Accession Number:

ADA503925

Title:

Two-Way Satellite Time and Frequency Transfer (TWSTFT) Calibration Constancy From Closure Sums

Descriptive Note:

Conference paper

Corporate Author:

NAVAL OBSERVATORY WASHINGTON DC

Report Date:

2008-12-01

Pagination or Media Count:

19.0

Abstract:

Two-way Satellite Time and Frequency Transfer TWSTFT is considered to be the most accurate means of long-distance time transfer, on the basis of its reported 1 ns repeat calibration consistency. This paper uses the closure sum technique to show that variations of the link-based component of the transfer data, in the absence of configuration changes, are largely subnanosecond in the European links. Two explanations for small, but non-zero, biases observed in the closure sums of uncalibrated data are presented.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Unmanned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE