BULLETIN B 391 2 September 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 0.0099 0.031 0.063 2020 7 2 59032 168.557 431.033 -239.4930 0.128 -0.156 0.045 0.031 0.0093 0.074 0.056 2020 7 3 59033 170.032 430.055 -238.6042 0.145 -0.167 0.045 0.031 0.0094 0.075 0.056 2020 7 4 59034 171.560 428.853 -237.4976 0.172 -0.173 0.045 0.031 0.0092 0.070 0.053 2020 7 5 59035 173.368 427.397 -236.2157 0.199 -0.179 0.045 0.031 0.0092 0.069 0.052 2020 7 6 59036 175.553 426.079 -234.8932 0.226 -0.186 0.045 0.031 0.0092 0.070 0.052 2020 7 7 59037 177.661 424.849 -233.6113 0.253 -0.193 0.045 0.031 0.0092 0.071 0.053 2020 7 8 59038 179.613 423.425 -232.4088 0.226 -0.189 0.046 0.032 0.0092 0.071 0.053 2020 7 9 59039 181.521 421.864 -231.2898 0.185 -0.183 0.045 0.031 0.0092 0.072 0.053 2020 7 10 59040 183.418 420.421 -230.2231 0.145 -0.177 0.045 0.031 0.0092 0.073 0.054 2020 7 11 59041 185.188 419.417 -229.2534 0.132 -0.166 0.045 0.031 0.0092 0.073 0.054 2020 7 12 59042 186.700 418.240 -228.2505 0.130 -0.154 0.046 0.031 0.0092 0.074 0.054 2020 7 13 59043 187.629 416.964 -227.2025 0.127 -0.143 0.045 0.031 0.0092 0.075 0.054 2020 7 14 59044 188.400 415.662 -226.1191 0.125 -0.131 0.045 0.031 0.0093 0.076 0.054 2020 7 15 59045 189.708 414.695 -224.9892 0.140 -0.144 0.045 0.031 0.0094 0.077 0.056 2020 7 16 59046 190.936 413.918 -223.7845 0.159 -0.165 0.046 0.031 0.0096 0.078 0.058 2020 7 17 59047 192.195 412.935 -222.4785 0.178 -0.186 0.046 0.031 0.0098 0.075 0.056 2020 7 18 59048 193.260 411.933 -221.1074 0.186 -0.180 0.046 0.031 0.0099 0.077 0.058 2020 7 19 59049 193.896 410.755 -219.6918 0.190 -0.164 0.046 0.031 0.0102 0.078 0.059 2020 7 20 59050 194.356 409.458 -218.2373 0.195 -0.148 0.046 0.031 0.0104 0.079 0.061 2020 7 21 59051 194.688 408.238 -216.8640 0.199 -0.132 0.046 0.031 0.0105 0.080 0.064 2020 7 22 59052 195.127 406.704 -215.6688 0.166 -0.127 0.046 0.031 0.0107 0.082 0.066 2020 7 23 59053 195.548 405.185 -214.7063 0.124 -0.127 0.046 0.031 0.0102 0.081 0.066 2020 7 24 59054 196.364 403.990 -213.9791 0.082 -0.126 0.046 0.031 0.0103 0.082 0.068 2020 7 25 59055 197.234 402.847 -213.4367 0.085 -0.121 0.046 0.031 0.0104 0.083 0.071 2020 7 26 59056 197.779 401.665 -212.9758 0.105 -0.115 0.046 0.031 0.0106 0.084 0.075 2020 7 27 59057 198.097 400.516 -212.4662 0.124 -0.109 0.046 0.031 0.0108 0.086 0.078 2020 7 28 59058 198.141 399.287 -211.8373 0.144 -0.102 0.046 0.031 0.0109 0.087 0.083 2020 7 29 59059 198.611 398.212 -211.0816 0.088 -0.047 0.046 0.031 0.0110 0.089 0.086 2020 7 30 59060 199.226 397.118 -210.1849 0.013 0.020 0.046 0.031 0.0111 0.090 0.089 2020 7 31 59061 199.865 395.989 -209.1724 -0.062 0.087 0.047 0.032 0.0112 0.091 0.093 2020 8 1 59062 200.902 394.754 -208.1198 -0.057 0.084 0.047 0.032 0.0113 0.093 0.096 Preliminary extension 2020 8 2 59063 202.636 394.090 -207.0480 -0.022 0.055 0.047 0.032 0.0114 0.094 0.099 2020 8 3 59064 203.844 393.673 -206.0690 0.012 0.025 0.047 0.032 0.0115 0.096 0.102 2020 8 4 59065 205.001 393.240 -205.2249 0.047 -0.004 0.047 0.032 0.0116 0.097 0.105 2020 8 5 59066 206.132 392.533 -204.4901 0.069 -0.036 0.048 0.033 0.0116 0.099 0.106 2020 8 6 59067 207.133 391.716 -203.8911 0.088 -0.069 0.048 0.033 0.0116 0.100 0.108 2020 8 7 59068 207.977 390.856 -203.4200 0.107 -0.101 0.049 0.033 0.0117 0.101 0.109 2020 8 8 59069 208.836 389.529 -203.0192 0.000 0.000 0.049 0.034 0.0119 0.103 0.113 2020 8 9 59070 209.894 387.987 -202.7300 0.000 0.000 0.050 0.034 0.0121 0.104 0.117 2020 8 10 59071 211.003 386.698 -202.3440 0.000 0.000 0.051 0.035 0.0124 0.106 0.121 2020 8 11 59072 211.988 385.309 -201.8401 0.000 0.000 0.052 0.036 0.0127 0.107 0.124 2020 8 12 59073 213.150 383.953 -201.1899 0.000 0.000 0.053 0.036 0.0130 0.109 0.127 2020 8 13 59074 214.367 382.218 -200.3876 0.000 0.000 0.054 0.037 0.0133 0.110 0.130 2020 8 14 59075 215.233 380.568 -199.5045 0.000 0.000 0.056 0.039 0.0135 0.111 0.132 2020 8 15 59076 215.716 379.043 -198.4787 0.072 -0.070 0.058 0.040 0.0138 0.500 0.500 2020 8 16 59077 216.101 377.951 -197.3047 0.081 -0.067 0.045 0.030 0.0093 0.500 0.500 2020 8 17 59078 216.762 377.104 -196.1840 0.084 -0.061 0.046 0.031 0.0095 0.500 0.500 2020 8 18 59079 217.009 376.517 -195.1581 0.077 -0.055 0.048 0.032 0.0097 0.500 0.500 2020 8 19 59080 217.098 375.799 -194.3003 0.064 -0.051 0.049 0.032 0.0099 0.500 0.500 2020 8 20 59081 216.593 374.954 -193.6757 0.048 -0.049 0.050 0.033 0.0102 0.500 0.500 2020 8 21 59082 216.769 373.584 -193.3433 0.036 -0.050 0.050 0.034 0.0104 0.500 0.500 2020 8 22 59083 216.768 371.922 -193.2276 0.031 -0.052 0.051 0.034 0.0107 0.500 0.500 2020 8 23 59084 217.610 370.128 -193.1626 0.029 -0.051 0.052 0.035 0.0110 0.500 0.500 2020 8 24 59085 218.190 368.757 -193.0350 0.028 -0.045 0.053 0.036 0.0112 0.500 0.500 2020 8 25 59086 218.827 367.354 -192.7101 0.024 -0.034 0.054 0.036 0.0115 0.500 0.500 2020 8 26 59087 218.586 366.137 -192.1023 0.016 -0.020 0.055 0.037 0.0118 0.500 0.500 2020 8 27 59088 218.581 364.929 -191.2044 0.010 -0.009 0.055 0.038 0.0122 0.500 0.500 2020 8 28 59089 218.196 363.840 -190.1078 0.010 -0.004 0.056 0.038 0.0125 0.500 0.500 2020 8 29 59090 218.225 363.169 -188.8845 0.019 -0.008 0.057 0.039 0.0128 0.500 0.500 2020 8 30 59091 217.215 362.327 -187.6101 0.033 -0.018 0.058 0.040 0.0132 0.500 0.500 2020 8 31 59092 216.899 361.561 -186.4009 0.047 -0.031 0.059 0.040 0.0136 0.500 0.500 2020 9 1 59093 215.234 360.352 -185.3551 0.056 -0.039 0.060 0.041 0.0141 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 7 2 59032 -112.006 -9.977 0.186 0.056 2020 7 3 59033 -112.165 -10.078 0.189 0.056 2020 7 4 59034 -111.970 -10.116 0.176 0.053 2020 7 5 59035 -111.636 -10.143 0.173 0.052 2020 7 6 59036 -111.350 -10.239 0.176 0.052 2020 7 7 59037 -111.217 -10.401 0.178 0.053 2020 7 8 59038 -111.407 -10.525 0.178 0.053 2020 7 9 59039 -111.799 -10.547 0.181 0.053 2020 7 10 59040 -112.273 -10.499 0.184 0.054 2020 7 11 59041 -112.643 -10.446 0.184 0.054 2020 7 12 59042 -112.871 -10.400 0.186 0.054 2020 7 13 59043 -113.044 -10.293 0.189 0.054 2020 7 14 59044 -113.305 -10.079 0.191 0.054 2020 7 15 59045 -113.705 -9.852 0.194 0.056 2020 7 16 59046 -114.190 -9.742 0.196 0.058 2020 7 17 59047 -114.559 -9.849 0.189 0.056 2020 7 18 59048 -114.694 -10.117 0.194 0.058 2020 7 19 59049 -114.605 -10.415 0.196 0.059 2020 7 20 59050 -114.428 -10.592 0.199 0.061 2020 7 21 59051 -114.285 -10.578 0.201 0.064 2020 7 22 59052 -114.293 -10.443 0.206 0.066 2020 7 23 59053 -114.374 -10.315 0.204 0.066 2020 7 24 59054 -114.517 -10.288 0.206 0.068 2020 7 25 59055 -114.621 -10.344 0.209 0.071 2020 7 26 59056 -114.751 -10.388 0.211 0.075 2020 7 27 59057 -114.957 -10.348 0.216 0.078 2020 7 28 59058 -115.247 -10.245 0.219 0.083 2020 7 29 59059 -115.795 -10.103 0.224 0.086 2020 7 30 59060 -116.352 -10.000 0.226 0.089 2020 7 31 59061 -116.722 -9.945 0.229 0.093 2020 8 1 59062 -116.637 -10.005 0.234 0.096 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 7 2 59032 -0.7733 0.0124 15.04106731329 0.00000000216 2020 7 3 59033 -0.9919 0.0124 15.04106735135 0.00000000216 2020 7 4 59034 -1.1888 0.0125 15.04106738562 0.00000000218 2020 7 5 59035 -1.3336 0.0125 15.04106741083 0.00000000218 2020 7 6 59036 -1.3264 0.0126 15.04106740958 0.00000000219 2020 7 7 59037 -1.2547 0.0126 15.04106739710 0.00000000219 2020 7 8 59038 -1.1768 0.0127 15.04106738354 0.00000000221 2020 7 9 59039 -1.0791 0.0123 15.04106736653 0.00000000214 2020 7 10 59040 -0.9941 0.0123 15.04106735173 0.00000000214 2020 7 11 59041 -0.9766 0.0124 15.04106734868 0.00000000216 2020 7 12 59042 -1.0200 0.0124 15.04106735624 0.00000000216 2020 7 13 59043 -1.0697 0.0121 15.04106736489 0.00000000211 2020 7 14 59044 -1.1213 0.0121 15.04106737387 0.00000000211 2020 7 15 59045 -1.1788 0.0121 15.04106738388 0.00000000211 2020 7 16 59046 -1.2457 0.0122 15.04106739553 0.00000000212 2020 7 17 59047 -1.3164 0.0122 15.04106740784 0.00000000212 2020 7 18 59048 -1.4070 0.0122 15.04106742361 0.00000000212 2020 7 19 59049 -1.4663 0.0123 15.04106743393 0.00000000214 2020 7 20 59050 -1.4190 0.0119 15.04106742570 0.00000000207 2020 7 21 59051 -1.2724 0.0120 15.04106740018 0.00000000209 2020 7 22 59052 -1.0646 0.0120 15.04106736400 0.00000000209 2020 7 23 59053 -0.8562 0.0120 15.04106732772 0.00000000209 2020 7 24 59054 -0.6416 0.0121 15.04106729036 0.00000000211 2020 7 25 59055 -0.5163 0.0121 15.04106726855 0.00000000211 2020 7 26 59056 -0.4861 0.0122 15.04106726329 0.00000000212 2020 7 27 59057 -0.5593 0.0122 15.04106727604 0.00000000212 2020 7 28 59058 -0.6832 0.0122 15.04106729761 0.00000000212 2020 7 29 59059 -0.8237 0.0123 15.04106732207 0.00000000214 2020 7 30 59060 -0.9575 0.0123 15.04106734536 0.00000000214 2020 7 31 59061 -1.0529 0.0124 15.04106736197 0.00000000216 2020 8 1 59062 -1.0541 0.0124 15.04106736217 0.00000000216 4 - INFORMATION ON TIME SCALES TAI - UTC = 37 s. during period [59032-59062] No leap second introduced during period [59032-59062] 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 83 86 4 - 21 57 5 59032.27 to 59061.27 68 104 16 - 6 5 GSFC gsf2020a.eoxy 51 43 3 10 12 33 11 59032.27 to 59061.27 123 82 16 26 91 59 IAA iaa2007a.eops 29 34 2 - 9 24 6 59032.27 to 59058.21 113 74 18 - 53 18 USNO usn2020b.eoxy 32 32 2 - 12 33 9 59032.27 to 59061.27 98 71 15 - 54 53 IVS * ivs14r1X.eops 17 17 1 - 4 14 4 59037.21 to 59058.20 46 41 9 - 7 4 VLBI Intensive GSI * gsiint2c.eopi - - 11 - - - 9 59034.33 to 59057.31 - - 18 - - - BKG * bkgint14.eopi - - 17 - - - 28 59032.80 to 59061.80 - - 24 - - - GSFC * gsf2020a.eopi - - 15 - - - 32 59032.80 to 59061.80 - - 46 - - - IAA * iaa2019a.eopi - - 17 - - - 32 59032.80 to 59061.80 - - 47 - - - USNO * usnouint.data - - 15 - - - 27 59032.80 to 59061.80 - - 26 - - - GPS CODE COD*ERP_R 6 6 - 0 - - 29 59032.50 to 59061.50 23 26 - 10 - - JPL jpl*.erp 9 9 - 5 - - 30 59032.50 to 59061.50 24 29 - 18 - - GFZ gfz*.erp 4 5 - 1 - - 30 59032.50 to 59061.50 25 33 - 12 - - ESOC esa*.erp 8 9 - 3 - - 30 59032.50 to 59061.50 24 24 - 9 - - SIO sio*.erp siu*.erp 34 32 - 6 - - 29 59032.50 to 59061.50 44 36 - 13 - - EMR emr*.erp 3 3 - 0 - - 30 59032.50 to 59061.50 30 38 - 11 - - IAA gnss.res 0 0 - 0 - - 30 59032.50 to 59061.50 83 52 - 25 - - GRGS grg*.erp 62 62 - 0 - - 30 59032.50 to 59061.50 26 22 - 11 - - ASI asi*.erp 8 8 - 0 - - 30 59032.50 to 59061.50 40 36 - 46 - - MIT mit*.erp 12 12 - 2 - - 30 59032.50 to 59061.50 31 23 - 12 - - IGR * igs96p02.erp 10 10 - 2 - - 30 59032.50 to 59061.50 21 28 - 10 - - IGS * igs00p03.erp 3 3 - 0 - - 30 59032.50 to 59061.50 23 21 - 11 - - SLR MCC tg*.02 163 184 - 28 - - 31 59032.00 to 59062.00 85 109 - 245 - - IAA slr_v.dat 61 74 - 5 - - 30 59032.00 to 59062.00 229 216 - 27 - - ASI slr_oca*.eop 67 76 - 13 - - 27 59032.50 to 59058.50 128 210 - 41 - - ILRS * ilrsa.eop 47 54 - 8 - - 30 59032.50 to 59061.50 122 108 - 19 - - BULLETIN A NEOS mark3.out 23 17 4 - - - 31 59032.00 to 59062.00 43 38 15 - - - To unsubscribe : http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html