BULLETIN B 254 5 May 2009 Contents are described in ftp://hpiers.obspm.fr/iers/bul/bulb/bulletinb.pdf 1 - DAILY SMOOTHED VALUES OF x, y, UT1-UTC, UT1R-UTC, dX, dY Angular unit is milliarcsecond (mas), time unit is millisecond (ms). The reference systems are described in the 2006 IERS Annual Report. DATE MJD x y UT1-UTC dX dY x err y err UT1 err X err Y err (0 h UTC) mas mas ms mas mas mas mas ms mas mas Final values Mean formal error 0.020 0.023 0.0376 0.072 0.123 2009 1 31 54862 -102.833 205.365 382.4439 -0.199 -0.085 0.032 0.038 0.0486 0.051 0.127 2009 2 1 54863 -105.459 208.037 381.5437 -0.221 -0.120 0.033 0.038 0.0445 0.050 0.126 2009 2 2 54864 -107.489 210.660 380.7136 -0.223 -0.091 0.031 0.030 0.0327 0.047 0.119 2009 2 3 54865 -108.400 213.576 380.0427 -0.207 -0.030 0.030 0.016 0.0257 0.047 0.119 2009 2 4 54866 -109.018 217.008 379.5070 -0.184 0.027 0.031 0.016 0.0324 0.045 0.114 2009 2 5 54867 -110.042 220.745 379.0659 -0.169 0.046 0.031 0.030 0.0356 0.041 0.102 2009 2 6 54868 -111.673 224.431 378.6287 -0.172 0.023 0.031 0.038 0.0237 0.040 0.100 2009 2 7 54869 -113.815 227.977 378.0937 -0.198 -0.028 0.032 0.037 0.0283 0.040 0.100 2009 2 8 54870 -115.902 231.431 377.3351 -0.243 -0.080 0.027 0.026 0.0440 0.041 0.104 2009 2 9 54871 -118.087 234.480 376.3037 -0.309 -0.111 0.015 0.016 0.0338 0.058 0.146 2009 2 10 54872 -119.729 237.232 375.0237 -0.351 -0.112 0.015 0.017 0.0246 0.058 0.146 2009 2 11 54873 -120.539 240.419 373.5832 -0.333 -0.080 0.023 0.028 0.0312 0.058 0.146 2009 2 12 54874 -121.389 244.150 372.1433 -0.266 -0.035 0.014 0.027 0.0435 0.044 0.111 2009 2 13 54875 -122.379 247.763 370.8811 -0.131 -0.005 0.011 0.017 0.0292 0.042 0.106 2009 2 14 54876 -123.690 251.257 369.9206 0.035 0.002 0.013 0.018 0.0357 0.042 0.106 2009 2 15 54877 -125.272 254.961 369.2113 0.160 -0.004 0.023 0.029 0.0538 0.042 0.106 2009 2 16 54878 -126.816 258.801 368.6792 0.153 0.002 0.016 0.030 0.0497 0.033 0.083 2009 2 17 54879 -128.630 262.151 368.3044 0.060 0.016 0.011 0.018 0.0353 0.033 0.082 2009 2 18 54880 -130.489 265.097 368.0646 -0.091 0.039 0.011 0.014 0.0248 0.033 0.082 2009 2 19 54881 -132.348 268.003 367.9049 -0.213 0.062 0.012 0.014 0.0296 0.035 0.087 2009 2 20 54882 -133.379 270.469 367.7699 -0.270 0.075 0.012 0.014 0.0322 0.041 0.104 2009 2 21 54883 -133.709 273.091 367.6138 -0.261 0.079 0.011 0.014 0.0396 0.042 0.105 2009 2 22 54884 -134.197 275.870 367.3530 -0.222 0.084 0.011 0.017 0.0657 0.042 0.105 2009 2 23 54885 -133.817 278.719 366.8716 -0.205 0.040 0.014 0.016 0.0689 0.049 0.124 2009 2 24 54886 -133.123 282.179 366.1518 -0.177 0.034 0.025 0.012 0.0274 0.050 0.126 2009 2 25 54887 -133.363 285.685 365.2167 -0.160 0.032 0.031 0.013 0.0176 0.049 0.123 2009 2 26 54888 -133.580 289.003 364.0774 -0.120 0.033 0.026 0.018 0.0242 0.055 0.138 2009 2 27 54889 -133.614 292.572 362.8290 -0.088 0.034 0.013 0.032 0.0439 0.090 0.226 2009 2 28 54890 -133.986 296.223 361.5635 -0.080 0.034 0.010 0.037 0.0608 0.095 0.239 2009 3 1 54891 -134.380 299.860 360.3425 -0.108 0.031 0.013 0.030 0.0540 0.080 0.200 2009 3 2 54892 -134.787 303.324 359.2100 -0.153 -0.001 0.013 0.015 0.0259 0.047 0.117 Preliminary extension 2009 3 3 54893 -134.781 306.388 358.1956 -0.213 -0.032 0.013 0.011 0.0174 0.036 0.091 2009 3 4 54894 -134.170 309.721 357.3171 -0.245 -0.051 0.020 0.014 0.0236 0.037 0.092 2009 3 5 54895 -133.705 313.257 356.5502 -0.220 -0.060 0.011 0.024 0.0468 0.051 0.128 2009 3 6 54896 -133.453 316.879 355.7795 -0.133 -0.064 0.009 0.015 0.0362 0.057 0.143 2009 3 7 54897 -133.143 320.773 354.8782 -0.016 -0.068 0.012 0.016 0.0422 0.057 0.143 2009 3 8 54898 -133.000 324.661 353.7777 0.075 -0.066 0.024 0.029 0.0512 0.057 0.143 2009 3 9 54899 -132.800 328.853 352.3969 0.061 -0.021 0.030 0.028 0.0421 0.033 0.083 2009 3 10 54900 -132.519 332.998 350.7574 -0.016 0.027 0.030 0.014 0.0338 0.032 0.081 2009 3 11 54901 -132.131 336.802 349.0114 -0.130 0.074 0.022 0.012 0.0266 0.032 0.081 2009 3 12 54902 -131.988 340.685 347.2868 -0.210 0.107 0.011 0.014 0.0321 0.033 0.084 2009 3 13 54903 -131.748 343.888 345.6994 -0.242 0.144 0.009 0.014 0.0322 0.037 0.094 2009 3 14 54904 -130.872 346.765 344.3256 -0.234 0.195 0.011 0.015 0.0398 0.038 0.095 2009 3 15 54905 -130.312 350.195 343.1953 -0.203 0.246 0.011 0.028 0.0615 0.038 0.095 2009 3 16 54906 -129.524 353.352 342.2761 -0.152 0.251 0.009 0.036 0.0398 0.039 0.097 2009 3 17 54907 -128.475 356.615 341.5283 -0.097 0.207 0.009 0.036 0.0396 0.039 0.097 2009 3 18 54908 -127.730 359.922 340.9211 -0.056 0.125 0.012 0.035 0.0592 0.039 0.098 2009 3 19 54909 -127.297 363.360 340.3461 -0.038 0.035 0.011 0.028 0.0615 0.046 0.116 2009 3 20 54910 -126.868 366.835 339.6985 -0.038 -0.025 0.009 0.016 0.0573 0.048 0.121 2009 3 21 54911 -126.004 370.144 338.9282 -0.041 -0.036 0.011 0.015 0.0594 0.048 0.121 2009 3 22 54912 -124.896 373.691 337.9253 -0.038 0.001 0.012 0.014 0.0612 0.048 0.120 2009 3 23 54913 -123.478 376.882 336.6789 -0.045 0.086 0.012 0.013 0.0327 0.040 0.100 2009 3 24 54914 -122.102 380.527 335.2198 -0.047 0.145 0.012 0.014 0.0228 0.040 0.100 2009 3 25 54915 -120.934 384.387 333.6114 -0.037 0.175 0.012 0.014 0.0294 0.040 0.100 2009 3 26 54916 -119.902 387.978 331.9485 -0.031 0.168 0.022 0.027 0.0455 0.069 0.173 2009 3 27 54917 -119.208 391.594 330.2921 -0.047 0.132 0.022 0.032 0.0352 0.089 0.223 2009 3 28 54918 -118.504 394.990 328.7176 -0.085 0.091 0.012 0.030 0.0388 0.089 0.223 2009 3 29 54919 -118.056 398.190 327.3473 -0.109 0.082 0.011 0.031 0.0473 0.072 0.181 2009 3 30 54920 -118.401 400.899 326.2211 -0.066 0.133 0.011 0.026 0.0237 0.035 0.089 2009 3 31 54921 -118.939 403.613 325.2905 0.036 0.183 0.011 0.015 0.0157 0.035 0.089 2009 4 1 54922 -118.855 406.012 324.4862 0.135 0.176 0.022 0.014 0.0208 0.035 0.089 2 - DAILY VALUES OF CELESTIAL POLE OFFSETS dPsi1980 dEps1980 dPsi1980 dEps1980 ....dPsi,dEps / IAU 1980 precession-nutation model Description : ftp://hpiers.obspm.fr/iers/bul/bulb/bulletinb.pdf The reference systems are described in the 2006 IERS Annual Report. DATE MJD dPsi1980 dEps1980 sig dPsi sig dEps (0 h UTC) mas mas mas mas 2009 1 31 54862 -62.099 -4.641 0.141 0.127 2009 2 1 54863 -62.192 -4.692 0.140 0.126 2009 2 2 54864 -62.258 -4.619 0.133 0.119 2009 2 3 54865 -62.432 -4.454 0.133 0.119 2009 2 4 54866 -62.772 -4.312 0.134 0.114 2009 2 5 54867 -63.168 -4.388 0.185 0.102 2009 2 6 54868 -63.373 -4.737 0.206 0.100 2009 2 7 54869 -63.222 -5.146 0.206 0.100 2009 2 8 54870 -62.809 -5.315 0.209 0.104 2009 2 9 54871 -62.400 -5.194 0.222 0.146 2009 2 10 54872 -62.049 -5.003 0.222 0.146 2009 2 11 54873 -61.728 -4.929 0.241 0.146 2009 2 12 54874 -61.562 -4.963 0.181 0.111 2009 2 13 54875 -61.559 -5.029 0.173 0.106 2009 2 14 54876 -61.624 -5.120 0.173 0.106 2009 2 15 54877 -61.624 -5.254 0.173 0.106 2009 2 16 54878 -61.688 -5.372 0.114 0.083 2009 2 17 54879 -61.850 -5.428 0.112 0.082 2009 2 18 54880 -62.169 -5.447 0.112 0.082 2009 2 19 54881 -62.377 -5.531 0.123 0.087 2009 2 20 54882 -62.321 -5.707 0.175 0.104 2009 2 21 54883 -62.076 -5.863 0.180 0.105 2009 2 22 54884 -61.856 -5.859 0.181 0.105 2009 2 23 54885 -61.781 -5.745 0.166 0.124 2009 2 24 54886 -61.652 -5.578 0.164 0.126 2009 2 25 54887 -61.494 -5.527 0.157 0.123 2009 2 26 54888 -61.318 -5.602 0.176 0.138 2009 2 27 54889 -61.286 -5.713 0.307 0.226 2009 2 28 54890 -61.414 -5.778 0.327 0.239 2009 3 1 54891 -61.641 -5.791 0.280 0.200 2009 3 2 54892 -61.892 -5.819 0.167 0.117 3 - EARTH ANGULAR VELOCITY : DAILY VALUES OF LOD, OMEGA AT 0hUTC LOD : Excess of the Length of day - 86400 s TAI OMEGA : Earth angular velocity Description: ftp://hpiers.obspm.fr/iers/bul/bulb/bulletinb.pdf DATE MJD LOD sigma OMEGA sigma (0 h UTC) ms ms mas/ms mas/ms 2009 1 31 54862 0.9520 0.0015 15.04106701294 0.00000000026 2009 2 1 54863 0.8624 0.0016 15.04106702854 0.00000000028 2009 2 2 54864 0.7136 0.0015 15.04106705444 0.00000000026 2009 2 3 54865 0.5572 0.0015 15.04106708167 0.00000000026 2009 2 4 54866 0.4502 0.0015 15.04106710030 0.00000000026 2009 2 5 54867 0.4233 0.0015 15.04106710498 0.00000000026 2009 2 6 54868 0.4670 0.0016 15.04106709737 0.00000000028 2009 2 7 54869 0.6412 0.0016 15.04106706705 0.00000000028 2009 2 8 54870 0.8959 0.0016 15.04106702271 0.00000000028 2009 2 9 54871 1.1690 0.0016 15.04106697516 0.00000000028 2009 2 10 54872 1.3925 0.0016 15.04106693625 0.00000000028 2009 2 11 54873 1.4582 0.0015 15.04106692482 0.00000000026 2009 2 12 54874 1.3796 0.0016 15.04106693850 0.00000000028 2009 2 13 54875 1.1374 0.0016 15.04106698066 0.00000000028 2009 2 14 54876 0.8424 0.0016 15.04106703202 0.00000000028 2009 2 15 54877 0.6135 0.0018 15.04106707187 0.00000000031 2009 2 16 54878 0.4221 0.0019 15.04106710519 0.00000000033 2009 2 17 54879 0.3001 0.0020 15.04106712643 0.00000000035 2009 2 18 54880 0.1875 0.0020 15.04106714603 0.00000000035 2009 2 19 54881 0.1365 0.0020 15.04106715491 0.00000000035 2009 2 20 54882 0.1815 0.0021 15.04106714707 0.00000000037 2009 2 21 54883 0.2313 0.0021 15.04106713840 0.00000000037 2009 2 22 54884 0.3442 0.0018 15.04106711875 0.00000000031 2009 2 23 54885 0.5890 0.0017 15.04106707613 0.00000000030 2009 2 24 54886 0.8407 0.0016 15.04106703232 0.00000000028 2009 2 25 54887 1.0022 0.0016 15.04106700420 0.00000000028 2009 2 26 54888 1.1725 0.0017 15.04106697455 0.00000000030 2009 2 27 54889 1.2633 0.0017 15.04106695875 0.00000000030 2009 2 28 54890 1.2320 0.0017 15.04106696420 0.00000000030 2009 3 1 54891 1.1589 0.0017 15.04106697692 0.00000000030 2009 3 2 54892 1.0415 0.0016 15.04106699736 0.00000000028 4 - INFORMATION ON TIME SCALES TAI - UTC = 33 s. No leap second introduced during period [54862-54892] All information concerning time scales : - leap seconds announcements : Bulletin C - DUT1 announcements (UT1-UTC with 0.1 ms accuracy) : Bulletin D can be found at : - web site : http://hpiers.obspm.fr/eop-pc/ - anonymous ftp : hpiers.obspm.fr/iers/ or 145.238.100.28 5 - SUMMARY OF CONTRIBUTED EARTH ORIENTATION PARAMETERS SERIES This section gives the average precision of the individual series, some of them contributing to the combination (*) and their average agreement with it. The period covered is that one of Bulletin B. Units : micro-arc-seconds for x/y/dX/dY micro-seconds for UT1/LOD ----------------------------------------------------------------------------- EOP series first line : Mean formal uncertainty Periods covered second line : Weighted RMS agreement with Bulletin B ----------------------------------------------------------------------------- x y UT1 LOD dX dY Data Number VLBI Standards AUS 1 R 1 76 84 3 - 66 64 8 54865.21 to 54889.27 40 80 7 - 160 40 BKG 8 R 2 * 68 65 2 - 47 47 8 54865.21 to 54889.27 190 100 5 - 50 90 GSFC 8 R 4 * 59 61 2 6 51 52 8 54865.21 to 54889.27 140 80 3 14 30 40 IAA 5 R 2 * 61 64 2 - 44 46 8 54865.21 to 54889.27 150 110 4 - 30 60 SPBU 3 R 3 * 76 87 3 - 70 67 8 54865.21 to 54889.27 170 210 5 - 60 60 USNO 6 R 2 * 66 65 2 - 59 61 8 54865.21 to 54889.27 190 40 2 - 40 30 MAO 3 R 1 * 76 77 3 - 56 56 8 54865.22 to 54889.26 170 60 6 - 120 50 IVS 2 R 1 * 37 36 1 - 34 36 8 54865.21 to 54889.27 130 60 2 - 40 40 VLBI Intensive BKG 3 R 2 * - - 10 - - - 33 54862.33 to 54891.33 - - 25 - - - GSFC 8 R 1 * - - 12 - - - 33 54862.33 to 54891.33 - - 16 - - - IAA 5 R 1 * - - 12 - - - 30 54863.33 to 54891.33 - - 21 - - - USNO 5 R 1 * - - 10 - - - 33 54862.33 to 54891.33 - - 21 - - - GPS CODE 98 P 1 4 4 - 2 - - 30 54862.50 to 54891.50 60 30 - 12 - - JPL 96 P 3 9 9 - 6 - - 30 54862.50 to 54891.50 50 40 - 21 - - GFZ 96 P 2 3 3 - 0 - - 30 54862.50 to 54891.50 50 40 - 14 - - ESOC 96 P 1 12 10 - 1 - - 30 54862.50 to 54891.50 30 30 - 10 - - NOAA 96 P 1 2 3 - 32 - - 30 54862.50 to 54891.50 90 70 - 17 - - SIO 96 P 1 19 21 - 5 - - 30 54862.50 to 54891.50 50 30 - 11 - - EMR 96 P 3 33 34 - 6 - - 30 54862.50 to 54891.50 50 50 - 20 - - IAA 1 P 1 27 28 - 5 - - 30 54862.50 to 54891.50 90 100 - 31 - - IGS 96 P 2 * 31 23 - 7 - - 30 54862.50 to 54891.50 40 30 - 8 - - IGS 7 P 1 * 22 21 - 6 - - 30 54862.50 to 54891.50 40 20 - 10 - - SLR MCC 97 L 1 215 161 - 21 - - 31 54862.00 to 54892.00 170 110 - 122 - - IAA 2 L 1 47 40 - 2 - - 31 54862.00 to 54892.00 210 180 - 25 - - ASI 3 L 2 104 80 - 0 - - 30 54862.50 to 54891.50 300 240 - 19 - - ILRS 5 L 1 * 71 71 - 71 - - 30 54862.50 to 54891.50 100 120 - 28 - - BULLETIN A NEOS 97 C 1 40 34 6 - - - 31 54862.00 to 54892.00 50 30 6 - - -