- Status Report
- Jan 28, 2023
Joint USAF/NOAA Report of Solar and Geophysical Activity 26 Sep 2007
Product: Report of Solar-Geophysical Activity
Issued: 2007 Sep 26 2200 UTC
Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Environment Center and the U.S. Air Force.
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 269 Issued at 2200Z on 26 Sep 2007
IA. Analysis of Solar Active Regions and Activity from 25/2100Z to 26/2100Z: Solar activity has been very low. The visible solar disk remains spotless.
IB. Solar Activity Forecast: Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 25/2100Z to 26/2100Z: The geomagnetic field was quiet to unsettled. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels again today.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled 27 September. Conditions for 28 – 29 September are expected to range from unsettled to active as a coronal hole high speed stream rotates into a geoeffective position.
III. Event Probabilities 27 Sep-29 Sep
- Class M 01/01/01
- Class X 01/01/01
- Proton 01/01/01
- PCAF green
IV. Penticton 10.7 cm Flux
- Observed 26 Sep 070
- Predicted 27 Sep-29 Sep 067/067/067
- 90 Day Mean 26 Sep 069
V. Geomagnetic A Indices
- Observed Afr/Ap 25 Sep 005/006
- Estimated Afr/Ap 26 Sep 004/004
- Predicted Afr/Ap 27 Sep-29 Sep 006/008-012/015-015/025
VI. Geomagnetic Activity Probabilities 27 Sep-29 Sep
A. Middle Latitudes
- Active 15/40/40
- Minor storm 05/15/15
- Major-severe storm 01/05/05
B. High Latitudes
- Active 20/45/45
- Minor storm 10/20/20
- Major-severe storm 01/10/10