Viewing archive of Tuesday, 18 April 2023
Geophysical report
Solar and Geophysical Activity Summary 2023 Apr 18 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 108 Issued at 0245Z on 18 Apr 2023 This report is compiled from data received at SWO on 17 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0345 0345 0345 110 0505 0506 0506 110 1645 1645 1644 3282 N13E14 Sf 140
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet
levels
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 167 SSN 162 Afr/Ap 006/005 X-ray Background C1.2 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.8e+04 GT 10 MeV 2.3e+04 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.40e+06 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 1 1 2 2 2 2 1 1 Planetary 1 1 1 1 1 2 2 2
F. Comments
None
All times in UTC
Latest news
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Monday, 11 November 2024
Coronal hole faces Earth
Friday, 1 November 2024
X2.0 solar flare
Latest forum messages
Filaments and prominences 529Strong far side CME 225AR 13901 110AR 13903 1Incoming & Unnumbered Active Regions 1246
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 | 2024/11/06 | X2.39 |
| Last M-flare | 2024/11/20 | M1.1 |
| Last geomagnetic storm | 2024/11/10 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| October 2024 | 166.4 +25 |
| November 2024 | 142.7 -23.8 |
| Last 30 days | 156.1 +4.7 |