Viewing archive of Saturday, 21 March 2015
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 2015 Mar 21 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 080 Issued at 0245Z on 21 Mar 2015 This report is compiled from data received at SWO on 20 MarA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0057 0133 0211 2297 C7.9 520 1501 1501 1501 110 2247 2247 2247 140
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field reached
minor storm levels due to southern polar coronal hole high speed
stream effects.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 113 SSN 027 Afr/Ap 018/019 X-ray Background B4.8 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.2e+06 GT 10 MeV 1.0e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 7.60e+08 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 4 2 5 4 2 3 3 4 Planetary 4 2 5 3 2 2 3 4
F. Comments
The > 2 MeV electron fluence reached high levels.
All times in UTC
Latest news
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Monday, 11 November 2024
Coronal hole faces Earth
Friday, 1 November 2024
X2.0 solar flare
Latest forum messages
Coronal mass ejection impact and G4 geomagnetic storm 10 & 11 October 2024 928Unspecified geomagnetic activity 1664Comment limitation 9AR 3906 8>500 meV 23
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 | 2024/11/23 | 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 | 144.7 -21.7 |
| Last 30 days | 158.6 +10.8 |