Viewing archive of Wednesday, 9 May 2018
Geophysical report
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Solar and Geophysical Activity Summary 2018 May 09 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 129 Issued at 0245Z on 09 May 2018 This report is compiled from data received at SWO on 08 MayA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None
B. Proton Events
None.
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to
unsettled, with an isolated active period.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 070 SSN 025 Afr/Ap 012/015 X-ray Background A2.4 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.8e+06 GT 10 MeV 1.7e+04 p/(cm2-ster-day) (GOES-15 satellite synchronous orbit W136 degrees) Daily Electron Fluence GT 2 MeV 7.10e+08 e/(cm2-ster-day) (GOES-15 satellite synchronous orbit W136 degrees) 3 Hour K-indices Boulder 2 4 3 3 3 4 3 2 Planetary 3 3 3 3 1 4 3 2
F. Comments
The GOES-15 greater than 2 MeV electron fluence levels reached high levels.
All times in UTC
Latest news
Thursday, 16 January 2025
Coronal hole faces Earth
Saturday, 4 January 2025
Sunspot region 3947, X-class solar flares
Monday, 30 December 2024
Two earth-directed coronal mass ejections
Latest forum messages
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 | 2025/01/19 | M2.4 |
| Last geomagnetic storm | 2025/01/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2024 | 154.5 +2 |
| January 2025 | 140 -14.6 |
| Last 30 days | 160.7 +43.5 |