Viewing archive of Saturday, 29 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 29 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 272 Issued at 0245Z on 29 Sep 2001 This report is compiled from data received at SWO on 28 SepA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0335 0335 0335 220 0810 0830 0910 9636 N10E18 M3.3 2n 2300 180 II/IV 0934 1014 1050 9628 S18W36 M2.4 1n 6000 240 1918 1926 2005 9637 S18E22 M1.0 1f 2017 2020 2021 110 2115 2125 2134 9634 N13E11 M1.2 1f 74 50
B. Proton Events
The greater than 10 MeV proton event that began
at 24/1215 UTC reached maximum of 12900 pfu at 25/2235 UTC and
continues in progress. The day end flux level at 29/0000 UTC was 84
pfu.
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to
unsettled.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 266 SSN 234 Afr/Ap 013/013 X-ray Background C1.9 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.2e+08 GT 10 MeV 1.2e+07 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 3.50e+07 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 2 3 3 3 3 2 3 Planetary 2 2 3 3 3 3 3 3
F. Comments
None
All times in UTC
Latest news
Monday, 11 November 2024
Coronal hole faces Earth
Friday, 1 November 2024
X2.0 solar flare
Wednesday, 9 October 2024
X1.8 solar flare, severe geomagnetic storm watch
Latest forum messages
Filaments and prominences 498AR 13901 107Incoming & Unnumbered Active Regions 1245Sunspot Latitudes at or near Solar Maximum 76The Rotations of AR 13780 and AR 13902 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 | 2024/11/06 | X2.39 |
| Last M-flare | 2024/11/20 | M1.1 |
| 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 | 142.7 -23.8 |
| Last 30 days | 155.2 +4.4 |