BULLETIN B 440 2 October 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 0.052 0.047 0.0262 0.091 0.077 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 166.553 476.245 27.9117 0.437 -0.118 0.059 0.053 0.0266 0.079 0.073 2024 8 4 60526 168.688 476.171 29.1609 0.378 -0.118 0.057 0.053 0.0236 0.084 0.074 2024 8 5 60527 170.304 475.811 30.2719 0.305 -0.110 0.054 0.052 0.0222 0.089 0.076 2024 8 6 60528 171.988 475.196 31.2238 0.229 -0.090 0.052 0.054 0.0220 0.093 0.077 2024 8 7 60529 173.745 474.095 32.0407 0.168 -0.037 0.050 0.053 0.0232 0.100 0.084 2024 8 8 60530 175.510 472.903 32.7414 0.124 0.022 0.049 0.050 0.0246 0.110 0.096 2024 8 9 60531 177.668 471.802 33.3818 0.101 0.068 0.050 0.050 0.0254 0.119 0.106 2024 8 10 60532 180.065 470.686 34.0489 0.139 0.050 0.050 0.048 0.0240 0.113 0.101 2024 8 11 60533 182.351 469.740 34.8276 0.213 -0.008 0.051 0.047 0.0220 0.098 0.087 2024 8 12 60534 184.117 468.968 35.7574 0.294 -0.078 0.051 0.048 0.0213 0.080 0.070 2024 8 13 60535 185.850 467.801 36.8182 0.366 -0.149 0.052 0.046 0.0224 0.067 0.058 2024 8 14 60536 187.699 466.894 38.0187 0.376 -0.185 0.050 0.044 0.0384 0.084 0.072 2024 8 15 60537 189.325 465.787 39.3478 0.361 -0.202 0.050 0.044 0.0476 0.117 0.097 2024 8 16 60538 190.885 464.850 40.7238 0.340 -0.209 0.051 0.043 0.0481 0.145 0.120 2024 8 17 60539 192.601 463.731 42.0374 0.345 -0.203 0.054 0.043 0.0414 0.144 0.118 2024 8 18 60540 194.545 463.038 43.1576 0.363 -0.187 0.054 0.045 0.0314 0.129 0.103 2024 8 19 60541 196.074 462.503 43.9888 0.378 -0.167 0.056 0.046 0.0310 0.113 0.086 2024 8 20 60542 197.145 461.519 44.4571 0.382 -0.146 0.057 0.049 0.0289 0.102 0.074 2024 8 21 60543 198.487 460.312 44.6020 0.347 -0.134 0.058 0.050 0.0278 0.096 0.069 2024 8 22 60544 200.005 459.203 44.5431 0.297 -0.125 0.058 0.049 0.0265 0.090 0.065 2024 8 23 60545 201.355 458.204 44.4697 0.250 -0.118 0.057 0.048 0.0241 0.084 0.061 2024 8 24 60546 202.576 457.232 44.5989 0.234 -0.112 0.054 0.046 0.0209 0.078 0.058 2024 8 25 60547 203.435 456.243 44.9965 0.241 -0.106 0.052 0.046 0.0180 0.068 0.054 2024 8 26 60548 204.607 455.033 45.6601 0.262 -0.095 0.052 0.047 0.0174 0.058 0.049 2024 8 27 60549 205.632 453.808 46.5867 0.293 -0.077 0.050 0.046 0.0179 0.050 0.046 2024 8 28 60550 206.171 452.449 47.6850 0.336 -0.034 0.049 0.045 0.0190 0.054 0.052 2024 8 29 60551 206.801 451.045 48.8454 0.380 0.013 0.050 0.045 0.0198 0.063 0.063 2024 8 30 60552 207.459 449.832 49.9923 0.417 0.053 0.049 0.045 0.0199 0.070 0.072 2024 8 31 60553 208.170 448.701 51.0170 0.421 0.052 0.050 0.044 0.0218 0.079 0.081 2024 9 1 60554 208.342 447.441 51.8497 0.404 0.025 0.051 0.044 0.0260 0.094 0.096 Preliminary extension 2024 9 2 60555 208.837 445.518 52.4731 0.378 -0.012 0.051 0.044 0.0343 0.110 0.112 2024 9 3 60556 209.621 443.870 52.9365 0.349 -0.051 0.047 0.041 0.0446 0.122 0.124 2024 9 4 60557 210.377 442.793 53.3066 0.328 -0.079 0.045 0.039 0.0427 0.111 0.111 2024 9 5 60558 211.373 441.884 53.6020 0.315 -0.097 0.044 0.037 0.0339 0.089 0.087 2024 9 6 60559 212.395 440.900 53.8386 0.309 -0.104 0.043 0.036 0.0263 0.070 0.066 2024 9 7 60560 213.518 439.898 54.0849 0.330 -0.079 0.043 0.035 0.0204 0.064 0.060 2024 9 8 60561 214.129 438.683 54.4490 0.366 -0.036 0.043 0.034 0.0163 0.059 0.057 2024 9 9 60562 214.688 437.232 54.9733 0.404 0.005 0.042 0.034 0.0144 0.054 0.053 2024 9 10 60563 215.290 435.720 55.6390 0.437 0.034 0.042 0.034 0.0139 0.051 0.050 2024 9 11 60564 215.939 434.117 56.4251 0.445 0.016 0.042 0.034 0.0145 0.058 0.062 2024 9 12 60565 216.330 432.595 57.2773 0.440 -0.025 0.043 0.034 0.0153 0.071 0.080 2024 9 13 60566 217.413 430.807 58.0989 0.429 -0.071 0.043 0.035 0.0155 0.082 0.096 2024 9 14 60567 218.949 429.367 58.7899 0.504 -0.144 0.044 0.036 0.0157 0.095 0.111 2024 9 15 60568 220.132 427.936 59.2642 0.584 -0.211 0.046 0.038 0.0148 0.112 0.132 2024 9 16 60569 220.936 426.775 59.3945 0.581 -0.234 0.048 0.040 0.0153 0.127 0.148 2024 9 17 60570 221.608 425.565 59.1527 0.439 -0.187 0.049 0.042 0.0172 0.135 0.158 2024 9 18 60571 221.819 424.256 58.6032 0.192 0.017 0.051 0.043 0.0195 0.500 0.500 2024 9 19 60572 221.484 423.026 57.9062 0.174 0.029 0.053 0.044 0.0194 0.500 0.500 2024 9 20 60573 221.471 421.704 57.3026 0.163 0.042 0.054 0.044 0.0159 0.500 0.500 2024 9 21 60574 222.247 420.819 56.9010 0.163 0.056 0.055 0.045 0.0128 0.500 0.500 2024 9 22 60575 223.185 420.163 56.7758 0.172 0.069 0.055 0.046 0.0115 0.500 0.500 2024 9 23 60576 223.863 419.462 56.9322 0.187 0.081 0.056 0.047 0.0111 0.500 0.500 2024 9 24 60577 224.445 418.697 57.3003 0.204 0.090 0.057 0.049 0.0110 0.500 0.500 2024 9 25 60578 224.847 417.569 57.7656 0.218 0.095 0.058 0.051 0.0108 0.500 0.500 2024 9 26 60579 224.958 416.389 58.2340 0.231 0.095 0.059 0.054 0.0108 0.500 0.500 2024 9 27 60580 225.036 414.971 58.6234 0.242 0.091 0.060 0.059 0.0111 0.500 0.500 2024 9 28 60581 225.367 413.674 58.8827 0.253 0.086 0.062 0.067 0.0116 0.500 0.500 2024 9 29 60582 225.335 412.054 59.0290 0.262 0.084 0.065 0.080 0.0130 0.500 0.500 2024 9 30 60583 225.558 409.922 59.0581 0.266 0.084 0.070 0.099 0.0158 0.500 0.500 2024 10 1 60584 226.089 407.881 58.9982 0.265 0.087 0.077 0.124 0.0202 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 8 2 60524 -118.561 -10.198 0.192 0.072 2024 8 3 60525 -118.441 -10.421 0.198 0.073 2024 8 4 60526 -118.409 -10.412 0.211 0.074 2024 8 5 60527 -118.506 -10.100 0.224 0.076 2024 8 6 60528 -118.729 -9.628 0.234 0.077 2024 8 7 60529 -119.029 -9.231 0.251 0.084 2024 8 8 60530 -119.362 -9.084 0.277 0.096 2024 8 9 60531 -119.615 -9.131 0.300 0.106 2024 8 10 60532 -119.617 -9.263 0.285 0.101 2024 8 11 60533 -119.530 -9.417 0.245 0.087 2024 8 12 60534 -119.621 -9.664 0.201 0.070 2024 8 13 60535 -119.929 -10.042 0.169 0.058 2024 8 14 60536 -120.278 -10.390 0.212 0.072 2024 8 15 60537 -120.286 -10.532 0.293 0.097 2024 8 16 60538 -119.977 -10.446 0.365 0.120 2024 8 17 60539 -119.591 -10.279 0.362 0.118 2024 8 18 60540 -119.349 -10.141 0.325 0.103 2024 8 19 60541 -119.281 -9.986 0.284 0.086 2024 8 20 60542 -119.406 -9.792 0.255 0.074 2024 8 21 60543 -119.837 -9.705 0.241 0.069 2024 8 22 60544 -120.402 -9.844 0.225 0.065 2024 8 23 60545 -120.854 -10.086 0.211 0.061 2024 8 24 60546 -121.057 -10.185 0.197 0.058 2024 8 25 60547 -121.129 -10.082 0.172 0.054 2024 8 26 60548 -121.181 -9.944 0.145 0.049 2024 8 27 60549 -121.217 -9.917 0.125 0.046 2024 8 28 60550 -121.196 -9.967 0.135 0.052 2024 8 29 60551 -121.084 -10.029 0.157 0.063 2024 8 30 60552 -120.836 -10.079 0.176 0.072 2024 8 31 60553 -120.529 -10.115 0.198 0.081 2024 9 1 60554 -120.252 -10.024 0.235 0.096 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 8 2 60524 -1.3291 0.0249 15.04106741005 0.00000000433 2024 8 3 60525 -1.2890 0.0246 15.04106740307 0.00000000428 2024 8 4 60526 -1.1917 0.0246 15.04106738613 0.00000000428 2024 8 5 60527 -1.0318 0.0242 15.04106735829 0.00000000421 2024 8 6 60528 -0.8781 0.0240 15.04106733154 0.00000000418 2024 8 7 60529 -0.7564 0.0247 15.04106731035 0.00000000430 2024 8 8 60530 -0.6609 0.0245 15.04106729372 0.00000000427 2024 8 9 60531 -0.6407 0.0246 15.04106729021 0.00000000428 2024 8 10 60532 -0.7091 0.0248 15.04106730212 0.00000000432 2024 8 11 60533 -0.8492 0.0242 15.04106732650 0.00000000421 2024 8 12 60534 -1.0013 0.0245 15.04106735298 0.00000000427 2024 8 13 60535 -1.1334 0.0248 15.04106737598 0.00000000432 2024 8 14 60536 -1.2750 0.0251 15.04106740063 0.00000000437 2024 8 15 60537 -1.3703 0.0258 15.04106741722 0.00000000449 2024 8 16 60538 -1.3661 0.0259 15.04106741649 0.00000000451 2024 8 17 60539 -1.2407 0.0262 15.04106739466 0.00000000456 2024 8 18 60540 -0.9891 0.0255 15.04106735086 0.00000000444 2024 8 19 60541 -0.6523 0.0259 15.04106729223 0.00000000451 2024 8 20 60542 -0.2934 0.0259 15.04106722975 0.00000000451 2024 8 21 60543 -0.0175 0.0268 15.04106718172 0.00000000467 2024 8 22 60544 0.0993 0.0274 15.04106716138 0.00000000477 2024 8 23 60545 0.0057 0.0266 15.04106717768 0.00000000463 2024 8 24 60546 -0.2607 0.0265 15.04106722405 0.00000000461 2024 8 25 60547 -0.5398 0.0264 15.04106727264 0.00000000460 2024 8 26 60548 -0.8030 0.0259 15.04106731846 0.00000000451 2024 8 27 60549 -1.0318 0.0263 15.04106735829 0.00000000458 2024 8 28 60550 -1.1473 0.0288 15.04106737840 0.00000000501 2024 8 29 60551 -1.1650 0.0285 15.04106738148 0.00000000496 2024 8 30 60552 -1.1013 0.0271 15.04106737039 0.00000000472 2024 8 31 60553 -0.9364 0.0267 15.04106734168 0.00000000465 2024 9 1 60554 -0.7288 0.0279 15.04106730554 0.00000000486 4 - INFORMATION ON TIME SCALES TAI - UTC = 37 s. during period [60524-60554] No leap second introduced during period [60524-60554] 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 55 58 3 9 43 43 12 60524.27 to 60552.27 244 140 25 21 89 68 USNO usn2024a.eoxy 66 72 4 - 60 58 10 60524.27 to 60552.27 167 91 22 - 67 87 OPA opa2024a.eops 231 273 19 - 94 199 11 60524.27 to 60552.27 1245 2038 200 - 221 335 IVS * ivs2023a.eoxy 76 127 5 - 57 57 9 60524.27 to 60552.26 114 115 22 - 5 3 ASI asi2023a.eoxy 139 152 18 - 185 191 11 60524.27 to 60552.27 290 379 21 - 268 198 VIE vie2023a.eopxy 348 743 20 - - - 16 60529.00 to 60550.00 754 886 22 - - - VIE vie2023a.eoxy - - - - 56 50 9 60530.00 to 60549.21 - - - - 96 109 VLBI Intensive GSI * gsiint2d.eopi - - 14 - - - 8 60525.33 to 60553.33 - - 43 - - - BKG * bkg2023b.eopi - - 9 - - - 64 60524.00 to 60553.33 - - 48 - - - GSFC * gsf2023a.eopi - - 12 - - - 74 60524.00 to 60553.33 - - 33 - - - USNO * usn2024a.eopi - - 10 - - - 63 60524.00 to 60553.33 - - 38 - - - VIE vie2023a.eopi - - 9 - - - 94 60524.00 to 60553.33 - - 56 - - - DGFI dgf2024a.eopi - - 8 - - - 35 60524.75 to 60553.33 - - 60 - - - GPS CODE COD0OPSFIN 3 3 - 0 - - 30 60524.50 to 60553.50 29 22 - 11 - - JPL JPL0OPSFIN 9 10 - 5 - - 30 60524.50 to 60553.50 56 29 - 15 - - GFZ GFZ0OPSFIN 4 4 - 1 - - 30 60524.50 to 60553.50 30 37 - 11 - - ESA ESA0OPSFIN 6 6 - 3 - - 30 60524.50 to 60553.50 32 25 - 11 - - SIO SIO0OPSFIN 26 25 - 10 - - 30 60524.50 to 60553.50 45 31 - 14 - - EMR EMR0OPSRAP 4 3 - 1 - - 30 60524.50 to 60553.50 55 75 - 13 - - IAA gnss.res 0 0 - 0 - - 30 60524.50 to 60553.50 64 53 - 17 - - GRGS GRG0OPSFIN 288 288 - 0 - - 30 60524.50 to 60553.50 30 25 - 12 - - ASI asi*.erp 10 10 - 0 - - 2 60524.50 to 60525.50 9 8 - 19 - - MIT MIT0OPSFIN 10 10 - 1 - - 30 60524.50 to 60553.50 37 35 - 12 - - IGS * IGS0OPSRAP 10 9 - 3 - - 30 60524.50 to 60553.50 30 23 - 8 - - IGS * IGS0OPSFIN 7 10 - 2 - - 30 60524.50 to 60553.50 26 19 - 10 - - SLR MCC tg*.02 201 244 - 31 - - 31 60524.00 to 60554.00 115 151 - 255 - - IAA slr_v.dat 70 89 - 5 - - 29 60524.00 to 60553.00 209 245 - 23 - - ASI asi.*.eop 74 90 - 21 - - 26 60524.50 to 60549.50 221 264 - 65 - - ILRS * ilrsa.eop 40 45 - 9 - - 30 60524.50 to 60553.50 82 139 - 32 - - BULLETIN A NEOS mark3.out 17 17 9 - - - 31 60524.00 to 60554.00 34 37 23 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html