[time-nuts] GPS SVN-49 and some GLONASS news

Bob Camp lists at rtty.us
Thu Apr 1 13:09:01 UTC 2010


The "bring it back to the shop for a quick repair" option seems to be missing from their list of proposed fixes ....


On Mar 31, 2010, at 7:25 PM, Magnus Danielson wrote:

> Fellow time-nuts,
> The US Air Force is now more openly discussing the issues and means to mitigate them relating to SVN-49. It has provided an interesting exercise as not all the means available to mitigate that just reading ICD-GPS-200 may be applicable. They are discussing a number of different options and is attempting to get feedback from userland.
> http://www.insidegnss.com/node/2024
> http://www.navcen.uscg.gov/gps/news/Mar2010_svn49/SVN49_announcement.htm
> I just wanted to mention it for heads-up if anyone care to look at it.
> Oh, and the russians keeps tossing up GLONASS sats:
> http://www.federalspace.ru/main.php?id=3&nid=8948
> http://www.federalspace.ru/main.php?id=2&nid=8959
> http://www.glonass-ianc.rsa.ru/pls/htmldb/f?p=202:1:526211814162449
> http://www.glonass-ianc.rsa.ru/pls/htmldb/f?p=202:20:526211814162449::NO
> 21 sats in operation and 2 as flying spare. The spares is old birds being replaced by the new.
> Three slots remain unused at this time. Orbital plane II launch next time? CDMA at 1,2 GHz L3 later this year. They also cook up their own SBAS system. Shaping up over there.
> Cheers,
> Magnus
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