BULLETIN B 425 3 July 2023 Contents are described in https://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 dX err dY err (0 h UTC) mas mas ms mas mas mas mas ms mas mas Final values Mean formal error 0.057 0.054 0.0142 0.327 0.078 2023 5 2 60066 28.796 474.630 -34.7850 0.450 -0.137 0.054 0.056 0.0107 0.050 0.041 2023 5 3 60067 30.234 475.690 -35.4724 0.440 -0.090 0.055 0.055 0.0115 0.047 0.039 2023 5 4 60068 31.924 476.551 -36.1704 0.393 -0.071 0.054 0.055 0.0122 0.047 0.040 2023 5 5 60069 33.840 477.643 -36.8208 0.341 -0.067 0.054 0.058 0.0132 0.048 0.041 2023 5 6 60070 35.678 478.685 -37.3656 0.315 -0.092 0.061 0.059 0.0143 0.050 0.042 2023 5 7 60071 37.872 479.777 -37.7721 0.311 -0.137 0.061 0.061 0.0153 0.055 0.044 2023 5 8 60072 39.787 481.291 -37.9959 0.321 -0.184 0.060 0.062 0.0164 0.060 0.046 2023 5 9 60073 41.742 482.696 -38.1001 0.341 -0.222 0.059 0.058 0.0181 0.064 0.047 2023 5 10 60074 43.548 484.305 -38.1955 0.361 -0.208 0.059 0.056 0.0119 0.075 0.051 2023 5 11 60075 45.281 485.514 -38.3861 0.383 -0.175 0.058 0.053 0.0124 0.093 0.057 2023 5 12 60076 47.344 486.618 -38.8214 0.405 -0.142 0.060 0.054 0.0123 0.108 0.063 2023 5 13 60077 49.455 487.750 -39.5385 0.425 -0.147 0.063 0.053 0.0123 0.151 0.066 2023 5 14 60078 52.341 489.096 -40.5378 0.440 -0.174 0.066 0.051 0.0125 0.235 0.071 2023 5 15 60079 55.853 490.619 -41.7757 0.446 -0.202 0.060 0.051 0.0132 0.330 0.075 2023 5 16 60080 59.171 492.264 -43.0984 0.441 -0.220 0.056 0.053 0.0143 0.398 0.079 2023 5 17 60081 62.111 493.466 -44.2928 0.408 -0.193 0.055 0.052 0.0144 0.700 0.110 2023 5 18 60082 64.515 494.600 -45.2544 0.365 -0.149 0.053 0.051 0.0143 1.187 0.160 2023 5 19 60083 66.867 495.722 -45.9063 0.322 -0.103 0.054 0.050 0.0144 1.620 0.205 2023 5 20 60084 69.368 496.634 -46.2641 0.296 -0.078 0.053 0.050 0.0147 1.526 0.197 2023 5 21 60085 71.680 497.569 -46.3853 0.287 -0.068 0.054 0.046 0.0128 1.129 0.160 2023 5 22 60086 73.653 498.156 -46.2514 0.287 -0.063 0.056 0.045 0.0144 0.680 0.117 2023 5 23 60087 76.168 498.968 -45.9896 0.298 -0.057 0.061 0.048 0.0160 0.356 0.087 2023 5 24 60088 79.160 500.036 -45.6668 0.321 -0.038 0.061 0.050 0.0175 0.268 0.078 2023 5 25 60089 82.179 501.016 -45.3568 0.352 -0.016 0.056 0.053 0.0175 0.195 0.071 2023 5 26 60090 84.872 502.481 -45.0984 0.384 0.003 0.054 0.057 0.0171 0.128 0.064 2023 5 27 60091 86.698 503.700 -44.9506 0.404 0.002 0.053 0.055 0.0163 0.112 0.062 2023 5 28 60092 88.656 504.426 -44.9906 0.414 -0.014 0.055 0.058 0.0159 0.106 0.063 2023 5 29 60093 90.327 505.272 -45.2128 0.419 -0.038 0.055 0.058 0.0153 0.097 0.063 2023 5 30 60094 91.878 506.018 -45.4994 0.418 -0.066 0.057 0.058 0.0143 0.085 0.063 2023 5 31 60095 93.791 507.001 -45.7819 0.412 -0.096 0.059 0.056 0.0134 0.076 0.064 2023 6 1 60096 96.355 507.784 -46.0391 0.402 -0.125 0.062 0.056 0.0130 0.072 0.064 Preliminary extension 2023 6 2 60097 99.289 508.691 -46.2064 0.374 -0.135 0.061 0.052 0.0129 0.071 0.066 2023 6 3 60098 102.197 509.339 -46.1958 0.342 -0.137 0.059 0.051 0.0112 0.073 0.070 2023 6 4 60099 105.205 510.069 -45.9325 0.316 -0.138 0.053 0.046 0.0104 0.074 0.076 2023 6 5 60100 107.992 510.379 -45.4671 0.300 -0.140 0.050 0.043 0.0104 0.075 0.080 2023 6 6 60101 111.201 510.808 -44.9418 0.298 -0.145 0.047 0.042 0.0112 0.076 0.082 2023 6 7 60102 114.185 511.331 -44.4527 0.340 -0.159 0.045 0.042 0.0129 0.080 0.089 2023 6 8 60103 116.509 511.548 -44.1029 0.393 -0.176 0.043 0.041 0.0152 0.086 0.098 2023 6 9 60104 119.173 511.824 -43.9671 0.441 -0.193 0.042 0.040 0.0171 0.092 0.107 2023 6 10 60105 121.705 512.149 -44.0547 0.445 -0.220 0.041 0.040 0.0172 0.091 0.107 2023 6 11 60106 123.857 512.568 -44.3125 0.422 -0.244 0.040 0.040 0.0177 0.088 0.104 2023 6 12 60107 126.097 512.907 -44.5930 0.393 -0.253 0.041 0.041 0.0191 0.084 0.102 2023 6 13 60108 128.652 513.036 -44.8147 0.368 -0.237 0.042 0.041 0.0200 0.082 0.100 2023 6 14 60109 131.285 513.180 -44.8845 0.365 -0.166 0.042 0.041 0.0201 0.084 0.103 2023 6 15 60110 133.773 513.065 -44.6977 0.372 -0.079 0.043 0.040 0.0196 0.087 0.106 2023 6 16 60111 136.487 512.864 -44.2624 0.465 -0.071 0.044 0.039 0.0194 0.093 0.114 2023 6 17 60112 139.534 512.919 -43.6422 0.598 -0.119 0.044 0.039 0.0190 0.104 0.128 2023 6 18 60113 142.453 512.762 -42.8867 0.687 -0.172 0.046 0.040 0.0172 0.116 0.144 2023 6 19 60114 145.703 512.474 -42.0467 0.676 -0.198 0.048 0.042 0.0166 0.124 0.154 2023 6 20 60115 148.678 512.370 -41.1938 0.504 -0.164 0.050 0.044 0.0173 0.128 0.160 2023 6 21 60116 152.043 511.964 -40.4031 0.265 -0.129 0.051 0.045 0.0184 0.500 0.500 2023 6 22 60117 155.496 511.555 -39.6833 0.268 -0.131 0.053 0.046 0.0196 0.500 0.500 2023 6 23 60118 158.340 511.196 -39.0493 0.269 -0.131 0.056 0.047 0.0202 0.500 0.500 2023 6 24 60119 161.385 510.798 -38.5234 0.268 -0.132 0.057 0.048 0.0210 0.500 0.500 2023 6 25 60120 164.271 510.744 -38.1006 0.263 -0.137 0.059 0.050 0.0222 0.500 0.500 2023 6 26 60121 167.149 510.335 -37.7650 0.257 -0.143 0.060 0.052 0.0252 0.500 0.500 2023 6 27 60122 170.468 509.980 -37.5274 0.249 -0.149 0.062 0.054 0.0284 0.500 0.500 2023 6 28 60123 173.926 509.934 -37.3036 0.239 -0.153 0.066 0.058 0.0269 0.500 0.500 2023 6 29 60124 177.025 509.635 -37.0382 0.230 -0.153 0.071 0.064 0.0243 0.500 0.500 2023 6 30 60125 180.253 509.091 -36.6607 0.223 -0.153 0.079 0.075 0.0236 0.500 0.500 2023 7 1 60126 183.677 508.479 -36.1330 0.220 -0.155 0.090 0.091 0.0252 0.500 0.500 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 2023 5 2 60066 -105.942 -9.706 0.125 0.041 2023 5 3 60067 -106.395 -9.387 0.119 0.039 2023 5 4 60068 -106.827 -9.225 0.118 0.040 2023 5 5 60069 -107.154 -9.237 0.120 0.041 2023 5 6 60070 -107.390 -9.396 0.125 0.042 2023 5 7 60071 -107.589 -9.635 0.137 0.044 2023 5 8 60072 -107.700 -9.885 0.151 0.046 2023 5 9 60073 -107.603 -10.090 0.162 0.047 2023 5 10 60074 -107.267 -10.183 0.189 0.051 2023 5 11 60075 -106.770 -10.195 0.233 0.057 2023 5 12 60076 -106.269 -10.150 0.272 0.063 2023 5 13 60077 -105.913 -10.091 0.379 0.066 2023 5 14 60078 -105.788 -10.004 0.592 0.071 2023 5 15 60079 -105.905 -9.881 0.830 0.075 2023 5 16 60080 -106.202 -9.725 1.000 0.079 2023 5 17 60081 -106.606 -9.528 1.759 0.110 2023 5 18 60082 -106.953 -9.369 2.984 0.160 2023 5 19 60083 -107.164 -9.334 4.073 0.205 2023 5 20 60084 -107.252 -9.474 3.837 0.197 2023 5 21 60085 -107.324 -9.715 2.838 0.160 2023 5 22 60086 -107.428 -9.915 1.710 0.117 2023 5 23 60087 -107.516 -9.986 0.896 0.087 2023 5 24 60088 -107.507 -9.957 0.674 0.078 2023 5 25 60089 -107.375 -9.963 0.491 0.071 2023 5 26 60090 -107.114 -10.061 0.321 0.064 2023 5 27 60091 -106.780 -10.181 0.281 0.062 2023 5 28 60092 -106.507 -10.177 0.267 0.063 2023 5 29 60093 -106.520 -9.999 0.243 0.063 2023 5 30 60094 -106.948 -9.740 0.214 0.063 2023 5 31 60095 -107.635 -9.519 0.192 0.064 2023 6 1 60096 -108.261 -9.384 0.180 0.064 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 2023 5 2 60066 0.6431 0.0237 15.04106706672 0.00000000413 2023 5 3 60067 0.7120 0.0241 15.04106705472 0.00000000420 2023 5 4 60068 0.6840 0.0237 15.04106705960 0.00000000413 2023 5 5 60069 0.6055 0.0237 15.04106707326 0.00000000413 2023 5 6 60070 0.4770 0.0237 15.04106709563 0.00000000413 2023 5 7 60071 0.3168 0.0239 15.04106712352 0.00000000416 2023 5 8 60072 0.1477 0.0259 15.04106715296 0.00000000451 2023 5 9 60073 0.0777 0.0273 15.04106716514 0.00000000475 2023 5 10 60074 0.1209 0.0243 15.04106715762 0.00000000423 2023 5 11 60075 0.2941 0.0261 15.04106712747 0.00000000454 2023 5 12 60076 0.5745 0.0252 15.04106707866 0.00000000439 2023 5 13 60077 0.8647 0.0240 15.04106702814 0.00000000418 2023 5 14 60078 1.1312 0.0243 15.04106698174 0.00000000423 2023 5 15 60079 1.3088 0.0251 15.04106695083 0.00000000437 2023 5 16 60080 1.2961 0.0254 15.04106695304 0.00000000442 2023 5 17 60081 1.0916 0.0246 15.04106698864 0.00000000428 2023 5 18 60082 0.8148 0.0257 15.04106703682 0.00000000447 2023 5 19 60083 0.4982 0.0266 15.04106709194 0.00000000463 2023 5 20 60084 0.2209 0.0251 15.04106714021 0.00000000437 2023 5 21 60085 -0.0170 0.0253 15.04106718163 0.00000000440 2023 5 22 60086 -0.2163 0.0246 15.04106721633 0.00000000428 2023 5 23 60087 -0.3017 0.0235 15.04106723119 0.00000000409 2023 5 24 60088 -0.3301 0.0219 15.04106723614 0.00000000381 2023 5 25 60089 -0.2884 0.0218 15.04106722888 0.00000000380 2023 5 26 60090 -0.2109 0.0218 15.04106721539 0.00000000380 2023 5 27 60091 -0.0642 0.0219 15.04106718985 0.00000000381 2023 5 28 60092 0.1346 0.0229 15.04106715524 0.00000000399 2023 5 29 60093 0.2768 0.0224 15.04106713048 0.00000000390 2023 5 30 60094 0.2965 0.0223 15.04106712705 0.00000000388 2023 5 31 60095 0.2726 0.0219 15.04106713121 0.00000000381 2023 6 1 60096 0.2230 0.0211 15.04106713985 0.00000000367 4 - INFORMATION ON TIME SCALES TAI - UTC = 37 s. during period [60066-60096] No leap second introduced during period [60066-60096] 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/ 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 BKG bkg2023a.eoxy 64 64 3 - 51 49 9 60067.21 to 60095.21 182 163 23 - 48 60 GSFC gsf2023a.eoxy 72 63 3 11 55 56 12 60067.21 to 60095.21 156 103 26 15 69 53 USNO usn2023a.eoxy 54 53 3 - 50 49 10 60067.21 to 60095.21 97 164 24 - 66 52 IVS * ivs2023a.eoxy 84 111 6 - 61 59 8 60067.21 to 60090.27 228 109 21 - 10 6 VLBI Intensive GSI * gsiint2c.eopi - - 6 - - - 7 60070.34 to 60091.33 - - 29 - - - BKG * bkg2023.eopi - - 10 - - - 45 60066.79 to 60095.79 - - 74 - - - GSFC * gsf2023a.eopi - - 15 - - - 46 60066.79 to 60096.00 - - 84 - - - IAA * iaa2021a.eopi - - 32 - - - 61 60066.79 to 60096.00 - - 91 - - - USNO * usn2023a.eopi - - 12 - - - 36 60066.79 to 60096.00 - - 72 - - - GPS CODE COD0OPSFIN 3 3 - 0 - - 30 60066.50 to 60095.50 41 21 - 10 - - JPL JPL0OPSFIN 9 11 - 5 - - 30 60066.50 to 60095.50 61 34 - 21 - - GFZ GFZ0OPSFIN 4 4 - 1 - - 30 60066.50 to 60095.50 44 34 - 12 - - ESA ESA0OPSFIN 5 6 - 2 - - 30 60066.50 to 60095.50 46 25 - 11 - - SIO SIO0OPSFIN 19 19 - 9 - - 30 60066.50 to 60095.50 60 33 - 20 - - EMR EMR0OPSFIN 11 11 - 5 - - 7 60085.50 to 60091.50 50 39 - 9 - - IAA gnss.res 0 0 - 0 - - 30 60066.50 to 60095.50 243 102 - 23 - - GRGS GRG0OPSFIN 260 260 - 0 - - 30 60066.50 to 60095.50 39 29 - 11 - - ASI asi*.erp 12 12 - 0 - - 13 60066.50 to 60095.50 27 21 - 0 - - MIT MIT0OPSFIN 10 10 - 1 - - 30 60066.50 to 60095.50 60 35 - 16 - - IGR * IGS0OPSRAP 10 12 - 3 - - 30 60066.50 to 60095.50 39 25 - 10 - - IGS * IGS0OPSFIN 9 12 - 2 - - 30 60066.50 to 60095.50 36 28 - 9 - - SLR MCC tg*.02 208 264 - 31 - - 31 60066.00 to 60096.00 117 179 - 194 - - ASI asi2022a.eops 88 111 - 23 - - 30 60066.50 to 60095.50 224 322 - 95 - - ILRS * ilrsa.eop 79 91 - 19 - - 30 60066.50 to 60095.50 191 254 - 48 - - BULLETIN A NEOS mark3.out 19 17 6 - - - 31 60066.00 to 60096.00 37 35 24 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html