BULLETIN B 394 1 December 2020 Contents are described in ftp://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 0.049 0.032 0.0161 0.059 0.161 2020 10 2 59124 192.652 323.725 -173.2413 0.151 -0.062 0.047 0.032 0.0153 0.133 0.142 2020 10 3 59125 191.328 322.856 -173.1044 0.142 -0.057 0.047 0.032 0.0154 0.133 0.140 2020 10 4 59126 190.376 321.580 -172.9735 0.118 -0.038 0.048 0.033 0.0155 0.135 0.139 2020 10 5 59127 190.057 320.101 -172.7946 0.095 -0.019 0.048 0.033 0.0156 0.136 0.138 2020 10 6 59128 189.565 319.194 -172.5157 0.071 0.001 0.049 0.033 0.0156 0.137 0.137 2020 10 7 59129 188.477 318.544 -172.0944 0.071 0.001 0.046 0.031 0.0157 0.138 0.138 2020 10 8 59130 187.213 317.589 -171.5545 0.077 -0.004 0.047 0.031 0.0156 0.139 0.140 2020 10 9 59131 185.866 316.267 -170.9438 0.084 -0.008 0.047 0.031 0.0156 0.140 0.142 2020 10 10 59132 184.598 314.938 -170.3470 0.083 -0.020 0.047 0.031 0.0156 0.142 0.144 2020 10 11 59133 183.096 313.821 -169.8266 0.080 -0.035 0.047 0.032 0.0156 0.143 0.146 2020 10 12 59134 181.364 312.491 -169.4229 0.078 -0.050 0.048 0.032 0.0156 0.144 0.148 2020 10 13 59135 180.150 311.276 -169.2873 0.075 -0.065 0.048 0.032 0.0156 0.145 0.150 2020 10 14 59136 179.028 310.496 -169.4783 0.072 -0.080 0.048 0.032 0.0157 0.146 0.152 2020 10 15 59137 178.273 309.566 -169.9480 0.070 -0.037 0.048 0.032 0.0158 0.148 0.155 2020 10 16 59138 177.870 308.850 -170.6403 0.068 0.021 0.049 0.032 0.0159 0.149 0.160 2020 10 17 59139 177.728 308.173 -171.4530 0.045 0.029 0.049 0.032 0.0159 0.151 0.164 2020 10 18 59140 177.883 307.413 -172.2056 0.014 0.019 0.049 0.032 0.0160 0.153 0.168 2020 10 19 59141 177.193 306.640 -172.7351 -0.016 0.008 0.049 0.032 0.0161 0.154 0.171 2020 10 20 59142 175.829 305.561 -173.0135 -0.047 -0.002 0.049 0.033 0.0162 0.155 0.174 2020 10 21 59143 174.443 304.709 -173.1105 0.000 0.000 0.049 0.033 0.0162 0.156 0.175 2020 10 22 59144 173.243 304.010 -173.1120 0.000 0.000 0.049 0.032 0.0162 0.157 0.176 2020 10 23 59145 172.171 303.139 -173.1129 0.000 0.000 0.049 0.033 0.0163 0.158 0.177 2020 10 24 59146 170.962 302.442 -173.1915 0.000 0.000 0.050 0.033 0.0163 0.159 0.178 2020 10 25 59147 169.604 301.470 -173.3234 0.000 0.000 0.050 0.033 0.0164 0.159 0.178 2020 10 26 59148 168.200 300.624 -173.5104 0.000 0.000 0.051 0.034 0.0166 0.160 0.179 2020 10 27 59149 167.063 299.797 -173.7708 0.000 0.000 0.052 0.034 0.0167 0.161 0.179 2020 10 28 59150 165.261 299.258 -174.1049 0.000 0.000 0.052 0.035 0.0170 0.161 0.180 2020 10 29 59151 163.724 298.395 -174.4617 0.000 0.000 0.053 0.035 0.0172 0.162 0.180 2020 10 30 59152 162.249 298.306 -174.7433 0.000 0.000 0.054 0.036 0.0174 0.163 0.180 2020 10 31 59153 160.507 297.737 -175.0667 0.000 0.000 0.054 0.036 0.0176 0.163 0.181 2020 11 1 59154 158.533 297.085 -175.3212 0.000 0.000 0.055 0.037 0.0178 0.164 0.181 Preliminary extension 2020 11 2 59155 156.731 296.609 -175.4939 0.199 0.017 0.039 0.026 0.0084 0.043 0.042 2020 11 3 59156 155.011 296.100 -175.5485 0.190 -0.016 0.039 0.026 0.0085 0.043 0.043 2020 11 4 59157 153.748 295.459 -175.4931 0.181 -0.049 0.039 0.027 0.0085 0.044 0.044 2020 11 5 59158 153.106 294.661 -175.3132 0.110 -0.034 0.040 0.027 0.0086 0.044 0.045 2020 11 6 59159 152.177 293.553 -175.0285 0.022 -0.007 0.040 0.027 0.0086 0.045 0.046 2020 11 7 59160 150.948 292.737 -174.7238 0.031 -0.043 0.040 0.027 0.0087 0.045 0.046 2020 11 8 59161 149.293 292.444 -174.5291 0.076 -0.100 0.041 0.028 0.0088 0.046 0.047 2020 11 9 59162 147.841 292.080 -174.5863 0.120 -0.158 0.041 0.028 0.0089 0.047 0.048 2020 11 10 59163 146.132 291.680 -174.9253 0.165 -0.216 0.041 0.028 0.0089 0.047 0.049 2020 11 11 59164 144.167 291.265 -175.4888 0.156 -0.186 0.042 0.029 0.0091 0.048 0.051 2020 11 12 59165 142.082 290.712 -176.2486 0.134 -0.132 0.042 0.029 0.0092 0.049 0.054 2020 11 13 59166 140.171 290.330 -177.1522 0.113 -0.079 0.043 0.029 0.0094 0.050 0.056 2020 11 14 59167 137.751 289.679 -177.9743 0.074 -0.046 0.043 0.030 0.0095 0.051 0.059 2020 11 15 59168 135.171 289.008 -178.6232 0.030 -0.020 0.044 0.030 0.0097 0.051 0.061 2020 11 16 59169 132.778 288.492 -179.0147 -0.014 0.006 0.045 0.031 0.0099 0.052 0.063 2020 11 17 59170 130.763 288.021 -179.1293 -0.059 0.032 0.046 0.032 0.0100 0.053 0.065 2020 11 18 59171 128.964 287.414 -179.0321 0.041 -0.023 0.047 0.032 0.0103 0.500 0.500 2020 11 19 59172 127.542 286.847 -178.7627 0.064 -0.021 0.048 0.033 0.0105 0.500 0.500 2020 11 20 59173 126.201 286.765 -178.4543 0.086 -0.020 0.048 0.033 0.0108 0.500 0.500 2020 11 21 59174 125.114 286.817 -178.1973 0.104 -0.022 0.049 0.034 0.0110 0.500 0.500 2020 11 22 59175 124.393 286.390 -178.0752 0.111 -0.028 0.050 0.034 0.0113 0.500 0.500 2020 11 23 59176 124.134 286.300 -178.1491 0.108 -0.034 0.050 0.035 0.0116 0.500 0.500 2020 11 24 59177 123.503 286.671 -178.3635 0.094 -0.036 0.051 0.035 0.0119 0.500 0.500 2020 11 25 59178 122.520 287.024 -178.6417 0.078 -0.035 0.052 0.036 0.0122 0.500 0.500 2020 11 26 59179 120.897 287.516 -178.9622 0.068 -0.032 0.053 0.037 0.0125 0.500 0.500 2020 11 27 59180 118.809 287.930 -179.1609 0.072 -0.034 0.054 0.037 0.0128 0.500 0.500 2020 11 28 59181 116.094 288.341 -179.3032 0.091 -0.041 0.055 0.038 0.0131 0.500 0.500 2020 11 29 59182 113.355 288.529 -179.3035 0.118 -0.053 0.055 0.039 0.0135 0.500 0.500 2020 11 30 59183 110.652 288.684 -179.1908 0.140 -0.063 0.056 0.039 0.0139 0.500 0.500 2020 12 1 59184 108.287 288.451 -178.9653 0.144 -0.066 0.057 0.040 0.0142 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 2020 10 2 59124 -116.497 -8.830 0.334 0.142 2020 10 3 59125 -116.416 -8.726 0.334 0.140 2020 10 4 59126 -116.283 -8.799 0.339 0.139 2020 10 5 59127 -116.084 -8.917 0.342 0.138 2020 10 6 59128 -115.972 -8.992 0.344 0.137 2020 10 7 59129 -116.068 -9.102 0.347 0.138 2020 10 8 59130 -116.397 -9.290 0.349 0.140 2020 10 9 59131 -116.638 -9.458 0.352 0.142 2020 10 10 59132 -116.468 -9.445 0.357 0.144 2020 10 11 59133 -115.927 -9.210 0.359 0.146 2020 10 12 59134 -115.389 -8.902 0.362 0.148 2020 10 13 59135 -115.114 -8.653 0.365 0.150 2020 10 14 59136 -115.058 -8.431 0.367 0.152 2020 10 15 59137 -115.144 -8.144 0.372 0.155 2020 10 16 59138 -115.361 -7.992 0.375 0.160 2020 10 17 59139 -115.610 -8.188 0.380 0.164 2020 10 18 59140 -115.634 -8.525 0.385 0.168 2020 10 19 59141 -115.435 -8.635 0.387 0.171 2020 10 20 59142 -115.280 -8.456 0.390 0.174 2020 10 21 59143 -115.104 -8.284 0.392 0.175 2020 10 22 59144 -115.124 -8.370 0.395 0.176 2020 10 23 59145 -115.137 -8.580 0.397 0.177 2020 10 24 59146 -115.157 -8.649 0.400 0.178 2020 10 25 59147 -115.136 -8.522 0.400 0.178 2020 10 26 59148 -114.976 -8.349 0.402 0.179 2020 10 27 59149 -114.705 -8.225 0.405 0.179 2020 10 28 59150 -114.473 -8.087 0.405 0.180 2020 10 29 59151 -114.358 -7.854 0.407 0.180 2020 10 30 59152 -114.290 -7.598 0.410 0.180 2020 10 31 59153 -114.178 -7.477 0.410 0.181 2020 11 1 59154 -114.017 -7.545 0.412 0.181 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 2020 10 2 59124 -0.1769 0.0123 15.04106720947 0.00000000214 2020 10 3 59125 -0.1385 0.0124 15.04106720278 0.00000000216 2020 10 4 59126 -0.1437 0.0125 15.04106720369 0.00000000218 2020 10 5 59127 -0.2063 0.0126 15.04106721458 0.00000000219 2020 10 6 59128 -0.3291 0.0127 15.04106723596 0.00000000221 2020 10 7 59129 -0.4769 0.0117 15.04106726169 0.00000000204 2020 10 8 59130 -0.5752 0.0117 15.04106727880 0.00000000204 2020 10 9 59131 -0.6027 0.0118 15.04106728359 0.00000000205 2020 10 10 59132 -0.5638 0.0118 15.04106727682 0.00000000205 2020 10 11 59133 -0.4507 0.0118 15.04106725713 0.00000000205 2020 10 12 59134 -0.2698 0.0118 15.04106722564 0.00000000205 2020 10 13 59135 0.0023 0.0119 15.04106717827 0.00000000207 2020 10 14 59136 0.3013 0.0119 15.04106712622 0.00000000207 2020 10 15 59137 0.5931 0.0120 15.04106707542 0.00000000209 2020 10 16 59138 0.7682 0.0120 15.04106704494 0.00000000209 2020 10 17 59139 0.7984 0.0121 15.04106703968 0.00000000211 2020 10 18 59140 0.6699 0.0122 15.04106706205 0.00000000212 2020 10 19 59141 0.3985 0.0122 15.04106710930 0.00000000212 2020 10 20 59142 0.1477 0.0123 15.04106715296 0.00000000214 2020 10 21 59143 0.0250 0.0124 15.04106717432 0.00000000216 2020 10 22 59144 0.0231 0.0121 15.04106717465 0.00000000211 2020 10 23 59145 0.0559 0.0121 15.04106716894 0.00000000211 2020 10 24 59146 0.1156 0.0122 15.04106715855 0.00000000212 2020 10 25 59147 0.1542 0.0123 15.04106715183 0.00000000214 2020 10 26 59148 0.2076 0.0123 15.04106714253 0.00000000214 2020 10 27 59149 0.3086 0.0124 15.04106712495 0.00000000216 2020 10 28 59150 0.3337 0.0125 15.04106712058 0.00000000218 2020 10 29 59151 0.3445 0.0125 15.04106711870 0.00000000218 2020 10 30 59152 0.3312 0.0126 15.04106712101 0.00000000219 2020 10 31 59153 0.2812 0.0127 15.04106712972 0.00000000221 2020 11 1 59154 0.2189 0.0128 15.04106714056 0.00000000223 4 - INFORMATION ON TIME SCALES TAI - UTC = 37 s. during period [59124-59154] No leap second introduced during period [59124-59154] 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 bkg00014.eops 75 75 4 - 16 44 2 59124.27 to 59131.27 67 40 8 - 0 1 GSFC gsf2020a.eoxy 57 50 4 14 18 49 10 59124.27 to 59152.27 102 57 19 22 89 61 IAA iaa2007a.eops 51 54 4 - 15 41 9 59124.27 to 59152.27 115 44 21 - 98 74 USNO usn2020b.eoxy 41 38 3 - 15 44 9 59124.27 to 59152.27 90 57 15 - 92 61 IVS * ivs14r1X.eops 33 28 2 - 11 31 6 59124.27 to 59142.21 57 62 10 - 6 8 VLBI Intensive GSI * gsiint2c.eopi - - 8 - - - 8 59125.33 to 59147.33 - - 21 - - - BKG * bkg2020.eopi - - 15 - - - 27 59124.80 to 59152.80 - - 22 - - - GSFC * gsf2020a.eopi - - 14 - - - 26 59124.80 to 59152.80 - - 301 - - - IAA * iaa2019a.eopi - - 12 - - - 25 59124.80 to 59152.80 - - 22 - - - USNO * usnouint.data - - 13 - - - 25 59124.80 to 59151.79 - - 21 - - - GPS CODE COD*ERP_R 5 5 - 0 - - 30 59124.50 to 59153.50 29 26 - 14 - - JPL jpl*.erp 10 12 - 7 - - 30 59124.50 to 59153.50 34 34 - 18 - - GFZ gfz*.erp 4 5 - 1 - - 30 59124.50 to 59153.50 32 30 - 9 - - ESOC esa*.erp 8 9 - 3 - - 30 59124.50 to 59153.50 32 27 - 9 - - SIO sio*.erp siu*.erp 33 28 - 5 - - 29 59124.50 to 59153.50 31 32 - 12 - - EMR emr*.erp 3 3 - 1 - - 30 59124.50 to 59153.50 47 34 - 14 - - IAA gnss.res 0 0 - 0 - - 29 59124.50 to 59153.50 62 82 - 21 - - GRGS grg*.erp 60 60 - 0 - - 30 59124.50 to 59153.50 29 25 - 12 - - ASI asi*.erp 8 8 - 0 - - 23 59124.50 to 59146.50 44 34 - 58 - - MIT mit*.erp 12 11 - 2 - - 30 59124.50 to 59153.50 31 31 - 11 - - IGR * igs96p02.erp 10 10 - 2 - - 30 59124.50 to 59153.50 25 25 - 11 - - IGS * igs00p03.erp 3 3 - 0 - - 30 59124.50 to 59153.50 28 27 - 11 - - SLR MCC tg*.02 190 219 - 34 - - 31 59124.00 to 59154.00 93 179 - 185 - - IAA slr_v.dat 75 84 - 5 - - 28 59124.00 to 59154.00 258 230 - 26 - - ASI slr_oca*.eop 76 82 - 19 - - 30 59124.50 to 59153.50 171 227 - 82 - - ILRS * ilrsa.eop 53 55 - 8 - - 25 59124.50 to 59148.50 136 109 - 28 - - BULLETIN A NEOS mark3.out 28 18 8 - - - 31 59124.00 to 59154.00 51 41 11 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html