Solar Storm has Begun

From: Ted Molczan (
Date: Wed Oct 29 2003 - 07:33:29 EST

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    Solar storms cause large increases in atmospheric density at LEO orbital
    altitudes, resulting in large increases of drag on satellites; therefore,
    positional observers should expect satellites to be running early in the coming
    I recommend the following sites to follow the progress of the storm:
    This one reports geomagnetic activity, updated every 3 h. It shows that a very
    powerful storm has just begun:
    This site reports solar flux at various frequencies for the latest 7 days. It
    has been very high in recent days due to the recent smaller storms. It will be
    interesting to watch the effects of the present storm over the coming days:
    Ted Molczan
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