********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 17 March 2022 Vol. XXXV No. 011 ______________________________________________________________________ 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 3 11 59649 0.03369 .00009 0.39208 .00009 -0.102304 0.000029 22 3 12 59650 0.03415 .00009 0.39369 .00009 -0.101652 0.000029 22 3 13 59651 0.03442 .00009 0.39518 .00009 -0.101009 0.000038 22 3 14 59652 0.03439 .00009 0.39664 .00009 -0.100351 0.000036 22 3 15 59653 0.03423 .00009 0.39806 .00009 -0.099798 0.000026 22 3 16 59654 0.03393 .00009 0.39959 .00009 -0.099473 0.000020 22 3 17 59655 0.03345 .00009 0.40125 .00009 -0.099393 0.000008 _______________________________________________________________________ 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 = 0.1426 - 0.1021 cos A + 0.0192 sin A - 0.0097 cos C + 0.0316 sin C y = 0.3540 + 0.0170 cos A + 0.0938 sin A + 0.0316 cos C + 0.0097 sin C UT1-UTC = -0.0747 + 0.00023 (MJD - 59663) - (UT2-UT1) where A = 2*pi*(MJD-59655)/365.25 and C = 2*pi*(MJD-59655)/435. TAI-UTC(MJD 59656) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59655)**0.80 S t = 0.00025 (MJD-59655)**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 3 18 59656 0.0332 0.4028 -0.09952 2022 3 19 59657 0.0332 0.4045 -0.09982 2022 3 20 59658 0.0335 0.4062 -0.10020 2022 3 21 59659 0.0339 0.4079 -0.10054 2022 3 22 59660 0.0345 0.4096 -0.10071 2022 3 23 59661 0.0352 0.4113 -0.10066 2022 3 24 59662 0.0358 0.4130 -0.10040 2022 3 25 59663 0.0365 0.4147 -0.09997 2022 3 26 59664 0.0372 0.4163 -0.09946 2022 3 27 59665 0.0379 0.4179 -0.09898 2022 3 28 59666 0.0387 0.4194 -0.09864 2022 3 29 59667 0.0395 0.4209 -0.09850 2022 3 30 59668 0.0404 0.4223 -0.09858 2022 3 31 59669 0.0414 0.4238 -0.09882 2022 4 1 59670 0.0424 0.4252 -0.09915 2022 4 2 59671 0.0435 0.4266 -0.09947 2022 4 3 59672 0.0447 0.4280 -0.09968 2022 4 4 59673 0.0459 0.4294 -0.09974 2022 4 5 59674 0.0471 0.4307 -0.09961 2022 4 6 59675 0.0485 0.4321 -0.09932 2022 4 7 59676 0.0498 0.4334 -0.09887 2022 4 8 59677 0.0512 0.4347 -0.09834 2022 4 9 59678 0.0525 0.4359 -0.09778 2022 4 10 59679 0.0539 0.4372 -0.09728 2022 4 11 59680 0.0553 0.4384 -0.09689 2022 4 12 59681 0.0567 0.4396 -0.09668 2022 4 13 59682 0.0582 0.4408 -0.09670 2022 4 14 59683 0.0596 0.4419 -0.09695 2022 4 15 59684 0.0611 0.4430 -0.09741 2022 4 16 59685 0.0626 0.4442 -0.09797 2022 4 17 59686 0.0642 0.4453 -0.09854 2022 4 18 59687 0.0658 0.4464 -0.09898 2022 4 19 59688 0.0673 0.4474 -0.09919 2022 4 20 59689 0.0689 0.4485 -0.09914 2022 4 21 59690 0.0706 0.4495 -0.09886 2022 4 22 59691 0.0722 0.4505 -0.09848 2022 4 23 59692 0.0739 0.4515 -0.09810 2022 4 24 59693 0.0755 0.4525 -0.09784 2022 4 25 59694 0.0772 0.4534 -0.09777 2022 4 26 59695 0.0789 0.4544 -0.09789 2022 4 27 59696 0.0806 0.4553 -0.09819 2022 4 28 59697 0.0824 0.4561 -0.09858 2022 4 29 59698 0.0841 0.4570 -0.09899 2022 4 30 59699 0.0859 0.4578 -0.09931 2022 5 1 59700 0.0877 0.4586 -0.09948 2022 5 2 59701 0.0895 0.4594 -0.09947 2022 5 3 59702 0.0913 0.4601 -0.09926 2022 5 4 59703 0.0931 0.4608 -0.09888 2022 5 5 59704 0.0950 0.4615 -0.09837 2022 5 6 59705 0.0968 0.4622 -0.09780 2022 5 7 59706 0.0987 0.4628 -0.09723 2022 5 8 59707 0.1006 0.4634 -0.09675 2022 5 9 59708 0.1025 0.4640 -0.09642 2022 5 10 59709 0.1044 0.4646 -0.09628 2022 5 11 59710 0.1063 0.4651 -0.09636 2022 5 12 59711 0.1082 0.4656 -0.09666 2022 5 13 59712 0.1102 0.4661 -0.09713 2022 5 14 59713 0.1121 0.4665 -0.09765 2022 5 15 59714 0.1141 0.4669 -0.09811 2022 5 16 59715 0.1160 0.4673 -0.09837 2022 5 17 59716 0.1180 0.4677 -0.09836 2022 5 18 59717 0.1200 0.4680 -0.09809 2022 5 19 59718 0.1220 0.4683 -0.09763 2022 5 20 59719 0.1240 0.4685 -0.09712 2022 5 21 59720 0.1260 0.4688 -0.09668 2022 5 22 59721 0.1280 0.4690 -0.09640 2022 5 23 59722 0.1300 0.4691 -0.09629 2022 5 24 59723 0.1320 0.4693 -0.09632 2022 5 25 59724 0.1340 0.4694 -0.09643 2022 5 26 59725 0.1360 0.4695 -0.09653 2022 5 27 59726 0.1380 0.4695 -0.09654 2022 5 28 59727 0.1401 0.4696 -0.09639 2022 5 29 59728 0.1421 0.4696 -0.09604 2022 5 30 59729 0.1441 0.4695 -0.09547 2022 5 31 59730 0.1461 0.4695 -0.09470 2022 6 1 59731 0.1482 0.4694 -0.09377 2022 6 2 59732 0.1502 0.4692 -0.09274 2022 6 3 59733 0.1522 0.4691 -0.09167 2022 6 4 59734 0.1542 0.4689 -0.09064 2022 6 5 59735 0.1562 0.4687 -0.08972 2022 6 6 59736 0.1582 0.4684 -0.08896 2022 6 7 59737 0.1603 0.4681 -0.08839 2022 6 8 59738 0.1623 0.4678 -0.08800 2022 6 9 59739 0.1643 0.4675 -0.08778 2022 6 10 59740 0.1663 0.4671 -0.08766 2022 6 11 59741 0.1682 0.4667 -0.08752 2022 6 12 59742 0.1702 0.4663 -0.08724 2022 6 13 59743 0.1722 0.4658 -0.08673 2022 6 14 59744 0.1742 0.4654 -0.08595 2022 6 15 59745 0.1761 0.4648 -0.08495 2022 6 16 59746 0.1781 0.4643 -0.08385 2022 6 17 59747 0.1800 0.4637 -0.08279 2022 6 18 59748 0.1819 0.4631 -0.08188 2022 6 19 59749 0.1838 0.4625 -0.08117 2022 6 20 59750 0.1857 0.4618 -0.08063 2022 6 21 59751 0.1876 0.4611 -0.08018 2022 6 22 59752 0.1895 0.4604 -0.07974 2022 6 23 59753 0.1914 0.4597 -0.07921 2022 6 24 59754 0.1932 0.4589 -0.07853 2022 6 25 59755 0.1951 0.4581 -0.07766 2022 6 26 59756 0.1969 0.4573 -0.07658 2022 6 27 59757 0.1987 0.4564 -0.07531 2022 6 28 59758 0.2005 0.4555 -0.07387 2022 6 29 59759 0.2023 0.4546 -0.07231 2022 6 30 59760 0.2041 0.4537 -0.07072 2022 7 1 59761 0.2058 0.4527 -0.06916 2022 7 2 59762 0.2075 0.4517 -0.06770 2022 7 3 59763 0.2092 0.4507 -0.06639 2022 7 4 59764 0.2109 0.4496 -0.06524 2022 7 5 59765 0.2126 0.4486 -0.06427 2022 7 6 59766 0.2143 0.4475 -0.06348 2022 7 7 59767 0.2159 0.4463 -0.06280 2022 7 8 59768 0.2175 0.4452 -0.06216 2022 7 9 59769 0.2191 0.4440 -0.06145 2022 7 10 59770 0.2207 0.4428 -0.06057 2022 7 11 59771 0.2222 0.4416 -0.05947 2022 7 12 59772 0.2238 0.4404 -0.05814 2022 7 13 59773 0.2253 0.4391 -0.05669 2022 7 14 59774 0.2268 0.4378 -0.05525 2022 7 15 59775 0.2282 0.4365 -0.05396 2022 7 16 59776 0.2297 0.4352 -0.05290 2022 7 17 59777 0.2311 0.4338 -0.05207 2022 7 18 59778 0.2325 0.4325 -0.05140 2022 7 19 59779 0.2338 0.4311 -0.05078 2022 7 20 59780 0.2352 0.4296 -0.05011 2022 7 21 59781 0.2365 0.4282 -0.04930 2022 7 22 59782 0.2378 0.4267 -0.04830 2022 7 23 59783 0.2390 0.4253 -0.04711 2022 7 24 59784 0.2403 0.4238 -0.04572 2022 7 25 59785 0.2415 0.4223 -0.04419 2022 7 26 59786 0.2426 0.4207 -0.04255 2022 7 27 59787 0.2438 0.4192 -0.04087 2022 7 28 59788 0.2449 0.4176 -0.03922 2022 7 29 59789 0.2460 0.4160 -0.03768 2022 7 30 59790 0.2471 0.4144 -0.03630 2022 7 31 59791 0.2481 0.4128 -0.03512 2022 8 1 59792 0.2491 0.4112 -0.03414 2022 8 2 59793 0.2501 0.4095 -0.03334 2022 8 3 59794 0.2510 0.4079 -0.03267 2022 8 4 59795 0.2519 0.4062 -0.03206 2022 8 5 59796 0.2528 0.4045 -0.03140 2022 8 6 59797 0.2537 0.4028 -0.03063 2022 8 7 59798 0.2545 0.4011 -0.02966 2022 8 8 59799 0.2553 0.3993 -0.02850 2022 8 9 59800 0.2560 0.3976 -0.02721 2022 8 10 59801 0.2568 0.3958 -0.02589 2022 8 11 59802 0.2575 0.3941 -0.02469 2022 8 12 59803 0.2581 0.3923 -0.02373 2022 8 13 59804 0.2588 0.3905 -0.02304 2022 8 14 59805 0.2594 0.3887 -0.02259 2022 8 15 59806 0.2599 0.3869 -0.02228 2022 8 16 59807 0.2605 0.3851 -0.02197 2022 8 17 59808 0.2610 0.3832 -0.02156 2022 8 18 59809 0.2614 0.3814 -0.02097 2022 8 19 59810 0.2619 0.3796 -0.02017 2022 8 20 59811 0.2622 0.3777 -0.01919 2022 8 21 59812 0.2626 0.3759 -0.01804 2022 8 22 59813 0.2629 0.3740 -0.01678 2022 8 23 59814 0.2632 0.3722 -0.01548 2022 8 24 59815 0.2635 0.3703 -0.01421 2022 8 25 59816 0.2637 0.3684 -0.01304 2022 8 26 59817 0.2639 0.3665 -0.01203 2022 8 27 59818 0.2641 0.3647 -0.01123 2022 8 28 59819 0.2642 0.3628 -0.01066 2022 8 29 59820 0.2643 0.3609 -0.01028 2022 8 30 59821 0.2644 0.3590 -0.01005 2022 8 31 59822 0.2644 0.3571 -0.00990 2022 9 1 59823 0.2644 0.3552 -0.00971 2022 9 2 59824 0.2643 0.3533 -0.00941 2022 9 3 59825 0.2642 0.3515 -0.00893 2022 9 4 59826 0.2641 0.3496 -0.00825 2022 9 5 59827 0.2640 0.3477 -0.00743 2022 9 6 59828 0.2638 0.3458 -0.00655 2022 9 7 59829 0.2636 0.3439 -0.00575 2022 9 8 59830 0.2633 0.3421 -0.00514 2022 9 9 59831 0.2630 0.3402 -0.00480 2022 9 10 59832 0.2627 0.3383 -0.00474 2022 9 11 59833 0.2624 0.3364 -0.00487 2022 9 12 59834 0.2620 0.3346 -0.00508 2022 9 13 59835 0.2615 0.3327 -0.00522 2022 9 14 59836 0.2611 0.3309 -0.00520 2022 9 15 59837 0.2606 0.3290 -0.00495 2022 9 16 59838 0.2601 0.3272 -0.00448 2022 9 17 59839 0.2595 0.3254 -0.00379 2022 9 18 59840 0.2589 0.3236 -0.00295 2022 9 19 59841 0.2583 0.3218 -0.00200 2022 9 20 59842 0.2576 0.3200 -0.00103 2022 9 21 59843 0.2570 0.3182 -0.00011 2022 9 22 59844 0.2562 0.3164 0.00071 2022 9 23 59845 0.2555 0.3146 0.00135 2022 9 24 59846 0.2547 0.3129 0.00179 2022 9 25 59847 0.2539 0.3111 0.00202 2022 9 26 59848 0.2530 0.3094 0.00207 2022 9 27 59849 0.2521 0.3077 0.00201 2022 9 28 59850 0.2512 0.3059 0.00194 2022 9 29 59851 0.2503 0.3042 0.00197 2022 9 30 59852 0.2493 0.3026 0.00218 2022 10 1 59853 0.2483 0.3009 0.00259 2022 10 2 59854 0.2473 0.2992 0.00318 2022 10 3 59855 0.2462 0.2976 0.00385 2022 10 4 59856 0.2451 0.2960 0.00449 2022 10 5 59857 0.2440 0.2944 0.00497 2022 10 6 59858 0.2428 0.2928 0.00521 2022 10 7 59859 0.2417 0.2912 0.00516 2022 10 8 59860 0.2405 0.2897 0.00488 2022 10 9 59861 0.2392 0.2881 0.00446 2022 10 10 59862 0.2380 0.2866 0.00401 2022 10 11 59863 0.2367 0.2851 0.00366 2022 10 12 59864 0.2353 0.2836 0.00349 2022 10 13 59865 0.2340 0.2822 0.00353 2022 10 14 59866 0.2326 0.2807 0.00376 2022 10 15 59867 0.2312 0.2793 0.00415 2022 10 16 59868 0.2298 0.2779 0.00463 2022 10 17 59869 0.2284 0.2766 0.00515 2022 10 18 59870 0.2269 0.2752 0.00563 2022 10 19 59871 0.2254 0.2739 0.00603 2022 10 20 59872 0.2239 0.2726 0.00630 2022 10 21 59873 0.2223 0.2713 0.00638 2022 10 22 59874 0.2208 0.2700 0.00625 2022 10 23 59875 0.2192 0.2688 0.00592 2022 10 24 59876 0.2176 0.2675 0.00548 2022 10 25 59877 0.2159 0.2664 0.00500 2022 10 26 59878 0.2143 0.2652 0.00459 2022 10 27 59879 0.2126 0.2640 0.00434 2022 10 28 59880 0.2109 0.2629 0.00435 2022 10 29 59881 0.2092 0.2618 0.00456 2022 10 30 59882 0.2074 0.2608 0.00485 2022 10 31 59883 0.2057 0.2597 0.00516 2022 11 1 59884 0.2039 0.2587 0.00531 2022 11 2 59885 0.2021 0.2577 0.00524 2022 11 3 59886 0.2003 0.2568 0.00492 2022 11 4 59887 0.1985 0.2558 0.00444 2022 11 5 59888 0.1967 0.2549 0.00375 2022 11 6 59889 0.1948 0.2540 0.00306 2022 11 7 59890 0.1929 0.2532 0.00241 2022 11 8 59891 0.1910 0.2524 0.00186 2022 11 9 59892 0.1891 0.2516 0.00146 2022 11 10 59893 0.1872 0.2508 0.00120 2022 11 11 59894 0.1853 0.2501 0.00104 2022 11 12 59895 0.1834 0.2494 0.00106 2022 11 13 59896 0.1814 0.2487 0.00113 2022 11 14 59897 0.1794 0.2480 0.00120 2022 11 15 59898 0.1775 0.2474 0.00120 2022 11 16 59899 0.1755 0.2468 0.00109 2022 11 17 59900 0.1735 0.2463 0.00083 2022 11 18 59901 0.1715 0.2457 0.00036 2022 11 19 59902 0.1695 0.2452 -0.00028 2022 11 20 59903 0.1674 0.2448 -0.00109 2022 11 21 59904 0.1654 0.2443 -0.00197 2022 11 22 59905 0.1634 0.2439 -0.00282 2022 11 23 59906 0.1613 0.2435 -0.00359 2022 11 24 59907 0.1593 0.2432 -0.00417 2022 11 25 59908 0.1572 0.2429 -0.00448 2022 11 26 59909 0.1552 0.2426 -0.00462 2022 11 27 59910 0.1531 0.2423 -0.00473 2022 11 28 59911 0.1510 0.2421 -0.00486 2022 11 29 59912 0.1490 0.2419 -0.00509 2022 11 30 59913 0.1469 0.2418 -0.00548 2022 12 1 59914 0.1448 0.2416 -0.00608 2022 12 2 59915 0.1427 0.2416 -0.00678 2022 12 3 59916 0.1406 0.2415 -0.00744 2022 12 4 59917 0.1386 0.2415 -0.00800 2022 12 5 59918 0.1365 0.2414 -0.00835 2022 12 6 59919 0.1344 0.2415 -0.00852 2022 12 7 59920 0.1323 0.2415 -0.00847 2022 12 8 59921 0.1303 0.2416 -0.00824 2022 12 9 59922 0.1282 0.2418 -0.00776 2022 12 10 59923 0.1261 0.2419 -0.00719 2022 12 11 59924 0.1241 0.2421 -0.00657 2022 12 12 59925 0.1220 0.2423 -0.00604 2022 12 13 59926 0.1200 0.2426 -0.00546 2022 12 14 59927 0.1179 0.2428 -0.00506 2022 12 15 59928 0.1159 0.2431 -0.00489 2022 12 16 59929 0.1138 0.2435 -0.00490 2022 12 17 59930 0.1118 0.2439 -0.00505 2022 12 18 59931 0.1098 0.2443 -0.00523 2022 12 19 59932 0.1078 0.2447 -0.00549 2022 12 20 59933 0.1058 0.2452 -0.00558 2022 12 21 59934 0.1038 0.2456 -0.00546 2022 12 22 59935 0.1018 0.2462 -0.00515 2022 12 23 59936 0.0998 0.2467 -0.00472 2022 12 24 59937 0.0979 0.2473 -0.00421 2022 12 25 59938 0.0959 0.2479 -0.00382 2022 12 26 59939 0.0940 0.2486 -0.00365 2022 12 27 59940 0.0920 0.2492 -0.00370 2022 12 28 59941 0.0901 0.2499 -0.00403 2022 12 29 59942 0.0882 0.2507 -0.00455 2022 12 30 59943 0.0864 0.2514 -0.00509 2022 12 31 59944 0.0845 0.2522 -0.00559 2023 1 1 59945 0.0826 0.2530 -0.00590 2023 1 2 59946 0.0808 0.2539 -0.00609 2023 1 3 59947 0.0790 0.2547 -0.00606 2023 1 4 59948 0.0772 0.2556 -0.00580 2023 1 5 59949 0.0754 0.2566 -0.00543 2023 1 6 59950 0.0736 0.2575 -0.00491 2023 1 7 59951 0.0719 0.2585 -0.00438 2023 1 8 59952 0.0701 0.2595 -0.00389 2023 1 9 59953 0.0684 0.2605 -0.00345 2023 1 10 59954 0.0667 0.2616 -0.00321 2023 1 11 59955 0.0651 0.2627 -0.00315 2023 1 12 59956 0.0634 0.2638 -0.00329 2023 1 13 59957 0.0618 0.2649 -0.00362 2023 1 14 59958 0.0602 0.2661 -0.00407 2023 1 15 59959 0.0586 0.2673 -0.00452 2023 1 16 59960 0.0570 0.2685 -0.00490 2023 1 17 59961 0.0555 0.2697 -0.00514 2023 1 18 59962 0.0540 0.2710 -0.00516 2023 1 19 59963 0.0525 0.2723 -0.00501 2023 1 20 59964 0.0510 0.2736 -0.00479 2023 1 21 59965 0.0496 0.2749 -0.00460 2023 1 22 59966 0.0482 0.2762 -0.00455 2023 1 23 59967 0.0468 0.2776 -0.00471 2023 1 24 59968 0.0454 0.2790 -0.00514 2023 1 25 59969 0.0441 0.2804 -0.00581 2023 1 26 59970 0.0428 0.2818 -0.00660 2023 1 27 59971 0.0415 0.2833 -0.00734 2023 1 28 59972 0.0402 0.2847 -0.00809 2023 1 29 59973 0.0390 0.2862 -0.00853 2023 1 30 59974 0.0378 0.2877 -0.00878 2023 1 31 59975 0.0366 0.2893 -0.00877 2023 2 1 59976 0.0355 0.2908 -0.00862 2023 2 2 59977 0.0344 0.2924 -0.00833 2023 2 3 59978 0.0333 0.2939 -0.00793 2023 2 4 59979 0.0322 0.2955 -0.00751 2023 2 5 59980 0.0312 0.2971 -0.00709 2023 2 6 59981 0.0302 0.2988 -0.00688 2023 2 7 59982 0.0292 0.3004 -0.00675 2023 2 8 59983 0.0283 0.3021 -0.00674 2023 2 9 59984 0.0274 0.3037 -0.00689 2023 2 10 59985 0.0265 0.3054 -0.00718 2023 2 11 59986 0.0257 0.3071 -0.00746 2023 2 12 59987 0.0249 0.3088 -0.00764 2023 2 13 59988 0.0241 0.3106 -0.00770 2023 2 14 59989 0.0234 0.3123 -0.00757 2023 2 15 59990 0.0227 0.3140 -0.00730 2023 2 16 59991 0.0220 0.3158 -0.00696 2023 2 17 59992 0.0213 0.3176 -0.00660 2023 2 18 59993 0.0207 0.3193 -0.00634 2023 2 19 59994 0.0201 0.3211 -0.00634 2023 2 20 59995 0.0196 0.3229 -0.00668 2023 2 21 59996 0.0191 0.3247 -0.00733 2023 2 22 59997 0.0186 0.3265 -0.00805 2023 2 23 59998 0.0182 0.3284 -0.00882 2023 2 24 59999 0.0177 0.3302 -0.00953 2023 2 25 60000 0.0174 0.3320 -0.01016 2023 2 26 60001 0.0170 0.3339 -0.01049 2023 2 27 60002 0.0167 0.3357 -0.01059 2023 2 28 60003 0.0164 0.3376 -0.01054 2023 3 1 60004 0.0162 0.3394 -0.01030 2023 3 2 60005 0.0160 0.3413 -0.01002 2023 3 3 60006 0.0158 0.3431 -0.00972 2023 3 4 60007 0.0157 0.3450 -0.00947 2023 3 5 60008 0.0156 0.3469 -0.00931 2023 3 6 60009 0.0155 0.3487 -0.00931 2023 3 7 60010 0.0155 0.3506 -0.00945 2023 3 8 60011 0.0155 0.3525 -0.00983 2023 3 9 60012 0.0155 0.3543 -0.01031 2023 3 10 60013 0.0156 0.3562 -0.01084 2023 3 11 60014 0.0157 0.3581 -0.01140 2023 3 12 60015 0.0158 0.3599 -0.01182 2023 3 13 60016 0.0160 0.3618 -0.01214 2023 3 14 60017 0.0162 0.3637 -0.01221 2023 3 15 60018 0.0164 0.3655 -0.01201 2023 3 16 60019 0.0167 0.3674 -0.01169 2023 3 17 60020 0.0170 0.3692 -0.01138 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) 59633 -109.09 0.45 -6.62 0.14 59634 -109.25 0.45 -6.60 0.14 59635 -109.23 0.45 -6.69 0.14 59636 -109.05 0.46 -6.85 0.19 59637 -108.80 0.42 -7.01 0.15 59638 -108.57 0.42 -7.10 0.15 59639 -108.42 0.39 -7.12 0.10 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59633 0.177 0.180 -0.163 0.144 59634 0.180 0.180 -0.160 0.144 59635 0.183 0.180 -0.159 0.144 59636 0.184 0.184 -0.156 0.193 59637 0.180 0.169 -0.149 0.153 59638 0.172 0.169 -0.141 0.153 59639 0.164 0.154 -0.131 0.104