Viewing archive of Thursday, 19 March 2009
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 2009 Mar 19 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 078 Issued at 2200Z on 19 Mar 2009IA. Analysis of Solar Active Regions and Activity from 18-2100Z to 19-2100Z Solar activity was very low. The solar disk remains
spotless. No flares were observed.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 18-2100Z to 19-2100Z
Geomagnetic field activity was at quiet levels. The greater than 2
MeV electron flux at geosynchronous orbit was at high levels early
in the period.
IIB. Geophysical Activity Forecast
Geomagnetic field activity is
expected to be quiet to unsettled thru days one and two (20-21
March), returning to quiet on day three (22 March).
III. Event Probabilities 20 Mar to 22 Mar
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 19 Mar 069 Predicted 20 Mar-22 Mar 070/070/070 90 Day Mean 19 Mar 070
V. Geomagnetic A Indices
Observed Afr/Ap 18 Mar 000/001 Estimated Afr/Ap 19 Mar 003/003 Predicted Afr/Ap 20 Mar-22 Mar 005/008-005/008-005/005
VI. Geomagnetic Activity Probabilities 20 Mar to 22 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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