BULLETIN B 438 2 August 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 0.054 0.048 0.0203 0.065 0.063 2024 6 2 60463 34.788 452.427 -21.0401 0.341 -0.170 0.052 0.051 0.0127 0.083 0.075 2024 6 3 60464 35.389 454.416 -21.5550 0.313 -0.148 0.052 0.051 0.0139 0.070 0.064 2024 6 4 60465 35.931 456.259 -21.8823 0.291 -0.117 0.053 0.049 0.0143 0.060 0.056 2024 6 5 60466 36.704 457.755 -21.9302 0.299 -0.070 0.053 0.048 0.0151 0.060 0.057 2024 6 6 60467 37.521 459.066 -21.6328 0.320 -0.022 0.054 0.048 0.0151 0.063 0.061 2024 6 7 60468 38.637 460.402 -21.0402 0.345 0.014 0.059 0.047 0.0141 0.065 0.065 2024 6 8 60469 40.012 461.645 -20.3105 0.367 -0.005 0.059 0.047 0.0130 0.063 0.063 2024 6 9 60470 42.019 462.994 -19.5594 0.384 -0.056 0.060 0.048 0.0132 0.059 0.058 2024 6 10 60471 43.884 464.429 -18.8461 0.395 -0.113 0.059 0.048 0.0153 0.054 0.053 2024 6 11 60472 45.760 465.216 -18.2381 0.399 -0.163 0.058 0.049 0.0188 0.051 0.048 2024 6 12 60473 47.756 466.025 -17.7505 0.385 -0.158 0.056 0.051 0.0229 0.051 0.049 2024 6 13 60474 49.953 466.673 -17.3483 0.364 -0.133 0.054 0.051 0.0212 0.053 0.050 2024 6 14 60475 51.837 467.749 -16.9626 0.342 -0.107 0.052 0.050 0.0230 0.054 0.051 2024 6 15 60476 53.594 468.954 -16.5938 0.332 -0.109 0.052 0.049 0.0257 0.061 0.057 2024 6 16 60477 55.322 470.123 -16.1539 0.332 -0.131 0.052 0.051 0.0288 0.076 0.068 2024 6 17 60478 57.200 470.996 -15.5921 0.338 -0.162 0.053 0.051 0.0336 0.092 0.081 2024 6 18 60479 58.792 472.004 -14.9779 0.348 -0.201 0.054 0.049 0.0305 0.104 0.091 2024 6 19 60480 60.704 472.600 -14.0567 0.365 -0.253 0.056 0.046 0.0279 0.097 0.085 2024 6 20 60481 62.932 473.227 -12.9113 0.385 -0.301 0.060 0.045 0.0271 0.082 0.073 2024 6 21 60482 65.533 473.706 -11.6505 0.402 -0.332 0.060 0.046 0.0264 0.068 0.062 2024 6 22 60483 68.542 474.237 -10.3126 0.406 -0.300 0.057 0.047 0.0250 0.066 0.063 2024 6 23 60484 71.028 474.967 -8.9513 0.402 -0.229 0.055 0.047 0.0214 0.067 0.069 2024 6 24 60485 73.439 475.547 -7.6735 0.393 -0.150 0.053 0.048 0.0208 0.068 0.075 2024 6 25 60486 75.266 476.263 -6.6049 0.382 -0.075 0.054 0.048 0.0193 0.068 0.080 2024 6 26 60487 77.422 476.800 -5.8127 0.375 -0.050 0.055 0.049 0.0202 0.065 0.074 2024 6 27 60488 80.051 477.269 -5.2874 0.367 -0.049 0.054 0.047 0.0203 0.058 0.064 2024 6 28 60489 82.536 477.885 -4.9609 0.354 -0.058 0.052 0.049 0.0194 0.053 0.054 2024 6 29 60490 85.080 478.199 -4.7153 0.319 -0.079 0.052 0.050 0.0179 0.052 0.053 2024 6 30 60491 88.030 478.751 -4.4074 0.274 -0.102 0.051 0.050 0.0164 0.053 0.054 2024 7 1 60492 90.782 479.038 -3.8615 0.236 -0.121 0.049 0.051 0.0163 0.054 0.056 Preliminary extension 2024 7 2 60493 93.584 478.805 -3.0221 0.214 -0.127 0.048 0.052 0.0171 0.055 0.056 2024 7 3 60494 96.532 478.970 -1.8912 0.248 -0.088 0.049 0.049 0.0178 0.060 0.066 2024 7 4 60495 99.366 478.375 -0.4931 0.303 -0.036 0.046 0.044 0.0178 0.068 0.081 2024 7 5 60496 102.077 478.182 1.1070 0.360 0.006 0.045 0.041 0.0170 0.074 0.094 2024 7 6 60497 104.382 478.129 2.7507 0.378 -0.016 0.044 0.040 0.0158 0.077 0.098 2024 7 7 60498 106.625 478.235 4.3109 0.374 -0.075 0.045 0.039 0.0152 0.078 0.101 2024 7 8 60499 108.225 478.094 5.7418 0.361 -0.141 0.045 0.039 0.0161 0.081 0.103 2024 7 9 60500 109.810 477.690 7.0001 0.348 -0.200 0.046 0.039 0.0180 0.082 0.105 2024 7 10 60501 111.636 477.258 8.0780 0.356 -0.202 0.047 0.039 0.0202 0.082 0.104 2024 7 11 60502 113.767 476.916 9.0174 0.370 -0.180 0.048 0.040 0.0225 0.082 0.103 2024 7 12 60503 116.040 477.000 9.8692 0.383 -0.149 0.050 0.040 0.0248 0.081 0.101 2024 7 13 60504 118.356 477.472 10.6270 0.380 -0.121 0.052 0.041 0.0259 0.084 0.104 2024 7 14 60505 120.886 478.339 11.3212 0.368 -0.099 0.054 0.042 0.0253 0.090 0.111 2024 7 15 60506 122.873 478.980 12.0577 0.358 -0.084 0.058 0.044 0.0271 0.096 0.118 2024 7 16 60507 125.298 479.567 12.8954 0.353 -0.079 0.060 0.045 0.0312 0.099 0.123 2024 7 17 60508 127.897 479.656 13.8613 0.491 -0.154 0.061 0.046 0.0337 0.111 0.138 2024 7 18 60509 130.492 479.448 14.9642 0.583 -0.216 0.062 0.046 0.0286 0.125 0.155 2024 7 19 60510 132.796 479.314 16.1901 0.499 -0.200 0.062 0.047 0.0239 0.134 0.167 2024 7 20 60511 134.959 479.286 17.4636 0.138 -0.021 0.063 0.047 0.0198 0.500 0.500 2024 7 21 60512 137.362 479.276 18.6717 0.140 -0.028 0.062 0.048 0.0171 0.500 0.500 2024 7 22 60513 140.102 479.010 19.7036 0.139 -0.034 0.062 0.048 0.0169 0.500 0.500 2024 7 23 60514 142.825 478.969 20.4437 0.133 -0.034 0.061 0.049 0.0182 0.500 0.500 2024 7 24 60515 145.571 479.149 20.8751 0.124 -0.029 0.061 0.050 0.0197 0.500 0.500 2024 7 25 60516 148.418 479.492 21.0805 0.112 -0.019 0.060 0.051 0.0203 0.500 0.500 2024 7 26 60517 150.912 479.554 21.1669 0.103 -0.008 0.060 0.052 0.0191 0.500 0.500 2024 7 27 60518 152.920 479.609 21.2785 0.098 0.001 0.060 0.053 0.0189 0.500 0.500 2024 7 28 60519 154.260 479.356 21.5791 0.100 0.009 0.061 0.055 0.0211 0.500 0.500 2024 7 29 60520 155.800 478.731 22.1482 0.107 0.016 0.063 0.058 0.0263 0.500 0.500 2024 7 30 60521 157.463 478.161 22.9771 0.118 0.023 0.069 0.065 0.0345 0.500 0.500 2024 7 31 60522 159.319 477.652 24.0091 0.129 0.028 0.077 0.074 0.0455 0.500 0.500 2024 8 1 60523 161.261 477.329 25.2383 0.141 0.030 0.088 0.085 0.0615 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 6 2 60463 -109.214 -10.053 0.209 0.075 2024 6 3 60464 -109.761 -9.839 0.175 0.064 2024 6 4 60465 -110.232 -9.744 0.152 0.056 2024 6 5 60466 -110.507 -9.772 0.152 0.057 2024 6 6 60467 -110.631 -9.912 0.158 0.061 2024 6 7 60468 -110.618 -10.133 0.163 0.065 2024 6 8 60469 -110.465 -10.399 0.159 0.063 2024 6 9 60470 -110.238 -10.579 0.148 0.058 2024 6 10 60471 -110.095 -10.578 0.136 0.053 2024 6 11 60472 -110.157 -10.432 0.127 0.048 2024 6 12 60473 -110.407 -10.234 0.128 0.049 2024 6 13 60474 -110.660 -10.110 0.132 0.050 2024 6 14 60475 -110.818 -10.034 0.135 0.051 2024 6 15 60476 -110.937 -9.928 0.154 0.057 2024 6 16 60477 -111.176 -9.766 0.191 0.068 2024 6 17 60478 -111.592 -9.652 0.232 0.081 2024 6 18 60479 -112.072 -9.713 0.262 0.091 2024 6 19 60480 -112.437 -9.966 0.243 0.085 2024 6 20 60481 -112.609 -10.273 0.205 0.073 2024 6 21 60482 -112.626 -10.481 0.172 0.062 2024 6 22 60483 -112.591 -10.486 0.166 0.063 2024 6 23 60484 -112.542 -10.347 0.168 0.069 2024 6 24 60485 -112.487 -10.156 0.170 0.075 2024 6 25 60486 -112.463 -9.978 0.172 0.080 2024 6 26 60487 -112.515 -9.883 0.163 0.074 2024 6 27 60488 -112.689 -9.843 0.147 0.064 2024 6 28 60489 -112.956 -9.823 0.133 0.054 2024 6 29 60490 -113.298 -9.788 0.131 0.053 2024 6 30 60491 -113.657 -9.718 0.133 0.054 2024 7 1 60492 -114.018 -9.627 0.136 0.056 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 6 2 60463 0.5760 0.0263 15.04106707840 0.00000000458 2024 6 3 60464 0.4303 0.0259 15.04106710376 0.00000000451 2024 6 4 60465 0.1961 0.0258 15.04106714453 0.00000000449 2024 6 5 60466 -0.1205 0.0254 15.04106719965 0.00000000442 2024 6 6 60467 -0.4598 0.0251 15.04106725872 0.00000000437 2024 6 7 60468 -0.6908 0.0275 15.04106729893 0.00000000479 2024 6 8 60469 -0.7593 0.0260 15.04106731085 0.00000000453 2024 6 9 60470 -0.7381 0.0247 15.04106730716 0.00000000430 2024 6 10 60471 -0.6677 0.0239 15.04106729491 0.00000000416 2024 6 11 60472 -0.5477 0.0240 15.04106727402 0.00000000418 2024 6 12 60473 -0.4364 0.0236 15.04106725464 0.00000000411 2024 6 13 60474 -0.3783 0.0235 15.04106724453 0.00000000409 2024 6 14 60475 -0.3906 0.0238 15.04106724667 0.00000000414 2024 6 15 60476 -0.4116 0.0241 15.04106725032 0.00000000420 2024 6 16 60477 -0.4699 0.0249 15.04106726047 0.00000000433 2024 6 17 60478 -0.5705 0.0264 15.04106727799 0.00000000460 2024 6 18 60479 -0.7738 0.0297 15.04106731338 0.00000000517 2024 6 19 60480 -1.0414 0.0281 15.04106735996 0.00000000489 2024 6 20 60481 -1.2057 0.0266 15.04106738857 0.00000000463 2024 6 21 60482 -1.3151 0.0262 15.04106740761 0.00000000456 2024 6 22 60483 -1.3627 0.0268 15.04106741590 0.00000000467 2024 6 23 60484 -1.3427 0.0256 15.04106741242 0.00000000446 2024 6 24 60485 -1.1894 0.0360 15.04106738573 0.00000000627 2024 6 25 60486 -0.9415 0.0319 15.04106734257 0.00000000555 2024 6 26 60487 -0.6492 0.0289 15.04106729169 0.00000000503 2024 6 27 60488 -0.4096 0.0267 15.04106724998 0.00000000465 2024 6 28 60489 -0.2650 0.0271 15.04106722480 0.00000000472 2024 6 29 60490 -0.2533 0.0267 15.04106722277 0.00000000465 2024 6 30 60491 -0.4016 0.0270 15.04106724858 0.00000000470 2024 7 1 60492 -0.6906 0.0271 15.04106729889 0.00000000472 4 - INFORMATION ON TIME SCALES TAI - UTC = 37 s. during period [60463-60492] No leap second introduced during period [60463-60492] 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 60 64 3 10 41 47 12 60465.21 to 60489.27 266 176 25 18 89 79 USNO usn2023c.eoxy 50 64 4 - 44 47 10 60465.21 to 60489.27 135 199 22 - 50 57 OPA opa2024a.eops 196 324 14 - 68 147 4 60465.21 to 60479.21 263 465 57 - 37 97 IVS * ivs2023a.eoxy 78 160 7 - 39 42 7 60465.21 to 60489.28 100 174 16 - 3 7 ASI asi2023a.eoxy 148 177 14 - 170 156 12 60465.21 to 60489.27 165 360 17 - 171 212 VIE vie2023a.eopxy 291 459 20 - 52 63 19 60465.00 to 60490.00 447 827 25 - 84 111 VLBI Intensive GSI * gsiint2d.eopi - - 10 - - - 7 60463.33 to 60491.33 - - 18 - - - BKG * bkg2023b.eopi - - 7 - - - 59 60463.25 to 60491.33 - - 67 - - - GSFC * gsf2023a.eopi - - 14 - - - 67 60463.25 to 60491.75 - - 46 - - - IAA * iaa2021a.eopi - - 24 - - - 71 60463.25 to 60491.33 - - 66 - - - USNO * usn2024a.eopi - - 12 - - - 45 60463.33 to 60491.75 - - 45 - - - VIE vie2023a.eopxy - - 20 - - - 19 60465.00 to 60490.00 - - 25 - - - DGFI dgf2024a.eopi - - 11 - - - 34 60463.25 to 60491.33 - - 36 - - - GPS CODE COD0OPSFIN 3 3 - 0 - - 29 60463.50 to 60491.50 26 21 - 11 - - JPL JPL0OPSFIN 9 10 - 4 - - 29 60463.50 to 60491.50 43 33 - 23 - - GFZ GFZ0OPSFIN 4 4 - 1 - - 29 60463.50 to 60491.50 35 32 - 11 - - ESA ESA0OPSFIN 6 6 - 2 - - 29 60463.50 to 60491.50 32 26 - 11 - - SIO SIO0OPSFIN 24 23 - 9 - - 29 60463.50 to 60491.50 41 31 - 15 - - EMR EMR0OPSRAP 4 3 - 0 - - 29 60463.50 to 60491.50 51 68 - 13 - - IAA gnss.res 0 0 - 0 - - 29 60463.50 to 60491.50 48 58 - 21 - - GRGS GRG0OPSFIN 273 273 - 0 - - 29 60463.50 to 60491.50 33 28 - 12 - - ASI asi*.erp 10 10 - 0 - - 7 60463.50 to 60469.50 26 29 - 285 - - MIT MIT0OPSFIN 10 10 - 1 - - 29 60463.50 to 60491.50 44 38 - 13 - - IGS * IGS0OPSRAP 14 15 - 3 - - 29 60463.50 to 60491.50 30 26 - 12 - - IGS * IGS0OPSFIN 8 10 - 2 - - 29 60463.50 to 60491.50 28 25 - 12 - - SLR MCC tg*.02 234 244 - 47 - - 30 60463.00 to 60492.00 185 185 - 237 - - IAA slr_v.dat 81 85 - 5 - - 29 60463.00 to 60492.00 247 221 - 23 - - ASI asi.*.eop 67 75 - 18 - - 29 60463.50 to 60491.50 217 200 - 78 - - ILRS * ilrsa.eop 45 52 - 10 - - 29 60463.50 to 60491.50 157 152 - 37 - - BULLETIN A NEOS mark3.out 16 19 8 - - - 30 60463.00 to 60492.00 37 36 34 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html