Hostname: page-component-77c89778f8-vpsfw Total loading time: 0 Render date: 2024-07-24T02:31:30.512Z Has data issue: false hasContentIssue false
  • English
  • Français

Derivation of Pole Coordinates in a Uniform System from the Past ILS Data

Published online by Cambridge University Press:  14 August 2015

S. Yumi ,
K. Yokoyama  and
H. Ishii
S. Yumi
Affiliation:
International Latitude Observatory, Mizusawa, Iwate, 023 Japan
K. Yokoyama
Affiliation:
International Latitude Observatory, Mizusawa, Iwate, 023 Japan
H. Ishii
Affiliation:
International Latitude Observatory, Mizusawa, Iwate, 023 Japan

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The recomputation of the past ILS observations has been carried out at Mizusawa and partly at Cagliari. Preliminary reduction of the observations at the northern stations has been completed. The coordinates of the pole were calculated preliminarily and were compared with those by Vicente and Yumi (1969, 1970). It is known that the coordinates of the pole in the past ILS reports require considerable corrections which are probably mainly due to errors of the micrometer values. Magnetic tapes of the original observational records and of the individual latitudes are now available on request.

Type
Part II: Polar Motion
Information
Symposium - International Astronomical Union , Volume 82: Time and the Earth's Rotation , 1979 , pp. 103 - 108
Copyright
Copyright © Reidel 1979 

References

Kinoshita, H.: 1977, Celes. Mech. 15, p. 277.Google Scholar
Manabe, S., Sasao, T., and Sakai, S.: 1978, Publ. Int. Latit. Obs., Mizusawa, Vol. XI, No. 2, p. 23.Google Scholar
Markowitz, Wm.: 1961, Bull. Geodes. 59, p. 29.Google Scholar
Sakai, S.: 1977, Proc. Japanese Symposium on the Rotation of the Earth, held in January 1978, at the Hydrographic Institute of Japan.Google Scholar
Vicente, R. O., and Yumi, S.: 1969, Publ. Int. Latit. Obs., Mizusawa, Vol. VII, No. 1, p. 41.Google Scholar
Vicente, R. O., and Yumi, S.: 1970, Publ. Int. Latit. Obs., Mizusawa, Vol. VII, No. 2, p. 109.Google Scholar
Woolard, E. W.: 1953, Astron. Papers of the American Ephemeris and Nautical Almanac, Vol. XV, Part I, Washington.Google Scholar
Yumi, S., Hurukawa, K., and Hirayama, T.: 1974, Publ. Int. Latit. Obs., Mizusawa, Vol. IX, No. 2, p. 175.Google Scholar
Yumi, S., and Yokoyama, K.: 1978, Results of the International Latitude Service, Vol. XII, for 1955–1966, Mizusawa.Google Scholar