BULLETIN B 430 4 December 2023 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 0.062 0.048 0.0281 0.048 0.042 2023 10 2 60219 300.711 331.993 11.3503 0.195 -0.086 0.064 0.051 0.0198 0.062 0.053 2023 10 3 60220 299.884 329.534 11.3093 0.197 -0.073 0.062 0.049 0.0192 0.064 0.055 2023 10 4 60221 298.717 326.782 11.5775 0.225 -0.077 0.061 0.048 0.0193 0.067 0.057 2023 10 5 60222 298.232 324.037 12.0742 0.263 -0.085 0.061 0.048 0.0205 0.072 0.060 2023 10 6 60223 297.920 321.485 12.7240 0.302 -0.092 0.061 0.048 0.0233 0.076 0.063 2023 10 7 60224 297.532 319.119 13.3996 0.324 -0.075 0.059 0.048 0.0267 0.074 0.061 2023 10 8 60225 296.876 316.797 13.9877 0.335 -0.048 0.058 0.046 0.0274 0.068 0.056 2023 10 9 60226 295.928 314.663 14.4054 0.337 -0.022 0.056 0.044 0.0239 0.060 0.049 2023 10 10 60227 294.921 312.271 14.6356 0.333 -0.005 0.057 0.045 0.0203 0.055 0.045 2023 10 11 60228 293.786 309.909 14.6710 0.319 -0.023 0.055 0.045 0.0254 0.051 0.042 2023 10 12 60229 292.342 307.369 14.5299 0.300 -0.054 0.057 0.048 0.0282 0.046 0.039 2023 10 13 60230 291.417 304.741 14.2940 0.280 -0.087 0.058 0.050 0.0323 0.042 0.035 2023 10 14 60231 290.959 302.931 13.9979 0.265 -0.097 0.057 0.051 0.0407 0.041 0.035 2023 10 15 60232 290.206 301.059 13.6690 0.253 -0.090 0.057 0.052 0.0538 0.040 0.035 2023 10 16 60233 289.556 298.935 13.4187 0.244 -0.075 0.060 0.053 0.0687 0.039 0.035 2023 10 17 60234 288.888 296.768 13.3241 0.234 -0.053 0.061 0.054 0.0628 0.039 0.035 2023 10 18 60235 288.061 294.608 13.3850 0.225 -0.028 0.060 0.053 0.0456 0.038 0.034 2023 10 19 60236 286.823 292.913 13.6196 0.210 0.004 0.060 0.051 0.0348 0.043 0.039 2023 10 20 60237 285.166 291.121 13.9436 0.200 0.030 0.061 0.050 0.0279 0.049 0.046 2023 10 21 60238 283.894 289.336 14.2475 0.207 0.029 0.061 0.046 0.0235 0.049 0.046 2023 10 22 60239 282.734 287.395 14.4590 0.227 0.006 0.064 0.046 0.0206 0.045 0.041 2023 10 23 60240 281.945 284.996 14.4889 0.251 -0.027 0.066 0.045 0.0175 0.041 0.037 2023 10 24 60241 281.319 282.356 14.2581 0.273 -0.063 0.065 0.047 0.0201 0.038 0.033 2023 10 25 60242 280.625 279.902 13.7506 0.275 -0.086 0.064 0.050 0.0222 0.038 0.033 2023 10 26 60243 280.203 277.777 13.0086 0.269 -0.102 0.072 0.053 0.0157 0.038 0.034 2023 10 27 60244 280.001 275.702 12.1805 0.258 -0.111 0.072 0.052 0.0162 0.039 0.034 2023 10 28 60245 280.015 274.097 11.4735 0.245 -0.110 0.068 0.050 0.0369 0.039 0.034 2023 10 29 60246 279.560 272.859 11.0296 0.233 -0.102 0.071 0.048 0.0468 0.039 0.035 2023 10 30 60247 278.140 271.640 10.8288 0.224 -0.087 0.073 0.048 0.0097 0.039 0.036 2023 10 31 60248 276.348 270.303 10.9909 0.222 -0.069 0.067 0.046 0.0098 0.040 0.036 2023 11 1 60249 274.569 268.315 11.3342 0.238 -0.039 0.062 0.046 0.0100 0.040 0.036 Preliminary extension 2023 11 2 60250 273.198 266.114 11.7789 0.262 -0.010 0.060 0.046 0.0102 0.042 0.037 2023 11 3 60251 271.821 264.434 12.2712 0.288 0.008 0.059 0.044 0.0105 0.043 0.038 2023 11 4 60252 270.926 262.560 12.7257 0.308 -0.016 0.056 0.045 0.0108 0.044 0.039 2023 11 5 60253 270.149 261.317 13.0349 0.322 -0.066 0.052 0.041 0.0111 0.046 0.043 2023 11 6 60254 269.116 259.779 13.1352 0.329 -0.123 0.049 0.039 0.0114 0.048 0.047 2023 11 7 60255 268.303 258.537 13.0290 0.329 -0.175 0.047 0.038 0.0117 0.050 0.050 2023 11 8 60256 266.739 257.202 12.7941 0.308 -0.200 0.046 0.037 0.0120 0.055 0.060 2023 11 9 60257 265.194 255.590 12.4363 0.282 -0.207 0.045 0.037 0.0123 0.062 0.077 2023 11 10 60258 263.500 254.447 11.9406 0.260 -0.197 0.044 0.037 0.0127 0.069 0.091 2023 11 11 60259 261.613 252.838 11.3743 0.272 -0.151 0.043 0.037 0.0137 0.075 0.097 2023 11 12 60260 259.933 251.300 10.8910 0.303 -0.085 0.043 0.037 0.0154 0.084 0.105 2023 11 13 60261 258.245 249.737 10.5473 0.337 -0.021 0.043 0.038 0.0171 0.093 0.112 2023 11 14 60262 256.508 248.136 10.3717 0.366 0.030 0.044 0.037 0.0184 0.099 0.117 2023 11 15 60263 254.569 246.763 10.3990 0.442 0.001 0.044 0.037 0.0182 0.108 0.129 2023 11 16 60264 252.415 245.065 10.5866 0.467 -0.042 0.045 0.037 0.0170 0.118 0.143 2023 11 17 60265 250.389 242.988 10.8419 0.373 -0.058 0.046 0.037 0.0168 0.124 0.152 2023 11 18 60266 248.397 240.382 11.1075 0.252 -0.079 0.047 0.038 0.0182 0.500 0.500 2023 11 19 60267 246.694 238.130 11.2885 0.256 -0.086 0.050 0.040 0.0221 0.500 0.500 2023 11 20 60268 245.239 236.138 11.2844 0.256 -0.091 0.054 0.042 0.0285 0.500 0.500 2023 11 21 60269 244.485 234.476 11.0938 0.250 -0.093 0.057 0.044 0.0295 0.500 0.500 2023 11 22 60270 243.565 233.541 10.7388 0.239 -0.094 0.059 0.046 0.0266 0.500 0.500 2023 11 23 60271 241.885 232.169 10.3100 0.227 -0.095 0.060 0.048 0.0253 0.500 0.500 2023 11 24 60272 240.979 231.299 9.8738 0.217 -0.094 0.061 0.051 0.0252 0.500 0.500 2023 11 25 60273 239.687 230.830 9.4960 0.211 -0.092 0.061 0.052 0.0230 0.500 0.500 2023 11 26 60274 238.288 230.097 9.3392 0.212 -0.086 0.062 0.053 0.0208 0.500 0.500 2023 11 27 60275 236.323 229.492 9.4388 0.217 -0.080 0.063 0.055 0.0204 0.500 0.500 2023 11 28 60276 233.826 228.475 9.7881 0.224 -0.075 0.064 0.057 0.0216 0.500 0.500 2023 11 29 60277 231.472 227.319 10.3218 0.232 -0.075 0.066 0.061 0.0253 0.500 0.500 2023 11 30 60278 228.986 225.895 10.9377 0.240 -0.079 0.068 0.067 0.0321 0.500 0.500 2023 12 1 60279 226.782 224.795 11.4927 0.247 -0.086 0.073 0.076 0.0408 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 2023 10 2 60219 -118.635 -8.711 0.156 0.053 2023 10 3 60220 -118.934 -8.547 0.160 0.055 2023 10 4 60221 -119.190 -8.569 0.168 0.057 2023 10 5 60222 -119.132 -8.761 0.181 0.060 2023 10 6 60223 -118.796 -8.884 0.192 0.063 2023 10 7 60224 -118.390 -8.787 0.187 0.061 2023 10 8 60225 -117.978 -8.588 0.170 0.056 2023 10 9 60226 -117.574 -8.450 0.151 0.049 2023 10 10 60227 -117.258 -8.374 0.137 0.045 2023 10 11 60228 -117.114 -8.254 0.128 0.042 2023 10 12 60229 -117.105 -8.014 0.116 0.039 2023 10 13 60230 -117.141 -7.774 0.105 0.035 2023 10 14 60231 -117.183 -7.692 0.102 0.035 2023 10 15 60232 -117.269 -7.821 0.100 0.035 2023 10 16 60233 -117.374 -8.045 0.099 0.035 2023 10 17 60234 -117.400 -8.202 0.097 0.035 2023 10 18 60235 -117.311 -8.232 0.096 0.034 2023 10 19 60236 -117.185 -8.186 0.108 0.039 2023 10 20 60237 -117.049 -8.158 0.123 0.046 2023 10 21 60238 -116.787 -8.196 0.122 0.046 2023 10 22 60239 -116.313 -8.253 0.114 0.041 2023 10 23 60240 -115.709 -8.227 0.104 0.037 2023 10 24 60241 -115.235 -8.043 0.096 0.033 2023 10 25 60242 -115.163 -7.716 0.096 0.033 2023 10 26 60243 -115.441 -7.417 0.097 0.034 2023 10 27 60244 -115.756 -7.323 0.098 0.034 2023 10 28 60245 -115.828 -7.433 0.098 0.034 2023 10 29 60246 -115.697 -7.571 0.099 0.035 2023 10 30 60247 -115.650 -7.597 0.099 0.036 2023 10 31 60248 -115.831 -7.561 0.100 0.036 2023 11 1 60249 -116.023 -7.580 0.102 0.036 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 2023 10 2 60219 0.2042 0.0303 15.04106714312 0.00000000527 2023 10 3 60220 -0.1220 0.0290 15.04106719991 0.00000000505 2023 10 4 60221 -0.3981 0.0274 15.04106724797 0.00000000477 2023 10 5 60222 -0.5864 0.0266 15.04106728075 0.00000000463 2023 10 6 60223 -0.6841 0.0259 15.04106729776 0.00000000451 2023 10 7 60224 -0.6496 0.0252 15.04106729176 0.00000000439 2023 10 8 60225 -0.5162 0.0256 15.04106726853 0.00000000446 2023 10 9 60226 -0.3253 0.0259 15.04106723530 0.00000000451 2023 10 10 60227 -0.1305 0.0251 15.04106720139 0.00000000437 2023 10 11 60228 0.0587 0.0260 15.04106716845 0.00000000453 2023 10 12 60229 0.2039 0.0280 15.04106714317 0.00000000487 2023 10 13 60230 0.2738 0.0279 15.04106713101 0.00000000486 2023 10 14 60231 0.3174 0.0267 15.04106712342 0.00000000465 2023 10 15 60232 0.3068 0.0261 15.04106712526 0.00000000454 2023 10 16 60233 0.1854 0.0259 15.04106714639 0.00000000451 2023 10 17 60234 0.0173 0.0253 15.04106717566 0.00000000440 2023 10 18 60235 -0.1505 0.0251 15.04106720487 0.00000000437 2023 10 19 60236 -0.2996 0.0247 15.04106723083 0.00000000430 2023 10 20 60237 -0.3369 0.0248 15.04106723732 0.00000000432 2023 10 21 60238 -0.2716 0.0258 15.04106722595 0.00000000449 2023 10 22 60239 -0.1322 0.0256 15.04106720168 0.00000000446 2023 10 23 60240 0.0950 0.0249 15.04106716213 0.00000000433 2023 10 24 60241 0.3765 0.0245 15.04106711313 0.00000000427 2023 10 25 60242 0.6337 0.0256 15.04106706835 0.00000000446 2023 10 26 60243 0.8067 0.0252 15.04106703823 0.00000000439 2023 10 27 60244 0.8133 0.0260 15.04106703709 0.00000000453 2023 10 28 60245 0.6096 0.0260 15.04106707255 0.00000000453 2023 10 29 60246 0.2869 0.0260 15.04106712872 0.00000000453 2023 10 30 60247 -0.0313 0.0254 15.04106718412 0.00000000442 2023 10 31 60248 -0.2764 0.0245 15.04106722679 0.00000000427 2023 11 1 60249 -0.4083 0.0240 15.04106724975 0.00000000418 4 - INFORMATION ON TIME SCALES TAI - UTC = 37 s. during period [60219-60249] No leap second introduced during period [60219-60249] 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 49 52 3 - 35 35 14 60220.21 to 60248.21 86 140 19 - 105 97 GSFC gsf2023a.eoxy 48 49 3 7 35 35 15 60220.21 to 60248.21 92 72 20 11 73 93 USNO usn2023b.eoxy 34 38 2 - 35 36 9 60220.21 to 60248.21 47 331 20 - 31 18 IVS * ivs2023a.eoxy 31 42 2 - 29 29 9 60220.21 to 60248.22 93 90 22 - 2 2 ASI asi2023a.eoxy 68 77 10 - 147 135 12 60220.21 to 60248.21 165 171 26 - 176 158 VLBI Intensive GSI * gsiint2d.eopi - - 8 - - - 8 60224.33 to 60246.33 - - 27 - - - BKG * bkg2023.eopi - - 7 - - - 53 60219.29 to 60248.84 - - 34 - - - GSFC * gsf2023a.eopi - - 12 - - - 52 60219.29 to 60248.84 - - 32 - - - IAA * iaa2021a.eopi - - 32 - - - 57 60219.29 to 60248.75 - - 102 - - - USNO * usn2023b.eopi - - 10 - - - 47 60219.75 to 60248.75 - - 42 - - - GPS CODE COD0OPSFIN 3 3 - 0 - - 30 60219.50 to 60248.50 36 33 - 14 - - JPL JPL0OPSFIN 9 11 - 7 - - 30 60219.50 to 60248.50 49 36 - 22 - - GFZ GFZ0OPSFIN 4 4 - 1 - - 30 60219.50 to 60248.50 41 34 - 12 - - ESA ESA0OPSFIN 5 6 - 3 - - 30 60219.50 to 60248.50 40 32 - 11 - - SIO SIO0OPSFIN 23 23 - 11 - - 30 60219.50 to 60248.50 58 38 - 29 - - EMR EMR0OPSRAP 3 3 - 1 - - 30 60219.50 to 60248.50 59 54 - 14 - - IAA gnss.res 0 0 - 0 - - 30 60219.50 to 60248.50 61 54 - 21 - - GRGS GRG0OPSFIN 262 262 - 0 - - 30 60219.50 to 60248.50 38 25 - 13 - - ASI asi*.erp 9 9 - 0 - - 16 60219.50 to 60248.50 23 24 - 66 - - MIT MIT0OPSFIN 11 10 - 1 - - 30 60219.50 to 60248.50 59 46 - 15 - - IGR * IGS0OPSRAP 14 14 - 3 - - 30 60219.50 to 60248.50 38 38 - 12 - - IGS * IGS0OPSFIN 10 9 - 2 - - 30 60219.50 to 60248.50 31 27 - 14 - - SLR MCC tg*.02 206 230 - 32 - - 31 60219.00 to 60249.00 128 165 - 193 - - IAA slr_v.dat 76 86 - 5 - - 29 60219.00 to 60249.00 183 256 - 27 - - ASI asi.*.eop 81 89 - 19 - - 30 60219.50 to 60248.50 167 260 - 62 - - ILRS * ilrsa.eop 52 56 - 10 - - 30 60219.50 to 60248.50 164 116 - 30 - - BULLETIN A NEOS mark3.out 12 18 5 - - - 31 60219.00 to 60249.00 31 30 30 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html