BULLETIN B 252 10 February 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 UT1R-UTC dX dY x err y err UT1 err X err Y err (0 h UTC) mas mas ms ms mas mas mas mas ms mas mas Final values Mean formal error 0.012 0.018 0.0390 0.0390 0.091 0.172 2008 12 12 54812 50.451 134.620 -576.4873 -698.1503 -0.177 -0.144 0.022 0.013 0.0265 0.056 0.141 2008 12 13 54813 47.245 134.506 -577.1542 -699.3739 -0.170 -0.083 0.012 0.026 0.0265 0.061 0.153 2008 12 14 54814 44.736 134.386 -577.8542 -700.6034 -0.199 -0.092 0.012 0.015 0.0307 0.052 0.130 2008 12 15 54815 42.791 134.557 -578.7716 -701.8919 -0.239 -0.140 0.011 0.014 0.0215 0.031 0.078 2008 12 16 54816 40.106 134.960 -579.9212 -703.1816 -0.268 -0.192 0.009 0.015 0.0126 0.030 0.075 2008 12 17 54817 36.849 135.131 -581.2532 -704.4312 -0.257 -0.190 0.008 0.027 0.0144 0.030 0.076 2008 12 18 54818 33.671 135.528 -582.6865 -705.6375 -0.196 -0.158 0.008 0.034 0.0352 0.056 0.140 2008 12 19 54819 30.512 136.095 -584.1309 -706.8216 -0.099 -0.137 0.011 0.035 0.0289 0.079 0.198 2008 12 20 54820 27.492 136.625 -585.5097 -708.0139 0.016 -0.187 0.019 0.029 0.0295 0.079 0.198 2008 12 21 54821 24.444 137.420 -586.7289 -709.1981 0.072 -0.270 0.013 0.016 0.0389 0.071 0.178 2008 12 22 54822 21.193 138.213 -587.7445 -710.3719 -0.022 -0.304 0.013 0.012 0.0265 0.047 0.118 2008 12 23 54823 17.887 138.744 -588.5801 -711.5689 -0.201 -0.245 0.012 0.012 0.0179 0.051 0.128 2008 12 24 54824 14.500 139.077 -589.2117 -712.7492 -0.380 -0.085 0.012 0.012 0.0239 0.074 0.187 2008 12 25 54825 10.809 139.527 -589.6098 -713.8460 -0.459 0.017 0.012 0.014 0.0546 0.144 0.363 2008 12 26 54826 6.691 139.965 -589.8516 -714.8805 -0.453 -0.005 0.009 0.015 0.0751 0.209 0.526 2008 12 27 54827 2.803 140.535 -590.0538 -715.9012 -0.428 -0.117 0.009 0.013 0.0570 0.167 0.421 2008 12 28 54828 -1.041 141.781 -590.3137 -716.9332 -0.420 -0.156 0.013 0.013 0.0468 0.058 0.145 2008 12 29 54829 -5.306 143.150 -590.6633 -717.9439 -0.329 -0.223 0.019 0.015 0.0320 0.058 0.146 2008 12 30 54830 -9.632 144.194 -591.1485 -718.9313 -0.227 -0.286 0.011 0.014 0.0226 0.045 0.113 2008 12 31 54831 -13.455 145.108 -591.8664 -719.9670 -0.169 -0.284 0.009 0.013 0.0277 0.064 0.161 2009 1 1 54832 -17.016 146.237 407.1576 278.9236 -0.143 -0.271 0.011 0.010 0.0451 0.113 0.283 2009 1 2 54833 -20.429 147.559 405.9740 277.7662 -0.134 -0.257 0.021 0.010 0.0582 0.142 0.357 2009 1 3 54834 -23.268 149.070 404.6727 276.6015 -0.131 -0.230 0.028 0.020 0.0584 0.109 0.275 2009 1 4 54835 -25.730 150.753 403.3476 275.4522 -0.098 -0.169 0.010 0.016 0.0653 0.035 0.088 2009 1 5 54836 -29.039 152.756 402.0746 274.3081 -0.145 -0.150 0.010 0.013 0.0456 0.035 0.088 2009 1 6 54837 -33.380 154.564 400.9167 273.1471 -0.222 -0.146 0.009 0.016 0.0424 0.035 0.088 2009 1 7 54838 -37.543 156.256 399.9293 271.9653 -0.307 -0.146 0.012 0.015 0.0535 0.035 0.088 2009 1 8 54839 -41.696 158.083 399.2082 270.8528 -0.340 -0.144 0.012 0.016 0.0563 0.040 0.100 2009 1 9 54840 -45.899 159.694 398.6768 269.7958 -0.291 -0.153 0.010 0.031 0.0430 0.041 0.103 2009 1 10 54841 -49.568 161.234 398.1244 268.7041 -0.183 -0.185 0.010 0.041 0.0428 0.041 0.103 2009 1 11 54842 -53.085 162.767 397.4702 267.6365 -0.085 -0.238 0.010 0.041 0.0500 0.042 0.106 Preliminary extension 2009 1 12 54843 -56.504 164.437 396.5156 266.5010 -0.101 -0.284 0.010 0.033 0.0301 0.045 0.114 2009 1 13 54844 -59.603 166.142 395.2868 265.3557 -0.179 -0.298 0.010 0.019 0.0211 0.045 0.114 2009 1 14 54845 -62.424 167.714 393.8312 264.1949 -0.282 -0.254 0.011 0.019 0.0235 0.045 0.114 2009 1 15 54846 -65.337 169.328 392.3175 263.0734 -0.333 -0.162 0.011 0.029 0.0227 0.064 0.162 2009 1 16 54847 -68.184 170.378 390.8872 262.0021 -0.296 -0.057 0.013 0.018 0.0214 0.072 0.181 2009 1 17 54848 -70.732 171.432 389.6204 260.9542 -0.202 0.026 0.015 0.016 0.0320 0.072 0.181 2009 1 18 54849 -73.238 173.130 388.5602 259.9105 -0.118 0.065 0.016 0.017 0.0593 0.072 0.181 2009 1 19 54850 -75.719 174.953 387.7754 258.9225 -0.094 0.055 0.029 0.018 0.0632 0.026 0.065 2009 1 20 54851 -78.288 177.091 387.2769 258.0177 -0.125 -0.002 0.028 0.017 0.0141 0.025 0.063 2009 1 21 54852 -81.155 179.575 386.9829 257.1536 -0.172 -0.084 0.014 0.014 0.0147 0.025 0.063 2009 1 22 54853 -84.347 181.929 386.8165 256.3086 -0.193 -0.148 0.011 0.014 0.0194 0.029 0.072 2009 1 23 54854 -87.568 184.266 386.7780 255.5500 -0.182 -0.160 0.011 0.019 0.0239 0.060 0.150 2009 1 24 54855 -90.096 186.731 386.7441 254.8271 -0.176 -0.126 0.014 0.034 0.0342 0.067 0.168 2009 1 25 54856 -91.587 189.381 386.6262 254.1207 -0.216 -0.089 0.032 0.044 0.0464 0.067 0.168 2009 1 26 54857 -93.145 192.270 386.3416 253.4036 -0.302 -0.076 0.069 0.046 0.0403 0.067 0.168 2009 1 27 54858 -94.462 194.856 385.8547 252.6733 -0.391 -0.080 0.061 0.047 0.0443 0.262 0.658 2009 1 28 54859 -95.938 197.535 385.1793 251.9489 -0.430 -0.081 0.058 0.059 0.0741 0.398 1.000 2009 1 29 54860 -98.078 200.087 384.3507 251.2411 -0.378 -0.066 0.077 0.072 0.1012 0.386 0.971 2009 1 30 54861 -100.257 202.640 383.3938 250.5232 -0.236 -0.035 0.111 0.080 0.0753 0.331 0.832 2009 1 31 54862 -102.810 205.406 382.4424 249.8556 -0.002 0.008 0.092 0.072 0.0573 0.212 0.534 2009 2 1 54863 -105.440 208.035 381.5544 249.2119 -0.002 0.008 0.072 0.059 0.0529 0.212 0.534 2009 2 2 54864 -107.498 210.671 380.7172 248.4993 -0.002 0.008 0.075 0.071 0.0437 0.212 0.534 2009 2 3 54865 -108.457 213.557 380.0211 247.7508 -0.002 0.008 0.071 0.147 0.0439 0.212 0.534 2009 2 4 54866 -109.044 217.007 379.4955 246.9814 -0.002 0.008 0.081 0.172 0.0585 0.212 0.534 2009 2 5 54867 -109.988 220.744 379.0725 246.1651 -0.002 0.008 0.116 0.182 0.0771 0.212 0.534 2009 2 6 54868 -111.599 224.426 378.6058 245.2531 -0.002 0.008 0.136 0.228 0.0996 0.212 0.534 2009 2 7 54869 -113.762 227.986 378.0690 244.3492 -0.003 0.009 0.207 0.097 0.0989 0.212 0.534 2009 2 8 54870 -115.917 231.409 377.3276 243.4414 -0.002 0.008 0.122 0.032 0.0732 0.212 0.534 2009 2 9 54871 -117.981 234.484 376.3187 242.5372 -0.002 0.008 0.078 0.026 0.0929 0.212 0.534 2009 2 10 54872 -119.892 237.276 375.1114 241.6961 -0.002 0.009 0.077 0.041 0.1699 0.212 0.534 2 - DAILY SMOOTHED 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 12 54812 -63.463 -4.611 0.189 0.141 2008 12 13 54813 -62.822 -4.521 0.198 0.153 2008 12 14 54814 -62.592 -4.275 0.199 0.130 2008 12 15 54815 -62.918 -4.126 0.207 0.078 2008 12 16 54816 -63.358 -4.316 0.130 0.075 2008 12 17 54817 -63.419 -4.638 0.131 0.076 2008 12 18 54818 -63.139 -4.742 0.212 0.140 2008 12 19 54819 -62.860 -4.562 0.262 0.198 2008 12 20 54820 -62.670 -4.382 0.262 0.198 2008 12 21 54821 -62.587 -4.371 0.229 0.178 2008 12 22 54822 -62.787 -4.425 0.144 0.118 2008 12 23 54823 -63.197 -4.389 0.155 0.128 2008 12 24 54824 -63.658 -4.259 0.227 0.187 2008 12 25 54825 -63.882 -4.265 0.441 0.363 2008 12 26 54826 -63.864 -4.445 0.638 0.526 2008 12 27 54827 -63.723 -4.606 0.544 0.421 2008 12 28 54828 -63.514 -4.482 0.204 0.145 2008 12 29 54829 -62.990 -4.269 0.206 0.146 2008 12 30 54830 -62.447 -4.127 0.186 0.113 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 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 12 54812 0.7560 0.0147 15.04106704706 0.00000000256 2008 12 13 54813 0.6772 0.0150 15.04106706078 0.00000000261 2008 12 14 54814 0.8048 0.0153 15.04106703857 0.00000000266 2008 12 15 54815 1.0590 0.0153 15.04106699431 0.00000000266 2008 12 16 54816 1.2706 0.0160 15.04106695748 0.00000000279 2008 12 17 54817 1.3811 0.0163 15.04106693824 0.00000000284 2008 12 18 54818 1.4448 0.0159 15.04106692715 0.00000000277 2008 12 19 54819 1.4479 0.0158 15.04106692661 0.00000000275 2008 12 20 54820 1.3341 0.0161 15.04106694642 0.00000000280 2008 12 21 54821 1.1130 0.0161 15.04106698491 0.00000000280 2008 12 22 54822 0.9135 0.0159 15.04106701964 0.00000000277 2008 12 23 54823 0.7335 0.0159 15.04106705098 0.00000000277 2008 12 24 54824 0.5285 0.0161 15.04106708667 0.00000000280 2008 12 25 54825 0.3360 0.0164 15.04106712018 0.00000000286 2008 12 26 54826 0.2203 0.0163 15.04106714032 0.00000000284 2008 12 27 54827 0.2324 0.0161 15.04106713821 0.00000000280 2008 12 28 54828 0.2838 0.0155 15.04106712926 0.00000000270 2008 12 29 54829 0.3842 0.0145 15.04106711179 0.00000000252 2008 12 30 54830 0.5723 0.0144 15.04106707904 0.00000000251 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 4 - INFORMATION ON TIME SCALES TAI - UTC = 33 s. No leap second introduced during period [54812-54842] 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 84 97 3 - 68 71 9 54812.27 to 54840.27 220 140 10 - 60 70 BKG 8 R 2 * 71 84 2 - 52 59 8 54812.27 to 54840.27 110 90 3 - 50 80 GSFC 8 R 4 * 94 121 4 15 73 77 10 54812.27 to 54840.27 90 140 14 16 40 80 IAA 5 R 2 * 91 118 5 - 57 56 9 54812.27 to 54840.27 120 100 16 - 50 40 SPBU 3 R 3 * 94 106 4 - 82 85 9 54812.27 to 54840.27 230 160 12 - 50 80 USNO 6 R 2 * 110 139 5 - 87 92 9 54812.27 to 54840.27 80 80 2 - 30 30 MAO 3 R 1 * 129 163 7 - 82 83 9 54812.29 to 54840.29 150 110 9 - 100 100 IVS 2 R 1 * 37 44 1 - 37 43 8 54812.27 to 54840.27 80 80 2 - 20 60 VLBI Intensive BKG 3 R 2 * - - 8 - - - 26 54812.80 to 54841.33 - - 20 - - - GSFC 8 R 1 * - - 9 - - - 26 54812.80 to 54841.33 - - 14 - - - IAA 5 R 1 * - - 11 - - - 23 54812.80 to 54841.33 - - 23 - - - USNO 5 R 1 * - - 9 - - - 26 54812.80 to 54841.33 - - 17 - - - GPS CODE 98 P 1 5 5 - 4 - - 30 54812.50 to 54841.50 50 30 - 10 - - JPL 96 P 3 9 9 - 4 - - 30 54812.50 to 54841.50 40 30 - 14 - - GFZ 96 P 2 3 3 - 0 - - 30 54812.50 to 54841.50 40 20 - 10 - - ESOC 96 P 1 13 11 - 1 - - 30 54812.50 to 54841.50 50 20 - 14 - - NOAA 96 P 1 3 3 - 31 - - 30 54812.50 to 54841.50 80 70 - 17 - - SIO 96 P 1 18 19 - 4 - - 30 54812.50 to 54841.50 30 50 - 9 - - EMR 96 P 3 33 34 - 6 - - 30 54812.50 to 54841.50 50 40 - 11 - - IAA 1 P 1 29 30 - 6 - - 30 54812.50 to 54841.50 100 190 - 23 - - IGS 96 P 2 * 26 22 - 5 - - 30 54812.50 to 54841.50 40 30 - 7 - - IGS 7 P 1 * 20 20 - 5 - - 30 54812.50 to 54841.50 30 20 - 6 - - SLR MCC 97 L 1 174 175 - 21 - - 31 54812.00 to 54842.00 130 160 - 50 - - IAA 2 L 1 44 46 - 2 - - 31 54812.00 to 54842.00 120 160 - 25 - - ASI 3 L 2 86 83 - 21 - - 30 54812.50 to 54841.50 160 130 - 48 - - ILRS 5 L 1 * 89 89 - 89 - - 29 54812.50 to 54841.50 180 150 - 36 - - BULLETIN A NEOS 97 C 1 32 36 5 - - - 31 54812.00 to 54842.00 20 20 4 - - -