Viewing archive of Thursday, 5 April 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 Apr 05 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 095 Issued at 0245Z on 05 Apr 2001 This report is compiled from data received at SWO on 04 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0327 0330 0333 C3.2 160 0345 0349 0353 C6.4 500 0700 0700 0701 150 0925 0927 0938 9415 S20E67 Sf 130 180 0941 1027 1111 9415 S21E68 M1.6 Sf 360 1152 1159 1203 9401 N28W67 M1.1 Sf 1212 1222 1230 M2.0 2317 2351 0004 M1.1
B. Proton Events
The greater than 10 MeV proton event continues in
progress. The shock passage produced a very slight enhancement of
the particle flux levels.
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to
minor storm. A shock in the solar wind was observed on ACE data at
04/1422Z. After the shock, the solar wind displayed high speeds.
The shock and subsequent enhanced solar wind flow are most likely to
have been produced by the combined drivers from CME's out of Region
9393 on 2 April.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 205 SSN 217 Afr/Ap 012/015 X-ray Background C2.6 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.5e+08 GT 10 MeV 1.3e+07 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.20e+07 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 2 1 1 4 5 5 2 Planetary 2 2 2 2 3 4 5 2
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 488AR 13901 90Incoming & 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 |