BULLETIN B 193 (IAU 2000) 3 March 2004 ============================================================================== 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 2004 " " s s 0.001" 0.001" (0h UTC) Final Bulletin B values. JAN 5 53009 .02159 .15480 -.389940 -32.389940 .01 -.23 JAN 10 53014 .00771 .15763 -.392584 -32.392584 .15 -.29 JAN 15 53019 -.00328 .16136 -.396256 -32.396256 -.01 .19 JAN 20 53024 -.01618 .16722 -.399406 -32.399406 .08 -.04 JAN 25 53029 -.02788 .17443 -.401666 -32.401666 -.12 -.08 JAN 30 53034 -.03595 .18293 -.403713 -32.403713 .08 -.11 FEB 4 53039 -.05120 .18897 -.405146 -32.405146 .09 -.06 Preliminary extension, to be updated weekly in Bulletin A and monthly in Bulletin B. FEB 9 53044 -.06254 .19532 -.406421 -32.406421 -.07 -.24 FEB 14 53049 -.07674 .20443 -.408555 -32.408555 .00 .00 FEB 19 53054 -.08650 .21483 -.410924 -32.410924 .00 .00 FEB 24 53059 -.09984 .22640 -.413728 -32.413728 .00 .00 FEB 29 53064 -.10830 .23797 -.416888 -32.416888 .00 .00 MAR 5 53069 -.11611 .24925 -.420029 -32.420029 .00 .00 MAR 10 53074 -.12167 .26208 -.424087 -32.424087 .00 .00 MAR 15 53079 -.12644 .27532 -.428223 -32.428223 .00 .00 MAR 20 53084 -.13023 .28891 -.432335 -32.432335 .00 .00 MAR 25 53089 -.13303 .30276 -.436417 -32.436417 .00 .00 MAR 30 53094 -.13478 .31677 -.440430 -32.440430 .00 .00 APR 4 53099 -.13545 .33087 -.444336 -32.444336 .00 .00 APR 9 53104 -.13507 .34496 -.448105 -32.448105 .00 .00 APR 14 53109 -.13361 .35896 -.451675 -32.451675 .00 .00 APR 19 53114 -.13112 .37279 -.455017 -32.455017 .00 .00 APR 24 53119 -.12760 .38636 -.458084 -32.458084 .00 .00 APR 29 53124 -.12309 .39960 -.460846 -32.460846 .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 193 (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 2002 IERS Annual Report. 2004 MJD x y UT1-UTC UT1-UT1R D dX dY (0 h UTC) " " s ms ms 0.001" 0.001" JAN 5 53009 .02159 .15480 -.390620 -.680 -.061 .01 -.23 JAN 6 53010 .01879 .15544 -.390524 -.193 -.095 .07 -.13 JAN 7 53011 .01596 .15615 -.390452 .350 -.042 .18 -.01 JAN 8 53012 .01299 .15685 -.390466 .876 .074 .24 -.01 JAN 9 53013 .01015 .15736 -.390623 1.310 .256 .23 -.12 JAN 10 53014 .00771 .15763 -.390998 1.586 .484 .15 -.29 JAN 11 53015 .00538 .15784 -.391602 1.657 .729 .08 -.41 JAN 12 53016 .00303 .15832 -.392455 1.506 .990 .05 -.38 JAN 13 53017 .00115 .15901 -.393569 1.156 1.215 .04 -.21 JAN 14 53018 -.00094 .15999 -.394859 .664 1.299 .04 .12 JAN 15 53019 -.00328 .16136 -.396132 .124 1.226 -.01 .19 JAN 16 53020 -.00539 .16261 -.397273 -.352 1.080 -.08 -.04 JAN 17 53021 -.00754 .16370 -.398261 -.660 .858 -.09 -.27 JAN 18 53022 -.01017 .16503 -.398977 -.733 .570 -.03 -.31 JAN 19 53023 -.01322 .16628 -.399414 -.573 .323 .04 -.18 JAN 20 53024 -.01618 .16722 -.399658 -.252 .191 .08 -.04 JAN 21 53025 -.01864 .16831 -.399841 .107 .191 .09 -.05 JAN 22 53026 -.02109 .16999 -.400079 .372 .287 .08 -.19 JAN 23 53027 -.02383 .17179 -.400435 .450 .450 .03 -.25 JAN 24 53028 -.02622 .17312 -.400975 .314 .624 -.05 -.17 JAN 25 53029 -.02788 .17443 -.401661 .005 .755 -.12 -.08 JAN 26 53030 -.02911 .17587 -.402454 -.398 .835 -.13 -.10 JAN 27 53031 -.03022 .17742 -.403302 -.803 .832 -.07 -.13 JAN 28 53032 -.03161 .17916 -.404094 -1.128 .702 .00 -.12 JAN 29 53033 -.03349 .18100 -.404691 -1.314 .478 .05 -.07 JAN 30 53034 -.03595 .18293 -.405042 -1.329 .249 .08 -.11 JAN 31 53035 -.03895 .18464 -.405190 -1.164 .047 .09 -.25 FEB 1 53036 -.04202 .18589 -.405146 -.833 -.123 .06 -.37 FEB 2 53037 -.04493 .18697 -.404960 -.374 -.227 .04 -.35 FEB 3 53038 -.04797 .18803 -.404712 .159 -.267 .05 -.18 FEB 4 53039 -.05120 .18897 -.404451 .695 -.266 .09 -.06 FEB 5 53040 -.05416 .18977 -.404207 1.155 -.179 .13 -.09 FEB 6 53041 -.05665 .19070 -.404117 1.467 .008 .10 -.25 FEB 7 53042 -.05878 .19196 -.404238 1.572 .273 .02 -.39 FEB 8 53043 -.06062 .19354 -.404665 1.445 .547 -.04 -.39 FEB 9 53044 -.06254 .19532 -.405318 1.103 .743 -.07 -.24 FEB 10 53045 -.06487 .19713 -.406123 .612 .877 -.07 -.05 FEB 11 53046 -.06765 .19905 -.407036 .068 .938 -.05 .07 FEB 12 53047 -.07073 .20089 -.407960 -.413 .875 -.02 .08 FEB 13 53048 -.07376 .20260 -.408757 -.731 .714 .02 .00 FEB 14 53049 -.07674 .20443 -.409376 -.821 .495 .00 .00 FEB 15 53050 -.07942 .20618 -.409755 -.675 .253 .00 .00 FEB 16 53051 -.08150 .20804 -.409911 -.349 .081 .00 .00 FEB 17 53052 -.08293 .21009 -.409959 .050 .055 .00 .00 FEB 18 53053 -.08432 .21230 -.410063 .395 .179 .00 .00 FEB 19 53054 -.08650 .21483 -.410346 .578 .393 .00 .00 FEB 20 53055 -.08989 .21731 -.410857 .540 .633 .00 .00 FEB 21 53056 -.09301 .21954 -.411598 .291 .850 .00 .00 FEB 22 53057 -.09563 .22198 -.412529 -.101 1.013 .00 .00 FEB 23 53058 -.09787 .22429 -.413590 -.543 1.083 .00 .00 FEB 24 53059 -.09984 .22640 -.414665 -.937 1.030 .00 .00 FEB 25 53060 -.10127 .22863 -.415628 -1.206 .857 .00 .00 FEB 26 53061 -.10241 .23099 -.416389 -1.301 .624 .00 .00 IERS, B 193 (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 dX dY x y UT1 dX dY (0 h UTC) " " s 0.001" 0.001" 0.0001s 0.001" JAN 5 53009 .02160 .15481 -.390620 .029 -.282 .01 .01 .02 .02 .03 JAN 10 53014 .00771 .15763 -.390994 .148 -.238 .02 .01 .02 .04 .04 JAN 15 53019 -.00328 .16136 -.396131 -.050 .148 .02 .02 .02 .02 .02 JAN 20 53024 -.01617 .16722 -.399658 .055 -.003 .02 .02 .02 .02 .03 JAN 25 53029 -.02789 .17443 -.401662 -.106 -.072 .02 .02 .02 .03 .03 JAN 30 53034 -.03595 .18294 -.405043 .072 -.197 .01 .02 .02 .02 .03 FEB 4 53039 -.05120 .18897 -.404450 .097 -.044 .01 .02 .02 .02 .03 FEB 9 53044 -.06253 .19532 -.405313 -.071 -.242 .02 .02 .03 .04 .04 FEB 14 53049 -.07674 .20443 -.409377 - - .02 .02 .04 - - FEB 19 53054 -.08650 .21483 -.410345 - - .02 .02 .03 - - FEB 24 53059 -.09983 .22640 -.414657 - - .02 .02 .04 - - 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) JAN 5 53009 .00038 72.921 15114 JAN 10 53014 .00067 15090 JAN 15 53019 .00070 15087 JAN 20 53024 .00056 15100 JAN 25 53029 .00039 15114 JAN 30 53034 .00033 15119 FEB 4 53039 .00025 15126 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 193 (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 .26 .32 .16 - - - 12 53010.20 to 53048.27 .23 .21 .13 - - - EOP(BKG) 3 R 04 .12 .10 .04 - - - 13 53010.20 to 53048.27 .22 .17 .06 - - - EOP(BKG) 3 R 02 - - .17 - - - 25 53009.79 to 53059.79 - - .13 - - - EOP(GSFC) 3 R 06 .07 .07 .03 - - - 13 53010.20 to 53048.27 .22 .10 .06 - - - EOP(GSFC) 3 R 05 - - .17 - - - 33 53009.79 to 53060.79 - - .16 - - - EOP(IAA) 3 R 04 .07 .07 .03 - .12 .05 12 53010.20 to 53048.27 .13 .17 .06 - .18 .04 EOP(IAA) 3 R 03 - - .14 - - - 31 53009.79 to 53059.79 - - .16 - - - EOP(SPBU) 3 R 03 .36 .39 .22 - - - 9 53010.20 to 53045.21 .23 .19 .09 - - - EOP(SPBU) 2 R 01 - - .16 - - - 20 53009.79 to 53046.79 - - .14 - - - EOP(MAO) 3 R 01 .10 .10 .04 - .17 .07 13 53010.14 to 53048.27 .38 .22 .07 - .21 .13 EOP(USNO) 3 R 04 .09 .09 .04 - - - 12 53010.20 to 53048.27 .12 .06 .06 - - - EOP(IVS) 0 R 01 .05 .05 .02 - - - 4 53010.00 to 53020.00 .11 .04 .05 - - - GPS EOP(CODE) 98 P 01 .01 .01 - .24 - - 52 53009.50 to 53060.50 .05 .07 - .21 - - EOP(EMR) 96 P 03 .03 .03 - .04 - - 52 53009.50 to 53060.50 .06 .09 - .38 - - EOP(ESOC) 96 P 01 .02 .02 - .03 - - 52 53009.50 to 53060.50 .18 .06 - .23 - - EOP(GFZ) 96 P 02 .01 .01 - .01 - - 52 53009.50 to 53060.50 .09 .07 - .24 - - EOP(IAA) 1 P 01 .03 .03 - .06 - - 52 53009.50 to 53060.50 .17 .18 - .27 - - EOP(JPL) 96 P 03 .03 .03 - .11 - - 49 53009.50 to 53057.50 .08 .06 - .47 - - EOP(NOAA) 96 P 01 .01 .01 - .02 - - 51 53009.50 to 53059.50 .27 .30 - .57 - - EOP(SIO) 96 P 01 .05 .05 - .11 - - 52 53009.50 to 53060.50 .09 .12 - .23 - - EOP(IGS F)95 P 02 .02 .03 .08 .05 - - 41 53009.50 to 53049.50 .04 .06 .19 .16 - - EOP(IGS R)96 P 02 .03 .04 .20 .06 - - 52 53009.50 to 53060.50 .05 .06 .72 .22 - - EOP(IERS) 97 P 01 .04 .05 .21 .14 - - 52 53009.50 to 53060.50 .03 .02 .46 .17 - - SLR EOP(ASI) 3 L 02 .07 .07 - .24 - - 52 53009.50 to 53060.50 .26 .27 - 1.35 - - EOP(CSR) 95 L 01 .26 .26 .22 - - - 13 53010.01 to 53045.25 .49 .67 1.51 - - - EOP(DUT) 98 L 01 .10 .10 - - - - 40 53022.00 to 53061.00 .24 .31 - - - - EOP(IAA) 2 L 01 .04 .04 .03 .03 - - 53 53009.00 to 53061.00 .13 .13 .26 .15 - - EOP(MCC) 97 L 01 .06 .05 - .10 - - 40 53009.00 to 53054.00 .17 .16 - .53 - - Bulletin A EOP(NEOS) 97 C 01 .05 .07 .08 - - - 53 53009.00 to 53061.00 .05 .06 .20 - - -