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Coordinate time in the vicinity of the Earth

Published online by Cambridge University Press:  04 August 2017

D. W. Allan  and
N. Ashby
D. W. Allan
Affiliation:
Time and Frequency Division, National Bureau of Standards Boulder, Colorado 80303
N. Ashby
Affiliation:
Department of Physics, Campus Box 390 University of Colorado, Boulder, Colorado 80309

Abstract

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Atomic clock accuracies continue to improve rapidly, requiring the inclusion of general relativity for unambiguous time and frequency clock comparisons. Atomic clocks are now placed on space vehicles and there are many new applications of time and frequency metrology. This paper addresses theoretical and practical limitations in the accuracy of atomic clock comparisons arising from relativity, and demonstrates that accuracies of time and frequency comparison can approach a few picoseconds and a few parts in 1016, respectively.

Type
Time Scales
Information
Symposium - International Astronomical Union , Volume 114: Relativity in Celestial Mechanics and Astrometry , 1986 , pp. 299 - 313
Copyright
Copyright © Reidel 1986 

References

Allan, D. W., Ashby, N., and Weiss, M. A., Science, 228 69 (1985).Google Scholar
Allan, D. W., Davis, D. D., Weiss, M., Clements, A., Guinot, B., Granveaud, M., Dorenwendt, K., Fisher, B., Hetzel, P., Aoki, S., Fujimoto, M. K., Charron, L., and Ashby, N., Conference on Precision Electromagnetic Measurements, IEEE-IM-34(2), 118 (June 1985).Google Scholar
Allan, D. W. and Weiss, M. A., Proc. 34th Ann. Frequency Control Symposium, Fort Monmouth, New Jersey, May 1980.Google Scholar
Allan, D. W., Alley, C. O., Ashby, N., Vessot, R. B. C., and Winkler, G. M. R., Journal de Physique 42, Colloque C-8, C8–395 (1981)Google Scholar
Alley, C. O., in Quantum Optics, Experimental Gravity, and Measurement Theory, Meystre, P. and Scully, M. O., Eds., Plenum (1983), p. 363.Google Scholar
Ashby, N., NBS Technical Note No. 659, 34, SD Catalogue No. C13.45:659, U. S. Govt. Printing office, Washington, D.C. 20402.Google Scholar
Ashby, N. and Allan, D. W., Radio Science 14, 649 (1979).Google Scholar
Ashby, N. and Allan, D. W., Phys. Rev. Letts. 53, 1858 (1984).Google Scholar
Ashby, N., Contract Report NB80RAA02404, Time and Frequency Division, Department of Commerce, Sept. 1980.Google Scholar
Backer, D., J. Astrophys. Astr. 5, 187 (1982).Google Scholar
Baker, T. F., Sci. Prof., Oxf. 69, 197 (1984).Google Scholar
Bilham, Roger, University of Colorad, private communication, (1985).Google Scholar
Buisson, J. A., Easton, R. L., McCaskill, T. B., Proc. of 9th PTTI Conference, NASA GSFC, 29 Nov.–1 Dec., 1977, pp. 177–195.Google Scholar
Douglas, R., NRC, private communication. (1985).Google Scholar
Comité Consultatif Pour La Définition de la Seconde, 9e Session, 23–25 Sept. 1980, pp. S14 ff.Google Scholar
Dehmelt, H., Journal de Physique 42, Colloque C-8, Suppl. No. 12, p. C8–299, (Dec. 1981).Google Scholar
Heiskanen, W. A. and Moritz, H., Physical Geodesy, W. H. Freeman (San Francisco, 1967), pp. 82 ff.Google Scholar
International Radio Consultative Committee, XVth Plenary Session, Geneva (1982), Vol. VII, pp. 112–115.Google Scholar
Hafele, J. C. and Keating, R. E., Science 177, 166 (1972).Google Scholar
Hafele, J. C., Proc. 3rd Annual PTTI Conference, Fort Monmouth, N.J., pp 261–283 and 407-408, (1971).Google Scholar
Kaplan, G. H., Ed., “The IAU Resolutions on Astronomical Constants, Time Scales, and the Fundamental Reference Frame,” USNO Circular No. 163, Dec. 1981.Google Scholar
Lerch, F. J., Klosko, S. M., Laubscher, R. E., and Wagener, C. A., J. Geophys. Res. 84, 389 (1979).Google Scholar
Post, E. J., Revs. Mod. Phys. 39, 475 (1967).Google Scholar
Saburi, Y., J. Radio Res. Labs. 23, 255 (1976).Google Scholar
Starker, S., Nau, H., Hammesfahr, J., Tachiesche, H., Proc. 14th Annual PTTI Conference, Greenbelt, Maryland, 30 Nov. 1982, pp. 181–203.Google Scholar
Vessot, R. F. C., Levine, M. W., Gen. Rel. and Grav. 10, 181 (1979).Google Scholar
Wineland, D. W., Science 226, 395 (24 Oct. 1984).Google Scholar
Yoshimura, K., RRL, private communication.Google Scholar