BULLETIN B 439 1 September 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 0.049 0.0220 0.058 0.055 2024 7 2 60493 93.584 478.805 -3.0221 0.214 -0.124 0.048 0.052 0.0171 0.049 0.046 2024 7 3 60494 96.532 478.970 -1.8912 0.246 -0.119 0.049 0.049 0.0178 0.049 0.047 2024 7 4 60495 99.367 478.355 -0.4934 0.299 -0.109 0.049 0.047 0.0235 0.050 0.049 2024 7 5 60496 102.081 478.183 1.1071 0.356 -0.102 0.049 0.047 0.0250 0.051 0.051 2024 7 6 60497 104.384 478.116 2.7521 0.383 -0.121 0.049 0.048 0.0230 0.053 0.054 2024 7 7 60498 106.626 478.237 4.3158 0.391 -0.155 0.049 0.047 0.0201 0.058 0.058 2024 7 8 60499 108.222 478.077 5.7452 0.390 -0.189 0.051 0.049 0.0194 0.063 0.064 2024 7 9 60500 109.808 477.690 7.0037 0.383 -0.218 0.053 0.049 0.0201 0.067 0.068 2024 7 10 60501 111.643 477.240 8.0831 0.378 -0.218 0.053 0.049 0.0215 0.064 0.063 2024 7 11 60502 113.769 476.907 9.0281 0.372 -0.204 0.053 0.049 0.0302 0.057 0.055 2024 7 12 60503 116.050 476.990 9.8811 0.364 -0.186 0.053 0.049 0.0268 0.051 0.048 2024 7 13 60504 118.369 477.464 10.6377 0.352 -0.169 0.052 0.050 0.0251 0.050 0.047 2024 7 14 60505 120.874 478.332 11.3236 0.339 -0.154 0.051 0.049 0.0189 0.051 0.048 2024 7 15 60506 122.868 478.987 12.0611 0.332 -0.142 0.051 0.051 0.0194 0.052 0.048 2024 7 16 60507 125.294 479.556 12.8989 0.333 -0.133 0.053 0.048 0.0212 0.053 0.049 2024 7 17 60508 127.861 479.657 13.8727 0.363 -0.131 0.053 0.046 0.0221 0.055 0.050 2024 7 18 60509 130.527 479.433 14.9814 0.402 -0.133 0.054 0.046 0.0217 0.058 0.053 2024 7 19 60510 132.780 479.318 16.2115 0.437 -0.142 0.054 0.047 0.0203 0.061 0.056 2024 7 20 60511 134.987 479.265 17.4865 0.440 -0.167 0.055 0.047 0.0189 0.061 0.057 2024 7 21 60512 137.353 479.268 18.6901 0.422 -0.199 0.055 0.048 0.0181 0.061 0.058 2024 7 22 60513 140.090 479.014 19.7069 0.395 -0.230 0.058 0.048 0.0194 0.060 0.060 2024 7 23 60514 142.828 478.944 20.4461 0.365 -0.256 0.058 0.051 0.0219 0.059 0.061 2024 7 24 60515 145.562 479.155 20.8869 0.344 -0.261 0.060 0.051 0.0232 0.058 0.059 2024 7 25 60516 148.419 479.456 21.0987 0.327 -0.253 0.059 0.051 0.0225 0.056 0.054 2024 7 26 60517 150.890 479.581 21.1888 0.314 -0.235 0.059 0.050 0.0205 0.055 0.051 2024 7 27 60518 152.928 479.577 21.3034 0.305 -0.198 0.054 0.046 0.0192 0.057 0.052 2024 7 28 60519 154.197 479.385 21.6127 0.301 -0.152 0.061 0.051 0.0186 0.062 0.056 2024 7 29 60520 155.822 478.682 22.1988 0.305 -0.108 0.061 0.051 0.0220 0.068 0.062 2024 7 30 60521 157.410 478.204 23.0289 0.320 -0.073 0.061 0.054 0.0253 0.072 0.065 2024 7 31 60522 159.363 477.611 24.0625 0.367 -0.074 0.060 0.053 0.0285 0.074 0.067 2024 8 1 60523 161.264 477.332 25.2828 0.418 -0.089 0.063 0.052 0.0301 0.075 0.070 Preliminary extension 2024 8 2 60524 163.632 476.660 26.5983 0.457 -0.108 0.063 0.052 0.0294 0.076 0.072 2024 8 3 60525 166.551 476.243 27.9122 0.437 -0.118 0.056 0.048 0.0266 0.079 0.073 2024 8 4 60526 168.683 476.171 29.1597 0.378 -0.118 0.050 0.045 0.0236 0.084 0.075 2024 8 5 60527 170.308 475.812 30.2698 0.305 -0.110 0.047 0.043 0.0222 0.089 0.077 2024 8 6 60528 171.986 475.209 31.2209 0.229 -0.090 0.044 0.042 0.0220 0.093 0.078 2024 8 7 60529 173.746 474.102 32.0365 0.168 -0.037 0.043 0.040 0.0226 0.100 0.085 2024 8 8 60530 175.507 472.905 32.7348 0.124 0.022 0.042 0.039 0.0236 0.110 0.098 2024 8 9 60531 177.668 471.805 33.3742 0.101 0.068 0.042 0.038 0.0238 0.119 0.108 2024 8 10 60532 180.072 470.683 34.0411 0.139 0.048 0.042 0.037 0.0214 0.113 0.106 2024 8 11 60533 182.350 469.737 34.8190 0.213 -0.010 0.042 0.036 0.0182 0.099 0.097 2024 8 12 60534 184.120 468.961 35.7487 0.294 -0.081 0.042 0.036 0.0158 0.084 0.087 2024 8 13 60535 185.845 467.802 36.8105 0.366 -0.149 0.042 0.035 0.0145 0.074 0.081 2024 8 14 60536 187.706 466.891 38.0170 0.458 -0.220 0.042 0.035 0.0148 0.092 0.106 2024 8 15 60537 189.330 465.798 39.3450 0.486 -0.251 0.043 0.035 0.0161 0.114 0.136 2024 8 16 60538 190.887 464.836 40.7226 0.387 -0.207 0.044 0.035 0.0166 0.129 0.156 2024 8 17 60539 192.608 463.743 42.0367 0.183 -0.012 0.046 0.036 0.0165 0.500 0.500 2024 8 18 60540 194.539 463.021 43.1582 0.186 -0.021 0.048 0.037 0.0165 0.500 0.500 2024 8 19 60541 196.095 462.501 43.9840 0.181 -0.026 0.051 0.039 0.0166 0.500 0.500 2024 8 20 60542 197.164 461.534 44.4459 0.170 -0.025 0.053 0.041 0.0170 0.500 0.500 2024 8 21 60543 198.491 460.315 44.5871 0.155 -0.016 0.055 0.042 0.0179 0.500 0.500 2024 8 22 60544 200.001 459.199 44.5324 0.139 -0.004 0.056 0.043 0.0182 0.500 0.500 2024 8 23 60545 201.374 458.213 44.4632 0.128 0.010 0.057 0.044 0.0183 0.500 0.500 2024 8 24 60546 202.585 457.231 44.5855 0.125 0.023 0.058 0.044 0.0184 0.500 0.500 2024 8 25 60547 203.457 456.243 44.9796 0.131 0.035 0.058 0.046 0.0196 0.500 0.500 2024 8 26 60548 204.619 454.999 45.6443 0.143 0.046 0.061 0.046 0.0220 0.500 0.500 2024 8 27 60549 205.644 453.822 46.5689 0.157 0.054 0.064 0.048 0.0248 0.500 0.500 2024 8 28 60550 206.215 452.440 47.6571 0.171 0.060 0.070 0.050 0.0285 0.500 0.500 2024 8 29 60551 206.795 451.051 48.8053 0.184 0.061 0.079 0.054 0.0342 0.500 0.500 2024 8 30 60552 207.517 449.843 49.9453 0.195 0.058 0.093 0.060 0.0424 0.500 0.500 2024 8 31 60553 208.120 448.709 50.9518 0.204 0.053 0.113 0.068 0.0537 0.500 0.500 2024 9 1 60554 208.526 447.475 51.7849 0.212 0.048 0.150 0.083 0.0672 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 7 2 60493 -114.375 -9.560 0.122 0.046 2024 7 3 60494 -114.587 -9.597 0.124 0.047 2024 7 4 60495 -114.645 -9.779 0.125 0.049 2024 7 5 60496 -114.548 -10.066 0.127 0.051 2024 7 6 60497 -114.415 -10.336 0.133 0.054 2024 7 7 60498 -114.322 -10.420 0.146 0.058 2024 7 8 60499 -114.330 -10.264 0.160 0.064 2024 7 9 60500 -114.478 -9.990 0.169 0.068 2024 7 10 60501 -114.737 -9.763 0.161 0.063 2024 7 11 60502 -115.029 -9.680 0.143 0.055 2024 7 12 60503 -115.246 -9.670 0.128 0.048 2024 7 13 60504 -115.398 -9.623 0.126 0.047 2024 7 14 60505 -115.627 -9.535 0.128 0.048 2024 7 15 60506 -116.074 -9.519 0.130 0.048 2024 7 16 60507 -116.658 -9.660 0.132 0.049 2024 7 17 60508 -117.045 -9.901 0.138 0.050 2024 7 18 60509 -117.078 -10.104 0.146 0.053 2024 7 19 60510 -116.859 -10.195 0.154 0.056 2024 7 20 60511 -116.672 -10.214 0.154 0.057 2024 7 21 60512 -116.590 -10.186 0.152 0.058 2024 7 22 60513 -116.573 -10.093 0.150 0.060 2024 7 23 60514 -116.656 -9.952 0.148 0.061 2024 7 24 60515 -116.924 -9.851 0.146 0.059 2024 7 25 60516 -117.391 -9.881 0.142 0.054 2024 7 26 60517 -117.884 -9.998 0.138 0.051 2024 7 27 60518 -118.206 -10.063 0.143 0.052 2024 7 28 60519 -118.318 -10.010 0.157 0.056 2024 7 29 60520 -118.360 -9.878 0.171 0.062 2024 7 30 60521 -118.480 -9.761 0.182 0.065 2024 7 31 60522 -118.616 -9.767 0.186 0.067 2024 8 1 60523 -118.672 -9.928 0.189 0.070 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 7 2 60493 -0.9923 0.0369 15.04106735142 0.00000000642 2024 7 3 60494 -1.2694 0.0327 15.04106739966 0.00000000569 2024 7 4 60495 -1.5138 0.0254 15.04106744220 0.00000000442 2024 7 5 60496 -1.6508 0.0246 15.04106746605 0.00000000428 2024 7 6 60497 -1.6238 0.0240 15.04106746135 0.00000000418 2024 7 7 60498 -1.5031 0.0241 15.04106744034 0.00000000420 2024 7 8 60499 -1.3478 0.0232 15.04106741330 0.00000000404 2024 7 9 60500 -1.1671 0.0231 15.04106738185 0.00000000402 2024 7 10 60501 -1.0020 0.0227 15.04106735310 0.00000000395 2024 7 11 60502 -0.8896 0.0224 15.04106733354 0.00000000390 2024 7 12 60503 -0.8062 0.0221 15.04106731902 0.00000000385 2024 7 13 60504 -0.7219 0.0225 15.04106730434 0.00000000392 2024 7 14 60505 -0.6991 0.0251 15.04106730037 0.00000000437 2024 7 15 60506 -0.7808 0.0243 15.04106731460 0.00000000423 2024 7 16 60507 -0.9018 0.0257 15.04106733566 0.00000000447 2024 7 17 60508 -1.0477 0.0263 15.04106736106 0.00000000458 2024 7 18 60509 -1.1772 0.0249 15.04106738360 0.00000000433 2024 7 19 60510 -1.2694 0.0244 15.04106739966 0.00000000425 2024 7 20 60511 -1.2613 0.0250 15.04106739825 0.00000000435 2024 7 21 60512 -1.1280 0.0259 15.04106737504 0.00000000451 2024 7 22 60513 -0.8867 0.0270 15.04106733303 0.00000000470 2024 7 23 60514 -0.5877 0.0278 15.04106728098 0.00000000484 2024 7 24 60515 -0.3058 0.0314 15.04106723191 0.00000000547 2024 7 25 60516 -0.1308 0.0284 15.04106720144 0.00000000494 2024 7 26 60517 -0.0797 0.0266 15.04106719255 0.00000000463 2024 7 27 60518 -0.1864 0.0239 15.04106721112 0.00000000416 2024 7 28 60519 -0.4397 0.0252 15.04106725522 0.00000000439 2024 7 29 60520 -0.7198 0.0252 15.04106730398 0.00000000439 2024 7 30 60521 -0.9432 0.0268 15.04106734287 0.00000000467 2024 7 31 60522 -1.1317 0.0257 15.04106737568 0.00000000447 2024 8 1 60523 -1.2873 0.0263 15.04106740277 0.00000000458 4 - INFORMATION ON TIME SCALES TAI - UTC = 37 s. during period [60493-60523] No leap second introduced during period [60493-60523] 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 50 58 3 10 37 42 12 60493.21 to 60523.00 150 159 21 13 22 58 USNO usn2023c.eoxy 45 60 3 - 43 45 10 60493.21 to 60521.21 149 278 24 - 52 66 OPA opa2024a.eops 216 319 16 - 62 218 9 60500.21 to 60523.00 2642 2368 270 - 420 821 IVS * ivs2023a.eoxy 47 112 5 - 35 40 9 60493.21 to 60521.21 125 253 15 - 4 3 ASI asi2023a.eoxy 103 125 22 - 180 150 11 60493.21 to 60521.21 219 402 33 - 103 188 VIE vie2023a.eopxy 452 991 35 - - - 20 60493.00 to 60522.00 543 867 25 - - - VLBI Intensive GSI * gsiint2d.eopi - - 12 - - - 8 60497.33 to 60519.33 - - 34 - - - BKG * bkg2023b.eopi - - 7 - - - 64 60493.75 to 60522.75 - - 49 - - - GSFC * gsf2023a.eopi - - 12 - - - 75 60493.75 to 60523.00 - - 51 - - - IAA * iaa2021a.eopi - - 31 - - - 2 60493.00 to 60493.75 - - 19 - - - USNO * usn2024a.eopi - - 10 - - - 50 60493.00 to 60522.75 - - 27 - - - VIE vie2023a.eopxy - - 35 - - - 20 60493.00 to 60522.00 - - 25 - - - DGFI dgf2024a.eopi - - 8 - - - 37 60493.75 to 60522.75 - - 32 - - - GPS CODE COD0OPSFIN 3 3 - 0 - - 30 60493.50 to 60522.50 31 29 - 13 - - JPL JPL0OPSFIN 9 10 - 5 - - 30 60493.50 to 60522.50 49 43 - 21 - - GFZ GFZ0OPSFIN 4 4 - 1 - - 30 60493.50 to 60522.50 35 34 - 12 - - ESA ESA0OPSFIN 6 6 - 2 - - 30 60493.50 to 60522.50 37 29 - 13 - - SIO SIO0OPSFIN 25 24 - 10 - - 30 60493.50 to 60522.50 43 44 - 19 - - EMR EMR0OPSRAP 4 3 - 0 - - 30 60493.50 to 60522.50 75 53 - 16 - - IAA gnss.res 0 0 - 0 - - 30 60493.50 to 60522.50 56 57 - 28 - - GRGS GRG0OPSFIN 277 277 - 0 - - 30 60493.50 to 60522.50 33 27 - 14 - - ASI asi*.erp 10 9 - 0 - - 11 60512.50 to 60522.50 23 31 - 98 - - MIT MIT0OPSFIN 10 10 - 1 - - 30 60493.50 to 60522.50 51 38 - 15 - - IGS * IGS0OPSRAP 14 12 - 3 - - 30 60493.50 to 60522.50 35 32 - 12 - - IGS * IGS0OPSFIN 8 10 - 2 - - 30 60493.50 to 60522.50 32 28 - 12 - - SLR MCC tg*.02 227 270 - 39 - - 31 60493.00 to 60523.00 127 295 - 271 - - IAA slr_v.dat 83 92 - 5 - - 28 60493.00 to 60523.00 313 297 - 27 - - ASI asi.*.eop 69 81 - 20 - - 30 60493.50 to 60522.50 213 212 - 78 - - ILRS * ilrsa.eop 49 57 - 12 - - 30 60493.50 to 60522.50 166 149 - 34 - - BULLETIN A NEOS mark3.out 15 20 11 - - - 31 60493.00 to 60523.00 43 61 23 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html