BULLETIN B 253 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 0.015 0.020 0.0417 0.075 0.153 2008 12 31 54831 -13.455 145.108 -591.8664 -0.169 -0.284 0.009 0.013 0.0277 0.064 0.161 2009 1 1 54832 -17.016 146.237 407.1576 -0.143 -0.271 0.011 0.010 0.0451 0.113 0.283 2009 1 2 54833 -20.429 147.559 405.9740 -0.134 -0.257 0.021 0.010 0.0582 0.142 0.357 2009 1 3 54834 -23.268 149.070 404.6727 -0.131 -0.230 0.028 0.020 0.0584 0.109 0.275 2009 1 4 54835 -25.730 150.753 403.3476 -0.098 -0.169 0.010 0.016 0.0653 0.035 0.088 2009 1 5 54836 -29.039 152.756 402.0746 -0.145 -0.150 0.010 0.013 0.0456 0.035 0.088 2009 1 6 54837 -33.380 154.564 400.9167 -0.222 -0.146 0.009 0.016 0.0424 0.035 0.088 2009 1 7 54838 -37.543 156.256 399.9293 -0.307 -0.146 0.012 0.015 0.0535 0.035 0.088 2009 1 8 54839 -41.696 158.083 399.2082 -0.340 -0.144 0.012 0.016 0.0563 0.040 0.100 2009 1 9 54840 -45.899 159.694 398.6768 -0.291 -0.153 0.010 0.031 0.0430 0.041 0.103 2009 1 10 54841 -49.568 161.234 398.1244 -0.183 -0.185 0.010 0.041 0.0428 0.041 0.103 2009 1 11 54842 -53.085 162.767 397.4702 -0.085 -0.238 0.010 0.041 0.0500 0.042 0.106 2009 1 12 54843 -56.504 164.437 396.5156 -0.101 -0.284 0.010 0.033 0.0301 0.045 0.114 2009 1 13 54844 -59.603 166.143 395.2868 -0.182 -0.298 0.010 0.019 0.0211 0.045 0.114 2009 1 14 54845 -62.424 167.713 393.8309 -0.235 -0.261 0.011 0.019 0.0235 0.045 0.114 2009 1 15 54846 -65.337 169.328 392.3164 -0.285 -0.171 0.011 0.029 0.0227 0.064 0.162 2009 1 16 54847 -68.184 170.379 390.8872 -0.284 -0.060 0.013 0.018 0.0214 0.072 0.181 2009 1 17 54848 -70.732 171.431 389.6165 -0.256 0.030 0.015 0.016 0.0333 0.072 0.181 2009 1 18 54849 -73.238 173.130 388.5583 -0.235 0.081 0.016 0.017 0.0562 0.072 0.181 2009 1 19 54850 -75.721 174.956 387.7766 -0.211 0.062 0.029 0.018 0.0683 0.022 0.056 2009 1 20 54851 -78.285 177.086 387.2767 -0.196 -0.011 0.028 0.017 0.0233 0.022 0.056 2009 1 21 54852 -81.158 179.579 386.9824 -0.184 -0.092 0.014 0.014 0.0144 0.022 0.056 2009 1 22 54853 -84.345 181.928 386.8180 -0.189 -0.163 0.011 0.014 0.0209 0.025 0.064 2009 1 23 54854 -87.567 184.263 386.7777 -0.173 -0.172 0.011 0.018 0.0269 0.058 0.145 2009 1 24 54855 -90.105 186.738 386.7497 -0.098 -0.086 0.014 0.019 0.0323 0.066 0.166 2009 1 25 54856 -91.566 189.391 386.6245 -0.009 0.058 0.022 0.019 0.0408 0.069 0.174 2009 1 26 54857 -93.198 192.251 386.3369 0.062 0.196 0.013 0.016 0.0375 0.109 0.274 2009 1 27 54858 -94.485 194.839 385.8680 0.063 0.254 0.013 0.012 0.0454 0.126 0.317 2009 1 28 54859 -95.928 197.499 385.1932 0.025 0.236 0.024 0.016 0.0625 0.123 0.309 2009 1 29 54860 -98.113 200.068 384.3678 -0.054 0.138 0.031 0.030 0.0679 0.054 0.137 2009 1 30 54861 -100.273 202.610 383.4135 -0.140 0.013 0.032 0.037 0.0564 0.051 0.127 Preliminary extension 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 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 2008 12 31 54831 -62.158 -4.074 0.248 0.161 2009 1 1 54832 -62.106 -4.084 0.353 0.283 2009 1 2 54833 -62.155 -4.092 0.391 0.357 2009 1 3 54834 -62.199 -4.119 0.303 0.275 2009 1 4 54835 -62.160 -4.184 0.110 0.088 2009 1 5 54836 -62.375 -4.269 0.110 0.088 2009 1 6 54837 -62.790 -4.202 0.110 0.088 2009 1 7 54838 -63.379 -4.027 0.110 0.088 2009 1 8 54839 -63.819 -3.990 0.136 0.100 2009 1 9 54840 -63.708 -4.196 0.144 0.103 2009 1 10 54841 -62.988 -4.416 0.144 0.103 2009 1 11 54842 -62.157 -4.405 0.147 0.106 2009 1 12 54843 -61.848 -4.267 0.162 0.114 2009 1 13 54844 -61.916 -4.285 0.162 0.114 2009 1 14 54845 -61.931 -4.468 0.184 0.114 2009 1 15 54846 -62.011 -4.544 0.188 0.162 2009 1 16 54847 -62.221 -4.393 0.189 0.181 2009 1 17 54848 -62.528 -4.197 0.189 0.181 2009 1 18 54849 -62.710 -4.157 0.189 0.181 2009 1 19 54850 -62.652 -4.283 0.104 0.056 2009 1 20 54851 -62.561 -4.432 0.086 0.056 2009 1 21 54852 -62.551 -4.538 0.086 0.056 2009 1 22 54853 -62.600 -4.674 0.097 0.064 2009 1 23 54854 -62.532 -4.818 0.180 0.145 2009 1 24 54855 -62.261 -4.817 0.194 0.166 2009 1 25 54856 -61.931 -4.576 0.203 0.174 2009 1 26 54857 -61.595 -4.200 0.334 0.274 2009 1 27 54858 -61.392 -3.948 0.359 0.317 2009 1 28 54859 -61.335 -3.953 0.349 0.309 2009 1 29 54860 -61.527 -4.184 0.152 0.137 2009 1 30 54861 -61.851 -4.459 0.141 0.127 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 2008 12 31 54831 0.8256 0.0145 15.04106703494 0.00000000252 2009 1 1 54832 1.0657 0.0146 15.04106699315 0.00000000254 2009 1 2 54833 1.2261 0.0148 15.04106696522 0.00000000258 2009 1 3 54834 1.3035 0.0149 15.04106695175 0.00000000259 2009 1 4 54835 1.3055 0.0151 15.04106695140 0.00000000263 2009 1 5 54836 1.2194 0.0153 15.04106696639 0.00000000266 2009 1 6 54837 1.0516 0.0016 15.04106699560 0.00000000028 2009 1 7 54838 0.8134 0.0016 15.04106703707 0.00000000028 2009 1 8 54839 0.5943 0.0016 15.04106707521 0.00000000028 2009 1 9 54840 0.5407 0.0016 15.04106708454 0.00000000028 2009 1 10 54841 0.6169 0.0016 15.04106707128 0.00000000028 2009 1 11 54842 0.8088 0.0017 15.04106703787 0.00000000030 2009 1 12 54843 1.1084 0.0018 15.04106698571 0.00000000031 2009 1 13 54844 1.3482 0.0018 15.04106694397 0.00000000031 2009 1 14 54845 1.4989 0.0018 15.04106691773 0.00000000031 2009 1 15 54846 1.5111 0.0018 15.04106691561 0.00000000031 2009 1 16 54847 1.3745 0.0018 15.04106693939 0.00000000031 2009 1 17 54848 1.1827 0.0018 15.04106697278 0.00000000031 2009 1 18 54849 0.9517 0.0018 15.04106701299 0.00000000031 2009 1 19 54850 0.6386 0.0018 15.04106706750 0.00000000031 2009 1 20 54851 0.3783 0.0019 15.04106711281 0.00000000033 2009 1 21 54852 0.2307 0.0019 15.04106713851 0.00000000033 2009 1 22 54853 0.0995 0.0019 15.04106716135 0.00000000033 2009 1 23 54854 0.0505 0.0020 15.04106716988 0.00000000035 2009 1 24 54855 0.0938 0.0019 15.04106716234 0.00000000033 2009 1 25 54856 0.2173 0.0017 15.04106714084 0.00000000030 2009 1 26 54857 0.3765 0.0016 15.04106711313 0.00000000028 2009 1 27 54858 0.5504 0.0015 15.04106708285 0.00000000026 2009 1 28 54859 0.7371 0.0015 15.04106705035 0.00000000026 2009 1 29 54860 0.9009 0.0015 15.04106702184 0.00000000026 2009 1 30 54861 0.9688 0.0015 15.04106701002 0.00000000026 4 - INFORMATION ON TIME SCALES TAI - UTC = 33 s. No leap second introduced during period [54831-54861] 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 78 83 3 - 63 63 8 54831.29 to 54858.21 220 100 6 - 50 30 BKG 8 R 2 * 85 87 3 - 59 64 9 54831.29 to 54858.21 50 60 11 - 50 80 GSFC 8 R 4 * 80 83 3 10 67 72 9 54831.29 to 54858.21 80 80 9 19 30 40 IAA 5 R 2 * 83 86 3 - 56 54 9 54831.29 to 54858.21 30 60 10 - 70 50 SPBU 3 R 3 * 79 86 3 - 64 64 8 54831.29 to 54858.21 180 110 6 - 50 90 USNO 6 R 2 * 85 85 3 - 66 75 8 54831.29 to 54858.21 70 80 3 - 20 30 MAO 3 R 1 * 106 112 4 - 74 70 9 54831.28 to 54858.22 130 50 10 - 70 40 IVS 2 R 1 * 46 46 1 - 46 50 8 54831.29 to 54858.21 70 60 2 - 10 20 VLBI Intensive BKG 3 R 2 * - - 8 - - - 28 54831.80 to 54860.79 - - 22 - - - GSFC 8 R 1 * - - 9 - - - 28 54831.80 to 54860.79 - - 19 - - - IAA 5 R 1 * - - 12 - - - 26 54831.80 to 54860.79 - - 26 - - - USNO 5 R 1 * - - 9 - - - 28 54831.80 to 54860.79 - - 18 - - - GPS CODE 98 P 1 4 5 - 2 - - 30 54831.50 to 54860.50 50 50 - 9 - - JPL 96 P 3 9 9 - 5 - - 30 54831.50 to 54860.50 50 40 - 15 - - GFZ 96 P 2 3 3 - 0 - - 30 54831.50 to 54860.50 50 30 - 10 - - ESOC 96 P 1 14 11 - 1 - - 30 54831.50 to 54860.50 40 40 - 12 - - NOAA 96 P 1 3 3 - 29 - - 30 54831.50 to 54860.50 80 90 - 17 - - SIO 96 P 1 20 21 - 4 - - 30 54831.50 to 54860.50 40 40 - 12 - - EMR 96 P 3 34 34 - 6 - - 30 54831.50 to 54860.50 60 40 - 11 - - IAA 1 P 1 29 30 - 6 - - 30 54831.50 to 54860.50 100 140 - 26 - - IGS 96 P 2 * 32 24 - 6 - - 30 54831.50 to 54860.50 50 30 - 7 - - IGS 7 P 1 * 22 21 - 6 - - 30 54831.50 to 54860.50 30 20 - 7 - - SLR MCC 97 L 1 163 151 - 20 - - 31 54831.00 to 54861.00 120 190 - 67 - - IAA 2 L 1 42 40 - 2 - - 31 54831.00 to 54861.00 140 190 - 20 - - ASI 3 L 2 100 92 - 16 - - 30 54831.50 to 54860.50 200 130 - 33 - - ILRS 5 L 1 * 89 89 - 89 - - 29 54831.50 to 54860.50 140 80 - 42 - - BULLETIN A NEOS 97 C 1 38 46 6 - - - 31 54831.00 to 54861.00 30 30 12 - - -