********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 28 April 2022 Vol. XXXV No. 017 ______________________________________________________________________ GENERAL INFORMATION: 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 = -0.1 seconds beginning 17 July 2021 at 0000 UTC Beginning 1 January 2017: TAI-UTC = 37.000 000 seconds *********************************************************************** * ANNOUNCEMENTS: * * * * There will NOT be a leap second introduced * * in UTC at the end of June 2022 * * * * We are pleased to announce the re-opening of the official * * IERS Rapid Service / Prediction Center website at: * * https://maia.usno.navy.mil * * * * Starting Feb 10, 2022, this site will be the primary public source * * for data products published by the IERS Rapid Service / Prediction * * Center, as well as the primary source for announcements and * * information concerning those products. The latest IERS Bulletin A * * can be accessed at https://maia.usno.navy.mil/ser7/ser7.dat * * * * In addition to the overhauled website design, we have also made * * our services more robust and secure: * * * * - We have moved to distributing our products via HTTPS for * * increased data integrity and security of data transmission. * * Please note that unsecured plain HTTP is no longer supported. * * - The website and data are now hosted on an Amazon Web Services * * Cloud environment, improving server up-time and reliability. * * - We have consolidated our publication servers to a single * * instance, removing any confusion over the "best" server to use. * * The former backup site (toshi.nofs.navy.mil) has been retired * * and will not be returning. * * - A new version of the EO Matrix Calculator web application * * with an improved interface is now available at * * https://maia.usno.navy.mil/matrix-calculator * * * * During the outage, we hope you were able to continue receiving * * our products through NASA CDDIS, which graciously provided a * * mirror for our data while our main site was down. While this * * was not ideal for some customers, we thank you for your patience * * and understanding while we made several improvements to * * our website. All data products will continue to be uploaded to * * the CDDIS mirrors at https://cddis.nasa.gov/archive/products/iers/ * * and ftps://gdc.cddis.eosdis.nasa.gov/products/iers/ , so users * * should not expect any of their current links or data retrieval * * scripts to break. However, we encourage users to review * * their options and begin transitioning to https://maia.usno.navy.mil * * as their primary source if it meets their needs, as it will * * receive our publications more promptly and directly, without * * any need to login to the NASA Earthdata system. * * Updated EOPs may also be available at IERS: * * https://datacenter.iers.org/eop.php * * EOP data files are uploaded directly from USNO to this site each * * day. For further information, contact the IERS directly. * * * * 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 22 4 22 59691 0.07275 .00009 0.46408 .00009 -0.098304 0.000014 22 4 23 59692 0.07522 .00009 0.46510 .00009 -0.097919 0.000012 22 4 24 59693 0.07786 .00009 0.46633 .00009 -0.097532 0.000011 22 4 25 59694 0.08047 .00009 0.46796 .00009 -0.097325 0.000065 22 4 26 59695 0.08281 .00009 0.46980 .00009 -0.097245 0.000065 22 4 27 59696 0.08482 .00009 0.47142 .00009 -0.097327 0.000065 22 4 28 59697 0.08651 .00009 0.47277 .00009 -0.097471 0.000055 _______________________________________________________________________ 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 = 0.1453 - 0.0725 cos A + 0.0795 sin A + 0.0169 cos C + 0.0380 sin C y = 0.3615 + 0.0743 cos A + 0.0683 sin A + 0.0380 cos C - 0.0169 sin C UT1-UTC = -0.0465 + 0.00027 (MJD - 59705) - (UT2-UT1) where A = 2*pi*(MJD-59697)/365.25 and C = 2*pi*(MJD-59697)/435. TAI-UTC(MJD 59698) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59697)**0.80 S t = 0.00025 (MJD-59697)**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) 2022 4 29 59698 0.0882 0.4738 -0.09763 2022 4 30 59699 0.0898 0.4746 -0.09773 2022 5 1 59700 0.0917 0.4753 -0.09772 2022 5 2 59701 0.0936 0.4758 -0.09757 2022 5 3 59702 0.0957 0.4764 -0.09730 2022 5 4 59703 0.0978 0.4771 -0.09691 2022 5 5 59704 0.0998 0.4777 -0.09642 2022 5 6 59705 0.1019 0.4783 -0.09586 2022 5 7 59706 0.1038 0.4788 -0.09530 2022 5 8 59707 0.1058 0.4793 -0.09476 2022 5 9 59708 0.1077 0.4798 -0.09426 2022 5 10 59709 0.1096 0.4803 -0.09386 2022 5 11 59710 0.1116 0.4807 -0.09361 2022 5 12 59711 0.1135 0.4812 -0.09354 2022 5 13 59712 0.1154 0.4816 -0.09364 2022 5 14 59713 0.1173 0.4819 -0.09381 2022 5 15 59714 0.1191 0.4822 -0.09394 2022 5 16 59715 0.1210 0.4823 -0.09388 2022 5 17 59716 0.1230 0.4825 -0.09353 2022 5 18 59717 0.1250 0.4826 -0.09289 2022 5 19 59718 0.1270 0.4827 -0.09206 2022 5 20 59719 0.1291 0.4829 -0.09116 2022 5 21 59720 0.1311 0.4830 -0.09033 2022 5 22 59721 0.1331 0.4831 -0.08965 2022 5 23 59722 0.1351 0.4832 -0.08914 2022 5 24 59723 0.1371 0.4832 -0.08876 2022 5 25 59724 0.1391 0.4832 -0.08844 2022 5 26 59725 0.1411 0.4832 -0.08811 2022 5 27 59726 0.1431 0.4831 -0.08770 2022 5 28 59727 0.1451 0.4830 -0.08712 2022 5 29 59728 0.1472 0.4829 -0.08635 2022 5 30 59729 0.1492 0.4827 -0.08536 2022 5 31 59730 0.1512 0.4825 -0.08415 2022 6 1 59731 0.1532 0.4823 -0.08278 2022 6 2 59732 0.1553 0.4821 -0.08131 2022 6 3 59733 0.1573 0.4818 -0.07980 2022 6 4 59734 0.1594 0.4815 -0.07834 2022 6 5 59735 0.1614 0.4812 -0.07699 2022 6 6 59736 0.1634 0.4808 -0.07580 2022 6 7 59737 0.1654 0.4804 -0.07481 2022 6 8 59738 0.1674 0.4800 -0.07403 2022 6 9 59739 0.1694 0.4796 -0.07341 2022 6 10 59740 0.1714 0.4791 -0.07291 2022 6 11 59741 0.1734 0.4786 -0.07240 2022 6 12 59742 0.1754 0.4780 -0.07177 2022 6 13 59743 0.1774 0.4775 -0.07092 2022 6 14 59744 0.1794 0.4769 -0.06980 2022 6 15 59745 0.1813 0.4762 -0.06847 2022 6 16 59746 0.1833 0.4756 -0.06705 2022 6 17 59747 0.1852 0.4749 -0.06567 2022 6 18 59748 0.1872 0.4742 -0.06445 2022 6 19 59749 0.1891 0.4734 -0.06343 2022 6 20 59750 0.1910 0.4726 -0.06260 2022 6 21 59751 0.1929 0.4718 -0.06186 2022 6 22 59752 0.1948 0.4710 -0.06114 2022 6 23 59753 0.1966 0.4701 -0.06034 2022 6 24 59754 0.1985 0.4693 -0.05941 2022 6 25 59755 0.2003 0.4683 -0.05829 2022 6 26 59756 0.2022 0.4674 -0.05698 2022 6 27 59757 0.2040 0.4664 -0.05548 2022 6 28 59758 0.2058 0.4654 -0.05384 2022 6 29 59759 0.2075 0.4644 -0.05209 2022 6 30 59760 0.2093 0.4634 -0.05032 2022 7 1 59761 0.2111 0.4623 -0.04859 2022 7 2 59762 0.2128 0.4612 -0.04698 2022 7 3 59763 0.2145 0.4600 -0.04553 2022 7 4 59764 0.2162 0.4589 -0.04429 2022 7 5 59765 0.2178 0.4577 -0.04324 2022 7 6 59766 0.2195 0.4565 -0.04238 2022 7 7 59767 0.2211 0.4553 -0.04164 2022 7 8 59768 0.2227 0.4540 -0.04095 2022 7 9 59769 0.2243 0.4527 -0.04020 2022 7 10 59770 0.2259 0.4514 -0.03929 2022 7 11 59771 0.2274 0.4501 -0.03816 2022 7 12 59772 0.2290 0.4488 -0.03683 2022 7 13 59773 0.2305 0.4474 -0.03537 2022 7 14 59774 0.2319 0.4460 -0.03394 2022 7 15 59775 0.2334 0.4446 -0.03266 2022 7 16 59776 0.2348 0.4432 -0.03161 2022 7 17 59777 0.2362 0.4417 -0.03080 2022 7 18 59778 0.2376 0.4402 -0.03016 2022 7 19 59779 0.2389 0.4387 -0.02957 2022 7 20 59780 0.2403 0.4372 -0.02893 2022 7 21 59781 0.2416 0.4357 -0.02816 2022 7 22 59782 0.2429 0.4341 -0.02720 2022 7 23 59783 0.2441 0.4325 -0.02604 2022 7 24 59784 0.2453 0.4309 -0.02468 2022 7 25 59785 0.2465 0.4293 -0.02317 2022 7 26 59786 0.2477 0.4277 -0.02156 2022 7 27 59787 0.2488 0.4260 -0.01990 2022 7 28 59788 0.2499 0.4243 -0.01828 2022 7 29 59789 0.2510 0.4227 -0.01675 2022 7 30 59790 0.2521 0.4210 -0.01538 2022 7 31 59791 0.2531 0.4192 -0.01421 2022 8 1 59792 0.2541 0.4175 -0.01323 2022 8 2 59793 0.2550 0.4158 -0.01244 2022 8 3 59794 0.2560 0.4140 -0.01177 2022 8 4 59795 0.2569 0.4122 -0.01115 2022 8 5 59796 0.2577 0.4104 -0.01049 2022 8 6 59797 0.2586 0.4086 -0.00970 2022 8 7 59798 0.2594 0.4068 -0.00873 2022 8 8 59799 0.2602 0.4050 -0.00755 2022 8 9 59800 0.2609 0.4032 -0.00624 2022 8 10 59801 0.2616 0.4013 -0.00490 2022 8 11 59802 0.2623 0.3994 -0.00367 2022 8 12 59803 0.2630 0.3976 -0.00268 2022 8 13 59804 0.2636 0.3957 -0.00195 2022 8 14 59805 0.2642 0.3938 -0.00146 2022 8 15 59806 0.2647 0.3919 -0.00102 2022 8 16 59807 0.2652 0.3900 -0.00058 2022 8 17 59808 0.2657 0.3881 -0.00003 2022 8 18 59809 0.2662 0.3862 0.00070 2022 8 19 59810 0.2666 0.3842 0.00164 2022 8 20 59811 0.2670 0.3823 0.00278 2022 8 21 59812 0.2673 0.3804 0.00407 2022 8 22 59813 0.2676 0.3784 0.00548 2022 8 23 59814 0.2679 0.3765 0.00693 2022 8 24 59815 0.2682 0.3745 0.00835 2022 8 25 59816 0.2684 0.3726 0.00967 2022 8 26 59817 0.2686 0.3706 0.01083 2022 8 27 59818 0.2687 0.3686 0.01178 2022 8 28 59819 0.2688 0.3667 0.01251 2022 8 29 59820 0.2689 0.3647 0.01304 2022 8 30 59821 0.2689 0.3627 0.01342 2022 8 31 59822 0.2689 0.3608 0.01373 2022 9 1 59823 0.2689 0.3588 0.01407 2022 9 2 59824 0.2689 0.3568 0.01453 2022 9 3 59825 0.2688 0.3549 0.01517 2022 9 4 59826 0.2686 0.3529 0.01599 2022 9 5 59827 0.2685 0.3510 0.01697 2022 9 6 59828 0.2683 0.3490 0.01800 2022 9 7 59829 0.2680 0.3470 0.01895 2022 9 8 59830 0.2678 0.3451 0.01969 2022 9 9 59831 0.2675 0.3431 0.02017 2022 9 10 59832 0.2671 0.3412 0.02036 2022 9 11 59833 0.2668 0.3393 0.02035 2022 9 12 59834 0.2664 0.3373 0.02027 2022 9 13 59835 0.2659 0.3354 0.02023 2022 9 14 59836 0.2655 0.3335 0.02035 2022 9 15 59837 0.2650 0.3316 0.02068 2022 9 16 59838 0.2644 0.3297 0.02122 2022 9 17 59839 0.2639 0.3278 0.02195 2022 9 18 59840 0.2633 0.3259 0.02281 2022 9 19 59841 0.2626 0.3240 0.02374 2022 9 20 59842 0.2619 0.3222 0.02467 2022 9 21 59843 0.2612 0.3203 0.02551 2022 9 22 59844 0.2605 0.3185 0.02620 2022 9 23 59845 0.2597 0.3166 0.02670 2022 9 24 59846 0.2589 0.3148 0.02697 2022 9 25 59847 0.2581 0.3130 0.02701 2022 9 26 59848 0.2572 0.3112 0.02688 2022 9 27 59849 0.2564 0.3094 0.02665 2022 9 28 59850 0.2554 0.3077 0.02643 2022 9 29 59851 0.2545 0.3059 0.02631 2022 9 30 59852 0.2535 0.3042 0.02638 2022 10 1 59853 0.2525 0.3025 0.02667 2022 10 2 59854 0.2514 0.3007 0.02713 2022 10 3 59855 0.2503 0.2991 0.02767 2022 10 4 59856 0.2492 0.2974 0.02819 2022 10 5 59857 0.2481 0.2957 0.02855 2022 10 6 59858 0.2469 0.2941 0.02867 2022 10 7 59859 0.2457 0.2925 0.02852 2022 10 8 59860 0.2445 0.2909 0.02814 2022 10 9 59861 0.2433 0.2893 0.02763 2022 10 10 59862 0.2420 0.2877 0.02711 2022 10 11 59863 0.2407 0.2862 0.02670 2022 10 12 59864 0.2394 0.2846 0.02649 2022 10 13 59865 0.2380 0.2831 0.02649 2022 10 14 59866 0.2366 0.2817 0.02672 2022 10 15 59867 0.2352 0.2802 0.02711 2022 10 16 59868 0.2338 0.2787 0.02761 2022 10 17 59869 0.2323 0.2773 0.02814 2022 10 18 59870 0.2308 0.2759 0.02862 2022 10 19 59871 0.2293 0.2746 0.02898 2022 10 20 59872 0.2278 0.2732 0.02916 2022 10 21 59873 0.2262 0.2719 0.02913 2022 10 22 59874 0.2246 0.2706 0.02888 2022 10 23 59875 0.2230 0.2693 0.02842 2022 10 24 59876 0.2214 0.2680 0.02782 2022 10 25 59877 0.2198 0.2668 0.02717 2022 10 26 59878 0.2181 0.2656 0.02658 2022 10 27 59879 0.2164 0.2644 0.02616 2022 10 28 59880 0.2147 0.2633 0.02596 2022 10 29 59881 0.2130 0.2622 0.02595 2022 10 30 59882 0.2112 0.2611 0.02605 2022 10 31 59883 0.2094 0.2600 0.02615 2022 11 1 59884 0.2077 0.2589 0.02610 2022 11 2 59885 0.2059 0.2579 0.02583 2022 11 3 59886 0.2040 0.2569 0.02529 2022 11 4 59887 0.2022 0.2560 0.02453 2022 11 5 59888 0.2003 0.2550 0.02365 2022 11 6 59889 0.1985 0.2541 0.02275 2022 11 7 59890 0.1966 0.2532 0.02198 2022 11 8 59891 0.1947 0.2524 0.02143 2022 11 9 59892 0.1928 0.2516 0.02116 2022 11 10 59893 0.1908 0.2508 0.02116 2022 11 11 59894 0.1889 0.2500 0.02141 2022 11 12 59895 0.1870 0.2493 0.02182 2022 11 13 59896 0.1850 0.2486 0.02232 2022 11 14 59897 0.1830 0.2479 0.02282 2022 11 15 59898 0.1810 0.2473 0.02325 2022 11 16 59899 0.1790 0.2467 0.02355 2022 11 17 59900 0.1770 0.2461 0.02368 2022 11 18 59901 0.1750 0.2455 0.02363 2022 11 19 59902 0.1730 0.2450 0.02340 2022 11 20 59903 0.1709 0.2445 0.02302 2022 11 21 59904 0.1689 0.2441 0.02258 2022 11 22 59905 0.1668 0.2437 0.02218 2022 11 23 59906 0.1648 0.2433 0.02192 2022 11 24 59907 0.1627 0.2429 0.02190 2022 11 25 59908 0.1606 0.2426 0.02213 2022 11 26 59909 0.1586 0.2423 0.02254 2022 11 27 59910 0.1565 0.2420 0.02302 2022 11 28 59911 0.1544 0.2418 0.02341 2022 11 29 59912 0.1523 0.2416 0.02361 2022 11 30 59913 0.1502 0.2414 0.02358 2022 12 1 59914 0.1481 0.2413 0.02336 2022 12 2 59915 0.1460 0.2411 0.02302 2022 12 3 59916 0.1440 0.2411 0.02267 2022 12 4 59917 0.1419 0.2410 0.02243 2022 12 5 59918 0.1398 0.2410 0.02240 2022 12 6 59919 0.1377 0.2410 0.02265 2022 12 7 59920 0.1356 0.2411 0.02312 2022 12 8 59921 0.1335 0.2412 0.02373 2022 12 9 59922 0.1314 0.2413 0.02444 2022 12 10 59923 0.1293 0.2414 0.02530 2022 12 11 59924 0.1272 0.2416 0.02610 2022 12 12 59925 0.1252 0.2418 0.02681 2022 12 13 59926 0.1231 0.2421 0.02744 2022 12 14 59927 0.1210 0.2423 0.02786 2022 12 15 59928 0.1190 0.2426 0.02812 2022 12 16 59929 0.1169 0.2430 0.02823 2022 12 17 59930 0.1149 0.2433 0.02821 2022 12 18 59931 0.1128 0.2437 0.02814 2022 12 19 59932 0.1108 0.2442 0.02813 2022 12 20 59933 0.1088 0.2446 0.02816 2022 12 21 59934 0.1068 0.2451 0.02837 2022 12 22 59935 0.1048 0.2456 0.02871 2022 12 23 59936 0.1028 0.2462 0.02933 2022 12 24 59937 0.1008 0.2468 0.03008 2022 12 25 59938 0.0988 0.2474 0.03079 2022 12 26 59939 0.0969 0.2480 0.03129 2022 12 27 59940 0.0949 0.2487 0.03156 2022 12 28 59941 0.0930 0.2494 0.03152 2022 12 29 59942 0.0911 0.2501 0.03134 2022 12 30 59943 0.0892 0.2509 0.03108 2022 12 31 59944 0.0873 0.2517 0.03095 2023 1 1 59945 0.0854 0.2525 0.03095 2023 1 2 59946 0.0835 0.2533 0.03115 2023 1 3 59947 0.0817 0.2542 0.03156 2023 1 4 59948 0.0799 0.2551 0.03213 2023 1 5 59949 0.0781 0.2560 0.03283 2023 1 6 59950 0.0763 0.2570 0.03354 2023 1 7 59951 0.0745 0.2580 0.03435 2023 1 8 59952 0.0728 0.2590 0.03511 2023 1 9 59953 0.0710 0.2600 0.03575 2023 1 10 59954 0.0693 0.2611 0.03630 2023 1 11 59955 0.0676 0.2622 0.03665 2023 1 12 59956 0.0659 0.2633 0.03694 2023 1 13 59957 0.0643 0.2644 0.03703 2023 1 14 59958 0.0627 0.2656 0.03702 2023 1 15 59959 0.0611 0.2668 0.03696 2023 1 16 59960 0.0595 0.2680 0.03698 2023 1 17 59961 0.0579 0.2692 0.03713 2023 1 18 59962 0.0564 0.2705 0.03744 2023 1 19 59963 0.0548 0.2718 0.03793 2023 1 20 59964 0.0534 0.2731 0.03859 2023 1 21 59965 0.0519 0.2744 0.03923 2023 1 22 59966 0.0504 0.2758 0.03969 2023 1 23 59967 0.0490 0.2771 0.03988 2023 1 24 59968 0.0476 0.2785 0.03974 2023 1 25 59969 0.0463 0.2799 0.03933 2023 1 26 59970 0.0449 0.2814 0.03881 2023 1 27 59971 0.0436 0.2828 0.03836 2023 1 28 59972 0.0423 0.2843 0.03799 2023 1 29 59973 0.0411 0.2858 0.03786 2023 1 30 59974 0.0398 0.2873 0.03792 2023 1 31 59975 0.0386 0.2888 0.03814 2023 2 1 59976 0.0375 0.2904 0.03846 2023 2 2 59977 0.0363 0.2920 0.03880 2023 2 3 59978 0.0352 0.2935 0.03907 2023 2 4 59979 0.0341 0.2951 0.03934 2023 2 5 59980 0.0330 0.2968 0.03949 2023 2 6 59981 0.0320 0.2984 0.03949 2023 2 7 59982 0.0310 0.3000 0.03931 2023 2 8 59983 0.0301 0.3017 0.03896 2023 2 9 59984 0.0291 0.3034 0.03848 2023 2 10 59985 0.0282 0.3051 0.03786 2023 2 11 59986 0.0273 0.3068 0.03722 2023 2 12 59987 0.0265 0.3085 0.03660 2023 2 13 59988 0.0257 0.3102 0.03609 2023 2 14 59989 0.0249 0.3120 0.03576 2023 2 15 59990 0.0242 0.3137 0.03551 2023 2 16 59991 0.0234 0.3155 0.03542 2023 2 17 59992 0.0228 0.3172 0.03539 2023 2 18 59993 0.0221 0.3190 0.03526 2023 2 19 59994 0.0215 0.3208 0.03486 2023 2 20 59995 0.0209 0.3226 0.03418 2023 2 21 59996 0.0204 0.3244 0.03329 2023 2 22 59997 0.0198 0.3262 0.03227 2023 2 23 59998 0.0194 0.3281 0.03118 2023 2 24 59999 0.0189 0.3299 0.03023 2023 2 25 60000 0.0185 0.3317 0.02955 2023 2 26 60001 0.0181 0.3336 0.02917 2023 2 27 60002 0.0178 0.3354 0.02908 2023 2 28 60003 0.0174 0.3373 0.02917 2023 3 1 60004 0.0172 0.3391 0.02939 2023 3 2 60005 0.0169 0.3410 0.02966 2023 3 3 60006 0.0167 0.3429 0.02999 2023 3 4 60007 0.0165 0.3447 0.03023 2023 3 5 60008 0.0164 0.3466 0.03035 2023 3 6 60009 0.0163 0.3485 0.03028 2023 3 7 60010 0.0162 0.3503 0.03012 2023 3 8 60011 0.0161 0.3522 0.02974 2023 3 9 60012 0.0161 0.3541 0.02922 2023 3 10 60013 0.0162 0.3560 0.02865 2023 3 11 60014 0.0162 0.3578 0.02811 2023 3 12 60015 0.0163 0.3597 0.02774 2023 3 13 60016 0.0164 0.3616 0.02749 2023 3 14 60017 0.0166 0.3634 0.02751 2023 3 15 60018 0.0168 0.3653 0.02774 2023 3 16 60019 0.0170 0.3671 0.02802 2023 3 17 60020 0.0173 0.3690 0.02818 2023 3 18 60021 0.0176 0.3708 0.02814 2023 3 19 60022 0.0179 0.3727 0.02774 2023 3 20 60023 0.0183 0.3745 0.02696 2023 3 21 60024 0.0187 0.3764 0.02594 2023 3 22 60025 0.0191 0.3782 0.02473 2023 3 23 60026 0.0196 0.3800 0.02353 2023 3 24 60027 0.0201 0.3818 0.02252 2023 3 25 60028 0.0206 0.3836 0.02175 2023 3 26 60029 0.0211 0.3854 0.02128 2023 3 27 60030 0.0217 0.3872 0.02097 2023 3 28 60031 0.0224 0.3890 0.02083 2023 3 29 60032 0.0230 0.3907 0.02083 2023 3 30 60033 0.0237 0.3925 0.02080 2023 3 31 60034 0.0244 0.3942 0.02076 2023 4 1 60035 0.0252 0.3959 0.02056 2023 4 2 60036 0.0260 0.3977 0.02021 2023 4 3 60037 0.0268 0.3994 0.01971 2023 4 4 60038 0.0276 0.4011 0.01900 2023 4 5 60039 0.0285 0.4027 0.01813 2023 4 6 60040 0.0294 0.4044 0.01717 2023 4 7 60041 0.0303 0.4061 0.01618 2023 4 8 60042 0.0313 0.4077 0.01528 2023 4 9 60043 0.0323 0.4093 0.01461 2023 4 10 60044 0.0333 0.4109 0.01417 2023 4 11 60045 0.0344 0.4125 0.01396 2023 4 12 60046 0.0355 0.4141 0.01390 2023 4 13 60047 0.0366 0.4156 0.01383 2023 4 14 60048 0.0377 0.4171 0.01360 2023 4 15 60049 0.0389 0.4187 0.01311 2023 4 16 60050 0.0401 0.4202 0.01233 2023 4 17 60051 0.0413 0.4216 0.01133 2023 4 18 60052 0.0425 0.4231 0.01016 2023 4 19 60053 0.0438 0.4245 0.00895 2023 4 20 60054 0.0451 0.4260 0.00785 2023 4 21 60055 0.0464 0.4274 0.00697 2023 4 22 60056 0.0478 0.4287 0.00625 2023 4 23 60057 0.0491 0.4301 0.00587 2023 4 24 60058 0.0505 0.4314 0.00568 2023 4 25 60059 0.0519 0.4327 0.00568 2023 4 26 60060 0.0534 0.4340 0.00572 2023 4 27 60061 0.0548 0.4353 0.00577 2023 4 28 60062 0.0563 0.4366 0.00579 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) 59678 -106.04 0.77 -8.83 0.08 59679 -105.51 0.85 -9.09 0.08 59680 -105.04 0.85 -9.33 0.08 59681 -104.84 0.90 -9.48 0.07 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59678 0.305 0.306 -0.051 0.085 59679 0.319 0.337 -0.055 0.078 59680 0.335 0.337 -0.059 0.078 59681 0.351 0.359 -0.063 0.073