BULLETIN B 279 1 May 2011 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 0.047 0.050 0.0071 0.042 0.105 2011 3 2 55622 -0.704 229.376 -179.1860 0.120 -0.258 0.048 0.052 0.0048 0.029 0.072 2011 3 3 55623 -1.818 230.519 -180.0841 0.035 -0.197 0.048 0.052 0.0077 0.036 0.091 2011 3 4 55624 -2.620 231.967 -181.1598 -0.050 -0.141 0.049 0.053 0.0025 0.043 0.109 2011 3 5 55625 -3.077 233.518 -182.3075 -0.052 -0.168 0.049 0.053 0.0059 0.039 0.099 2011 3 6 55626 -3.417 235.516 -183.5123 -0.019 -0.230 0.050 0.053 0.0100 0.031 0.079 2011 3 7 55627 -4.515 237.514 -184.6863 0.017 -0.295 0.047 0.053 0.0075 0.023 0.057 2011 3 8 55628 -5.789 238.959 -185.7529 0.052 -0.350 0.047 0.054 0.0015 0.015 0.037 2011 3 9 55629 -6.960 240.529 -186.7184 0.097 -0.370 0.049 0.054 0.0090 0.018 0.044 2011 3 10 55630 -7.841 242.328 -187.6065 0.137 -0.372 0.050 0.055 0.0106 0.023 0.058 2011 3 11 55631 -8.881 244.267 -188.4108 0.168 -0.362 0.050 0.055 0.0029 0.028 0.071 2011 3 12 55632 -10.363 246.240 -189.1028 0.110 -0.331 0.050 0.054 0.0082 0.032 0.080 2011 3 13 55633 -11.733 248.001 -189.7047 0.018 -0.287 0.048 0.052 0.0132 0.035 0.088 2011 3 14 55634 -13.523 249.683 -190.2970 -0.071 -0.198 0.044 0.048 0.0110 0.038 0.095 2011 3 15 55635 -15.254 250.627 -191.0269 -0.159 -0.146 0.044 0.047 0.0067 0.041 0.102 2011 3 16 55636 -16.831 251.698 -191.9978 -0.238 -0.106 0.047 0.048 0.0020 0.044 0.110 2011 3 17 55637 -18.329 253.080 -193.2124 -0.157 -0.151 0.048 0.048 0.0012 0.040 0.100 2011 3 18 55638 -19.569 254.453 -194.6472 -0.026 -0.225 0.047 0.046 0.0015 0.034 0.086 2011 3 19 55639 -20.653 256.012 -196.2361 -0.001 -0.273 0.047 0.047 0.0083 0.032 0.080 2011 3 20 55640 -21.683 257.719 -197.8561 -0.014 -0.307 0.048 0.049 0.0149 0.031 0.077 2011 3 21 55641 -22.802 259.782 -199.3772 -0.025 -0.325 0.045 0.048 0.0121 0.029 0.072 2011 3 22 55642 -24.452 261.808 -200.7260 -0.041 -0.343 0.045 0.048 0.0029 0.027 0.069 2011 3 23 55643 -25.756 263.473 -201.8511 -0.042 -0.328 0.048 0.050 0.0073 0.027 0.068 2011 3 24 55644 -26.856 265.302 -202.7735 -0.042 -0.296 0.047 0.047 0.0113 0.026 0.066 2011 3 25 55645 -27.226 267.059 -203.5840 -0.046 -0.256 0.046 0.047 0.0034 0.025 0.064 2011 3 26 55646 -27.502 268.968 -204.4191 -0.031 -0.231 0.046 0.048 0.0083 0.022 0.056 2011 3 27 55647 -28.458 270.788 -205.3152 -0.008 -0.209 0.047 0.047 0.0155 0.019 0.047 2011 3 28 55648 -29.388 272.652 -206.3423 0.031 -0.165 0.045 0.047 0.0125 0.022 0.056 2011 3 29 55649 -30.322 274.328 -207.5319 0.056 -0.140 0.045 0.047 0.0027 0.022 0.055 2011 3 30 55650 -30.950 275.776 -208.8404 0.026 -0.124 0.049 0.050 0.0054 0.123 0.308 2011 3 31 55651 -31.761 277.479 -210.2397 -0.020 -0.120 0.050 0.050 0.0085 0.249 0.626 2011 4 1 55652 -33.078 279.086 -211.7082 -0.064 -0.073 0.050 0.050 0.0023 0.094 0.237 Preliminary extension 2011 4 2 55653 -34.729 280.642 -213.2020 -0.067 -0.099 0.050 0.051 0.0098 0.026 0.066 2011 4 3 55654 -36.200 281.946 -214.6833 -0.051 -0.164 0.046 0.048 0.0133 0.027 0.069 2011 4 4 55655 -37.491 283.616 -216.0556 -0.033 -0.226 0.042 0.045 0.0131 0.029 0.073 2011 4 5 55656 -39.366 285.432 -217.2522 -0.012 -0.282 0.043 0.045 0.0139 0.031 0.077 2011 4 6 55657 -41.398 287.007 -218.3247 0.009 -0.324 0.045 0.046 0.0129 0.032 0.081 2011 4 7 55658 -42.416 288.703 -219.2632 0.029 -0.351 0.045 0.046 0.0166 0.034 0.085 2011 4 8 55659 -42.959 290.935 -219.9908 0.046 -0.363 0.044 0.046 0.0041 0.035 0.088 2011 4 9 55660 -43.365 293.412 -220.7431 -0.004 0.019 0.045 0.046 0.0071 0.035 0.088 2011 4 10 55661 -43.332 295.700 -221.5137 -0.005 0.020 0.045 0.045 0.0140 0.035 0.088 2011 4 11 55662 -43.603 297.668 -222.3394 -0.004 0.020 0.043 0.044 0.0133 0.035 0.088 2011 4 12 55663 -43.929 299.594 -223.3214 -0.005 0.020 0.044 0.045 0.0110 0.035 0.088 2011 4 13 55664 -44.055 301.837 -224.4765 -0.005 0.019 0.043 0.044 0.0131 0.035 0.088 2011 4 14 55665 -44.189 304.194 -225.8100 -0.005 0.019 0.041 0.043 0.0105 0.035 0.088 2011 4 15 55666 -44.068 306.689 -227.2997 -0.005 0.019 0.042 0.043 0.0141 0.035 0.088 2011 4 16 55667 -43.888 309.379 -228.9245 -0.005 0.020 0.043 0.044 0.0135 0.035 0.088 2011 4 17 55668 -44.048 311.958 -230.5872 -0.005 0.019 0.083 0.081 0.0129 0.035 0.088 2011 4 18 55669 -44.222 314.366 -232.1204 -0.005 0.020 0.186 0.123 0.0165 0.035 0.088 2011 4 19 55670 -44.471 316.343 -233.4624 -0.005 0.019 0.224 0.156 0.0165 0.035 0.088 2011 4 20 55671 -44.632 318.431 -234.5423 -0.005 0.020 0.197 0.156 0.0072 0.035 0.088 2011 4 21 55672 -44.895 320.423 -235.3958 -0.005 0.019 0.155 0.160 0.0078 0.035 0.088 2011 4 22 55673 -45.069 322.230 -236.1387 -0.005 0.020 0.174 0.156 0.0084 0.035 0.088 2011 4 23 55674 -45.206 323.953 -236.8933 -0.005 0.020 0.170 0.112 0.0101 0.035 0.088 2011 4 24 55675 -45.837 325.833 -237.7018 -0.005 0.020 0.114 0.110 0.0177 0.035 0.088 2011 4 25 55676 -46.154 327.527 -238.5736 -0.005 0.020 0.125 0.169 0.0177 0.035 0.088 2011 4 26 55677 -46.025 329.234 -239.5322 -0.005 0.020 0.106 0.196 0.0137 0.035 0.088 2011 4 27 55678 -45.678 331.318 -240.5594 -0.005 0.019 0.162 0.182 0.0331 0.035 0.088 2011 4 28 55679 -45.437 333.637 -241.6463 -0.004 0.020 0.249 0.187 0.0331 0.035 0.088 2011 4 29 55680 -45.358 335.783 -242.7421 0.001 0.002 1000.000 1000.000 1000.0000 397.800 1000.000 2011 4 30 55681 -45.322 337.875 -243.9478 0.001 0.002 1000.000 1000.000 1000.0000 397.800 1000.000 2011 5 1 55682 -45.150 339.867 -245.1671 0.001 0.002 1000.000 1000.000 1000.0000 397.800 1000.000 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 2011 3 2 55622 -67.169 -8.710 0.089 0.072 2011 3 3 55623 -67.132 -8.540 0.114 0.091 2011 3 4 55624 -67.101 -8.333 0.138 0.109 2011 3 5 55625 -66.927 -8.288 0.125 0.099 2011 3 6 55626 -66.766 -8.460 0.098 0.079 2011 3 7 55627 -66.652 -8.773 0.077 0.057 2011 3 8 55628 -66.484 -9.069 0.048 0.037 2011 3 9 55629 -66.176 -9.257 0.070 0.044 2011 3 10 55630 -65.887 -9.425 0.104 0.058 2011 3 11 55631 -65.838 -9.639 0.138 0.071 2011 3 12 55632 -66.258 -9.803 0.149 0.080 2011 3 13 55633 -66.821 -9.789 0.152 0.088 2011 3 14 55634 -67.242 -9.605 0.154 0.095 2011 3 15 55635 -67.478 -9.563 0.157 0.102 2011 3 16 55636 -67.487 -9.739 0.162 0.110 2011 3 17 55637 -66.870 -9.964 0.139 0.100 2011 3 18 55638 -66.088 -9.867 0.110 0.086 2011 3 19 55639 -65.849 -9.465 0.100 0.080 2011 3 20 55640 -66.060 -9.180 0.097 0.077 2011 3 21 55641 -66.364 -9.258 0.089 0.072 2011 3 22 55642 -66.555 -9.562 0.087 0.069 2011 3 23 55643 -66.573 -9.825 0.087 0.068 2011 3 24 55644 -66.474 -10.045 0.086 0.066 2011 3 25 55645 -66.265 -10.293 0.086 0.064 2011 3 26 55646 -66.043 -10.520 0.094 0.056 2011 3 27 55647 -66.083 -10.581 0.104 0.047 2011 3 28 55648 -66.339 -10.464 0.083 0.056 2011 3 29 55649 -66.533 -10.348 0.082 0.055 2011 3 30 55650 -66.491 -10.293 0.085 0.308 2011 3 31 55651 -66.187 -10.236 0.089 0.626 2011 4 1 55652 -65.869 -10.064 0.093 0.237 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 2011 3 2 55622 0.8056 0.0117 15.04106703843 0.00000000204 2011 3 3 55623 0.9737 0.0119 15.04106700916 0.00000000207 2011 3 4 55624 1.1142 0.0121 15.04106698470 0.00000000211 2011 3 5 55625 1.2007 0.0102 15.04106696964 0.00000000178 2011 3 6 55626 1.1822 0.0095 15.04106697287 0.00000000165 2011 3 7 55627 1.0802 0.0112 15.04106699062 0.00000000195 2011 3 8 55628 0.9945 0.0110 15.04106700554 0.00000000191 2011 3 9 55629 0.9050 0.0107 15.04106702112 0.00000000186 2011 3 10 55630 0.8217 0.0116 15.04106703562 0.00000000202 2011 3 11 55631 0.7474 0.0122 15.04106704856 0.00000000212 2011 3 12 55632 0.6381 0.0105 15.04106706759 0.00000000183 2011 3 13 55633 0.5735 0.0094 15.04106707883 0.00000000164 2011 3 14 55634 0.6395 0.0096 15.04106706734 0.00000000167 2011 3 15 55635 0.8488 0.0100 15.04106703091 0.00000000174 2011 3 16 55636 1.0868 0.0110 15.04106698947 0.00000000191 2011 3 17 55637 1.3544 0.0111 15.04106694289 0.00000000193 2011 3 18 55638 1.5283 0.0109 15.04106691261 0.00000000190 2011 3 19 55639 1.6170 0.0094 15.04106689717 0.00000000164 2011 3 20 55640 1.5891 0.0091 15.04106690203 0.00000000158 2011 3 21 55641 1.4605 0.0102 15.04106692442 0.00000000178 2011 3 22 55642 1.2215 0.0104 15.04106696602 0.00000000181 2011 3 23 55643 0.9586 0.0106 15.04106701179 0.00000000185 2011 3 24 55644 0.8171 0.0107 15.04106703642 0.00000000186 2011 3 25 55645 0.8379 0.0111 15.04106703280 0.00000000193 2011 3 26 55646 0.8689 0.0093 15.04106702741 0.00000000162 2011 3 27 55647 0.9447 0.0087 15.04106701421 0.00000000151 2011 3 28 55648 1.0940 0.0103 15.04106698822 0.00000000179 2011 3 29 55649 1.2438 0.0107 15.04106696214 0.00000000186 2011 3 30 55650 1.3635 0.0109 15.04106694130 0.00000000190 2011 3 31 55651 1.4331 0.0112 15.04106692919 0.00000000195 2011 4 1 55652 1.4785 0.0113 15.04106692128 0.00000000197 4 - INFORMATION ON TIME SCALES TAI - UTC = 34 s. No leap second introduced during period [55622-55652] 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 1 180 155 6 - 119 112 7 55624.27 to 55649.21 102 181 14 - 211 223 BKG 8 R 2 143 120 4 - 81 73 8 55624.27 to 55649.21 234 265 7 - 32 21 GSFC 9 R 4 132 112 4 12 79 73 8 55624.27 to 55649.21 259 217 5 18 52 23 IAA 5 R 2 89 88 4 - 64 63 8 55624.27 to 55649.21 356 338 19 - 154 65 SPBU 3 R 3 272 209 8 - 167 171 7 55624.27 to 55649.21 164 425 14 - 204 232 USNO 10 R 1 427 332 11 - 790 389 8 55624.27 to 55649.21 248 106 3 - 88 130 MAO 3 R 1 94 91 4 - 67 65 8 55624.30 to 55649.20 242 154 16 - 86 116 IVS 2 R 1 * 90 77 2 - 22 52 8 55624.27 to 55649.21 224 183 2 - 13 8 VLBI Intensive BKG 3 R 2 * - - 15 - - - 25 55622.79 to 55651.79 - - 22 - - - GSFC 9 R 2 * - - 16 - - - 26 55622.79 to 55651.79 - - 21 - - - IAA 5 R 1 * - - 15 - - - 23 55622.79 to 55651.79 - - 15 - - - PUL 10 R 0 - - 15 - - - 24 55622.79 to 55651.79 - - 19 - - - USNO 5 R 1 * - - 16 - - - 26 55622.79 to 55651.79 - - 22 - - - GPS CODE 98 P 1 4 4 - 2 - - 30 55622.50 to 55651.50 19 21 - 12 - - JPL 96 P 3 9 10 - 7 - - 30 55622.50 to 55651.50 47 37 - 13 - - GFZ 96 P 2 5 6 - 1 - - 30 55622.50 to 55651.50 30 32 - 14 - - ESOC 96 P 1 12 10 - 1 - - 30 55622.50 to 55651.50 43 51 - 12 - - NOAA 96 P 1 3 3 - 35 - - 30 55622.50 to 55651.50 73 68 - 12 - - SIO 96 P 1 14 14 - 4 - - 30 55622.50 to 55651.50 35 53 - 30 - - EMR 96 P 3 33 34 - 6 - - 30 55622.50 to 55651.50 36 32 - 10 - - IAA 1 P 1 30 35 - 6 - - 30 55622.50 to 55651.50 149 178 - 40 - - IGR 96 P 2 * 35 19 - 4 - - 30 55622.50 to 55651.50 27 30 - 8 - - IGS 7 P 1 * 30 29 - 7 - - 30 55622.50 to 55651.50 23 24 - 14 - - SLR MCC 97 L 1 160 170 - 16 - - 31 55622.00 to 55652.00 124 152 - 160 - - IAA 2 L 1 37 41 - 2 - - 31 55622.00 to 55652.00 160 206 - 16 - - ASI 3 L 2 74 78 - 18 - - 30 55622.50 to 55651.50 188 196 - 79 - - PUL 10 L 0 38 39 - 2 - - 31 55622.03 to 55651.51 188 128 - 21 - - ILRS 5 L 1 * 90 83 - 16 - - 18 55622.50 to 55639.50 139 133 - 37 - - BULLETIN A NEOS 97 C 1 52 48 8 - - - 31 55622.00 to 55652.00 36 27 14 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html