Vaata pühapäev, 3 jaanuar 2016 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2016 Jan 03 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 03 Jan 2016 until 05 Jan 2016
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 Jan 2016102017
04 Jan 2016102016
05 Jan 2016102007

Bulletin

Solar activity has been very low with the X-ray flux remaining below C level throughout the period. NOAA AR 2473 has departed over the Western limb. In addition to AR 2476 and 2477 a new region made its appearance on disk just southwest of AR 2477. These regions are fairly insignificant and only a limited chance for C flares is expected. The >10MeV proton flux values are further recovering from the proton event yesterday. With AR 2473 departing over the Western limb the warning condition for proton events is lifted. No Earth directed CMEs have been detected in coronagraph data. A positive polarity equatorial coronal hole is transiting the central meridian and expected to become geoeffective in 3 days from now. Solar wind speed has decreased over the period from around 490 km/s to around 450 km/s, with no sign of the anticipated high speed stream influence. Total magnetic field saw a peak of near 9.5 nT and is currently at 6-7nT. Bz was variable and mostly above -6nT. The magnetic field phi angle changed from the negative into the positive sector just before the start of the period. Solar wind conditions may see the arrival of a shock related to the January 1/2 CME this afternoon, afterwards recovering to nominal conditions. A positive polarity equatorial coronal hole is currently transiting the central meridian and expected to become geoeffective from January 6 onwards. Geomagnetic conditions have been quiet (both local K Dourbes and NOAA Kp 1-2). Geomagnetic conditions may see some enhancement to active conditions or even minor to moderate storm levels with the shock arrival expected this afternoon before recovering to quiet to unsettled conditions.

Today's estimated international sunspot number (ISN): 036, based on 06 stations.

Solar indices for 02 Jan 2016

Wolf number Catania///
10cm solar flux100
AK Chambon La Forêt011
AK Wingst010
Estimated Ap009
Estimated international sunspot number037 - Based on 13 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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