Viewing archive of Tuesday, 25 September 2001
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 2001 Sep 25 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 268 Issued at 0245Z on 25 Sep 2001 This report is compiled from data received at SWO on 24 SepA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0922 0947 0949 9632 S20E22 Sf 110 0932 1038 1109 9632 S16E23 X2.6 2b 1900 7500 IV 1421 1421 1421 110 1820 1836 1843 C7.6 330
B. Proton Events
start max end peak flux
1215 2400 ip 1720 pfu (grtr than 10 MeV)
1440 2325 ip 17.1 pfu (grtr than 100 MeV)
Both events remain in progress.
C. Geomagnetic Activity Summary
Quiet to unsettled
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 279 SSN 315 Afr/Ap 010/006 X-ray Background C1.8 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.8e+07 GT 10 MeV 3.1e+07 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 4.20e+04 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 2 2 1 2 2 2 1 Planetary 3 1 1 2 2 2 2 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
Unexplained proton activity 4jsoc 61Filaments and prominences 594Changelog/Featurelog 162Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 1
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 | 2024/12/21 | M1.9 |
| 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 | 100.9 -51.6 |
| Last 30 days | 116.1 -38.9 |