Viewing archive of Monday, 20 December 2004
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.
:Product: 20041220SGAS.txt
:Issued: 2004 Dec 20 0250 UT
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.comJoint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 355 Issued at 0245Z on 20 Dec 2004 This report is compiled from data received at SWO on 19 DecA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet.
Solar wind speed was in gradual decline and finished the period near
400 km/s.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 094 SSN 029 Afr/Ap 003/004 X-ray Background B1.2 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 9.8e+05 GT 10 MeV 1.4e+04 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W105 degrees) Daily Electron Fluence GT 2 MeV 7.80e+07 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W76 degrees) 3 Hour K-indices Boulder 1 0 1 1 1 2 2 1 Planetary 1 0 1 1 1 2 1 1
F. Comments
None
All times in UTC
Latest news
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Monday, 11 November 2024
Coronal hole faces Earth
Friday, 1 November 2024
X2.0 solar flare
Latest forum messages
AR 13905 45Incoming & Unnumbered Active Regions 1259Coronal mass ejection impact and G4 geomagnetic storm 10 & 11 October 2024 929AR13906 1350 mhz F2 46
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 | 2024/11/24 | M1.0 |
| 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 | 144.7 -21.7 |
| Last 30 days | 158.6 +10.8 |