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 UTC
Prepared 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 JAN
A. 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

<< Go to daily overview page

Latest news

Support 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!

SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/11/06X2.39
Last M-flare2024/11/24M1.0
Last geomagnetic storm2024/11/10Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
October 2024166.4 +25
November 2024144.7 -21.7
Last 30 days158.6 +10.8

This day in history*

Solar flares
12000X3.4
22000X2.87
32000X2.71
41998X1.54
51999M4.33
DstG
12001-221G4
21982-197G3
31986-86G2
41981-66
51991-65
*since 1994

Social networks