BULLETIN B 291 1 May 2012 Contents are described in ftp://hpiers.obspm.fr/iers/bul/bulb_new/bulletinb.pdf 1 - DAILY FINAL VALUES OF x, y, UT1-UTC, dX, dY Angular unit is milliarcsecond (mas), time unit is millisecond (ms). Upgraded solution from February 1 2011 - consistent with ITRF 2008. 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 0.0070 0.062 0.083 2012 3 2 55988 18.937 275.646 -473.1884 0.111 -0.303 0.023 0.025 0.0040 0.141 0.216 2012 3 3 55989 18.563 277.173 -473.5285 0.089 -0.259 0.023 0.025 0.0039 0.136 0.192 2012 3 4 55990 17.782 278.172 -473.9946 0.063 -0.232 0.023 0.025 0.0043 0.120 0.144 2012 3 5 55991 17.387 279.057 -474.6191 0.063 -0.317 0.021 0.024 0.0040 0.114 0.146 2012 3 6 55992 16.938 279.996 -475.4440 0.053 -0.354 0.021 0.024 0.0023 0.103 0.126 2012 3 7 55993 15.713 280.781 -476.4778 0.055 -0.372 0.021 0.023 0.0253 0.089 0.107 2012 3 8 55994 14.414 281.463 -477.6973 0.064 -0.383 0.021 0.023 0.0110 0.072 0.087 2012 3 9 55995 13.219 282.526 -479.0665 0.076 -0.390 0.021 0.023 0.0027 0.056 0.068 2012 3 10 55996 12.112 283.779 -480.5270 0.089 -0.393 0.021 0.023 0.0048 0.054 0.065 2012 3 11 55997 11.081 285.000 -481.9953 0.101 -0.387 0.021 0.023 0.0064 0.056 0.069 2012 3 12 55998 9.693 286.339 -483.3724 0.111 -0.366 0.022 0.024 0.0076 0.060 0.074 2012 3 13 55999 8.716 287.402 -484.6160 0.115 -0.333 0.022 0.024 0.0076 0.062 0.077 2012 3 14 56000 7.787 288.851 -485.7658 0.113 -0.287 0.021 0.023 0.0023 0.066 0.081 2012 3 15 56001 6.396 290.088 -486.8843 0.123 -0.261 0.021 0.023 0.0239 0.051 0.067 2012 3 16 56002 4.961 291.305 -488.0525 0.131 -0.237 0.021 0.023 0.0022 0.033 0.048 2012 3 17 56003 3.408 292.453 -489.3520 0.134 -0.231 0.021 0.023 0.0060 0.032 0.048 2012 3 18 56004 1.664 293.818 -490.7959 0.132 -0.232 0.021 0.023 0.0098 0.039 0.056 2012 3 19 56005 -0.066 295.068 -492.3400 0.127 -0.233 0.021 0.024 0.0088 0.045 0.064 2012 3 20 56006 -1.503 295.981 -493.9230 0.118 -0.230 0.021 0.024 0.0033 0.052 0.071 2012 3 21 56007 -2.628 296.959 -495.4831 0.104 -0.200 0.020 0.023 0.0308 0.047 0.066 2012 3 22 56008 -3.668 298.210 -496.9786 0.091 -0.163 0.020 0.023 0.0074 0.040 0.057 2012 3 23 56009 -4.461 299.582 -498.3959 0.078 -0.125 0.020 0.023 0.0032 0.033 0.048 2012 3 24 56010 -4.601 300.921 -499.7354 0.129 -0.121 0.020 0.023 0.0040 0.031 0.045 2012 3 25 56011 -5.048 302.625 -500.9856 0.203 -0.130 0.020 0.023 0.0065 0.031 0.045 2012 3 26 56012 -5.769 303.991 -502.1345 0.295 -0.150 0.020 0.024 0.0060 0.030 0.043 2012 3 27 56013 -6.669 305.064 -503.1977 0.361 -0.174 0.020 0.024 0.0022 0.030 0.042 2012 3 28 56014 -7.584 305.823 -504.2043 0.324 -0.259 0.019 0.023 0.0037 0.043 0.058 2012 3 29 56015 -8.111 307.058 -505.1893 0.254 -0.355 0.019 0.023 0.0051 0.057 0.076 2012 3 30 56016 -8.824 308.790 -506.1999 0.176 -0.439 0.019 0.023 0.0024 0.072 0.093 2012 3 31 56017 -9.569 310.658 -507.2863 0.149 -0.438 0.019 0.023 0.0018 0.076 0.103 2012 4 1 56018 -10.272 312.753 -508.5085 0.142 -0.392 0.019 0.023 0.0044 0.077 0.111 Preliminary extension 2012 4 2 56019 -11.351 314.853 -509.8935 0.136 -0.317 0.020 0.023 0.0059 0.068 0.114 2012 4 3 56020 -12.264 316.855 -511.4393 0.140 -0.253 0.020 0.023 0.0029 0.068 0.121 2012 4 4 56021 -12.891 318.655 -513.1549 0.264 -0.238 0.020 0.023 0.0228 0.072 0.127 2012 4 5 56022 -13.368 320.312 -514.9928 0.414 -0.235 0.020 0.023 0.0018 0.076 0.134 2012 4 6 56023 -13.710 322.167 -516.8596 0.416 -0.259 0.020 0.023 0.0191 0.072 0.129 2012 4 7 56024 -13.657 324.150 -518.6314 0.353 -0.289 0.022 0.023 0.0083 0.066 0.120 2012 4 8 56025 -13.092 325.975 -520.2019 0.276 -0.315 0.022 0.023 0.0074 0.059 0.110 2012 4 9 56026 -12.298 327.895 -521.5379 0.191 -0.333 0.020 0.023 0.0069 0.053 0.101 2012 4 10 56027 -11.614 330.091 -522.6739 0.103 -0.345 0.020 0.023 0.0046 0.047 0.092 2012 4 11 56028 -10.891 332.536 -523.7003 0.017 -0.350 0.020 0.023 0.0026 0.040 0.082 2012 4 12 56029 -9.891 334.818 -524.7324 -0.004 -0.343 0.020 0.023 0.0176 0.027 0.054 2012 4 13 56030 -8.880 337.106 -525.8409 0.000 -0.336 0.020 0.023 0.0025 0.011 0.021 2012 4 14 56031 -8.009 339.142 -527.0342 0.002 0.002 0.020 0.023 0.0039 0.048 0.057 2012 4 15 56032 -7.221 341.121 -528.2914 0.002 0.002 0.363 0.155 0.0064 0.063 0.074 2012 4 16 56033 -6.300 342.959 -529.5897 0.002 0.002 0.610 0.334 0.0073 0.063 0.074 2012 4 17 56034 -5.197 344.945 -530.9075 0.002 0.002 0.628 0.392 0.0084 0.063 0.074 2012 4 18 56035 -4.224 347.160 -532.2220 0.002 0.002 0.557 0.382 0.0062 0.063 0.074 2012 4 19 56036 -3.437 349.521 -533.5068 0.002 0.002 0.371 0.296 0.0068 0.063 0.074 2012 4 20 56037 -2.825 351.967 -534.7309 0.002 0.002 0.354 0.201 0.0108 0.063 0.074 2012 4 21 56038 -2.349 354.200 -535.8604 0.002 0.002 0.477 0.258 0.0087 0.063 0.074 2012 4 22 56039 -1.463 356.005 -536.8881 0.002 0.002 0.636 0.401 0.0054 0.063 0.074 2012 4 23 56040 -0.254 357.970 -537.8142 0.002 0.002 0.583 0.420 0.0095 0.063 0.074 2012 4 24 56041 0.689 359.959 -538.6414 0.002 0.002 0.468 0.401 0.0114 0.063 0.074 2012 4 25 56042 1.394 361.778 -539.4095 0.002 0.002 0.434 0.450 0.0061 0.063 0.074 2012 4 26 56043 2.198 363.412 -540.1527 0.002 0.002 0.412 0.377 0.0063 0.063 0.074 2012 4 27 56044 3.383 364.828 -540.9070 0.002 0.002 0.370 0.445 0.0095 0.063 0.074 2012 4 28 56045 4.388 366.246 -541.6866 0.002 0.002 0.465 0.571 0.0075 0.063 0.074 2012 4 29 56046 5.307 367.430 -542.5549 0.002 0.002 0.486 0.582 0.0357 0.063 0.074 2012 4 30 56047 6.243 368.851 -543.6124 0.002 0.002 1.120 1.234 0.0980 0.063 0.074 2012 5 1 56048 7.012 370.526 -544.8969 0.002 0.002 1.839 1.829 0.0555 0.063 0.074 2 - DAILY FINAL VALUES OF CELESTIAL POLE OFFSETS dPsi1980 & dEps1980 dPsi1980 dEps1980 ....dPsi,dEps / IAU 1980 precession-nutation model Description : ftp://hpiers.obspm.fr/iers/bul/bulb_new/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 2012 3 2 55988 -70.932 -10.371 0.354 0.216 2012 3 3 55989 -70.970 -10.250 0.343 0.192 2012 3 4 55990 -70.983 -10.112 0.301 0.144 2012 3 5 55991 -70.883 -10.243 0.286 0.146 2012 3 6 55992 -70.723 -10.455 0.260 0.126 2012 3 7 55993 -70.413 -10.529 0.223 0.107 2012 3 8 55994 -70.091 -10.305 0.182 0.087 2012 3 9 55995 -69.995 -9.941 0.141 0.068 2012 3 10 55996 -70.203 -9.770 0.135 0.065 2012 3 11 55997 -70.524 -9.939 0.142 0.069 2012 3 12 55998 -70.703 -10.287 0.150 0.074 2012 3 13 55999 -70.680 -10.585 0.157 0.077 2012 3 14 56000 -70.593 -10.746 0.165 0.081 2012 3 15 56001 -70.551 -10.853 0.129 0.067 2012 3 16 56002 -70.625 -10.941 0.082 0.048 2012 3 17 56003 -70.713 -11.022 0.081 0.048 2012 3 18 56004 -70.676 -11.058 0.098 0.056 2012 3 19 56005 -70.509 -11.020 0.114 0.064 2012 3 20 56006 -70.350 -10.905 0.130 0.071 2012 3 21 56007 -70.283 -10.736 0.119 0.066 2012 3 22 56008 -70.261 -10.623 0.101 0.057 2012 3 23 56009 -70.228 -10.657 0.082 0.048 2012 3 24 56010 -70.034 -10.870 0.077 0.045 2012 3 25 56011 -69.791 -11.147 0.078 0.045 2012 3 26 56012 -69.449 -11.395 0.076 0.043 2012 3 27 56013 -69.090 -11.610 0.075 0.042 2012 3 28 56014 -69.008 -11.905 0.107 0.058 2012 3 29 56015 -69.165 -12.207 0.143 0.076 2012 3 30 56016 -69.447 -12.356 0.180 0.093 2012 3 31 56017 -69.494 -12.188 0.192 0.103 2012 4 1 56018 -69.294 -11.868 0.194 0.111 3 - EARTH ANGULAR VELOCITY : DAILY FINAL 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_new/bulletinb.pdf DATE MJD LOD sigma OMEGA sigma (0 h UTC) ms ms mas/ms mas/ms 2012 3 2 55988 0.2932 0.0022 15.04106712763 0.00000000038 2012 3 3 55989 0.3928 0.0022 15.04106711029 0.00000000038 2012 3 4 55990 0.5434 0.0022 15.04106708407 0.00000000038 2012 3 5 55991 0.7031 0.0021 15.04106705627 0.00000000037 2012 3 6 55992 0.9276 0.0021 15.04106701719 0.00000000037 2012 3 7 55993 1.1170 0.0021 15.04106698422 0.00000000037 2012 3 8 55994 1.2909 0.0021 15.04106695394 0.00000000037 2012 3 9 55995 1.4230 0.0021 15.04106693095 0.00000000037 2012 3 10 55996 1.4563 0.0021 15.04106692515 0.00000000037 2012 3 11 55997 1.4503 0.0021 15.04106692619 0.00000000037 2012 3 12 55998 1.2916 0.0023 15.04106695382 0.00000000040 2012 3 13 55999 1.1775 0.0023 15.04106697368 0.00000000040 2012 3 14 56000 1.1305 0.0022 15.04106698187 0.00000000038 2012 3 15 56001 1.1365 0.0022 15.04106698082 0.00000000038 2012 3 16 56002 1.2366 0.0022 15.04106696340 0.00000000038 2012 3 17 56003 1.3827 0.0022 15.04106693796 0.00000000038 2012 3 18 56004 1.4974 0.0022 15.04106691799 0.00000000038 2012 3 19 56005 1.5768 0.0023 15.04106690417 0.00000000040 2012 3 20 56006 1.5941 0.0023 15.04106690116 0.00000000040 2012 3 21 56007 1.5507 0.0022 15.04106690871 0.00000000038 2012 3 22 56008 1.4646 0.0022 15.04106692370 0.00000000038 2012 3 23 56009 1.3760 0.0022 15.04106693913 0.00000000038 2012 3 24 56010 1.3061 0.0022 15.04106695130 0.00000000038 2012 3 25 56011 1.2063 0.0018 15.04106696867 0.00000000031 2012 3 26 56012 1.1041 0.0015 15.04106698646 0.00000000026 2012 3 27 56013 1.0361 0.0015 15.04106699830 0.00000000026 2012 3 28 56014 1.0024 0.0015 15.04106700417 0.00000000026 2012 3 29 56015 0.9960 0.0015 15.04106700528 0.00000000026 2012 3 30 56016 1.0312 0.0015 15.04106699915 0.00000000026 2012 3 31 56017 1.1621 0.0015 15.04106697636 0.00000000026 2012 4 1 56018 1.3212 0.0018 15.04106694867 0.00000000031 4 - INFORMATION ON TIME SCALES TAI - UTC = 34 s. No leap second introduced during period [55988-56018] All information concerning time scales : - leap seconds announcements : Bulletin C - DUT1 announcements (UT1-UTC with 0.1 s 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 1 152 130 6 - 109 112 9 55988.27 to 56016.27 298 612 18 - 205 238 BKG 8 R 2 121 115 4 - 71 62 9 55988.27 to 56016.27 158 230 6 - 95 48 GSFC 9 R 4 184 148 7 22 107 94 10 55988.27 to 56016.27 335 234 7 19 106 100 IAA 5 R 2 83 87 4 - 62 63 9 55988.27 to 56016.27 119 163 8 - 107 114 IAA 5 R 2 83 87 4 - 62 63 9 55988.27 to 56016.27 119 163 8 - 107 114 USNO 10 R 1 122 114 4 - 91 86 9 55988.27 to 56016.27 187 91 6 - 42 66 MAO 3 R 1 103 99 4 - 58 56 9 55988.29 to 56016.25 55 124 10 - 79 122 IVS 2 R 1 * 61 61 3 - 20 51 9 55988.27 to 56016.27 79 198 1 - 9 5 VLBI Intensive BKG 3 R 2 * - - 13 - - - 26 55988.80 to 56017.27 - - 19 - - - GSFC 9 R 2 * - - 13 - - - 26 55988.80 to 56017.27 - - 19 - - - IAA 5 R 1 * - - 12 - - - 23 55989.27 to 56017.27 - - 21 - - - PUL 10 R 0 - - 23 - - - 26 55988.80 to 56017.27 - - 17 - - - USNO 5 R 1 * - - 12 - - - 26 55988.80 to 56017.27 - - 19 - - - GPS CODE 98 P 1 5 5 - 2 - - 30 55988.50 to 56017.50 24 24 - 10 - - JPL 96 P 3 8 8 - 7 - - 30 55988.50 to 56017.50 38 41 - 12 - - GFZ 96 P 2 5 5 - 1 - - 30 55988.50 to 56017.50 37 31 - 10 - - ESOC 96 P 1 16 14 - 1 - - 30 55988.50 to 56017.50 54 39 - 15 - - NOAA 96 P 1 2 3 - 0 - - 30 55988.50 to 56017.50 45 68 - 8 - - SIO 96 P 1 16 16 - 5 - - 30 55988.50 to 56017.50 36 39 - 19 - - EMR 96 P 3 31 32 - 6 - - 30 55988.50 to 56017.50 50 39 - 14 - - IAA 1 P 1 28 39 - 7 - - 30 55988.50 to 56017.50 96 225 - 35 - - IGR 96 P 2 * 24 18 - 4 - - 30 55988.50 to 56017.50 25 33 - 8 - - IGS 7 P 1 * 5 5 - 0 - - 30 55988.50 to 56017.50 24 26 - 9 - - SLR MCC 97 L 1 150 151 - 21 - - 26 55988.00 to 56018.00 84 179 - 141 - - IAA 2 L 1 42 45 - 2 - - 31 55988.00 to 56018.00 147 177 - 16 - - CGS 3 L 2 72 72 - 16 - - 30 55988.50 to 56017.50 150 234 - 42 - - PUL 10 L 0 35 35 - 2 - - 30 55988.13 to 56017.39 110 87 - 15 - - ILRS 5 L 1 * 51 52 - 10 - - 30 55988.50 to 56017.50 161 215 - 33 - - BULLETIN A NEOS 97 C 1 33 31 6 - - - 31 55988.00 to 56018.00 25 28 12 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html