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RE: how abt ao-40 beacon on mode-S?



MA is Mean Anomaly, normally this is 0 to 360 degrees around the orbit, but
in the case of P3 satellites which use an 8 bit IHU, the number is 0 to 256.
The 0-256 MA is sometimes called "Phase".

Paul, VP9MU

-----Original Message-----
From: Jon Ogden [mailto:na9d@mindspring.com]
Sent: Wednesday, November 29, 2000 12:18 PM
To: Achim Vollhardt; AMSAT Bulletin Board
Subject: Re: [amsat-bb] how abt ao-40 beacon on mode-S?


on 11/29/00 9:54 AM, Achim Vollhardt at avollhar@physik.unizh.ch wrote:

> Hi folks,
> seems, the 'mode-s beacon for testing' - idea wasn't so bad at all..
> live telemetry(29.11.00, 15:47 UT) announces the Mode-S general beacon
> to be turned on between MA 20 and MA 26. So anybody with mode-s equip:
> start listening, but beware of doppler, which will be huge at MA20-26,
> calculations for my qth say about 25 khz down the announced 2400.200
> MHz! Happy hunting..


What does the term "MA" mean?  Right now MA is at 166.  When does it
change....and what is it?

73,

Jon
NA9D

-------------------------------------
Jon Ogden
NA9D (ex: KE9NA)

Member:  ARRL, AMSAT, DXCC, NRA

http://www.qsl.net/ke9na

My President is George W. Bush -> The legal winner in Florida

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