Viewing archive of Monday, 21 April 2014
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 2014 Apr 21 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 111 Issued at 0245Z on 21 Apr 2014 This report is compiled from data received at SWO on 20 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0807 0813 0818 2033 C6.4 II 1321 1321 1321 510 2105 2105 2105 100 2105 2105 2105 100
B. Proton Events
The S1 (Minor) solar radiation storm which began
at 18/1525 UTC ended at 20/1155 UTC and reached a maximum value of
58 pfu at 19/0105 UTC.
C. Geomagnetic Activity Summary
The geomagnetic field reached G1
(Minor) geomagnetic storm levels at 20/1200-1500 UTC followed by
active conditons for the remainder of the period due to coronal mass
ejection (CME) effects.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 163 SSN 192 Afr/Ap 020/021 X-ray Background B8.5 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.8e+08 GT 10 MeV 1.2e+06 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 5.70e+06 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 2 1 3 4 4 3 4 Planetary 3 2 0 3 5 4 4 4
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 |