Viewing archive of Friday, 29 May 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 May 29 1230 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Solar protons

Quiet

	10cm flux	Ap
29 May 2015	094	011
30 May 2015	097	011
31 May 2015	100	001

Bulletin

Solar activity was very low, without any significant flaring. Sunspot regions 74 (NOAA 2356) and new Catania regions 76 and 77 are to be monitored while they rotate on the disk. No Earth-bound CMEs were observed.

The solar wind speed has slight increased and achieves values near 400 km/s, while the magnitude of the interplanetary magnetic field is close to 10 nT. Geomagnetic conditions are quiet (K <4) and are expected to slightly increase within the next 24 hours to active conditions (K=4).

Today's estimated international sunspot number (ISN): 024, based on 19 stations.

Solar indices for 28 May 2015

Wolf number Catania	011
10cm solar flux	093
AK Chambon La Forêt	013
AK Wingst	011
Estimated Ap	010
Estimated international sunspot number	009 - Based on 27 stations

Noticeable events summary

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

All times in UTC

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