This report on GNSS vulnerabilities contains a paragraph on leap seconds http://www.raeng.org.uk/news/publications/list/reports/Global_Navigation_Systems.pdf
Leap seconds and roll-overs -- Generally the correct ongoing function of a GPS receiver can be tested and verified by manufacturers and users within the course of hours or days. GPS, however, is subject to events which occur rarely and may not be accounted for properly and only discovered after the event has occurred. GPS had a numerical roll-over in August 1999^11 that upset some receivers, and also the derivation of UTC from GPS time is subject to leap seconds once every few years that must be correctly handled. Although the ICD200 describes the correct way to handle leap seconds, some receivers still handle them wrongly and can cause a timing error. -- Steve Allen <[email protected]> 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 _______________________________________________ LEAPSECS mailing list [email protected] http://six.pairlist.net/mailman/listinfo/leapsecs
