[amsat-bb] AOS predictor for PC? (Simple Window Graphic!)

Dave Taylor w8aas at verizon.net
Fri Dec 1 20:05:54 UTC 2017

It is a very handy prediction tool.  MacDoppler does this.

Dave, W8AAS

> On Dec 1, 2017, at 1:25 PM, Robert Bruninga <bruninga at usna.edu> wrote:
>> What is the 'gold standard' for AOS predictions on a PC (no phones, pls)?
> To me, it is this tiny 4k graphic that was displayed at the bottom of every
> APRStk screen 20 years ago.  It was everything I wanted in a tracking
> program:
> http://aprs.org/AMSAT/APRSTK-bar.png    Please look at it.
> It’s a horizontal graphic only an inch tall but wide.  The horizontal axis
> is in increments of ten minutes out to 3 hours.  The vertical is 0 to 90
> degrees elevation.  Every pass then in the next 3 hours shows as a hump.
> So in an instant,  you can see what satellites are coming up, when, and how
> high.  That is all you need to know whether a pass is worth taking or not.
> The deep blue one in the background was AO40 at the time that would be in
> view for many hours...  All the others are LEO's.
> I'd keep this on my PC always running all the time.
> And one can differentiate by colors.  One for AX.25, one for voice, one for
> linear, one for bleep sats and so on.  This particular screen shot shows the
> humps filled in.  But with so many sateliltes now, the hump should just be a
> solid line so you can see under them.
> If someone would write this in modern code instead of DOSbasic, I'd buy it!
> Bob, Wb4aPR
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