Viewing archive of Friday, 13 September 2002
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 2002 Sep 13 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 13 Sep 2002 This report is compiled from data received at SWO on 12 SepA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0917 0918 0918 100 1335 1338 1340 0105 S11E19 C1.0 Sf 4900 2054 2123 2136 0105 S12E16 C3.1 Sf 120 2203 2203 2203 140
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to
active. Coronal hole high speed stream effects continued to be the
main source of activity.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 212 SSN 258 Afr/Ap 009/017 X-ray Background B7.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.9e+05 GT 10 MeV 1.4e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.10e+07 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 3 4 2 4 2 3 2 Planetary 4 3 4 3 4 3 3 2
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
Incoming & Unnumbered Active Regions 1351Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 7Unspecified geomagnetic activity 1747Strong far side CME 322jsoc 64
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 |