Accession Number:

ADA434295

Title:

The Accuracy of Two-Way Satellite Time Transfer Calibrations

Descriptive Note:

Conference paper

Corporate Author:

NAVAL OBSERVATORY WASHINGTON DC

Report Date:

2005-01-01

Pagination or Media Count:

11.0

Abstract:

Results from successive calibrations of Two-Way Satellite Time and Frequency Transfer TWSTFT operational equipment at USNO and five remote stations using portable TWSTFT equipment are analyzed for internal and external errors, finding an average random error of 0.35 ns, an average type-B uncertainty of 0.15 ns, and an average total error of 0.38 ns for a single calibration measurement over time spans of up to 4.9 years. Closure discrepancies suggest that the operational apparatus is at least as good as the calibration equipment.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE