Re: Missed Daytime Iridium Flare

From: Thomas A. Troszak (
Date: Wed Mar 28 2001 - 08:47:15 PST

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    The Morris Family wrote: 
    > Yesterday, 26 March, Heavens Above showed a daytime flare at my location of
    > Iridium 6 at 6:18 CST. Yet this morning when I checked Heavens Above again
    > at 6:14 it showed nothing. Is this because of updated orbital elements?
    My experience indicates that there is a "hole" in the prediction
    software, sometimes the predictions for a "today"  flare (like in the
    next few minutes) do not show up in the "next 24 hours" link if it is
    too close to the actual time. 
    I have had the same thing happen when I went for a "last minute check"
    before running out the door to observe a flare.
    I think the workaround is to use the seven-day forecast for based on
    "today", and if the prediction for "today" does not appear, hit the
    "Prev" link, and you'll get it as the last date for the previous week.
    Try this for the flare in question and see if it works.
    Am I making sense here?
    Tom Troszak, 
    Asheville, NC, USA
    35.601 N, -82.554 W
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