********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 5 December 2019 Vol. XXXII No. 049 ______________________________________________________________________ GENERAL INFORMATION: To receive this information electronically, contact: ser7@maia.usno.navy.mil or use MJD = Julian Date - 2 400 000.5 days UT2-UT1 = 0.022 sin(2*pi*T) - 0.012 cos(2*pi*T) - 0.006 sin(4*pi*T) + 0.007 cos(4*pi*T) where pi = 3.14159265... and T is the date in Besselian years. TT = TAI + 32.184 seconds DUT1= (UT1-UTC) transmitted with time signals = -0.2 seconds beginning 02 May 2019 at 0000 UTC Beginning 1 January 2017: TAI-UTC = 37.000 000 seconds *********************************************************************** * * * Notice of Publication Web and FTP Shutdown: * * The US Naval Observatory's Rapid Service/Prediction Center web and * * FTP sites (at maia.usno.navy.mil and toshi.nofs.navy.mil) must * * undergo modernization and have been offline since 24 October 2019. * * The expected completion of work and return of service is estimated * * as 30 April 2020. Please visit https://www.usno.navy.mil and submit * * a Requirements Form to the USNO Public Affairs Official (PAO) if * * the information you are seeking is not accessible via another * * means. If the Requirements Form is not available, please directly * * contact the USNO PAO Geoff Chester at email address * * geoff.chester@navy.mil or phone number 202 762 1438. * * * * This shutdown has lead to the indefinite cessation of IERS * * Bulletin A distribution emails. If this occurs, current * * subscribers to the Bulletin A email distribution list may receive * * future mailings from a different address (if this service is * * restored). In the meantime, we will be unable to process email * * subscription/unsubscription requests. * * * * Currently, updated EOPs may be available at NASA's Archive of * * Space Geodesy Data anonymous FTP server at: * * ftp://cddis.gsfc.nasa.gov/pub/products/iers * * Daily EOP data may be uploaded here by 18:00 UTC, and * * Bulletin A EOP data may be available by 20:00 UTC. * * Users should please verify results obtained from this site; * * we cannot guarantee the integrity or timeliness of files provided * * at this mirror site. * * * * For other download options from CDDIS, such as HTTPS, please refer * * to the https://cddis.nasa.gov/About/CDDIS_File_Download_FAQ.html * * * * Questions and enquiries about EOPs can be emailed to the * * following address: * * usn.ncr.navobsydc.mbx.eopcp@mail.mil * * * * Distribution statement A. * * Approved for public release: distribution unlimited. * * * *********************************************************************** ________________________________________________________________________ The contributed observations used in the preparation of this Bulletin are available at . The contributed analysis results are based on data from Very Long Baseline Interferometry (VLBI), Satellite Laser Ranging (SLR), the Global Positioning System (GPS) satellites, Lunar Laser Ranging (LLR), and meteorological predictions of variations in Atmospheric Angular Momentum (AAM). ________________________________________________________________________ COMBINED EARTH ORIENTATION PARAMETERS: IERS Rapid Service MJD x error y error UT1-UTC error " " " " s s 19 11 29 58816 0.12596 .00009 0.26957 .00009 -0.170022 0.000015 19 11 30 58817 0.12455 .00009 0.26992 .00009 -0.170036 0.000015 19 12 1 58818 0.12298 .00009 0.27039 .00009 -0.170016 0.000013 19 12 2 58819 0.12119 .00009 0.27090 .00009 -0.170070 0.000011 19 12 3 58820 0.11893 .00009 0.27128 .00009 -0.170212 0.000010 19 12 4 58821 0.11625 .00009 0.27138 .00009 -0.170439 0.000009 19 12 5 58822 0.11344 .00009 0.27131 .00009 -0.170727 0.000055 IERS Final Values MJD x y UT1-UTC " " s 19 10 2 58758 0.1976 0.3110 -0.15399 19 10 3 58759 0.1965 0.3100 -0.15391 19 10 4 58760 0.1955 0.3087 -0.15369 19 10 5 58761 0.1946 0.3076 -0.15330 19 10 6 58762 0.1936 0.3061 -0.15283 19 10 7 58763 0.1927 0.3050 -0.15237 19 10 8 58764 0.1916 0.3036 -0.15196 19 10 9 58765 0.1905 0.3019 -0.15165 19 10 10 58766 0.1894 0.3007 -0.15145 19 10 11 58767 0.1886 0.2997 -0.15138 19 10 12 58768 0.1879 0.2994 -0.15146 19 10 13 58769 0.1862 0.2993 -0.15165 19 10 14 58770 0.1844 0.2985 -0.15191 19 10 15 58771 0.1827 0.2978 -0.15223 19 10 16 58772 0.1815 0.2972 -0.15256 19 10 17 58773 0.1800 0.2967 -0.15288 19 10 18 58774 0.1783 0.2956 -0.15313 19 10 19 58775 0.1768 0.2945 -0.15333 19 10 20 58776 0.1752 0.2935 -0.15343 19 10 21 58777 0.1736 0.2924 -0.15351 19 10 22 58778 0.1724 0.2913 -0.15361 19 10 23 58779 0.1714 0.2904 -0.15382 19 10 24 58780 0.1701 0.2900 -0.15424 19 10 25 58781 0.1688 0.2891 -0.15491 19 10 26 58782 0.1678 0.2878 -0.15580 19 10 27 58783 0.1673 0.2865 -0.15681 19 10 28 58784 0.1671 0.2855 -0.15774 19 10 29 58785 0.1669 0.2843 -0.15846 19 10 30 58786 0.1670 0.2831 -0.15892 19 10 31 58787 0.1666 0.2821 -0.15915 19 11 1 58788 0.1660 0.2811 -0.15920 _______________________________________________________________________ PREDICTIONS: The following formulas will not reproduce the predictions given below, but may be used to extend the predictions beyond the end of this table. x = 0.1282 - 0.0014 cos A - 0.1153 sin A - 0.0115 cos C + 0.0250 sin C y = 0.3525 - 0.1039 cos A + 0.0027 sin A + 0.0250 cos C + 0.0115 sin C UT1-UTC = -0.1561 - 0.00039 (MJD - 58830) - (UT2-UT1) where A = 2*pi*(MJD-58822)/365.25 and C = 2*pi*(MJD-58822)/435. TAI-UTC(MJD 58823) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58822)**0.80 S t = 0.00025 (MJD-58822)**0.75 Estimated accuracies are: Predictions 10 d 20 d 30 d 40 d Polar coord's 0.004 0.007 0.010 0.013 UT1-UTC 0.0014 0.0024 0.0032 0.0040 MJD x(arcsec) y(arcsec) UT1-UTC(sec) 2019 12 6 58823 0.1110 0.2711 -0.17107 2019 12 7 58824 0.1087 0.2710 -0.17146 2019 12 8 58825 0.1068 0.2710 -0.17186 2019 12 9 58826 0.1050 0.2711 -0.17221 2019 12 10 58827 0.1033 0.2714 -0.17245 2019 12 11 58828 0.1016 0.2718 -0.17256 2019 12 12 58829 0.0998 0.2722 -0.17252 2019 12 13 58830 0.0980 0.2726 -0.17237 2019 12 14 58831 0.0963 0.2730 -0.17216 2019 12 15 58832 0.0946 0.2734 -0.17198 2019 12 16 58833 0.0930 0.2738 -0.17193 2019 12 17 58834 0.0914 0.2743 -0.17207 2019 12 18 58835 0.0899 0.2748 -0.17242 2019 12 19 58836 0.0884 0.2753 -0.17298 2019 12 20 58837 0.0869 0.2760 -0.17366 2019 12 21 58838 0.0853 0.2767 -0.17437 2019 12 22 58839 0.0838 0.2774 -0.17498 2019 12 23 58840 0.0823 0.2781 -0.17543 2019 12 24 58841 0.0808 0.2788 -0.17567 2019 12 25 58842 0.0794 0.2795 -0.17570 2019 12 26 58843 0.0780 0.2803 -0.17555 2019 12 27 58844 0.0766 0.2811 -0.17531 2019 12 28 58845 0.0752 0.2820 -0.17505 2019 12 29 58846 0.0738 0.2829 -0.17484 2019 12 30 58847 0.0724 0.2838 -0.17471 2019 12 31 58848 0.0711 0.2847 -0.17470 2020 1 1 58849 0.0697 0.2856 -0.17478 2020 1 2 58850 0.0684 0.2866 -0.17494 2020 1 3 58851 0.0671 0.2875 -0.17517 2020 1 4 58852 0.0659 0.2885 -0.17540 2020 1 5 58853 0.0646 0.2895 -0.17561 2020 1 6 58854 0.0634 0.2906 -0.17575 2020 1 7 58855 0.0621 0.2917 -0.17579 2020 1 8 58856 0.0609 0.2928 -0.17572 2020 1 9 58857 0.0597 0.2939 -0.17555 2020 1 10 58858 0.0585 0.2950 -0.17530 2020 1 11 58859 0.0573 0.2962 -0.17506 2020 1 12 58860 0.0562 0.2974 -0.17491 2020 1 13 58861 0.0551 0.2986 -0.17492 2020 1 14 58862 0.0539 0.2998 -0.17513 2020 1 15 58863 0.0529 0.3010 -0.17551 2020 1 16 58864 0.0518 0.3023 -0.17602 2020 1 17 58865 0.0507 0.3035 -0.17655 2020 1 18 58866 0.0497 0.3048 -0.17700 2020 1 19 58867 0.0487 0.3061 -0.17729 2020 1 20 58868 0.0477 0.3074 -0.17739 2020 1 21 58869 0.0468 0.3088 -0.17729 2020 1 22 58870 0.0458 0.3101 -0.17702 2020 1 23 58871 0.0449 0.3115 -0.17665 2020 1 24 58872 0.0441 0.3129 -0.17623 2020 1 25 58873 0.0432 0.3143 -0.17584 2020 1 26 58874 0.0424 0.3157 -0.17552 2020 1 27 58875 0.0416 0.3171 -0.17532 2020 1 28 58876 0.0408 0.3185 -0.17524 2020 1 29 58877 0.0400 0.3200 -0.17528 2020 1 30 58878 0.0393 0.3214 -0.17541 2020 1 31 58879 0.0386 0.3229 -0.17560 2020 2 1 58880 0.0379 0.3244 -0.17581 2020 2 2 58881 0.0373 0.3259 -0.17599 2020 2 3 58882 0.0367 0.3274 -0.17612 2020 2 4 58883 0.0361 0.3289 -0.17616 2020 2 5 58884 0.0355 0.3304 -0.17612 2020 2 6 58885 0.0350 0.3320 -0.17601 2020 2 7 58886 0.0345 0.3335 -0.17591 2020 2 8 58887 0.0340 0.3351 -0.17589 2020 2 9 58888 0.0336 0.3366 -0.17604 2020 2 10 58889 0.0332 0.3382 -0.17644 2020 2 11 58890 0.0328 0.3398 -0.17710 2020 2 12 58891 0.0324 0.3414 -0.17796 2020 2 13 58892 0.0321 0.3430 -0.17890 2020 2 14 58893 0.0318 0.3446 -0.17982 2020 2 15 58894 0.0315 0.3462 -0.18059 2020 2 16 58895 0.0313 0.3478 -0.18117 2020 2 17 58896 0.0311 0.3494 -0.18155 2020 2 18 58897 0.0309 0.3510 -0.18175 2020 2 19 58898 0.0308 0.3526 -0.18185 2020 2 20 58899 0.0306 0.3542 -0.18190 2020 2 21 58900 0.0306 0.3558 -0.18198 2020 2 22 58901 0.0305 0.3575 -0.18214 2020 2 23 58902 0.0305 0.3591 -0.18241 2020 2 24 58903 0.0305 0.3607 -0.18280 2020 2 25 58904 0.0305 0.3623 -0.18332 2020 2 26 58905 0.0306 0.3640 -0.18394 2020 2 27 58906 0.0307 0.3656 -0.18462 2020 2 28 58907 0.0308 0.3672 -0.18531 2020 2 29 58908 0.0310 0.3689 -0.18597 2020 3 1 58909 0.0312 0.3705 -0.18657 2020 3 2 58910 0.0314 0.3721 -0.18708 2020 3 3 58911 0.0317 0.3737 -0.18750 2020 3 4 58912 0.0319 0.3753 -0.18784 2020 3 5 58913 0.0322 0.3769 -0.18815 2020 3 6 58914 0.0326 0.3785 -0.18851 2020 3 7 58915 0.0330 0.3801 -0.18901 2020 3 8 58916 0.0334 0.3817 -0.18974 2020 3 9 58917 0.0338 0.3833 -0.19076 2020 3 10 58918 0.0343 0.3849 -0.19204 2020 3 11 58919 0.0348 0.3865 -0.19350 2020 3 12 58920 0.0353 0.3881 -0.19498 2020 3 13 58921 0.0358 0.3896 -0.19635 2020 3 14 58922 0.0364 0.3912 -0.19751 2020 3 15 58923 0.0370 0.3927 -0.19843 2020 3 16 58924 0.0377 0.3943 -0.19913 2020 3 17 58925 0.0384 0.3958 -0.19968 2020 3 18 58926 0.0391 0.3973 -0.20015 2020 3 19 58927 0.0398 0.3988 -0.20063 2020 3 20 58928 0.0405 0.4003 -0.20116 2020 3 21 58929 0.0413 0.4018 -0.20179 2020 3 22 58930 0.0422 0.4032 -0.20255 2020 3 23 58931 0.0430 0.4047 -0.20328 2020 3 24 58932 0.0439 0.4061 -0.20412 2020 3 25 58933 0.0448 0.4076 -0.20502 2020 3 26 58934 0.0457 0.4090 -0.20594 2020 3 27 58935 0.0466 0.4104 -0.20683 2020 3 28 58936 0.0476 0.4118 -0.20764 2020 3 29 58937 0.0486 0.4132 -0.20836 2020 3 30 58938 0.0497 0.4145 -0.20895 2020 3 31 58939 0.0507 0.4158 -0.20945 2020 4 1 58940 0.0518 0.4172 -0.20989 2020 4 2 58941 0.0529 0.4185 -0.21031 2020 4 3 58942 0.0541 0.4198 -0.21083 2020 4 4 58943 0.0552 0.4210 -0.21151 2020 4 5 58944 0.0564 0.4223 -0.21246 2020 4 6 58945 0.0576 0.4235 -0.21367 2020 4 7 58946 0.0589 0.4247 -0.21511 2020 4 8 58947 0.0601 0.4259 -0.21666 2020 4 9 58948 0.0614 0.4271 -0.21816 2020 4 10 58949 0.0627 0.4283 -0.21948 2020 4 11 58950 0.0640 0.4294 -0.22054 2020 4 12 58951 0.0654 0.4305 -0.22133 2020 4 13 58952 0.0667 0.4316 -0.22191 2020 4 14 58953 0.0681 0.4327 -0.22236 2020 4 15 58954 0.0695 0.4338 -0.22276 2020 4 16 58955 0.0710 0.4348 -0.22319 2020 4 17 58956 0.0724 0.4358 -0.22369 2020 4 18 58957 0.0739 0.4368 -0.22429 2020 4 19 58958 0.0754 0.4377 -0.22499 2020 4 20 58959 0.0769 0.4387 -0.22578 2020 4 21 58960 0.0784 0.4396 -0.22663 2020 4 22 58961 0.0800 0.4405 -0.22750 2020 4 23 58962 0.0815 0.4413 -0.22833 2020 4 24 58963 0.0831 0.4422 -0.22908 2020 4 25 58964 0.0847 0.4430 -0.22972 2020 4 26 58965 0.0863 0.4438 -0.23022 2020 4 27 58966 0.0880 0.4446 -0.23059 2020 4 28 58967 0.0896 0.4453 -0.23086 2020 4 29 58968 0.0913 0.4460 -0.23109 2020 4 30 58969 0.0929 0.4467 -0.23136 2020 5 1 58970 0.0946 0.4474 -0.23174 2020 5 2 58971 0.0963 0.4480 -0.23232 2020 5 3 58972 0.0980 0.4486 -0.23314 2020 5 4 58973 0.0998 0.4492 -0.23421 2020 5 5 58974 0.1015 0.4498 -0.23543 2020 5 6 58975 0.1033 0.4503 -0.23668 2020 5 7 58976 0.1050 0.4508 -0.23781 2020 5 8 58977 0.1068 0.4512 -0.23872 2020 5 9 58978 0.1086 0.4517 -0.23935 2020 5 10 58979 0.1104 0.4521 -0.23973 2020 5 11 58980 0.1122 0.4525 -0.23993 2020 5 12 58981 0.1140 0.4529 -0.24004 2020 5 13 58982 0.1158 0.4532 -0.24014 2020 5 14 58983 0.1176 0.4535 -0.24029 2020 5 15 58984 0.1194 0.4538 -0.24053 2020 5 16 58985 0.1213 0.4540 -0.24086 2020 5 17 58986 0.1231 0.4542 -0.24127 2020 5 18 58987 0.1250 0.4544 -0.24173 2020 5 19 58988 0.1268 0.4546 -0.24222 2020 5 20 58989 0.1287 0.4547 -0.24267 2020 5 21 58990 0.1305 0.4548 -0.24305 2020 5 22 58991 0.1324 0.4548 -0.24332 2020 5 23 58992 0.1343 0.4549 -0.24345 2020 5 24 58993 0.1361 0.4549 -0.24343 2020 5 25 58994 0.1380 0.4549 -0.24329 2020 5 26 58995 0.1399 0.4548 -0.24308 2020 5 27 58996 0.1417 0.4547 -0.24287 2020 5 28 58997 0.1436 0.4546 -0.24275 2020 5 29 58998 0.1455 0.4545 -0.24278 2020 5 30 58999 0.1473 0.4543 -0.24301 2020 5 31 59000 0.1492 0.4541 -0.24345 2020 6 1 59001 0.1510 0.4539 -0.24406 2020 6 2 59002 0.1529 0.4536 -0.24473 2020 6 3 59003 0.1548 0.4534 -0.24534 2020 6 4 59004 0.1566 0.4530 -0.24577 2020 6 5 59005 0.1585 0.4527 -0.24595 2020 6 6 59006 0.1603 0.4523 -0.24586 2020 6 7 59007 0.1621 0.4519 -0.24555 2020 6 8 59008 0.1640 0.4515 -0.24511 2020 6 9 59009 0.1658 0.4510 -0.24463 2020 6 10 59010 0.1676 0.4505 -0.24417 2020 6 11 59011 0.1694 0.4500 -0.24381 2020 6 12 59012 0.1712 0.4495 -0.24354 2020 6 13 59013 0.1730 0.4489 -0.24339 2020 6 14 59014 0.1748 0.4483 -0.24334 2020 6 15 59015 0.1765 0.4476 -0.24334 2020 6 16 59016 0.1783 0.4470 -0.24337 2020 6 17 59017 0.1800 0.4463 -0.24337 2020 6 18 59018 0.1818 0.4456 -0.24332 2020 6 19 59019 0.1835 0.4448 -0.24318 2020 6 20 59020 0.1852 0.4441 -0.24293 2020 6 21 59021 0.1869 0.4433 -0.24258 2020 6 22 59022 0.1886 0.4424 -0.24216 2020 6 23 59023 0.1902 0.4416 -0.24174 2020 6 24 59024 0.1919 0.4407 -0.24139 2020 6 25 59025 0.1935 0.4398 -0.24119 2020 6 26 59026 0.1951 0.4389 -0.24118 2020 6 27 59027 0.1968 0.4379 -0.24137 2020 6 28 59028 0.1983 0.4369 -0.24172 2020 6 29 59029 0.1999 0.4359 -0.24216 2020 6 30 59030 0.2015 0.4349 -0.24258 2020 7 1 59031 0.2030 0.4338 -0.24287 2020 7 2 59032 0.2045 0.4327 -0.24295 2020 7 3 59033 0.2060 0.4316 -0.24282 2020 7 4 59034 0.2075 0.4305 -0.24248 2020 7 5 59035 0.2089 0.4294 -0.24201 2020 7 6 59036 0.2104 0.4282 -0.24148 2020 7 7 59037 0.2118 0.4270 -0.24096 2020 7 8 59038 0.2132 0.4258 -0.24053 2020 7 9 59039 0.2146 0.4245 -0.24021 2020 7 10 59040 0.2159 0.4232 -0.24003 2020 7 11 59041 0.2172 0.4220 -0.23994 2020 7 12 59042 0.2185 0.4206 -0.23989 2020 7 13 59043 0.2198 0.4193 -0.23981 2020 7 14 59044 0.2211 0.4180 -0.23965 2020 7 15 59045 0.2223 0.4166 -0.23939 2020 7 16 59046 0.2235 0.4152 -0.23902 2020 7 17 59047 0.2247 0.4138 -0.23854 2020 7 18 59048 0.2259 0.4124 -0.23797 2020 7 19 59049 0.2270 0.4109 -0.23732 2020 7 20 59050 0.2281 0.4095 -0.23660 2020 7 21 59051 0.2292 0.4080 -0.23592 2020 7 22 59052 0.2302 0.4065 -0.23537 2020 7 23 59053 0.2313 0.4050 -0.23499 2020 7 24 59054 0.2323 0.4034 -0.23487 2020 7 25 59055 0.2332 0.4019 -0.23499 2020 7 26 59056 0.2342 0.4003 -0.23528 2020 7 27 59057 0.2351 0.3987 -0.23553 2020 7 28 59058 0.2360 0.3971 -0.23562 2020 7 29 59059 0.2368 0.3955 -0.23551 2020 7 30 59060 0.2376 0.3939 -0.23522 2020 7 31 59061 0.2384 0.3923 -0.23474 2020 8 1 59062 0.2392 0.3906 -0.23407 2020 8 2 59063 0.2399 0.3890 -0.23331 2020 8 3 59064 0.2407 0.3873 -0.23251 2020 8 4 59065 0.2413 0.3856 -0.23176 2020 8 5 59066 0.2420 0.3839 -0.23114 2020 8 6 59067 0.2426 0.3822 -0.23067 2020 8 7 59068 0.2432 0.3805 -0.23031 2020 8 8 59069 0.2437 0.3788 -0.23002 2020 8 9 59070 0.2442 0.3771 -0.22982 2020 8 10 59071 0.2447 0.3753 -0.22962 2020 8 11 59072 0.2452 0.3736 -0.22937 2020 8 12 59073 0.2456 0.3718 -0.22903 2020 8 13 59074 0.2460 0.3701 -0.22862 2020 8 14 59075 0.2464 0.3683 -0.22815 2020 8 15 59076 0.2467 0.3665 -0.22757 2020 8 16 59077 0.2470 0.3647 -0.22704 2020 8 17 59078 0.2472 0.3629 -0.22660 2020 8 18 59079 0.2475 0.3612 -0.22632 2020 8 19 59080 0.2477 0.3594 -0.22625 2020 8 20 59081 0.2478 0.3576 -0.22643 2020 8 21 59082 0.2480 0.3558 -0.22683 2020 8 22 59083 0.2481 0.3540 -0.22744 2020 8 23 59084 0.2481 0.3522 -0.22811 2020 8 24 59085 0.2482 0.3504 -0.22865 2020 8 25 59086 0.2482 0.3486 -0.22902 2020 8 26 59087 0.2481 0.3468 -0.22916 2020 8 27 59088 0.2480 0.3450 -0.22910 2020 8 28 59089 0.2479 0.3432 -0.22887 2020 8 29 59090 0.2478 0.3414 -0.22856 2020 8 30 59091 0.2476 0.3396 -0.22827 2020 8 31 59092 0.2474 0.3378 -0.22803 2020 9 1 59093 0.2472 0.3360 -0.22792 2020 9 2 59094 0.2469 0.3342 -0.22797 2020 9 3 59095 0.2466 0.3324 -0.22815 2020 9 4 59096 0.2463 0.3306 -0.22842 2020 9 5 59097 0.2459 0.3289 -0.22874 2020 9 6 59098 0.2455 0.3271 -0.22903 2020 9 7 59099 0.2451 0.3253 -0.22927 2020 9 8 59100 0.2446 0.3236 -0.22946 2020 9 9 59101 0.2441 0.3218 -0.22954 2020 9 10 59102 0.2436 0.3201 -0.22953 2020 9 11 59103 0.2430 0.3184 -0.22944 2020 9 12 59104 0.2424 0.3166 -0.22926 2020 9 13 59105 0.2418 0.3149 -0.22907 2020 9 14 59106 0.2411 0.3132 -0.22901 2020 9 15 59107 0.2404 0.3115 -0.22917 2020 9 16 59108 0.2397 0.3099 -0.22960 2020 9 17 59109 0.2389 0.3082 -0.23029 2020 9 18 59110 0.2382 0.3065 -0.23119 2020 9 19 59111 0.2373 0.3049 -0.23224 2020 9 20 59112 0.2365 0.3033 -0.23324 2020 9 21 59113 0.2356 0.3016 -0.23408 2020 9 22 59114 0.2347 0.3000 -0.23469 2020 9 23 59115 0.2337 0.2984 -0.23506 2020 9 24 59116 0.2328 0.2969 -0.23528 2020 9 25 59117 0.2318 0.2953 -0.23537 2020 9 26 59118 0.2307 0.2938 -0.23545 2020 9 27 59119 0.2297 0.2922 -0.23563 2020 9 28 59120 0.2286 0.2907 -0.23593 2020 9 29 59121 0.2275 0.2892 -0.23641 2020 9 30 59122 0.2263 0.2878 -0.23703 2020 10 1 59123 0.2252 0.2863 -0.23781 2020 10 2 59124 0.2240 0.2849 -0.23867 2020 10 3 59125 0.2227 0.2835 -0.23958 2020 10 4 59126 0.2215 0.2821 -0.24049 2020 10 5 59127 0.2202 0.2807 -0.24138 2020 10 6 59128 0.2189 0.2793 -0.24220 2020 10 7 59129 0.2175 0.2780 -0.24291 2020 10 8 59130 0.2162 0.2767 -0.24357 2020 10 9 59131 0.2148 0.2754 -0.24421 2020 10 10 59132 0.2134 0.2741 -0.24483 2020 10 11 59133 0.2120 0.2729 -0.24552 2020 10 12 59134 0.2105 0.2716 -0.24635 2020 10 13 59135 0.2090 0.2704 -0.24736 2020 10 14 59136 0.2075 0.2692 -0.24868 2020 10 15 59137 0.2060 0.2681 -0.25027 2020 10 16 59138 0.2044 0.2670 -0.25204 2020 10 17 59139 0.2029 0.2658 -0.25387 2020 10 18 59140 0.2013 0.2648 -0.25561 2020 10 19 59141 0.1997 0.2637 -0.25711 2020 10 20 59142 0.1980 0.2627 -0.25834 2020 10 21 59143 0.1964 0.2617 -0.25926 2020 10 22 59144 0.1947 0.2607 -0.25997 2020 10 23 59145 0.1930 0.2597 -0.26066 2020 10 24 59146 0.1913 0.2588 -0.26139 2020 10 25 59147 0.1896 0.2579 -0.26226 2020 10 26 59148 0.1878 0.2571 -0.26328 2020 10 27 59149 0.1861 0.2562 -0.26443 2020 10 28 59150 0.1843 0.2554 -0.26573 2020 10 29 59151 0.1825 0.2546 -0.26707 2020 10 30 59152 0.1807 0.2539 -0.26838 2020 10 31 59153 0.1788 0.2531 -0.26966 2020 11 1 59154 0.1770 0.2524 -0.27083 2020 11 2 59155 0.1751 0.2518 -0.27185 2020 11 3 59156 0.1733 0.2511 -0.27277 2020 11 4 59157 0.1714 0.2505 -0.27357 2020 11 5 59158 0.1695 0.2499 -0.27424 2020 11 6 59159 0.1676 0.2494 -0.27484 2020 11 7 59160 0.1657 0.2489 -0.27542 2020 11 8 59161 0.1637 0.2484 -0.27608 2020 11 9 59162 0.1618 0.2479 -0.27689 2020 11 10 59163 0.1598 0.2475 -0.27790 2020 11 11 59164 0.1579 0.2471 -0.27913 2020 11 12 59165 0.1559 0.2467 -0.28058 2020 11 13 59166 0.1539 0.2464 -0.28215 2020 11 14 59167 0.1520 0.2461 -0.28367 2020 11 15 59168 0.1500 0.2458 -0.28508 2020 11 16 59169 0.1480 0.2456 -0.28624 2020 11 17 59170 0.1460 0.2454 -0.28717 2020 11 18 59171 0.1440 0.2452 -0.28791 2020 11 19 59172 0.1419 0.2451 -0.28858 2020 11 20 59173 0.1399 0.2450 -0.28925 2020 11 21 59174 0.1379 0.2449 -0.28994 2020 11 22 59175 0.1359 0.2449 -0.29079 2020 11 23 59176 0.1339 0.2449 -0.29176 2020 11 24 59177 0.1318 0.2449 -0.29275 2020 11 25 59178 0.1298 0.2449 -0.29373 2020 11 26 59179 0.1278 0.2450 -0.29472 2020 11 27 59180 0.1258 0.2451 -0.29566 2020 11 28 59181 0.1237 0.2453 -0.29647 2020 11 29 59182 0.1217 0.2455 -0.29713 2020 11 30 59183 0.1197 0.2457 -0.29765 2020 12 1 59184 0.1177 0.2459 -0.29804 2020 12 2 59185 0.1157 0.2462 -0.29829 2020 12 3 59186 0.1136 0.2465 -0.29844 2020 12 4 59187 0.1116 0.2469 -0.29859 These predictions are based on all announced leap seconds. CELESTIAL POLE OFFSET SERIES: NEOS Celestial Pole Offset Series MJD dpsi error deps error (msec. of arc) 58800 -112.49 0.09 -7.30 0.27 58801 -112.47 0.09 -7.46 0.27 58802 -112.31 0.09 -7.58 0.27 58803 -112.11 0.08 -7.61 0.27 58804 -111.99 0.10 -7.58 0.22 58805 -111.86 0.10 -7.55 0.22 58806 -111.59 0.12 -7.51 0.14 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 58758 -116.8 -9.8 58759 -116.8 -9.8 58760 -116.6 -10.0 58761 -116.4 -10.3 58762 -116.3 -10.5 58763 -116.4 -10.4 58764 -116.3 -10.2 58765 -116.1 -10.0 58766 -115.7 -9.8 58767 -115.4 -9.6 58768 -115.2 -9.3 58769 -114.9 -9.1 58770 -114.7 -9.1 58771 -114.5 -9.1 58772 -114.5 -9.1 58773 -114.5 -9.2 58774 -114.6 -9.2 58775 -114.7 -9.3 58776 -114.8 -9.4 58777 -114.7 -9.4 58778 -114.4 -9.3 58779 -113.9 -9.0 58780 -113.5 -8.6 58781 -113.4 -8.1 58782 -113.7 -7.9 58783 -114.1 -8.0 58784 -114.2 -8.4 58785 -114.2 -8.7 58786 -114.0 -8.6 58787 -113.8 -8.4 58788 -113.6 -8.4 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58800 0.092 0.034 0.221 0.267 58801 0.080 0.034 0.231 0.267 58802 0.072 0.034 0.233 0.267 58803 0.066 0.034 0.224 0.270 58804 0.063 0.039 0.204 0.218 58805 0.062 0.039 0.178 0.218 58806 0.061 0.048 0.148 0.138 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 58758 -0.06 0.10 58759 -0.08 0.09 58760 -0.08 0.07 58761 -0.08 0.05 58762 -0.08 0.03 58763 -0.08 0.01 58764 -0.08 -0.01 58765 -0.08 -0.03 58766 -0.06 0.03 58767 -0.04 0.10 58768 -0.00 0.12 58769 0.04 0.11 58770 0.08 0.10 58771 0.12 0.09 58772 0.12 0.10 58773 0.11 0.13 58774 0.10 0.15 58775 0.09 0.13 58776 0.07 0.10 58777 0.06 0.06 58778 0.05 0.03 58779 0.06 0.07 58780 0.08 0.12 58781 0.10 0.19 58782 0.10 0.18 58783 0.08 0.16 58784 0.06 0.13 58785 0.04 0.10 58786 0.03 0.14 58787 0.02 0.19 58788 0.04 0.21 The recommended software to predict celestial pole offsets can be found at and software for the calculation of the dX and dY components with respect to IAU2000A Nutation/Precession Theory can be found at the web site in Chapter 5 Section 5.5 of the IERS Conventions (2010).