'Leap seconds' presentation slideshows

Time in Distributed Systems

Time in Distributed Systems. Outline. Physical Time NTP in Distributed Systems Lamport Logic Time Vector Clock File Synchronization with Vector Time Pairs. Physical Time.

697 views • 60 slides

Fundamental Concepts

Fundamental Concepts. March 2006. Topics. Preface Time Reference Frames Coordinate Systems Positions and States Aberration Corrections. Preface. This tutorial introduces terminology and concepts used in the later SPICE tutorials.

565 views • 34 slides

Fundamental Concepts

Fundamental Concepts. June 2004. Topics. Preface Time Reference Frames Coordinate Systems Positions and States Aberration Corrections. Preface. This tutorial introduces terminology and concepts used in the later SPICE tutorials.

542 views • 34 slides

Fundamental Concepts

Fundamental Concepts. October 2007. Topics. Preface Time Reference Frames Coordinate Systems Positions and States Aberration Corrections. Preface. This tutorial introduces terminology and concepts used in the later SPICE tutorials.

599 views • 34 slides

Fundamental Concepts

Fundamental Concepts. January 2009. Topics. Preface Time Reference Frames Coordinate Systems Positions and States Aberration Corrections. Preface. This tutorial introduces terminology and concepts used in the later SPICE tutorials.

405 views • 34 slides

Leap Seconds

Leap Seconds. Dennis McCarthy U. S. Naval Observatory. Definition of Seconds. Rotational Second 1 / 86,400 of mean solar day Ephemeris Second First used in 1956 1/31,556,925.9747 of tropical year 1900 Length of year based on 19 th century astronomical observations. Atomic Second.

344 views • 21 slides

DataGrid WP3 MAR-2002

312 views • 20 slides

WP3 Workshop 16/01/2002

301 views • 19 slides

Coordinated Universal Time (UTC)

564 views • 16 slides

Time

313 views • 7 slides

239 views • 2 slides

We were pleased to work with you and for you in 2013 and wish you a wonderful year 2014

We were pleased to work with you and for you in 2013 and wish you a wonderful year 2014. TAI UTC UTCr TT(BIPM) CIRCULAR T ANNUAL REPORT DATABASE. GNSS TWSTFT FIBRE CLOCKS PSFS LEAP SECONDS.

118 views • 1 slides