Viewing archive of Thursday, 24 August 2023
Daily bulletin on solar and geomagnetic activity from the SIDC
Issued: 2023 Aug 24 1231 UTC
SIDC Forecast
Solar flares
Quiet conditions (<50% probability of C-class flares)
Geomagnetism
Quiet (A<20 and K<4)
Solar protons
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 24 Aug 2023 | 147 | 007 |
| 25 Aug 2023 | 145 | 007 |
| 26 Aug 2023 | 143 | 010 |
Solar Active Regions and flaring
There are eight active regions visible on the disk. They all have simple alpha or beta magnetic field configuration. Only C-class flares were observed in the last 24 hours. The strongest flare was a C1.5 with peak at 23:47 UTC on 23 August, from NOAA AR 3405. For the next 24 hours, C-class flares can be expected.
Coronal mass ejections
There were no Earth-directed Coronal Mass Ejections (CMEs) detected in the available coronagraph observations in the last 24 hours.
Solar wind
The Earth is inside a slow solar wind stream, with speed around 430 km/s and an interplanetary magnetic field around 5 nT. The interplanetary magnetic field orientation was predominantly in the negative sector (field directed towards the Sun). Similar conditions can be expected in the next 24 hours.
Geomagnetism
During the last 24 hours the geomagnetic conditions were quiet to unsettled (NOAA KP 1-2, K Bel 1-3). Similar conditions can be expected for the next 24 hours.
Proton flux levels
Over the past 24 hours the greater than 10 MeV GOES proton flux was at nominal levels and is expected to remain so over the next 24 hours.
Electron fluxes at geostationary orbit
The greater than 2 MeV electron flux remained below the 1000 pfu threshold as measured by GOES 16. It is expected to remain so in the next 24 hours. The 24 hour electron fluence was at normal levels and is expected to remain so.
Today's estimated international sunspot number (ISN): 087, based on 13 stations.
Solar indices for 23 Aug 2023
| Wolf number Catania | 106 |
| 10cm solar flux | 147 |
| AK Chambon La Forêt | 007 |
| AK Wingst | 004 |
| Estimated Ap | 003 |
| Estimated international sunspot number | 105 - Based on 28 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
All times in UTC
Current data suggests there is a moderate possibility for aurora to appear at the following high latitude regions in the near future
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