Accession Number:

ADA495523

Title:

The Effects of Ambient Conditions of Cesium Clock Rates

Descriptive Note:

Conference paper

Corporate Author:

NAVAL OBSERVATORY WASHINGTON DC TIME SERVICE DIV

Personal Author(s):

Report Date:

1987-12-01

Pagination or Media Count:

11.0

Abstract:

The rates and errors of 42 cesium clocks in 6 different vaults at USNO were studied using 18 months of hourly data. Temperature effects were found to be negligible when the temperature was controlled to within plus or minus 1 degree C. During excursions much greater than this, rate changes in either sense are possible. No short-term humidity effects were evident, but there appears to be an annual variation in clock rates in either sense dependent on absolute humidity. Significant intercorrelations between clocks indicate the general importance of environmental conditions of some kind.

Subject Categories:

  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE