Viewing archive of Monday, 4 May 2015
Daily bulletin on solar and geomagnetic activity from the SIDC
Issued: 2015 May 04 1230 UTC
SIDC Forecast
Solar flares
Eruptive (C-class flares expected, probability >=50%)
Geomagnetism
Quiet (A<20 and K<4)
Solar protons
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 04 May 2015 | 111 | 007 |
| 05 May 2015 | 112 | 007 |
| 06 May 2015 | 114 | 014 |
Bulletin
Solar activity has been dominated by NOAA AR 2335 which produced several C-class flares in past 24h. The strongest one was a C8.0 with peak at 00:52 UT. More C-class flares can be expected, with low chances of M-class flaring. There was a halo CME first seen at 10:48 UT on LASCO-C2 (after a data gap), preliminary data show that this is a backsided event, not supposed to affect the Earth.
Geomagnetic conditions have been quiet and are expected to remain so.
Today's estimated international sunspot number (ISN): 075, based on 15 stations.Solar indices for 03 May 2015
| Wolf number Catania | /// |
| 10cm solar flux | 111 |
| AK Chambon La Forêt | 011 |
| AK Wingst | 010 |
| Estimated Ap | 010 |
| Estimated international sunspot number | 037 - Based on 15 stations |
Noticeable events summary
| Day | Begin | Max | End | Loc | Strength | OP | 10cm | Catania/NOAA | Radio burst types | |
|---|---|---|---|---|---|---|---|---|---|---|
| None | ||||||||||
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
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