flaring activity were directed to the east and away from Earth. Solar wind speed has been declining to values currently just above 300 km/s, with Bz varying between -5 and +5 nT. Geomagnetic conditions have been quiet and are expected to remain so.

Today's estimated international sunspot number (ISN): 056, based on 10 stations.

Solar indices for 27 Jan 2014

Wolf number Catania///
10cm solar flux144
AK Chambon La Forêt005
AK Wingst004
Estimated Ap003
Estimated international sunspot number055 - Based on 16 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmCatania/NOAARadio burst types
27220522102215----M4.9--/1967
28040204090413----M1.5--/1967
28072507310734----M3.6--/1967III/2
28113411381141----M1.4--/1967III/2

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

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