Solar Activity Report for 2/2/04
- It was one year ago yesterday that Columbia was lost on re-entry.
Today's solar activity report is dedicated to Columbia and her crew.
Rick D. Husband
William C. McCool
Michael P. Anderson
David M. Brown
May their adventure forever continue. Rest in peace.
** Aurora Watch In Effect **
The solar wind speed is still on the high side of 600 km/sec tonight,
and G-1 geomagnetic storm conditions have been observed within the
last 24 hours. Therefore, an aurora watch remains in effect.
Skywatchers in the higher latitudes should keep an eye out for aurora.
The elevated geomagnetic conditions are expected to persist for
another 48 hours as the Earth travels through a high speed coronal
hole solar wind stream. There are three numbered sunspot regions
visible. While all of them have been relatively quiet thusfar,
regions 547 and 549 have at least an outside chance of generating a
The current solar and geomagnetic conditions are :
NOAA sunspot number : 106
SFI : 102
A index : 28
K index : 3
Solar wind speed : 624.2 km/sec
Solar wind density : 3.8 protons/cc
Solar wind pressure : 2.4 nPa
IMF : 7.1 nT
IMF Orientation : 5.1 nT South
Conditions for the last 24 hours :
Space weather for the past 24 hours has been minor. Geomagnetic storms
reaching the G1 level occurred.
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 low for the next three days (2-4
February). There is a slight chance for an isolated M-flare from
Region 547 or Region 549.
Geomagnetic activity forecast :
The geomagnetic field is expected to be unsettled to active for the
next two days (3-4 February), and should decline to mostly unsettled
with occasional active periods for the third day (5 February). The
enhanced activity is expected from favorably positioned coronal holes.
Recent significant solar flare activity :