Viewing archive of Friday, 15 April 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 Apr 15 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 105 Issued at 0245Z on 15 Apr 2011 This report is compiled from data received at SWO on 14 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0041 0048 0057 1190 N11E01 C1.5 Sf 160 0352 0352 0352 120 0656 0700 0706 1190 N16W00 C1.6 Sf 1416 1416 1416 110 1707 1710 1713 1190 N16W05 C1.1 Sf 1856 1859 1901 1186 N22W42 B8.2 Sf 160 2240 2241 2242 200
B. Proton Events
None
C. Geomagnetic Activity Summary
Geomagnetic activity was at quiet
to unsettled levels.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 119 SSN 131 Afr/Ap 003/007 X-ray Background B5.8 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.0e+05 GT 10 MeV 1.3e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 6.90e+07 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 1 2 2 1 1 1 0 3 Planetary 1 2 2 1 1 3 2 3
F. Comments
None
All times in UTC
Latest news
Monday, 11 November 2024
Coronal hole faces Earth
Friday, 1 November 2024
X2.0 solar flare
Wednesday, 9 October 2024
X1.8 solar flare, severe geomagnetic storm watch
Latest forum messages
Unspecified geomagnetic activity 1643Space Weather Memes 571sun goes blank 75AR13883 2024/11/04 CME 45Incoming & Unnumbered Active Regions 1209
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 | 2024/11/13 | M1.7 |
| 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 | 166 -0.4 |
| Last 30 days | 163.2 +18.4 |