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RE: Fw: [ans] ANS-180 ECHO Prelaunch Update



I will say it again - these ARE based on Lee's, but are the mean element
counterparts that an SGP4 propagator expects.  Using the osculating elements
will yield poor prediction quality.

73, Ken N2WWD

-----Original Message-----
From: owner-AMSAT-BB@AMSAT.Org [mailto:owner-AMSAT-BB@AMSAT.Org]On Behalf Of
Nick Adiletto
Sent: Monday, June 28, 2004 8:57 PM
To: Don Woodward
Cc: Amsat-BB
Subject: Re: [amsat-bb] Fw: [ans] ANS-180 ECHO Prelaunch Update

Don;

These work,but are not based on Lee's

ECHO
1 99999U 99999B   04015.44385708  .00000000  00000-0  00000-0 0 00013
2 99999 098.2700 042.0000 0072000 180.0000 226.0000 14.40910000000006



Nick
----- Original Message -----
From: "Don Woodward" <dbwoodw@alltel.net>
To: "Nick Adiletto" <K1UXBMA@comcast.net>
Sent: Monday, June 28, 2004 08:23 PM
Subject: Re: [amsat-bb] Fw: [ans] ANS-180 ECHO Prelaunch Update


> The checksum didn't work on Ken's elements and the RANN, Inclination and
> Epoch time were wrong.
>
> Try these...
>
> ECHO
> 1 99999U 99999B   04181.28143200  .00000000  00000-0  00000-0 1 00019
> 2 99999  98.2558 250.8905 0000113 275.4723 261.4170 14.40910000000008
>
>
> Based on Lee's numbers ...
>
> UTC Epoch    6/29/2004  06:45:15.06
> Inc                  98.25582
> RAAN            250.8905
> Ecc                 .00001139
> MA                261.417
> Arg Per          275.47233
> MM               14.4091
>
>
> Don Woodward
> KD4APP
> AMSAT 33535
> http://kd4app.webhop.org
>
>
> ----- Original Message -----
> From: "Nick Adiletto" <K1UXBMA@comcast.net>
> To: "Amsat-BB" <amsat-bb@AMSAT.Org>
> Sent: Monday, June 28, 2004 20:14
> Subject: Re: [amsat-bb] Fw: [ans] ANS-180 ECHO Prelaunch Update
>
>
> I got a checksum error from your posted set,can I chnage the sum ?
>
> Nick
> ----
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>
>
----
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