Setting Up an NTP Server at the Royal Observatory of Belgium

Abstract

This paper describes the setup of an NTP server for time synchronization via the Internet at the Royal Observatory of Belgium. The time server is realized by a "heartbeat" system of two PC servers connected to an NTS-3000 time server synchronized on three different sources: (1) UTC (ORB), our national time scale; (2) UTC broadcast by GPS satellite system; and (3) DCF-77 System. The precision of the synchronization between our time server and the different time sources is a few microseconds. A remote synchronization on our server, using the NTP protocol, is directly traceable to UTC with an utmost precision of a few milliseconds when the synchronization is done under optimal conditions.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2004
Accession Number
ADA485240

Entities

People

  • Andre Somerhausen
  • Fabian Roosbeek
  • Pascale Defraigne

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Buildings And Structures
  • Clocks
  • Computer Communications
  • Computer Networks
  • Computing Devices
  • Information Operations
  • Internet
  • Intervals
  • Local Area Networks
  • Networks
  • Observatories
  • Performance Tests
  • Precision
  • Research Facilities
  • Standards
  • Time Intervals

Readers

  • Database Systems and Applications
  • Positioning, Navigation, and Timing (PNT) Technology.

Technology Areas

  • Space