Viewing archive of Monday, 11 September 2017
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 2017 Sep 11 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 254 Issued at 0245Z on 11 Sep 2017 This report is compiled from data received at SWO on 10 SepA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0130 0130 0130 100 0148 0148 0148 120 0854 0854 0854 110 1535 1606 1631 2673 X8.2 670 1900 II/IV 2204 2353 0041 2673 S07W74 M1.1 Sf 450 II
B. Proton Events
The greater than 10 MeV Proton began at 10/1645Z
and crossed the 100 pfu threshold at 10/1705Z and crossed the 1000
pfu threshold at 10/1840Z. The greater than 100 MeV proton event
above 1 pfu began at 10/1625Z.
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet
to active levels.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 100 SSN 038 Afr/Ap 012/007 X-ray Background B4.9 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 5.7e+08 GT 10 MeV 1.9e+07 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W76 degrees) Daily Electron Fluence GT 2 MeV 4.90e+08 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W76 degrees) 3 Hour K-indices Boulder 1 1 1 1 1 4 2 3 Planetary 0 0 0 0 1 4 2 3
F. Comments
None.
Latest news
Saturday, 23 March 2024
X1.1 solar flare with earth-directed CME
Wednesday, 20 March 2024
Sunspot region 3615, G1 watch
Thursday, 22 February 2024
X6.3 solar flare
Latest forum messages
Main page of website is down, black/blank circling loading circle for data. 10Growth of Cycle 25 408Imagery from Total Solar Eclipse 08/04/2024 3AR 3637, 3638, 3643 46Interesting four hour class 12
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 | 2024/03/28 | X1.1 |
| Last M-flare | 2024/04/18 | M1.5 |
| Last geomagnetic storm | 2024/04/16 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2024 | 104.9 -19.8 |