Setting Up an NTP Server at the Royal Observatory of Belgium

Setting Up an NTP Server at the Royal Observatory of Belgium

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...

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Bibliographische Detailangaben
Hauptverfasser: Roosbeek, Fabian, Defraigne, Pascale, Somerhausen, Andre
Format: Report
Sprache:eng
Schlagworte:
ARTIFICIAL SATELLITES
BELGIUM
CLIENT SERVER SYSTEMS
COMMUNICATIONS PROTOCOLS
COMPONENT REPORTS
Computer Systems
FOREIGN REPORTS
GLOBAL POSITIONING SYSTEM
INTERNET
NETWORKS
NTP(NETWORK TIME PROTOCOL)
OBSERVATORIES
PRECISION
SYMPOSIA
SYNCHRONISM
Test Facilities, Equipment and Methods
TIME
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Beschreibung
Zusammenfassung: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. See also ADM001784. Presented at the Annual Precise Time and Time Interval (PTTI) Systems and Applications Meeting (36th) held in Washington, DC, on 7-9 December 2004. Published in the proceedings of the meeting, p237-246, 2004. The original document contains color images.