Viewing archive of Wednesday, 12 September 2012
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 2012 Sep 12 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 256 Issued at 0245Z on 12 Sep 2012 This report is compiled from data received at SWO on 11 SepA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0712 0712 0712 110 0805 0805 0805 210 1912 1912 1912 170
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 105 SSN 073 Afr/Ap 003/002 X-ray Background B4.8 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.2e+05 GT 10 MeV 1.3e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W74 degrees) Daily Electron Fluence GT 2 MeV 5.90e+07 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W74 degrees) 3 Hour K-indices Boulder 1 1 0 1 2 2 1 0 Planetary 1 0 0 0 1 1 0 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
Strong far side CME 335Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 10Incoming & Unnumbered Active Regions 1353Unspecified geomagnetic activity 1750Filaments and prominences 595
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 |