BULLETIN B 361 2 March 2018 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 March 1 2017 - consistent with ITRF 2014. 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 0.065 0.039 0.0305 0.053 0.160 2018 1 2 58120 57.406 248.566 215.6106 0.098 -0.030 0.076 0.046 0.0392 0.209 0.233 2018 1 3 58121 55.667 249.547 214.8671 0.102 -0.035 0.076 0.045 0.0460 0.173 0.195 2018 1 4 58122 54.388 250.409 214.0584 0.206 -0.069 0.077 0.045 0.0371 0.151 0.173 2018 1 5 58123 53.497 251.568 213.1828 0.335 -0.111 0.075 0.045 0.0240 0.132 0.155 2018 1 6 58124 52.593 252.938 212.2901 0.360 -0.121 0.076 0.045 0.0231 0.141 0.173 2018 1 7 58125 50.970 254.226 211.4238 0.347 -0.119 0.080 0.046 0.0267 0.161 0.204 2018 1 8 58126 49.223 255.002 210.6239 0.333 -0.117 0.080 0.046 0.0400 0.181 0.235 2018 1 9 58127 47.987 255.808 209.9278 0.319 -0.114 0.080 0.046 0.0581 0.201 0.266 2018 1 10 58128 46.686 257.130 209.3798 0.249 -0.116 0.076 0.045 0.0576 0.177 0.231 2018 1 11 58129 45.008 258.580 208.9311 0.165 -0.118 0.077 0.046 0.0479 0.142 0.179 2018 1 12 58130 43.355 259.855 208.5176 0.081 -0.121 0.034 0.028 0.0252 0.120 0.132 2018 1 13 58131 41.402 260.606 208.2845 0.067 -0.127 0.046 0.030 0.0191 0.109 0.120 2018 1 14 58132 39.860 260.774 208.1715 0.079 -0.135 0.035 0.031 0.0192 0.109 0.124 2018 1 15 58133 38.639 261.182 208.1143 0.091 -0.142 0.035 0.025 0.0245 0.109 0.127 2018 1 16 58134 37.810 261.913 208.0778 0.103 -0.150 0.035 0.022 0.0324 0.109 0.130 2018 1 17 58135 37.169 263.221 208.0112 0.129 -0.143 0.034 0.023 0.0327 0.116 0.135 2018 1 18 58136 36.146 264.989 207.8806 0.158 -0.132 0.033 0.024 0.0310 0.125 0.139 2018 1 19 58137 34.752 266.831 207.6571 0.188 -0.122 0.033 0.021 0.0293 0.134 0.144 2018 1 20 58138 32.747 268.633 207.3152 0.201 -0.119 0.039 0.022 0.0229 0.125 0.134 2018 1 21 58139 30.561 270.346 206.8073 0.208 -0.118 0.084 0.046 0.0279 0.108 0.118 2018 1 22 58140 28.673 272.074 206.1308 0.215 -0.118 0.084 0.046 0.0261 0.092 0.103 2018 1 23 58141 27.382 273.710 205.3131 0.221 -0.118 0.075 0.045 0.0177 0.076 0.087 2018 1 24 58142 26.020 275.534 204.4217 0.208 -0.143 0.068 0.043 0.0215 0.097 0.115 2018 1 25 58143 24.135 277.385 203.4601 0.190 -0.174 0.070 0.044 0.0263 0.129 0.155 2018 1 26 58144 22.368 279.089 202.4315 0.172 -0.205 0.073 0.044 0.0223 0.160 0.195 2018 1 27 58145 20.854 280.617 201.4806 0.183 -0.215 0.079 0.045 0.0229 0.158 0.193 2018 1 28 58146 19.329 281.817 200.5803 0.205 -0.217 0.083 0.046 0.0229 0.143 0.176 2018 1 29 58147 18.285 282.882 199.6906 0.227 -0.220 0.079 0.046 0.0247 0.128 0.159 2018 1 30 58148 17.687 284.477 198.7597 0.249 -0.222 0.074 0.045 0.0279 0.113 0.142 2018 1 31 58149 16.673 286.200 197.7182 0.223 -0.233 0.075 0.045 0.0336 0.118 0.143 2018 2 1 58150 15.361 288.259 196.5014 0.184 -0.247 0.078 0.045 0.0367 0.129 0.148 Preliminary extension 2018 2 2 58151 14.075 290.191 195.0891 0.145 -0.261 0.077 0.045 0.0275 0.139 0.154 2018 2 3 58152 12.449 291.708 193.5058 0.129 -0.265 0.080 0.046 0.0281 0.134 0.149 2018 2 4 58153 10.616 293.295 191.8256 0.121 -0.266 0.084 0.046 0.0242 0.123 0.140 2018 2 5 58154 8.245 295.393 190.1446 0.113 -0.266 0.090 0.052 0.0261 0.111 0.131 2018 2 6 58155 6.639 296.652 188.5543 0.105 -0.267 0.092 0.056 0.0328 0.100 0.122 2018 2 7 58156 6.172 297.839 187.1355 0.091 -0.265 0.083 0.050 0.0259 0.109 0.128 2018 2 8 58157 5.610 299.603 185.8943 0.075 -0.263 0.075 0.045 0.0185 0.123 0.138 2018 2 9 58158 4.638 301.400 184.7990 0.060 -0.262 0.072 0.045 0.0235 0.137 0.149 2018 2 10 58159 4.116 303.125 183.9239 0.000 0.000 0.074 0.045 0.0304 0.148 0.145 2018 2 11 58160 3.516 305.149 183.1411 0.075 -0.258 0.041 0.028 0.0259 0.094 0.101 2018 2 12 58161 3.313 307.209 182.3777 0.087 -0.256 0.041 0.029 0.0163 0.066 0.071 2018 2 13 58162 2.998 309.320 181.6292 0.098 -0.254 0.044 0.024 0.0072 0.039 0.042 2018 2 14 58163 2.578 311.244 180.8781 0.000 0.000 0.040 0.027 0.0332 0.104 0.089 2018 2 15 58164 1.930 313.249 180.0416 0.000 0.000 0.036 0.024 0.0198 0.122 0.103 2018 2 16 58165 1.387 315.055 179.1752 0.000 0.000 0.026 0.017 0.0272 0.122 0.103 2018 2 17 58166 1.144 316.440 178.2013 0.000 0.000 0.030 0.019 0.0301 0.122 0.103 2018 2 18 58167 0.701 317.972 177.1504 0.000 0.000 0.043 0.025 0.0191 0.122 0.103 2018 2 19 58168 0.901 319.554 175.9932 0.000 0.000 0.038 0.032 0.0147 0.122 0.103 2018 2 20 58169 1.163 321.701 174.8222 0.000 0.000 0.033 0.029 0.0195 0.122 0.103 2018 2 21 58170 2.003 324.329 173.6774 0.000 0.000 0.040 0.027 0.0271 0.122 0.103 2018 2 22 58171 2.455 326.991 172.5787 0.000 0.000 0.050 0.035 0.0278 0.122 0.103 2018 2 23 58172 2.705 329.167 171.5614 0.000 0.000 0.044 0.035 0.0248 0.122 0.103 2018 2 24 58173 2.452 331.734 170.6427 0.000 0.000 0.035 0.030 0.0272 0.122 0.103 2018 2 25 58174 2.061 333.876 169.8277 0.000 0.000 0.038 0.027 0.0193 0.122 0.103 2018 2 26 58175 1.295 336.048 169.0429 0.000 0.000 0.040 0.029 0.0110 0.122 0.103 2018 2 27 58176 0.363 337.948 168.2502 0.000 0.000 0.030 0.032 0.0175 0.122 0.103 2018 2 28 58177 -0.416 339.613 167.3810 0.000 0.000 0.037 0.041 0.0885 0.122 0.103 2018 3 1 58178 -0.222 341.440 166.3817 0.000 0.000 0.046 0.045 0.0885 0.122 0.103 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 2018 1 2 58120 -105.198 -8.190 0.525 0.233 2018 1 3 58121 -104.797 -8.062 0.435 0.195 2018 1 4 58122 -103.894 -7.933 0.380 0.173 2018 1 5 58123 -102.973 -7.979 0.332 0.155 2018 1 6 58124 -102.591 -8.074 0.354 0.173 2018 1 7 58125 -102.661 -8.030 0.405 0.204 2018 1 8 58126 -102.926 -7.855 0.455 0.235 2018 1 9 58127 -103.125 -7.737 0.505 0.266 2018 1 10 58128 -103.358 -7.795 0.445 0.231 2018 1 11 58129 -103.699 -7.942 0.357 0.179 2018 1 12 58130 -104.179 -8.050 0.302 0.132 2018 1 13 58131 -104.437 -8.108 0.274 0.120 2018 1 14 58132 -104.385 -8.189 0.274 0.124 2018 1 15 58133 -104.105 -8.311 0.274 0.127 2018 1 16 58134 -103.764 -8.404 0.274 0.130 2018 1 17 58135 -103.452 -8.395 0.292 0.135 2018 1 18 58136 -103.225 -8.337 0.314 0.139 2018 1 19 58137 -103.095 -8.313 0.337 0.144 2018 1 20 58138 -103.114 -8.342 0.314 0.134 2018 1 21 58139 -103.217 -8.369 0.271 0.118 2018 1 22 58140 -103.323 -8.374 0.231 0.103 2018 1 23 58141 -103.408 -8.402 0.191 0.087 2018 1 24 58142 -103.510 -8.501 0.244 0.115 2018 1 25 58143 -103.569 -8.579 0.324 0.155 2018 1 26 58144 -103.637 -8.541 0.402 0.195 2018 1 27 58145 -103.849 -8.431 0.397 0.193 2018 1 28 58146 -104.367 -8.435 0.359 0.176 2018 1 29 58147 -104.971 -8.610 0.322 0.159 2018 1 30 58148 -105.208 -8.781 0.284 0.142 2018 1 31 58149 -104.977 -8.811 0.297 0.143 2018 2 1 58150 -104.358 -8.786 0.324 0.148 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 2018 1 2 58120 0.7355 0.0140 15.04106705063 0.00000000244 2018 1 3 58121 0.7464 0.0131 15.04106704873 0.00000000228 2018 1 4 58122 0.8484 0.0131 15.04106703098 0.00000000228 2018 1 5 58123 0.8848 0.0130 15.04106702464 0.00000000226 2018 1 6 58124 0.8868 0.0141 15.04106702429 0.00000000245 2018 1 7 58125 0.8519 0.0141 15.04106703037 0.00000000245 2018 1 8 58126 0.7565 0.0141 15.04106704697 0.00000000245 2018 1 9 58127 0.6126 0.0142 15.04106707202 0.00000000247 2018 1 10 58128 0.5072 0.0131 15.04106709037 0.00000000228 2018 1 11 58129 0.4246 0.0131 15.04106710475 0.00000000228 2018 1 12 58130 0.3018 0.0074 15.04106712613 0.00000000129 2018 1 13 58131 0.1676 0.0080 15.04106714949 0.00000000139 2018 1 14 58132 0.0794 0.0066 15.04106716485 0.00000000115 2018 1 15 58133 0.0335 0.0062 15.04106717284 0.00000000108 2018 1 16 58134 0.0282 0.0067 15.04106717376 0.00000000117 2018 1 17 58135 0.0780 0.0075 15.04106716509 0.00000000131 2018 1 18 58136 0.1477 0.0079 15.04106715296 0.00000000138 2018 1 19 58137 0.2862 0.0078 15.04106712885 0.00000000136 2018 1 20 58138 0.4294 0.0073 15.04106710392 0.00000000127 2018 1 21 58139 0.5816 0.0151 15.04106707742 0.00000000263 2018 1 22 58140 0.7365 0.0142 15.04106705046 0.00000000247 2018 1 23 58141 0.8646 0.0138 15.04106702816 0.00000000240 2018 1 24 58142 0.9242 0.0139 15.04106701778 0.00000000242 2018 1 25 58143 0.9919 0.0136 15.04106700599 0.00000000237 2018 1 26 58144 1.0033 0.0138 15.04106700401 0.00000000240 2018 1 27 58145 0.9575 0.0147 15.04106701198 0.00000000256 2018 1 28 58146 0.8819 0.0153 15.04106702514 0.00000000266 2018 1 29 58147 0.8948 0.0149 15.04106702290 0.00000000259 2018 1 30 58148 0.9819 0.0139 15.04106700773 0.00000000242 2018 1 31 58149 1.1142 0.0137 15.04106698470 0.00000000238 2018 2 1 58150 1.2977 0.0146 15.04106695276 0.00000000254 4 - INFORMATION ON TIME SCALES TAI - UTC = 37 s. during period [58120-58150] No leap second introduced during period [58120-58150] 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 aus00007.eops 51 57 3 - 18 51 8 58121.21 to 58148.21 317 297 23 - 105 101 BKG bkg00014.eops 49 63 3 - 10 30 9 58121.21 to 58148.21 32 53 14 - 65 52 GSFC gsf2016a.eoxy 39 43 2 6 9 27 9 58121.21 to 58148.21 40 57 13 15 61 51 IAA iaa2007a.eops 44 49 3 - 13 35 9 58121.21 to 58148.21 76 59 12 - 69 87 USNO usn2017b.eoxy 29 32 2 - 11 31 9 58121.21 to 58148.21 49 41 14 - 54 59 IVS * ivs14r1X.eops 16 15 1 - 4 15 9 58121.21 to 58148.21 50 59 14 - 12 4 VLBI Intensive BKG * bkgint14.eopi - - 13 - - - 30 58120.79 to 58149.79 - - 20 - - - GSFC * gsf2016a.eopi - - 10 - - - 30 58120.79 to 58149.79 - - 18 - - - IAA * iaa2005a.eopi - - 12 - - - 30 58120.79 to 58149.79 - - 17 - - - PUL pul2010a.eopi - - 11 - - - 30 58120.79 to 58149.79 - - 20 - - - USNO * usn2017b.eopi - - 12 - - - 71 58120.79 to 58149.79 - - 60 - - - GPS CODE COD*ERP_R 5 5 - 1 - - 18 58132.50 to 58149.50 51 36 - 9 - - JPL jpl*.erp 11 13 - 5 - - 30 58120.50 to 58149.50 58 25 - 13 - - GFZ gfz*.erp 1 2 - 0 - - 241 58120.00 to 58150.00 341 650 - 105 - - ESOC esa*.erp 8 8 - 3 - - 30 58120.50 to 58149.50 40 22 - 9 - - NOAA ngs*.erp 2 2 - 0 - - 19 58120.50 to 58138.50 44 44 - 10 - - SIO sio*.erp siu*.erp 61 66 - 17 - - 23 58120.50 to 58149.50 60 44 - 16 - - EMR emr*.erp 3 3 - 0 - - 26 58120.50 to 58149.50 57 38 - 9 - - IAA gnss.res 4 4 - 0 - - 30 58120.50 to 58149.50 88 63 - 18 - - GRGS grg*.erp 47 47 - 0 - - 30 58120.50 to 58149.50 42 28 - 7 - - ASI asi*.erp 7 7 - 0 - - 29 58120.50 to 58149.50 50 48 - 38 - - MIT mit*.erp 13 12 - 1 - - 30 58120.50 to 58149.50 44 26 - 10 - - IGR * igs96p02.erp 12 10 - 2 - - 30 58120.50 to 58149.50 34 22 - 8 - - IGS * igs00p03.erp 4 4 - 0 - - 30 58120.50 to 58149.50 45 17 - 9 - - SLR MCC tg*.02 195 195 - 22 - - 26 58125.00 to 58150.00 187 115 - 100 - - IAA slr_v.dat 65 65 - 4 - - 31 58120.00 to 58150.00 227 217 - 19 - - ASI asi*.eop 94 80 - 16 - - 30 58120.50 to 58149.50 227 176 - 51 - - ILRS * ilrsa.eop 65 57 - 8 - - 30 58120.50 to 58149.50 113 125 - 20 - - BULLETIN A NEOS mark3.out 21 15 9 - - - 31 58120.00 to 58150.00 52 42 14 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html