Viewing archive of Saturday, 11 August 2001
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 2001 Aug 11 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 223 Issued at 0245Z on 11 Aug 2001 This report is compiled from data received at SWO on 10 AugA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0128 0136 0143 9562 N05W72 C8.0 Sf 1100 64 II 0836 0837 0837 160
B. Proton Events
A greater than 10 MeV proton event began at
10/1020 UTC with a peak flux observed at 10/1635 UTC of 17 pfu.
Protons remain enhanced.
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to
unsettled.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 160 SSN 119 Afr/Ap 010/011 X-ray Background C1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.9e+07 GT 10 MeV 4.9e+05 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.20e+07 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 3 2 1 3 2 2 2 Planetary 3 2 2 2 3 3 4 3
F. Comments
None
Latest news
Monday, 22 April 2024
Lot's of sunspots! Big chance for major flare activity?
Saturday, 23 March 2024
X1.1 solar flare with earth-directed CME
Wednesday, 20 March 2024
Sunspot region 3615, G1 watch
Latest forum messages
Does anyone know what happened to solarham.net? 2AR3663 64AR3664 2Unproven theories 3812024/05/03 X1.69 CME 9
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 | 2024/05/03 | X1.6 |
| Last M-flare | 2024/05/03 | M4.4 |
| Last geomagnetic storm | 2024/05/02 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2024 | 136.5 +31.6 |
| Last 30 days | 153 +57.6 |