BULLETIN B 433 1 March 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 0.043 0.0163 0.056 0.046 2024 1 2 60311 134.917 202.555 8.4757 0.353 -0.139 0.054 0.042 0.0205 0.066 0.050 2024 1 3 60312 133.109 203.087 8.1157 0.396 -0.091 0.053 0.041 0.0178 0.066 0.051 2024 1 4 60313 131.582 204.005 7.7008 0.336 -0.050 0.052 0.041 0.0158 0.065 0.050 2024 1 5 60314 130.046 205.151 7.2587 0.253 -0.019 0.051 0.041 0.0140 0.064 0.049 2024 1 6 60315 127.924 206.114 6.8909 0.213 -0.025 0.052 0.042 0.0121 0.063 0.049 2024 1 7 60316 125.599 206.334 6.6966 0.209 -0.060 0.053 0.044 0.0106 0.062 0.049 2024 1 8 60317 123.296 206.642 6.7475 0.222 -0.106 0.053 0.045 0.0100 0.060 0.049 2024 1 9 60318 121.192 206.575 7.0360 0.243 -0.151 0.056 0.044 0.0100 0.059 0.048 2024 1 10 60319 119.280 206.262 7.4355 0.248 -0.168 0.054 0.043 0.0106 0.071 0.059 2024 1 11 60320 117.602 206.432 7.8271 0.246 -0.170 0.054 0.044 0.0116 0.092 0.076 2024 1 12 60321 115.879 206.702 8.1417 0.243 -0.164 0.056 0.044 0.0120 0.111 0.092 2024 1 13 60322 114.245 207.034 8.2712 0.236 -0.149 0.059 0.044 0.0122 0.106 0.087 2024 1 14 60323 113.378 207.784 8.1341 0.227 -0.129 0.059 0.045 0.0111 0.086 0.072 2024 1 15 60324 112.214 209.001 7.7530 0.220 -0.107 0.057 0.045 0.0132 0.065 0.054 2024 1 16 60325 110.998 209.753 7.2002 0.217 -0.086 0.058 0.045 0.0154 0.049 0.041 2024 1 17 60326 109.707 210.704 6.5513 0.227 -0.073 0.057 0.044 0.0194 0.044 0.037 2024 1 18 60327 107.654 211.907 5.9931 0.243 -0.064 0.058 0.044 0.0157 0.039 0.033 2024 1 19 60328 105.447 212.778 5.6646 0.258 -0.057 0.058 0.043 0.0147 0.034 0.029 2024 1 20 60329 102.668 213.985 5.5761 0.258 -0.046 0.057 0.045 0.0151 0.034 0.029 2024 1 21 60330 99.188 214.508 5.6875 0.251 -0.034 0.057 0.046 0.0154 0.035 0.029 2024 1 22 60331 95.614 214.880 5.9347 0.247 -0.026 0.054 0.045 0.0164 0.036 0.030 2024 1 23 60332 92.142 215.252 6.2476 0.251 -0.026 0.052 0.045 0.0185 0.037 0.031 2024 1 24 60333 88.475 215.315 6.5434 0.290 -0.043 0.051 0.045 0.0301 0.036 0.031 2024 1 25 60334 85.015 215.422 6.7558 0.340 -0.070 0.052 0.043 0.0331 0.036 0.031 2024 1 26 60335 82.036 215.766 6.8335 0.383 -0.099 0.052 0.043 0.0292 0.036 0.031 2024 1 27 60336 79.128 216.515 6.7647 0.387 -0.130 0.053 0.044 0.0274 0.038 0.033 2024 1 28 60337 76.203 217.108 6.5455 0.365 -0.157 0.055 0.043 0.0154 0.042 0.037 2024 1 29 60338 73.683 217.508 6.0957 0.335 -0.179 0.056 0.044 0.0146 0.048 0.041 2024 1 30 60339 70.956 217.931 5.5078 0.305 -0.190 0.054 0.044 0.0147 0.051 0.044 2024 1 31 60340 68.290 218.391 4.8845 0.296 -0.175 0.053 0.046 0.0144 0.056 0.051 2024 2 1 60341 65.607 219.297 4.2881 0.298 -0.150 0.049 0.043 0.0145 0.062 0.061 Preliminary extension 2024 2 2 60342 62.876 220.790 3.7479 0.305 -0.124 0.048 0.041 0.0145 0.068 0.070 2024 2 3 60343 60.202 222.640 3.3496 0.319 -0.120 0.047 0.040 0.0145 0.065 0.067 2024 2 4 60344 57.631 224.279 3.1475 0.338 -0.129 0.047 0.039 0.0149 0.057 0.057 2024 2 5 60345 55.860 226.021 3.1590 0.359 -0.143 0.047 0.038 0.0166 0.047 0.046 2024 2 6 60346 53.704 227.860 3.3050 0.378 -0.158 0.047 0.038 0.0197 0.040 0.039 2024 2 7 60347 52.364 229.271 3.4691 0.396 -0.166 0.047 0.038 0.0244 0.040 0.038 2024 2 8 60348 51.269 231.172 3.5784 0.408 -0.171 0.048 0.039 0.0256 0.042 0.039 2024 2 9 60349 49.695 233.064 3.5219 0.411 -0.175 0.050 0.040 0.0203 0.043 0.039 2024 2 10 60350 48.209 235.284 3.1545 0.444 -0.222 0.052 0.041 0.0161 0.047 0.042 2024 2 11 60351 47.055 237.198 2.4098 0.466 -0.271 0.054 0.043 0.0140 0.053 0.046 2024 2 12 60352 46.122 238.814 1.3902 0.432 -0.278 0.056 0.045 0.0126 0.058 0.049 2024 2 13 60353 44.600 240.649 0.2641 0.310 -0.215 0.057 0.046 0.0124 0.061 0.051 2024 2 14 60354 42.452 242.164 -0.8261 0.090 -0.169 0.057 0.047 0.0135 0.500 0.500 2024 2 15 60355 40.494 243.158 -1.7622 0.093 -0.156 0.057 0.047 0.0151 0.500 0.500 2024 2 16 60356 38.712 244.003 -2.4616 0.102 -0.144 0.058 0.047 0.0165 0.500 0.500 2024 2 17 60357 36.967 245.211 -2.8499 0.113 -0.133 0.059 0.047 0.0176 0.500 0.500 2024 2 18 60358 35.024 246.717 -2.9424 0.124 -0.125 0.059 0.047 0.0166 0.500 0.500 2024 2 19 60359 32.826 248.255 -2.8248 0.133 -0.122 0.058 0.048 0.0153 0.500 0.500 2024 2 20 60360 30.941 249.758 -2.5614 0.142 -0.126 0.058 0.048 0.0147 0.500 0.500 2024 2 21 60361 28.786 251.597 -2.2616 0.150 -0.132 0.058 0.049 0.0145 0.500 0.500 2024 2 22 60362 26.380 253.197 -1.9883 0.157 -0.138 0.059 0.049 0.0147 0.500 0.500 2024 2 23 60363 24.105 255.375 -1.8081 0.160 -0.141 0.060 0.051 0.0137 0.500 0.500 2024 2 24 60364 21.474 257.705 -1.7634 0.159 -0.140 0.063 0.053 0.0129 0.500 0.500 2024 2 25 60365 18.809 259.526 -1.8869 0.152 -0.137 0.067 0.056 0.0128 0.500 0.500 2024 2 26 60366 16.282 261.618 -2.1566 0.142 -0.135 0.073 0.060 0.0139 0.500 0.500 2024 2 27 60367 13.534 263.668 -2.4988 0.132 -0.135 0.084 0.065 0.0156 0.500 0.500 2024 2 28 60368 10.718 265.699 -2.8569 0.123 -0.136 0.100 0.073 0.0177 0.500 0.500 2024 2 29 60369 7.874 267.836 -3.1757 0.117 -0.136 0.123 0.084 0.0194 0.500 0.500 2024 3 1 60370 5.449 270.073 -3.3834 0.113 -0.133 0.164 0.106 0.0209 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 1 2 60311 -110.087 -5.652 0.166 0.050 2024 1 3 60312 -109.914 -5.458 0.166 0.051 2024 1 4 60313 -110.198 -5.245 0.164 0.050 2024 1 5 60314 -110.796 -5.152 0.161 0.049 2024 1 6 60315 -111.426 -5.273 0.159 0.049 2024 1 7 60316 -111.850 -5.519 0.155 0.049 2024 1 8 60317 -111.991 -5.753 0.151 0.049 2024 1 9 60318 -111.988 -5.961 0.147 0.048 2024 1 10 60319 -112.002 -6.175 0.178 0.059 2024 1 11 60320 -111.898 -6.355 0.232 0.076 2024 1 12 60321 -111.556 -6.342 0.279 0.092 2024 1 13 60322 -111.146 -6.094 0.266 0.087 2024 1 14 60323 -110.961 -5.809 0.217 0.072 2024 1 15 60324 -111.087 -5.702 0.163 0.054 2024 1 16 60325 -111.363 -5.761 0.123 0.041 2024 1 17 60326 -111.598 -5.826 0.110 0.037 2024 1 18 60327 -111.772 -5.800 0.098 0.033 2024 1 19 60328 -111.917 -5.725 0.086 0.029 2024 1 20 60329 -112.052 -5.663 0.085 0.029 2024 1 21 60330 -112.070 -5.647 0.087 0.029 2024 1 22 60331 -111.865 -5.711 0.090 0.030 2024 1 23 60332 -111.472 -5.891 0.092 0.031 2024 1 24 60333 -111.012 -6.155 0.092 0.031 2024 1 25 60334 -110.704 -6.354 0.090 0.031 2024 1 26 60335 -110.548 -6.353 0.089 0.031 2024 1 27 60336 -110.477 -6.174 0.095 0.033 2024 1 28 60337 -110.366 -5.976 0.106 0.037 2024 1 29 60338 -110.224 -5.878 0.119 0.041 2024 1 30 60339 -110.114 -5.849 0.129 0.044 2024 1 31 60340 -110.040 -5.788 0.140 0.051 2024 2 1 60341 -110.106 -5.750 0.156 0.061 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 1 2 60311 0.3215 0.0238 15.04106712270 0.00000000414 2024 1 3 60312 0.3936 0.0244 15.04106711015 0.00000000425 2024 1 4 60313 0.4330 0.0252 15.04106710329 0.00000000439 2024 1 5 60314 0.4214 0.0267 15.04106710531 0.00000000465 2024 1 6 60315 0.3088 0.0409 15.04106712491 0.00000000712 2024 1 7 60316 0.0816 0.0326 15.04106716446 0.00000000568 2024 1 8 60317 -0.1756 0.0307 15.04106720924 0.00000000534 2024 1 9 60318 -0.3768 0.0367 15.04106724427 0.00000000639 2024 1 10 60319 -0.4170 0.0325 15.04106725126 0.00000000566 2024 1 11 60320 -0.3650 0.0301 15.04106724221 0.00000000524 2024 1 12 60321 -0.2363 0.0296 15.04106721981 0.00000000515 2024 1 13 60322 -0.0046 0.0303 15.04106717947 0.00000000527 2024 1 14 60323 0.2690 0.0316 15.04106713184 0.00000000550 2024 1 15 60324 0.4829 0.0360 15.04106709460 0.00000000627 2024 1 16 60325 0.6233 0.0328 15.04106707016 0.00000000571 2024 1 17 60326 0.6333 0.0323 15.04106706842 0.00000000562 2024 1 18 60327 0.4604 0.0284 15.04106709852 0.00000000494 2024 1 19 60328 0.2032 0.0266 15.04106714330 0.00000000463 2024 1 20 60329 -0.0215 0.0252 15.04106718241 0.00000000439 2024 1 21 60330 -0.1924 0.0252 15.04106721216 0.00000000439 2024 1 22 60331 -0.2903 0.0248 15.04106722921 0.00000000432 2024 1 23 60332 -0.3143 0.0242 15.04106723339 0.00000000421 2024 1 24 60333 -0.2677 0.0241 15.04106722527 0.00000000420 2024 1 25 60334 -0.1530 0.0240 15.04106720531 0.00000000418 2024 1 26 60335 -0.0053 0.0256 15.04106717959 0.00000000446 2024 1 27 60336 0.1600 0.0248 15.04106715082 0.00000000432 2024 1 28 60337 0.3544 0.0243 15.04106711697 0.00000000423 2024 1 29 60338 0.5305 0.0255 15.04106708632 0.00000000444 2024 1 30 60339 0.6240 0.0256 15.04106707004 0.00000000446 2024 1 31 60340 0.6207 0.0253 15.04106707061 0.00000000440 2024 2 1 60341 0.5728 0.0245 15.04106707895 0.00000000427 4 - INFORMATION ON TIME SCALES TAI - UTC = 37 s. during period [60311-60341] No leap second introduced during period [60311-60341] 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 47 50 3 - 40 37 9 60312.21 to 60339.21 96 67 24 - 33 23 GSFC gsf2023a.eoxy 48 45 2 7 35 34 13 60312.21 to 60339.21 166 159 25 12 43 33 IAA iaa2021a.eops 96 100 6 - 75 73 8 60314.27 to 60339.21 400 409 28 - 265 259 USNO usn2023c.eoxy 40 35 2 - 42 38 9 60312.21 to 60339.21 79 45 23 - 22 17 IVS * ivs2023a.eoxy 40 43 2 - 33 31 9 60312.21 to 60339.20 44 57 26 - 5 2 ASI asi2023a.eoxy 81 86 14 - 147 141 10 60312.21 to 60339.21 101 131 27 - 124 261 VLBI Intensive GSI * gsiint2d.eopi - - 7 - - - 5 60316.33 to 60337.33 - - 30 - - - BKG * bkg2023a.eopi - - 6 - - - 65 60311.75 to 60340.75 - - 44 - - - GSFC * gsf2023a.eopi - - 11 - - - 66 60311.75 to 60341.00 - - 58 - - - IAA * iaa2021a.eopi - - 23 - - - 77 60311.75 to 60340.75 - - 83 - - - USNO * usn2023c.eopi - - 9 - - - 43 60311.75 to 60341.00 - - 66 - - - GPS CODE COD0OPSFIN 3 3 - 0 - - 30 60311.50 to 60340.50 36 35 - 20 - - JPL JPL0OPSFIN 10 11 - 5 - - 30 60311.50 to 60340.50 53 51 - 27 - - GFZ GFZ0OPSFIN 4 4 - 1 - - 30 60311.50 to 60340.50 32 40 - 22 - - ESA ESA0OPSFIN 6 6 - 2 - - 30 60311.50 to 60340.50 39 33 - 21 - - SIO SIO0OPSFIN 24 23 - 10 - - 30 60311.50 to 60340.50 49 50 - 24 - - EMR EMR0OPSRAP 3 3 - 0 - - 30 60311.50 to 60340.50 76 59 - 23 - - IAA gnss.res 0 0 - 0 - - 30 60311.50 to 60340.50 65 51 - 29 - - GRGS GRG0OPSFIN 261 261 - 0 - - 30 60311.50 to 60340.50 36 34 - 19 - - ASI asi*.erp 9 9 - 0 - - 11 60323.50 to 60340.50 25 28 - 55 - - MIT MIT0OPSFIN 11 10 - 1 - - 30 60311.50 to 60340.50 47 51 - 22 - - IGS * IGS0OPSRAP 13 12 - 3 - - 30 60311.50 to 60340.50 35 31 - 19 - - IGS * IGS0OPSFIN 8 8 - 2 - - 30 60311.50 to 60340.50 29 30 - 18 - - SLR MCC tg*.02 217 269 - 45 - - 31 60311.00 to 60341.00 182 359 - 77 - - IAA slr_v.dat 75 87 - 5 - - 30 60311.00 to 60341.00 206 280 - 20 - - ASI asi.*.eop 2894 3088 - 16 - - 30 60311.50 to 60340.50 241 221 - 51 - - ILRS * ilrsa.eop 55 59 - 11 - - 30 60311.50 to 60340.50 131 246 - 36 - - BULLETIN A NEOS mark3.out 28 30 8 - - - 31 60311.00 to 60341.00 23 37 29 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html