Solar Activity Report for 6/20/04
- All remains quiet, despite the continued presence the large sunspot
regions 634 and 635. Both of them look to have the sort of magnetic
complexity that could generate an M-class flare, but nothing yet.
With no substantial coronal holes visible, things should remain calm
for the next several days unless there is a significant flare.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 142
SFI : 119
A index : 3
K index : 1
Solar wind speed : 393.3 km/sec
Solar wind density : 3.1 protons/cc
Solar wind pressure : 0.8 nPa
IMF : 3.5 nT
IMF Orientation : 2.2 nT South
GOES-12 Background X-ray Flux level : B2
Conditions for the last 24 hours :
No space weather storms were observed for the past 24 hours.
Forecast for the next 24 hours :
Space weather for the next 24 hours is expected to be minor. Radio
blackouts reaching the R1 level are expected.
Solar activity forecast :
Solar activity is expected to be at low to moderate levels. Regions
634 and 635 are capable of producing M-class flare activity.
Geomagnetic activity forecast :
The geomagnetic field is expected to be at quiet to unsettled levels
throughout the forecast period.
Recent significant solar flare activity :