********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 20 January 2022 Vol. XXXV No. 003 ______________________________________________________________________ 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 = -0.1 seconds beginning 17 July 2021 at 0000 UTC Beginning 1 January 2017: TAI-UTC = 37.000 000 seconds *********************************************************************** * * * There will NOT be a leap second introduced * * in UTC at the end of June 2022 * * * * The US Naval Observatory's Rapid Service/Prediction Center website * * (maia.usno.navy.mil) must undergo modernization and has been * * offline since 24 October 2019. The expected completion of work and * * return of service will be no earlier than Summer of 2021. * * * * Although the Bulletin A makes several references to maia, the * * paragraph above supersedes any information contained in the * * Bulletin A text. * * * * Updated EOPs are available at NASA's Archive of Space Geodesy Data: * * https://cddis.nasa.gov/archive/products/iers * * ftps://gdc.cddis.eosdis.nasa.gov/products/iers * * Daily EOP data may be available here by 18:00 UTC, and Bulletin A * * EOP data may be available by 20:00 UTC. * * For additional information on accessing CDDIS, please refer to: * * https://cddis.nasa.gov/About/CDDIS_File_Download_FAQ.html * * * * 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. * * * * Users should verify results obtained from these sites; we cannot * * guarantee the integrity or timeliness of files provided at * * third-party sites. * * * * Questions and enquiries about EOPs can be emailed to the * * following address: * * usn.ncr.navobsydc.mbx.eopcp@mail.mil * * Due to ongoing email issues, please CC * * navobsy_eop.fct@navy.mil * * until further notice. * * * * 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 1 14 59593 0.04317 .00009 0.29591 .00009 -0.111600 0.000019 22 1 15 59594 0.04300 .00009 0.29784 .00009 -0.111109 0.000019 22 1 16 59595 0.04247 .00009 0.29979 .00009 -0.110570 0.000017 22 1 17 59596 0.04142 .00009 0.30146 .00009 -0.109998 0.000024 22 1 18 59597 0.03994 .00009 0.30288 .00009 -0.109337 0.000026 22 1 19 59598 0.03860 .00009 0.30399 .00009 -0.108799 0.000025 22 1 20 59599 0.03786 .00009 0.30504 .00009 -0.108345 0.000024 _______________________________________________________________________ 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 = 0.1363 - 0.0702 cos A - 0.0610 sin A - 0.0288 cos C + 0.0020 sin C y = 0.3565 - 0.0569 cos A + 0.0617 sin A + 0.0020 cos C + 0.0288 sin C UT1-UTC = -0.1178 + 0.00020 (MJD - 59607) - (UT2-UT1) where A = 2*pi*(MJD-59599)/365.25 and C = 2*pi*(MJD-59599)/435. TAI-UTC(MJD 59600) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59599)**0.80 S t = 0.00025 (MJD-59599)**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 1 21 59600 0.0372 0.3063 -0.10822 2022 1 22 59601 0.0366 0.3077 -0.10829 2022 1 23 59602 0.0359 0.3093 -0.10851 2022 1 24 59603 0.0351 0.3110 -0.10883 2022 1 25 59604 0.0341 0.3125 -0.10917 2022 1 26 59605 0.0330 0.3140 -0.10942 2022 1 27 59606 0.0321 0.3154 -0.10951 2022 1 28 59607 0.0314 0.3168 -0.10938 2022 1 29 59608 0.0307 0.3182 -0.10905 2022 1 30 59609 0.0300 0.3198 -0.10862 2022 1 31 59610 0.0293 0.3214 -0.10820 2022 2 1 59611 0.0286 0.3230 -0.10794 2022 2 2 59612 0.0278 0.3246 -0.10788 2022 2 3 59613 0.0271 0.3262 -0.10806 2022 2 4 59614 0.0264 0.3278 -0.10843 2022 2 5 59615 0.0258 0.3294 -0.10891 2022 2 6 59616 0.0252 0.3310 -0.10939 2022 2 7 59617 0.0247 0.3327 -0.10980 2022 2 8 59618 0.0242 0.3344 -0.11007 2022 2 9 59619 0.0237 0.3361 -0.11019 2022 2 10 59620 0.0232 0.3378 -0.11015 2022 2 11 59621 0.0228 0.3395 -0.10996 2022 2 12 59622 0.0224 0.3412 -0.10968 2022 2 13 59623 0.0220 0.3429 -0.10937 2022 2 14 59624 0.0217 0.3447 -0.10909 2022 2 15 59625 0.0215 0.3464 -0.10891 2022 2 16 59626 0.0212 0.3481 -0.10891 2022 2 17 59627 0.0210 0.3499 -0.10913 2022 2 18 59628 0.0208 0.3517 -0.10958 2022 2 19 59629 0.0207 0.3534 -0.11024 2022 2 20 59630 0.0206 0.3552 -0.11102 2022 2 21 59631 0.0205 0.3569 -0.11184 2022 2 22 59632 0.0204 0.3587 -0.11259 2022 2 23 59633 0.0204 0.3604 -0.11318 2022 2 24 59634 0.0205 0.3622 -0.11356 2022 2 25 59635 0.0205 0.3640 -0.11371 2022 2 26 59636 0.0206 0.3657 -0.11371 2022 2 27 59637 0.0207 0.3675 -0.11366 2022 2 28 59638 0.0209 0.3693 -0.11369 2022 3 1 59639 0.0210 0.3710 -0.11390 2022 3 2 59640 0.0213 0.3728 -0.11434 2022 3 3 59641 0.0215 0.3746 -0.11498 2022 3 4 59642 0.0218 0.3763 -0.11573 2022 3 5 59643 0.0221 0.3781 -0.11651 2022 3 6 59644 0.0225 0.3798 -0.11720 2022 3 7 59645 0.0228 0.3816 -0.11774 2022 3 8 59646 0.0232 0.3833 -0.11811 2022 3 9 59647 0.0237 0.3851 -0.11828 2022 3 10 59648 0.0242 0.3868 -0.11827 2022 3 11 59649 0.0247 0.3886 -0.11813 2022 3 12 59650 0.0252 0.3903 -0.11791 2022 3 13 59651 0.0258 0.3920 -0.11769 2022 3 14 59652 0.0264 0.3937 -0.11754 2022 3 15 59653 0.0270 0.3955 -0.11753 2022 3 16 59654 0.0277 0.3972 -0.11772 2022 3 17 59655 0.0284 0.3989 -0.11814 2022 3 18 59656 0.0291 0.4005 -0.11879 2022 3 19 59657 0.0299 0.4022 -0.11960 2022 3 20 59658 0.0306 0.4039 -0.12048 2022 3 21 59659 0.0315 0.4055 -0.12131 2022 3 22 59660 0.0323 0.4072 -0.12196 2022 3 23 59661 0.0332 0.4088 -0.12239 2022 3 24 59662 0.0341 0.4105 -0.12259 2022 3 25 59663 0.0350 0.4121 -0.12260 2022 3 26 59664 0.0360 0.4137 -0.12254 2022 3 27 59665 0.0370 0.4152 -0.12251 2022 3 28 59666 0.0380 0.4168 -0.12262 2022 3 29 59667 0.0391 0.4184 -0.12294 2022 3 30 59668 0.0402 0.4199 -0.12346 2022 3 31 59669 0.0413 0.4215 -0.12415 2022 4 1 59670 0.0424 0.4230 -0.12490 2022 4 2 59671 0.0436 0.4245 -0.12563 2022 4 3 59672 0.0448 0.4260 -0.12622 2022 4 4 59673 0.0460 0.4274 -0.12664 2022 4 5 59674 0.0473 0.4289 -0.12685 2022 4 6 59675 0.0486 0.4303 -0.12686 2022 4 7 59676 0.0499 0.4317 -0.12670 2022 4 8 59677 0.0512 0.4331 -0.12643 2022 4 9 59678 0.0526 0.4345 -0.12612 2022 4 10 59679 0.0539 0.4358 -0.12584 2022 4 11 59680 0.0553 0.4372 -0.12567 2022 4 12 59681 0.0568 0.4385 -0.12568 2022 4 13 59682 0.0582 0.4398 -0.12590 2022 4 14 59683 0.0597 0.4411 -0.12636 2022 4 15 59684 0.0612 0.4423 -0.12703 2022 4 16 59685 0.0627 0.4435 -0.12781 2022 4 17 59686 0.0643 0.4448 -0.12858 2022 4 18 59687 0.0658 0.4459 -0.12922 2022 4 19 59688 0.0674 0.4471 -0.12962 2022 4 20 59689 0.0690 0.4483 -0.12975 2022 4 21 59690 0.0707 0.4494 -0.12966 2022 4 22 59691 0.0723 0.4505 -0.12944 2022 4 23 59692 0.0740 0.4515 -0.12923 2022 4 24 59693 0.0757 0.4526 -0.12912 2022 4 25 59694 0.0774 0.4536 -0.12919 2022 4 26 59695 0.0791 0.4546 -0.12946 2022 4 27 59696 0.0809 0.4556 -0.12990 2022 4 28 59697 0.0826 0.4565 -0.13043 2022 4 29 59698 0.0844 0.4575 -0.13096 2022 4 30 59699 0.0862 0.4584 -0.13140 2022 5 1 59700 0.0880 0.4592 -0.13168 2022 5 2 59701 0.0898 0.4601 -0.13176 2022 5 3 59702 0.0917 0.4609 -0.13164 2022 5 4 59703 0.0935 0.4617 -0.13134 2022 5 5 59704 0.0954 0.4624 -0.13091 2022 5 6 59705 0.0973 0.4632 -0.13040 2022 5 7 59706 0.0992 0.4639 -0.12989 2022 5 8 59707 0.1011 0.4646 -0.12945 2022 5 9 59708 0.1030 0.4652 -0.12915 2022 5 10 59709 0.1050 0.4658 -0.12903 2022 5 11 59710 0.1069 0.4664 -0.12912 2022 5 12 59711 0.1089 0.4670 -0.12943 2022 5 13 59712 0.1108 0.4675 -0.12988 2022 5 14 59713 0.1128 0.4680 -0.13040 2022 5 15 59714 0.1148 0.4685 -0.13083 2022 5 16 59715 0.1168 0.4689 -0.13107 2022 5 17 59716 0.1188 0.4694 -0.13103 2022 5 18 59717 0.1208 0.4697 -0.13073 2022 5 19 59718 0.1228 0.4701 -0.13024 2022 5 20 59719 0.1249 0.4704 -0.12970 2022 5 21 59720 0.1269 0.4707 -0.12924 2022 5 22 59721 0.1289 0.4710 -0.12892 2022 5 23 59722 0.1309 0.4712 -0.12879 2022 5 24 59723 0.1330 0.4714 -0.12881 2022 5 25 59724 0.1350 0.4716 -0.12890 2022 5 26 59725 0.1371 0.4718 -0.12899 2022 5 27 59726 0.1391 0.4719 -0.12899 2022 5 28 59727 0.1412 0.4719 -0.12883 2022 5 29 59728 0.1432 0.4720 -0.12848 2022 5 30 59729 0.1453 0.4720 -0.12791 2022 5 31 59730 0.1473 0.4720 -0.12715 2022 6 1 59731 0.1494 0.4720 -0.12622 2022 6 2 59732 0.1514 0.4719 -0.12520 2022 6 3 59733 0.1535 0.4718 -0.12414 2022 6 4 59734 0.1555 0.4717 -0.12312 2022 6 5 59735 0.1576 0.4715 -0.12222 2022 6 6 59736 0.1596 0.4713 -0.12147 2022 6 7 59737 0.1617 0.4711 -0.12091 2022 6 8 59738 0.1637 0.4708 -0.12054 2022 6 9 59739 0.1657 0.4705 -0.12034 2022 6 10 59740 0.1677 0.4702 -0.12024 2022 6 11 59741 0.1698 0.4699 -0.12013 2022 6 12 59742 0.1718 0.4695 -0.11989 2022 6 13 59743 0.1738 0.4691 -0.11941 2022 6 14 59744 0.1758 0.4686 -0.11866 2022 6 15 59745 0.1777 0.4681 -0.11770 2022 6 16 59746 0.1797 0.4676 -0.11664 2022 6 17 59747 0.1817 0.4671 -0.11562 2022 6 18 59748 0.1836 0.4666 -0.11476 2022 6 19 59749 0.1856 0.4660 -0.11410 2022 6 20 59750 0.1875 0.4653 -0.11361 2022 6 21 59751 0.1894 0.4647 -0.11322 2022 6 22 59752 0.1914 0.4640 -0.11284 2022 6 23 59753 0.1933 0.4633 -0.11237 2022 6 24 59754 0.1951 0.4626 -0.11176 2022 6 25 59755 0.1970 0.4618 -0.11096 2022 6 26 59756 0.1989 0.4610 -0.10996 2022 6 27 59757 0.2007 0.4602 -0.10876 2022 6 28 59758 0.2025 0.4593 -0.10740 2022 6 29 59759 0.2043 0.4584 -0.10594 2022 6 30 59760 0.2061 0.4575 -0.10443 2022 7 1 59761 0.2079 0.4566 -0.10296 2022 7 2 59762 0.2097 0.4556 -0.10159 2022 7 3 59763 0.2114 0.4546 -0.10038 2022 7 4 59764 0.2131 0.4536 -0.09935 2022 7 5 59765 0.2148 0.4526 -0.09851 2022 7 6 59766 0.2165 0.4515 -0.09783 2022 7 7 59767 0.2182 0.4504 -0.09727 2022 7 8 59768 0.2198 0.4493 -0.09675 2022 7 9 59769 0.2214 0.4481 -0.09614 2022 7 10 59770 0.2230 0.4470 -0.09537 2022 7 11 59771 0.2246 0.4458 -0.09436 2022 7 12 59772 0.2262 0.4445 -0.09313 2022 7 13 59773 0.2277 0.4433 -0.09177 2022 7 14 59774 0.2292 0.4420 -0.09041 2022 7 15 59775 0.2307 0.4407 -0.08918 2022 7 16 59776 0.2322 0.4394 -0.08818 2022 7 17 59777 0.2336 0.4381 -0.08739 2022 7 18 59778 0.2350 0.4367 -0.08675 2022 7 19 59779 0.2364 0.4353 -0.08614 2022 7 20 59780 0.2378 0.4339 -0.08546 2022 7 21 59781 0.2391 0.4325 -0.08462 2022 7 22 59782 0.2405 0.4311 -0.08357 2022 7 23 59783 0.2417 0.4296 -0.08229 2022 7 24 59784 0.2430 0.4281 -0.08078 2022 7 25 59785 0.2442 0.4266 -0.07909 2022 7 26 59786 0.2454 0.4251 -0.07726 2022 7 27 59787 0.2466 0.4235 -0.07537 2022 7 28 59788 0.2478 0.4220 -0.07350 2022 7 29 59789 0.2489 0.4204 -0.07174 2022 7 30 59790 0.2500 0.4188 -0.07017 2022 7 31 59791 0.2510 0.4172 -0.06885 2022 8 1 59792 0.2521 0.4155 -0.06779 2022 8 2 59793 0.2531 0.4139 -0.06700 2022 8 3 59794 0.2540 0.4122 -0.06641 2022 8 4 59795 0.2550 0.4105 -0.06595 2022 8 5 59796 0.2559 0.4088 -0.06552 2022 8 6 59797 0.2568 0.4071 -0.06503 2022 8 7 59798 0.2576 0.4054 -0.06440 2022 8 8 59799 0.2584 0.4037 -0.06361 2022 8 9 59800 0.2592 0.4019 -0.06270 2022 8 10 59801 0.2600 0.4001 -0.06178 2022 8 11 59802 0.2607 0.3984 -0.06097 2022 8 12 59803 0.2614 0.3966 -0.06037 2022 8 13 59804 0.2621 0.3948 -0.06003 2022 8 14 59805 0.2627 0.3930 -0.05988 2022 8 15 59806 0.2633 0.3911 -0.05981 2022 8 16 59807 0.2638 0.3893 -0.05971 2022 8 17 59808 0.2643 0.3875 -0.05945 2022 8 18 59809 0.2648 0.3856 -0.05898 2022 8 19 59810 0.2653 0.3838 -0.05827 2022 8 20 59811 0.2657 0.3819 -0.05735 2022 8 21 59812 0.2661 0.3800 -0.05623 2022 8 22 59813 0.2665 0.3782 -0.05498 2022 8 23 59814 0.2668 0.3763 -0.05366 2022 8 24 59815 0.2671 0.3744 -0.05233 2022 8 25 59816 0.2673 0.3725 -0.05109 2022 8 26 59817 0.2676 0.3706 -0.05002 2022 8 27 59818 0.2677 0.3687 -0.04915 2022 8 28 59819 0.2679 0.3668 -0.04847 2022 8 29 59820 0.2680 0.3649 -0.04799 2022 8 30 59821 0.2681 0.3630 -0.04762 2022 8 31 59822 0.2681 0.3610 -0.04729 2022 9 1 59823 0.2682 0.3591 -0.04696 2022 9 2 59824 0.2681 0.3572 -0.04660 2022 9 3 59825 0.2681 0.3553 -0.04610 2022 9 4 59826 0.2680 0.3534 -0.04549 2022 9 5 59827 0.2679 0.3515 -0.04481 2022 9 6 59828 0.2677 0.3496 -0.04404 2022 9 7 59829 0.2675 0.3476 -0.04341 2022 9 8 59830 0.2673 0.3457 -0.04299 2022 9 9 59831 0.2670 0.3438 -0.04281 2022 9 10 59832 0.2667 0.3419 -0.04293 2022 9 11 59833 0.2664 0.3400 -0.04322 2022 9 12 59834 0.2661 0.3381 -0.04368 2022 9 13 59835 0.2657 0.3362 -0.04407 2022 9 14 59836 0.2652 0.3343 -0.04429 2022 9 15 59837 0.2648 0.3325 -0.04435 2022 9 16 59838 0.2643 0.3306 -0.04415 2022 9 17 59839 0.2637 0.3287 -0.04379 2022 9 18 59840 0.2632 0.3269 -0.04328 2022 9 19 59841 0.2626 0.3250 -0.04266 2022 9 20 59842 0.2619 0.3232 -0.04208 2022 9 21 59843 0.2613 0.3213 -0.04158 2022 9 22 59844 0.2606 0.3195 -0.04124 2022 9 23 59845 0.2598 0.3177 -0.04114 2022 9 24 59846 0.2591 0.3159 -0.04128 2022 9 25 59847 0.2583 0.3141 -0.04160 2022 9 26 59848 0.2575 0.3123 -0.04206 2022 9 27 59849 0.2566 0.3106 -0.04261 2022 9 28 59850 0.2557 0.3088 -0.04314 2022 9 29 59851 0.2548 0.3071 -0.04358 2022 9 30 59852 0.2539 0.3053 -0.04390 2022 10 1 59853 0.2529 0.3036 -0.04405 2022 10 2 59854 0.2519 0.3019 -0.04403 2022 10 3 59855 0.2508 0.3002 -0.04388 2022 10 4 59856 0.2498 0.2986 -0.04374 2022 10 5 59857 0.2487 0.2969 -0.04376 2022 10 6 59858 0.2475 0.2953 -0.04401 2022 10 7 59859 0.2464 0.2937 -0.04452 2022 10 8 59860 0.2452 0.2921 -0.04540 2022 10 9 59861 0.2440 0.2905 -0.04632 2022 10 10 59862 0.2427 0.2889 -0.04729 2022 10 11 59863 0.2415 0.2874 -0.04811 2022 10 12 59864 0.2402 0.2858 -0.04875 2022 10 13 59865 0.2389 0.2843 -0.04914 2022 10 14 59866 0.2375 0.2828 -0.04924 2022 10 15 59867 0.2361 0.2814 -0.04912 2022 10 16 59868 0.2347 0.2799 -0.04878 2022 10 17 59869 0.2333 0.2785 -0.04847 2022 10 18 59870 0.2319 0.2771 -0.04809 2022 10 19 59871 0.2304 0.2757 -0.04776 2022 10 20 59872 0.2289 0.2743 -0.04758 2022 10 21 59873 0.2274 0.2730 -0.04764 2022 10 22 59874 0.2258 0.2717 -0.04786 2022 10 23 59875 0.2243 0.2704 -0.04821 2022 10 24 59876 0.2227 0.2691 -0.04867 2022 10 25 59877 0.2211 0.2678 -0.04914 2022 10 26 59878 0.2194 0.2666 -0.04958 2022 10 27 59879 0.2178 0.2654 -0.04992 2022 10 28 59880 0.2161 0.2643 -0.05005 2022 10 29 59881 0.2144 0.2631 -0.04998 2022 10 30 59882 0.2127 0.2620 -0.04981 2022 10 31 59883 0.2110 0.2609 -0.04963 2022 11 1 59884 0.2092 0.2598 -0.04958 2022 11 2 59885 0.2074 0.2588 -0.04959 2022 11 3 59886 0.2057 0.2578 -0.04983 2022 11 4 59887 0.2039 0.2568 -0.05033 2022 11 5 59888 0.2020 0.2558 -0.05108 2022 11 6 59889 0.2002 0.2549 -0.05183 2022 11 7 59890 0.1984 0.2540 -0.05251 2022 11 8 59891 0.1965 0.2531 -0.05309 2022 11 9 59892 0.1946 0.2522 -0.05339 2022 11 10 59893 0.1927 0.2514 -0.05347 2022 11 11 59894 0.1908 0.2506 -0.05332 2022 11 12 59895 0.1889 0.2499 -0.05298 2022 11 13 59896 0.1870 0.2491 -0.05252 2022 11 14 59897 0.1850 0.2484 -0.05203 2022 11 15 59898 0.1831 0.2478 -0.05156 2022 11 16 59899 0.1811 0.2471 -0.05129 2022 11 17 59900 0.1791 0.2465 -0.05117 2022 11 18 59901 0.1771 0.2459 -0.05124 2022 11 19 59902 0.1751 0.2454 -0.05155 2022 11 20 59903 0.1731 0.2449 -0.05198 2022 11 21 59904 0.1711 0.2444 -0.05256 2022 11 22 59905 0.1691 0.2439 -0.05306 2022 11 23 59906 0.1671 0.2435 -0.05331 2022 11 24 59907 0.1651 0.2431 -0.05331 2022 11 25 59908 0.1630 0.2427 -0.05304 2022 11 26 59909 0.1610 0.2424 -0.05254 2022 11 27 59910 0.1589 0.2421 -0.05192 2022 11 28 59911 0.1569 0.2418 -0.05131 2022 11 29 59912 0.1548 0.2416 -0.05087 2022 11 30 59913 0.1528 0.2413 -0.05066 2022 12 1 59914 0.1507 0.2412 -0.05062 2022 12 2 59915 0.1487 0.2410 -0.05076 2022 12 3 59916 0.1466 0.2409 -0.05094 2022 12 4 59917 0.1445 0.2408 -0.05108 2022 12 5 59918 0.1425 0.2408 -0.05108 2022 12 6 59919 0.1404 0.2408 -0.05089 2022 12 7 59920 0.1384 0.2408 -0.05045 2022 12 8 59921 0.1363 0.2408 -0.04974 2022 12 9 59922 0.1343 0.2409 -0.04883 2022 12 10 59923 0.1322 0.2410 -0.04786 2022 12 11 59924 0.1302 0.2411 -0.04683 2022 12 12 59925 0.1281 0.2413 -0.04587 2022 12 13 59926 0.1261 0.2415 -0.04509 2022 12 14 59927 0.1240 0.2417 -0.04451 2022 12 15 59928 0.1220 0.2420 -0.04413 2022 12 16 59929 0.1200 0.2423 -0.04392 2022 12 17 59930 0.1180 0.2426 -0.04386 2022 12 18 59931 0.1160 0.2430 -0.04391 2022 12 19 59932 0.1140 0.2434 -0.04399 2022 12 20 59933 0.1120 0.2438 -0.04398 2022 12 21 59934 0.1100 0.2443 -0.04384 2022 12 22 59935 0.1080 0.2448 -0.04345 2022 12 23 59936 0.1061 0.2453 -0.04285 2022 12 24 59937 0.1041 0.2458 -0.04217 2022 12 25 59938 0.1022 0.2464 -0.04152 2022 12 26 59939 0.1003 0.2470 -0.04092 2022 12 27 59940 0.0984 0.2476 -0.04054 2022 12 28 59941 0.0965 0.2483 -0.04040 2022 12 29 59942 0.0946 0.2490 -0.04037 2022 12 30 59943 0.0927 0.2497 -0.04041 2022 12 31 59944 0.0909 0.2505 -0.04038 2023 1 1 59945 0.0890 0.2513 -0.04018 2023 1 2 59946 0.0872 0.2521 -0.03974 2023 1 3 59947 0.0854 0.2529 -0.03916 2023 1 4 59948 0.0836 0.2538 -0.03839 2023 1 5 59949 0.0818 0.2547 -0.03755 2023 1 6 59950 0.0801 0.2556 -0.03672 2023 1 7 59951 0.0783 0.2566 -0.03588 2023 1 8 59952 0.0766 0.2575 -0.03519 2023 1 9 59953 0.0749 0.2585 -0.03467 2023 1 10 59954 0.0732 0.2596 -0.03434 2023 1 11 59955 0.0716 0.2606 -0.03427 2023 1 12 59956 0.0699 0.2617 -0.03437 2023 1 13 59957 0.0683 0.2628 -0.03460 2023 1 14 59958 0.0667 0.2640 -0.03494 2023 1 15 59959 0.0651 0.2651 -0.03532 2023 1 16 59960 0.0636 0.2663 -0.03567 2023 1 17 59961 0.0621 0.2675 -0.03584 2023 1 18 59962 0.0606 0.2688 -0.03578 2023 1 19 59963 0.0591 0.2700 -0.03550 2023 1 20 59964 0.0576 0.2713 -0.03507 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) 59577 -109.75 0.76 -5.78 0.32 59578 -110.33 0.76 -5.51 0.32 59579 -111.11 0.76 -5.39 0.32 59580 -111.70 0.16 -5.55 0.30 59581 -111.74 0.29 -5.79 0.26 59582 -111.30 0.46 -5.86 0.17 59583 -110.73 0.46 -5.82 0.17 59584 -110.24 0.51 -5.87 0.14 59585 -109.87 0.51 -5.95 0.14 59586 -109.71 0.51 -5.83 0.14 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59577 0.260 0.302 -0.294 0.322 59578 0.209 0.302 -0.299 0.322 59579 0.168 0.302 -0.293 0.322 59580 0.146 0.064 -0.280 0.298 59581 0.138 0.116 -0.259 0.264 59582 0.141 0.181 -0.235 0.170 59583 0.151 0.181 -0.207 0.170 59584 0.166 0.201 -0.178 0.142 59585 0.183 0.201 -0.149 0.142 59586 0.201 0.201 -0.120 0.142 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).