BULLETIN B 436 3 June 2024 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 0.055 0.045 0.0260 0.409 0.288 2024 4 2 60402 -13.398 342.432 -14.0105 0.361 -0.140 0.054 0.047 0.0145 0.071 0.094 2024 4 3 60403 -12.591 344.287 -13.7050 0.371 -0.126 0.055 0.048 0.0149 0.141 0.100 2024 4 4 60404 -11.571 346.466 -13.5383 0.371 -0.118 0.055 0.046 0.0168 0.213 0.148 2024 4 5 60405 -10.446 348.815 -13.6728 0.364 -0.109 0.056 0.044 0.0201 0.306 0.211 2024 4 6 60406 -9.638 351.294 -14.1568 0.351 -0.092 0.055 0.043 0.0255 0.575 0.392 2024 4 7 60407 -9.242 353.830 -14.9198 0.332 -0.071 0.057 0.045 0.0333 1.118 0.757 2024 4 8 60408 -9.090 356.351 -15.8648 0.310 -0.046 0.056 0.044 0.1032 1.750 1.182 2024 4 9 60409 -9.231 358.857 -16.7891 0.287 -0.021 0.054 0.044 0.1205 2.220 1.498 2024 4 10 60410 -8.747 360.673 -17.4821 0.265 0.005 0.055 0.043 0.0840 1.890 1.276 2024 4 11 60411 -7.983 362.585 -17.8513 0.245 0.027 0.054 0.044 0.0491 1.231 0.833 2024 4 12 60412 -7.461 364.427 -17.9880 0.229 0.042 0.053 0.045 0.0309 0.649 0.441 2024 4 13 60413 -6.921 365.983 -17.8668 0.218 0.032 0.054 0.045 0.0247 0.476 0.327 2024 4 14 60414 -6.516 367.623 -17.5376 0.214 0.008 0.056 0.045 0.0186 0.354 0.246 2024 4 15 60415 -6.006 369.258 -17.2200 0.219 -0.022 0.058 0.046 0.0166 0.223 0.161 2024 4 16 60416 -5.006 371.372 -16.9186 0.234 -0.050 0.056 0.049 0.0156 0.133 0.102 2024 4 17 60417 -3.739 373.906 -16.6919 0.304 -0.060 0.056 0.049 0.0138 0.109 0.091 2024 4 18 60418 -2.991 376.663 -16.6288 0.369 -0.064 0.054 0.048 0.0105 0.093 0.087 2024 4 19 60419 -2.488 379.010 -16.7689 0.387 -0.066 0.055 0.049 0.0087 0.082 0.085 2024 4 20 60420 -2.076 381.507 -17.0775 0.321 -0.069 0.054 0.050 0.0079 0.084 0.091 2024 4 21 60421 -2.231 384.143 -17.5024 0.259 -0.065 0.057 0.048 0.0078 0.080 0.085 2024 4 22 60422 -2.308 386.320 -18.0668 0.236 -0.055 0.058 0.048 0.0107 0.068 0.069 2024 4 23 60423 -1.740 388.472 -18.5058 0.239 -0.049 0.060 0.049 0.0134 0.056 0.053 2024 4 24 60424 -0.963 390.700 -18.9052 0.262 -0.078 0.060 0.048 0.0159 0.052 0.048 2024 4 25 60425 0.442 393.116 -19.1781 0.295 -0.121 0.060 0.048 0.0181 0.049 0.044 2024 4 26 60426 1.257 395.847 -19.2454 0.330 -0.164 0.056 0.046 0.0179 0.046 0.041 2024 4 27 60427 1.524 398.094 -19.0870 0.341 -0.171 0.053 0.045 0.0160 0.044 0.040 2024 4 28 60428 1.661 400.368 -18.7657 0.337 -0.157 0.053 0.044 0.0139 0.043 0.039 2024 4 29 60429 2.190 401.996 -18.3821 0.326 -0.140 0.056 0.043 0.0125 0.042 0.039 2024 4 30 60430 3.035 403.402 -18.0341 0.311 -0.127 0.054 0.042 0.0116 0.041 0.038 2024 5 1 60431 3.992 404.771 -17.8029 0.300 -0.147 0.054 0.042 0.0117 0.048 0.047 Preliminary extension 2024 5 2 60432 5.650 406.402 -17.7874 0.291 -0.178 0.053 0.042 0.0117 0.058 0.061 2024 5 3 60433 7.127 408.194 -18.0579 0.283 -0.208 0.054 0.042 0.0113 0.068 0.073 2024 5 4 60434 9.232 410.135 -18.6491 0.280 -0.220 0.055 0.043 0.0106 0.067 0.072 2024 5 5 60435 10.795 412.146 -19.4617 0.279 -0.218 0.052 0.040 0.0102 0.062 0.064 2024 5 6 60436 11.699 413.809 -20.3502 0.282 -0.206 0.049 0.038 0.0108 0.056 0.055 2024 5 7 60437 12.120 415.274 -21.0957 0.287 -0.183 0.047 0.038 0.0119 0.052 0.049 2024 5 8 60438 12.280 416.324 -21.5289 0.298 -0.141 0.046 0.038 0.0123 0.056 0.053 2024 5 9 60439 12.665 417.385 -21.6113 0.311 -0.094 0.045 0.038 0.0125 0.062 0.062 2024 5 10 60440 12.967 418.742 -21.3856 0.320 -0.048 0.045 0.038 0.0127 0.068 0.070 2024 5 11 60441 13.646 420.266 -20.9908 0.313 -0.022 0.045 0.036 0.0123 0.069 0.071 2024 5 12 60442 14.157 421.879 -20.5797 0.296 -0.009 0.045 0.035 0.0112 0.068 0.071 2024 5 13 60443 14.611 423.344 -20.2237 0.279 -0.004 0.045 0.035 0.0108 0.066 0.070 2024 5 14 60444 15.217 424.709 -20.0078 0.264 -0.004 0.044 0.035 0.0110 0.065 0.070 2024 5 15 60445 15.830 425.948 -19.9294 0.259 -0.013 0.044 0.035 0.0116 0.067 0.074 2024 5 16 60446 16.603 426.603 -19.9708 0.263 -0.022 0.044 0.035 0.0126 0.071 0.079 2024 5 17 60447 17.717 427.889 -20.1141 0.278 -0.021 0.046 0.036 0.0127 0.074 0.084 2024 5 18 60448 18.713 429.077 -20.3299 0.440 0.071 0.047 0.038 0.0124 0.086 0.100 2024 5 19 60449 20.098 430.158 -20.5948 0.624 0.188 0.049 0.039 0.0130 0.105 0.125 2024 5 20 60450 21.796 431.256 -20.9182 0.694 0.256 0.051 0.041 0.0152 0.120 0.146 2024 5 21 60451 23.358 432.580 -21.1867 0.560 0.228 0.053 0.043 0.0161 0.128 0.157 2024 5 22 60452 24.740 434.038 -21.3277 0.068 -0.019 0.054 0.044 0.0150 0.500 0.500 2024 5 23 60453 26.113 435.715 -21.3166 0.066 -0.019 0.056 0.045 0.0147 0.500 0.500 2024 5 24 60454 26.787 437.527 -21.0968 0.067 -0.016 0.056 0.046 0.0155 0.500 0.500 2024 5 25 60455 26.849 439.066 -20.6964 0.069 -0.014 0.058 0.048 0.0164 0.500 0.500 2024 5 26 60456 27.217 440.428 -20.2121 0.073 -0.015 0.059 0.049 0.0161 0.500 0.500 2024 5 27 60457 28.230 441.874 -19.7424 0.078 -0.019 0.062 0.051 0.0170 0.500 0.500 2024 5 28 60458 29.493 443.870 -19.4225 0.082 -0.025 0.066 0.055 0.0189 0.500 0.500 2024 5 29 60459 30.838 445.758 -19.3347 0.084 -0.029 0.072 0.059 0.0213 0.500 0.500 2024 5 30 60460 32.102 447.655 -19.4903 0.081 -0.029 0.083 0.064 0.0258 0.500 0.500 2024 5 31 60461 33.070 449.248 -19.8798 0.073 -0.028 0.099 0.072 0.0336 0.500 0.500 2024 6 1 60462 33.973 450.704 -20.4436 0.062 -0.024 0.123 0.083 0.0460 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 2024 4 2 60402 -107.898 -9.785 0.179 0.094 2024 4 3 60403 -107.777 -9.777 0.355 0.100 2024 4 4 60404 -107.828 -9.935 0.534 0.148 2024 4 5 60405 -107.807 -10.117 0.768 0.211 2024 4 6 60406 -107.648 -10.033 1.445 0.392 2024 4 7 60407 -107.598 -9.646 2.809 0.757 2024 4 8 60408 -107.880 -9.247 4.400 1.182 2024 4 9 60409 -108.411 -9.088 5.580 1.498 2024 4 10 60410 -108.961 -9.133 4.751 1.276 2024 4 11 60411 -109.385 -9.262 3.095 0.833 2024 4 12 60412 -109.560 -9.509 1.630 0.441 2024 4 13 60413 -109.384 -9.939 1.198 0.327 2024 4 14 60414 -108.952 -10.391 0.890 0.246 2024 4 15 60415 -108.548 -10.604 0.561 0.161 2024 4 16 60416 -108.325 -10.510 0.335 0.102 2024 4 17 60417 -108.047 -10.270 0.275 0.091 2024 4 18 60418 -107.717 -10.071 0.235 0.087 2024 4 19 60419 -107.496 -9.906 0.206 0.085 2024 4 20 60420 -107.629 -9.675 0.211 0.091 2024 4 21 60421 -107.901 -9.387 0.200 0.085 2024 4 22 60422 -108.120 -9.224 0.171 0.069 2024 4 23 60423 -108.245 -9.339 0.141 0.053 2024 4 24 60424 -108.301 -9.701 0.131 0.048 2024 4 25 60425 -108.308 -10.092 0.122 0.044 2024 4 26 60426 -108.234 -10.352 0.115 0.041 2024 4 27 60427 -108.119 -10.456 0.112 0.040 2024 4 28 60428 -107.986 -10.501 0.109 0.039 2024 4 29 60429 -107.845 -10.555 0.106 0.039 2024 4 30 60430 -107.669 -10.623 0.104 0.038 2024 5 1 60431 -107.435 -10.729 0.120 0.047 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 2024 4 2 60402 -0.3035 0.0240 15.04106723151 0.00000000418 2024 4 3 60403 -0.2652 0.0252 15.04106722484 0.00000000439 2024 4 4 60404 -0.0379 0.0249 15.04106718527 0.00000000433 2024 4 5 60405 0.3084 0.0247 15.04106712498 0.00000000430 2024 4 6 60406 0.6447 0.0252 15.04106706644 0.00000000439 2024 4 7 60407 0.8746 0.0254 15.04106702641 0.00000000442 2024 4 8 60408 0.9687 0.0267 15.04106701003 0.00000000465 2024 4 9 60409 0.8380 0.0257 15.04106703279 0.00000000447 2024 4 10 60410 0.5380 0.0251 15.04106708501 0.00000000437 2024 4 11 60411 0.2132 0.0248 15.04106714156 0.00000000432 2024 4 12 60412 -0.0311 0.0250 15.04106718408 0.00000000435 2024 4 13 60413 -0.2091 0.0253 15.04106721507 0.00000000440 2024 4 14 60414 -0.3154 0.0249 15.04106723358 0.00000000433 2024 4 15 60415 -0.3154 0.0239 15.04106723358 0.00000000416 2024 4 16 60416 -0.2722 0.0232 15.04106722606 0.00000000404 2024 4 17 60417 -0.1576 0.0231 15.04106720611 0.00000000402 2024 4 18 60418 0.0334 0.0231 15.04106717286 0.00000000402 2024 4 19 60419 0.2316 0.0227 15.04106713835 0.00000000395 2024 4 20 60420 0.3763 0.0232 15.04106711316 0.00000000404 2024 4 21 60421 0.4687 0.0231 15.04106709708 0.00000000402 2024 4 22 60422 0.4817 0.0231 15.04106709481 0.00000000402 2024 4 23 60423 0.4633 0.0230 15.04106709802 0.00000000400 2024 4 24 60424 0.3394 0.0230 15.04106711959 0.00000000400 2024 4 25 60425 0.1801 0.0238 15.04106714732 0.00000000414 2024 4 26 60426 -0.0449 0.0234 15.04106718649 0.00000000407 2024 4 27 60427 -0.2543 0.0233 15.04106722294 0.00000000406 2024 4 28 60428 -0.3724 0.0240 15.04106724350 0.00000000418 2024 4 29 60429 -0.3851 0.0259 15.04106724571 0.00000000451 2024 4 30 60430 -0.3027 0.0266 15.04106723137 0.00000000463 2024 5 1 60431 -0.1376 0.0275 15.04106720262 0.00000000479 4 - INFORMATION ON TIME SCALES TAI - UTC = 37 s. during period [60402-60431] No leap second introduced during period [60402-60431] 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 44 65 3 - 42 35 10 60403.21 to 60430.21 115 183 21 - 34 56 GSFC gsf2023a.eoxy 57 68 3 9 46 43 13 60403.21 to 60430.21 151 150 27 10 53 58 IAA iaa2021a.eops 45 53 3 - 37 35 9 60403.21 to 60430.21 213 194 13 - 67 92 USNO usn2023c.eoxy 39 56 2 - 47 40 9 60403.21 to 60430.21 68 63 24 - 25 32 OPA opa2024a.eops 1338 754 14 - 1340 3137 12 60403.21 to 60430.21 9506 6044 92 - 359 538 IVS * ivs2023a.eoxy 68 146 7 - 62 51 8 60403.22 to 60430.21 132 64 21 - 7 7 ASI asi2023a.eoxy 199 183 17 - 175 164 9 60403.21 to 60430.21 239 135 34 - 118 81 VLBI Intensive GSI * gsiint2d.eopi - - 8 - - - 8 60406.33 to 60428.33 - - 18 - - - BKG * bkg2023a.eopi - - 10 - - - 6 60402.75 to 60405.00 - - 28 - - - GSFC * gsf2023a.eopi - - 12 - - - 71 60402.75 to 60430.84 - - 31 - - - IAA * iaa2021a.eopi - - 28 - - - 94 60402.75 to 60430.84 - - 54 - - - USNO * usn2023c.eopi - - 10 - - - 41 60402.75 to 60430.76 - - 41 - - - DGF dgf2024a.eopi - - 10 - - - 36 60402.75 to 60430.75 - - 39 - - - GPS CODE COD0OPSFIN 3 3 - 0 - - 29 60402.50 to 60430.50 34 28 - 13 - - JPL JPL0OPSFIN 10 12 - 6 - - 29 60402.50 to 60430.50 47 37 - 21 - - GFZ GFZ0OPSFIN 4 4 - 1 - - 29 60402.50 to 60430.50 42 31 - 15 - - ESA ESA0OPSFIN 5 6 - 3 - - 29 60402.50 to 60430.50 41 25 - 15 - - SIO SIO0OPSFIN 27 25 - 10 - - 29 60402.50 to 60430.50 55 40 - 24 - - EMR EMR0OPSRAP 4 3 - 1 - - 29 60402.50 to 60430.50 55 65 - 16 - - IAA gnss.res 0 0 - 0 - - 29 60402.50 to 60430.50 65 67 - 28 - - GRGS GRG0OPSFIN 269 269 - 0 - - 29 60402.50 to 60430.50 38 32 - 18 - - ASI asi*.erp 9 9 - 0 - - 29 60402.50 to 60430.50 23 24 - 65 - - MIT MIT0OPSFIN 10 10 - 1 - - 29 60402.50 to 60430.50 54 45 - 20 - - IGS * IGS0OPSRAP 10 11 - 2 - - 29 60402.50 to 60430.50 40 33 - 16 - - IGS * IGS0OPSFIN 9 9 - 2 - - 29 60402.50 to 60430.50 39 28 - 16 - - SLR MCC tg*.02 241 240 - 34 - - 30 60402.00 to 60431.00 185 163 - 161 - - IAA slr_v.dat 93 93 - 6 - - 29 60402.00 to 60431.00 259 302 - 26 - - ASI asi.*.eop 70 66 - 15 - - 29 60402.50 to 60430.50 226 148 - 60 - - ILRS * ilrsa.eop 58 53 - 9 - - 29 60402.50 to 60430.50 152 174 - 34 - - BULLETIN A NEOS mark3.out 17 32 6 - - - 30 60402.00 to 60431.00 36 53 24 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html