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Re: Sorry...I wasn't paying attention..(re: AO-40)



Roger,

     MA is easy to determine from Phase, but they are not the same.  MA
divides the orbit into 360 parts and Phase divides it into 256 parts.  The
easy conversion is to use 1.4 (It's pretty close) in other words.  Phase 0 =
MA 0, Phase 5 = MA 7, Phase 100 = MA 140, Phase 200 = MA 280.

73,
Joe
ka0yos@amsat.org

----- Original Message -----
From: <RogerKola@aol.com>
To: <amsat-bb@AMSAT.Org>
Sent: Tuesday, May 08, 2001 8:43 PM
Subject: [amsat-bb] Sorry...I wasn't paying attention..(re: AO-40)


> Now that I have time to do antenna work I realized I didn't absorb the
> critical nature of knowing the MA of AO-40 at any particular time...
>
> I have been using STSPlus and Traksat to predict my sat passes but because
> they don't seem to indicate MA I can't use them for AO-40 with any
confidence.
>
> Can someone recommend one or several tracking programs which directly
> indicate MA's?...do MA's have another name that I might be overlooking
like
> Predict's use of "Phase"?
>
> Or can MA be simply calculated from any of the screen info on the above
> programs?
>
> A Newbie question I know ...but for AO-40 I guess I'm still a newbie
>
> Thanks in advance!
>
> Roger
> WA1KAT
>
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