Viewing archive of Saturday, 28 November 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 Nov 28 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 28 Nov 2015 until 30 Nov 2015
Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

10cm fluxAp
28 Nov 2015095005
29 Nov 2015092007
30 Nov 2015089007

Bulletin

The Sun did not produce any C flares in the past 24 hours. Quiet conditions (no C flares) are expected within the next 24 hours. In the past 24 hours, the solar wind speed detected by ACE varied between 260 and 350 km/s, while the magnitude of the Interplanetary Magnetic Field rose from 6 to 13 nT. Over the past 24 hours, geomagnetic conditions have been quiet (K Dourbes between 1 and 2; NOAA Kp between 1 and 2). Quiet to unsettled (K Dourbes < 4) conditions are expected on November 28, 29 and 30.

Today's estimated international sunspot number (ISN): 050, based on 12 stations.

Solar indices for 27 Nov 2015

Wolf number Catania055
10cm solar flux099
AK Chambon La Forêt009
AK Wingst008
Estimated Ap007
Estimated international sunspot number056 - Based on 17 stations

Noticeable events summary

DayBeginMaxEndLocStrengthOP10cmCatania/NOAARadio burst types
None

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

All times in UTC

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Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Gillam, MB, Iqaluit, NU
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A southern hemisphere coronal hole was detected in an earth-facing position on Tuesday, 8 April 2025

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