Viewing archive of Wednesday, 18 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 18 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 261 Issued at 0245Z on 18 Sep 2002 This report is compiled from data received at SWO on 17 SepA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0157 0205 0214 0110 N19W60 C5.2 Sf 130 II 0410 0415 0417 0119 S15E27 C1.2 Sf 110 53 0548 0554 0558 0114 S13W37 C2.0 Sn 320 83 0745 0747 0748 200 32 0917 0921 0924 0119 S16E25 C8.8 Sn 2100 68 2145 2145 2146 140 2327 2327 2328 500 2357 0001 0019 0119 S15E16 Sf 640
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to
unsettled with one active period between 17/12-15Z.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 194 SSN 228 Afr/Ap 014/013 X-ray Background B6.7 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.5e+05 GT 10 MeV 1.2e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 4.40e+07 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 3 3 3 4 3 2 3 Planetary 2 3 3 3 4 3 3 3
F. Comments
None
Latest news
Monday, 22 April 2024
Lot's of sunspots! Big chance for major flare activity?
Saturday, 23 March 2024
X1.1 solar flare with earth-directed CME
Wednesday, 20 March 2024
Sunspot region 3615, G1 watch
Latest forum messages
Unproven theories 349AR3654 30Growth of Cycle 25 435Unspecified geomagnetic activity 954Changelog/Featurelog 154
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 | 2024/03/28 | X1.1 |
| Last M-flare | 2024/04/29 | M3.6 |
| Last geomagnetic storm | 2024/04/26 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2024 | 104.9 -19.8 |
| Last 30 days | 139 +32.6 |