BULLETIN B 395 5 January 2021 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 0.066 0.046 0.0148 0.047 0.113 2020 11 2 59155 156.760 296.584 -175.4892 0.174 0.106 0.054 0.036 0.0177 0.126 0.126 2020 11 3 59156 155.022 296.077 -175.5506 0.159 0.096 0.055 0.036 0.0178 0.126 0.127 2020 11 4 59157 153.756 295.403 -175.5009 0.144 0.085 0.055 0.037 0.0178 0.126 0.127 2020 11 5 59158 153.116 294.628 -175.3222 0.103 0.098 0.055 0.037 0.0177 0.126 0.127 2020 11 6 59159 152.204 293.485 -175.0506 0.054 0.116 0.056 0.037 0.0179 0.126 0.126 2020 11 7 59160 150.933 292.707 -174.7265 0.089 0.099 0.056 0.038 0.0179 0.126 0.126 2020 11 8 59161 149.316 292.406 -174.5355 0.154 0.070 0.056 0.038 0.0177 0.126 0.127 2020 11 9 59162 147.825 292.052 -174.5810 0.219 0.040 0.057 0.038 0.0178 0.126 0.127 2020 11 10 59163 146.154 291.593 -174.8950 0.284 0.011 0.057 0.039 0.0179 0.127 0.127 2020 11 11 59164 144.139 291.248 -175.4908 0.270 -0.032 0.057 0.039 0.0181 0.127 0.127 2020 11 12 59165 142.123 290.642 -176.2784 0.237 -0.078 0.057 0.039 0.0183 0.127 0.127 2020 11 13 59166 140.177 290.279 -177.1548 0.190 -0.058 0.058 0.040 0.0183 0.127 0.127 2020 11 14 59167 137.794 289.624 -177.9689 0.138 -0.027 0.058 0.040 0.0189 0.132 0.133 2020 11 15 59168 135.204 288.983 -178.6182 0.085 0.000 0.058 0.041 0.0190 0.132 0.133 2020 11 16 59169 132.881 288.419 -179.0137 0.031 0.026 0.059 0.041 0.0123 0.132 0.132 2020 11 17 59170 130.793 288.066 -179.1302 -0.022 0.053 0.060 0.042 0.0123 0.130 0.130 2020 11 18 59171 128.985 287.303 -179.0234 0.005 0.059 0.061 0.043 0.0123 0.130 0.130 2020 11 19 59172 127.531 286.837 -178.7545 0.054 0.060 0.062 0.043 0.0123 0.130 0.130 2020 11 20 59173 126.311 286.605 -178.4446 0.102 0.061 0.063 0.044 0.0123 0.130 0.130 2020 11 21 59174 125.064 286.907 -178.1848 0.136 0.062 0.065 0.046 0.0124 0.126 0.128 2020 11 22 59175 124.639 285.899 -178.0690 0.165 0.062 0.068 0.048 0.0124 0.126 0.127 2020 11 23 59176 124.615 285.815 -178.1332 0.194 0.063 0.071 0.050 0.0125 0.126 0.127 2020 11 24 59177 123.737 286.311 -178.3393 0.224 0.063 0.074 0.052 0.0125 0.125 0.126 2020 11 25 59178 122.575 286.790 -178.6218 0.253 0.064 0.077 0.055 0.0126 0.125 0.126 2020 11 26 59179 120.989 287.574 -178.9613 0.153 0.086 0.081 0.057 0.0113 0.075 0.051 2020 11 27 59180 118.888 287.884 -179.1700 0.019 0.114 0.085 0.060 0.0114 0.076 0.053 2020 11 28 59181 116.151 288.168 -179.3068 -0.004 0.131 0.089 0.063 0.0114 0.077 0.055 2020 11 29 59182 113.645 288.236 -179.3003 0.014 0.143 0.093 0.065 0.0114 0.078 0.056 2020 11 30 59183 111.099 288.683 -179.2036 0.032 0.156 0.097 0.068 0.0115 0.078 0.058 2020 12 1 59184 108.488 288.137 -179.0045 0.050 0.169 0.101 0.071 0.0116 0.079 0.059 Preliminary extension 2020 12 2 59185 106.496 287.413 -178.7004 0.077 0.115 0.105 0.074 0.0116 0.080 0.061 2020 12 3 59186 104.777 287.087 -178.3214 0.107 0.043 0.109 0.077 0.0117 0.081 0.062 2020 12 4 59187 103.005 287.760 -177.9225 0.137 -0.029 0.113 0.080 0.0117 0.082 0.064 2020 12 5 59188 101.232 288.655 -177.6325 0.148 -0.058 0.116 0.084 0.0117 0.083 0.066 2020 12 6 59189 99.407 289.633 -177.5415 0.154 -0.070 0.120 0.087 0.0117 0.084 0.068 2020 12 7 59190 97.421 289.702 -177.6422 0.125 -0.016 0.050 0.034 0.0077 0.043 0.048 2020 12 8 59191 95.375 289.740 -177.9615 0.127 -0.025 0.050 0.034 0.0078 0.043 0.049 2020 12 9 59192 93.288 289.709 -178.5126 0.123 -0.020 0.051 0.034 0.0078 0.044 0.051 2020 12 10 59193 91.549 289.421 -179.1411 0.118 -0.010 0.051 0.034 0.0079 0.045 0.052 2020 12 11 59194 90.302 289.384 -179.7451 0.113 -0.001 0.051 0.034 0.0079 0.045 0.053 2020 12 12 59195 89.309 290.020 -180.1916 0.101 0.009 0.051 0.034 0.0080 0.046 0.055 2020 12 13 59196 88.080 291.173 -180.4017 0.086 0.018 0.052 0.035 0.0081 0.047 0.056 2020 12 14 59197 86.701 292.166 -180.3683 0.071 0.028 0.052 0.035 0.0081 0.048 0.057 2020 12 15 59198 85.412 292.879 -180.1115 0.057 0.037 0.053 0.035 0.0082 0.048 0.059 2020 12 16 59199 84.073 293.409 -179.7098 0.082 0.037 0.053 0.035 0.0083 0.500 0.500 2020 12 17 59200 82.910 293.993 -179.2451 0.093 0.039 0.054 0.035 0.0084 0.500 0.500 2020 12 18 59201 82.069 294.698 -178.8044 0.106 0.036 0.054 0.035 0.0085 0.500 0.500 2020 12 19 59202 81.249 294.949 -178.4507 0.119 0.030 0.054 0.036 0.0086 0.500 0.500 2020 12 20 59203 80.045 295.357 -178.3030 0.128 0.024 0.055 0.036 0.0087 0.500 0.500 2020 12 21 59204 78.812 295.483 -178.2975 0.131 0.020 0.055 0.036 0.0088 0.500 0.500 2020 12 22 59205 77.815 295.832 -178.4150 0.127 0.019 0.055 0.036 0.0089 0.500 0.500 2020 12 23 59206 77.189 296.080 -178.5616 0.116 0.022 0.056 0.036 0.0091 0.500 0.500 2020 12 24 59207 76.955 296.524 -178.6349 0.101 0.025 0.056 0.036 0.0093 0.500 0.500 2020 12 25 59208 76.635 297.275 -178.6280 0.088 0.029 0.056 0.037 0.0094 0.500 0.500 2020 12 26 59209 75.980 297.989 -178.4893 0.080 0.030 0.056 0.037 0.0096 0.500 0.500 2020 12 27 59210 74.960 298.682 -178.2059 0.082 0.029 0.057 0.037 0.0097 0.500 0.500 2020 12 28 59211 73.949 299.997 -177.7737 0.092 0.024 0.057 0.037 0.0099 0.500 0.500 2020 12 29 59212 72.603 301.648 -177.2371 0.106 0.014 0.057 0.037 0.0101 0.500 0.500 2020 12 30 59213 71.120 302.704 -176.6393 0.117 -0.001 0.058 0.038 0.0103 0.500 0.500 2020 12 31 59214 69.644 303.110 -175.9981 0.123 -0.019 0.058 0.038 0.0106 0.500 0.500 2021 1 1 59215 68.639 304.061 -175.3852 0.123 -0.036 0.058 0.038 0.0108 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 11 2 59155 -113.425 -7.589 0.317 0.126 2020 11 3 59156 -113.359 -7.719 0.317 0.127 2020 11 4 59157 -113.374 -7.814 0.317 0.127 2020 11 5 59158 -113.524 -7.901 0.317 0.127 2020 11 6 59159 -113.650 -7.965 0.317 0.126 2020 11 7 59160 -113.365 -7.933 0.317 0.126 2020 11 8 59161 -112.801 -7.738 0.317 0.127 2020 11 9 59162 -112.230 -7.478 0.317 0.127 2020 11 10 59163 -111.835 -7.276 0.319 0.127 2020 11 11 59164 -111.841 -7.133 0.319 0.127 2020 11 12 59165 -112.073 -6.983 0.319 0.127 2020 11 13 59166 -112.498 -6.851 0.319 0.127 2020 11 14 59167 -112.916 -6.940 0.332 0.133 2020 11 15 59168 -113.042 -7.167 0.332 0.133 2020 11 16 59169 -112.845 -7.220 0.332 0.132 2020 11 17 59170 -112.604 -6.993 0.327 0.130 2020 11 18 59171 -112.333 -6.783 0.327 0.130 2020 11 19 59172 -112.110 -6.856 0.327 0.130 2020 11 20 59173 -111.891 -7.109 0.327 0.130 2020 11 21 59174 -111.759 -7.212 0.317 0.128 2020 11 22 59175 -111.724 -7.035 0.317 0.127 2020 11 23 59176 -111.673 -6.749 0.317 0.127 2020 11 24 59177 -111.536 -6.565 0.314 0.126 2020 11 25 59178 -111.392 -6.486 0.314 0.126 2020 11 26 59179 -111.639 -6.359 0.189 0.051 2020 11 27 59180 -111.983 -6.148 0.191 0.053 2020 11 28 59181 -111.983 -5.976 0.194 0.055 2020 11 29 59182 -111.851 -5.961 0.196 0.056 2020 11 30 59183 -111.765 -6.091 0.196 0.058 2020 12 1 59184 -111.700 -6.256 0.199 0.059 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 11 2 59155 0.1127 0.0124 15.04106715905 0.00000000216 2020 11 3 59156 -0.0052 0.0125 15.04106717958 0.00000000218 2020 11 4 59157 -0.1017 0.0126 15.04106719637 0.00000000219 2020 11 5 59158 -0.2389 0.0127 15.04106722026 0.00000000221 2020 11 6 59159 -0.3217 0.0128 15.04106723467 0.00000000223 2020 11 7 59160 -0.2549 0.0129 15.04106722304 0.00000000225 2020 11 8 59161 -0.0783 0.0130 15.04106719230 0.00000000226 2020 11 9 59162 0.1968 0.0131 15.04106714441 0.00000000228 2020 11 10 59163 0.4636 0.0132 15.04106709796 0.00000000230 2020 11 11 59164 0.6676 0.0133 15.04106706245 0.00000000232 2020 11 12 59165 0.8387 0.0134 15.04106703266 0.00000000233 2020 11 13 59166 0.8941 0.0135 15.04106702302 0.00000000235 2020 11 14 59167 0.7757 0.0136 15.04106704363 0.00000000237 2020 11 15 59168 0.5395 0.0138 15.04106708475 0.00000000240 2020 11 16 59169 0.2432 0.0139 15.04106713633 0.00000000242 2020 11 17 59170 -0.0359 0.0141 15.04106718492 0.00000000245 2020 11 18 59171 -0.2196 0.0142 15.04106721690 0.00000000247 2020 11 19 59172 -0.2519 0.0144 15.04106722252 0.00000000251 2020 11 20 59173 -0.2300 0.0146 15.04106721871 0.00000000254 2020 11 21 59174 -0.1910 0.0149 15.04106721192 0.00000000259 2020 11 22 59175 -0.0393 0.0151 15.04106718551 0.00000000263 2020 11 23 59176 0.1367 0.0153 15.04106715487 0.00000000266 2020 11 24 59177 0.2514 0.0156 15.04106713490 0.00000000272 2020 11 25 59178 0.2858 0.0158 15.04106712892 0.00000000275 2020 11 26 59179 0.2866 0.0161 15.04106712878 0.00000000280 2020 11 27 59180 0.1848 0.0164 15.04106714650 0.00000000286 2020 11 28 59181 0.0951 0.0167 15.04106716211 0.00000000291 2020 11 29 59182 0.0069 0.0169 15.04106717747 0.00000000294 2020 11 30 59183 -0.1302 0.0172 15.04106720134 0.00000000299 2020 12 1 59184 -0.2596 0.0174 15.04106722386 0.00000000303 4 - INFORMATION ON TIME SCALES TAI - UTC = 37 s. during period [59155-59184] No leap second introduced during period [59155-59184] 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 0 NaN NaN - 0 0 0 00000.00 to 00000.00 0 0 0 - 0 0 GSFC gsf2020a.eoxy 75 53 4 14 20 48 9 59157.21 to 59180.27 81 50 15 24 32 8 IAA iaa2007a.eops 72 69 4 - 19 50 8 59157.21 to 59178.21 302 149 13 - 130 52 USNO usn2020b.eoxy 72 48 4 - 23 51 8 59157.21 to 59180.27 92 52 11 - 26 18 IVS * ivs14r1X.eops 68 33 5 - 15 43 1 59157.21 to 59157.21 0 0 0 - 0 0 VLBI Intensive GSI * gsiint2c.eopi - - 6 - - - 8 59160.44 to 59182.33 - - 32 - - - BKG * bkg2020.eopi - - 9 - - - 29 59155.79 to 59183.79 - - 23 - - - GSFC * gsf2020a.eopi - - 9 - - - 29 59155.79 to 59183.79 - - 20 - - - IAA * iaa2019a.eopi - - 9 - - - 29 59155.79 to 59183.79 - - 19 - - - PUL pul2010a.eopi - - NaN - - - 0 00000.00 to 00000.00 - - 0 - - - USNO * usnouint.data - - 9 - - - 28 59155.79 to 59183.79 - - 23 - - - GPS CODE COD*ERP_R 5 5 - 0 - - 29 59155.50 to 59183.50 111 116 - 18 - - JPL jpl*.erp 10 11 - 6 - - 29 59155.50 to 59183.50 117 110 - 19 - - GFZ gfz*.erp 5 6 - 1 - - 29 59155.50 to 59183.50 95 97 - 13 - - ESOC esa*.erp 8 9 - 3 - - 29 59155.50 to 59183.50 114 122 - 15 - - SIO sio*.erp siu*.erp 48 45 - 6 - - 29 59155.50 to 59183.50 94 128 - 15 - - EMR emr*.erp 3 3 - 0 - - 29 59155.50 to 59183.50 130 117 - 17 - - IAA gnss.res 0 0 - 0 - - 28 59155.50 to 59183.50 123 128 - 20 - - GRGS grg*.erp 61 61 - 0 - - 22 59155.50 to 59183.50 81 34 - 13 - - ASI asi*.erp 8 8 - 0 - - 27 59155.50 to 59181.50 101 127 - 76 - - MIT mit*.erp 12 12 - 2 - - 29 59155.50 to 59183.50 103 124 - 15 - - IGR * igs96p02.erp 10 11 - 2 - - 29 59155.50 to 59183.50 127 105 - 16 - - IGS * igs00p03.erp 3 3 - 0 - - 20 59155.50 to 59174.50 36 47 - 12 - - SLR MCC tg*.02 173 194 - 31 - - 30 59155.00 to 59184.00 123 200 - 164 - - IAA slr_v.dat 68 71 - 5 - - 28 59155.00 to 59184.00 188 247 - 26 - - ASI slr_oca*.eop 76 63 - 22 - - 2 59155.50 to 59156.50 159 128 - 4 - - ILRS * ilrsa.eop 61 63 - 10 - - 25 59159.50 to 59183.50 123 178 - 30 - - BULLETIN A NEOS mark3.out 21 25 9 - - - 30 59155.00 to 59184.00 87 144 10 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html