Viewing archive of Tuesday, 26 December 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 Dec 26 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 361 Issued at 2200Z on 26 Dec 2000IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z Solar activity has been moderate. Two new regions were
numbered today: 9288 (S21E26) and 9289 (S07E81). The latter
produced an M1/SF east limb event at 26/1613 UTC. Other activity
included several instances of low- and mid-level C-class activity,
most of which was optically uncorrelated, but with Region 9283
(S11E24) indicated by SOHO/EIT data as a likely source for some of
this activity. An active prominence on the southeast limb (S30E90)
was observed late in the period.
IB. Solar Activity Forecast
Solar activity is expected to be low
to moderate. Regions 9280 (N09W18), 9283, and 9289 all have
potential for isolated M-class activity.
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
The geomagnetic filed was quiet throughout the period.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled for the next three days.
III. Event Probabilities 27 Dec to 29 Dec
| Class M | 35% | 35% | 35% |
| Class X | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 26 Dec 189 Predicted 27 Dec-29 Dec 190/185/175 90 Day Mean 26 Dec 174
V. Geomagnetic A Indices
Observed Afr/Ap 25 Dec 006/006 Estimated Afr/Ap 26 Dec 004/006 Predicted Afr/Ap 27 Dec-29 Dec 005/010-005/010-005/010
VI. Geomagnetic Activity Probabilities 27 Dec to 29 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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