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Re: Re: xm-1 satellite as test signal



NO,  I will repeat the facts:

"The sirius satellites(3) are on a "figure 8" pattern roughly centered at
100ºW. There are always 2 satellites in view. The satellites are in
elliptical orbits of around 24hours"

The orbits are elliptical because their eccentricities are less than 1 and
not 0. The satellites in GEO orbits are the XM satellites and they do not do
figure eights because their inclination is almost 0. If they do a figure
eight it is a really really small "8".

Pieter

SIRIUS-1
1 26390U 00035A   02044.55945135  .00000037  00000-0  10000-3 0  3005
2 26390  63.3226 279.0595 2678821 270.0297  59.8007  1.00274383  5969
                                             ^^^^^^^
SIRIUS-2
1 26483U 00051A   02043.22570129 -.00000009  00000-0  00000-0 0  2056
2 26483  63.3988 159.5600 2705892 268.9723  60.2491  1.00280675  5284
                                             ^^^^^^^
SIRIUS-3
1 26626U 00077A   02042.89457043 -.00000121  00000-0  00000+0 0  1945
2 26626  63.4773  39.1121 2709246 269.6701  59.5665  1.00275203  4417
                                            ^^^^^^^
XM-2
1 26724U 01012A   02041.92821840 -.00000036  00000-0  00000-0 0  1910
2 26724   0.0267 133.0282 0000694 302.7905 284.1544  1.00272858  3398
XM-1
1 26761U 01018A   02037.28275247 -.00000215  00000-0  00000+0 0  1643
2 26761   0.0193 209.7738 0000153 148.5232 154.5403  1.00268495  2826
----- Original Message -----
From: "Bill Jones" <wejones@megalink.net>
To: <amsat-bb@AMSAT.Org>
Sent: Thursday, February 14, 2002 5:12 PM
Subject: Re: [amsat-bb] Re: xm-1 satellite as test signal


>
> > > > > The satellites are at 85º and 115ºW
> > > > >
> > > > > The sirius satellites(3) are on a "figure 8" pattern roughly
centered at
> > > > > 100ºW. There are always 2 satellites in view. The satellites are
in
> > > > > elliptical orbits of around 24hours.
>
>
> These satellites are in circular geosynchronous orbits, not eliptical.
> They are just inclined, so they appear to go through a figure 8
> motion viewed from the ground.
>
>
>  Bill Jones  N3JLQ  Sweden Maine   wejones@megalink.net
>  Main home page   http://www.megalink.net/~wejones
>  WWII/B-17 page   http://www.megalink.net/~wejones/wwii.html
>
> ----
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>
----
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