Viewing archive of Friday, 12 March 1999
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 1999 Mar 12 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 071 Issued at 0245Z on 12 MAR 1999 This report is compiled from data received at SWO on 11 MARA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1154 1157 1159 8487 N15E71 C2.0 SF 1700 2030 2034 2036 8487 N16E64 C6.1 SF 120
B. Proton Events
None.
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS
PREDOMINANTLY UNSETTLED. BRIEF ACTIVE CONDITIONS WERE OBSERVED AT
HIGH LATITUDES FROM 11/1200-1500Z.
D. Stratwarm
None.
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 137 SSN 095 AFR/AP 012/013 X-RAY BACKGROUND B3.3 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 2.1E+05 GT 10 MEV 1.5E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 4.40E+06 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 3 3 3 2 3 3 2 2 PLANETARY 3 3 3 3 4 3 3 1
F. Comments
None.
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
Filaments and prominences 529Strong far side CME 225AR 13901 110AR 13903 1Incoming & Unnumbered Active Regions 1246
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 | 156.1 +4.7 |