Viewing archive of Thursday, 27 October 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 Oct 27 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 300 Issued at 0245Z on 27 Oct 2011 This report is compiled from data received at SWO on 26 OctA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1647 1647 1647 110 1804 1804 1804 140 1807 1808 1809 170 1839 1839 1839 130 1922 1922 1922 100 1927 1927 1927 110 2255 2255 2255 140 2311 2311 2311 100
B. Proton Events
None
C. Geomagnetic Activity Summary
Quiet
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 132 SSN 091 Afr/Ap 005/003 X-ray Background B4.3 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.9e+06 GT 10 MeV 1.6e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 7.00e+05 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 1 1 0 2 2 1 ? Planetary 1 0 0 0 1 1 1 1
F. Comments
Boulder K-index for 21-24Z was 1.
All times in UTC
Latest news
Sunday, 8 December 2024
X2.2 solar flare, SDO outage
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Monday, 11 November 2024
Coronal hole faces Earth
Latest forum messages
Unspecified geomagnetic activity 1748Strong far side CME 325Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 8Filaments and prominences 595Incoming & Unnumbered Active Regions 1351
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 | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/22 | M1.0 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2024 | 152.5 -13.9 |
| December 2024 | 103.3 -49.2 |
| Last 30 days | 115.4 -40.8 |