BULLETIN B 407 3 January 2022 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 0.026 0.018 0.0089 0.020 0.047 2021 11 2 59520 165.421 252.037 -104.7142 0.239 -0.069 0.025 0.018 0.0096 0.046 0.050 2021 11 3 59521 164.345 251.154 -105.5305 0.249 -0.051 0.025 0.018 0.0099 0.046 0.050 2021 11 4 59522 163.380 250.407 -106.3597 0.200 -0.036 0.025 0.018 0.0096 0.046 0.050 2021 11 5 59523 161.527 249.780 -107.0350 0.135 -0.022 0.026 0.018 0.0094 0.047 0.050 2021 11 6 59524 158.959 249.274 -107.4216 0.153 -0.034 0.026 0.018 0.0096 0.047 0.051 2021 11 7 59525 156.428 248.766 -107.5061 0.204 -0.058 0.026 0.019 0.0098 0.048 0.052 2021 11 8 59526 154.365 248.057 -107.3849 0.254 -0.081 0.026 0.018 0.0100 0.048 0.053 2021 11 9 59527 152.501 247.567 -107.1716 0.304 -0.104 0.026 0.019 0.0102 0.048 0.054 2021 11 10 59528 150.781 247.125 -106.9620 0.289 -0.093 0.026 0.019 0.0103 0.049 0.054 2021 11 11 59529 149.470 246.785 -106.8772 0.255 -0.072 0.026 0.019 0.0100 0.049 0.054 2021 11 12 59530 148.470 246.564 -106.9721 0.222 -0.052 0.026 0.019 0.0103 0.050 0.054 2021 11 13 59531 147.692 246.455 -107.2523 0.220 -0.061 0.026 0.019 0.0104 0.050 0.053 2021 11 14 59532 147.041 246.459 -107.6527 0.230 -0.082 0.027 0.019 0.0105 0.050 0.052 2021 11 15 59533 145.836 246.338 -108.0024 0.239 -0.102 0.027 0.019 0.0096 0.050 0.051 2021 11 16 59534 143.555 246.023 -108.2774 0.249 -0.122 0.027 0.019 0.0096 0.051 0.050 2021 11 17 59535 141.392 245.346 -108.4806 0.247 -0.082 0.027 0.019 0.0097 0.051 0.049 2021 11 18 59536 139.789 245.077 -108.5552 0.242 -0.025 0.027 0.019 0.0093 0.051 0.047 2021 11 19 59537 137.868 245.245 -108.4680 0.237 0.032 0.026 0.019 0.0089 0.051 0.046 2021 11 20 59538 135.470 245.267 -108.1943 0.242 0.032 0.026 0.019 0.0090 0.052 0.045 2021 11 21 59539 133.433 245.936 -107.7699 0.250 0.011 0.026 0.019 0.0091 0.052 0.044 2021 11 22 59540 131.584 246.933 -107.2664 0.257 -0.010 0.026 0.019 0.0091 0.052 0.043 2021 11 23 59541 129.614 247.350 -106.7281 0.265 -0.031 0.026 0.019 0.0079 0.052 0.043 2021 11 24 59542 127.746 247.246 -106.2044 0.273 -0.052 0.026 0.019 0.0075 0.053 0.042 2021 11 25 59543 126.546 247.694 -105.7277 0.305 -0.030 0.026 0.019 0.0069 0.053 0.042 2021 11 26 59544 125.318 248.339 -105.3900 0.343 0.005 0.026 0.019 0.0068 0.053 0.043 2021 11 27 59545 123.926 249.137 -105.3000 0.321 -0.018 0.027 0.020 0.0068 0.054 0.043 2021 11 28 59546 122.510 250.182 -105.4501 0.277 -0.061 0.027 0.020 0.0067 0.054 0.042 2021 11 29 59547 120.935 250.800 -105.7693 0.234 -0.104 0.026 0.019 0.0067 0.054 0.042 2021 11 30 59548 119.462 251.409 -106.2356 0.190 -0.147 0.026 0.019 0.0066 0.055 0.042 2021 12 1 59549 117.908 252.101 -106.8219 0.205 -0.142 0.026 0.020 0.0066 0.055 0.042 Preliminary extension 2021 12 2 59550 116.646 253.077 -107.3817 0.235 -0.125 0.026 0.020 0.0067 0.056 0.042 2021 12 3 59551 115.236 254.139 -107.7758 0.265 -0.108 0.026 0.020 0.0067 0.056 0.043 2021 12 4 59552 113.528 254.463 -107.9062 0.275 -0.112 0.026 0.020 0.0069 0.057 0.044 2021 12 5 59553 112.212 254.544 -107.7891 0.279 -0.124 0.026 0.020 0.0070 0.057 0.045 2021 12 6 59554 110.932 255.122 -107.5299 0.282 -0.137 0.026 0.020 0.0072 0.058 0.046 2021 12 7 59555 109.266 255.631 -107.2636 0.286 -0.149 0.026 0.020 0.0073 0.059 0.047 2021 12 8 59556 106.685 256.326 -107.1092 0.287 -0.147 0.025 0.020 0.0076 0.060 0.049 2021 12 9 59557 103.985 256.752 -107.1566 0.287 -0.141 0.025 0.020 0.0078 0.060 0.051 2021 12 10 59558 101.420 257.121 -107.3939 0.287 -0.135 0.026 0.020 0.0081 0.061 0.053 2021 12 11 59559 98.444 257.387 -107.7223 0.279 -0.126 0.026 0.020 0.0084 0.500 0.500 2021 12 12 59560 95.223 257.382 -108.2027 0.267 -0.117 0.026 0.020 0.0088 0.500 0.500 2021 12 13 59561 92.510 257.417 -108.6215 0.254 -0.110 0.026 0.020 0.0092 0.500 0.500 2021 12 14 59562 90.302 258.026 -108.9605 0.248 -0.105 0.026 0.020 0.0096 0.500 0.500 2021 12 15 59563 87.839 258.996 -109.2077 0.250 -0.105 0.026 0.020 0.0100 0.500 0.500 2021 12 16 59564 85.342 259.703 -109.3429 0.260 -0.109 0.026 0.020 0.0104 0.500 0.500 2021 12 17 59565 82.625 260.750 -109.2665 0.271 -0.119 0.027 0.020 0.0109 0.500 0.500 2021 12 18 59566 80.173 261.326 -109.0583 0.280 -0.133 0.027 0.020 0.0113 0.500 0.500 2021 12 19 59567 78.729 261.666 -108.7462 0.284 -0.147 0.028 0.020 0.0117 0.500 0.500 2021 12 20 59568 77.342 262.566 -108.3943 0.285 -0.157 0.029 0.020 0.0121 0.500 0.500 2021 12 21 59569 75.404 263.451 -108.0020 0.286 -0.161 0.029 0.020 0.0126 0.500 0.500 2021 12 22 59570 73.121 264.273 -107.6162 0.289 -0.160 0.030 0.021 0.0130 0.500 0.500 2021 12 23 59571 70.867 265.186 -107.3458 0.290 -0.159 0.030 0.021 0.0134 0.500 0.500 2021 12 24 59572 68.515 266.505 -107.2832 0.286 -0.162 0.030 0.021 0.0138 0.500 0.500 2021 12 25 59573 66.062 267.817 -107.4208 0.275 -0.171 0.031 0.021 0.0142 0.500 0.500 2021 12 26 59574 64.258 268.974 -107.7743 0.258 -0.184 0.031 0.022 0.0147 0.500 0.500 2021 12 27 59575 62.776 270.373 -108.3091 0.242 -0.195 0.032 0.022 0.0152 0.500 0.500 2021 12 28 59576 61.116 271.891 -108.9507 0.232 -0.201 0.032 0.023 0.0157 0.500 0.500 2021 12 29 59577 59.196 273.538 -109.5905 0.231 -0.198 0.033 0.023 0.0161 0.500 0.500 2021 12 30 59578 57.728 274.724 -110.1054 0.238 -0.191 0.034 0.024 0.0166 0.500 0.500 2021 12 31 59579 56.325 275.979 -110.4007 0.248 -0.184 0.036 0.025 0.0170 0.500 0.500 2022 1 1 59580 54.585 276.975 -110.4783 0.255 -0.182 0.037 0.025 0.0174 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 11 2 59520 -113.919 -7.301 0.116 0.050 2021 11 3 59521 -114.076 -7.098 0.116 0.050 2021 11 4 59522 -114.274 -6.977 0.116 0.050 2021 11 5 59523 -114.417 -7.068 0.118 0.050 2021 11 6 59524 -114.174 -7.273 0.118 0.051 2021 11 7 59525 -113.720 -7.312 0.121 0.052 2021 11 8 59526 -113.374 -7.138 0.121 0.053 2021 11 9 59527 -113.247 -7.009 0.121 0.054 2021 11 10 59528 -113.363 -7.072 0.123 0.054 2021 11 11 59529 -113.428 -7.227 0.123 0.054 2021 11 12 59530 -113.370 -7.262 0.126 0.054 2021 11 13 59531 -113.185 -7.165 0.126 0.053 2021 11 14 59532 -112.994 -7.024 0.126 0.052 2021 11 15 59533 -112.892 -6.878 0.126 0.051 2021 11 16 59534 -112.883 -6.691 0.128 0.050 2021 11 17 59535 -112.918 -6.416 0.128 0.049 2021 11 18 59536 -112.878 -6.226 0.128 0.047 2021 11 19 59537 -112.755 -6.253 0.128 0.046 2021 11 20 59538 -112.586 -6.495 0.131 0.045 2021 11 21 59539 -112.425 -6.731 0.131 0.044 2021 11 22 59540 -112.282 -6.830 0.131 0.043 2021 11 23 59541 -112.157 -6.857 0.131 0.043 2021 11 24 59542 -112.031 -6.907 0.133 0.042 2021 11 25 59543 -111.742 -6.907 0.133 0.042 2021 11 26 59544 -111.268 -6.773 0.133 0.043 2021 11 27 59545 -110.920 -6.580 0.136 0.043 2021 11 28 59546 -110.876 -6.447 0.136 0.042 2021 11 29 59547 -111.138 -6.452 0.136 0.042 2021 11 30 59548 -111.496 -6.463 0.138 0.042 2021 12 1 59549 -111.672 -6.258 0.138 0.042 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 11 2 59520 0.7367 0.0070 15.04106705042 0.00000000122 2021 11 3 59521 0.8486 0.0070 15.04106703094 0.00000000122 2021 11 4 59522 0.7779 0.0070 15.04106704325 0.00000000122 2021 11 5 59523 0.5185 0.0070 15.04106708841 0.00000000122 2021 11 6 59524 0.2206 0.0071 15.04106714027 0.00000000124 2021 11 7 59525 -0.0193 0.0071 15.04106718203 0.00000000124 2021 11 8 59526 -0.1713 0.0070 15.04106720849 0.00000000122 2021 11 9 59527 -0.2182 0.0070 15.04106721666 0.00000000122 2021 11 10 59528 -0.1425 0.0070 15.04106720348 0.00000000122 2021 11 11 59529 0.0166 0.0070 15.04106717578 0.00000000122 2021 11 12 59530 0.1709 0.0068 15.04106714892 0.00000000118 2021 11 13 59531 0.3196 0.0069 15.04106712303 0.00000000120 2021 11 14 59532 0.3813 0.0069 15.04106711229 0.00000000120 2021 11 15 59533 0.3295 0.0069 15.04106712131 0.00000000120 2021 11 16 59534 0.2430 0.0069 15.04106713637 0.00000000120 2021 11 17 59535 0.1504 0.0069 15.04106715249 0.00000000120 2021 11 18 59536 0.0024 0.0070 15.04106717825 0.00000000122 2021 11 19 59537 -0.1716 0.0069 15.04106720854 0.00000000120 2021 11 20 59538 -0.3451 0.0069 15.04106723875 0.00000000120 2021 11 21 59539 -0.4589 0.0069 15.04106725856 0.00000000120 2021 11 22 59540 -0.5149 0.0069 15.04106726831 0.00000000120 2021 11 23 59541 -0.5456 0.0069 15.04106727365 0.00000000120 2021 11 24 59542 -0.5261 0.0069 15.04106727026 0.00000000120 2021 11 25 59543 -0.4280 0.0069 15.04106725318 0.00000000120 2021 11 26 59544 -0.2261 0.0068 15.04106721803 0.00000000118 2021 11 27 59545 0.0260 0.0068 15.04106717414 0.00000000118 2021 11 28 59546 0.2285 0.0068 15.04106713889 0.00000000118 2021 11 29 59547 0.3902 0.0067 15.04106711074 0.00000000117 2021 11 30 59548 0.5403 0.0067 15.04106708461 0.00000000117 2021 12 1 59549 0.5712 0.0066 15.04106707923 0.00000000115 4 - INFORMATION ON TIME SCALES TAI - UTC = 37 s. during period [59520-59549] No leap second introduced during period [59520-59549] 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 100 104 8 - 0 0 9 59521.24 to 59548.29 175 217 39 - 166 284 BKG bkg00020a.eops 49 53 4 - 12 32 9 59521.21 to 59548.21 60 77 20 - 24 37 GSFC gsf2020a.eoxy 48 44 4 8 13 33 9 59521.21 to 59548.21 76 35 20 14 18 22 IAA iaa2021a.eops 55 55 4 - 16 41 8 59521.21 to 59548.21 230 306 13 - 76 33 USNO usn2021c.eoxy 35 34 2 - 13 33 9 59521.21 to 59548.21 61 60 14 - 17 22 IVS * ivs20r1X.eops 18 19 1 - 5 14 9 59521.21 to 59548.21 78 38 17 - 10 10 VLBI Intensive GSI * gsiint2c.eopi - - 6 - - - 8 59524.33 to 59546.33 - - 11 - - - BKG * bkg2020.eopi - - 13 - - - 30 59520.79 to 59548.79 - - 26 - - - GSFC * gsf2020a.eopi - - 15 - - - 30 59520.79 to 59548.79 - - 97 - - - IAA * iaa2021a.eopi - - 43 - - - 45 59520.79 to 59548.79 - - 62 - - - USNO * usn2021b.eopi - - 12 - - - 15 59520.79 to 59534.79 - - 24 - - - GPS CODE COD*ERP_R 5 5 - 0 - - 29 59520.50 to 59548.50 26 25 - 14 - - JPL jpl*.erp 11 12 - 6 - - 29 59520.50 to 59548.50 32 37 - 20 - - GFZ gfz*.erp 8 8 - 1 - - 29 59520.50 to 59548.50 27 35 - 12 - - ESOC esa*.erp 7 8 - 3 - - 29 59520.50 to 59548.50 27 29 - 10 - - SIO sio*.erp siu*.erp 31 28 - 5 - - 29 59520.50 to 59548.50 41 35 - 14 - - EMR emr*.erp 4 3 - 0 - - 29 59520.50 to 59548.50 40 54 - 13 - - IAA gnss.res 0 0 - 0 - - 28 59520.50 to 59548.50 46 106 - 22 - - GRGS grg*.erp 223 223 - 0 - - 29 59520.50 to 59548.50 26 25 - 11 - - ASI asi*.erp 9 9 - 0 - - 29 59520.50 to 59548.50 52 39 - 65 - - MIT mit*.erp 12 12 - 1 - - 29 59520.50 to 59548.50 40 32 - 15 - - IGR * igs96p02.erp 10 10 - 2 - - 29 59520.50 to 59548.50 24 25 - 12 - - IGS * igs00p03.erp 3 3 - 0 - - 29 59520.50 to 59548.50 26 28 - 14 - - SLR MCC tg*.02 182 211 - 27 - - 30 59520.00 to 59549.00 125 115 - 190 - - IAA slr_v.dat 67 73 - 4 - - 29 59520.00 to 59549.00 204 235 - 23 - - ASI slr_oca*.eop 74 78 - 17 - - 29 59520.50 to 59548.50 208 263 - 54 - - ILRS * ilrsa.eop 52 52 - 8 - - 29 59520.50 to 59548.50 169 236 - 31 - - BULLETIN A NEOS mark3.out 21 25 5 - - - 30 59520.00 to 59549.00 50 41 23 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html