BULLETIN B 437 1 July 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 0.056 0.044 0.0159 0.074 0.071 2024 5 2 60432 5.650 406.402 -17.7874 0.289 -0.149 0.053 0.042 0.0117 0.055 0.043 2024 5 3 60433 7.127 408.194 -18.0579 0.280 -0.164 0.054 0.042 0.0113 0.063 0.049 2024 5 4 60434 9.235 410.131 -18.6491 0.278 -0.182 0.055 0.043 0.0106 0.065 0.051 2024 5 5 60435 10.796 412.148 -19.4610 0.281 -0.196 0.059 0.043 0.0102 0.065 0.053 2024 5 6 60436 11.708 413.817 -20.3513 0.285 -0.197 0.061 0.043 0.0146 0.065 0.054 2024 5 7 60437 12.100 415.269 -21.0976 0.288 -0.182 0.062 0.045 0.0165 0.065 0.056 2024 5 8 60438 12.288 416.326 -21.5271 0.284 -0.118 0.059 0.044 0.0198 0.081 0.071 2024 5 9 60439 12.646 417.387 -21.6091 0.277 -0.038 0.059 0.048 0.0226 0.108 0.096 2024 5 10 60440 12.979 418.733 -21.3867 0.269 0.035 0.056 0.051 0.0259 0.132 0.119 2024 5 11 60441 13.640 420.261 -20.9932 0.260 0.054 0.056 0.047 0.0238 0.125 0.112 2024 5 12 60442 14.171 421.876 -20.5749 0.252 0.037 0.059 0.044 0.0193 0.100 0.090 2024 5 13 60443 14.606 423.343 -20.2186 0.247 0.007 0.057 0.042 0.0170 0.072 0.065 2024 5 14 60444 15.229 424.711 -19.9961 0.248 -0.028 0.056 0.041 0.0164 0.052 0.047 2024 5 15 60445 15.820 425.951 -19.9247 0.261 -0.044 0.055 0.042 0.0172 0.047 0.043 2024 5 16 60446 16.606 426.602 -19.9709 0.281 -0.053 0.054 0.041 0.0179 0.044 0.040 2024 5 17 60447 17.715 427.884 -20.1155 0.304 -0.061 0.054 0.042 0.0167 0.042 0.038 2024 5 18 60448 18.717 429.072 -20.3244 0.330 -0.069 0.053 0.043 0.0158 0.044 0.039 2024 5 19 60449 20.076 430.148 -20.5901 0.356 -0.077 0.056 0.043 0.0141 0.048 0.043 2024 5 20 60450 21.803 431.244 -20.9125 0.379 -0.086 0.057 0.044 0.0143 0.052 0.047 2024 5 21 60451 23.339 432.571 -21.1852 0.395 -0.095 0.059 0.046 0.0156 0.056 0.050 2024 5 22 60452 24.717 434.053 -21.3394 0.396 -0.106 0.058 0.046 0.0159 0.057 0.053 2024 5 23 60453 26.116 435.695 -21.3148 0.389 -0.116 0.058 0.046 0.0158 0.059 0.056 2024 5 24 60454 26.781 437.520 -21.0862 0.378 -0.124 0.057 0.045 0.0159 0.060 0.059 2024 5 25 60455 26.851 439.024 -20.6853 0.364 -0.118 0.057 0.045 0.0158 0.066 0.066 2024 5 26 60456 27.178 440.415 -20.2039 0.352 -0.107 0.061 0.045 0.0149 0.077 0.080 2024 5 27 60457 28.245 441.833 -19.7433 0.344 -0.096 0.060 0.048 0.0147 0.089 0.096 2024 5 28 60458 29.456 443.877 -19.4182 0.344 -0.091 0.057 0.047 0.0145 0.098 0.107 2024 5 29 60459 30.834 445.716 -19.3275 0.371 -0.111 0.054 0.047 0.0136 0.102 0.115 2024 5 30 60460 32.065 447.664 -19.4796 0.405 -0.137 0.052 0.047 0.0133 0.107 0.125 2024 5 31 60461 33.064 449.242 -19.8640 0.432 -0.160 0.053 0.049 0.0131 0.111 0.134 2024 6 1 60462 33.901 450.745 -20.4347 0.414 -0.153 0.052 0.050 0.0126 0.107 0.132 Preliminary extension 2024 6 2 60463 34.797 452.429 -21.0416 0.371 -0.127 0.048 0.046 0.0123 0.099 0.122 2024 6 3 60464 35.394 454.427 -21.5479 0.322 -0.095 0.046 0.043 0.0126 0.090 0.111 2024 6 4 60465 35.934 456.261 -21.8794 0.279 -0.062 0.046 0.042 0.0130 0.083 0.103 2024 6 5 60466 36.704 457.769 -21.9378 0.274 -0.039 0.046 0.041 0.0129 0.082 0.102 2024 6 6 60467 37.519 459.083 -21.6474 0.286 -0.024 0.047 0.040 0.0126 0.082 0.103 2024 6 7 60468 38.634 460.390 -21.0530 0.304 -0.019 0.048 0.039 0.0121 0.081 0.103 2024 6 8 60469 40.004 461.654 -20.3195 0.320 -0.044 0.048 0.039 0.0113 0.083 0.106 2024 6 9 60470 41.991 463.003 -19.5661 0.332 -0.087 0.048 0.040 0.0114 0.087 0.110 2024 6 10 60471 43.886 464.422 -18.8579 0.342 -0.129 0.047 0.040 0.0126 0.091 0.115 2024 6 11 60472 45.749 465.235 -18.2550 0.349 -0.163 0.046 0.041 0.0147 0.093 0.118 2024 6 12 60473 47.753 466.052 -17.7762 0.433 -0.172 0.045 0.041 0.0170 0.105 0.132 2024 6 13 60474 49.954 466.673 -17.3848 0.473 -0.155 0.045 0.041 0.0184 0.119 0.149 2024 6 14 60475 51.839 467.745 -17.0034 0.385 -0.109 0.045 0.041 0.0190 0.127 0.159 2024 6 15 60476 53.599 468.959 -16.6010 0.112 0.007 0.047 0.042 0.0210 0.500 0.500 2024 6 16 60477 55.320 470.117 -16.1608 0.106 0.005 0.050 0.044 0.0233 0.500 0.500 2024 6 17 60478 57.187 471.031 -15.6411 0.099 -0.001 0.053 0.046 0.0257 0.500 0.500 2024 6 18 60479 58.802 472.000 -14.9594 0.094 -0.007 0.056 0.047 0.0276 0.500 0.500 2024 6 19 60480 60.703 472.612 -14.0448 0.091 -0.011 0.057 0.047 0.0290 0.500 0.500 2024 6 20 60481 62.929 473.240 -12.9210 0.091 -0.013 0.059 0.048 0.0309 0.500 0.500 2024 6 21 60482 65.525 473.724 -11.6582 0.093 -0.015 0.060 0.048 0.0324 0.500 0.500 2024 6 22 60483 68.543 474.238 -10.3253 0.097 -0.018 0.061 0.049 0.0352 0.500 0.500 2024 6 23 60484 71.029 474.983 -8.9674 0.101 -0.022 0.061 0.049 0.0365 0.500 0.500 2024 6 24 60485 73.442 475.558 -7.6833 0.103 -0.027 0.062 0.049 0.0398 0.500 0.500 2024 6 25 60486 75.261 476.283 -6.6190 0.103 -0.030 0.063 0.049 0.0448 0.500 0.500 2024 6 26 60487 77.435 476.780 -5.8161 0.099 -0.029 0.066 0.050 0.0560 0.500 0.500 2024 6 27 60488 80.029 477.311 -5.2799 0.092 -0.024 0.069 0.053 0.0696 0.500 0.500 2024 6 28 60489 82.528 477.860 -4.9504 0.084 -0.017 0.074 0.057 0.0896 0.500 0.500 2024 6 29 60490 85.103 478.230 -4.7060 0.076 -0.011 0.081 0.064 0.1147 0.500 0.500 2024 6 30 60491 88.019 478.759 -4.3848 0.071 -0.007 0.091 0.072 0.1332 0.500 0.500 2024 7 1 60492 90.879 479.282 -3.8635 0.072 -0.003 0.110 0.089 0.1437 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 5 2 60432 -107.217 -10.805 0.139 0.043 2024 5 3 60433 -107.109 -10.811 0.160 0.049 2024 5 4 60434 -107.183 -10.643 0.164 0.051 2024 5 5 60435 -107.475 -10.323 0.164 0.053 2024 5 6 60436 -107.930 -10.021 0.164 0.054 2024 5 7 60437 -108.416 -9.889 0.164 0.056 2024 5 8 60438 -108.840 -9.890 0.205 0.071 2024 5 9 60439 -109.141 -9.979 0.272 0.096 2024 5 10 60440 -109.235 -10.159 0.332 0.119 2024 5 11 60441 -109.044 -10.469 0.313 0.112 2024 5 12 60442 -108.655 -10.771 0.250 0.090 2024 5 13 60443 -108.332 -10.877 0.180 0.065 2024 5 14 60444 -108.246 -10.751 0.130 0.047 2024 5 15 60445 -108.279 -10.522 0.119 0.043 2024 5 16 60446 -108.246 -10.355 0.112 0.040 2024 5 17 60447 -108.136 -10.249 0.106 0.038 2024 5 18 60448 -108.102 -10.097 0.109 0.039 2024 5 19 60449 -108.245 -9.875 0.120 0.043 2024 5 20 60450 -108.511 -9.714 0.132 0.047 2024 5 21 60451 -108.789 -9.771 0.140 0.050 2024 5 22 60452 -109.041 -10.051 0.144 0.053 2024 5 23 60453 -109.229 -10.388 0.148 0.056 2024 5 24 60454 -109.318 -10.597 0.151 0.059 2024 5 25 60455 -109.311 -10.621 0.165 0.066 2024 5 26 60456 -109.257 -10.551 0.193 0.080 2024 5 27 60457 -109.195 -10.506 0.224 0.096 2024 5 28 60458 -109.093 -10.526 0.247 0.107 2024 5 29 60459 -108.853 -10.588 0.257 0.115 2024 5 30 60460 -108.571 -10.601 0.268 0.125 2024 5 31 60461 -108.426 -10.507 0.278 0.134 2024 6 1 60462 -108.637 -10.286 0.270 0.132 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 5 2 60432 0.1223 0.0272 15.04106715738 0.00000000474 2024 5 3 60433 0.4324 0.0261 15.04106710340 0.00000000454 2024 5 4 60434 0.7241 0.0256 15.04106705261 0.00000000446 2024 5 5 60435 0.8770 0.0262 15.04106702600 0.00000000456 2024 5 6 60436 0.8525 0.0272 15.04106703026 0.00000000474 2024 5 7 60437 0.6121 0.0266 15.04106707211 0.00000000463 2024 5 8 60438 0.2536 0.0263 15.04106713452 0.00000000458 2024 5 9 60439 -0.0864 0.0261 15.04106719371 0.00000000454 2024 5 10 60440 -0.3339 0.0257 15.04106723680 0.00000000447 2024 5 11 60441 -0.4325 0.0263 15.04106725396 0.00000000458 2024 5 12 60442 -0.4011 0.0262 15.04106724850 0.00000000456 2024 5 13 60443 -0.2993 0.0255 15.04106723077 0.00000000444 2024 5 14 60444 -0.1462 0.0247 15.04106720412 0.00000000430 2024 5 15 60445 -0.0052 0.0241 15.04106717958 0.00000000420 2024 5 16 60446 0.0995 0.0242 15.04106716135 0.00000000421 2024 5 17 60447 0.1837 0.0242 15.04106714669 0.00000000421 2024 5 18 60448 0.2399 0.0254 15.04106713691 0.00000000442 2024 5 19 60449 0.2944 0.0246 15.04106712742 0.00000000428 2024 5 20 60450 0.3159 0.0272 15.04106712368 0.00000000474 2024 5 21 60451 0.2252 0.0344 15.04106713947 0.00000000599 2024 5 22 60452 0.0736 0.0368 15.04106716586 0.00000000641 2024 5 23 60453 -0.1192 0.0271 15.04106719942 0.00000000472 2024 5 24 60454 -0.3264 0.0251 15.04106723549 0.00000000437 2024 5 25 60455 -0.4603 0.0244 15.04106725880 0.00000000425 2024 5 26 60456 -0.4897 0.0241 15.04106726392 0.00000000420 2024 5 27 60457 -0.4118 0.0238 15.04106725036 0.00000000414 2024 5 28 60458 -0.2200 0.0243 15.04106721697 0.00000000423 2024 5 29 60459 0.0348 0.0235 15.04106717261 0.00000000409 2024 5 30 60460 0.2748 0.0233 15.04106713083 0.00000000406 2024 5 31 60461 0.4904 0.0239 15.04106709330 0.00000000416 2024 6 1 60462 0.6175 0.0241 15.04106707117 0.00000000420 4 - INFORMATION ON TIME SCALES TAI - UTC = 37 s. during period [60432-60462] No leap second introduced during period [60432-60462] 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 GSFC gsf2023a.eoxy 65 68 4 12 50 46 13 60433.27 to 60461.27 112 179 17 15 93 122 IAA iaa2021a.eops 55 73 4 - 50 48 6 60433.27 to 60451.21 285 318 18 - 160 72 USNO usn2023c.eoxy 33 38 2 - 37 36 6 60433.27 to 60451.21 52 62 17 - 31 38 OPA opa2024a.eops 215 399 19 - 77 206 12 60433.27 to 60461.27 1504 4041 44 - 123 212 IVS * ivs2023a.eoxy 44 80 4 - 42 43 7 60433.27 to 60454.27 85 75 19 - 1 3 ASI asi2023a.eoxy 117 135 21 - 263 162 11 60433.27 to 60461.27 298 169 21 - 683 161 VLBI Intensive GSI * gsiint2d.eopi - - 9 - - - 8 60434.33 to 60456.33 - - 18 - - - BKG * bkg2023b.eopi - - 6 - - - 64 60432.75 to 60461.75 - - 28 - - - GSFC * gsf2023a.eopi - - 13 - - - 66 60432.75 to 60461.75 - - 37 - - - IAA * iaa2021a.eopi - - 19 - - - 76 60432.75 to 60461.75 - - 25 - - - USNO * usn2024a.eopi - - 12 - - - 52 60432.75 to 60461.75 - - 35 - - - DGF dgf2024a.eopi - - 10 - - - 35 60432.75 to 60461.75 - - 40 - - - GPS CODE COD0OPSFIN 3 3 - 0 - - 30 60432.50 to 60461.50 33 19 - 11 - - JPL JPL0OPSFIN 9 10 - 5 - - 30 60432.50 to 60461.50 48 40 - 24 - - GFZ GFZ0OPSFIN 4 4 - 1 - - 30 60432.50 to 60461.50 36 32 - 13 - - ESA ESA0OPSFIN 5 6 - 2 - - 30 60432.50 to 60461.50 36 32 - 13 - - SIO SIO0OPSFIN 25 24 - 10 - - 30 60432.50 to 60461.50 48 38 - 21 - - EMR EMR0OPSRAP 4 3 - 0 - - 30 60432.50 to 60461.50 74 60 - 11 - - IAA gnss.res 0 0 - 0 - - 29 60432.50 to 60461.50 50 54 - 27 - - GRGS GRG0OPSFIN 269 269 - 0 - - 30 60432.50 to 60461.50 38 31 - 13 - - ASI asi*.erp 10 9 - 0 - - 24 60432.50 to 60455.50 22 29 - 93 - - MIT MIT0OPSFIN 10 10 - 1 - - 30 60432.50 to 60461.50 47 38 - 15 - - IGS * IGS0OPSRAP 11 12 - 3 - - 30 60432.50 to 60461.50 37 28 - 11 - - IGS * IGS0OPSFIN 9 8 - 2 - - 30 60432.50 to 60461.50 29 23 - 12 - - SLR MCC tg*.02 238 238 - 45 - - 31 60432.00 to 60462.00 157 147 - 202 - - IAA slr_v.dat 86 87 - 5 - - 31 60432.00 to 60462.00 225 229 - 19 - - ASI asi.*.eop 66 67 - 15 - - 30 60432.50 to 60461.50 166 203 - 73 - - ILRS * ilrsa.eop 53 48 - 10 - - 30 60432.50 to 60461.50 175 127 - 33 - - BULLETIN A NEOS mark3.out 24 29 9 - - - 31 60432.00 to 60462.00 26 38 21 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html