Viewing archive of Thursday, 22 September 2016
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 2016 Sep 22 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 266 Issued at 2200Z on 22 Sep 2016IA. Analysis of Solar Active Regions and Activity from 21-2100Z to 22-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C5 event observed at
22/0547Z from Region 2595 (N08W0*). There are currently 2 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
with a chance for a C-class flares on days one, two, and three (23 Sep,
24 Sep, 25 Sep).
IIA. Geophysical Activity Summary 21-2100Z to 22-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 525 km/s at 21/2320Z. Total IMF reached 7 nT at
22/0032Z. The maximum southward component of Bz reached -3 nT at
22/0837Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 1014 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one and two (23 Sep, 24 Sep) and quiet to
unsettled levels on day three (25 Sep).
III. Event Probabilities 23 Sep to 25 Sep
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 22 Sep 085 Predicted 23 Sep-25 Sep 085/085/090 90 Day Mean 22 Sep 086
V. Geomagnetic A Indices
Observed Afr/Ap 21 Sep 009/010 Estimated Afr/Ap 22 Sep 005/005 Predicted Afr/Ap 23 Sep-25 Sep 005/005-006/005-007/008
VI. Geomagnetic Activity Probabilities 23 Sep to 25 Sep
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 15% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 15% | 20% |
| Major-severe storm | 20% | 15% | 20% |
All times in UTC
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