NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: leap seconds a navigational hazard, says expert
From: Paul Hirose
Date: 2003 Aug 10, 09:55 -0700
From: Paul Hirose
Date: 2003 Aug 10, 09:55 -0700
Paul Hirose wrote: > > That "if" is where the danger lies. The correction for the difference > between time scales is done in software written by fallible humans. Here's a GPS receiver which will fail later this year because its firmware doesn't allow for a long period with no leap seconds. Fortunately, the failure is self-correcting after one second. http://www.leapsecond.com/notes/leapsec256.htm This old message from 1988 indicates leap second bugs have occurred many times. I'm not sure I believe that story about the French, though. http://www-mice.cs.ucl.ac.uk/multimedia/misc/tcp_ip/8801.mm.www/0022.html Does anyone have sight reduction software which allows input of the UT1-UTC difference? Does it permit the value to exceed one second?
