Viewing archive of Wednesday, 27 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 27 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 027 Issued at 0245Z on 27 JAN 1999 This report is compiled from data received at SWO on 26 JAN
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0001 0012 0045  8444 N21W37 C3.1  SF 99            II
0127 0129 0131                       100
B. Proton Events
THE GT 10 MEV PROTON ENHANCEMENT CONTINUED TO DECLINE AND WAS VERY NEAR BACKGROUND LEVEL AT THE END OF THE PERIOD.
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS QUIET. SOLAR WIND VELOCITIES CONTINUED TO DECREASE.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 133  SSN 047  AFR/AP 003/004   X-RAY BACKGROUND C1.1
DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS)
GT 1 MEV 2.2E+06   GT 10 MEV 3.8E+04 P/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
DAILY ELECTRON FLUENCE
GT 2 MEV 2.90E+07 E/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
3 HOUR K-INDICES:
BOULDER 2 1 2 1 1 1 1 2 PLANETARY 2 0 1 2 1 1 1 2
F. Comments
  None


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-flare2024/12/08X2.2
Last M-flare2024/12/23M8.9
Last geomagnetic storm2024/12/17Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 2024152.5 -13.9
December 2024106.6 -45.9
Last 30 days114.4 -44.3

This day in history*

Solar flares
12024M8.9
22015M6.75
31998M3.34
42013M2.36
52013M1.97
DstG
12002-67
22000-62G2
31989-60
42014-57
51982-53G1
*since 1994

Social networks