Viewing archive of Saturday, 16 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 16 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 106 Issued at 0245Z on 16 Apr 2011 This report is compiled from data received at SWO on 15 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0045 0045 0045 100 0437 0441 0444 1190 N15W16 C1.3 Sf 1442 1449 1457 1190 N13W23 C2.0 Sf 1608 1614 1619 1190 N13W25 C1.6 Sf 1702 1712 1728 1190 N14W19 M1.3 1f 64
B. Proton Events
None
C. Geomagnetic Activity Summary
Geomagnetic activity was quiet at
all latitudes.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 129 SSN 124 Afr/Ap 003/006 X-ray Background B6.2 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.8e+05 GT 10 MeV 1.3e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 8.10e+07 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 2 1 1 2 2 1 2 Planetary 2 2 0 1 2 2 2 1
F. Comments
None
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 1749Strong far side CME 327Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 9Filaments 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 |