Viewing archive of Saturday, 16 December 2006
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 2006 Dec 16 0248 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 350 Issued at 0245Z on 16 Dec 2006 This report is compiled from data received at SWO on 15 DecA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0848 0909 0926 0930 S09W49 Sf 120 2107 2215 2226 0930 S05W31 X1.5 Sf 99 620 II 2220 0000 0030 IV 2222 0000 0000 IV
B. Proton Events
A 100 MeV proton event commenced 14/2255Z,
reached a 2.3 pfu maximum at 15/0015Z and ended 15/0325Z. The
greater than 10 MeV proton event that commenced 13/0310Z, reached a
698 pfu maximum at 13/0925Z and ended at 15/1620Z. The greater than
2 MeV electrons reached high levels today.
C. Geomagnetic Activity Summary
The geomagnetic field reached
severe storm levels.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 087 SSN 019 Afr/Ap 060/104 X-ray Background A9.2 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.2e+08 GT 10 MeV 2.2e+06 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W136 degrees) Daily Electron Fluence GT 2 MeV 5.40e+08 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 7 7 6 6 6 3 3 3 Planetary 8 8 7 6 7 4 4 3
F. Comments
The greater than 2 MeV electron fluence at geosynchronous orbit was at high levels today.
All times in UTC
Latest news
Sunday, 7 December 2025
M8.1 solar flare with earth-directed CME
Monday, 1 December 2025
X1.9 solar flare, Coronal hole faces Earth
Friday, 14 November 2025
X4.0 solar flare
Latest forum messages
AR4294 / 4296 / 4298 387AR4299 M8.1 CME 2025/12/06 87AR 4299 115New paper on the Gannon Storm 10-11 May 2024 2Electron event 10
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!
Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/08 | M2.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 162.7 +70.9 |
| Last 30 days | 108 +13.3 |