Zobrazeno 1 - 10
of 254
pro vyhledávání: '"D D, McCARTHY"'
Publikováno v:
Studia Geophysica et Geodaetica. 45:347-361
The polar motion prediction is computed as a least-squares extrapolation of the polar motion data. The least-squares model consists of a Chandler circle with constant or variable amplitude, annual and semiannual ellipses, and a bias. The model with c
Publikováno v:
Journal of Geodesy. 72:189-199
Autocovariance prediction has been applied to attempt to improve polar motion and UT1-UTC predictions. The predicted polar motion is the sum of the least-squares extrapolation model based on the Chandler circle, annual and semiannual ellipses, and a
Autor:
D. D. McCarthy
Publikováno v:
Highlights of Astronomy. 11:187-190
Systematic errors caused by the use of inconsistent models and constants currently limit the accuracy of the most precise astro-geodetic observations. It is important, therefore, to provide conventional estimates of astronomical constants for general
Autor:
D. D. McCarthy, J. Kovalevsky
Publikováno v:
Highlights of Astronomy. 11:182-186
We present a first description of the changes in the current procedures that will have to be performed in order to take into account the adoption of the ICRS as the new reference system and new nutation-precession series. A number of choices will hav
Autor:
G W A, DICK, D D, McCARTHY
Publikováno v:
East African medical journal. 23
Autor:
D. D. McCarthy, B. J. Luzum
Publikováno v:
Highlights of Astronomy ISBN: 9780792335542
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b83cf25d50c13b7c19810cbc16afa28
https://doi.org/10.1007/978-94-010-9374-3_19
https://doi.org/10.1007/978-94-010-9374-3_19
Autor:
D. D. Mccarthy, B. J. Luzum
Publikováno v:
Highlights of Astronomy ISBN: 9780792335542
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1d3f5dec2d5dcc3c99cc1f0c4e18629
https://doi.org/10.1007/978-94-010-9374-3_29
https://doi.org/10.1007/978-94-010-9374-3_29
Autor:
V. Dehant, D. D. McCarthy
Publikováno v:
Highlights of Astronomy. 10:247-248
The IAU General Assembly has adopted in 1980 a nutation series, on the one hand, based on rigid Earth’s contributions theorically computed from celestial mechanics, and on the other hand, based on non-rigid Earth’s contributions theoretically com
Autor:
D. N. Matsakis, K. J. Johnston, E. B. Waltman, R. L. Fiedler, F. J. Josties, D. R. Florkowski, D. D. McCarthy, J. H. Spencer
Publikováno v:
The Astrophysical Journal Supplement Series. 77:379
2.7 and 8.1 GHz radio light curves are presented for 46 compact radio sources observed with the Green Bank interferometer during the period 1979-1987. Flux densities for the period 1979-1985 were reported in a previous paper. The flux densities repor
Autor:
D. D. McCarthy, Alice K. Babcock
Publikováno v:
Physics of the Earth and Planetary Interiors. 44:281-292
Observed values of the difference between the time determined using the rotation of the Earth and a uniform time scale are available since 1627, with useful observations becoming available in 1656. These early data were recorded with low precision an