********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 12 December 2019 Vol. XXXII No. 050 ______________________________________________________________________ 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 12 6 58823 0.11123 .00009 0.27114 .00009 -0.171016 0.000005 19 12 7 58824 0.10942 .00009 0.27104 .00009 -0.171417 0.000007 19 12 8 58825 0.10792 .00009 0.27096 .00009 -0.171863 0.000006 19 12 9 58826 0.10675 .00009 0.27091 .00009 -0.172269 0.000008 19 12 10 58827 0.10590 .00009 0.27094 .00009 -0.172525 0.000007 19 12 11 58828 0.10529 .00009 0.27105 .00009 -0.172615 0.000006 19 12 12 58829 0.10488 .00009 0.27129 .00009 -0.172595 0.000007 _______________________________________________________________________ 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 = 0.1307 - 0.0159 cos A - 0.1137 sin A - 0.0077 cos C + 0.0260 sin C y = 0.3499 - 0.1023 cos A + 0.0163 sin A + 0.0260 cos C + 0.0077 sin C UT1-UTC = -0.1572 - 0.00037 (MJD - 58837) - (UT2-UT1) where A = 2*pi*(MJD-58829)/365.25 and C = 2*pi*(MJD-58829)/435. TAI-UTC(MJD 58830) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58829)**0.80 S t = 0.00025 (MJD-58829)**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 13 58830 0.1042 0.2718 -0.17250 2019 12 14 58831 0.1034 0.2724 -0.17237 2019 12 15 58832 0.1024 0.2730 -0.17226 2019 12 16 58833 0.1011 0.2736 -0.17223 2019 12 17 58834 0.0998 0.2742 -0.17235 2019 12 18 58835 0.0984 0.2747 -0.17269 2019 12 19 58836 0.0971 0.2752 -0.17323 2019 12 20 58837 0.0957 0.2758 -0.17390 2019 12 21 58838 0.0944 0.2764 -0.17459 2019 12 22 58839 0.0931 0.2771 -0.17518 2019 12 23 58840 0.0917 0.2778 -0.17561 2019 12 24 58841 0.0903 0.2785 -0.17584 2019 12 25 58842 0.0888 0.2793 -0.17584 2019 12 26 58843 0.0874 0.2800 -0.17568 2019 12 27 58844 0.0859 0.2807 -0.17544 2019 12 28 58845 0.0845 0.2814 -0.17516 2019 12 29 58846 0.0831 0.2821 -0.17494 2019 12 30 58847 0.0817 0.2828 -0.17480 2019 12 31 58848 0.0803 0.2836 -0.17477 2020 1 1 58849 0.0790 0.2844 -0.17485 2020 1 2 58850 0.0776 0.2852 -0.17500 2020 1 3 58851 0.0763 0.2860 -0.17521 2020 1 4 58852 0.0750 0.2869 -0.17545 2020 1 5 58853 0.0736 0.2878 -0.17566 2020 1 6 58854 0.0723 0.2887 -0.17582 2020 1 7 58855 0.0710 0.2896 -0.17590 2020 1 8 58856 0.0698 0.2905 -0.17589 2020 1 9 58857 0.0685 0.2915 -0.17578 2020 1 10 58858 0.0673 0.2924 -0.17560 2020 1 11 58859 0.0661 0.2934 -0.17543 2020 1 12 58860 0.0649 0.2945 -0.17534 2020 1 13 58861 0.0637 0.2955 -0.17542 2020 1 14 58862 0.0626 0.2966 -0.17571 2020 1 15 58863 0.0614 0.2977 -0.17617 2020 1 16 58864 0.0603 0.2987 -0.17676 2020 1 17 58865 0.0592 0.2999 -0.17738 2020 1 18 58866 0.0581 0.3010 -0.17792 2020 1 19 58867 0.0571 0.3022 -0.17832 2020 1 20 58868 0.0561 0.3033 -0.17852 2020 1 21 58869 0.0550 0.3045 -0.17853 2020 1 22 58870 0.0541 0.3057 -0.17838 2020 1 23 58871 0.0531 0.3069 -0.17811 2020 1 24 58872 0.0521 0.3082 -0.17780 2020 1 25 58873 0.0512 0.3094 -0.17750 2020 1 26 58874 0.0503 0.3107 -0.17726 2020 1 27 58875 0.0494 0.3120 -0.17711 2020 1 28 58876 0.0486 0.3133 -0.17707 2020 1 29 58877 0.0478 0.3146 -0.17712 2020 1 30 58878 0.0470 0.3159 -0.17725 2020 1 31 58879 0.0462 0.3173 -0.17742 2020 2 1 58880 0.0454 0.3186 -0.17760 2020 2 2 58881 0.0447 0.3200 -0.17772 2020 2 3 58882 0.0440 0.3214 -0.17778 2020 2 4 58883 0.0434 0.3228 -0.17773 2020 2 5 58884 0.0427 0.3242 -0.17759 2020 2 6 58885 0.0421 0.3256 -0.17738 2020 2 7 58886 0.0415 0.3270 -0.17716 2020 2 8 58887 0.0409 0.3285 -0.17702 2020 2 9 58888 0.0404 0.3299 -0.17706 2020 2 10 58889 0.0399 0.3314 -0.17735 2020 2 11 58890 0.0394 0.3329 -0.17790 2020 2 12 58891 0.0389 0.3343 -0.17865 2020 2 13 58892 0.0385 0.3358 -0.17950 2020 2 14 58893 0.0381 0.3373 -0.18032 2020 2 15 58894 0.0378 0.3388 -0.18100 2020 2 16 58895 0.0374 0.3403 -0.18148 2020 2 17 58896 0.0371 0.3418 -0.18175 2020 2 18 58897 0.0368 0.3433 -0.18186 2020 2 19 58898 0.0366 0.3449 -0.18185 2020 2 20 58899 0.0363 0.3464 -0.18180 2020 2 21 58900 0.0361 0.3479 -0.18178 2020 2 22 58901 0.0360 0.3495 -0.18185 2020 2 23 58902 0.0358 0.3510 -0.18202 2020 2 24 58903 0.0357 0.3525 -0.18233 2020 2 25 58904 0.0356 0.3541 -0.18277 2020 2 26 58905 0.0356 0.3556 -0.18331 2020 2 27 58906 0.0356 0.3572 -0.18391 2020 2 28 58907 0.0356 0.3587 -0.18454 2020 2 29 58908 0.0356 0.3603 -0.18514 2020 3 1 58909 0.0357 0.3618 -0.18568 2020 3 2 58910 0.0358 0.3634 -0.18614 2020 3 3 58911 0.0359 0.3650 -0.18651 2020 3 4 58912 0.0361 0.3665 -0.18680 2020 3 5 58913 0.0362 0.3681 -0.18705 2020 3 6 58914 0.0365 0.3696 -0.18735 2020 3 7 58915 0.0367 0.3711 -0.18779 2020 3 8 58916 0.0370 0.3727 -0.18846 2020 3 9 58917 0.0373 0.3742 -0.18940 2020 3 10 58918 0.0376 0.3758 -0.19061 2020 3 11 58919 0.0380 0.3773 -0.19198 2020 3 12 58920 0.0384 0.3788 -0.19337 2020 3 13 58921 0.0388 0.3803 -0.19465 2020 3 14 58922 0.0392 0.3818 -0.19571 2020 3 15 58923 0.0397 0.3833 -0.19653 2020 3 16 58924 0.0402 0.3848 -0.19714 2020 3 17 58925 0.0407 0.3863 -0.19759 2020 3 18 58926 0.0413 0.3878 -0.19797 2020 3 19 58927 0.0419 0.3893 -0.19835 2020 3 20 58928 0.0425 0.3908 -0.19880 2020 3 21 58929 0.0432 0.3922 -0.19935 2020 3 22 58930 0.0438 0.3937 -0.20002 2020 3 23 58931 0.0446 0.3951 -0.20081 2020 3 24 58932 0.0453 0.3965 -0.20171 2020 3 25 58933 0.0460 0.3980 -0.20268 2020 3 26 58934 0.0468 0.3994 -0.20366 2020 3 27 58935 0.0476 0.4007 -0.20462 2020 3 28 58936 0.0485 0.4021 -0.20551 2020 3 29 58937 0.0493 0.4035 -0.20630 2020 3 30 58938 0.0502 0.4049 -0.20686 2020 3 31 58939 0.0511 0.4062 -0.20731 2020 4 1 58940 0.0521 0.4075 -0.20771 2020 4 2 58941 0.0531 0.4088 -0.20809 2020 4 3 58942 0.0540 0.4101 -0.20857 2020 4 4 58943 0.0551 0.4114 -0.20921 2020 4 5 58944 0.0561 0.4127 -0.21012 2020 4 6 58945 0.0572 0.4139 -0.21129 2020 4 7 58946 0.0583 0.4152 -0.21270 2020 4 8 58947 0.0594 0.4164 -0.21421 2020 4 9 58948 0.0605 0.4176 -0.21567 2020 4 10 58949 0.0617 0.4188 -0.21696 2020 4 11 58950 0.0629 0.4199 -0.21798 2020 4 12 58951 0.0641 0.4211 -0.21873 2020 4 13 58952 0.0653 0.4222 -0.21928 2020 4 14 58953 0.0666 0.4233 -0.21969 2020 4 15 58954 0.0678 0.4244 -0.22006 2020 4 16 58955 0.0691 0.4255 -0.22045 2020 4 17 58956 0.0704 0.4265 -0.22092 2020 4 18 58957 0.0718 0.4276 -0.22148 2020 4 19 58958 0.0731 0.4286 -0.22215 2020 4 20 58959 0.0745 0.4296 -0.22291 2020 4 21 58960 0.0759 0.4305 -0.22372 2020 4 22 58961 0.0773 0.4315 -0.22456 2020 4 23 58962 0.0787 0.4324 -0.22536 2020 4 24 58963 0.0802 0.4333 -0.22608 2020 4 25 58964 0.0817 0.4342 -0.22669 2020 4 26 58965 0.0831 0.4350 -0.22717 2020 4 27 58966 0.0846 0.4358 -0.22752 2020 4 28 58967 0.0862 0.4367 -0.22777 2020 4 29 58968 0.0877 0.4374 -0.22797 2020 4 30 58969 0.0892 0.4382 -0.22822 2020 5 1 58970 0.0908 0.4389 -0.22858 2020 5 2 58971 0.0924 0.4396 -0.22914 2020 5 3 58972 0.0940 0.4403 -0.22994 2020 5 4 58973 0.0956 0.4410 -0.23098 2020 5 5 58974 0.0972 0.4416 -0.23218 2020 5 6 58975 0.0988 0.4422 -0.23341 2020 5 7 58976 0.1005 0.4428 -0.23452 2020 5 8 58977 0.1021 0.4434 -0.23540 2020 5 9 58978 0.1038 0.4439 -0.23601 2020 5 10 58979 0.1055 0.4444 -0.23636 2020 5 11 58980 0.1072 0.4449 -0.23652 2020 5 12 58981 0.1089 0.4453 -0.23660 2020 5 13 58982 0.1106 0.4458 -0.23667 2020 5 14 58983 0.1123 0.4462 -0.23678 2020 5 15 58984 0.1140 0.4465 -0.23698 2020 5 16 58985 0.1157 0.4469 -0.23727 2020 5 17 58986 0.1175 0.4472 -0.23764 2020 5 18 58987 0.1192 0.4475 -0.23807 2020 5 19 58988 0.1210 0.4477 -0.23852 2020 5 20 58989 0.1227 0.4480 -0.23894 2020 5 21 58990 0.1245 0.4482 -0.23929 2020 5 22 58991 0.1263 0.4484 -0.23953 2020 5 23 58992 0.1280 0.4485 -0.23962 2020 5 24 58993 0.1298 0.4486 -0.23957 2020 5 25 58994 0.1316 0.4487 -0.23940 2020 5 26 58995 0.1334 0.4488 -0.23916 2020 5 27 58996 0.1351 0.4488 -0.23893 2020 5 28 58997 0.1369 0.4488 -0.23878 2020 5 29 58998 0.1387 0.4488 -0.23878 2020 5 30 58999 0.1405 0.4488 -0.23899 2020 5 31 59000 0.1423 0.4487 -0.23941 2020 6 1 59001 0.1441 0.4486 -0.24000 2020 6 2 59002 0.1458 0.4484 -0.24066 2020 6 3 59003 0.1476 0.4483 -0.24126 2020 6 4 59004 0.1494 0.4481 -0.24168 2020 6 5 59005 0.1512 0.4479 -0.24186 2020 6 6 59006 0.1529 0.4476 -0.24177 2020 6 7 59007 0.1547 0.4474 -0.24147 2020 6 8 59008 0.1565 0.4471 -0.24104 2020 6 9 59009 0.1582 0.4467 -0.24056 2020 6 10 59010 0.1600 0.4464 -0.24011 2020 6 11 59011 0.1617 0.4460 -0.23972 2020 6 12 59012 0.1635 0.4456 -0.23941 2020 6 13 59013 0.1652 0.4451 -0.23918 2020 6 14 59014 0.1669 0.4447 -0.23900 2020 6 15 59015 0.1687 0.4442 -0.23883 2020 6 16 59016 0.1704 0.4436 -0.23864 2020 6 17 59017 0.1721 0.4431 -0.23838 2020 6 18 59018 0.1738 0.4425 -0.23803 2020 6 19 59019 0.1754 0.4419 -0.23755 2020 6 20 59020 0.1771 0.4413 -0.23696 2020 6 21 59021 0.1788 0.4406 -0.23626 2020 6 22 59022 0.1804 0.4399 -0.23552 2020 6 23 59023 0.1820 0.4392 -0.23480 2020 6 24 59024 0.1837 0.4385 -0.23418 2020 6 25 59025 0.1853 0.4377 -0.23376 2020 6 26 59026 0.1869 0.4369 -0.23358 2020 6 27 59027 0.1885 0.4361 -0.23364 2020 6 28 59028 0.1900 0.4352 -0.23392 2020 6 29 59029 0.1916 0.4344 -0.23431 2020 6 30 59030 0.1931 0.4335 -0.23472 2020 7 1 59031 0.1946 0.4326 -0.23502 2020 7 2 59032 0.1961 0.4316 -0.23512 2020 7 3 59033 0.1976 0.4307 -0.23499 2020 7 4 59034 0.1991 0.4297 -0.23465 2020 7 5 59035 0.2005 0.4287 -0.23417 2020 7 6 59036 0.2020 0.4276 -0.23363 2020 7 7 59037 0.2034 0.4266 -0.23312 2020 7 8 59038 0.2048 0.4255 -0.23270 2020 7 9 59039 0.2062 0.4244 -0.23239 2020 7 10 59040 0.2075 0.4233 -0.23218 2020 7 11 59041 0.2088 0.4221 -0.23205 2020 7 12 59042 0.2102 0.4210 -0.23196 2020 7 13 59043 0.2114 0.4198 -0.23187 2020 7 14 59044 0.2127 0.4186 -0.23175 2020 7 15 59045 0.2140 0.4173 -0.23157 2020 7 16 59046 0.2152 0.4161 -0.23131 2020 7 17 59047 0.2164 0.4148 -0.23093 2020 7 18 59048 0.2176 0.4135 -0.23045 2020 7 19 59049 0.2187 0.4122 -0.22986 2020 7 20 59050 0.2199 0.4109 -0.22922 2020 7 21 59051 0.2210 0.4095 -0.22863 2020 7 22 59052 0.2221 0.4082 -0.22821 2020 7 23 59053 0.2231 0.4068 -0.22800 2020 7 24 59054 0.2241 0.4054 -0.22809 2020 7 25 59055 0.2251 0.4040 -0.22838 2020 7 26 59056 0.2261 0.4025 -0.22874 2020 7 27 59057 0.2271 0.4011 -0.22907 2020 7 28 59058 0.2280 0.3996 -0.22923 2020 7 29 59059 0.2289 0.3982 -0.22919 2020 7 30 59060 0.2298 0.3967 -0.22894 2020 7 31 59061 0.2306 0.3952 -0.22851 2020 8 1 59062 0.2315 0.3936 -0.22797 2020 8 2 59063 0.2322 0.3921 -0.22737 2020 8 3 59064 0.2330 0.3906 -0.22676 2020 8 4 59065 0.2337 0.3890 -0.22622 2020 8 5 59066 0.2344 0.3874 -0.22577 2020 8 6 59067 0.2351 0.3859 -0.22540 2020 8 7 59068 0.2358 0.3843 -0.22517 2020 8 8 59069 0.2364 0.3827 -0.22507 2020 8 9 59070 0.2370 0.3810 -0.22506 2020 8 10 59071 0.2375 0.3794 -0.22501 2020 8 11 59072 0.2380 0.3778 -0.22486 2020 8 12 59073 0.2385 0.3762 -0.22459 2020 8 13 59074 0.2390 0.3745 -0.22426 2020 8 14 59075 0.2394 0.3728 -0.22383 2020 8 15 59076 0.2398 0.3712 -0.22326 2020 8 16 59077 0.2402 0.3695 -0.22263 2020 8 17 59078 0.2406 0.3678 -0.22198 2020 8 18 59079 0.2409 0.3662 -0.22143 2020 8 19 59080 0.2412 0.3645 -0.22112 2020 8 20 59081 0.2414 0.3628 -0.22110 2020 8 21 59082 0.2416 0.3611 -0.22133 2020 8 22 59083 0.2418 0.3594 -0.22172 2020 8 23 59084 0.2420 0.3577 -0.22220 2020 8 24 59085 0.2421 0.3560 -0.22260 2020 8 25 59086 0.2422 0.3543 -0.22283 2020 8 26 59087 0.2422 0.3526 -0.22282 2020 8 27 59088 0.2423 0.3508 -0.22264 2020 8 28 59089 0.2423 0.3491 -0.22236 2020 8 29 59090 0.2422 0.3474 -0.22198 2020 8 30 59091 0.2422 0.3457 -0.22170 2020 8 31 59092 0.2420 0.3440 -0.22156 2020 9 1 59093 0.2419 0.3423 -0.22156 2020 9 2 59094 0.2418 0.3406 -0.22167 2020 9 3 59095 0.2416 0.3389 -0.22190 2020 9 4 59096 0.2413 0.3372 -0.22220 2020 9 5 59097 0.2411 0.3355 -0.22259 2020 9 6 59098 0.2408 0.3338 -0.22302 2020 9 7 59099 0.2404 0.3321 -0.22336 2020 9 8 59100 0.2401 0.3304 -0.22364 2020 9 9 59101 0.2397 0.3287 -0.22382 2020 9 10 59102 0.2393 0.3270 -0.22389 2020 9 11 59103 0.2388 0.3254 -0.22386 2020 9 12 59104 0.2384 0.3237 -0.22377 2020 9 13 59105 0.2378 0.3221 -0.22370 2020 9 14 59106 0.2373 0.3204 -0.22371 2020 9 15 59107 0.2367 0.3188 -0.22392 2020 9 16 59108 0.2361 0.3172 -0.22443 2020 9 17 59109 0.2355 0.3155 -0.22524 2020 9 18 59110 0.2348 0.3139 -0.22627 2020 9 19 59111 0.2341 0.3123 -0.22740 2020 9 20 59112 0.2334 0.3107 -0.22846 2020 9 21 59113 0.2326 0.3092 -0.22936 2020 9 22 59114 0.2318 0.3076 -0.23002 2020 9 23 59115 0.2310 0.3061 -0.23044 2020 9 24 59116 0.2302 0.3045 -0.23068 2020 9 25 59117 0.2293 0.3030 -0.23082 2020 9 26 59118 0.2284 0.3015 -0.23090 2020 9 27 59119 0.2275 0.3000 -0.23103 2020 9 28 59120 0.2265 0.2985 -0.23128 2020 9 29 59121 0.2255 0.2970 -0.23169 2020 9 30 59122 0.2245 0.2956 -0.23223 2020 10 1 59123 0.2235 0.2941 -0.23283 2020 10 2 59124 0.2224 0.2927 -0.23348 2020 10 3 59125 0.2213 0.2913 -0.23418 2020 10 4 59126 0.2202 0.2899 -0.23483 2020 10 5 59127 0.2190 0.2886 -0.23540 2020 10 6 59128 0.2178 0.2872 -0.23589 2020 10 7 59129 0.2166 0.2859 -0.23625 2020 10 8 59130 0.2154 0.2846 -0.23656 2020 10 9 59131 0.2141 0.2833 -0.23677 2020 10 10 59132 0.2129 0.2820 -0.23696 2020 10 11 59133 0.2116 0.2808 -0.23725 2020 10 12 59134 0.2102 0.2795 -0.23769 2020 10 13 59135 0.2089 0.2783 -0.23842 2020 10 14 59136 0.2075 0.2771 -0.23944 2020 10 15 59137 0.2061 0.2760 -0.24080 2020 10 16 59138 0.2047 0.2748 -0.24236 2020 10 17 59139 0.2033 0.2737 -0.24399 2020 10 18 59140 0.2018 0.2726 -0.24556 2020 10 19 59141 0.2003 0.2715 -0.24696 2020 10 20 59142 0.1988 0.2705 -0.24811 2020 10 21 59143 0.1973 0.2694 -0.24903 2020 10 22 59144 0.1957 0.2684 -0.24984 2020 10 23 59145 0.1942 0.2675 -0.25064 2020 10 24 59146 0.1926 0.2665 -0.25146 2020 10 25 59147 0.1910 0.2656 -0.25240 2020 10 26 59148 0.1894 0.2647 -0.25342 2020 10 27 59149 0.1877 0.2638 -0.25452 2020 10 28 59150 0.1861 0.2629 -0.25574 2020 10 29 59151 0.1844 0.2621 -0.25701 2020 10 30 59152 0.1827 0.2613 -0.25829 2020 10 31 59153 0.1810 0.2605 -0.25954 2020 11 1 59154 0.1793 0.2598 -0.26074 2020 11 2 59155 0.1776 0.2591 -0.26182 2020 11 3 59156 0.1758 0.2584 -0.26276 2020 11 4 59157 0.1741 0.2577 -0.26350 2020 11 5 59158 0.1723 0.2571 -0.26411 2020 11 6 59159 0.1705 0.2565 -0.26470 2020 11 7 59160 0.1687 0.2559 -0.26532 2020 11 8 59161 0.1669 0.2554 -0.26609 2020 11 9 59162 0.1651 0.2549 -0.26707 2020 11 10 59163 0.1632 0.2544 -0.26830 2020 11 11 59164 0.1614 0.2539 -0.26986 2020 11 12 59165 0.1595 0.2535 -0.27160 2020 11 13 59166 0.1577 0.2531 -0.27342 2020 11 14 59167 0.1558 0.2527 -0.27521 2020 11 15 59168 0.1539 0.2524 -0.27681 2020 11 16 59169 0.1520 0.2520 -0.27812 2020 11 17 59170 0.1501 0.2518 -0.27918 2020 11 18 59171 0.1482 0.2515 -0.28003 2020 11 19 59172 0.1463 0.2513 -0.28075 2020 11 20 59173 0.1444 0.2511 -0.28144 2020 11 21 59174 0.1425 0.2509 -0.28215 2020 11 22 59175 0.1406 0.2508 -0.28294 2020 11 23 59176 0.1387 0.2507 -0.28381 2020 11 24 59177 0.1368 0.2506 -0.28473 2020 11 25 59178 0.1348 0.2506 -0.28567 2020 11 26 59179 0.1329 0.2506 -0.28662 2020 11 27 59180 0.1310 0.2506 -0.28755 2020 11 28 59181 0.1290 0.2507 -0.28837 2020 11 29 59182 0.1271 0.2508 -0.28915 2020 11 30 59183 0.1252 0.2509 -0.28979 2020 12 1 59184 0.1232 0.2510 -0.29033 2020 12 2 59185 0.1213 0.2512 -0.29078 2020 12 3 59186 0.1194 0.2514 -0.29121 2020 12 4 59187 0.1175 0.2517 -0.29163 2020 12 5 59188 0.1156 0.2520 -0.29207 2020 12 6 59189 0.1136 0.2523 -0.29272 2020 12 7 59190 0.1117 0.2526 -0.29357 2020 12 8 59191 0.1098 0.2530 -0.29459 2020 12 9 59192 0.1079 0.2534 -0.29575 2020 12 10 59193 0.1060 0.2538 -0.29704 2020 12 11 59194 0.1041 0.2542 -0.29835 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) 58807 -111.13 0.18 -7.38 0.14 58808 -110.84 0.18 -7.13 0.14 58809 -110.90 0.18 -6.84 0.14 58810 -111.33 0.33 -6.68 0.18 58811 -111.86 0.11 -6.78 0.24 58812 -112.18 0.11 -7.05 0.24 58813 -112.15 0.08 -7.27 0.25 58814 -111.90 0.08 -7.28 0.25 58815 -111.58 0.08 -7.16 0.25 58816 -111.29 0.08 -7.07 0.25 58817 -111.01 0.32 -7.09 0.16 58818 -110.74 0.54 -7.12 0.07 58819 -110.52 0.54 -7.05 0.07 58820 -110.37 0.54 -6.92 0.07 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58807 0.083 0.071 0.144 0.144 58808 0.080 0.071 0.149 0.144 58809 0.071 0.071 0.161 0.144 58810 0.057 0.133 0.177 0.177 58811 0.040 0.045 0.194 0.238 58812 0.024 0.045 0.209 0.238 58813 0.014 0.033 0.218 0.249 58814 0.013 0.033 0.220 0.249 58815 0.022 0.033 0.214 0.249 58816 0.040 0.033 0.202 0.249 58817 0.064 0.128 0.185 0.160 58818 0.093 0.213 0.163 0.068 58819 0.126 0.213 0.139 0.068 58820 0.160 0.213 0.113 0.068 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).