Viewing archive of Saturday, 28 February 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 Feb 28 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 059 Issued at 2200Z on 28 FEB 1998

IA. Analysis of Solar Active Regions and Activity from 27-2100Z to 28-2100Z

SOLAR ACTIVITY WAS VERY LOW. REGION 8164 (N16W51) CONTINUES TO DECAY WITH ONLY FIVE SPOTS NOW VISIBLE IN WHITE LIGHT. REGION 8171 (S24W10) EXHIBITED SLIGHT GROWTH AND PRODUCED A B1/SF AT 28/0926Z. THE REMAINING REGIONS HAVE BEEN QUIET.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO REMAIN VERY LOW.
IIA. Geophysical Activity Summary 27-2100Z to 28-2100Z
GEOMAGNETIC ACTIVITY HAS BEEN QUIET TO UNSETTLED WITH ISOLATED PERIODS OF ACTIVE CONDITIONS AT HIGH LATITUDES.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS EXPECTED TO REMAIN QUIET TO UNSETTLED THROUGH 01 MAR WITH ISOLATED ACTIVE PERIODS AT HIGH LATITUDES. QUIET CONDITIONS ARE EXPECTED TO RETURN BY 2 MAR.
III. Event Probabilities 01 MAR to 03 MAR
Class M05%05%05%
Class X01%01%01%
Proton01%01%01%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observed       28 FEB 094
  Predicted   01 MAR-03 MAR  091/091/090
  90 Day Mean        28 FEB 095
V. Geomagnetic A Indices
OBSERVED AFR/AP 27 FEB  002/004
ESTIMATED AFR/AP 28 FEB  007/009
PREDICTED AFR/AP 01 MAR-03 MAR  008/008-005/005-005/005
VI. Geomagnetic Activity Probabilities 01 MAR to 03 MAR
A. Middle Latitudes
Active20%15%15%
Minor storm05%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active30%20%20%
Minor storm05%01%01%
Major-severe storm01%01%01%

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-flare2024/12/24M4.7
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
12001M5
22024M4.7
32023M2.9
42023M2.6
52001M2.52
DstG
11995-65G1
22014-57
32001-55G1
42002-49G1
51990-47
*since 1994

Social networks