********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 21 April 2022 Vol. XXXV No. 016 ______________________________________________________________________ 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 15 59684 0.05788 .00009 0.45451 .00009 -0.096895 0.000013 22 4 16 59685 0.05942 .00009 0.45618 .00009 -0.097402 0.000014 22 4 17 59686 0.06132 .00009 0.45781 .00009 -0.097978 0.000014 22 4 18 59687 0.06370 .00009 0.45933 .00009 -0.098482 0.000019 22 4 19 59688 0.06612 .00009 0.46078 .00009 -0.098807 0.000020 22 4 20 59689 0.06834 .00009 0.46199 .00009 -0.098888 0.000019 22 4 21 59690 0.07052 .00009 0.46309 .00009 -0.098696 0.000018 _______________________________________________________________________ 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 = 0.1419 - 0.0796 cos A + 0.0694 sin A + 0.0106 cos C + 0.0391 sin C y = 0.3611 + 0.0646 cos A + 0.0743 sin A + 0.0391 cos C - 0.0106 sin C UT1-UTC = -0.0488 + 0.00026 (MJD - 59698) - (UT2-UT1) where A = 2*pi*(MJD-59690)/365.25 and C = 2*pi*(MJD-59690)/435. TAI-UTC(MJD 59691) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59690)**0.80 S t = 0.00025 (MJD-59690)**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 22 59691 0.0726 0.4641 -0.09829 2022 4 23 59692 0.0746 0.4651 -0.09784 2022 4 24 59693 0.0765 0.4660 -0.09747 2022 4 25 59694 0.0783 0.4668 -0.09723 2022 4 26 59695 0.0802 0.4676 -0.09717 2022 4 27 59696 0.0820 0.4684 -0.09728 2022 4 28 59697 0.0838 0.4691 -0.09748 2022 4 29 59698 0.0856 0.4699 -0.09766 2022 4 30 59699 0.0874 0.4706 -0.09774 2022 5 1 59700 0.0893 0.4713 -0.09766 2022 5 2 59701 0.0912 0.4719 -0.09738 2022 5 3 59702 0.0931 0.4725 -0.09692 2022 5 4 59703 0.0951 0.4731 -0.09632 2022 5 5 59704 0.0971 0.4737 -0.09561 2022 5 6 59705 0.0990 0.4742 -0.09482 2022 5 7 59706 0.1009 0.4747 -0.09399 2022 5 8 59707 0.1028 0.4752 -0.09321 2022 5 9 59708 0.1047 0.4757 -0.09254 2022 5 10 59709 0.1065 0.4761 -0.09205 2022 5 11 59710 0.1084 0.4765 -0.09176 2022 5 12 59711 0.1103 0.4769 -0.09167 2022 5 13 59712 0.1122 0.4773 -0.09172 2022 5 14 59713 0.1142 0.4777 -0.09181 2022 5 15 59714 0.1162 0.4780 -0.09181 2022 5 16 59715 0.1181 0.4783 -0.09161 2022 5 17 59716 0.1201 0.4786 -0.09113 2022 5 18 59717 0.1221 0.4788 -0.09038 2022 5 19 59718 0.1241 0.4790 -0.08945 2022 5 20 59719 0.1262 0.4792 -0.08846 2022 5 21 59720 0.1282 0.4794 -0.08753 2022 5 22 59721 0.1302 0.4795 -0.08675 2022 5 23 59722 0.1322 0.4796 -0.08615 2022 5 24 59723 0.1342 0.4797 -0.08571 2022 5 25 59724 0.1363 0.4797 -0.08534 2022 5 26 59725 0.1383 0.4797 -0.08497 2022 5 27 59726 0.1403 0.4797 -0.08453 2022 5 28 59727 0.1424 0.4797 -0.08394 2022 5 29 59728 0.1444 0.4796 -0.08316 2022 5 30 59729 0.1465 0.4795 -0.08219 2022 5 31 59730 0.1485 0.4793 -0.08102 2022 6 1 59731 0.1506 0.4792 -0.07970 2022 6 2 59732 0.1526 0.4790 -0.07829 2022 6 3 59733 0.1547 0.4787 -0.07686 2022 6 4 59734 0.1567 0.4784 -0.07548 2022 6 5 59735 0.1588 0.4781 -0.07421 2022 6 6 59736 0.1608 0.4778 -0.07310 2022 6 7 59737 0.1628 0.4775 -0.07218 2022 6 8 59738 0.1648 0.4771 -0.07146 2022 6 9 59739 0.1669 0.4766 -0.07091 2022 6 10 59740 0.1689 0.4762 -0.07046 2022 6 11 59741 0.1709 0.4757 -0.07001 2022 6 12 59742 0.1729 0.4752 -0.06943 2022 6 13 59743 0.1749 0.4747 -0.06863 2022 6 14 59744 0.1768 0.4741 -0.06757 2022 6 15 59745 0.1788 0.4735 -0.06630 2022 6 16 59746 0.1808 0.4729 -0.06495 2022 6 17 59747 0.1827 0.4722 -0.06365 2022 6 18 59748 0.1847 0.4715 -0.06251 2022 6 19 59749 0.1866 0.4708 -0.06159 2022 6 20 59750 0.1885 0.4700 -0.06085 2022 6 21 59751 0.1904 0.4693 -0.06022 2022 6 22 59752 0.1923 0.4685 -0.05962 2022 6 23 59753 0.1942 0.4676 -0.05895 2022 6 24 59754 0.1961 0.4668 -0.05814 2022 6 25 59755 0.1979 0.4659 -0.05716 2022 6 26 59756 0.1997 0.4650 -0.05599 2022 6 27 59757 0.2016 0.4640 -0.05464 2022 6 28 59758 0.2034 0.4631 -0.05314 2022 6 29 59759 0.2052 0.4621 -0.05154 2022 6 30 59760 0.2069 0.4610 -0.04992 2022 7 1 59761 0.2087 0.4600 -0.04834 2022 7 2 59762 0.2104 0.4589 -0.04687 2022 7 3 59763 0.2121 0.4578 -0.04557 2022 7 4 59764 0.2138 0.4567 -0.04446 2022 7 5 59765 0.2155 0.4555 -0.04355 2022 7 6 59766 0.2172 0.4544 -0.04281 2022 7 7 59767 0.2188 0.4532 -0.04219 2022 7 8 59768 0.2204 0.4519 -0.04161 2022 7 9 59769 0.2220 0.4507 -0.04096 2022 7 10 59770 0.2236 0.4494 -0.04015 2022 7 11 59771 0.2252 0.4481 -0.03910 2022 7 12 59772 0.2267 0.4468 -0.03784 2022 7 13 59773 0.2282 0.4454 -0.03645 2022 7 14 59774 0.2297 0.4441 -0.03506 2022 7 15 59775 0.2312 0.4427 -0.03383 2022 7 16 59776 0.2326 0.4413 -0.03281 2022 7 17 59777 0.2340 0.4398 -0.03203 2022 7 18 59778 0.2354 0.4384 -0.03140 2022 7 19 59779 0.2368 0.4369 -0.03083 2022 7 20 59780 0.2381 0.4354 -0.03019 2022 7 21 59781 0.2395 0.4339 -0.02941 2022 7 22 59782 0.2407 0.4323 -0.02844 2022 7 23 59783 0.2420 0.4308 -0.02728 2022 7 24 59784 0.2432 0.4292 -0.02592 2022 7 25 59785 0.2444 0.4276 -0.02441 2022 7 26 59786 0.2456 0.4260 -0.02279 2022 7 27 59787 0.2468 0.4244 -0.02113 2022 7 28 59788 0.2479 0.4227 -0.01950 2022 7 29 59789 0.2490 0.4211 -0.01798 2022 7 30 59790 0.2501 0.4194 -0.01661 2022 7 31 59791 0.2511 0.4177 -0.01544 2022 8 1 59792 0.2521 0.4160 -0.01447 2022 8 2 59793 0.2531 0.4143 -0.01367 2022 8 3 59794 0.2540 0.4125 -0.01300 2022 8 4 59795 0.2549 0.4108 -0.01238 2022 8 5 59796 0.2558 0.4090 -0.01172 2022 8 6 59797 0.2567 0.4072 -0.01092 2022 8 7 59798 0.2575 0.4054 -0.00994 2022 8 8 59799 0.2583 0.4036 -0.00868 2022 8 9 59800 0.2590 0.4018 -0.00727 2022 8 10 59801 0.2598 0.4000 -0.00585 2022 8 11 59802 0.2604 0.3981 -0.00454 2022 8 12 59803 0.2611 0.3963 -0.00347 2022 8 13 59804 0.2617 0.3944 -0.00267 2022 8 14 59805 0.2623 0.3926 -0.00210 2022 8 15 59806 0.2629 0.3907 -0.00167 2022 8 16 59807 0.2634 0.3888 -0.00123 2022 8 17 59808 0.2639 0.3869 -0.00069 2022 8 18 59809 0.2644 0.3850 0.00003 2022 8 19 59810 0.2648 0.3831 0.00096 2022 8 20 59811 0.2652 0.3812 0.00208 2022 8 21 59812 0.2656 0.3793 0.00337 2022 8 22 59813 0.2659 0.3773 0.00477 2022 8 23 59814 0.2662 0.3754 0.00621 2022 8 24 59815 0.2664 0.3735 0.00762 2022 8 25 59816 0.2667 0.3715 0.00893 2022 8 26 59817 0.2669 0.3696 0.01008 2022 8 27 59818 0.2670 0.3676 0.01103 2022 8 28 59819 0.2671 0.3657 0.01175 2022 8 29 59820 0.2672 0.3638 0.01227 2022 8 30 59821 0.2673 0.3618 0.01264 2022 8 31 59822 0.2673 0.3599 0.01294 2022 9 1 59823 0.2673 0.3579 0.01327 2022 9 2 59824 0.2672 0.3560 0.01372 2022 9 3 59825 0.2672 0.3540 0.01434 2022 9 4 59826 0.2670 0.3521 0.01515 2022 9 5 59827 0.2669 0.3501 0.01611 2022 9 6 59828 0.2667 0.3482 0.01712 2022 9 7 59829 0.2665 0.3462 0.01805 2022 9 8 59830 0.2662 0.3443 0.01878 2022 9 9 59831 0.2659 0.3424 0.01924 2022 9 10 59832 0.2656 0.3405 0.01941 2022 9 11 59833 0.2652 0.3385 0.01939 2022 9 12 59834 0.2648 0.3366 0.01928 2022 9 13 59835 0.2644 0.3347 0.01922 2022 9 14 59836 0.2640 0.3328 0.01932 2022 9 15 59837 0.2635 0.3309 0.01962 2022 9 16 59838 0.2629 0.3290 0.02014 2022 9 17 59839 0.2624 0.3271 0.02084 2022 9 18 59840 0.2618 0.3253 0.02168 2022 9 19 59841 0.2612 0.3234 0.02258 2022 9 20 59842 0.2605 0.3216 0.02348 2022 9 21 59843 0.2598 0.3197 0.02429 2022 9 22 59844 0.2591 0.3179 0.02496 2022 9 23 59845 0.2583 0.3161 0.02543 2022 9 24 59846 0.2575 0.3143 0.02567 2022 9 25 59847 0.2567 0.3125 0.02569 2022 9 26 59848 0.2558 0.3107 0.02553 2022 9 27 59849 0.2550 0.3089 0.02527 2022 9 28 59850 0.2540 0.3072 0.02502 2022 9 29 59851 0.2531 0.3054 0.02488 2022 9 30 59852 0.2521 0.3037 0.02492 2022 10 1 59853 0.2511 0.3020 0.02518 2022 10 2 59854 0.2501 0.3003 0.02562 2022 10 3 59855 0.2490 0.2986 0.02614 2022 10 4 59856 0.2479 0.2970 0.02663 2022 10 5 59857 0.2468 0.2953 0.02696 2022 10 6 59858 0.2456 0.2937 0.02706 2022 10 7 59859 0.2444 0.2921 0.02688 2022 10 8 59860 0.2432 0.2905 0.02647 2022 10 9 59861 0.2420 0.2889 0.02593 2022 10 10 59862 0.2407 0.2874 0.02538 2022 10 11 59863 0.2394 0.2858 0.02493 2022 10 12 59864 0.2381 0.2843 0.02467 2022 10 13 59865 0.2367 0.2828 0.02463 2022 10 14 59866 0.2353 0.2813 0.02481 2022 10 15 59867 0.2339 0.2799 0.02514 2022 10 16 59868 0.2325 0.2785 0.02558 2022 10 17 59869 0.2311 0.2770 0.02604 2022 10 18 59870 0.2296 0.2757 0.02644 2022 10 19 59871 0.2281 0.2743 0.02671 2022 10 20 59872 0.2265 0.2730 0.02679 2022 10 21 59873 0.2250 0.2716 0.02665 2022 10 22 59874 0.2234 0.2703 0.02626 2022 10 23 59875 0.2218 0.2691 0.02566 2022 10 24 59876 0.2202 0.2678 0.02491 2022 10 25 59877 0.2186 0.2666 0.02410 2022 10 26 59878 0.2169 0.2654 0.02335 2022 10 27 59879 0.2152 0.2642 0.02278 2022 10 28 59880 0.2135 0.2631 0.02245 2022 10 29 59881 0.2118 0.2620 0.02236 2022 10 30 59882 0.2101 0.2609 0.02245 2022 10 31 59883 0.2083 0.2598 0.02260 2022 11 1 59884 0.2065 0.2588 0.02269 2022 11 2 59885 0.2047 0.2578 0.02262 2022 11 3 59886 0.2029 0.2568 0.02235 2022 11 4 59887 0.2011 0.2558 0.02189 2022 11 5 59888 0.1992 0.2549 0.02130 2022 11 6 59889 0.1974 0.2540 0.02069 2022 11 7 59890 0.1955 0.2531 0.02017 2022 11 8 59891 0.1936 0.2523 0.01982 2022 11 9 59892 0.1917 0.2515 0.01971 2022 11 10 59893 0.1897 0.2507 0.01985 2022 11 11 59894 0.1878 0.2499 0.02019 2022 11 12 59895 0.1859 0.2492 0.02068 2022 11 13 59896 0.1839 0.2485 0.02126 2022 11 14 59897 0.1819 0.2479 0.02182 2022 11 15 59898 0.1799 0.2472 0.02231 2022 11 16 59899 0.1779 0.2466 0.02266 2022 11 17 59900 0.1759 0.2460 0.02283 2022 11 18 59901 0.1739 0.2455 0.02280 2022 11 19 59902 0.1719 0.2450 0.02261 2022 11 20 59903 0.1699 0.2445 0.02229 2022 11 21 59904 0.1678 0.2440 0.02194 2022 11 22 59905 0.1658 0.2436 0.02166 2022 11 23 59906 0.1637 0.2432 0.02155 2022 11 24 59907 0.1617 0.2429 0.02165 2022 11 25 59908 0.1596 0.2426 0.02196 2022 11 26 59909 0.1575 0.2423 0.02243 2022 11 27 59910 0.1555 0.2420 0.02295 2022 11 28 59911 0.1534 0.2418 0.02337 2022 11 29 59912 0.1513 0.2416 0.02361 2022 11 30 59913 0.1492 0.2414 0.02361 2022 12 1 59914 0.1471 0.2413 0.02341 2022 12 2 59915 0.1450 0.2412 0.02310 2022 12 3 59916 0.1429 0.2411 0.02279 2022 12 4 59917 0.1409 0.2410 0.02259 2022 12 5 59918 0.1388 0.2410 0.02261 2022 12 6 59919 0.1367 0.2410 0.02279 2022 12 7 59920 0.1346 0.2411 0.02321 2022 12 8 59921 0.1325 0.2412 0.02373 2022 12 9 59922 0.1304 0.2413 0.02448 2022 12 10 59923 0.1283 0.2415 0.02533 2022 12 11 59924 0.1263 0.2416 0.02621 2022 12 12 59925 0.1242 0.2419 0.02698 2022 12 13 59926 0.1221 0.2421 0.02764 2022 12 14 59927 0.1201 0.2424 0.02807 2022 12 15 59928 0.1180 0.2427 0.02834 2022 12 16 59929 0.1160 0.2430 0.02841 2022 12 17 59930 0.1139 0.2434 0.02839 2022 12 18 59931 0.1119 0.2438 0.02825 2022 12 19 59932 0.1099 0.2442 0.02809 2022 12 20 59933 0.1078 0.2447 0.02800 2022 12 21 59934 0.1058 0.2452 0.02806 2022 12 22 59935 0.1038 0.2457 0.02831 2022 12 23 59936 0.1018 0.2462 0.02867 2022 12 24 59937 0.0999 0.2468 0.02922 2022 12 25 59938 0.0979 0.2474 0.02973 2022 12 26 59939 0.0959 0.2481 0.03007 2022 12 27 59940 0.0940 0.2488 0.03023 2022 12 28 59941 0.0921 0.2495 0.03014 2022 12 29 59942 0.0902 0.2502 0.03000 2022 12 30 59943 0.0883 0.2510 0.02976 2022 12 31 59944 0.0864 0.2517 0.02961 2023 1 1 59945 0.0845 0.2526 0.02958 2023 1 2 59946 0.0826 0.2534 0.02980 2023 1 3 59947 0.0808 0.2543 0.03024 2023 1 4 59948 0.0790 0.2552 0.03084 2023 1 5 59949 0.0772 0.2561 0.03159 2023 1 6 59950 0.0754 0.2571 0.03247 2023 1 7 59951 0.0736 0.2581 0.03336 2023 1 8 59952 0.0719 0.2591 0.03415 2023 1 9 59953 0.0701 0.2601 0.03482 2023 1 10 59954 0.0684 0.2612 0.03529 2023 1 11 59955 0.0667 0.2623 0.03555 2023 1 12 59956 0.0651 0.2634 0.03564 2023 1 13 59957 0.0634 0.2645 0.03560 2023 1 14 59958 0.0618 0.2657 0.03540 2023 1 15 59959 0.0602 0.2669 0.03519 2023 1 16 59960 0.0586 0.2681 0.03498 2023 1 17 59961 0.0570 0.2693 0.03484 2023 1 18 59962 0.0555 0.2706 0.03482 2023 1 19 59963 0.0540 0.2719 0.03491 2023 1 20 59964 0.0525 0.2732 0.03505 2023 1 21 59965 0.0510 0.2745 0.03522 2023 1 22 59966 0.0496 0.2758 0.03525 2023 1 23 59967 0.0482 0.2772 0.03502 2023 1 24 59968 0.0468 0.2786 0.03452 2023 1 25 59969 0.0454 0.2800 0.03380 2023 1 26 59970 0.0441 0.2815 0.03300 2023 1 27 59971 0.0428 0.2829 0.03221 2023 1 28 59972 0.0415 0.2844 0.03159 2023 1 29 59973 0.0402 0.2859 0.03116 2023 1 30 59974 0.0390 0.2874 0.03098 2023 1 31 59975 0.0378 0.2889 0.03102 2023 2 1 59976 0.0367 0.2905 0.03113 2023 2 2 59977 0.0355 0.2920 0.03134 2023 2 3 59978 0.0344 0.2936 0.03160 2023 2 4 59979 0.0333 0.2952 0.03182 2023 2 5 59980 0.0323 0.2968 0.03189 2023 2 6 59981 0.0312 0.2985 0.03183 2023 2 7 59982 0.0302 0.3001 0.03168 2023 2 8 59983 0.0293 0.3018 0.03140 2023 2 9 59984 0.0283 0.3034 0.03094 2023 2 10 59985 0.0274 0.3051 0.03042 2023 2 11 59986 0.0266 0.3068 0.02991 2023 2 12 59987 0.0257 0.3086 0.02946 2023 2 13 59988 0.0249 0.3103 0.02919 2023 2 14 59989 0.0242 0.3120 0.02905 2023 2 15 59990 0.0234 0.3138 0.02910 2023 2 16 59991 0.0227 0.3155 0.02930 2023 2 17 59992 0.0220 0.3173 0.02961 2023 2 18 59993 0.0214 0.3191 0.02985 2023 2 19 59994 0.0208 0.3209 0.02988 2023 2 20 59995 0.0202 0.3227 0.02960 2023 2 21 59996 0.0196 0.3245 0.02914 2023 2 22 59997 0.0191 0.3263 0.02843 2023 2 23 59998 0.0187 0.3281 0.02765 2023 2 24 59999 0.0182 0.3300 0.02698 2023 2 25 60000 0.0178 0.3318 0.02652 2023 2 26 60001 0.0174 0.3336 0.02638 2023 2 27 60002 0.0171 0.3355 0.02643 2023 2 28 60003 0.0168 0.3373 0.02675 2023 3 1 60004 0.0165 0.3392 0.02725 2023 3 2 60005 0.0162 0.3411 0.02777 2023 3 3 60006 0.0160 0.3429 0.02817 2023 3 4 60007 0.0159 0.3448 0.02846 2023 3 5 60008 0.0157 0.3466 0.02851 2023 3 6 60009 0.0156 0.3485 0.02831 2023 3 7 60010 0.0155 0.3504 0.02793 2023 3 8 60011 0.0155 0.3523 0.02733 2023 3 9 60012 0.0155 0.3541 0.02657 2023 3 10 60013 0.0155 0.3560 0.02579 2023 3 11 60014 0.0156 0.3579 0.02501 2023 3 12 60015 0.0157 0.3597 0.02438 2023 3 13 60016 0.0158 0.3616 0.02383 2023 3 14 60017 0.0160 0.3635 0.02347 2023 3 15 60018 0.0162 0.3653 0.02332 2023 3 16 60019 0.0164 0.3672 0.02322 2023 3 17 60020 0.0167 0.3690 0.02313 2023 3 18 60021 0.0170 0.3709 0.02284 2023 3 19 60022 0.0173 0.3727 0.02230 2023 3 20 60023 0.0177 0.3746 0.02148 2023 3 21 60024 0.0181 0.3764 0.02036 2023 3 22 60025 0.0186 0.3782 0.01910 2023 3 23 60026 0.0190 0.3800 0.01786 2023 3 24 60027 0.0195 0.3819 0.01673 2023 3 25 60028 0.0201 0.3837 0.01584 2023 3 26 60029 0.0206 0.3854 0.01527 2023 3 27 60030 0.0212 0.3872 0.01497 2023 3 28 60031 0.0219 0.3890 0.01487 2023 3 29 60032 0.0225 0.3908 0.01488 2023 3 30 60033 0.0232 0.3925 0.01488 2023 3 31 60034 0.0240 0.3943 0.01476 2023 4 1 60035 0.0247 0.3960 0.01447 2023 4 2 60036 0.0255 0.3977 0.01401 2023 4 3 60037 0.0263 0.3994 0.01340 2023 4 4 60038 0.0272 0.4011 0.01261 2023 4 5 60039 0.0281 0.4028 0.01169 2023 4 6 60040 0.0290 0.4044 0.01069 2023 4 7 60041 0.0299 0.4061 0.00970 2023 4 8 60042 0.0309 0.4077 0.00868 2023 4 9 60043 0.0319 0.4094 0.00792 2023 4 10 60044 0.0329 0.4110 0.00735 2023 4 11 60045 0.0340 0.4125 0.00702 2023 4 12 60046 0.0351 0.4141 0.00680 2023 4 13 60047 0.0362 0.4157 0.00664 2023 4 14 60048 0.0373 0.4172 0.00644 2023 4 15 60049 0.0385 0.4187 0.00608 2023 4 16 60050 0.0397 0.4202 0.00554 2023 4 17 60051 0.0409 0.4217 0.00469 2023 4 18 60052 0.0422 0.4232 0.00376 2023 4 19 60053 0.0435 0.4246 0.00286 2023 4 20 60054 0.0448 0.4260 0.00208 2023 4 21 60055 0.0461 0.4274 0.00149 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) 59671 -106.46 0.64 -8.25 0.10 59672 -106.49 0.62 -8.27 0.08 59673 -106.62 0.62 -8.39 0.08 59674 -106.81 0.60 -8.52 0.02 59675 -106.90 0.63 -8.59 0.04 59676 -106.81 0.63 -8.60 0.04 59677 -106.52 0.63 -8.65 0.04 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59671 0.270 0.253 -0.083 0.096 59672 0.269 0.248 -0.073 0.079 59673 0.268 0.248 -0.062 0.079 59674 0.268 0.237 -0.052 0.023 59675 0.271 0.249 -0.046 0.044 59676 0.278 0.249 -0.043 0.044 59677 0.286 0.249 -0.041 0.044