Viewing archive of Thursday, 9 March 2000
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 2000 Mar 09 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 069 Issued at 2200Z on 09 MAR 2000IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z SOLAR ACTIVITY DECREASED TO LOW LEVELS. OCCASIONAL
C-CLASS X-RAY FLARES OCCURRED, TWO OF WHICH WERE PRODUCED BY REGION
8906 (S16E55). THIS REGION MAY POSSESS A MIXED-POLARITY STRUCTURE,
BUT LIMB PROXIMITY PREVENTED A DETAILED ANALYSIS. REGION 8900
(S15W51) SHOWED SIGNS OF DECAY. REGION 8898 (S13W20) SHOWED MINOR
GROWTH. NEW REGION 8908 (S19E71) WAS NUMBERED.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE. ISOLATED M-CLASS FLARES ARE POSSIBLE FROM REGIONS 8898,
8900, AND 8906.
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
THE GEOMAGNETIC FIELD WAS AT MOSTLY QUIET LEVELS.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE AT QUIET TO UNSETTLED LEVELS.
III. Event Probabilities 10 MAR to 12 MAR
| Class M | 50% | 50% | 50% |
| Class X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 09 MAR 206 Predicted 10 MAR-12 MAR 200/195/190 90 Day Mean 09 MAR 173
V. Geomagnetic A Indices
OBSERVED AFR/AP 08 MAR 009/013 ESTIMATED AFR/AP 09 MAR 003/008 PREDICTED AFR/AP 10 MAR-12 MAR 008/008-008/008-008/005
VI. Geomagnetic Activity Probabilities 10 MAR to 12 MAR
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 25% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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