Viewing archive of Friday, 12 November 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 Nov 12 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 316 Issued at 0245Z on 12 NOV 1999 This report is compiled from data received at SWO on 11 NOVA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0125 0131 0134 8753 N18W27 C5.6 SN 410 0253 0253 0254 270 0355 0355 0356 340 0358 0358 0358 350 0401 0401 0403 240 0455 0500 0506 8763 S17E69 C3.9 1F 620 0512 0515 0518 8759 N09E26 SF 320 0730 0747 0810 C7.0 160 1318 1328 1339 C5.8 210 1418 1418 1418 190 1758 1802 1820 8763 S15E63 SF 330 1923 1924 1927 380
B. Proton Events
None
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS AT QUIET
TO MINOR STORM LEVELS. THE MOST DISTURBED PERIOD WAS FROM 11/0300
-12OOZ. SOLAR WIND VELOCITY INCREASED TO AROUND 690 KM/S AND
DENSITY REMAINED LOW INDICATING THE EARTH CURRENTLY REMAINS WITHIN A
HIGH SPEED CORONAL HOLE STREAM. ENERGETIC ELECTRON FLUXES AT
GEOSYNCHRONOUS ORBIT REACHED HIGH LEVELS DURING THE PERIOD.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 240 SSN 340 AFR/AP 023/023 X-RAY BACKGROUND C1.8 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 3.7E+05 GT 10 MEV 1.3E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 1.10E+08 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 4 5 4 5 4 4 4 3 PLANETARY 3 4 5 4 4 3 3 3
F. Comments
None
Latest news
Monday, 22 April 2024
Lot's of sunspots! Big chance for major flare activity?
Saturday, 23 March 2024
X1.1 solar flare with earth-directed CME
Wednesday, 20 March 2024
Sunspot region 3615, G1 watch
Latest forum messages
AR 3637, 3638, 3643 86Unproven theories 341Space Weather Memes 338Filaments and prominences 55Growth of Cycle 25 433
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 | 2024/03/28 | X1.1 |
| Last M-flare | 2024/04/24 | M1.4 |
| Last geomagnetic storm | 2024/04/19 | Kp7 (G3) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2024 | 104.9 -19.8 |
| Last 30 days | 128.8 +21.5 |