Viewing archive of Wednesday, 18 September 2024
Geophysical report
Solar and Geophysical Activity Summary 2024 Sep 18 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 262 Issued at 0245Z on 18 Sep 2024 This report is compiled from data received at SWO on 17 SepA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 2240 2240 2240 140
B. Proton Events
The greater than 10 MeV proton flux levels
increased above the S1 (Minor) threshold at 17/0735 UTC, reached a
peak flux of 33 pfu at 17/1050 UTC and crossed below threshold at
17/1615 UTC.
C. Geomagnetic Activity Summary
The geomagnetic field was at
active to severe storm levels due to 14 Sep 2024 CME effects.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 165 SSN 140 Afr/Ap 039/064 X-ray Background C1.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 9.5e+07 GT 10 MeV 8.4e+05 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 1.00e+07 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 7 6 5 4 5 4 3 3 Planetary 7 7 5 6 6 4 3 4
F. Comments
None
All times in UTC
Latest news
Monday, 11 November 2024
Coronal hole faces Earth
Friday, 1 November 2024
X2.0 solar flare
Wednesday, 9 October 2024
X1.8 solar flare, severe geomagnetic storm watch
Latest forum messages
Filaments and prominences 498AR 13901 107Incoming & Unnumbered Active Regions 1245Sunspot Latitudes at or near Solar Maximum 76The Rotations of AR 13780 and AR 13902 1
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 | 155.2 +4.4 |