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

[Magnus Danielson]

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