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Re: Re: AO-40 MAs.



Bill,

I havn't been plugging in ALON/ALAT, sorry I can't help there. My
predictions of best time to listen are based upon when stations have
successfully received data, ... its retrospective not prospective. Looks
like MA 9 to 32, ... I'd say start at MA0 and keep going until MA32, and
capture what you can.

Paul, VP9MU
----- Original Message -----
From: "Bill Hurlock" <bill@hurlock.net>
To: "Paul Willmott" <pwillmott@northrock.bm>
Sent: Friday, December 29, 2000 11:54
Subject: Re: [amsat-bb] Re: AO-40 MAs.


> What ALAT/ALON are you pluging in Paul?
>
> Paul Willmott wrote:
>
> > Al,
> >
> > Interesting, ... since your email I have received some telem from orbit
74,
> > and it was captured earlier in the orbit than all previous ones, ...
here is
> > a breakdonw summary:
> >
> > Orbit 74
> > Total A Blocks 77
> >
> > First A Block at 2000-12-29 01:23:12 AO-40 UTC
> > Last  A Block at 2000-12-29 02:15:37 AO-40 UTC
> >
> > A Blocks by MA
> >
> > MA 009 - 1
> > MA 010 - 0
> > MA 011 - 0
> > MA 012 - 9
> > MA 013 - 10
> > MA 014 - 10
> > MA 015 - 10
> > MA 016 - 10
> > MA 017 - 10
> > MA 018 - 8
> > MA 019 - 2
> > MA 020 - 5
> > MA 021 - 2
> > MA 022 - 0
> >
> > I guess I'll expand my window of opportunity to MA 9 to MA 32, ... which
is
> > good news!
> >
> > 73
> > Paul, VP9MU
> > AMSAT-BDA
> >
> > ----- Original Message -----
> > From: <ALTENCZA@aol.com>
> > To: <pwillmott@northrock.bm>
> > Cc: <Jkelly@bellatlantic.net>
> > Sent: Friday, December 29, 2000 09:50
> > Subject: Re: AO-40 MAs.
> >
> > > OK, good. Since I do have Nova working with
> > > current Norad Keps, set #17, we can surmise that
> > > other ground stations will also have the same Keps
> > > and the same MAs.
> > >
> > > With Nova, it is easy to click on 'Show Orbits', and
> > > then the Nova display graphs the AO-40 ellipse itself
> > > with AO-40 labeled in its orbit MA position.
> > >
> > > So it is easy to see which MA is likely to have the s/c
> > > antennas nearly tangent to Earth when a ground station
> > > is in the AO-40 footprint. This then is a fairly good predictor
> > > of the strong signal portion of MAs. As the s/c moves out
> > > farther in the ellipse, the antennas are of course more
> > > off pointing with corresponding signal decay.
> > >
> > > Perhaps you could use my input to expand this MA prediction
> > > on the BB.
> > >
> > > Al   NX2Q
> > >
> >
> > ----
> > Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> > To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
>

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