BULLETIN B 195 4 May 2004 ! Contents are described in the Explanatory Supplement available at http://hpiers.obspm.fr/eop-pc/ 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 2004 " " s s 0.001" 0.001" (0h UTC) Final Bulletin B values. MAR 5 53069 -.11724 .24881 -.418957 -32.418957 -53.1 -3.2 MAR 10 53074 -.12291 .26000 -.420584 -32.420584 -54.0 -2.8 MAR 15 53079 -.12683 .27061 -.422366 -32.422366 -53.5 -3.1 MAR 20 53084 -.13165 .28188 -.424484 -32.424484 -52.8 -3.4 MAR 25 53089 -.13283 .29833 -.428585 -32.428585 -53.0 -3.4 MAR 30 53094 -.13868 .31471 -.433487 -32.433487 -52.0 -4.1 APR 4 53099 -.14085 .32862 -.437859 -32.437859 -51.6 -4.4 Preliminary extension, to be updated weekly in Bulletin A and monthly in Bulletin B. APR 9 53104 -.13972 .34246 -.442466 -32.442466 -53.1 -4.2 APR 14 53109 -.13900 .35796 -.446354 -32.446354 -51.4 -4.6 APR 19 53114 -.13344 .37369 -.449746 -32.449746 -51.2 -3.6 APR 24 53119 -.13269 .38722 -.452243 -32.452243 -50.7 -5.1 APR 29 53124 -.12489 .39800 -.454049 -32.454049 -49.6 -4.5 MAY 4 53129 -.11734 .41236 -.456181 -32.456181 -49.2 -4.5 MAY 9 53134 -.10981 .42507 -.457684 -32.457684 -50.2 -5.0 MAY 14 53139 -.10145 .43733 -.459179 -32.459179 -48.8 -4.9 MAY 19 53144 -.09212 .44919 -.460560 -32.460560 -50.1 -4.5 MAY 24 53149 -.08190 .46039 -.461643 -32.461643 -49.7 -5.4 MAY 29 53154 -.07088 .47084 -.462376 -32.462376 -49.5 -5.0 JUN 3 53159 -.05909 .48048 -.462727 -32.462727 -52.1 -4.7 JUN 8 53164 -.04662 .48926 -.462681 -32.462681 -51.3 -5.1 JUN 13 53169 -.03354 .49712 -.462299 -32.462299 -52.4 -4.5 JUN 18 53174 -.01993 .50401 -.461575 -32.461575 -53.3 -4.9 JUN 23 53179 -.00587 .50990 -.460560 -32.460560 -52.7 -5.1 JUN 28 53184 .00855 .51475 -.459293 -32.459293 -54.4 -4.6 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. IERS, B 195 (2) 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 2002 IERS Annual Report. 2004 MJD x y UT1-UTC UT1-UT1R D dPsi dEpsilon (0 h UTC) " " s ms ms 0.001" 0.001" MAR 5 53069 -.11724 .24881 -.417344 1.613 .258 -53.1 -3.2 MAR 6 53070 -.11892 .25142 -.417725 1.542 .488 -53.0 -3.2 MAR 7 53071 -.12026 .25403 -.418315 1.226 .727 -52.9 -3.0 MAR 8 53072 -.12152 .25615 -.419152 .718 .921 -53.0 -2.8 MAR 9 53073 -.12227 .25800 -.420117 .120 .958 -53.3 -2.7 MAR 10 53074 -.12291 .26000 -.421024 -.440 .838 -54.0 -2.8 MAR 11 53075 -.12369 .26209 -.421756 -.838 .596 -54.4 -2.9 MAR 12 53076 -.12439 .26408 -.422200 -.996 .350 -54.6 -3.0 MAR 13 53077 -.12515 .26619 -.422463 -.896 .182 -54.5 -3.1 MAR 14 53078 -.12596 .26847 -.422591 -.588 .018 -54.1 -3.1 MAR 15 53079 -.12683 .27061 -.422539 -.173 -.088 -53.5 -3.1 MAR 16 53080 -.12802 .27274 -.422457 .227 .000 -52.9 -3.1 MAR 17 53081 -.12913 .27478 -.422572 .498 .220 -52.6 -3.2 MAR 18 53082 -.13003 .27703 -.422913 .567 .463 -52.6 -3.3 MAR 19 53083 -.13101 .27947 -.423493 .418 .751 -52.7 -3.4 MAR 20 53084 -.13165 .28188 -.424393 .091 1.029 -52.8 -3.4 MAR 21 53085 -.13178 .28463 -.425520 -.332 1.134 -53.0 -3.3 MAR 22 53086 -.13185 .28780 -.426628 -.751 1.113 -53.1 -3.2 MAR 23 53087 -.13181 .29126 -.427718 -1.078 1.111 -53.1 -3.2 MAR 24 53088 -.13202 .29487 -.428833 -1.247 1.048 -53.1 -3.2 MAR 25 53089 -.13283 .29833 -.429808 -1.223 .885 -53.0 -3.4 MAR 26 53090 -.13401 .30177 -.430606 -1.005 .719 -53.0 -3.6 MAR 27 53091 -.13551 .30520 -.431259 -.618 .555 -52.8 -3.7 MAR 28 53092 -.13688 .30833 -.431736 -.112 .416 -52.6 -3.9 MAR 29 53093 -.13784 .31148 -.432114 .447 .370 -52.4 -4.0 MAR 30 53094 -.13868 .31471 -.432502 .984 .424 -52.0 -4.1 MAR 31 53095 -.13944 .31774 -.432988 1.422 .550 -51.7 -4.3 APR 1 53096 -.14015 .32059 -.433625 1.688 .738 -51.4 -4.5 APR 2 53097 -.14065 .32329 -.434479 1.722 .961 -51.3 -4.6 APR 3 53098 -.14073 .32597 -.435549 1.497 1.181 -51.4 -4.6 APR 4 53099 -.14085 .32862 -.436824 1.035 1.423 -51.6 -4.4 APR 5 53100 -.14110 .33094 -.438358 .417 1.595 -52.0 -4.2 APR 6 53101 -.14073 .33326 -.439965 -.226 1.555 -52.5 -4.0 APR 7 53102 -.14007 .33614 -.441422 -.750 1.345 -52.8 -4.0 APR 8 53103 -.13986 .33930 -.442626 -1.041 1.049 -53.1 -4.1 APR 9 53104 -.13972 .34246 -.443516 -1.050 .768 -53.1 -4.2 APR 10 53105 -.13916 .34573 -.444186 -.812 .563 -52.9 -4.3 APR 11 53106 -.13870 .34912 -.444683 -.424 .386 -52.6 -4.4 APR 12 53107 -.13882 .35231 -.445001 -.015 .316 -52.2 -4.5 APR 13 53108 -.13904 .35517 -.445350 .297 .452 -51.7 -4.6 APR 14 53109 -.13900 .35796 -.445924 .430 .701 -51.4 -4.6 APR 15 53110 -.13850 .36074 -.446752 .356 .891 -51.2 -4.6 APR 16 53111 -.13729 .36365 -.447690 .100 1.000 -51.2 -4.4 APR 17 53112 -.13589 .36700 -.448724 -.274 1.082 -51.2 -4.1 APR 18 53113 -.13465 .37038 -.449823 -.679 1.037 -51.2 -3.8 APR 19 53114 -.13344 .37369 -.450771 -1.025 .871 -51.2 -3.6 APR 20 53115 -.13272 .37718 -.451544 -1.239 .682 -51.1 -3.7 APR 21 53116 -.13284 .38029 -.452125 -1.273 .462 -51.1 -4.0 APR 22 53117 -.13310 .38274 -.452468 -1.111 .223 -51.0 -4.4 APR 23 53118 -.13283 .38514 -.452581 -.769 .022 -50.9 -4.8 APR 24 53119 -.13269 .38722 -.452530 -.287 -.123 -50.7 -5.1 APR 25 53120 -.13200 .38903 -.452358 .272 -.218 -50.5 -5.2 APR 26 53121 -.13050 .39085 -.452118 .836 -.211 -50.4 -5.1 APR 27 53122 -.12846 .39283 -.451961 1.329 -.081 -50.1 -4.9 APR 28 53123 -.12678 .39506 -.451981 1.682 .120 -49.8 -4.7 APR 29 53124 -.12489 .39800 -.452217 1.832 .331 -49.6 -4.5 IERS, B 195 (3) 3 - NORMAL VALUES OF THE EARTH ORIENTATION PARAMETERS AT FIVE-DAY INTERVALS (IERS evaluation). Raw normal values Uncertainties 2004 MJD x y UT1-UTC dPsi dEps x y UT1 dPsi dEps (0 h UTC) " " s 0.001" 0.001" 0.0001s 0.001" MAR 5 53069 -.11726 .24881 -.417347 -53.32 -3.29 .01 .01 .03 .10 .04 MAR 10 53074 -.12290 .26001 -.421026 -54.03 -2.81 .02 .02 .02 .04 .02 MAR 15 53079 -.12684 .27061 -.422539 -53.31 -3.05 .01 .01 .02 .06 .03 MAR 20 53084 -.13165 .28188 -.424390 -53.00 -3.44 .02 .02 .05 .15 .07 MAR 25 53089 -.13283 .29832 -.429810 -53.05 -3.39 .02 .02 .02 .06 .03 MAR 30 53094 -.13868 .31471 -.432500 -52.06 -4.12 .01 .01 .01 .05 .02 APR 4 53099 -.14086 .32862 -.436824 -51.72 -4.41 .02 .02 .02 .07 .03 APR 9 53104 -.13972 .34246 -.443516 -53.09 -4.22 .01 .02 .02 .07 .03 APR 14 53109 -.13901 .35796 -.445924 -51.39 -4.57 .01 .02 .03 .05 .02 APR 19 53114 -.13343 .37369 -.450772 -51.17 -3.61 .02 .02 .04 .11 .05 APR 24 53119 -.13269 .38722 -.452531 - - .02 .02 .05 - - APR 29 53124 -.12489 .39800 -.452211 - - .01 .02 .07 - - 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 2004 MJD s (microrad/s) MAR 5 53069 .00032 72.921 15120 MAR 10 53074 .00035 15118 MAR 15 53079 .00035 15118 MAR 20 53084 .00064 15092 MAR 25 53089 .00101 15061 MAR 30 53094 .00093 15068 APR 4 53099 .00087 15073 5 - INFORMATION ON TIME SCALES No leap second was introduced in UTC on 31 December 2003. No leap second will be introduced in UTC on 30 June 2004. 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 IERS, B 195 (4) 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(AUS) 1 R 01 .34 .38 .20 - .08 .03 14 53069.27 to 53115.23 .12 .15 .12 - .19 .07 EOP(BKG) 3 R 04 .10 .09 .04 - .17 .07 15 53069.27 to 53115.23 .28 .17 .08 - .19 .09 EOP(BKG) 3 R 02 - - .11 - - - 32 53069.81 to 53118.81 - - .16 - - - EOP(GSFC) 4 R 02 .23 .14 .12 - .34 .14 16 53069.27 to 53115.23 .15 .13 .05 - .14 .07 EOP(GSFC) 4 R 01 - - .12 - - - 33 53069.81 to 53122.79 - - .19 - - - EOP(IAA) 3 R 04 .07 .07 .03 - - - 15 53069.27 to 53115.23 .20 .13 .08 - - - EOP(IAA) 3 R 03 - - .10 - - - 35 53069.81 to 53122.79 - - .11 - - - EOP(SPBU) 3 R 03 .33 .37 .20 - .09 .04 6 53069.27 to 53090.27 .25 .26 .10 - .20 .06 EOP(SPBU) 2 R 01 - - .10 - - - 17 53069.81 to 53101.79 - - .12 - - - EOP(MAO) 3 R 01 .09 .09 .04 - - - 13 53069.26 to 53108.25 .35 .12 .08 - - - EOP(USNO) 3 R 04 .09 .08 .04 - .19 .08 14 53069.27 to 53115.23 .16 .11 .07 - .20 .10 EOP(IVS) 0 R 01 .06 .06 .02 - .04 .03 13 53069.00 to 53111.00 .26 .07 .04 - .15 .06 GPS EOP(CODE) 98 P 01 .01 .01 - .28 - - 55 53069.50 to 53123.50 .06 .06 - .26 - - EOP(EMR) 96 P 03 .03 .03 - .04 - - 55 53069.50 to 53123.50 .06 .10 - .45 - - EOP(ESOC) 96 P 01 .01 .02 - .03 - - 55 53069.50 to 53123.50 .23 .09 - .38 - - EOP(GFZ) 96 P 02 .01 .01 - .01 - - 55 53069.50 to 53123.50 .08 .06 - .29 - - EOP(IAA) 1 P 01 .03 .03 - .06 - - 55 53069.50 to 53123.50 .13 .17 - .47 - - EOP(JPL) 96 P 03 .02 .03 - .15 - - 55 53069.50 to 53123.50 .04 .07 - .62 - - EOP(NOAA) 96 P 01 .01 .01 - .02 - - 45 53069.50 to 53113.50 .20 .27 - .65 - - EOP(SIO) 96 P 01 .05 .05 - .14 - - 55 53069.50 to 53123.50 .08 .09 - .37 - - EOP(IGS F)95 P 02 .02 .03 .07 .05 - - 37 53069.50 to 53105.50 .05 .06 .28 .27 - - EOP(IGS R)96 P 02 .03 .03 .19 .06 - - 55 53069.50 to 53123.50 .09 .05 .71 .25 - - EOP(IERS) 97 P 01 .03 .04 .20 .13 - - 55 53069.50 to 53123.50 .02 .02 .44 .20 - - SLR EOP(ASI) 3 L 02 .08 .08 - .22 - - 54 53069.50 to 53122.50 .35 .27 - 1.12 - - EOP(CSR) 95 L 01 .44 .48 .35 - - - 12 53070.07 to 53101.80 .59 .55 1.65 - - - EOP(IAA) 2 L 01 .04 .05 .03 .03 - - 56 53069.00 to 53124.00 .17 .15 .35 .18 - - EOP(MCC) 97 L 01 .06 .07 - .10 - - 42 53069.00 to 53117.00 .16 .18 - .80 - - Bulletin A EOP(NEOS) 97 C 01 .07 .06 .07 - - - 56 53069.00 to 53124.00 .09 .15 .28 - - -