Viewing archive of Monday, 26 October 1998

Solar activity 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.
Report of Solar-Geophysical Activity 1998 Oct 26 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 299 Issued at 2200Z on 26 OCT 1998

IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z

SOLAR ACTIVITY HAS BEEN LOW. THREE C-CLASS X-RAY EVENTS OCCURRED DURING THE PAST 24 HOURS, ONLY ONE OF WHICH WAS CORRELATED, A C2/SF FROM REGION 8369 AT 26/1820Z. AN ERUPTIVE PROMINENCE ON THE LIMB (EPL) AT N24 BEGAN AT26/1711Z, AND REACHED A MAXIMUM EXENT OF 0.27RV.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW, WITH CONTINUED C-CLASS X-RAY ACTIVITY FROM REGION 8369.
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
THE GEOMAGNETIC FIELD HAS BEEN QUIET TO UNSETTLED FOR THE PAST 24 HOURS. THE GREATER THAN 2 MEV ELECTRON FLUX CONTINUES IN THE HIGH RANGE.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS EXPECTED TO BE QUIET TO UNSETTLED FOR THE NEXT THREE DAYS.
III. Event Probabilities 27 OCT to 29 OCT
Class M10%10%10%
Class X01%01%01%
Proton01%01%01%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observed       26 OCT 104
  Predicted   27 OCT-29 OCT  102/100/100
  90 Day Mean        26 OCT 131
V. Geomagnetic A Indices
OBSERVED AFR/AP 25 OCT  010/016
ESTIMATED AFR/AP 26 OCT  008/008
PREDICTED AFR/AP 27 OCT-29 OCT  010/010-010/010-010/010
VI. Geomagnetic Activity Probabilities 27 OCT to 29 OCT
A. Middle Latitudes
Active15%15%15%
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Active15%15%15%
Minor storm05%05%05%
Major-severe storm01%01%01%

<< 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!

23%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/03/23X1.1
Last M-flare2024/03/28M7.0
Last geomagnetic storm2024/03/25Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2024124.7 +1.7

This day in history*

Solar flares
12024M7.0
22001M6.17
32000M4.46
42022M4.0
52014M3.79
ApG
1200144G2
2200327G2
3199721G2
4201727G1
5200421G1
*since 1994

Social networks