Hello list,
If NROL-20 (USA 186, #28888, 2005-042A) or its rocket was in the
second elset below, it would have been briefly visible from my
location at 19:38 UT. I used my digital camera to monitor the general
area (50x33 deg) from 19:29 to 19:59 UT with 1 minute exposures.
Though some clouds passed during this time, the images show no
satellite trails. From images I took of Lacrosse 5, I estimate that I
would have seen anything brighter than mag 3.
Regards,
Cees Bassa
Culemborg, The Netherlands
On 10/20/05, Ted Molczan <seesat@rogers.com> wrote:
> There are two possible solutions for any given altitude at SECO. I believe that
> the argument of perigee of the first elset (137 deg) probably is closest to
> being correct, because it is closest to that of the spacecraft being replaced,
> USA 129 (96072A / 24680), which was at arg perigee 117.4 deg at the time of
> launch.
>
> 175 X 1029 km
> 1 72001U 05292.75993057 .00807205 00000-0 10000-2 0 01
> 2 72001 97.8760 354.5813 0611200 137.5000 23.0000 14.87728598 08
>
> 175 X 1029 km
> 1 72001U 05292.75993056 .00807205 00000-0 10000-2 0 00
> 2 72001 97.8760 354.5813 0611200 189.0000 337.4000 14.87728598 02
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