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 UTCPrepared 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 1998IA. 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 M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
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 | |||
|---|---|---|---|
| Active | 20% | 15% | 15% |
| Minor storm | 05% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 20% | 20% |
| Minor storm | 05% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
Latest news
Sunday, 8 December 2024
X2.2 solar flare, SDO outage
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Monday, 11 November 2024
Coronal hole faces Earth
Latest forum messages
Strong far side CME 335Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 10Incoming & Unnumbered Active Regions 1353Unspecified geomagnetic activity 1750Filaments and prominences 595
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 | 2024/12/22 | M1.0 |
| 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 | 103.3 -49.2 |
| Last 30 days | 115.4 -40.8 |