BULLETIN B 362 3 April 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 0.076 0.046 0.0248 0.045 0.125 2018 2 2 58151 14.067 290.203 195.0891 0.145 -0.261 0.077 0.045 0.0275 0.139 0.154 2018 2 3 58152 12.458 291.691 193.5058 0.129 -0.265 0.080 0.046 0.0281 0.134 0.149 2018 2 4 58153 10.601 293.313 191.8259 0.121 -0.265 0.084 0.046 0.0242 0.123 0.140 2018 2 5 58154 8.260 295.375 190.1450 0.113 -0.266 0.090 0.052 0.0261 0.111 0.131 2018 2 6 58155 6.624 296.675 188.5544 0.105 -0.267 0.092 0.056 0.0328 0.100 0.122 2018 2 7 58156 6.188 297.813 187.1353 0.091 -0.265 0.083 0.050 0.0259 0.109 0.128 2018 2 8 58157 5.592 299.623 185.8941 0.076 -0.264 0.075 0.045 0.0185 0.123 0.138 2018 2 9 58158 4.664 301.372 184.7988 0.060 -0.262 0.072 0.045 0.0235 0.137 0.149 2018 2 10 58159 4.091 303.167 183.9243 0.078 -0.274 0.074 0.045 0.0304 0.131 0.145 2018 2 11 58160 3.494 305.155 183.1436 0.108 -0.291 0.075 0.045 0.0258 0.117 0.135 2018 2 12 58161 3.276 307.207 182.3852 0.138 -0.309 0.074 0.045 0.0213 0.102 0.125 2018 2 13 58162 2.984 309.331 181.6261 0.169 -0.326 0.071 0.044 0.0197 0.088 0.116 2018 2 14 58163 2.565 311.263 180.8522 0.172 -0.319 0.070 0.044 0.0189 0.090 0.111 2018 2 15 58164 1.884 313.278 180.0326 0.168 -0.306 0.074 0.045 0.0185 0.096 0.108 2018 2 16 58165 1.348 315.040 179.1391 0.164 -0.293 0.070 0.045 0.0189 0.102 0.105 2018 2 17 58166 1.023 316.434 178.1970 0.161 -0.291 0.072 0.045 0.0211 0.105 0.110 2018 2 18 58167 0.643 317.986 177.1533 0.158 -0.293 0.078 0.046 0.0192 0.107 0.119 2018 2 19 58168 0.907 319.569 175.9989 0.156 -0.295 0.081 0.046 0.0245 0.109 0.128 2018 2 20 58169 1.162 321.719 174.7971 0.154 -0.297 0.080 0.050 0.0345 0.110 0.137 2018 2 21 58170 2.029 324.307 173.6556 0.147 -0.295 0.077 0.054 0.0326 0.119 0.139 2018 2 22 58171 2.404 327.028 172.5733 0.140 -0.292 0.074 0.049 0.0280 0.129 0.139 2018 2 23 58172 2.541 329.197 171.5338 0.133 -0.290 0.068 0.048 0.0249 0.139 0.139 2018 2 24 58173 2.347 331.740 170.6442 0.128 -0.276 0.072 0.049 0.0247 0.130 0.129 2018 2 25 58174 1.947 333.859 169.8219 0.125 -0.258 0.079 0.046 0.0241 0.115 0.114 2018 2 26 58175 1.247 336.071 169.0306 0.122 -0.240 0.079 0.046 0.0227 0.100 0.100 2018 2 27 58176 0.267 337.963 168.2351 0.119 -0.221 0.072 0.044 0.0214 0.085 0.086 2018 2 28 58177 -0.517 339.627 167.4081 0.137 -0.197 0.070 0.044 0.0256 0.105 0.102 2018 3 1 58178 -0.327 341.442 166.4612 0.162 -0.172 0.075 0.045 0.0313 0.136 0.127 Preliminary extension 2018 3 2 58179 1.120 343.723 165.3367 0.186 -0.146 0.074 0.045 0.0344 0.166 0.151 2018 3 3 58180 2.713 346.315 164.0375 0.210 -0.121 0.075 0.046 0.0315 0.196 0.176 2018 3 4 58181 3.975 349.022 162.8156 0.234 -0.095 0.083 0.051 0.0306 0.226 0.200 2018 3 5 58182 5.329 351.678 161.6044 0.258 -0.069 0.080 0.050 0.0374 0.257 0.225 2018 3 6 58183 6.530 354.274 160.4862 0.283 -0.044 0.070 0.043 0.0511 0.287 0.249 2018 3 7 58184 7.274 356.686 159.5098 0.227 -0.086 0.068 0.044 0.0373 0.256 0.225 2018 3 8 58185 7.639 358.793 158.6416 0.151 -0.145 0.064 0.043 0.0209 0.208 0.188 2018 3 9 58186 7.943 360.393 157.8278 0.074 -0.205 0.059 0.042 0.0222 0.161 0.150 2018 3 10 58187 8.374 361.629 157.1201 0.035 -0.214 0.068 0.043 0.0181 0.166 0.170 2018 3 11 58188 9.615 362.554 156.4091 0.009 -0.203 0.078 0.045 0.0199 0.191 0.211 2018 3 12 58189 11.423 363.969 155.6918 -0.017 -0.192 0.081 0.045 0.0418 0.216 0.251 2018 3 13 58190 12.950 365.538 154.9501 -0.042 -0.181 0.076 0.044 0.0718 0.241 0.292 2018 3 14 58191 13.945 367.366 154.1413 0.000 0.000 0.071 0.044 0.0697 0.168 0.175 2018 3 15 58192 14.551 369.270 153.2509 0.000 0.000 0.039 0.027 0.0591 0.111 0.114 2018 3 16 58193 14.811 371.254 152.2658 0.000 0.000 0.042 0.027 0.0473 0.111 0.114 2018 3 17 58194 14.930 373.047 151.1731 0.000 0.000 0.047 0.023 0.0311 0.111 0.114 2018 3 18 58195 14.957 374.494 150.0544 0.000 0.000 0.052 0.027 0.0257 0.111 0.114 2018 3 19 58196 15.601 375.874 148.8536 0.000 0.000 0.048 0.034 0.0169 0.111 0.114 2018 3 20 58197 16.849 377.479 147.5881 0.000 0.000 0.045 0.035 0.0137 0.111 0.114 2018 3 21 58198 17.760 378.805 146.3272 0.000 0.000 0.048 0.035 0.0212 0.111 0.114 2018 3 22 58199 19.233 379.683 145.1277 0.000 0.000 0.050 0.037 0.0398 0.111 0.114 2018 3 23 58200 20.909 380.991 144.0474 0.000 0.000 0.053 0.038 0.0483 0.111 0.114 2018 3 24 58201 22.248 382.587 143.1075 0.000 0.000 0.047 0.032 0.0308 0.111 0.114 2018 3 25 58202 23.435 384.210 142.2336 0.000 0.000 0.049 0.032 0.0398 0.111 0.114 2018 3 26 58203 24.423 385.506 141.3604 0.000 0.000 0.051 0.033 0.0193 0.111 0.114 2018 3 27 58204 25.715 386.412 140.4162 0.000 0.000 0.047 0.029 0.0121 0.111 0.114 2018 3 28 58205 26.988 387.411 139.3524 0.000 0.000 0.046 0.027 0.0186 0.111 0.114 2018 3 29 58206 28.183 388.977 138.1625 0.000 0.000 0.053 0.031 0.0264 0.111 0.114 2018 3 30 58207 29.456 390.763 136.8889 0.000 0.000 0.048 0.036 0.0377 0.111 0.114 2018 3 31 58208 31.068 392.610 135.4217 0.000 0.000 0.038 0.034 0.0676 0.111 0.114 2018 4 1 58209 32.298 394.538 134.0021 0.000 0.000 0.049 0.034 0.0617 0.111 0.114 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 2 2 58151 -103.684 -8.869 0.349 0.154 2018 2 3 58152 -103.241 -9.003 0.337 0.149 2018 2 4 58153 -103.223 -8.990 0.309 0.140 2018 2 5 58154 -103.525 -8.781 0.279 0.131 2018 2 6 58155 -103.869 -8.567 0.251 0.122 2018 2 7 58156 -104.136 -8.552 0.274 0.128 2018 2 8 58157 -104.405 -8.742 0.309 0.138 2018 2 9 58158 -104.725 -8.982 0.344 0.149 2018 2 10 58159 -104.835 -9.163 0.329 0.145 2018 2 11 58160 -104.599 -9.279 0.294 0.135 2018 2 12 58161 -104.107 -9.378 0.256 0.125 2018 2 13 58162 -103.601 -9.461 0.221 0.116 2018 2 14 58163 -103.310 -9.465 0.226 0.111 2018 2 15 58164 -103.148 -9.392 0.241 0.108 2018 2 16 58165 -103.040 -9.293 0.256 0.105 2018 2 17 58166 -103.026 -9.243 0.264 0.110 2018 2 18 58167 -103.153 -9.271 0.269 0.119 2018 2 19 58168 -103.341 -9.370 0.274 0.128 2018 2 20 58169 -103.464 -9.508 0.277 0.137 2018 2 21 58170 -103.503 -9.627 0.299 0.139 2018 2 22 58171 -103.528 -9.685 0.324 0.139 2018 2 23 58172 -103.626 -9.684 0.349 0.139 2018 2 24 58173 -103.818 -9.684 0.327 0.129 2018 2 25 58174 -104.062 -9.775 0.289 0.114 2018 2 26 58175 -104.252 -9.950 0.251 0.100 2018 2 27 58176 -104.254 -10.085 0.214 0.086 2018 2 28 58177 -103.954 -10.101 0.264 0.102 2018 3 1 58178 -103.462 -10.085 0.342 0.127 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 2 2 58151 1.5264 0.0149 15.04106691294 0.00000000259 2018 2 3 58152 1.6713 0.0152 15.04106688772 0.00000000265 2018 2 4 58153 1.6883 0.0154 15.04106688476 0.00000000268 2018 2 5 58154 1.6217 0.0161 15.04106689635 0.00000000280 2018 2 6 58155 1.4783 0.0166 15.04106692132 0.00000000289 2018 2 7 58156 1.3497 0.0153 15.04106694371 0.00000000266 2018 2 8 58157 1.1840 0.0152 15.04106697255 0.00000000265 2018 2 9 58158 0.9818 0.0154 15.04106700775 0.00000000268 2018 2 10 58159 0.8318 0.0147 15.04106703387 0.00000000256 2018 2 11 58160 0.7473 0.0140 15.04106704858 0.00000000244 2018 2 12 58161 0.7322 0.0143 15.04106705120 0.00000000249 2018 2 13 58162 0.7615 0.0148 15.04106704610 0.00000000258 2018 2 14 58163 0.7852 0.0145 15.04106704198 0.00000000252 2018 2 15 58164 0.8537 0.0155 15.04106703005 0.00000000270 2018 2 16 58165 0.9340 0.0156 15.04106701607 0.00000000272 2018 2 17 58166 1.0498 0.0157 15.04106699591 0.00000000273 2018 2 18 58167 1.1086 0.0166 15.04106698568 0.00000000289 2018 2 19 58168 1.1378 0.0167 15.04106698059 0.00000000291 2018 2 20 58169 1.1246 0.0163 15.04106698289 0.00000000284 2018 2 21 58170 1.1258 0.0151 15.04106698268 0.00000000263 2018 2 22 58171 1.0527 0.0145 15.04106699541 0.00000000252 2018 2 23 58172 0.9603 0.0146 15.04106701150 0.00000000254 2018 2 24 58173 0.8632 0.0155 15.04106702840 0.00000000270 2018 2 25 58174 0.7973 0.0157 15.04106703987 0.00000000273 2018 2 26 58175 0.7700 0.0150 15.04106704462 0.00000000261 2018 2 27 58176 0.8268 0.0145 15.04106703474 0.00000000252 2018 2 28 58177 0.9313 0.0145 15.04106701654 0.00000000252 2018 3 1 58178 1.0284 0.0152 15.04106699964 0.00000000265 4 - INFORMATION ON TIME SCALES TAI - UTC = 37 s. during period [58151-58178] No leap second introduced during period [58151-58178] 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 50 55 3 - 18 49 8 58151.27 to 58176.21 179 257 23 - 168 150 BKG bkg00014.eops 45 60 2 - 9 26 8 58151.27 to 58176.21 37 40 15 - 27 27 GSFC gsf2016a.eoxy 36 41 2 6 9 24 8 58151.27 to 58176.21 31 65 14 14 18 19 IAA iaa2007a.eops 34 40 2 - 11 28 8 58151.27 to 58176.21 56 143 14 - 51 46 USNO usn2018a.eoxy 26 30 2 - 10 28 8 58151.27 to 58176.21 33 70 14 - 20 31 IVS * ivs14r1X.eops 12 11 1 - 3 11 8 58151.27 to 58176.21 38 70 13 - 4 2 VLBI Intensive BKG * bkgint14.eopi - - 18 - - - 27 58151.80 to 58176.79 - - 22 - - - GSFC * gsf2016a.eopi - - 11 - - - 27 58151.80 to 58176.79 - - 21 - - - IAA * iaa2005a.eopi - - 11 - - - 27 58151.80 to 58176.79 - - 14 - - - PUL pul2010a.eopi - - 11 - - - 27 58151.80 to 58176.79 - - 23 - - - USNO * usn2018a.eopi - - 16 - - - 59 58151.14 to 58177.28 - - 56 - - - GPS CODE COD*ERP_R 6 6 - 1 - - 27 58151.50 to 58177.50 58 42 - 11 - - JPL jpl*.erp 11 12 - 7 - - 27 58151.50 to 58177.50 61 38 - 20 - - GFZ gfz*.erp 2 2 - 0 - - 209 58151.00 to 58178.00 214 195 - 35 - - ESOC esa*.erp 7 9 - 3 - - 27 58151.50 to 58177.50 52 39 - 13 - - NOAA ngs*.erp 2 2 - 0 - - 11 58167.50 to 58177.50 44 41 - 12 - - SIO sio*.erp siu*.erp 72 83 - 22 - - 23 58151.50 to 58177.50 88 54 - 28 - - EMR emr*.erp 2 3 - 1 - - 23 58151.50 to 58177.50 66 43 - 11 - - IAA gnss.res 4 4 - 0 - - 27 58151.50 to 58177.50 95 69 - 22 - - GRGS grg*.erp 47 47 - 0 - - 27 58151.50 to 58177.50 47 32 - 9 - - ASI asi*.erp 7 7 - 0 - - 27 58151.50 to 58177.50 60 36 - 29 - - MIT mit*.erp 14 13 - 1 - - 27 58151.50 to 58177.50 56 44 - 13 - - IGR * igs96p02.erp 11 11 - 3 - - 27 58151.50 to 58177.50 63 35 - 12 - - IGS * igs00p03.erp 4 4 - 0 - - 27 58151.50 to 58177.50 48 33 - 12 - - SLR MCC tg*.02 163 176 - 26 - - 28 58151.00 to 58178.00 123 126 - 91 - - IAA slr_v.dat 60 59 - 4 - - 27 58151.00 to 58178.00 210 214 - 21 - - ASI asi*.eop 81 77 - 16 - - 27 58151.50 to 58177.50 270 214 - 41 - - ILRS * ilrsa.eop 59 55 - 7 - - 27 58151.50 to 58177.50 117 127 - 23 - - BULLETIN A NEOS mark3.out 23 23 4 - - - 28 58151.00 to 58178.00 75 51 16 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html