Viewing archive of Monday, 18 January 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 Jan 18 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 018 Issued at 0245Z on 18 JAN 1999 This report is compiled from data received at SWO on 17 JANA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0056 0103 0105 8440 N20E28 C1.8 SF 120 0426 0426 0433 8439 S21E19 SF 310 33 1649 1706 1724 8440 N19E21 SF 290 1658 1701 1704 8439 S22E13 C4.1 SF 1800 1950 1955 1957 8439 S21E10 C5.9 SF 570 II 2035 2039 2041 C2.0 570 2100 2103 2105 C1.2 570 2136 2148 2151 C1.4 150 2224 2224 2226 310 2338 2341 2343 C1.3 280
B. Proton Events
None
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS QUIET.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 161 SSN 131 AFR/AP 005/005 X-RAY BACKGROUND B7.4 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 5.0E+05 GT 10 MEV 1.3E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 2.10E+08 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 2 2 2 1 1 1 1 1 PLANETARY 2 2 2 1 2 2 1 1
F. Comments
THE GREATER THAN 2 MEV ELECTRON FLUENCE WAS MODERATE.
All times in UTC
Latest news
Monday, 23 December 2024
M9.0 solar flare with earth-directed CME
Sunday, 8 December 2024
X2.2 solar flare, SDO outage
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Latest forum messages
AR13936 4AR 3936 4AR 3938 92024/12/23 AR13932 M8.9 & M4.1 associated CMEs 45Ask your obscure/"stupid" space weather questions. 136
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 | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/25 | M4.9 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2024 | 152.5 -13.9 |
| December 2024 | 115.2 -37.3 |
| Last 30 days | 118.5 -39.1 |