[time-nuts] Faulty GPS SAT # 16 on Lady Heather

bg at lysator.liu.se bg at lysator.liu.se
Thu Jul 29 17:41:41 EDT 2010


It seems it is beeing moved.

56   16  Launched 29 JAN 2003; usable 18 FEB 2003; operating on Rb std
           Scheduled unusable 29 Jul 1345 UT to 30 Jul 0145 UT for
             repositioning maintenance (NANU 2010102)

from   ftp://tycho.usno.navy.mil/pub/gps/gpstd.txt

btw the Elmer Perkins Rb's beats most/all space CS out to a few days.
Since the ground crew updates clock preditions every day, there is not
that much need for the Cs _long_ term stability.

--

   Björn

> Once again, one of the 8 received satellites (#16) delivers no
> contribution to the time ensmble, although it got is over 40dbc
> strength. Lady Heather (beta 3.00) shows a hollow circle in the diagram,
> marked yellow in the list, and it has zero CLOCK BIAS and ACCU=0.
>
> Does anybody know, if that satellite is defect (e.g. Cs down), or if it
> has a special task, i.e. military purposes only?
>
> Frank
>
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