BULLETIN B 393 2 November 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 0.045 0.031 0.0126 0.044 0.115 2020 9 2 59094 214.888 359.360 -184.4359 0.174 -0.055 0.046 0.033 0.0114 0.104 0.104 2020 9 3 59095 214.008 357.869 -183.6718 0.173 -0.077 0.046 0.033 0.0114 0.105 0.104 2020 9 4 59096 213.234 356.016 -183.0210 0.172 -0.099 0.046 0.033 0.0113 0.101 0.100 2020 9 5 59097 212.795 354.430 -182.4364 0.174 -0.098 0.046 0.033 0.0111 0.095 0.096 2020 9 6 59098 212.274 353.191 -181.8721 0.178 -0.088 0.046 0.033 0.0110 0.096 0.095 2020 9 7 59099 211.790 351.835 -181.2925 0.182 -0.079 0.045 0.032 0.0110 0.096 0.094 2020 9 8 59100 211.193 350.339 -180.6562 0.185 -0.069 0.045 0.031 0.0109 0.097 0.093 2020 9 9 59101 210.918 349.451 -179.9467 0.189 -0.059 0.045 0.031 0.0109 0.097 0.092 2020 9 10 59102 210.855 348.811 -179.1721 0.075 -0.048 0.045 0.031 0.0109 0.098 0.092 2020 9 11 59103 210.933 348.368 -178.3511 -0.070 -0.037 0.045 0.031 0.0114 0.102 0.098 2020 9 12 59104 210.314 347.629 -177.5178 -0.071 -0.030 0.045 0.031 0.0117 0.100 0.100 2020 9 13 59105 209.427 346.406 -176.7408 -0.019 -0.024 0.045 0.031 0.0117 0.101 0.099 2020 9 14 59106 208.717 345.499 -176.1147 0.032 -0.019 0.045 0.031 0.0117 0.101 0.098 2020 9 15 59107 208.051 344.156 -175.7085 0.083 -0.013 0.045 0.031 0.0117 0.102 0.098 2020 9 16 59108 207.856 342.757 -175.5535 0.044 -0.052 0.045 0.031 0.0118 0.103 0.099 2020 9 17 59109 207.763 341.482 -175.6637 -0.020 -0.102 0.045 0.031 0.0120 0.104 0.102 2020 9 18 59110 207.499 340.031 -175.9844 -0.084 -0.153 0.045 0.031 0.0126 0.113 0.113 2020 9 19 59111 206.755 338.625 -176.4092 -0.077 -0.170 0.045 0.031 0.0128 0.114 0.117 2020 9 20 59112 205.778 337.224 -176.7967 -0.044 -0.174 0.045 0.031 0.0134 0.119 0.123 2020 9 21 59113 204.647 335.988 -177.0190 -0.011 -0.179 0.045 0.031 0.0136 0.121 0.128 2020 9 22 59114 203.448 334.984 -177.0237 0.023 -0.183 0.045 0.031 0.0138 0.123 0.134 2020 9 23 59115 202.369 333.990 -176.8324 0.032 -0.135 0.045 0.031 0.0141 0.124 0.137 2020 9 24 59116 201.447 332.996 -176.4820 0.035 -0.072 0.045 0.031 0.0142 0.125 0.139 2020 9 25 59117 200.099 331.836 -176.0287 0.038 -0.010 0.045 0.031 0.0143 0.126 0.142 2020 9 26 59118 198.705 330.543 -175.5265 0.044 0.011 0.046 0.031 0.0143 0.127 0.143 2020 9 27 59119 197.235 329.252 -175.0164 0.052 0.017 0.046 0.031 0.0144 0.129 0.144 2020 9 28 59120 196.126 327.944 -174.5224 0.059 0.023 0.046 0.031 0.0145 0.130 0.144 2020 9 29 59121 195.040 326.609 -174.0769 0.067 0.029 0.046 0.032 0.0148 0.131 0.145 2020 9 30 59122 194.221 325.299 -173.7115 0.092 0.004 0.046 0.032 0.0149 0.131 0.144 2020 10 1 59123 193.592 324.399 -173.4355 0.121 -0.029 0.047 0.032 0.0150 0.132 0.144 Preliminary extension 2020 10 2 59124 192.652 323.719 -173.2415 0.151 -0.062 0.047 0.032 0.0152 0.133 0.143 2020 10 3 59125 191.331 322.854 -173.1048 0.142 -0.057 0.047 0.032 0.0153 0.134 0.142 2020 10 4 59126 190.373 321.581 -172.9737 0.118 -0.038 0.048 0.033 0.0154 0.135 0.141 2020 10 5 59127 190.052 320.101 -172.7951 0.095 -0.019 0.048 0.033 0.0154 0.136 0.140 2020 10 6 59128 189.567 319.191 -172.5157 0.071 0.001 0.049 0.033 0.0154 0.137 0.139 2020 10 7 59129 188.471 318.528 -172.0906 0.071 0.001 0.049 0.033 0.0155 0.138 0.141 2020 10 8 59130 187.232 317.574 -171.5505 0.077 -0.004 0.050 0.034 0.0154 0.139 0.142 2020 10 9 59131 185.866 316.265 -170.9429 0.084 -0.008 0.050 0.034 0.0154 0.140 0.144 2020 10 10 59132 184.607 314.917 -170.3483 0.083 -0.020 0.051 0.035 0.0154 0.141 0.146 2020 10 11 59133 183.081 313.852 -169.8277 0.080 -0.035 0.052 0.035 0.0154 0.142 0.148 2020 10 12 59134 181.378 312.491 -169.4240 0.078 -0.050 0.053 0.036 0.0154 0.142 0.149 2020 10 13 59135 180.138 311.311 -169.2890 0.075 -0.065 0.055 0.037 0.0154 0.143 0.151 2020 10 14 59136 179.048 310.487 -169.4785 0.072 -0.080 0.056 0.038 0.0154 0.144 0.152 2020 10 15 59137 178.254 309.579 -169.9339 0.000 0.000 0.058 0.039 0.0155 0.145 0.155 2020 10 16 59138 177.910 308.800 -170.6167 0.000 0.000 0.060 0.040 0.0156 0.146 0.157 2020 10 17 59139 177.694 308.244 -171.4275 0.000 0.000 0.062 0.041 0.0157 0.147 0.159 2020 10 18 59140 177.842 307.481 -172.2049 0.043 -0.107 0.041 0.028 0.0079 0.034 0.045 2020 10 19 59141 177.146 306.654 -172.7374 -0.015 -0.207 0.042 0.029 0.0081 0.034 0.048 2020 10 20 59142 175.824 305.670 -173.0213 -0.073 -0.307 0.043 0.029 0.0084 0.035 0.051 2020 10 21 59143 174.403 304.761 -173.1381 -0.005 -0.133 0.044 0.030 0.0086 0.500 0.500 2020 10 22 59144 173.213 304.053 -173.1268 0.021 -0.094 0.045 0.030 0.0088 0.500 0.500 2020 10 23 59145 172.071 303.221 -173.1148 0.053 -0.059 0.046 0.031 0.0090 0.500 0.500 2020 10 24 59146 170.955 302.494 -173.1924 0.079 -0.042 0.047 0.031 0.0093 0.500 0.500 2020 10 25 59147 169.499 301.578 -173.3231 0.091 -0.046 0.047 0.032 0.0095 0.500 0.500 2020 10 26 59148 168.175 300.700 -173.5116 0.087 -0.060 0.048 0.032 0.0098 0.500 0.500 2020 10 27 59149 166.916 299.908 -173.7722 0.076 -0.070 0.049 0.032 0.0101 0.500 0.500 2020 10 28 59150 165.283 299.310 -174.1058 0.066 -0.070 0.050 0.033 0.0104 0.500 0.500 2020 10 29 59151 163.630 298.506 -174.4590 0.064 -0.063 0.050 0.033 0.0107 0.500 0.500 2020 10 30 59152 162.258 298.334 -174.7442 0.068 -0.060 0.051 0.034 0.0110 0.500 0.500 2020 10 31 59153 160.365 297.810 -175.0704 0.075 -0.067 0.051 0.034 0.0113 0.500 0.500 2020 11 1 59154 158.501 297.166 -175.3357 0.079 -0.084 0.052 0.034 0.0117 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 9 2 59094 -117.387 -10.195 0.261 0.104 2020 9 3 59095 -117.419 -9.911 0.264 0.104 2020 9 4 59096 -117.502 -9.673 0.254 0.100 2020 9 5 59097 -117.550 -9.586 0.239 0.096 2020 9 6 59098 -117.459 -9.623 0.241 0.095 2020 9 7 59099 -117.228 -9.666 0.241 0.094 2020 9 8 59100 -117.077 -9.672 0.244 0.093 2020 9 9 59101 -117.278 -9.720 0.244 0.092 2020 9 10 59102 -118.101 -9.873 0.246 0.092 2020 9 11 59103 -118.899 -10.062 0.256 0.098 2020 9 12 59104 -118.839 -10.155 0.251 0.100 2020 9 13 59105 -118.221 -10.109 0.254 0.099 2020 9 14 59106 -117.572 -9.993 0.254 0.098 2020 9 15 59107 -117.115 -9.834 0.256 0.098 2020 9 16 59108 -117.041 -9.632 0.259 0.099 2020 9 17 59109 -117.165 -9.397 0.261 0.102 2020 9 18 59110 -117.493 -9.329 0.284 0.113 2020 9 19 59111 -117.787 -9.525 0.287 0.117 2020 9 20 59112 -117.963 -9.831 0.299 0.123 2020 9 21 59113 -117.974 -9.971 0.304 0.128 2020 9 22 59114 -117.871 -9.888 0.309 0.134 2020 9 23 59115 -117.808 -9.726 0.312 0.137 2020 9 24 59116 -117.790 -9.663 0.314 0.139 2020 9 25 59117 -117.816 -9.659 0.317 0.142 2020 9 26 59118 -117.823 -9.657 0.319 0.143 2020 9 27 59119 -117.698 -9.638 0.324 0.144 2020 9 28 59120 -117.417 -9.626 0.327 0.144 2020 9 29 59121 -117.091 -9.571 0.329 0.145 2020 9 30 59122 -116.812 -9.399 0.329 0.144 2020 10 1 59123 -116.635 -9.098 0.332 0.144 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 9 2 59094 -0.8078 0.0122 15.04106731930 0.00000000212 2020 9 3 59095 -0.6993 0.0122 15.04106730041 0.00000000212 2020 9 4 59096 -0.6290 0.0123 15.04106728817 0.00000000214 2020 9 5 59097 -0.5731 0.0124 15.04106727844 0.00000000216 2020 9 6 59098 -0.5450 0.0125 15.04106727355 0.00000000218 2020 9 7 59099 -0.5934 0.0117 15.04106728197 0.00000000204 2020 9 8 59100 -0.6743 0.0117 15.04106729606 0.00000000204 2020 9 9 59101 -0.7776 0.0118 15.04106731404 0.00000000205 2020 9 10 59102 -0.8106 0.0118 15.04106731978 0.00000000205 2020 9 11 59103 -0.7954 0.0119 15.04106731714 0.00000000207 2020 9 12 59104 -0.7983 0.0119 15.04106731764 0.00000000207 2020 9 13 59105 -0.7225 0.0117 15.04106730445 0.00000000204 2020 9 14 59106 -0.5314 0.0117 15.04106727118 0.00000000204 2020 9 15 59107 -0.2763 0.0118 15.04106722677 0.00000000205 2020 9 16 59108 -0.0032 0.0118 15.04106717923 0.00000000205 2020 9 17 59109 0.2120 0.0118 15.04106714176 0.00000000205 2020 9 18 59110 0.3569 0.0119 15.04106711654 0.00000000207 2020 9 19 59111 0.4253 0.0120 15.04106710463 0.00000000209 2020 9 20 59112 0.3203 0.0120 15.04106712291 0.00000000209 2020 9 21 59113 0.1175 0.0117 15.04106715822 0.00000000204 2020 9 22 59114 -0.1062 0.0118 15.04106719716 0.00000000205 2020 9 23 59115 -0.2892 0.0118 15.04106722902 0.00000000205 2020 9 24 59116 -0.4057 0.0118 15.04106724930 0.00000000205 2020 9 25 59117 -0.4430 0.0119 15.04106725579 0.00000000207 2020 9 26 59118 -0.4810 0.0119 15.04106726241 0.00000000207 2020 9 27 59119 -0.5324 0.0120 15.04106727135 0.00000000209 2020 9 28 59120 -0.5115 0.0120 15.04106726772 0.00000000209 2020 9 29 59121 -0.3923 0.0121 15.04106724696 0.00000000211 2020 9 30 59122 -0.2918 0.0121 15.04106722947 0.00000000211 2020 10 1 59123 -0.2263 0.0122 15.04106721807 0.00000000212 4 - INFORMATION ON TIME SCALES TAI - UTC = 37 s. during period [59094-59123] No leap second introduced during period [59094-59123] 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 91 91 5 - 23 58 4 59096.27 to 59117.27 101 50 5 - 75 39 GSFC gsf2020a.eoxy 181 306 17 58 39 108 9 59096.27 to 59121.21 106 356 13 60 54 38 IAA iaa2007a.eops 54 53 3 - 15 38 7 59096.27 to 59117.27 129 145 15 - 64 23 USNO usn2020b.eoxy 43 38 2 - 14 42 8 59096.27 to 59121.21 97 46 13 - 38 23 IVS * ivs14r1X.eops 44 36 2 - 12 37 8 59096.27 to 59121.21 64 40 14 - 17 6 VLBI Intensive GSI * gsiint2c.eopi - - 7 - - - 8 59097.33 to 59119.33 - - 14 - - - BKG * bkg2020.eopi - - 10 - - - 32 59095.79 to 59122.79 - - 55 - - - GSFC * gsf2020a.eopi - - 10 - - - 31 59095.79 to 59122.79 - - 61 - - - IAA * iaa2019a.eopi - - 9 - - - 22 59096.80 to 59121.79 - - 16 - - - USNO * usnouint.data - - 10 - - - 28 59095.79 to 59122.79 - - 28 - - - GPS CODE COD*ERP_R 5 5 - 1 - - 29 59094.50 to 59122.50 33 30 - 14 - - JPL jpl*.erp 8 9 - 8 - - 29 59094.50 to 59122.50 40 27 - 14 - - GFZ gfz*.erp 4 5 - 1 - - 29 59094.50 to 59122.50 38 34 - 10 - - ESOC esa*.erp 7 9 - 4 - - 29 59094.50 to 59122.50 35 30 - 9 - - SIO sio*.erp siu*.erp 33 31 - 6 - - 25 59094.50 to 59122.50 43 24 - 11 - - EMR emr*.erp 3 3 - 1 - - 29 59094.50 to 59122.50 38 41 - 14 - - IAA gnss.res 0 0 - 0 - - 29 59094.50 to 59122.50 51 74 - 25 - - GRGS grg*.erp 61 61 - 0 - - 29 59094.50 to 59122.50 35 20 - 14 - - ASI asi*.erp 8 8 - 0 - - 24 59099.50 to 59122.50 38 36 - 53 - - MIT mit*.erp 12 12 - 2 - - 29 59094.50 to 59122.50 36 33 - 13 - - IGR * igs96p02.erp 10 8 - 2 - - 29 59094.50 to 59122.50 30 32 - 11 - - IGS * igs00p03.erp 3 3 - 0 - - 29 59094.50 to 59122.50 33 29 - 12 - - SLR MCC tg*.02 164 204 - 27 - - 30 59094.00 to 59123.00 95 145 - 232 - - IAA slr_v.dat 63 76 - 5 - - 30 59094.00 to 59123.00 178 236 - 29 - - ILRS * ilrsa.eop 43 52 - 8 - - 29 59094.50 to 59122.50 129 153 - 19 - - BULLETIN A NEOS mark3.out 28 26 7 - - - 30 59094.00 to 59123.00 43 32 15 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html