Viewing archive of Friday, 30 September 2011
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 2011 Sep 30 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 273 Issued at 0245Z on 30 Sep 2011 This report is compiled from data received at SWO on 29 SepA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0131 0131 0131 230 0405 0405 0405 370 0452 0452 0453 370 0649 0649 0650 110 0700 0700 0700 100 1019 1023 1025 1305 N15E22 C1.3 Sf 100 1207 1247 1317 1302 N10W11 C2.7 Sf II 1505 1505 1505 140 1545 1545 1545 120 1746 1746 1746 210 1934 1934 1934 140 1936 1936 1937 260 1958 1958 1958 100 2229 2230 2230 600 2231 2231 2232 910
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field began the
period under minor storm conditions between 29/0000Z - 29/0600Z,
before decreasing to quiet conditions for the remainder of the
period.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 137 SSN 099 Afr/Ap 016/015 X-ray Background B4.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 5.7e+06 GT 10 MeV 9.4e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 3.80e+07 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 6 5 4 3 2 3 2 2 Planetary 4 4 3 3 4 1 1 1
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 534AR 13901 116Incoming & Unnumbered Active Regions 1249Strong far side CME 226AR 13903 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 | 156.1 +4.7 |