[LEAPSECS] BBC article

Steve Allen sla at ucolick.org
Fri Nov 4 14:10:19 EDT 2011


On Fri 2011-11-04T16:31:33 +0100, Nero Imhard hath writ:

> Somewhat interesting read

> http://www.bbc.co.uk/news/science-environment-15546124

>

> One thing stood out:


also the quote from Arias
Another application that is really very, very affected by the leap
second is time synchronisation in Global Navigation Satellite
Systems (GNSS).
GNSS rely on perfect time synchronisation - and leap seconds are a
nuisance.
is contrary to the contribution from Malys at futureofutc
where he stated that abandoning leap seconds
Will require resources to modify existing ICDs and operational software
Offers no benefits to NGA or GPS Operations
and he gave the cost of creating an ICD for GPS at about $100 million.

I think this is because GPS is one of the systems which was designed
robustly with the notion that configuration changes are a routine part
of the operation, so a leap second is just another routine change.

--
Steve Allen <sla at ucolick.org> WGS-84 (GPS)
UCO/Lick Observatory--ISB Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064 http://www.ucolick.org/~sla/ Hgt +250 m


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