Viewing archive of Monday, 29 June 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 Jun 29 1230 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
29 Jun 2015	095	011
30 Jun 2015	094	006
01 Jul 2015	093	007

Bulletin

Solar activity has been low, NOAA AR 2373 has just rotated into view and has the potential to produce several flares, it has already produced 3 C-class flares in the past 24 hours, the largest being a C1.9 flare peaking at 17:14 UT on 2015-06-28. The previously active AR 2371 has rotated over the West limb, but produced the largest magnitude flare in the past 24 hours, a C2.2 flare peaking at 00:36 UT on 2015-06-29. Other recurrent active regions are rotating into view now and may increase solar activity in the coming hours. Proton levels are still declining and are now below 5 pfu. The solar wind speed has slightly decreased over the past 24 hours, and has varied between 350 km/s to 480 km/s. The total magnetic field has been around 6 nT with small variations ranging from 4 to 8 nT, and the Bz component has fluctuated from positive to negative, between +6 and -5 nT over the past 24 hours. Geomagnetic conditions ranged between Kp index 2-3 (NOAA) and local K index 1-4 over the past 24 hours. There were no significant CMEs over the past 24 hours.

Today's estimated international sunspot number (ISN): 034, based on 17 stations.

Solar indices for 28 Jun 2015

Wolf number Catania	///
10cm solar flux	///
AK Chambon La Forêt	017
AK Wingst	016
Estimated Ap	015
Estimated international sunspot number	023 - Based on 25 stations

Noticeable events summary

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

All times in UTC

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