BULLETIN B 124 30 May 1998 Contents described in the Explanatory Supplement, mailed with Bulletin B121 1 - EARTH ORIENTATION PARAMETERS (IERS evaluation). The values in this section are samplings of section 2 given at five-day intervals. Date MJD x y UT1R-UTC UT1R-TAI dPsi dEpsilon 1998 " " s s 0.001" 0.001" (0h UTC) Final Bulletin B values. APR 1 50904 -.10983 .25206 .039222 -30.960778 -40.1 -7.7 APR 6 50909 -.11377 .26342 .029050 -30.970950 -39.3 -8.3 APR 11 50914 -.11367 .27677 .019020 -30.980980 -39.9 -7.8 APR 16 50919 -.11488 .29014 .009048 -30.990952 -39.2 -8.3 APR 21 50924 -.11359 .30419 -.000742 -31.000742 -38.5 -8.4 APR 26 50929 -.11300 .31707 -.010606 -31.010606 -40.2 -8.0 MAY 1 50934 -.11348 .32822 -.020299 -31.020299 -39.6 -8.7 MAY 6 50939 -.11427 .33895 -.029879 -31.029879 -39.6 -8.6 Preliminary extension, to be updated weekly in Bulletin A and monthly in Bulletin B. MAY 11 50944 -.11319 .34932 -.039047 -31.039047 -40.1 -8.2 MAY 16 50949 -.11074 .35976 -.047767 -31.047767 -38.7 -8.8 MAY 21 50954 -.10980 .36935 -.056934 -31.056934 -38.9 -8.5 MAY 26 50959 -.10742 .38201 -.066352 -31.066352 -40.0 -9.1 MAY 31 50964 -.10375 .39195 -.075130 -31.075130 -38.7 -9.3 JUN 5 50969 -.09777 .40127 -.083944 -31.083944 -39.8 -8.8 JUN 10 50974 -.09092 .41005 -.092129 -31.092129 -40.9 -9.0 JUN 15 50979 -.08338 .41821 -.099763 -31.099763 -40.2 -8.9 JUN 20 50984 -.07524 .42573 -.106976 -31.106976 -42.3 -8.4 JUN 25 50989 -.06661 .43254 -.113889 -31.113889 -43.3 -9.1 JUN 30 50994 -.05755 .43863 -.120614 -31.120614 -42.8 -8.5 JUL 5 50999 -.04813 .44396 -.127206 -31.127206 -45.1 -8.6 JUL 10 51004 -.03842 .44850 -.133721 -31.133721 -45.1 -8.8 JUL 15 51009 -.02850 .45226 -.140218 -31.140218 -45.4 -8.1 JUL 20 51014 -.01842 .45521 -.146733 -31.146733 -48.2 -8.6 JUL 25 51019 -.00826 .45735 -.153310 -31.153310 -47.1 -8.6 JUL 30 51024 .00192 .45866 -.160001 -31.160001 -48.6 -8.3 Note. In UT1R, the effects of zonal tides with periods shorter than 35 days are removed; UT1-UT1R ( smaller than 0.0025s in absolute value ) should be added after quadratic interpolation of UT1R.Section 2 of this Bulletin gives the daily interpolation of x, y, UT1, duration of day, dPsi, and dEpsilon. 2 - SMOOTHED VALUES OF X, Y, UT1, D, DPSI, DEPSILON (IERS EVALUATION) at one-day intervals. For smoothing characteristics, see Table2 in the explanatory supplement. The reference system is described in the 1996 IERS Annual Report. 1998 MJD x y UT1-UTC UT1-UT1R D dPsi dEpsilon (0 h UTC) " " s ms ms 0.001" 0.001" APR 1 50904 -.10983 .25206 .037802 -1.420 2.064 -40.1 -7.7 APR 2 50905 -.11028 .25442 .035814 -1.373 1.928 -39.9 -8.0 APR 3 50906 -.11087 .25687 .033924 -1.205 1.847 -39.7 -8.2 APR 4 50907 -.11181 .25928 .032102 -.974 1.792 -39.5 -8.3 APR 5 50908 -.11287 .26152 .030323 -.733 1.780 -39.3 -8.3 APR 6 50909 -.11377 .26342 .028530 -.520 1.830 -39.3 -8.3 APR 7 50910 -.11409 .26549 .026658 -.359 1.912 -39.4 -8.3 APR 8 50911 -.11403 .26827 .024708 -.255 1.961 -39.5 -8.1 APR 9 50912 -.11391 .27098 .022741 -.203 1.962 -39.6 -8.0 APR 10 50913 -.11391 .27364 .020791 -.184 1.952 -39.7 -7.9 APR 11 50914 -.11367 .27677 .018845 -.175 1.951 -39.9 -7.8 APR 12 50915 -.11364 .27959 .016897 -.150 1.943 -39.9 -7.8 APR 13 50916 -.11409 .28226 .014967 -.086 1.915 -39.9 -7.8 APR 14 50917 -.11454 .28516 .013072 .035 1.862 -39.8 -8.0 APR 15 50918 -.11480 .28764 .011244 .224 1.772 -39.6 -8.1 APR 16 50919 -.11488 .29014 .009524 .476 1.685 -39.2 -8.3 APR 17 50920 -.11452 .29289 .007865 .771 1.655 -38.9 -8.4 APR 18 50921 -.11380 .29586 .006199 1.074 1.677 -38.6 -8.5 APR 19 50922 -.11350 .29869 .004494 1.340 1.730 -38.5 -8.5 APR 20 50923 -.11346 .30136 .002723 1.516 1.835 -38.4 -8.5 APR 21 50924 -.11359 .30419 .000807 1.549 2.005 -38.5 -8.4 APR 22 50925 -.11372 .30707 -.001296 1.403 2.193 -38.8 -8.3 APR 23 50926 -.11354 .30985 -.003575 1.068 2.374 -39.2 -8.1 APR 24 50927 -.11367 .31261 -.006024 .581 2.523 -39.6 -8.1 APR 25 50928 -.11367 .31503 -.008590 .017 2.569 -39.9 -8.0 APR 26 50929 -.11300 .31707 -.011128 -.522 2.470 -40.2 -8.0 APR 27 50930 -.11252 .31906 -.013504 -.943 2.279 -40.2 -8.1 APR 28 50931 -.11273 .32128 -.015675 -1.189 2.075 -40.2 -8.2 APR 29 50932 -.11308 .32364 -.017661 -1.254 1.912 -40.0 -8.4 APR 30 50933 -.11309 .32601 -.019514 -1.172 1.810 -39.9 -8.5 MAY 1 50934 -.11348 .32822 -.021301 -1.002 1.768 -39.6 -8.7 MAY 2 50935 -.11346 .33015 -.023068 -.799 1.761 -39.4 -8.8 MAY 3 50936 -.11350 .33225 -.024836 -.610 1.766 -39.4 -8.9 MAY 4 50937 -.11390 .33435 -.026606 -.461 1.775 -39.4 -8.8 MAY 5 50938 -.11406 .33646 -.028388 -.365 1.797 -39.5 -8.7 MAY 6 50939 -.11427 .33895 -.030197 -.318 1.828 -39.6 -8.6 MAY 7 50940 -.11459 .34114 -.032037 -.307 1.846 -39.7 -8.4 MAY 8 50941 -.11448 .34334 -.033881 -.311 1.837 -39.9 -8.3 MAY 9 50942 -.11419 .34548 -.035704 -.305 1.808 -40.0 -8.2 MAY 10 50943 -.11368 .34728 -.037491 -.264 1.759 -40.0 -8.2 MAY 11 50944 -.11319 .34932 -.039217 -.170 1.683 -40.1 -8.2 MAY 12 50945 -.11277 .35177 -.040854 -.009 1.585 -40.0 -8.4 MAY 13 50946 -.11231 .35385 -.042387 .219 1.481 -39.8 -8.6 MAY 14 50947 -.11185 .35573 -.043824 .501 1.411 -39.5 -8.7 MAY 15 50948 -.11130 .35779 -.045222 .810 1.413 -39.2 -8.8 MAY 16 50949 -.11074 .35976 -.046666 1.101 1.491 -38.7 -8.8 MAY 17 50950 -.11045 .36149 -.048221 1.327 1.625 -38.4 -8.8 MAY 18 50951 -.11025 .36307 -.049931 1.438 1.787 -38.3 -8.8 MAY 19 50952 -.11012 .36504 -.051806 1.398 1.959 -38.3 -8.6 MAY 20 50953 -.10999 .36706 -.053850 1.190 2.156 -38.6 -8.5 MAY 21 50954 -.10980 .36935 -.056108 .826 2.344 -38.9 -8.5 MAY 22 50955 -.10949 .37184 -.058517 .356 2.434 -39.3 -8.5 MAY 23 50956 -.10905 .37446 -.060946 -.143 2.388 -39.7 -8.6 MAY 24 50957 -.10851 .37710 -.063278 -.581 2.260 -40.0 -8.7 MAY 25 50958 -.10794 .37963 -.065440 -.887 2.062 -40.1 -8.9 MAY 26 50959 -.10742 .38201 -.067380 -1.028 1.845 -40.0 -9.1 MAY 27 50960 -.10693 .38419 -.069113 -1.015 1.656 -39.9 -9.2 MAY 28 50961 -.10640 .38622 -.070710 -.895 1.523 -39.6 -9.3 MAY 29 50962 -.10570 .38814 -.072271 -.726 1.485 -39.4 -9.4 MAY 30 50963 -.10480 .39004 -.073879 -.559 1.506 -39.0 -9.4 MAY 31 50964 -.10375 .39195 -.075556 -.426 1.536 -38.7 -9.3 3 - NORMAL VALUES OF THE EARTH ORIENTATION PARAMETERS AT FIVE-DAY INTERVALS (IERS evaluation). Raw normal values Uncertainties 1998 MJD x y UT1-UTC dPsi dEps x y UT1 dPsi dEps (0 h UTC) " " s .001" .001" 0.0001s 0.001" APR 1 50904 -.10982 .25202 .037800 -40.09 -7.75 .11 .13 .08 .36 .20 APR 6 50909 -.11394 .26329 .028532 -38.98 -8.03 .12 .12 .09 .41 .20 APR 11 50914 -.11368 .27677 .018846 ~ ~ .11 .12 .16 ~ ~ APR 16 50919 -.11506 .29008 .009524 -39.35 -8.52 .11 .13 .07 .28 .15 APR 21 50924 -.11373 .30405 .000808 -38.66 -8.63 .11 .11 .08 .40 .22 APR 26 50929 -.11290 .31715 -.011128 ~ ~ .19 .21 .25 ~ ~ MAY 1 50934 -.11349 .32820 -.021301 -39.87 -8.93 .12 .12 .08 .31 .15 MAY 6 50939 -.11434 .33891 -.030197 -39.60 -8.57 .12 .13 .08 .31 .18 MAY 11 50944 -.11310 .34932 -.039217 -39.66 -7.74 .10 .13 .07 .21 .15 MAY 16 50949 -.11084 .35976 -.046665 ~ ~ .11 .13 .12 ~ ~ MAY 21 50954 -.10975 .36932 -.056109 -38.57 -8.14 .11 .14 .12 2.51 .88 MAY 26 50959 -.10725 .38230 ~ ~ ~ .13 .15 .00 ~ ~ 4 - DURATION OF THE DAY AND ANGULAR VELOCITY OF THE EARTH (IERS evaluation). The data of this section are smoothed, with the same characteristics as UT1R in section 1. They are corrected for the effects of zonal tides with periods up to 35 days. Section 2 gives the daily interpolation of D. Date (0h UTC) DR OmegaR 1998 MJD s (microrad/s) APR 1 50904 .00204 72.921 14975 APR 6 50909 .00202 14976 APR 11 50914 .00197 14981 APR 16 50919 .00197 14981 APR 21 50924 .00196 14981 APR 26 50929 .00198 14979 5 - INFORMATION ON TIME SCALES All information concerning time scales : announcements of the leap seconds (Bulletin C) and of the value of DUT1 (Bulletin D) can be found in our web/ftp site : World Wide Web : http://hpiers.obspm.fr Anonymous ftp : hpiers.obspm.fr or 145.238.100.28 6 - SUMMARY OF CONTRIBUTED EARTH ORIENTATION PARAMETERS SERIES This section gives the average precision of the individual series contri- buting to the combination and their average agreement with it. The periods covered start at the beginning of the first month in Section 1 and end with the last available value in the individual series considered. The complete list of measurements is available in the electronic-mailed version of Bulletin B in section 7. Units : 0.001" for x,y , 0.0001s for UT1, 0.001" for dPsi, dEpsi. -------------------------------------------------------------------------------- EOP series Mean formal uncertainty Periods covered Weighted RMS agreement with Bulletin B -------------------------------------------------------------------------------- x y UT D dPsi dEps Data Number VLBI EOP(IAA) 98 R 01 .11 .10 .05 - .22 .08 7 50904.25 to 50946.25 .18 .17 .06 - .33 .11 EOP(USNO) 97 R 08 .19 .16 .12 .45 .39 .13 8 50904.25 to 50953.11 .21 .13 .01 .53 .03 .02 EOP(USNO) 97 R 09 - - .13 - - - 36 50906.68 to 50955.72 - - .18 - - - LLR EOP(UTXMO)96 M 01 TLRS - - 2.59 - - - 13 50904.10 to 50941.16 - - .89 - - - GPS EOP(CODE) 98 P 01 .01 .01 - .01 - - 53 50904.50 to 50956.50 .10 .10 - .23 - - EOP(EMR) 96 P 03 .06 .06 - .10 - - 56 50904.50 to 50960.50 .18 .21 - .54 - - EOP(ESOC) 96 P 01 .03 .03 - .06 - - 46 50904.50 to 50949.50 .13 .11 - .38 - - EOP(GFZ) 96 P 02 .01 .02 - .03 - - 53 50904.50 to 50956.50 .12 .15 - .46 - - EOP(JPL) 96 P 03 .02 .03 - .10 - - 46 50904.50 to 50949.50 .10 .09 - .39 - - EOP(NOAA) 96 P 01 .03 .03 - .14 - - 52 50904.50 to 50955.50 .26 .28 - .38 - - EOP(SIO) 96 P 01 .06 .06 - .17 - - 46 50904.50 to 50949.50 .17 .18 - .38 - - EOP(IGS) 95 P 02 .06 .06 .23 .08 - - 46 50904.50 to 50949.50 .09 .08 .20 .21 - - EOP(IGS) 96 P 02 .08 .09 .65 .11 - - 53 50904.50 to 50960.50 .13 .13 .66 .90 - - EOP(IERS) 97 P 01 .08 .09 .17 .12 - - 57 50904.50 to 50960.50 .07 .07 .37 .33 - - SLR EOP(CGS) 97 L 02 .20 .18 1.84 - - - 55 50904.00 to 50958.00 .57 .48 1.54 - - - EOP(CSR) 95 L 01 .32 .31 .42 - - - 18 50907.19 to 50957.57 .26 .24 .67 - - - EOP(DUT) 98 L 01 .13 .13 - - - - 18 50904.00 to 50955.00 .35 .44 - - - - EOP(IAA) 98 L 02 .04 .03 .02 .02 - - 57 50904.00 to 50960.00 .16 .10 .52 .26 - - EOP(MCC) 97 L 01 .06 .05 - .10 - - 18 50904.00 to 50955.00 .16 .23 - .46 - - Bulletin A EOP(NEOS) 97 C 01 .09 .09 .17 - - - 61 50904.00 to 50964.00 .10 .09 .22 - - - 7 - INDIVIDUAL SERIES OF EARTH ORIENTATION PARAMETERS The series listed hereafter,obtained by the IERS Operational Centres, have been used for the evaluations of Section 1. They are described in IERS Annual Report or in the IERS Technical Notes . 7-a - Very Long Base Radio Interferometry - EOP(IAA) 98 R 01 Units : 0.00001" for x,y , 0.000001s for UT1 ,0.00001" for dPsi,dEpsi. Date Uncertainties 1998 MJD x y UT1-UTC dPsi dEpsi x y UT1-UTCdPsi dEpsi APR 1 50904.25 -10997 25267 37311 -3982 -781 13 11 6 25 10 APR 8 50911.25 -11412 26900 24207 -3926 -810 13 14 8 26 10 APR 15 50918.25 -11501 28827 10817 -3972 -842 9 8 4 18 7 APR 22 50925.25 -11355 30745 -1849 -3849 -823 12 11 6 25 9 APR 29 50932.25 -11313 32446 -18127 -4043 -845 11 9 4 19 8 MAY 6 50939.25 -11449 33965 -30643 -3955 -863 12 11 4 24 9 MAY 13 50946.25 -11197 35448 -42750 -3939 -864 11 9 5 19 7 7-b - Very Long Base Radio Interferometry - EOP(USNO) 97 R 08 Units : 0.00001" for x,y , 0.000001s for UT1 ,0.00001" for dPsi,dEpsi. Date Uncertainties 1998 MJD x y UT1-UTC dPsi dEpsi x y UT1-UTCdPsi dEpsi APR 1 50904.25 -11008 25259 37294 -4019 -788 14 11 6 25 10 APR 8 50911.25 -11462 26882 24220 -3962 -819 18 16 9 29 10 APR 15 50918.25 -11526 28808 10811 -3953 -825 11 9 5 18 6 APR 22 50925.25 -11388 30748 -1847 -3901 -832 17 14 8 28 12 APR 29 50932.25 -11308 32426 -18131 -4003 -850 11 9 4 21 6 MAY 6 50939.25 -11487 33968 -30649 -3977 -862 13 10 5 21 9 MAY 13 50946.25 -11237 35424 -42749 -3985 -867 10 7 4 13 7 MAY 20 50953.11 -11060 36748 -54085 -3868 -858 55 50 52 155 45 7-c - Very Long Base Radio Interferometry - EOP(USNO) 97 R 09 Units : 0.00001" for x,y , 0.000001s for UT1 ,0.00001" for dPsi,dEpsi. Date Uncertainties 1998 MJD x y UT1-UTC dPsi dEpsi x y UT1-UTCdPsi dEpsi APR 3 50906.68 32714 11 APR 4 50907.68 30932 11 APR 4 50907.84 30606 8 APR 7 50910.89 24949 19 APR 8 50911.69 23307 25 APR 9 50912.67 21452 13 APR 10 50913.67 19500 11 APR 11 50914.66 17559 16 APR 11 50914.82 17256 10 APR 13 50916.66 13722 23 APR 16 50919.65 8450 12 APR 17 50920.64 6798 17 APR 18 50921.64 5086 19 APR 18 50921.80 4835 12 APR 20 50923.64 1529 20 APR 21 50924.63 -489 13 APR 23 50926.63 -5080 11 APR 24 50927.63 -7623 14 APR 25 50928.62 -10178 11 APR 25 50928.79 -10627 10 APR 27 50930.62 -14865 18 APR 28 50931.62 -16926 16 APR 30 50933.61 -20577 12 MAY 4 50937.76 -27996 11 MAY 7 50940.76 -33445 13 MAY 8 50941.75 -35251 12 MAY 9 50942.75 -37049 6 MAY 9 50942.92 -37349 8 MAY 11 50944.75 -40439 11 MAY 14 50947.74 -44850 8 MAY 15 50948.73 -46250 11 MAY 16 50949.73 -47777 6 MAY 16 50949.90 -48016 9 MAY 18 50951.73 -51278 10 MAY 21 50954.72 -57828 9 MAY 22 50955.72 -60257 10 7-d - Lunar Laser Ranging - EOP(UTXMO)96 M 01 (UNIT : 0.000001s for UT0-UTC) Date Uncertainties 1998 MJD UT0-UTC UTO-UTC STATION REFLECTOR APR 1 50904.096 38950 190 TLR HAD APR 2 50905.118 37010 170 TLR HAD APR 4 50907.127 33300 220 TLR HAD APR 5 50908.163 31410 170 TLR HAD APR 6 50909.183 29470 180 TLR HAD APR 14 50917.431 13480 140 TLR HAD APR 15 50918.379 11590 190 TLR HAD APR 17 50920.458 8140 290 TLR HAD APR 18 50921.496 6250 270 TLR HAD MAY 4 50937.195 -26310 250 TLR HAD MAY 5 50938.121 -28040 460 TLR HAD MAY 7 50940.230 -31630 360 TLR HAD MAY 8 50941.158 -33500 480 TLR HAD 7 -e - EOP(CODE) 98 P 01 Units : 0.00001" for x,y, 0.000001s for UT1 and D. Date Uncertainties 1998 MJD x y UT1-UTC D x y UT1-UTC D APR 1 50904.50 -10986 25329 44388 2020 1 1 3 2 APR 2 50905.50 -11045 25579 42439 1896 1 1 3 2 APR 3 50906.50 -11115 25816 40588 1827 1 1 3 2 APR 4 50907.50 -11206 26041 38751 1838 1 1 3 1 APR 5 50908.50 -11303 26246 36902 1867 1 1 3 1 APR 6 50909.50 -11366 26464 35038 1891 1 1 3 1 APR 7 50910.50 -11379 26701 33125 1942 1 1 2 1 APR 8 50911.50 -11378 26964 31173 1976 2 1 3 1 APR 9 50912.50 -11356 27238 29208 1978 2 1 3 1 APR 10 50913.50 -11343 27520 27225 1985 2 1 3 1 APR 11 50914.50 -11339 27816 25216 1998 2 1 3 1 APR 12 50915.50 -11366 28097 23231 1963 1 1 2 1 APR 13 50916.50 -11411 28376 21312 1887 1 1 2 1 APR 14 50917.50 -11445 28630 19453 1826 1 1 2 1 APR 15 50918.50 -11457 28891 17674 1750 1 1 2 1 APR 16 50919.50 -11442 29148 15972 1684 1 1 2 1 APR 17 50920.50 -11402 29435 14308 1664 2 1 3 1 APR 18 50921.50 -11368 29731 12625 1707 2 1 2 1 APR 19 50922.50 -11343 30013 10881 1796 1 1 2 1 APR 20 50923.50 -11342 30283 9033 1925 1 1 2 1 APR 21 50924.50 -11344 30554 7028 2099 1 1 2 1 APR 22 50925.50 -11345 30837 4834 2286 1 1 2 1 APR 23 50926.50 -11342 31121 2431 2472 1 1 2 1 APR 24 50927.50 -11328 31383 -123 2581 1 1 2 1 APR 25 50928.50 -11305 31615 -2697 2550 1 1 2 1 APR 26 50929.50 -11268 31818 -5160 2394 1 1 2 1 APR 27 50930.50 -11246 32035 -7417 2165 1 1 2 1 APR 28 50931.50 -11260 32264 -9466 1961 1 1 2 1 APR 29 50932.50 -11292 32492 -11377 1843 1 1 2 1 APR 30 50933.50 -11315 32709 -13218 1805 1 1 2 1 MAY 1 50934.50 -11325 32912 -15032 1805 1 1 2 1 MAY 2 50935.50 -11332 33120 -16826 1806 1 1 2 1 MAY 3 50936.50 -11353 33324 -18587 1784 1 1 3 1 MAY 4 50937.50 -11382 33540 -20337 1777 1 1 3 1 MAY 5 50938.50 -11406 33772 -22127 1813 1 1 3 2 MAY 6 50939.50 -11424 34015 -23964 1852 1 1 3 2 MAY 7 50940.50 -11424 34244 -25836 1875 1 1 3 2 MAY 8 50941.50 -11413 34452 -27690 1846 1 1 3 2 MAY 9 50942.50 -11384 34652 -29520 1810 1 1 3 2 MAY 10 50943.50 -11340 34848 -31286 1737 2 1 3 2 MAY 11 50944.50 -11287 35052 -32971 1651 2 1 3 2 MAY 12 50945.50 -11237 35266 -34576 1572 2 1 3 2 MAY 13 50946.50 -11194 35484 -36080 1480 2 1 3 2 MAY 14 50947.50 -11147 35690 -37516 1428 2 1 3 2 MAY 15 50948.50 -11101 35882 -38959 1457 2 1 3 2 MAY 16 50949.50 -11059 36055 -40492 1572 2 1 3 2 MAY 17 50950.50 -11027 36229 -42151 1721 2 1 3 1 MAY 18 50951.50 -10996 36406 -43986 1914 2 1 3 1 MAY 19 50952.50 -10980 36599 -46006 2106 1 1 2 1 MAY 20 50953.50 -10968 36809 -48184 2251 1 1 2 1 MAY 21 50954.50 -10951 37051 -50505 2366 1 1 2 1 MAY 22 50955.50 -10909 37310 -52910 2408 2 1 2 1 MAY 23 50956.50 -10866 37584 -55295 2343 1 1 2 1 7 -f - EOP(EMR) 96 P 03 Units : 0.00001" for x,y, 0.000001s for UT1 and D. Date Uncertainties 1998 MJD x y UT1-UTC D x y UT1-UTC D APR 1 50904.50 -11040 25379 25338 1999 6 6 22 10 APR 2 50905.50 -11066 25622 23381 1883 6 6 23 10 APR 3 50906.50 -11166 25865 21560 1809 6 6 23 10 APR 4 50907.50 -11240 26085 19744 1827 7 7 23 12 APR 5 50908.50 -11351 26312 17917 1865 5 6 22 9 APR 6 50909.50 -11432 26490 16070 1820 6 6 22 9 APR 7 50910.50 -11428 26736 14191 1840 6 6 22 10 APR 8 50911.50 -11427 27019 12273 1944 6 6 22 11 APR 9 50912.50 -11426 27298 10327 1946 6 6 22 10 APR 10 50913.50 -11397 27591 8382 1902 7 7 22 12 APR 11 50914.50 -11389 27869 6429 1947 6 6 22 11 APR 12 50915.50 -11410 28164 4448 1925 6 6 22 10 APR 13 50916.50 -11464 28427 2589 1808 6 6 22 11 APR 14 50917.50 -11521 28701 756 1828 6 6 23 10 APR 15 50918.50 -11505 28950 -992 1748 6 6 23 10 APR 16 50919.50 -11504 29204 -2679 1659 6 6 23 10 APR 17 50920.50 -11454 29468 -4312 1676 6 6 23 11 APR 18 50921.50 -11383 29770 -5993 1668 6 6 22 10 APR 19 50922.50 -11359 30029 -7723 1764 6 6 22 10 APR 20 50923.50 -11357 30311 -9577 1932 6 6 22 10 APR 21 50924.50 -11398 30559 -11560 2000 6 6 22 10 APR 22 50925.50 -11385 30874 -13721 2231 5 6 22 9 APR 23 50926.50 -11366 31162 -16113 2440 6 6 22 10 APR 24 50927.50 -11375 31443 -18663 2530 6 6 21 11 APR 25 50928.50 -11357 31657 -21266 2547 5 5 21 9 APR 26 50929.50 -11304 31817 -23750 2302 6 6 22 10 APR 27 50930.50 -11259 32043 -26056 2152 6 6 22 10 APR 28 50931.50 -11262 32273 -28093 1942 5 6 22 10 APR 29 50932.50 -11329 32538 -30001 1799 5 6 22 10 APR 30 50933.50 -11324 32747 -31794 1795 6 6 22 12 MAY 1 50934.50 -11343 32954 -33607 1795 6 6 21 11 MAY 2 50935.50 -11340 33147 -35411 1816 6 6 22 11 MAY 3 50936.50 -11387 33358 -37204 1778 6 6 21 10 MAY 4 50937.50 -11430 33569 -38999 1693 6 6 21 11 MAY 5 50938.50 -11434 33800 -40766 1761 6 6 21 10 MAY 6 50939.50 -11471 34029 -42593 1811 6 6 21 10 MAY 7 50940.50 -11466 34255 -44458 1831 6 6 21 11 MAY 8 50941.50 -11427 34478 -46319 1786 6 6 22 10 MAY 9 50942.50 -11420 34664 -48117 1790 6 6 22 10 MAY 10 50943.50 -11361 34869 -48947 1699 8 7 22 11 MAY 11 50944.50 -11304 35068 -51555 1648 6 6 22 10 MAY 12 50945.50 -11286 35256 -53135 1445 6 6 22 10 MAY 13 50946.50 -11217 35499 -54639 1461 6 6 22 10 MAY 14 50947.50 -11182 35697 -56070 1407 6 6 22 10 MAY 15 50948.50 -11098 35891 -57500 1423 6 6 22 10 MAY 16 50949.50 -11069 36068 -58992 1529 6 6 22 10 MAY 17 50950.50 -11039 36256 -60647 1730 6 6 22 10 MAY 18 50951.50 -11010 36426 -62449 1873 6 6 22 10 MAY 19 50952.50 -10971 36599 -64479 2087 6 6 22 10 MAY 20 50953.50 -10987 36830 -66677 2212 6 6 22 11 MAY 21 50954.50 -10967 37050 -68985 2342 6 6 22 11 MAY 22 50955.50 -10930 37320 -71373 2314 6 6 22 10 MAY 23 50956.50 -10905 37636 -73731 2198 6 6 22 10 MAY 24 50957.50 -10858 37882 -75027 2176 7 7 22 12 MAY 25 50958.50 -10754 38111 -77083 1917 8 8 21 13 MAY 26 50959.50 -10736 38338 -78800 1732 18 18 21 113 MAY 27 50960.50 -10718 38566 -80518 1548 7 7 21 12 7 -g - EOP(ESOC) 96 P 01 Units : 0.00001" for x,y, 0.000001s for UT1 and D. Date Uncertainties 1998 MJD x y UT1-UTC D x y UT1-UTC D APR 1 50904.50 -11008 25335 36953 1995 3 4 7 6 APR 2 50905.50 -11043 25592 35022 1856 3 4 7 6 APR 3 50906.50 -11106 25820 33174 1771 3 3 7 6 APR 4 50907.50 -11195 26050 31324 1791 3 3 7 6 APR 5 50908.50 -11326 26271 29467 1847 4 4 7 6 APR 6 50909.50 -11361 26473 27652 1775 4 4 7 6 APR 7 50910.50 -11379 26697 25761 1858 3 3 6 6 APR 8 50911.50 -11402 26990 24165 1891 3 3 7 6 APR 9 50912.50 -11369 27233 22229 1961 4 4 7 6 APR 10 50913.50 -11336 27534 20023 1915 4 4 7 6 APR 11 50914.50 -11337 27822 18065 1951 3 3 6 5 APR 12 50915.50 -11368 28111 16147 1907 3 3 7 6 APR 13 50916.50 -11400 28389 14199 1822 4 4 7 6 APR 14 50917.50 -11460 28661 12285 1769 3 4 7 5 APR 15 50918.50 -11462 28900 10451 1698 3 3 6 5 APR 16 50919.50 -11453 29163 8690 1640 3 3 6 5 APR 17 50920.50 -11399 29439 6997 1667 3 4 7 6 APR 18 50921.50 -11334 29743 5335 1650 3 3 7 5 APR 19 50922.50 -11331 30027 3580 1740 3 3 6 5 APR 20 50923.50 -11319 30296 1698 1903 3 3 6 5 APR 21 50924.50 -11326 30571 -293 2025 3 3 7 6 APR 22 50925.50 -11343 30854 -2502 2243 3 3 6 5 APR 23 50926.50 -11335 31139 -4869 2438 3 3 7 6 APR 24 50927.50 -11336 31425 -7350 2539 3 3 7 6 APR 25 50928.50 -11315 31632 -9882 2544 3 3 7 5 APR 26 50929.50 -11255 31803 -12324 2388 3 3 7 6 APR 27 50930.50 -11227 32032 -14587 2154 3 3 6 5 APR 28 50931.50 -11238 32275 -16669 1937 3 3 7 6 APR 29 50932.50 -11296 32494 -18605 1809 3 3 7 6 APR 30 50933.50 -11305 32731 -20471 1802 3 3 7 5 MAY 1 50934.50 -11309 32920 -22295 1829 3 3 7 5 MAY 2 50935.50 -11307 33118 -24100 1819 4 4 7 7 MAY 3 50936.50 -11351 33347 -25887 1774 4 4 7 7 MAY 4 50937.50 -11363 33536 -27628 1736 4 4 7 7 MAY 5 50938.50 -11404 33778 -29398 1755 4 4 7 6 MAY 6 50939.50 -11418 34014 -31233 1826 3 3 7 6 MAY 7 50940.50 -11436 34241 -33100 1881 4 4 7 6 MAY 8 50941.50 -11410 34466 -34913 1805 4 4 7 7 MAY 9 50942.50 -11390 34638 -36727 1774 3 3 7 6 MAY 10 50943.50 -11324 34850 -38478 1716 3 3 7 6 MAY 11 50944.50 -11285 35050 -40100 1620 3 3 6 5 MAY 12 50945.50 -11217 35304 -41649 1539 4 4 7 6 MAY 13 50946.50 -11188 35496 -43116 1431 3 3 7 5 MAY 14 50947.50 -11119 35712 -44532 1384 3 3 7 5 MAY 15 50948.50 -11090 35881 -45986 1411 3 3 7 5 MAY 16 50949.50 -11036 36079 -47512 1563 3 3 7 6 7 -h - EOP(GFZ) 96 P 02 Units : 0.00001" for x,y, 0.000001s for UT1 and D. Date Uncertainties 1998 MJD x y UT1-UTC D x y UT1-UTC D APR 1 50904.50 -10987 25344 36887 1983 2 2 3 3 APR 2 50905.50 -11039 25594 34982 1836 2 2 3 3 APR 3 50906.50 -11114 25821 33172 1791 2 2 3 3 APR 4 50907.50 -11212 26043 31234 1778 2 2 3 3 APR 5 50908.50 -11325 26261 29439 1817 2 2 3 3 APR 6 50909.50 -11390 26444 27635 1795 2 2 3 3 APR 7 50910.50 -11383 26686 25811 1853 2 2 3 3 APR 8 50911.50 -11373 26958 23915 1934 2 2 3 3 APR 9 50912.50 -11353 27233 21967 1958 2 2 3 3 APR 10 50913.50 -11340 27520 20040 1894 2 2 3 3 APR 11 50914.50 -11326 27826 17794 1963 2 2 3 3 APR 12 50915.50 -11354 28105 15858 1908 2 2 3 3 APR 13 50916.50 -11405 28368 13984 1835 2 2 3 3 APR 14 50917.50 -11451 28637 12164 1804 2 2 3 3 APR 15 50918.50 -11462 28874 10399 1727 2 2 3 3 APR 16 50919.50 -11449 29143 8717 1643 2 2 3 3 APR 17 50920.50 -11393 29420 7057 1683 2 2 3 3 APR 18 50921.50 -11330 29725 5347 1683 2 2 3 3 APR 19 50922.50 -11325 29999 3628 1766 2 2 3 3 APR 20 50923.50 -11329 30261 1790 1916 1 2 3 3 APR 21 50924.50 -11335 30549 -199 2067 1 2 3 3 APR 22 50925.50 -11342 30824 -2358 2249 1 1 2 2 APR 23 50926.50 -11339 31122 -4715 2456 1 2 3 3 APR 24 50927.50 -11328 31401 -7237 2570 1 2 3 3 APR 25 50928.50 -11308 31604 -9853 2553 1 2 3 3 APR 26 50929.50 -11254 31794 -12331 2388 1 2 3 3 APR 27 50930.50 -11233 32024 -14592 2132 1 2 2 2 APR 28 50931.50 -11250 32249 -16631 1946 1 2 2 2 APR 29 50932.50 -11285 32482 -18500 1801 1 2 2 2 APR 30 50933.50 -11295 32708 -20291 1791 1 1 3 3 MAY 1 50934.50 -11306 32921 -22085 1806 1 2 2 2 MAY 2 50935.50 -11323 33106 -23875 1796 2 2 3 3 MAY 3 50936.50 -11353 33314 -25679 1815 2 2 3 3 MAY 4 50937.50 -11379 33514 -27447 1723 2 2 3 3 MAY 5 50938.50 -11401 33747 -29206 1793 1 2 3 3 MAY 6 50939.50 -11426 33988 -31030 1852 1 2 2 2 MAY 7 50940.50 -11414 34216 -32897 1878 1 2 3 3 MAY 8 50941.50 -11404 34432 -34726 1776 1 2 2 2 MAY 9 50942.50 -11385 34640 -36585 1788 1 2 2 2 MAY 10 50943.50 -11337 34842 -38330 1700 1 2 2 2 MAY 11 50944.50 -11285 35059 -40009 1656 1 2 2 2 MAY 12 50945.50 -11230 35259 -41601 1530 1 2 3 3 MAY 13 50946.50 -11174 35469 -43085 1440 1 2 2 2 MAY 14 50947.50 -11131 35683 -44505 1406 1 2 3 3 MAY 15 50948.50 -11070 35878 -45932 1454 2 2 3 3 MAY 16 50949.50 -11039 36053 -47439 1568 2 2 3 3 MAY 17 50950.50 -11020 36230 -49074 1710 1 2 3 3 MAY 18 50951.50 -11005 36400 -50865 1878 1 2 2 2 MAY 19 50952.50 -10958 36585 -52852 2095 1 1 3 3 MAY 20 50953.50 -10974 36803 -55007 2211 1 2 3 3 MAY 21 50954.50 -10965 37041 -57292 2348 1 2 3 3 MAY 22 50955.50 -10914 37316 -59660 2373 1 2 3 3 MAY 23 50956.50 -10873 37593 -62013 2319 1 1 3 3 7 -i - EOP(JPL) 96 P 03 Units : 0.00001" for x,y, 0.000001s for UT1 and D. Date Uncertainties 1998 MJD x y UT1-UTC D x y UT1-UTC D APR 1 50904.50 -10997 25332 28542 2066 2 3 10 10 APR 2 50905.50 -11047 25567 26569 1891 2 3 11 11 APR 3 50906.50 -11118 25817 24720 1814 3 3 11 11 APR 4 50907.50 -11215 26042 22901 1832 2 3 11 11 APR 5 50908.50 -11326 26243 21076 1824 2 3 11 11 APR 6 50909.50 -11383 26437 19262 1807 3 3 11 11 APR 7 50910.50 -11392 26688 17412 1892 3 3 11 11 APR 8 50911.50 -11398 26956 15492 1945 3 3 11 11 APR 9 50912.50 -11377 27223 13539 1958 3 3 11 11 APR 10 50913.50 -11359 27527 11594 1930 3 3 11 11 APR 11 50914.50 -11344 27831 9640 1972 3 3 11 11 APR 12 50915.50 -11371 28105 7685 1937 3 3 11 11 APR 13 50916.50 -11424 28365 5791 1847 3 3 11 11 APR 14 50917.50 -11462 28630 3968 1799 3 3 11 11 APR 15 50918.50 -11476 28899 2200 1738 3 3 11 11 APR 16 50919.50 -11468 29152 500 1668 3 3 11 11 APR 17 50920.50 -11404 29421 -1158 1655 2 3 10 10 APR 18 50921.50 -11343 29727 -2825 1688 2 3 10 10 APR 19 50922.50 -11336 30012 -4560 1793 2 3 10 10 APR 20 50923.50 -11335 30270 -6420 1933 3 3 10 10 APR 21 50924.50 -11337 30542 -8416 2064 2 3 10 10 APR 22 50925.50 -11358 30833 -10587 2276 2 3 10 10 APR 23 50926.50 -11341 31123 -12961 2464 2 3 10 10 APR 24 50927.50 -11345 31408 -15482 2560 2 3 10 10 APR 25 50928.50 -11321 31603 -18066 2591 2 2 9 9 APR 26 50929.50 -11267 31798 -20581 2426 2 2 9 9 APR 27 50930.50 -11235 32006 -22890 2187 2 2 9 9 APR 28 50931.50 -11256 32244 -24965 1966 2 2 9 9 APR 29 50932.50 -11315 32495 -26881 1874 2 2 9 9 APR 30 50933.50 -11296 32704 -28734 1843 2 2 9 9 MAY 1 50934.50 -11312 32918 -30575 1848 2 2 8 8 MAY 2 50935.50 -11319 33112 -32402 1812 2 2 8 8 MAY 3 50936.50 -11353 33316 -34219 1827 2 3 9 9 MAY 4 50937.50 -11378 33522 -36017 1771 2 3 9 9 MAY 5 50938.50 -11401 33757 -37798 1789 2 3 9 9 MAY 6 50939.50 -11418 34001 -39632 1874 2 2 8 8 MAY 7 50940.50 -11420 34215 -41514 1888 2 3 9 9 MAY 8 50941.50 -11415 34436 -43374 1826 3 3 9 9 MAY 9 50942.50 -11387 34634 -45205 1832 2 2 8 8 MAY 10 50943.50 -11336 34828 -46979 1715 2 2 8 8 MAY 11 50944.50 -11282 35044 -48678 1680 2 2 8 8 MAY 12 50945.50 -11248 35249 -50300 1566 3 3 9 9 MAY 13 50946.50 -11197 35477 -51822 1481 2 2 8 8 MAY 14 50947.50 -11153 35675 -53283 1447 2 2 8 8 MAY 15 50948.50 -11092 35872 -54740 1473 2 2 8 8 MAY 16 50949.50 -11048 36056 -56275 1604 2 2 8 8 7 -j - EOP(NOAA) 96 P 01 Units : 0.00001" for x,y, 0.000001s for UT1 and D. Date Uncertainties 1998 MJD x y UT1-UTC D x y UT1-UTC D APR 1 50904.50 -10974 25303 36796 2005 3 3 7 15 APR 2 50905.50 -11012 25588 34908 1861 3 3 7 14 APR 3 50906.50 -11083 25842 33114 1785 2 3 7 14 APR 4 50907.50 -11180 26048 31329 1802 3 3 8 15 APR 5 50908.50 -11316 26263 29608 1827 3 3 7 15 APR 6 50909.50 -11389 26408 27768 1875 3 3 7 15 APR 7 50910.50 -11398 26680 25927 1846 3 3 7 15 APR 8 50911.50 -11375 26972 24021 1862 3 3 7 15 APR 9 50912.50 -11384 27217 22058 1928 3 3 8 15 APR 10 50913.50 -11305 27542 20142 1855 3 3 7 15 APR 11 50914.50 -11319 27811 18168 1895 3 4 7 15 APR 12 50915.50 -11356 28104 15967 1922 3 3 8 15 APR 13 50916.50 -11427 28409 14114 1816 3 3 7 14 APR 14 50917.50 -11438 28676 12172 1772 3 3 7 15 APR 15 50918.50 -11451 28903 10399 1709 3 3 7 14 APR 16 50919.50 -11473 29160 8709 1630 3 3 7 15 APR 17 50920.50 -11426 29435 7014 1668 3 3 7 15 APR 18 50921.50 -11316 29741 5349 1675 3 4 7 14 APR 19 50922.50 -11362 29987 3608 1761 2 3 7 14 APR 20 50923.50 -11333 30258 1772 1865 2 3 7 14 APR 21 50924.50 -11405 30524 -205 2002 2 3 7 14 APR 22 50925.50 -11363 30850 -2392 2245 2 3 7 15 APR 23 50926.50 -11365 31147 -4736 2448 2 3 8 15 APR 24 50927.50 -11345 31463 -7174 2565 3 3 8 15 APR 25 50928.50 -11362 31655 -9601 2546 3 3 8 16 APR 26 50929.50 -11288 31853 -12415 2371 3 3 8 16 APR 27 50930.50 -11283 32061 -14737 2186 2 3 7 15 APR 28 50931.50 -11264 32290 -16844 1963 2 3 7 15 APR 29 50932.50 -11322 32563 -18801 1875 3 3 8 15 APR 30 50933.50 -11292 32780 -20578 1788 3 3 7 15 MAY 1 50934.50 -11331 32980 -22264 1787 3 3 8 15 MAY 2 50935.50 -11305 33099 -23896 1809 3 4 8 16 MAY 3 50936.50 -11382 33313 -25612 1732 3 3 8 16 MAY 4 50937.50 -11409 33533 -27395 1730 3 4 8 16 MAY 5 50938.50 -11425 33772 -29206 1737 3 4 8 16 MAY 6 50939.50 -11450 34005 -31081 1839 3 3 7 15 MAY 7 50940.50 -11473 34235 -32858 1761 3 3 8 15 MAY 8 50941.50 -11432 34471 -34680 1812 3 3 8 16 MAY 9 50942.50 -11403 34676 -36429 1778 3 3 8 15 MAY 10 50943.50 -11351 34874 -38331 1741 2 2 5 10 MAY 11 50944.50 -11286 35093 -39971 1622 2 2 5 10 MAY 12 50945.50 -11273 35309 -41503 1479 2 3 5 10 MAY 13 50946.50 -11184 35524 -42985 1423 2 2 5 9 MAY 14 50947.50 -11126 35741 -44401 1386 2 2 5 9 MAY 15 50948.50 -11081 35924 -45805 1406 2 2 5 9 MAY 16 50949.50 -11024 36092 -47283 1558 2 3 5 9 MAY 17 50950.50 -11020 36263 -49090 1680 2 2 5 9 MAY 18 50951.50 -11000 36445 -50814 1845 2 3 5 10 MAY 19 50952.50 -10954 36646 -52683 2063 2 2 5 10 MAY 20 50953.50 -10961 36870 -54642 2220 2 2 5 10 MAY 21 50954.50 -10947 37080 -56657 2274 2 2 5 10 MAY 22 50955.50 -10887 37362 -58780 2392 2 2 5 10 7 -k - EOP(SIO) 96 P 01 Units : 0.00001" for x,y, 0.000001s for UT1 and D. Date Uncertainties 1998 MJD x y UT1-UTC D x y UT1-UTC D APR 1 50904.50 -11001 25330 36791 2015 6 6 34 17 APR 2 50905.50 -11065 25582 34881 1854 6 6 41 17 APR 3 50906.50 -11140 25813 33040 1816 6 6 46 17 APR 4 50907.50 -11244 26031 31223 1809 6 8 52 18 APR 5 50908.50 -11311 26246 1782 6 8 18 APR 6 50909.50 -11361 26439 27598 1829 6 6 18 18 APR 7 50910.50 -11375 26669 25758 1862 6 6 29 18 APR 8 50911.50 -11373 26937 23841 1941 6 6 37 19 APR 9 50912.50 -11365 27209 21895 1951 6 6 45 19 APR 10 50913.50 -11349 27485 19935 1956 6 6 52 20 APR 11 50914.50 -11345 27758 17938 1981 8 9 59 20 APR 12 50915.50 -11392 28107 1971 8 9 20 APR 13 50916.50 -11441 28372 13936 1931 6 6 19 18 APR 14 50917.50 -11490 28635 12043 1852 6 6 29 18 APR 15 50918.50 -11508 28890 10217 1781 6 6 38 19 APR 16 50919.50 -11497 29149 8480 1703 6 6 45 18 APR 17 50920.50 -11455 29425 6796 1674 6 6 51 18 APR 18 50921.50 -11408 29708 5132 1677 8 8 57 19 APR 19 50922.50 -11352 30024 1784 6 8 18 APR 20 50923.50 -11349 30294 1786 1914 6 6 18 17 APR 21 50924.50 -11362 30563 -215 2098 6 6 27 17 APR 22 50925.50 -11366 30847 -2376 2258 6 6 34 17 APR 23 50926.50 -11361 31147 -4737 2431 6 6 41 18 APR 24 50927.50 -11347 31413 -7268 2553 6 6 46 17 APR 25 50928.50 -11326 31622 -9820 2508 8 8 52 18 APR 26 50929.50 -11284 31826 2365 6 8 17 APR 27 50930.50 -11258 32040 -14598 2171 6 6 17 17 APR 28 50931.50 -11267 32273 -16729 2033 6 6 26 16 APR 29 50932.50 -11305 32507 -18618 1826 6 6 34 17 APR 30 50933.50 -11326 32734 -20498 1862 6 6 39 16 MAY 1 50934.50 -11339 32937 -22324 1813 6 6 44 16 MAY 2 50935.50 -11354 33125 -24091 1764 6 8 49 17 MAY 3 50936.50 -11355 33349 1813 6 6 16 MAY 4 50937.50 -11380 33553 -27439 1750 4 5 17 17 MAY 5 50938.50 -11413 33786 -29221 1788 4 4 26 16 MAY 6 50939.50 -11428 34023 -31071 1868 4 5 33 16 MAY 7 50940.50 -11430 34252 -32937 1856 4 5 39 17 MAY 8 50941.50 -11408 34464 -34772 1812 4 5 44 15 MAY 9 50942.50 -11385 34649 -36569 1761 6 6 48 16 MAY 10 50943.50 -11337 34873 1734 5 6 16 MAY 11 50944.50 -11280 35077 -40038 1642 4 4 16 15 MAY 12 50945.50 -11233 35291 -41626 1539 4 4 24 15 MAY 13 50946.50 -11191 35504 -43129 1471 4 4 30 15 MAY 14 50947.50 -11139 35709 -44601 1465 4 4 36 15 MAY 15 50948.50 -11089 35900 -46023 1453 4 5 41 15 MAY 16 50949.50 -11048 36077 -47536 1572 6 6 45 16 7 -l - EOP(IGS) 95 P 02 Units : 0.00001" for x,y, 0.000001s for UT1 and D. Date Uncertainties 1998 MJD x y UT1-UTC D x y UT1-UTC D APR 1 50904.50 -10996 25337 36809 2011 6 6 21 7 APR 2 50905.50 -11046 25587 34892 1872 5 6 22 9 APR 3 50906.50 -11119 25822 33059 1805 7 5 22 6 APR 4 50907.50 -11213 26045 31244 1814 6 5 21 7 APR 5 50908.50 -11320 26257 29408 1842 5 8 20 15 APR 6 50909.50 -11382 26453 27579 1832 8 8 21 14 APR 7 50910.50 -11386 26692 25681 1878 5 6 20 10 APR 8 50911.50 -11387 26966 23739 1938 7 8 21 10 APR 9 50912.50 -11369 27235 21781 1961 8 9 24 8 APR 10 50913.50 -11347 27525 19831 1933 8 10 24 9 APR 11 50914.50 -11339 27821 17842 1972 6 9 23 6 APR 12 50915.50 -11370 28109 15903 1947 7 7 17 6 APR 13 50916.50 -11418 28378 14007 1871 7 6 13 14 APR 14 50917.50 -11460 28643 12152 1822 8 8 13 9 APR 15 50918.50 -11471 28895 10383 1748 8 8 12 8 APR 16 50919.50 -11462 29155 8692 1672 9 7 11 6 APR 17 50920.50 -11410 29431 7018 1673 9 5 13 11 APR 18 50921.50 -11352 29732 5350 1687 10 6 14 5 APR 19 50922.50 -11338 30011 3607 1781 5 5 22 3 APR 20 50923.50 -11337 30280 1760 1920 4 7 25 7 APR 21 50924.50 -11347 30553 -234 2067 9 4 31 11 APR 22 50925.50 -11353 30841 -2443 2267 5 6 40 4 APR 23 50926.50 -11346 31132 -4847 2461 4 6 46 6 APR 24 50927.50 -11338 31409 -7367 2568 5 9 52 5 APR 25 50928.50 -11319 31619 -9931 2559 7 7 52 13 APR 26 50929.50 -11267 31808 -12313 2390 6 6 26 13 APR 27 50930.50 -11242 32029 -14577 2168 5 5 18 9 APR 28 50931.50 -11255 32260 -16658 1972 3 5 21 12 APR 29 50932.50 -11301 32499 -18579 1839 6 8 22 11 APR 30 50933.50 -11306 32719 -20417 1821 5 8 26 9 MAY 1 50934.50 -11318 32925 -22185 1815 5 6 34 9 MAY 2 50935.50 -11328 33117 -23995 1805 5 4 35 11 MAY 3 50936.50 -11358 33328 -25705 1790 5 7 29 10 MAY 4 50937.50 -11384 33533 -27464 1747 6 7 20 7 MAY 5 50938.50 -11407 33768 -29279 1785 4 7 20 7 MAY 6 50939.50 -11428 34008 -31125 1850 6 6 19 4 MAY 7 50940.50 -11429 34234 -32967 1860 7 6 20 12 MAY 8 50941.50 -11412 34449 -34789 1815 3 6 16 8 MAY 9 50942.50 -11389 34646 -36593 1792 4 4 17 7 MAY 10 50943.50 -11338 34848 -38361 1723 3 6 27 7 MAY 11 50944.50 -11286 35059 -40040 1647 2 5 20 5 MAY 12 50945.50 -11241 35268 -41611 1537 7 8 21 11 MAY 13 50946.50 -11191 35486 -43099 1457 5 6 22 6 MAY 14 50947.50 -11144 35693 -44520 1417 7 6 20 9 MAY 15 50948.50 -11088 35884 -45935 1438 5 5 20 6 MAY 16 50949.50 -11047 36062 -47440 1564 4 5 17 3 7 -m - EOP(IGS) 96 P 02 Units : 0.00001" for x,y, 0.000001s for UT1 and D. Date Uncertainties 1998 MJD x y UT1-UTC D x y UT1-UTC D APR 1 50904.50 -10990 25348 36918 1972 7 11 39 21 APR 2 50905.50 -11046 25603 34990 1829 5 8 41 21 APR 3 50906.50 -11107 25829 33130 1826 11 10 41 7 APR 4 50907.50 -11193 26060 31314 1811 11 6 43 26 APR 5 50908.50 -11321 26284 29466 1856 6 12 45 14 APR 6 50909.50 -11384 26460 27616 1837 7 7 55 17 APR 7 50910.50 -11390 26680 25758 1879 7 10 56 14 APR 8 50911.50 -11391 26977 24471 1950 13 11 280 18 APR 9 50912.50 -11379 27240 21955 1961 6 12 380 8 APR 10 50913.50 -11336 27535 20012 1912 9 14 380 19 APR 11 50914.50 -11338 27840 18065 1943 13 8 380 14 APR 12 50915.50 -11337 28136 16136 1911 12 20 381 14 APR 13 50916.50 -11410 28372 14093 1847 13 13 38 14 APR 14 50917.50 -11451 28657 12243 1813 7 8 38 10 APR 15 50918.50 -11455 28901 10355 1774 6 16 31 18 APR 16 50919.50 -11454 29161 8657 1683 7 12 31 7 APR 17 50920.50 -11414 29427 6993 1667 6 9 31 8 APR 18 50921.50 -11344 29728 5318 1692 9 11 31 7 APR 19 50922.50 -11333 30009 3580 1773 6 9 32 8 APR 20 50923.50 -11336 30288 1724 1921 6 8 23 6 APR 21 50924.50 -11349 30552 -283 2094 9 5 24 12 APR 22 50925.50 -11357 30843 -2468 2277 6 7 16 2 APR 23 50926.50 -11345 31136 -4834 2446 4 5 16 8 APR 24 50927.50 -11342 31421 -7333 2550 5 4 18 10 APR 25 50928.50 -11323 31626 -9895 2562 7 8 19 7 APR 26 50929.50 -11291 31810 -12360 2376 6 9 22 21 APR 27 50930.50 -11242 32022 -14665 2191 4 8 25 5 APR 28 50931.50 -11253 32256 -16737 1964 6 12 25 7 APR 29 50932.50 -11315 32499 -18660 1810 7 6 54 9 APR 30 50933.50 -11305 32726 -20487 1798 9 6 54 16 MAY 1 50934.50 -11322 32935 -22280 1799 5 8 55 10 MAY 2 50935.50 -11330 33128 -24096 1835 15 15 55 15 MAY 3 50936.50 -11363 33333 -25901 1829 5 12 55 9 MAY 4 50937.50 -11382 33541 -27612 1781 9 8 44 17 MAY 5 50938.50 -11413 33771 -29421 1796 5 12 44 8 MAY 6 50939.50 -11430 33995 -31229 1859 4 7 39 10 MAY 7 50940.50 -11450 34242 -33084 1860 7 7 40 13 MAY 8 50941.50 -11417 34439 -34937 1842 11 6 40 6 MAY 9 50942.50 -11405 34653 -36750 1799 4 8 41 9 MAY 10 50943.50 -11332 34843 -38492 1719 6 8 41 8 MAY 11 50944.50 -11278 35061 -40086 1669 7 9 31 11 MAY 12 50945.50 -11241 35266 -41669 1511 11 8 33 14 MAY 13 50946.50 -11198 35488 -43122 1477 7 7 22 6 MAY 14 50947.50 -11153 35699 -44562 1426 9 5 23 9 MAY 15 50948.50 -11093 35890 -45988 1435 5 7 24 8 MAY 16 50949.50 -11048 36061 -47478 1532 7 8 25 14 MAY 17 50950.50 -11036 36249 -49108 1705 6 7 27 10 MAY 18 50951.50 -10997 36423 -50863 1891 16 5 24 13 MAY 19 50952.50 -10969 36602 -52844 2079 8 9 25 9 MAY 20 50953.50 -10975 36807 -54986 2227 8 9 23 5 MAY 21 50954.50 -10964 37050 -57279 2331 8 9 24 7 MAY 22 50955.50 -10926 37305 -59636 2361 7 4 25 12 MAY 27 50960.50 -10709 38554 -69770 1555 6 5 40 10 7 -n - EOP(IERS) 97 P 01 Units : 0.00001" for x,y, 0.000001s for UT1 and D. Date Uncertainties 1998 MJD x y UT1-UTC D x y UT1-UTC D APR 1 50904.50 -11009 25336 36793 1994 4 6 18 9 APR 2 50905.50 -11058 25581 34855 1869 7 6 17 16 APR 3 50906.50 -11131 25818 33012 1801 8 6 17 7 APR 4 50907.50 -11226 26043 31190 1808 9 7 21 15 APR 5 50908.50 -11335 26251 29354 1837 7 4 33 14 APR 6 50909.50 -11396 26451 27536 1830 13 14 33 30 APR 7 50910.50 -11404 26689 25689 1860 5 11 19 14 APR 8 50911.50 -11405 26962 23754 1942 4 14 16 13 APR 9 50912.50 -11385 27230 21796 1955 10 8 17 9 APR 10 50913.50 -11366 27527 19865 1918 5 15 18 14 APR 11 50914.50 -11358 27825 17876 1963 6 10 14 12 APR 12 50915.50 -11382 28103 15910 1929 5 6 21 8 APR 13 50916.50 -11431 28377 14016 1850 8 9 24 19 APR 14 50917.50 -11474 28636 12161 1809 9 7 16 14 APR 15 50918.50 -11484 28901 10388 1730 4 8 10 8 APR 16 50919.50 -11471 29158 8696 1664 6 6 25 6 APR 17 50920.50 -11417 29432 7018 1668 6 6 25 24 APR 18 50921.50 -11360 29727 5347 1687 15 8 9 8 APR 19 50922.50 -11346 30005 3616 1774 10 13 14 4 APR 20 50923.50 -11349 30271 1771 1914 9 13 18 13 APR 21 50924.50 -11357 30545 -217 2075 10 12 15 12 APR 22 50925.50 -11364 30839 -2390 2263 5 3 13 9 APR 23 50926.50 -11356 31125 -4779 2458 8 7 17 9 APR 24 50927.50 -11352 31400 -7320 2566 4 11 23 15 APR 25 50928.50 -11330 31609 -9895 2550 3 10 24 18 APR 26 50929.50 -11279 31797 -12355 2389 6 14 19 16 APR 27 50930.50 -11251 32016 -14602 2154 11 10 14 11 APR 28 50931.50 -11272 32251 -16649 1951 7 10 12 9 APR 29 50932.50 -11313 32488 -18545 1824 11 11 11 8 APR 30 50933.50 -11321 32708 -20395 1807 11 6 17 8 MAY 1 50934.50 -11328 32915 -22216 1806 9 5 24 15 MAY 2 50935.50 -11338 33110 -24016 1807 13 9 24 19 MAY 3 50936.50 -11369 33317 -25774 1777 5 9 18 14 MAY 4 50937.50 -11398 33531 -27504 1752 7 6 15 11 MAY 5 50938.50 -11420 33764 -29271 1787 7 5 19 10 MAY 6 50939.50 -11441 34002 -31107 1849 7 10 26 16 MAY 7 50940.50 -11442 34222 -32970 1867 7 12 28 21 MAY 8 50941.50 -11431 34442 -34793 1816 4 7 20 18 MAY 9 50942.50 -11404 34636 -36603 1794 5 8 11 8 MAY 10 50943.50 -11356 34836 -38349 1722 5 6 19 8 MAY 11 50944.50 -11304 35048 -40027 1651 5 4 20 17 MAY 12 50945.50 -11257 35260 -41601 1550 8 13 11 10 MAY 13 50946.50 -11208 35473 -43073 1457 8 10 8 5 MAY 14 50947.50 -11156 35679 -44484 1414 9 11 7 6 MAY 15 50948.50 -11106 35872 -45902 1442 11 9 16 4 MAY 16 50949.50 -11067 36055 -47418 1565 7 7 17 15 MAY 17 50950.50 -11039 36224 -49058 1712 3 3 9 9 MAY 18 50951.50 -11018 36395 -50864 1892 6 6 9 3 MAY 19 50952.50 -11004 36585 -52857 2080 11 13 11 9 MAY 20 50953.50 -10992 36801 -55029 2246 4 5 7 6 MAY 21 50954.50 -10973 37045 -57350 2359 8 7 5 3 MAY 22 50955.50 -10937 37309 -59750 2392 4 3 8 4 MAY 23 50956.50 -10884 37578 -62133 2326 3 3 19 7 MAY 24 50957.50 -10819 37836 -64400 2171 14 3 25 18 MAY 25 50958.50 -10756 38078 -66469 1958 16 3 21 18 MAY 26 50959.50 -10711 38307 -68317 1745 8 10 16 10 MAY 27 50960.50 -10691 38525 -69961 1567 12 10 12 12 7-o - Satellite Laser Ranging : LAGEOS -EOP(CGS) 97 L 02 Units : 0.00001" for x,y, 0.000001s for UT1. Date Uncertainties 1998 MJD x y UT1-UTC x y UT1-UTC APR 1 50904.00 -11114 25291 37260 21 21 360 APR 2 50905.00 -10850 25340 35043 31 28 360 APR 3 50906.00 -11013 25732 33255 26 25 360 APR 4 50907.00 -11045 25837 31472 19 20 360 APR 5 50908.00 -11379 26271 29738 27 27 360 APR 6 50909.00 -11387 26385 27807 26 24 360 APR 7 50910.00 -11357 26521 26067 20 25 360 APR 8 50911.00 -11434 26879 24300 41 30 360 APR 9 50912.00 -11380 27058 22303 25 21 360 APR 10 50913.00 -11260 27502 20460 49 32 360 APR 11 50914.00 -11316 27616 18519 23 22 360 APR 12 50915.00 -11473 27955 16644 22 16 360 APR 13 50916.00 -11495 28251 14580 29 26 360 APR 14 50917.00 -11512 28498 12813 25 29 360 APR 15 50918.00 -11587 28844 10872 18 19 360 APR 16 50919.00 -11587 29077 9106 23 24 360 APR 17 50920.00 -11504 29269 7490 18 18 360 APR 18 50921.00 -11315 29575 5793 23 16 360 APR 19 50922.00 -11315 29864 4108 20 15 360 APR 20 50923.00 -11390 30189 2253 17 16 360 APR 21 50924.00 -11357 30404 304 17 15 360 APR 22 50925.00 -11333 30679 -1672 22 18 360 APR 23 50926.00 -11293 30993 -3995 21 14 360 APR 24 50927.00 -11376 31200 -6298 18 16 360 APR 25 50928.00 -11350 31554 -8889 27 25 360 APR 26 50929.00 -11504 31738 -11491 20 16 360 APR 27 50930.00 -11176 32161 -13867 32 42 361 APR 28 50931.00 -11258 32138 -15640 12 9 10 APR 29 50932.00 -11256 32391 -17562 13 10 11 APR 30 50933.00 -11358 32617 -19345 13 10 11 MAY 1 50934.00 -11274 32860 -21133 12 9 10 MAY 2 50935.00 -11332 33062 -22956 16 10 12 MAY 3 50936.00 -11269 33171 -24771 14 12 13 MAY 4 50937.00 -11318 33470 -26593 20 16 15 MAY 5 50938.00 -11470 33678 -28314 45 21 24 MAY 6 50939.00 -11429 33873 -30065 15 14 15 MAY 7 50940.00 -11413 34020 -31937 24 18 21 MAY 8 50941.00 -11418 34285 -33751 12 20 19 MAY 9 50942.00 -11409 34571 -35522 13 15 15 MAY 10 50943.00 -11361 34823 -37360 14 14 14 MAY 11 50944.00 -11289 34907 -38916 11 13 13 MAY 12 50945.00 -11219 35222 -40561 13 13 12 MAY 13 50946.00 -11195 35449 -42081 14 16 14 MAY 14 50947.00 -11198 35655 -43510 12 10 12 MAY 15 50948.00 -11085 35803 -44867 13 11 11 MAY 16 50949.00 -11007 36034 -46320 11 9 11 MAY 17 50950.00 -11013 36189 -47853 13 11 12 MAY 18 50951.00 -10964 36387 -49557 14 10 12 MAY 19 50952.00 -10936 36553 -51498 12 12 13 MAY 20 50953.00 -10944 36745 -53561 10 9 10 MAY 21 50954.00 -10994 36932 -55770 13 10 11 MAY 22 50955.00 -10958 37142 -58118 13 10 11 MAY 23 50956.00 -10849 37411 -60467 14 9 11 MAY 24 50957.00 -10844 37585 -62778 23 12 15 MAY 25 50958.00 -10279 37814 -64761 39 18 20 7-p - Satellite Laser Ranging : LAGEOS -EOP(CSR) 95 L 01 Units : 0.00001" for x,y, 0.000001s for UT1. Date Uncertainties 1998 MJD x y UT1-UTC x y UT1-UTC APR 4 50907.19 -11370 25826 31896 42 38 31 APR 6 50909.89 -11548 26368 26860 36 40 31 APR 10 50913.05 -11488 27233 20809 28 28 23 APR 12 50915.80 -11525 28018 15401 36 33 35 APR 16 50919.10 -11613 28897 9448 30 35 27 APR 19 50922.43 -11436 29843 3893 24 23 19 APR 21 50924.94 -11518 30560 -1106 27 22 20 APR 24 50927.92 -11472 31336 -8396 30 34 24 APR 28 50931.21 -11381 32034 -16132 26 24 24 MAY 1 50934.13 -11459 32712 -21416 36 26 24 MAY 3 50936.64 -11524 33234 -25891 45 44 35 MAY 7 50940.15 -11564 34001 -32219 44 41 46 MAY 10 50943.14 -11437 34608 -37552 33 36 32 MAY 12 50945.82 -11322 35224 -41959 31 30 28 MAY 16 50949.06 -11152 35880 -46685 26 25 88 MAY 19 50952.10 -11100 36450 -52067 24 23 177 MAY 22 50955.06 -11039 37104 -58656 31 28 265 MAY 24 50957.57 -10956 37761 -64499 77 60 343 7-q - Satellite Laser Ranging : LAGEOS -EOP(DUT) 98 L 01 Units : 0.00001" for x,y, 0.000001s for UT1. Date Uncertainties 1998 MJD x y x y APR 1 50904.00 -10920 25301 11 9 APR 4 50907.00 -11150 26007 16 19 APR 7 50910.00 -11329 26657 13 12 APR 10 50913.00 -11379 27290 14 14 APR 13 50916.00 -11376 28249 17 14 APR 16 50919.00 -11444 29114 13 13 APR 19 50922.00 -11293 29901 14 11 APR 22 50925.00 -11317 30724 10 8 APR 25 50928.00 -11234 31540 13 14 APR 28 50931.00 -11189 32181 12 10 MAY 1 50934.00 -11295 32890 12 10 MAY 4 50937.00 -11267 33512 17 14 MAY 7 50940.00 -11340 34196 14 15 MAY 10 50943.00 -11285 34791 12 14 MAY 13 50946.00 -11107 35470 13 11 MAY 16 50949.00 -11049 35990 13 15 MAY 19 50952.00 -10926 36601 10 9 MAY 22 50955.00 -10913 37170 15 13 7-r - Satellite Laser Ranging : LAGEOS -EOP(IAA) 98 L 02 Units : 0.00001" for x,y, 0.000001s for UT1.and D. Date Uncertainties 1998 MJD x y UT1-UTC D x y UT1-UTC D APR 1 50904.00 -10999 25204 37783 2074 4 4 1 1 APR 2 50905.00 -11057 25465 35782 1940 4 4 2 2 APR 3 50906.00 -11115 25704 33898 1842 4 4 2 2 APR 4 50907.00 -11204 25946 32092 1787 4 4 2 2 APR 5 50908.00 -11305 26172 30315 1779 4 3 2 2 APR 6 50909.00 -11381 26367 28519 1822 4 3 2 2 APR 7 50910.00 -11406 26564 26656 1910 4 3 3 3 APR 8 50911.00 -11406 26806 24715 1978 4 3 2 2 APR 9 50912.00 -11390 27087 22750 1947 3 3 2 2 APR 10 50913.00 -11388 27371 20801 1950 4 3 2 2 APR 11 50914.00 -11375 27672 18849 1955 3 3 2 2 APR 12 50915.00 -11402 27945 16898 1946 3 3 2 2 APR 13 50916.00 -11453 28214 14968 1916 4 3 2 2 APR 14 50917.00 -11492 28492 13079 1864 4 3 2 2 APR 15 50918.00 -11499 28758 11259 1781 4 3 2 2 APR 16 50919.00 -11485 29010 9522 1697 4 3 2 2 APR 17 50920.00 -11448 29282 7848 1658 3 3 2 2 APR 18 50921.00 -11391 29581 6185 1678 3 2 2 2 APR 19 50922.00 -11345 29870 4475 1756 4 3 2 2 APR 20 50923.00 -11348 30139 2674 1859 3 2 1 1 APR 21 50924.00 -11360 30413 741 2018 3 2 1 1 APR 22 50925.00 -11363 30698 -1367 2201 3 2 1 1 APR 23 50926.00 -11348 30977 -3660 2380 3 3 2 2 APR 24 50927.00 -11356 31246 -6117 2523 4 3 2 2 APR 25 50928.00 -11353 31495 -8668 2565 4 3 2 2 APR 26 50929.00 -11315 31702 -11190 2465 4 3 2 2 APR 27 50930.00 -11280 31903 -13566 2278 4 3 2 2 APR 28 50931.00 -11293 32131 -15743 2075 4 3 2 2 APR 29 50932.00 -11317 32364 -17730 1907 4 3 2 2 APR 30 50933.00 -11318 32599 -19583 1814 3 2 2 2 MAY 1 50934.00 -11340 32821 -21371 1781 3 2 2 2 MAY 2 50935.00 -11339 33025 -23150 1794 4 3 2 2 MAY 3 50936.00 -11341 33229 -24929 1778 4 4 3 3 MAY 4 50937.00 -11384 33426 -26703 1780 6 4 3 3 MAY 5 50938.00 -11397 33645 -28478 1777 5 4 2 2 MAY 6 50939.00 -11414 33865 -30261 1794 5 4 2 2 MAY 7 50940.00 -11434 34086 -32061 1808 7 7 4 4 MAY 8 50941.00 -11449 34326 -33876 1825 5 5 3 3 MAY 9 50942.00 -11403 34537 -35688 1800 6 6 3 3 MAY 10 50943.00 -11350 34731 -37458 1745 4 4 2 2 MAY 11 50944.00 -11308 34940 -39158 1661 4 4 3 3 MAY 12 50945.00 -11262 35162 -40773 1577 4 4 3 3 MAY 13 50946.00 -11208 35374 -42299 1484 4 4 2 2 MAY 14 50947.00 -11164 35565 -43744 1415 5 4 3 3 MAY 15 50948.00 -11123 35771 -45156 1415 4 3 3 3 MAY 16 50949.00 -11073 35974 -46614 1488 4 3 3 3 MAY 17 50950.00 -11030 36155 -48162 1625 4 4 3 3 MAY 18 50951.00 -11016 36305 -49876 1820 4 4 3 3 MAY 19 50952.00 -11001 36518 -51779 1998 4 4 3 3 MAY 20 50953.00 -10984 36720 -53859 2164 4 3 3 3 MAY 21 50954.00 -10969 36947 -56096 2306 4 3 3 3 MAY 22 50955.00 -10973 37177 -58450 2392 4 3 3 3 MAY 23 50956.00 -10932 37445 -60829 2357 4 2 2 2 MAY 24 50957.00 -10883 37714 -63129 2236 4 3 2 2 MAY 25 50958.00 -10819 37971 -65272 2049 5 4 3 3 MAY 26 50959.00 -10757 38213 -67217 1846 7 6 5 5 MAY 27 50960.00 -10611 38587 -69157 2046 17 13 17 17 7-s - Satellite Laser Ranging : LAGEOS -EOP(MCC) 97 L 01 Units : 0.00001" for x,y, 0.000001s for UT1. Date Uncertainties 1998 MJD x y D x y D APR 1 50904.00 -11009 25224 2090 9 7 10 APR 4 50907.00 -11231 25957 1870 11 11 10 APR 7 50910.00 -11375 26629 1860 8 7 10 APR 10 50913.00 -11382 27384 1930 6 6 10 APR 13 50916.00 -11374 28249 1870 4 4 10 APR 16 50919.00 -11460 28999 1710 6 5 10 APR 19 50922.00 -11364 29859 1780 5 3 10 APR 22 50925.00 -11360 30691 2200 4 4 10 APR 25 50928.00 -11345 31525 2530 5 4 10 APR 28 50931.00 -11262 32105 2060 6 5 10 MAY 1 50934.00 -11338 32818 1840 4 3 10 MAY 4 50937.00 -11370 33430 1780 6 4 10 MAY 7 50940.00 -11445 34109 1810 5 8 10 MAY 10 50943.00 -11372 34774 1720 4 5 10 MAY 13 50946.00 -11235 35401 1500 6 5 10 MAY 16 50949.00 -11072 35973 1500 5 4 10 MAY 19 50952.00 -10987 36535 2000 5 5 10 MAY 22 50955.00 -10946 37210 2340 7 6 10