Viewing archive of Wednesday, 20 December 2023
Geophysical report
Solar and Geophysical Activity Summary 2023 Dec 20 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 354 Issued at 0245Z on 20 Dec 2023 This report is compiled from data received at SWO on 19 DecA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field reached
active levels
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 179 SSN 144 Afr/Ap 010/008 X-ray Background C1.5 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.8e+04 GT 10 MeV 1.7e+04 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.50e+06 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 4 2 1 2 2 2 2 Planetary 3 4 1 1 1 1 2 2
F. Comments
None
All times in UTC
Latest news
Friday, 7 February 2025
Coronal hole faces Earth, Minor G1 geomagnetic storm watch
Wednesday, 29 January 2025
Double coronal holes face Earth
Thursday, 16 January 2025
Coronal hole faces Earth
Latest forum messages
Ask your obscure/"stupid" space weather questions. 261Unexplained proton activity 50AR 4001 3AR 4006 1AR 3998 23
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!
Space weather facts
| Last X-flare | 2025/01/04 | X1.85 |
| Last M-flare | 2025/02/23 | M4.9 |
| Last geomagnetic storm | 2025/02/19 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2025 | 137 -17.5 |
| February 2025 | 154.3 +17.3 |
| Last 30 days | 150.6 -11.5 |