Viewing archive of Monday, 9 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 09 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 099 Issued at 0245Z on 09 Apr 2001 This report is compiled from data received at SWO on 08 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0838 0838 0839 150 2335 2336 2336 190 2339 2340 2340 560
B. Proton Events
Proton fluxes > 10 MeV remained near event
thresholds until the middle of the day and then have declined
rapidly to near background levels. The Thule Neutron Monitor has
shown a decreasing counting rate beginning about 08/1500 UT and
reaching down about five percent or more by 08/1800 UT.
C. Geomagnetic Activity Summary
Geomagnetic activity has ranged
from quiet to minor storm values.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 169 SSN 188 Afr/Ap 033/041 X-ray Background B6.2 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 7.7e+07 GT 10 MeV 2.8e+05 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 6.20e+06 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 2 4 5 5 4 5 5 Planetary 3 1 4 6 6 4 5 5
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 135850 mhz F2 51AR 13932 13Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 11Strong far side CME 335
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 | 2024/12/23 | 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 | 106.6 -45.9 |
| Last 30 days | 116.1 -41.8 |