BULLETIN B 185 (IAU 2000) 2 July 2003 ============================================================================== Following IAU Conventions 2000, IERS provides new products dX, dY, celestial pole offsets with respect to the new IAU2000A Precession-Nutation theory. The present Bulletin B version includes the celestial pole offsets dX, dY: dX = X_obs - X_IAU2000A and dY = Y_obs - Y_IAU2000A where X_obs, Y_obs are the observed coordinates of the Celestial Intermediate Pole (CIP) in the Geocentric Celestial Reference System, and X_IAU2000A, Y_IAU2000A are the celestial pole coordinates provided by using the IAU2000A Precession-Nutation theory. The current Bulletin B including (dpsi,deps)_1980 will be maintained until December 2004. For more details refer to IERS Messages 38, on IAU 2000 Resolution Compliancy Information. ============================================================================== 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 dX dY 2003 " " s s 0.001" 0.001" (0h UTC) Final Bulletin B values. MAY 5 52764 -.05314 .51542 -.364158 -32.364158 .05 .08 MAY 10 52769 -.03968 .52505 -.366133 -32.366133 .06 -.06 MAY 15 52774 -.03043 .53185 -.368201 -32.368201 .16 -.18 MAY 20 52779 -.01850 .53753 -.370736 -32.370736 .21 .12 MAY 25 52784 -.00403 .54134 -.373142 -32.373142 .02 .05 MAY 30 52789 .01255 .54458 -.374948 -32.374948 .16 -.02 JUN 4 52794 .02781 .54785 -.375842 -32.375842 .32 .04 Preliminary extension, to be updated weekly in Bulletin A and monthly in Bulletin B. JUN 9 52799 .04486 .54792 -.375140 -32.375140 -.03 -.21 JUN 14 52804 .06220 .54667 -.374268 -32.374268 .00 .00 JUN 19 52809 .08316 .54471 -.372547 -32.372547 .00 .00 JUN 24 52814 .10364 .54316 -.370916 -32.370916 .00 .00 JUN 29 52819 .12275 .54045 -.369132 -32.369132 .00 .00 JUL 4 52824 .14007 .53640 -.367367 -32.367367 .00 .00 JUL 9 52829 .15490 .53105 -.366085 -32.366085 .00 .00 JUL 14 52834 .16843 .52463 -.365063 -32.365063 .00 .00 JUL 19 52839 .18091 .51724 -.364193 -32.364193 .00 .00 JUL 24 52844 .19245 .50891 -.363430 -32.363430 .00 .00 JUL 29 52849 .20308 .49971 -.362728 -32.362728 .00 .00 AUG 3 52854 .21279 .48968 -.362118 -32.362118 .00 .00 AUG 8 52859 .22159 .47890 -.361591 -32.361591 .00 .00 AUG 13 52864 .22944 .46742 -.361187 -32.361187 .00 .00 AUG 18 52869 .23631 .45532 -.360943 -32.360943 .00 .00 AUG 23 52874 .24219 .44268 -.360882 -32.360882 .00 .00 AUG 28 52879 .24704 .42956 -.361019 -32.361019 .00 .00 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, dX, and dY. IERS, B 185 (2) 2 - SMOOTHED VALUES OF X, Y, UT1, D, dX, dY (IERS EVALUATION) at one-day intervals. For smoothing characteristics, see Table2 in the explanatory supplement. The reference system is described in the 2001 IERS Annual Report. 2003 MJD x y UT1-UTC UT1-UT1R D dX dY (0 h UTC) " " s ms ms 0.001" 0.001" MAY 5 52764 -.05314 .51542 -.364086 .072 -.048 .05 .08 MAY 6 52765 -.05010 .51752 -.364024 .572 -.105 .17 .09 MAY 7 52766 -.04715 .51971 -.363914 1.086 -.108 .24 .12 MAY 8 52767 -.04467 .52161 -.363835 1.538 -.015 .19 .08 MAY 9 52768 -.04214 .52333 -.363911 1.847 .171 .08 -.02 MAY 10 52769 -.03968 .52505 -.364200 1.933 .402 .06 -.06 MAY 11 52770 -.03769 .52660 -.364726 1.747 .660 .13 .05 MAY 12 52771 -.03601 .52797 -.365510 1.287 .932 .18 .17 MAY 13 52772 -.03440 .52929 -.366554 .621 1.159 .16 .07 MAY 14 52773 -.03256 .53053 -.367777 -.119 1.235 .12 -.12 MAY 15 52774 -.03043 .53185 -.368970 -.770 1.089 .16 -.18 MAY 16 52775 -.02825 .53318 -.369918 -1.193 .785 .24 .00 MAY 17 52776 -.02589 .53430 -.370533 -1.320 .473 .28 .16 MAY 18 52777 -.02356 .53547 -.370886 -1.174 .239 .25 .15 MAY 19 52778 -.02125 .53655 -.371052 -.851 .142 .22 .09 MAY 20 52779 -.01850 .53753 -.371213 -.477 .182 .21 .12 MAY 21 52780 -.01543 .53861 -.371448 -.164 .252 .21 .19 MAY 22 52781 -.01249 .53964 -.371731 .019 .376 .23 .15 MAY 23 52782 -.00980 .54044 -.372200 .050 .524 .22 .01 MAY 24 52783 -.00696 .54096 -.372769 -.054 .606 .15 -.04 MAY 25 52784 -.00403 .54134 -.373395 -.253 .643 .02 .05 MAY 26 52785 -.00094 .54161 -.374037 -.495 .633 -.06 .15 MAY 27 52786 .00237 .54199 -.374641 -.724 .571 -.02 .12 MAY 28 52787 .00588 .54264 -.375162 -.883 .462 .08 -.01 MAY 29 52788 .00939 .54369 -.375552 -.928 .310 .15 -.10 MAY 30 52789 .01255 .54458 -.375776 -.828 .151 .16 -.02 MAY 31 52790 .01564 .54550 -.375855 -.575 -.041 .16 .16 JUN 1 52791 .01852 .54641 -.375703 -.185 -.252 .19 .27 JUN 2 52792 .02134 .54699 -.375369 .299 -.378 .24 .24 JUN 3 52793 .02438 .54754 -.374971 .815 -.421 .30 .14 JUN 4 52794 .02781 .54785 -.374552 1.290 -.462 .32 .04 JUN 5 52795 .03153 .54792 -.374073 1.645 -.413 .29 -.06 JUN 6 52796 .03503 .54791 -.373747 1.811 -.196 .18 -.16 JUN 7 52797 .03820 .54787 -.373692 1.739 .060 .06 -.22 JUN 8 52798 .04142 .54786 -.373863 1.417 .293 -.02 -.22 JUN 9 52799 .04486 .54792 -.374255 .884 .474 -.03 -.21 JUN 10 52800 .04835 .54807 -.374771 .234 .533 .05 -.26 JUN 11 52801 .05179 .54820 -.375273 -.400 .443 .22 -.33 JUN 12 52802 .05527 .54793 -.375614 -.879 .194 .43 -.31 JUN 13 52803 .05875 .54730 -.375640 -1.106 -.147 .59 -.21 JUN 14 52804 .06220 .54667 -.375328 -1.060 -.447 .00 .00 JUN 15 52805 .06585 .54616 -.374778 -.802 -.644 .00 .00 JUN 16 52806 .06981 .54562 -.374083 -.446 -.713 .00 .00 JUN 17 52807 .07403 .54512 -.373390 -.118 -.646 .00 .00 JUN 18 52808 .07854 .54488 -.372813 .090 -.493 .00 .00 JUN 19 52809 .08316 .54471 -.372409 .139 -.314 .00 .00 JUN 20 52810 .08774 .54453 -.372176 .035 -.162 .00 .00 JUN 21 52811 .09210 .54444 -.372067 -.179 -.066 .00 .00 JUN 22 52812 .09596 .54413 -.372024 -.446 -.044 .00 .00 JUN 23 52813 .09991 .54365 -.371960 -.706 -.093 .00 .00 JUN 24 52814 .10364 .54316 -.371820 -.904 -.196 .00 .00 JUN 25 52815 .10734 .54256 -.371555 -.992 -.347 .00 .00 JUN 26 52816 .11100 .54202 -.371141 -.939 -.477 .00 .00 IERS, B 185 (3) 3 - NORMAL VALUES OF THE EARTH ORIENTATION PARAMETERS AT FIVE-DAY INTERVALS (IERS evaluation). Raw normal values Uncertainties 2003 MJD x y UT1-UTC dX dY x y UT1 dX dY (0 h UTC) " " s 0.001" 0.001" 0.0001s 0.001" MAY 5 52764 -.05319 .51542 -.364100 .039 .088 .02 .02 .02 .02 .02 MAY 10 52769 -.03969 .52503 -.364200 .050 -.039 .01 .02 .02 .02 .02 MAY 15 52774 -.03044 .53187 -.368971 .164 -.161 .02 .02 .02 .02 .02 MAY 20 52779 -.01850 .53753 -.371211 .218 .102 .02 .02 .02 .03 .03 MAY 25 52784 -.00403 .54133 -.373396 .020 .051 .02 .02 .02 .02 .03 MAY 30 52789 .01256 .54457 -.375777 .158 -.023 .03 .02 .02 .02 .02 JUN 4 52794 .02780 .54784 -.374552 .324 .043 .02 .02 .02 .02 .02 JUN 9 52799 .04486 .54792 -.374257 - - .02 .02 .03 - - JUN 14 52804 .06219 .54666 -.375329 .642 -.200 .02 .02 .05 - - JUN 19 52809 .08316 .54470 - - - .02 .01 - - - JUN 24 52814 .10364 .54316 -.371816 - - .01 .02 .08 - - 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 2003 MJD s (microrad/s) MAY 5 52764 .00043 72.921 15111 MAY 10 52769 .00036 15116 MAY 15 52774 .00054 15101 MAY 20 52779 .00055 15101 MAY 25 52784 .00042 15111 MAY 30 52789 .00033 15119 JUN 4 52794 -.00004 15150 5 - INFORMATION ON TIME SCALES No leap second was introduced in UTC on 30 June 2003. No leap second will be introduced in UTC on 31 December 2003. 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 185 (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. Units : 0.001" for x,y , 0.0001s for UT1, 0.001" for dX, dY. -------------------------------------------------------------------------------- EOP series Mean formal uncertainty Periods covered Weighted RMS agreement with Bulletin B -------------------------------------------------------------------------------- x y UT D dX dY Data Number VLBI EOP(AUS) 1 R 01 .22 .28 .13 - - - 11 52765.20 to 52803.27 .16 .26 .06 - - - EOP(BKG) 3 R 01 .12 .10 .04 - - - 11 52765.00 to 52803.00 .17 .11 .09 - - - EOP(BKG) 1 R 02 - - .10 - - - 20 52764.79 to 52803.81 - - .08 - - - EOP(GSFC) 3 R 04 .07 .06 .03 - - - 12 52765.20 to 52803.27 .10 .15 .02 - - - EOP(GSFC) 3 R 03 - - .13 - - - 23 52764.79 to 52815.79 - - .22 - - - EOP(IAA) 3 R 02 .07 .06 .03 - - - 12 52765.20 to 52803.27 .17 .16 .06 - - - EOP(IAA) 3 R 01 - - .12 - - - 24 52764.79 to 52804.34 - - .08 - - - EOP(SPBU) 1 R 02 .10 .08 .03 - - - 11 52765.20 to 52803.27 .26 .25 .11 - - - EOP(SPBU) 2 R 01 - - .13 - - - 22 52764.79 to 52815.79 - - .11 - - - EOP(IVS) 2 R 01 .05 .04 .02 - - - 10 52765.00 to 52796.00 .11 .15 .04 - - - GPS EOP(CODE) 98 P 01 .02 .02 - .10 - - 52 52764.50 to 52815.50 .05 .05 - .20 - - EOP(EMR) 96 P 03 .03 .03 - .04 - - 52 52764.50 to 52815.50 .06 .07 - .32 - - EOP(ESOC) 96 P 01 .02 .02 - .02 - - 52 52764.50 to 52815.50 .12 .14 - .27 - - EOP(GFZ) 96 P 02 .01 .01 - .01 - - 52 52764.50 to 52815.50 .12 .09 - .24 - - EOP(IAA) 1 P 01 .03 .03 - .06 - - 52 52764.50 to 52815.50 .13 .17 - .38 - - EOP(JPL) 96 P 03 .03 .03 - .09 - - 47 52764.50 to 52810.50 .14 .09 - .49 - - EOP(NOAA) 96 P 01 .03 .02 - .03 - - 41 52764.50 to 52804.50 .31 .26 - .88 - - EOP(SIO) 96 P 01 .06 .06 - .12 - - 48 52764.50 to 52811.50 .12 .06 - .24 - - EOP(IGS F)95 P 02 .02 .02 .08 .06 - - 41 52764.50 to 52804.50 .07 .07 .34 .26 - - EOP(IGS R)96 P 02 .04 .03 .19 .07 - - 49 52764.50 to 52812.50 .08 .06 .56 .23 - - EOP(IERS) 97 P 01 .05 .05 .17 .11 - - 52 52764.50 to 52815.50 .03 .03 .35 .19 - - SLR EOP(CSR) 95 L 01 .30 .43 .27 - - - 4 52764.07 to 52772.21 .33 .93 .71 - - - EOP(DUT) 98 L 01 .05 .07 - - - - 4 52764.00 to 52773.00 .42 .47 - - - - EOP(IAA) 2 L 01 .03 .04 .02 .02 - - 53 52764.00 to 52816.00 .09 .22 .30 .12 - - EOP(MCC) 97 L 01 .06 .06 - .08 - - 46 52764.00 to 52809.00 .12 .15 - .56 - - Bulletin A EOP(NEOS) 97 C 01 .05 .06 .10 - - - 53 52764.00 to 52816.00 .06 .07 .15 - - -