Vaata laupäev, 27 august 2016 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2016 Aug 27 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 27 Aug 2016 until 29 Aug 2016
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
27 Aug 2016080006
28 Aug 2016080015
29 Aug 2016078037

Bulletin

Solar activity was very low with X-ray flux below C level and no flares observed. NOAA region 2581 grew slightly, while the other regions were in decay. X-ray flux is expected to remain below C level. Solar proton flux is at background levels and expected to remain so. No Earth directed CMEs have been observed in coronagraph data. A transequatorial positive polarity coronal hole is currently transiting the central meridian and is expected to become geoeffective on August 29.

Solar wind conditions were near nominal with solar wind speed currently around 425 km/s. Total magnetic field was steady around 5nT with a variable Bz component. The magnetic field phi angle indicates a negative sector throughout the period. Solar wind conditions are first expected to remain nominal with later tomorrow an expected boundary crossing ahead of the onset of a positive polarity coronal hole high speed stream.

Geomagnetic conditions were quiet to unsettled (both local K Dourbes and NOAA Kp 1-3) and expected to remain so the next 24 hours. Afterwards conditions are expected to rise to unsettled to active and later unsettled to minor storm levels with the expected sector change and high speed stream influence.

Today's estimated international sunspot number (ISN): 058, based on 18 stations.

Solar indices for 26 Aug 2016

Wolf number Catania///
10cm solar flux082
AK Chambon La Forêt011
AK Wingst009
Estimated Ap008
Estimated international sunspot number049 - Based on 30 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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