Viewing archive of Monday, 26 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 26 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 269 Issued at 0245Z on 26 Sep 2011 This report is compiled from data received at SWO on 25 SepA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0015 0022 0028 210 0120 0120 0120 170 0122 0122 0122 190 0227 0233 0237 1302 N12E49 M4.4 Sf 0239 0259 0306 240 310 0431 0450 0505 1302 N11E47 M7.4 2n 320 150 IV 0523 0525 0534 1303 S27W69 Sf 1100 0719 0719 0719 150 0846 0849 0852 1302 N15E45 M3.1 1n 0925 0935 0953 1303 M1.5 100 250 1046 2224 IV 1526 1533 1538 1302 N16E43 M3.7 2b 1500 180 1604 1604 1604 100 1604 1604 1604 180 1651 1658 1709 1303 S28W75 M2.2 Sf 1951 1952 2008 1302 N16E32 Sf 110 2345 2358 0009 1303 S29W68 M1.0 Sf 190 IV
B. Proton Events
The greater than 10 MeV proton event that began
at 23/2255Z remains in progress, peaking at 27.3 pfu at 25/2030Z.
C. Geomagnetic Activity Summary
The geomagnetic field was mostly
quiet.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 169 SSN 108 Afr/Ap 004/004 X-ray Background C2.7 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.7e+07 GT 10 MeV 1.3e+06 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 6.80e+06 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 1 1 0 2 2 3 2 2 Planetary 1 0 0 2 1 2 1 2
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
What are these long and thin eruptions? 1AR 3637, 3638, 3643 89Unproven theories 341Space Weather Memes 338Filaments and prominences 55
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 | 2024/04/25 | M1.0 |
| Last geomagnetic storm | 2024/04/19 | Kp7 (G3) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2024 | 104.9 -19.8 |
| Last 30 days | 133.9 +26.6 |