Solar Activity Report for 2/21/04
- All remains quiet tonight, as there isn't much happening to speak of.
The solar wind speed could edge upward a bit starting tomorrow due to
the influence of a small coronal hole that is in an Earth-pointing
position. There are three numbered subspot regions visible. While
none look to have the potential of generating a significant flare at
this time, sunspot region 564 has been growing rapidly, and now spans
more than 5 Earth diameters end-to-end. The background X-ray flux is
also beginning to show some signs of activity, so stay tuned over the
next few days.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 52
SFI : 98
A index : 6
K index : 1
Solar wind speed : 383.1 km/sec
Solar wind density : 4.0 protons/cc
Solar wind pressure : 0.9 nPa
IMF : 7.5 nT
IMF Orientation : 2.6 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 be at very low levels.
Geomagnetic activity forecast :
The geomagnetic field is expected to be at quiet to unsettled levels.
Isolated active conditions are possible, due to a small and variable
high speed stream.
Recent significant solar flare activity :