BULLETIN B 405 1 November 2021 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 0.023 0.017 0.0091 0.020 0.044 2021 9 2 59459 243.859 325.972 -118.2574 0.260 -0.013 0.023 0.017 0.0106 0.055 0.059 2021 9 3 59460 243.838 324.135 -117.2280 0.266 -0.077 0.023 0.017 0.0105 0.055 0.057 2021 9 4 59461 243.924 322.819 -116.2657 0.233 -0.089 0.023 0.017 0.0106 0.054 0.056 2021 9 5 59462 243.284 321.221 -115.4565 0.188 -0.083 0.023 0.017 0.0107 0.054 0.054 2021 9 6 59463 242.288 319.291 -114.9183 0.143 -0.077 0.024 0.017 0.0113 0.054 0.053 2021 9 7 59464 241.085 317.267 -114.5864 0.097 -0.071 0.024 0.017 0.0109 0.053 0.052 2021 9 8 59465 240.168 315.380 -114.4389 0.052 -0.065 0.024 0.017 0.0107 0.053 0.051 2021 9 9 59466 239.509 313.682 -114.4456 0.108 -0.082 0.024 0.017 0.0093 0.053 0.050 2021 9 10 59467 239.055 311.944 -114.5001 0.190 -0.103 0.024 0.017 0.0091 0.053 0.049 2021 9 11 59468 238.903 310.398 -114.5067 0.217 -0.108 0.024 0.017 0.0091 0.052 0.048 2021 9 12 59469 239.057 309.176 -114.3417 0.225 -0.108 0.023 0.017 0.0090 0.052 0.047 2021 9 13 59470 239.061 308.241 -113.9194 0.233 -0.107 0.023 0.017 0.0091 0.052 0.046 2021 9 14 59471 238.135 306.840 -113.2542 0.240 -0.106 0.023 0.017 0.0089 0.052 0.045 2021 9 15 59472 236.855 305.424 -112.4265 0.259 -0.133 0.023 0.018 0.0089 0.052 0.045 2021 9 16 59473 235.175 304.217 -111.5600 0.281 -0.168 0.023 0.017 0.0090 0.051 0.044 2021 9 17 59474 234.052 302.470 -110.7776 0.303 -0.202 0.023 0.018 0.0091 0.051 0.044 2021 9 18 59475 233.267 300.669 -110.1847 0.293 -0.178 0.023 0.018 0.0091 0.051 0.043 2021 9 19 59476 231.901 298.971 -109.7908 0.272 -0.133 0.023 0.018 0.0092 0.051 0.042 2021 9 20 59477 230.860 297.082 -109.5369 0.250 -0.087 0.024 0.018 0.0090 0.051 0.041 2021 9 21 59478 230.386 295.169 -109.3835 0.228 -0.042 0.024 0.018 0.0091 0.051 0.041 2021 9 22 59479 230.280 293.410 -109.2939 0.212 -0.051 0.024 0.019 0.0092 0.051 0.040 2021 9 23 59480 229.745 291.932 -109.2075 0.198 -0.074 0.024 0.018 0.0085 0.051 0.040 2021 9 24 59481 229.059 290.744 -109.0710 0.184 -0.098 0.024 0.019 0.0086 0.051 0.040 2021 9 25 59482 228.196 289.721 -108.8548 0.195 -0.100 0.024 0.019 0.0087 0.051 0.039 2021 9 26 59483 226.765 288.616 -108.5235 0.213 -0.096 0.025 0.019 0.0088 0.051 0.038 2021 9 27 59484 224.983 286.909 -108.0259 0.230 -0.091 0.025 0.019 0.0076 0.051 0.037 2021 9 28 59485 223.233 285.091 -107.3996 0.248 -0.087 0.025 0.019 0.0075 0.050 0.036 2021 9 29 59486 221.642 283.266 -106.7014 0.260 -0.096 0.025 0.019 0.0073 0.050 0.035 2021 9 30 59487 220.649 281.274 -105.9687 0.271 -0.109 0.025 0.020 0.0072 0.050 0.034 2021 10 1 59488 219.900 279.843 -105.2566 0.282 -0.121 0.025 0.019 0.0072 0.050 0.033 Preliminary extension 2021 10 2 59489 219.232 278.385 -104.6635 0.293 -0.134 0.025 0.020 0.0072 0.050 0.032 2021 10 3 59490 218.114 277.440 -104.2262 0.305 -0.147 0.025 0.020 0.0071 0.050 0.031 2021 10 4 59491 216.468 276.395 -104.0410 0.316 -0.159 0.025 0.020 0.0070 0.050 0.031 2021 10 5 59492 214.967 275.266 -104.1426 0.327 -0.172 0.025 0.020 0.0069 0.050 0.030 2021 10 6 59493 212.890 274.071 -104.5133 0.257 -0.165 0.024 0.020 0.0071 0.051 0.032 2021 10 7 59494 210.668 272.305 -105.0356 0.168 -0.154 0.024 0.020 0.0073 0.053 0.035 2021 10 8 59495 208.744 270.355 -105.5549 0.079 -0.142 0.024 0.020 0.0076 0.054 0.039 2021 10 9 59496 206.989 268.621 -105.9192 0.047 -0.131 0.024 0.020 0.0079 0.500 0.500 2021 10 10 59497 205.589 267.051 -106.0522 0.076 -0.125 0.024 0.020 0.0082 0.500 0.500 2021 10 11 59498 204.293 265.935 -105.9543 0.144 -0.124 0.025 0.020 0.0085 0.500 0.500 2021 10 12 59499 202.934 265.318 -105.6850 0.215 -0.127 0.025 0.020 0.0088 0.500 0.500 2021 10 13 59500 201.345 265.113 -105.3514 0.254 -0.130 0.025 0.020 0.0092 0.500 0.500 2021 10 14 59501 199.532 264.475 -105.0681 0.251 -0.131 0.025 0.020 0.0095 0.500 0.500 2021 10 15 59502 197.145 264.051 -104.8445 0.222 -0.128 0.026 0.021 0.0098 0.500 0.500 2021 10 16 59503 194.539 263.308 -104.7370 0.194 -0.122 0.026 0.021 0.0100 0.500 0.500 2021 10 17 59504 192.521 262.737 -104.7974 0.187 -0.112 0.026 0.021 0.0103 0.500 0.500 2021 10 18 59505 190.328 262.125 -104.9803 0.200 -0.103 0.027 0.021 0.0106 0.500 0.500 2021 10 19 59506 188.429 261.104 -105.2903 0.217 -0.097 0.027 0.021 0.0109 0.500 0.500 2021 10 20 59507 186.954 260.390 -105.6536 0.222 -0.096 0.028 0.022 0.0113 0.500 0.500 2021 10 21 59508 185.888 259.685 -105.9425 0.214 -0.100 0.028 0.022 0.0116 0.500 0.500 2021 10 22 59509 185.111 258.936 -106.1405 0.203 -0.108 0.028 0.022 0.0119 0.500 0.500 2021 10 23 59510 183.996 258.127 -106.1835 0.202 -0.117 0.029 0.023 0.0122 0.500 0.500 2021 10 24 59511 182.170 256.865 -105.9600 0.215 -0.123 0.029 0.023 0.0124 0.500 0.500 2021 10 25 59512 180.756 255.683 -105.5671 0.233 -0.126 0.030 0.023 0.0128 0.500 0.500 2021 10 26 59513 179.436 255.133 -105.0647 0.243 -0.125 0.031 0.024 0.0132 0.500 0.500 2021 10 27 59514 177.472 254.623 -104.5525 0.237 -0.124 0.032 0.024 0.0137 0.500 0.500 2021 10 28 59515 174.986 254.205 -104.1327 0.226 -0.127 0.033 0.025 0.0142 0.500 0.500 2021 10 29 59516 172.885 253.728 -103.7683 0.226 -0.136 0.034 0.026 0.0148 0.500 0.500 2021 10 30 59517 171.141 253.493 -103.5929 0.247 -0.149 0.035 0.027 0.0153 0.500 0.500 2021 10 31 59518 169.136 253.040 -103.7186 0.279 -0.164 0.037 0.028 0.0159 0.500 0.500 2021 11 1 59519 167.147 252.476 -104.2354 0.299 -0.174 0.039 0.029 0.0164 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 2021 9 2 59459 -118.581 -9.390 0.138 0.059 2021 9 3 59460 -118.364 -9.679 0.138 0.057 2021 9 4 59461 -118.147 -9.782 0.136 0.056 2021 9 5 59462 -117.995 -9.664 0.136 0.054 2021 9 6 59463 -117.966 -9.415 0.136 0.053 2021 9 7 59464 -118.054 -9.194 0.133 0.052 2021 9 8 59465 -118.217 -9.134 0.133 0.051 2021 9 9 59466 -118.199 -9.278 0.133 0.050 2021 9 10 59467 -118.196 -9.493 0.133 0.049 2021 9 11 59468 -118.376 -9.600 0.131 0.048 2021 9 12 59469 -118.582 -9.536 0.131 0.047 2021 9 13 59470 -118.703 -9.367 0.131 0.046 2021 9 14 59471 -118.709 -9.209 0.131 0.045 2021 9 15 59472 -118.563 -9.153 0.131 0.045 2021 9 16 59473 -118.302 -9.166 0.128 0.044 2021 9 17 59474 -117.983 -9.205 0.128 0.044 2021 9 18 59475 -117.773 -9.189 0.128 0.043 2021 9 19 59476 -117.690 -9.120 0.128 0.042 2021 9 20 59477 -117.703 -8.970 0.128 0.041 2021 9 21 59478 -117.748 -8.731 0.128 0.041 2021 9 22 59479 -117.791 -8.533 0.128 0.040 2021 9 23 59480 -117.893 -8.459 0.128 0.040 2021 9 24 59481 -118.064 -8.550 0.128 0.040 2021 9 25 59482 -118.132 -8.702 0.128 0.039 2021 9 26 59483 -118.029 -8.801 0.128 0.038 2021 9 27 59484 -117.816 -8.811 0.128 0.037 2021 9 28 59485 -117.636 -8.811 0.126 0.036 2021 9 29 59486 -117.530 -8.894 0.126 0.035 2021 9 30 59487 -117.318 -9.028 0.126 0.034 2021 10 1 59488 -116.884 -9.102 0.126 0.033 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 2021 9 2 59459 -1.0516 0.0070 15.04106736174 0.00000000122 2021 9 3 59460 -1.0009 0.0069 15.04106735291 0.00000000120 2021 9 4 59461 -0.8934 0.0069 15.04106733420 0.00000000120 2021 9 5 59462 -0.7065 0.0069 15.04106730166 0.00000000120 2021 9 6 59463 -0.4500 0.0069 15.04106725701 0.00000000120 2021 9 7 59464 -0.2230 0.0069 15.04106721749 0.00000000120 2021 9 8 59465 -0.0487 0.0069 15.04106718715 0.00000000120 2021 9 9 59466 0.0445 0.0068 15.04106717092 0.00000000118 2021 9 10 59467 0.0481 0.0069 15.04106717030 0.00000000120 2021 9 11 59468 -0.0661 0.0068 15.04106719018 0.00000000118 2021 9 12 59469 -0.2835 0.0068 15.04106722802 0.00000000118 2021 9 13 59470 -0.5446 0.0068 15.04106727348 0.00000000118 2021 9 14 59471 -0.7658 0.0069 15.04106731199 0.00000000120 2021 9 15 59472 -0.8470 0.0069 15.04106732612 0.00000000120 2021 9 16 59473 -0.8380 0.0068 15.04106732455 0.00000000118 2021 9 17 59474 -0.6952 0.0068 15.04106729970 0.00000000118 2021 9 18 59475 -0.4981 0.0068 15.04106726538 0.00000000118 2021 9 19 59476 -0.3079 0.0068 15.04106723227 0.00000000118 2021 9 20 59477 -0.1935 0.0069 15.04106721236 0.00000000120 2021 9 21 59478 -0.1309 0.0068 15.04106720146 0.00000000118 2021 9 22 59479 -0.0808 0.0068 15.04106719274 0.00000000118 2021 9 23 59480 -0.1148 0.0067 15.04106719866 0.00000000117 2021 9 24 59481 -0.1808 0.0068 15.04106721015 0.00000000118 2021 9 25 59482 -0.2793 0.0068 15.04106722729 0.00000000118 2021 9 26 59483 -0.4236 0.0068 15.04106725241 0.00000000118 2021 9 27 59484 -0.5541 0.0068 15.04106727513 0.00000000118 2021 9 28 59485 -0.6578 0.0068 15.04106729318 0.00000000118 2021 9 29 59486 -0.7266 0.0068 15.04106730516 0.00000000118 2021 9 30 59487 -0.7290 0.0068 15.04106730558 0.00000000118 2021 10 1 59488 -0.6552 0.0067 15.04106729273 0.00000000117 4 - INFORMATION ON TIME SCALES TAI - UTC = 37 s. during period [59459-59488] No leap second introduced during period [59459-59488] 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 CGS cgs2007a.eops 155 175 13 - 0 0 9 59460.24 to 59485.63 260 369 98 - 74 211 BKG bkg00020a.eops 57 70 4 - 15 43 9 59460.27 to 59485.21 89 158 13 - 46 64 GSFC gsf2020a.eoxy 50 55 3 11 14 40 9 59460.27 to 59485.21 113 86 12 24 41 53 IAA iaa2021a.eops 43 48 2 - 12 33 8 59460.27 to 59485.21 198 344 17 - 50 124 USNO usn2021b.eoxy 41 52 3 - 15 45 9 59460.27 to 59485.21 133 168 12 - 37 27 IVS * ivs20r1X.eops 13 16 0 - 5 14 8 59460.25 to 59485.21 80 47 8 - 9 9 VLBI Intensive GSI * gsiint2c.eopi - - 4 - - - 7 59461.33 to 59483.33 - - 15 - - - BKG * bkg2020.eopi - - 12 - - - 32 59459.79 to 59487.79 - - 38 - - - GSFC * gsf2020a.eopi - - 17 - - - 31 59459.79 to 59487.79 - - 178 - - - IAA * iaa2021a.eopi - - 72 - - - 31 59459.79 to 59487.79 - - 62 - - - USNO * usn2021b.eopi - - 13 - - - 31 59459.79 to 59487.79 - - 87 - - - GPS CODE COD*ERP_R 5 5 - 0 - - 29 59459.50 to 59487.50 26 25 - 14 - - JPL jpl*.erp 11 12 - 7 - - 29 59459.50 to 59487.50 40 34 - 16 - - GFZ gfz*.erp 7 8 - 2 - - 29 59459.50 to 59487.50 31 34 - 9 - - ESOC esa*.erp 7 8 - 4 - - 29 59459.50 to 59487.50 32 36 - 9 - - SIO sio*.erp siu*.erp 30 28 - 5 - - 29 59459.50 to 59487.50 43 34 - 14 - - EMR emr*.erp 3 3 - 1 - - 29 59459.50 to 59487.50 48 38 - 15 - - IAA gnss.res 0 0 - 0 - - 29 59459.50 to 59487.50 53 69 - 24 - - GRGS grg*.erp 228 228 - 0 - - 29 59459.50 to 59487.50 24 20 - 12 - - ASI asi*.erp 9 9 - 0 - - 29 59459.50 to 59487.50 52 45 - 64 - - MIT mit*.erp 12 12 - 2 - - 29 59459.50 to 59487.50 37 36 - 13 - - IGR * igs96p02.erp 9 8 - 2 - - 29 59459.50 to 59487.50 28 27 - 10 - - IGS * igs00p03.erp 3 3 - 0 - - 29 59459.50 to 59487.50 30 32 - 13 - - SLR MCC tg*.02 165 183 - 34 - - 30 59459.00 to 59488.00 102 107 - 220 - - IAA slr_v.dat 55 64 - 4 - - 29 59459.00 to 59488.00 209 202 - 26 - - ASI slr_oca*.eop 64 73 - 15 - - 29 59459.50 to 59487.50 193 224 - 48 - - ILRS * ilrsa.eop 36 41 - 6 - - 29 59459.50 to 59487.50 150 178 - 32 - - BULLETIN A NEOS mark3.out 20 21 5 - - - 30 59459.00 to 59488.00 55 40 31 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html