Solar Activity Report for 12/15/04
- All is quiet this evening, and the sunspot number reflects the fact
that there are no big sunspot regions visible. Slowly but surely,
we're working our way towards the solar minimum, which is expected to
arrive in a little over two years from now. The only thing of note is
a coronal hole that is rotating towards an Earth-pointing position.
We could see some solar wind gusts from it along about the 16th.
The current solar and goemagnetic conditions are :
NOAA sunspot number : 28
SFI : 89
A index : 5
K index : 1
Solar wind speed : 368.6 km/sec
Solar wind density : 10.0 protons/cc
Solar wind pressure : 2.2 nPa
IMF : 9.9 nT
IMF Orientation : 1.2 nT North
GOES-12 Background X-ray Flux Level : B1
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 very low to low.
Geomagnetic activity forecast :
The geomagnetic field is expected to be quiet to active on 16 and 17
December due to the effects from a recurrent geoeffective coronal
hole. Conditions are expected to subside to quiet to unsettled on 18
Recent significant solar flare activity :