Solar Activity Report for 10/8/03
- On the whole, there isn't very much happening tonight. The solar wind
speed is still in the high 500's range, and the geomagnetic field
remains somewhat unsettled. However, a persistent north-pointing
Interplanetary Magnetic Field has been suppressing any strong
geomagnetic activity, and aurora are not expected on a widespread
scale as a result. With no significant coronal holes visible at this
time, look for the solar wind speed to begin dropping off, and for
geomagnetic activity stay pretty much in the unsettled category.
There are three numbered sunspot regions visible. Of the group,
region 471 looks to have the best chance for generating a significant
flare, although it has been quiet for several days.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 93
SFI : 113
A index : 8
K index : 4
Solar wind speed : 577.8 km/sec
Solar wind density : 2.1 protons/cc
Solar wind pressure : 1.0 nPa
IMF : 4.6 nT
IMF Orientation : 0.6 nT South
Conditions for the last 24 hours :
No space weather storms were observed for the past 24 hours.
Forecast for the next 24 hours :
No space weather storms are expected for the next 24 hours.
Solar activity forecast :
Solar activity is expected to remain at low levels. Region 471 has a
slight chance of producing an isolated M-class flare.
Geomagnetic activity forecast :
The geomagnetic field is expected to be at quiet to unsettled levels
through the majority of the period. Day three may see elevated
conditions due to a solar sector boundary crossing.
Recent significant solar flare activity :