BULLETIN B 363 1 May 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 0.073 0.045 0.0331 0.072 0.181 2018 3 2 58179 1.126 343.708 165.3369 0.186 -0.146 0.074 0.045 0.0344 0.166 0.151 2018 3 3 58180 2.712 346.327 164.0379 0.210 -0.121 0.075 0.046 0.0315 0.196 0.176 2018 3 4 58181 3.975 349.010 162.8160 0.234 -0.095 0.083 0.051 0.0306 0.226 0.200 2018 3 5 58182 5.332 351.687 161.6048 0.258 -0.069 0.080 0.050 0.0374 0.257 0.225 2018 3 6 58183 6.531 354.263 160.4862 0.283 -0.044 0.070 0.043 0.0511 0.287 0.249 2018 3 7 58184 7.274 356.696 159.5097 0.227 -0.086 0.068 0.044 0.0373 0.256 0.225 2018 3 8 58185 7.637 358.777 158.6415 0.151 -0.145 0.064 0.043 0.0209 0.208 0.188 2018 3 9 58186 7.944 360.408 157.8275 0.074 -0.205 0.059 0.042 0.0222 0.161 0.150 2018 3 10 58187 8.378 361.611 157.1205 0.035 -0.214 0.068 0.043 0.0181 0.166 0.170 2018 3 11 58188 9.615 362.571 156.4114 0.009 -0.203 0.078 0.045 0.0197 0.191 0.211 2018 3 12 58189 11.419 363.948 155.6961 -0.017 -0.192 0.081 0.045 0.0416 0.216 0.251 2018 3 13 58190 12.950 365.561 154.9516 -0.042 -0.182 0.076 0.044 0.0717 0.241 0.292 2018 3 14 58191 13.959 367.340 154.1247 -0.034 -0.216 0.071 0.044 0.0683 0.239 0.278 2018 3 15 58192 14.539 369.281 153.2160 -0.017 -0.262 0.073 0.044 0.0561 0.230 0.250 2018 3 16 58193 14.779 371.257 152.2279 0.000 -0.309 0.074 0.045 0.0438 0.221 0.222 2018 3 17 58194 14.886 373.052 151.1621 0.010 -0.300 0.077 0.045 0.0300 0.196 0.192 2018 3 18 58195 15.019 374.488 150.0554 0.018 -0.271 0.077 0.045 0.0253 0.165 0.163 2018 3 19 58196 15.609 375.890 148.8556 0.025 -0.243 0.074 0.045 0.0217 0.134 0.133 2018 3 20 58197 16.813 377.449 147.5912 0.033 -0.214 0.070 0.044 0.0160 0.103 0.103 2018 3 21 58198 17.650 378.784 146.3332 0.031 -0.204 0.069 0.044 0.0167 0.120 0.120 2018 3 22 58199 19.086 379.665 145.1413 0.026 -0.199 0.075 0.046 0.0192 0.150 0.148 2018 3 23 58200 20.816 381.008 144.0585 0.022 -0.193 0.075 0.045 0.0216 0.180 0.176 2018 3 24 58201 22.156 382.613 143.1048 0.013 -0.181 0.077 0.046 0.0352 0.179 0.176 2018 3 25 58202 23.439 384.264 142.2335 0.002 -0.166 0.081 0.046 0.0397 0.167 0.166 2018 3 26 58203 24.368 385.509 141.3570 -0.008 -0.150 0.081 0.046 0.0352 0.155 0.156 2018 3 27 58204 25.676 386.420 140.4078 -0.019 -0.135 0.076 0.045 0.0295 0.143 0.146 2018 3 28 58205 26.952 387.394 139.3324 0.025 -0.154 0.068 0.044 0.0248 0.141 0.139 2018 3 29 58206 28.108 388.997 138.1510 0.036 -0.161 0.069 0.045 0.0192 0.142 0.140 2018 3 30 58207 29.400 390.776 136.8455 0.029 -0.160 0.077 0.046 0.0195 0.144 0.144 2018 3 31 58208 31.034 392.665 135.4165 0.022 -0.159 0.078 0.046 0.0439 0.145 0.147 2018 4 1 58209 32.248 394.485 134.0451 0.015 -0.158 0.072 0.046 0.0449 0.147 0.151 Preliminary extension 2018 4 2 58210 33.092 396.279 132.7363 0.008 -0.157 0.074 0.046 0.0352 0.149 0.154 2018 4 3 58211 33.715 398.177 131.5351 0.001 -0.156 0.077 0.046 0.0261 0.151 0.158 2018 4 4 58212 34.064 400.245 130.4931 -0.006 -0.155 0.078 0.046 0.0279 0.153 0.162 2018 4 5 58213 34.298 402.087 129.6221 -0.012 -0.153 0.077 0.045 0.0574 0.154 0.165 2018 4 6 58214 34.394 403.902 128.8648 -0.019 -0.152 0.069 0.050 0.0348 0.156 0.169 2018 4 7 58215 34.250 405.463 128.1686 -0.009 -0.157 0.069 0.050 0.0350 0.177 0.184 2018 4 8 58216 34.806 407.137 127.5041 0.008 -0.163 0.075 0.046 0.0437 0.205 0.204 2018 4 9 58217 35.521 408.602 126.8484 0.024 -0.169 0.074 0.045 0.0524 0.233 0.224 2018 4 10 58218 36.773 410.153 126.1777 0.041 -0.176 0.071 0.044 0.0611 0.261 0.243 2018 4 11 58219 37.847 411.905 125.4790 0.000 0.000 0.065 0.043 0.0375 0.172 0.165 2018 4 12 58220 38.843 413.816 124.6968 0.000 0.000 0.031 0.027 0.0129 0.187 0.191 2018 4 13 58221 38.896 415.732 123.7795 0.000 0.000 0.040 0.027 0.0165 0.187 0.191 2018 4 14 58222 39.942 417.162 122.7361 0.000 0.000 0.044 0.027 0.0212 0.187 0.191 2018 4 15 58223 41.815 418.820 121.5584 0.000 0.000 0.049 0.028 0.0193 0.187 0.191 2018 4 16 58224 44.065 420.311 120.2382 0.000 0.000 0.040 0.036 0.0117 0.187 0.191 2018 4 17 58225 45.901 421.613 118.8746 0.000 0.000 0.034 0.038 0.0104 0.187 0.191 2018 4 18 58226 47.493 422.306 117.6010 0.000 0.000 0.035 0.032 0.0127 0.187 0.191 2018 4 19 58227 49.429 423.176 116.4840 0.000 0.000 0.042 0.029 0.0151 0.187 0.191 2018 4 20 58228 51.709 424.505 115.4739 0.000 0.000 0.052 0.026 0.0173 0.187 0.191 2018 4 21 58229 53.978 426.021 114.5011 0.000 0.000 0.049 0.026 0.0173 0.187 0.191 2018 4 22 58230 56.141 427.521 113.5378 0.000 0.000 0.052 0.026 0.0197 0.187 0.191 2018 4 23 58231 57.981 429.185 112.5219 0.000 0.000 0.058 0.031 0.0150 0.187 0.191 2018 4 24 58232 59.915 430.727 111.3837 0.000 0.000 0.054 0.039 0.0115 0.187 0.191 2018 4 25 58233 61.477 432.166 110.0892 0.000 0.000 0.052 0.036 0.0126 0.187 0.191 2018 4 26 58234 62.715 432.993 108.6692 0.000 0.000 0.048 0.033 0.0114 0.187 0.191 2018 4 27 58235 63.670 433.944 107.1603 0.000 0.000 0.049 0.028 0.0147 0.187 0.191 2018 4 28 58236 64.985 434.749 105.6546 0.000 0.000 0.047 0.023 0.0377 0.187 0.191 2018 4 29 58237 66.418 435.685 104.1989 0.000 0.000 0.057 0.026 0.0377 0.187 0.191 2018 4 30 58238 67.664 436.719 102.8766 0.000 0.000 0.057 0.030 0.0377 0.187 0.191 2018 5 1 58239 68.865 437.504 101.7122 0.000 0.000 0.066 0.144 0.0377 0.187 0.191 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 3 2 58179 -102.956 -10.175 0.417 0.151 2018 3 3 58180 -102.600 -10.353 0.493 0.176 2018 3 4 58181 -102.493 -10.438 0.568 0.200 2018 3 5 58182 -102.610 -10.313 0.646 0.225 2018 3 6 58183 -102.832 -10.083 0.721 0.249 2018 3 7 58184 -103.276 -10.028 0.644 0.225 2018 3 8 58185 -103.769 -10.197 0.523 0.188 2018 3 9 58186 -104.203 -10.487 0.405 0.150 2018 3 10 58187 -104.319 -10.692 0.417 0.170 2018 3 11 58188 -104.060 -10.777 0.480 0.211 2018 3 12 58189 -103.567 -10.800 0.543 0.251 2018 3 13 58190 -103.112 -10.814 0.606 0.292 2018 3 14 58191 -102.798 -10.856 0.601 0.278 2018 3 15 58192 -102.653 -10.840 0.578 0.250 2018 3 16 58193 -102.576 -10.741 0.556 0.222 2018 3 17 58194 -102.541 -10.571 0.493 0.192 2018 3 18 58195 -102.563 -10.484 0.415 0.163 2018 3 19 58196 -102.634 -10.571 0.337 0.133 2018 3 20 58197 -102.698 -10.785 0.259 0.103 2018 3 21 58198 -102.783 -11.013 0.302 0.120 2018 3 22 58199 -102.937 -11.135 0.377 0.148 2018 3 23 58200 -103.169 -11.146 0.452 0.176 2018 3 24 58201 -103.376 -11.141 0.450 0.176 2018 3 25 58202 -103.370 -11.200 0.420 0.166 2018 3 26 58203 -103.072 -11.299 0.390 0.156 2018 3 27 58204 -102.604 -11.346 0.359 0.146 2018 3 28 58205 -102.052 -11.335 0.354 0.139 2018 3 29 58206 -101.804 -11.304 0.357 0.140 2018 3 30 58207 -101.833 -11.370 0.362 0.144 2018 3 31 58208 -101.971 -11.540 0.365 0.147 2018 4 1 58209 -102.098 -11.684 0.370 0.151 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 3 2 58179 1.1896 0.0147 15.04106697158 0.00000000256 2018 3 3 58180 1.2725 0.0144 15.04106695715 0.00000000251 2018 3 4 58181 1.2376 0.0152 15.04106696322 0.00000000265 2018 3 5 58182 1.1401 0.0149 15.04106698019 0.00000000259 2018 3 6 58183 0.9967 0.0140 15.04106700516 0.00000000244 2018 3 7 58184 0.9130 0.0139 15.04106701973 0.00000000242 2018 3 8 58185 0.8357 0.0136 15.04106703319 0.00000000237 2018 3 9 58186 0.7524 0.0132 15.04106704769 0.00000000230 2018 3 10 58187 0.6874 0.0139 15.04106705900 0.00000000242 2018 3 11 58188 0.6912 0.0144 15.04106705834 0.00000000251 2018 3 12 58189 0.7115 0.0144 15.04106705481 0.00000000251 2018 3 13 58190 0.7747 0.0143 15.04106704381 0.00000000249 2018 3 14 58191 0.8772 0.0139 15.04106702596 0.00000000242 2018 3 15 58192 0.9668 0.0141 15.04106701036 0.00000000245 2018 3 16 58193 1.0444 0.0143 15.04106699685 0.00000000249 2018 3 17 58194 1.1224 0.0146 15.04106698328 0.00000000254 2018 3 18 58195 1.1740 0.0145 15.04106697429 0.00000000252 2018 3 19 58196 1.2189 0.0145 15.04106696648 0.00000000252 2018 3 20 58197 1.2435 0.0146 15.04106696219 0.00000000254 2018 3 21 58198 1.2241 0.0144 15.04106696557 0.00000000251 2018 3 22 58199 1.1419 0.0145 15.04106697988 0.00000000252 2018 3 23 58200 1.0293 0.0147 15.04106699948 0.00000000256 2018 3 24 58201 0.9174 0.0150 15.04106701896 0.00000000261 2018 3 25 58202 0.8401 0.0152 15.04106703242 0.00000000265 2018 3 26 58203 0.8810 0.0161 15.04106702530 0.00000000280 2018 3 27 58204 1.0141 0.0158 15.04106700213 0.00000000275 2018 3 28 58205 1.1555 0.0141 15.04106697751 0.00000000245 2018 3 29 58206 1.2568 0.0144 15.04106695988 0.00000000251 2018 3 30 58207 1.3360 0.0151 15.04106694609 0.00000000263 2018 3 31 58208 1.3925 0.0151 15.04106693625 0.00000000263 2018 4 1 58209 1.3719 0.0145 15.04106693984 0.00000000252 4 - INFORMATION ON TIME SCALES TAI - UTC = 37 s. during period [58179-58209] No leap second introduced during period [58179-58209] 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 67 71 5 - 25 62 7 58183.21 to 58204.21 307 400 22 - 35 172 BKG bkg00014.eops 61 72 3 - 15 37 8 58179.27 to 58204.21 55 139 20 - 69 76 GSFC gsf2016a.eoxy 44 47 2 8 13 31 9 58179.27 to 58205.27 47 106 18 20 50 63 IAA iaa2007a.eops 46 52 3 - 15 37 8 58183.21 to 58205.27 59 120 13 - 64 37 USNO usn2018a.eoxy 38 40 2 - 15 37 8 58179.27 to 58204.21 65 77 17 - 76 82 IVS * ivs14r1X.eops 20 18 1 - 6 17 8 58183.21 to 58205.27 86 71 11 - 8 8 VLBI Intensive BKG * bkgint14.eopi - - 16 - - - 28 58179.80 to 58208.33 - - 27 - - - GSFC * gsf2016a.eopi - - 22 - - - 28 58179.80 to 58208.33 - - 65 - - - IAA * iaa2005a.eopi - - 13 - - - 28 58179.80 to 58208.33 - - 24 - - - PUL pul2010a.eopi - - 16 - - - 26 58179.80 to 58208.33 - - 27 - - - USNO * usn2018a.eopi - - 21 - - - 62 58179.13 to 58208.33 - - 336 - - - GPS CODE COD*ERP_R 6 6 - 1 - - 30 58179.50 to 58208.50 55 38 - 9 - - JPL jpl*.erp 12 15 - 7 - - 30 58179.50 to 58208.50 52 27 - 9 - - GFZ gfz*.erp 2 3 - 0 - - 241 58179.00 to 58209.00 418 229 - 45 - - ESOC esa*.erp 8 9 - 4 - - 30 58179.50 to 58208.50 50 23 - 11 - - NOAA ngs*.erp 2 2 - 0 - - 23 58179.50 to 58208.50 62 39 - 8 - - SIO sio*.erp siu*.erp 69 75 - 18 - - 23 58179.50 to 58207.50 76 44 - 21 - - EMR emr*.erp 3 3 - 1 - - 24 58179.50 to 58206.50 52 41 - 11 - - IAA gnss.res 4 4 - 0 - - 30 58179.50 to 58208.50 73 82 - 27 - - GRGS grg*.erp 48 48 - 0 - - 30 58179.50 to 58208.50 39 26 - 8 - - ASI asi*.erp 7 7 - 0 - - 30 58179.50 to 58208.50 61 40 - 25 - - MIT mit*.erp 13 13 - 1 - - 30 58179.50 to 58208.50 43 25 - 10 - - IGR * igs96p02.erp 13 14 - 3 - - 30 58179.50 to 58208.50 43 22 - 8 - - IGS * igs00p03.erp 4 4 - 0 - - 30 58179.50 to 58208.50 41 19 - 9 - - SLR MCC tg*.02 182 191 - 31 - - 31 58179.00 to 58209.00 72 116 - 118 - - IAA slr_v.dat 63 65 - 4 - - 31 58179.00 to 58209.00 196 198 - 23 - - ASI asi*.eop 75 72 - 14 - - 30 58179.50 to 58208.50 214 192 - 36 - - ILRS * ilrsa.eop 51 50 - 7 - - 30 58179.50 to 58208.50 124 147 - 25 - - BULLETIN A NEOS mark3.out 20 19 5 - - - 31 58179.00 to 58209.00 62 34 18 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html