Välja antud: 2022 Feb 27 1231 UTC
C-class flares expected, (probability >=50%)
Active conditions expected (A>=20 or K=4)
Quiet
10cm flux | Ap | |
---|---|---|
27 Feb 2022 | 099 | 013 |
28 Feb 2022 | 099 | 012 |
01 Mar 2022 | 099 | 007 |
A region rotating into view from behind the southeast limb produced a C1.5 flare peaking at 06:26 UT on February 27. The chance for a C flare in the next 24 hours is estimated at 70%, mainly from three as yet unnumbered regions near the East limb, with a 10% chance for an M flare.
No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery.
The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours. The greater than 2 MeV electron flux exceeded the 1000 pfu threshold in the past 24 hours, and may exceed that threshold again in the next 24 hours. The greater than 2 MeV electron fluence was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.
The solar wind speed as registered by DSCOVR started increasing around 21:40 UT on February 26 from about 355 to a maximum of 470 km/s, with current values around 460 km/s. Around the same time, the magnitude of the Interplanetary Magnetic Field near Earth (IMF) increased from about 2 to a maximum of 14 nT, with current values around 10 nT. Its orientation was predominantly away from the Sun. Bz was mainly below -5 nT between 05:00 and 07:00 UT on February 27, with a maximal southward extension of Bz = -13 nT. These enhanced solar wind conditions reflect the predicted arrival of a high speed stream from a positive polarity equatorial coronal hole, and are expected to persist in the next few days.
Quiet to unsettled geomagnetic conditions (K-BEL between 1 and 3; NOAA Kp between 0 and 4) were registered in the past 24 hours. Active intervals (K-BEL = 4) are possible on February 27 and 28 and March 1, with a slight chance for minor storm intervals (K-BEL = 5).
Today's estimated international sunspot number (ISN): 029, based on 24 stations.
Wolf number Catania | /// |
10cm solar flux | 097 |
AK Chambon La Forêt | 005 |
AK Wingst | 001 |
Estimated Ap | 001 |
Estimated international sunspot number | 026 - Based on 31 stations |
Day | Begin | Max | Lõpp | Loc | Strength | OP | 10cm | Catania/NOAA | Radio burst types | |
---|---|---|---|---|---|---|---|---|---|---|
Puuduvad |
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
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