Irregular variations in polar motion (EOP(IERS) C 04 filtered by CENSUS X-11)

COORDINATES (x,y) OF THE MEAN ROTATION AXIS, SINCE 1962 (EOP(IERS) C 01) N.B. : OX axis : 0° - OY AXIS : 90° W.

    date     x(")     y(")  
------------------------------------ 1962.5 0.011 0.174 1963.5 -0.004 0.190 1964.5 -0.009 0.202 1965.5 -0.008 0.204 1966.5 -0.003 0.201 1967.5 0.000 0.203 1968.5 -0.004 0.213 1969.5 -0.008 0.224 1970.5 -0.007 0.229 1971.5 -0.001 0.232 1972.5 0.008 0.235 1973.5 0.014 0.238 1974.5 0.017 0.244 1975.5 0.016 0.255 1976.5 0.017 0.266 1977.5 0.018 0.272 1978.5 0.020 0.273 1979.5 0.023 0.280 1980.5 0.027 0.292 1981.5 0.031 0.297 1982.5 0.034 0.297 1983.5 0.037 0.299 1984.5 0.041 0.299 1985.5 0.045 0.300 1986.5 0.047 0.302 1987.5 0.044 0.310 1988.5 0.043 0.316 1989.5 0.046 0.320 1990.5 0.048 0.329 1991.5 0.047 0.334 1992.5 0.048 0.335 1993.5 0.043 0.337 1994.5 0.040 0.353 1995.5 0.042 0.351 1996.5 0.042 0.340 1997.5 0.040 0.343 1998.5 0.040 0.353 1999.5 0.040 0.353