Viewing archive of Monday, 15 April 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 Apr 15 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 105 Issued at 0245Z on 15 Apr 2002 This report is compiled from data received at SWO on 14 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0050 0050 0050 370 0321 0351 0409 9893 N22W45 M1.4 1f 0728 0728 0728 670 0728 0739 0744 9893 N19W57 C9.6 Sf 940 II 1532 1532 1532 110 1538 1538 1540 110 1606 1606 1607 100 2154 2200 2202 110 2222 2229 2233 9893 N18W74 C7.2 Sf 80 II 2235 2237 2252 9893 N20W64 1f 120 2312 2312 2312 210
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field ranged from
quiet to active.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 210 SSN 236 Afr/Ap 011/013 X-ray Background C2.4 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.8e+05 GT 10 MeV 1.5e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 4.10e+05 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 2 2 1 4 3 2 2 Planetary 3 3 2 2 4 3 3 2
F. Comments
The 14 April Fredericksburg A-index reported in Part (E) is estimated from Boulder observations.
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
AR 13901 82Sunspot Latitudes at or near Solar Maximum 76Incoming & Unnumbered Active Regions 1244The Rotations of AR 13780 and AR 13902 1Space Weather Memes 580
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 |