********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 23 December 2021 Vol. XXXIV No. 051 ______________________________________________________________________ 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 Dec 2021 * * * * 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. * * * * Starting on the 23 Dec 2021, a new version of the IAA VLBI * * solution (iaa2021a.eops) is being used. The effect appears to be * * less than 0.1 mas in polar motion and 10 us in UT1-UTC. * * * * 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 21 12 17 59565 0.08267 .00009 0.26065 .00009 -0.109251 0.000013 21 12 18 59566 0.08037 .00009 0.26128 .00009 -0.109029 0.000013 21 12 19 59567 0.07874 .00009 0.26178 .00009 -0.108737 0.000016 21 12 20 59568 0.07725 .00009 0.26254 .00009 -0.108395 0.000021 21 12 21 59569 0.07537 .00009 0.26343 .00009 -0.107984 0.000022 21 12 22 59570 0.07315 .00009 0.26429 .00009 -0.107583 0.000021 21 12 23 59571 0.07082 .00009 0.26524 .00009 -0.107327 0.000021 _______________________________________________________________________ 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 = 0.1342 - 0.0274 cos A - 0.0867 sin A - 0.0331 cos C - 0.0127 sin C y = 0.3539 - 0.0791 cos A + 0.0211 sin A - 0.0127 cos C + 0.0331 sin C UT1-UTC = -0.1178 + 0.00020 (MJD - 59579) - (UT2-UT1) where A = 2*pi*(MJD-59571)/365.25 and C = 2*pi*(MJD-59571)/435. TAI-UTC(MJD 59572) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59571)**0.80 S t = 0.00025 (MJD-59571)**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) 2021 12 24 59572 0.0685 0.2661 -0.10723 2021 12 25 59573 0.0663 0.2670 -0.10732 2021 12 26 59574 0.0642 0.2679 -0.10763 2021 12 27 59575 0.0624 0.2688 -0.10812 2021 12 28 59576 0.0609 0.2697 -0.10871 2021 12 29 59577 0.0594 0.2708 -0.10928 2021 12 30 59578 0.0578 0.2718 -0.10973 2021 12 31 59579 0.0564 0.2730 -0.10997 2022 1 1 59580 0.0550 0.2741 -0.10997 2022 1 2 59581 0.0535 0.2752 -0.10978 2022 1 3 59582 0.0521 0.2763 -0.10953 2022 1 4 59583 0.0507 0.2775 -0.10932 2022 1 5 59584 0.0493 0.2786 -0.10927 2022 1 6 59585 0.0480 0.2798 -0.10942 2022 1 7 59586 0.0466 0.2811 -0.10975 2022 1 8 59587 0.0453 0.2824 -0.11018 2022 1 9 59588 0.0439 0.2836 -0.11061 2022 1 10 59589 0.0427 0.2849 -0.11098 2022 1 11 59590 0.0415 0.2862 -0.11123 2022 1 12 59591 0.0403 0.2875 -0.11132 2022 1 13 59592 0.0391 0.2889 -0.11122 2022 1 14 59593 0.0380 0.2903 -0.11093 2022 1 15 59594 0.0368 0.2917 -0.11047 2022 1 16 59595 0.0357 0.2931 -0.10989 2022 1 17 59596 0.0345 0.2946 -0.10926 2022 1 18 59597 0.0334 0.2961 -0.10866 2022 1 19 59598 0.0323 0.2976 -0.10815 2022 1 20 59599 0.0312 0.2991 -0.10780 2022 1 21 59600 0.0302 0.3006 -0.10763 2022 1 22 59601 0.0292 0.3022 -0.10766 2022 1 23 59602 0.0282 0.3038 -0.10786 2022 1 24 59603 0.0272 0.3054 -0.10817 2022 1 25 59604 0.0263 0.3070 -0.10852 2022 1 26 59605 0.0254 0.3086 -0.10879 2022 1 27 59606 0.0245 0.3102 -0.10890 2022 1 28 59607 0.0236 0.3119 -0.10879 2022 1 29 59608 0.0228 0.3136 -0.10848 2022 1 30 59609 0.0220 0.3153 -0.10806 2022 1 31 59610 0.0212 0.3170 -0.10764 2022 2 1 59611 0.0205 0.3187 -0.10734 2022 2 2 59612 0.0198 0.3205 -0.10725 2022 2 3 59613 0.0191 0.3222 -0.10737 2022 2 4 59614 0.0184 0.3240 -0.10765 2022 2 5 59615 0.0178 0.3257 -0.10801 2022 2 6 59616 0.0172 0.3275 -0.10834 2022 2 7 59617 0.0167 0.3293 -0.10857 2022 2 8 59618 0.0162 0.3311 -0.10864 2022 2 9 59619 0.0157 0.3329 -0.10854 2022 2 10 59620 0.0152 0.3347 -0.10827 2022 2 11 59621 0.0148 0.3365 -0.10784 2022 2 12 59622 0.0144 0.3384 -0.10730 2022 2 13 59623 0.0141 0.3402 -0.10672 2022 2 14 59624 0.0137 0.3420 -0.10614 2022 2 15 59625 0.0135 0.3439 -0.10566 2022 2 16 59626 0.0132 0.3457 -0.10535 2022 2 17 59627 0.0130 0.3476 -0.10525 2022 2 18 59628 0.0128 0.3495 -0.10538 2022 2 19 59629 0.0126 0.3513 -0.10572 2022 2 20 59630 0.0125 0.3532 -0.10618 2022 2 21 59631 0.0124 0.3551 -0.10667 2022 2 22 59632 0.0123 0.3570 -0.10710 2022 2 23 59633 0.0123 0.3588 -0.10737 2022 2 24 59634 0.0123 0.3607 -0.10743 2022 2 25 59635 0.0124 0.3626 -0.10729 2022 2 26 59636 0.0124 0.3645 -0.10700 2022 2 27 59637 0.0125 0.3664 -0.10669 2022 2 28 59638 0.0127 0.3683 -0.10646 2022 3 1 59639 0.0128 0.3701 -0.10644 2022 3 2 59640 0.0130 0.3720 -0.10665 2022 3 3 59641 0.0133 0.3739 -0.10707 2022 3 4 59642 0.0136 0.3758 -0.10763 2022 3 5 59643 0.0139 0.3777 -0.10821 2022 3 6 59644 0.0142 0.3795 -0.10873 2022 3 7 59645 0.0146 0.3814 -0.10911 2022 3 8 59646 0.0150 0.3833 -0.10931 2022 3 9 59647 0.0154 0.3851 -0.10932 2022 3 10 59648 0.0159 0.3870 -0.10917 2022 3 11 59649 0.0164 0.3888 -0.10888 2022 3 12 59650 0.0169 0.3907 -0.10853 2022 3 13 59651 0.0175 0.3925 -0.10818 2022 3 14 59652 0.0181 0.3943 -0.10791 2022 3 15 59653 0.0188 0.3962 -0.10781 2022 3 16 59654 0.0194 0.3980 -0.10792 2022 3 17 59655 0.0201 0.3998 -0.10828 2022 3 18 59656 0.0209 0.4016 -0.10887 2022 3 19 59657 0.0216 0.4034 -0.10966 2022 3 20 59658 0.0224 0.4051 -0.11052 2022 3 21 59659 0.0232 0.4069 -0.11134 2022 3 22 59660 0.0241 0.4086 -0.11201 2022 3 23 59661 0.0250 0.4104 -0.11246 2022 3 24 59662 0.0259 0.4121 -0.11269 2022 3 25 59663 0.0269 0.4138 -0.11275 2022 3 26 59664 0.0278 0.4155 -0.11273 2022 3 27 59665 0.0289 0.4172 -0.11277 2022 3 28 59666 0.0299 0.4189 -0.11295 2022 3 29 59667 0.0310 0.4206 -0.11335 2022 3 30 59668 0.0321 0.4222 -0.11395 2022 3 31 59669 0.0332 0.4238 -0.11472 2022 4 1 59670 0.0343 0.4254 -0.11556 2022 4 2 59671 0.0355 0.4270 -0.11637 2022 4 3 59672 0.0367 0.4286 -0.11706 2022 4 4 59673 0.0380 0.4302 -0.11757 2022 4 5 59674 0.0393 0.4317 -0.11787 2022 4 6 59675 0.0406 0.4332 -0.11798 2022 4 7 59676 0.0419 0.4347 -0.11792 2022 4 8 59677 0.0432 0.4362 -0.11776 2022 4 9 59678 0.0446 0.4377 -0.11757 2022 4 10 59679 0.0460 0.4391 -0.11741 2022 4 11 59680 0.0474 0.4406 -0.11734 2022 4 12 59681 0.0489 0.4420 -0.11744 2022 4 13 59682 0.0504 0.4434 -0.11777 2022 4 14 59683 0.0519 0.4447 -0.11833 2022 4 15 59684 0.0534 0.4461 -0.11909 2022 4 16 59685 0.0550 0.4474 -0.11997 2022 4 17 59686 0.0565 0.4487 -0.12085 2022 4 18 59687 0.0581 0.4499 -0.12159 2022 4 19 59688 0.0597 0.4512 -0.12209 2022 4 20 59689 0.0614 0.4524 -0.12233 2022 4 21 59690 0.0630 0.4536 -0.12234 2022 4 22 59691 0.0647 0.4548 -0.12222 2022 4 23 59692 0.0664 0.4559 -0.12210 2022 4 24 59693 0.0682 0.4571 -0.12208 2022 4 25 59694 0.0699 0.4582 -0.12224 2022 4 26 59695 0.0717 0.4592 -0.12259 2022 4 27 59696 0.0734 0.4603 -0.12310 2022 4 28 59697 0.0752 0.4613 -0.12369 2022 4 29 59698 0.0771 0.4623 -0.12427 2022 4 30 59699 0.0789 0.4633 -0.12475 2022 5 1 59700 0.0807 0.4642 -0.12507 2022 5 2 59701 0.0826 0.4651 -0.12519 2022 5 3 59702 0.0845 0.4660 -0.12509 2022 5 4 59703 0.0864 0.4669 -0.12481 2022 5 5 59704 0.0883 0.4677 -0.12438 2022 5 6 59705 0.0902 0.4685 -0.12388 2022 5 7 59706 0.0922 0.4693 -0.12337 2022 5 8 59707 0.0941 0.4700 -0.12294 2022 5 9 59708 0.0961 0.4707 -0.12264 2022 5 10 59709 0.0981 0.4714 -0.12252 2022 5 11 59710 0.1001 0.4721 -0.12262 2022 5 12 59711 0.1021 0.4727 -0.12293 2022 5 13 59712 0.1041 0.4733 -0.12340 2022 5 14 59713 0.1061 0.4738 -0.12392 2022 5 15 59714 0.1081 0.4744 -0.12437 2022 5 16 59715 0.1102 0.4749 -0.12462 2022 5 17 59716 0.1122 0.4753 -0.12459 2022 5 18 59717 0.1143 0.4758 -0.12430 2022 5 19 59718 0.1163 0.4762 -0.12382 2022 5 20 59719 0.1184 0.4766 -0.12329 2022 5 21 59720 0.1205 0.4769 -0.12284 2022 5 22 59721 0.1226 0.4772 -0.12254 2022 5 23 59722 0.1247 0.4775 -0.12243 2022 5 24 59723 0.1268 0.4778 -0.12246 2022 5 25 59724 0.1289 0.4780 -0.12257 2022 5 26 59725 0.1310 0.4782 -0.12268 2022 5 27 59726 0.1331 0.4783 -0.12270 2022 5 28 59727 0.1352 0.4785 -0.12257 2022 5 29 59728 0.1373 0.4786 -0.12224 2022 5 30 59729 0.1394 0.4786 -0.12170 2022 5 31 59730 0.1415 0.4787 -0.12096 2022 6 1 59731 0.1436 0.4787 -0.12006 2022 6 2 59732 0.1457 0.4786 -0.11906 2022 6 3 59733 0.1478 0.4786 -0.11802 2022 6 4 59734 0.1499 0.4785 -0.11703 2022 6 5 59735 0.1520 0.4783 -0.11616 2022 6 6 59736 0.1541 0.4782 -0.11543 2022 6 7 59737 0.1562 0.4780 -0.11490 2022 6 8 59738 0.1583 0.4778 -0.11456 2022 6 9 59739 0.1604 0.4775 -0.11439 2022 6 10 59740 0.1625 0.4772 -0.11431 2022 6 11 59741 0.1646 0.4769 -0.11422 2022 6 12 59742 0.1666 0.4766 -0.11400 2022 6 13 59743 0.1687 0.4762 -0.11354 2022 6 14 59744 0.1707 0.4758 -0.11281 2022 6 15 59745 0.1728 0.4753 -0.11186 2022 6 16 59746 0.1748 0.4748 -0.11081 2022 6 17 59747 0.1769 0.4743 -0.10980 2022 6 18 59748 0.1789 0.4738 -0.10895 2022 6 19 59749 0.1809 0.4732 -0.10828 2022 6 20 59750 0.1829 0.4726 -0.10779 2022 6 21 59751 0.1849 0.4720 -0.10739 2022 6 22 59752 0.1869 0.4713 -0.10699 2022 6 23 59753 0.1888 0.4706 -0.10649 2022 6 24 59754 0.1908 0.4699 -0.10585 2022 6 25 59755 0.1927 0.4692 -0.10501 2022 6 26 59756 0.1946 0.4684 -0.10395 2022 6 27 59757 0.1965 0.4676 -0.10271 2022 6 28 59758 0.1984 0.4667 -0.10130 2022 6 29 59759 0.2003 0.4659 -0.09980 2022 6 30 59760 0.2022 0.4650 -0.09827 2022 7 1 59761 0.2040 0.4641 -0.09680 2022 7 2 59762 0.2058 0.4631 -0.09546 2022 7 3 59763 0.2076 0.4621 -0.09431 2022 7 4 59764 0.2094 0.4611 -0.09337 2022 7 5 59765 0.2112 0.4601 -0.09263 2022 7 6 59766 0.2130 0.4590 -0.09207 2022 7 7 59767 0.2147 0.4579 -0.09161 2022 7 8 59768 0.2164 0.4568 -0.09115 2022 7 9 59769 0.2181 0.4557 -0.09059 2022 7 10 59770 0.2198 0.4545 -0.08982 2022 7 11 59771 0.2214 0.4533 -0.08880 2022 7 12 59772 0.2231 0.4521 -0.08755 2022 7 13 59773 0.2247 0.4509 -0.08618 2022 7 14 59774 0.2262 0.4496 -0.08483 2022 7 15 59775 0.2278 0.4483 -0.08366 2022 7 16 59776 0.2293 0.4470 -0.08275 2022 7 17 59777 0.2309 0.4456 -0.08211 2022 7 18 59778 0.2323 0.4443 -0.08168 2022 7 19 59779 0.2338 0.4429 -0.08132 2022 7 20 59780 0.2352 0.4415 -0.08092 2022 7 21 59781 0.2367 0.4400 -0.08041 2022 7 22 59782 0.2380 0.4386 -0.07971 2022 7 23 59783 0.2394 0.4371 -0.07882 2022 7 24 59784 0.2407 0.4356 -0.07773 2022 7 25 59785 0.2420 0.4341 -0.07649 2022 7 26 59786 0.2433 0.4326 -0.07514 2022 7 27 59787 0.2446 0.4310 -0.07376 2022 7 28 59788 0.2458 0.4294 -0.07243 2022 7 29 59789 0.2470 0.4279 -0.07122 2022 7 30 59790 0.2482 0.4262 -0.07018 2022 7 31 59791 0.2493 0.4246 -0.06932 2022 8 1 59792 0.2504 0.4230 -0.06863 2022 8 2 59793 0.2515 0.4213 -0.06811 2022 8 3 59794 0.2525 0.4196 -0.06769 2022 8 4 59795 0.2535 0.4179 -0.06735 2022 8 5 59796 0.2545 0.4162 -0.06703 2022 8 6 59797 0.2555 0.4145 -0.06664 2022 8 7 59798 0.2564 0.4127 -0.06607 2022 8 8 59799 0.2573 0.4110 -0.06525 2022 8 9 59800 0.2581 0.4092 -0.06428 2022 8 10 59801 0.2590 0.4074 -0.06328 2022 8 11 59802 0.2598 0.4056 -0.06240 2022 8 12 59803 0.2605 0.4038 -0.06175 2022 8 13 59804 0.2613 0.4020 -0.06150 2022 8 14 59805 0.2620 0.4002 -0.06140 2022 8 15 59806 0.2626 0.3983 -0.06148 2022 8 16 59807 0.2633 0.3965 -0.06151 2022 8 17 59808 0.2639 0.3946 -0.06146 2022 8 18 59809 0.2644 0.3928 -0.06120 2022 8 19 59810 0.2650 0.3909 -0.06067 2022 8 20 59811 0.2655 0.3890 -0.05989 2022 8 21 59812 0.2659 0.3871 -0.05884 2022 8 22 59813 0.2664 0.3852 -0.05774 2022 8 23 59814 0.2667 0.3833 -0.05648 2022 8 24 59815 0.2671 0.3814 -0.05518 2022 8 25 59816 0.2674 0.3794 -0.05397 2022 8 26 59817 0.2677 0.3775 -0.05294 2022 8 27 59818 0.2680 0.3756 -0.05206 2022 8 28 59819 0.2682 0.3737 -0.05135 2022 8 29 59820 0.2684 0.3717 -0.05081 2022 8 30 59821 0.2686 0.3698 -0.05040 2022 8 31 59822 0.2687 0.3678 -0.05011 2022 9 1 59823 0.2688 0.3659 -0.04987 2022 9 2 59824 0.2688 0.3639 -0.04955 2022 9 3 59825 0.2688 0.3620 -0.04908 2022 9 4 59826 0.2688 0.3601 -0.04844 2022 9 5 59827 0.2688 0.3581 -0.04769 2022 9 6 59828 0.2687 0.3562 -0.04689 2022 9 7 59829 0.2685 0.3542 -0.04603 2022 9 8 59830 0.2684 0.3523 -0.04537 2022 9 9 59831 0.2682 0.3503 -0.04502 2022 9 10 59832 0.2680 0.3484 -0.04507 2022 9 11 59833 0.2677 0.3465 -0.04528 2022 9 12 59834 0.2674 0.3445 -0.04559 2022 9 13 59835 0.2671 0.3426 -0.04589 2022 9 14 59836 0.2667 0.3407 -0.04600 2022 9 15 59837 0.2663 0.3388 -0.04590 2022 9 16 59838 0.2659 0.3369 -0.04555 2022 9 17 59839 0.2654 0.3350 -0.04498 2022 9 18 59840 0.2649 0.3331 -0.04422 2022 9 19 59841 0.2644 0.3312 -0.04336 2022 9 20 59842 0.2638 0.3293 -0.04245 2022 9 21 59843 0.2632 0.3274 -0.04167 2022 9 22 59844 0.2626 0.3256 -0.04101 2022 9 23 59845 0.2619 0.3237 -0.04055 2022 9 24 59846 0.2612 0.3219 -0.04035 2022 9 25 59847 0.2605 0.3201 -0.04035 2022 9 26 59848 0.2597 0.3182 -0.04060 2022 9 27 59849 0.2590 0.3164 -0.04089 2022 9 28 59850 0.2581 0.3146 -0.04108 2022 9 29 59851 0.2573 0.3129 -0.04113 2022 9 30 59852 0.2564 0.3111 -0.04097 2022 10 1 59853 0.2555 0.3093 -0.04055 2022 10 2 59854 0.2545 0.3076 -0.03991 2022 10 3 59855 0.2535 0.3059 -0.03913 2022 10 4 59856 0.2525 0.3042 -0.03837 2022 10 5 59857 0.2515 0.3025 -0.03777 2022 10 6 59858 0.2504 0.3008 -0.03737 2022 10 7 59859 0.2493 0.2991 -0.03728 2022 10 8 59860 0.2482 0.2975 -0.03743 2022 10 9 59861 0.2470 0.2959 -0.03773 2022 10 10 59862 0.2458 0.2942 -0.03805 2022 10 11 59863 0.2446 0.2927 -0.03827 2022 10 12 59864 0.2434 0.2911 -0.03827 2022 10 13 59865 0.2421 0.2895 -0.03798 2022 10 14 59866 0.2408 0.2880 -0.03744 2022 10 15 59867 0.2395 0.2865 -0.03676 2022 10 16 59868 0.2382 0.2850 -0.03593 2022 10 17 59869 0.2368 0.2835 -0.03509 2022 10 18 59870 0.2354 0.2821 -0.03436 2022 10 19 59871 0.2340 0.2807 -0.03378 2022 10 20 59872 0.2325 0.2793 -0.03340 2022 10 21 59873 0.2310 0.2779 -0.03321 2022 10 22 59874 0.2296 0.2765 -0.03322 2022 10 23 59875 0.2280 0.2752 -0.03345 2022 10 24 59876 0.2265 0.2739 -0.03381 2022 10 25 59877 0.2249 0.2726 -0.03422 2022 10 26 59878 0.2233 0.2713 -0.03457 2022 10 27 59879 0.2217 0.2701 -0.03474 2022 10 28 59880 0.2201 0.2689 -0.03466 2022 10 29 59881 0.2185 0.2677 -0.03440 2022 10 30 59882 0.2168 0.2665 -0.03401 2022 10 31 59883 0.2151 0.2654 -0.03347 2022 11 1 59884 0.2134 0.2643 -0.03303 2022 11 2 59885 0.2117 0.2632 -0.03277 2022 11 3 59886 0.2099 0.2621 -0.03271 2022 11 4 59887 0.2082 0.2611 -0.03288 2022 11 5 59888 0.2064 0.2601 -0.03318 2022 11 6 59889 0.2046 0.2591 -0.03350 2022 11 7 59890 0.2028 0.2582 -0.03370 2022 11 8 59891 0.2009 0.2573 -0.03381 2022 11 9 59892 0.1991 0.2564 -0.03372 2022 11 10 59893 0.1972 0.2555 -0.03349 2022 11 11 59894 0.1954 0.2547 -0.03317 2022 11 12 59895 0.1935 0.2539 -0.03274 2022 11 13 59896 0.1916 0.2531 -0.03233 2022 11 14 59897 0.1897 0.2524 -0.03200 2022 11 15 59898 0.1877 0.2516 -0.03178 2022 11 16 59899 0.1858 0.2510 -0.03177 2022 11 17 59900 0.1839 0.2503 -0.03193 2022 11 18 59901 0.1819 0.2497 -0.03227 2022 11 19 59902 0.1799 0.2491 -0.03279 2022 11 20 59903 0.1780 0.2485 -0.03347 2022 11 21 59904 0.1760 0.2480 -0.03424 2022 11 22 59905 0.1740 0.2475 -0.03492 2022 11 23 59906 0.1720 0.2470 -0.03543 2022 11 24 59907 0.1700 0.2466 -0.03569 2022 11 25 59908 0.1680 0.2462 -0.03570 2022 11 26 59909 0.1660 0.2458 -0.03551 2022 11 27 59910 0.1639 0.2455 -0.03526 2022 11 28 59911 0.1619 0.2452 -0.03506 2022 11 29 59912 0.1599 0.2449 -0.03499 2022 11 30 59913 0.1578 0.2446 -0.03508 2022 12 1 59914 0.1558 0.2444 -0.03529 2022 12 2 59915 0.1538 0.2443 -0.03565 2022 12 3 59916 0.1517 0.2441 -0.03608 2022 12 4 59917 0.1497 0.2440 -0.03632 2022 12 5 59918 0.1476 0.2439 -0.03635 2022 12 6 59919 0.1456 0.2438 -0.03620 2022 12 7 59920 0.1436 0.2438 -0.03585 2022 12 8 59921 0.1415 0.2438 -0.03530 2022 12 9 59922 0.1395 0.2439 -0.03461 2022 12 10 59923 0.1374 0.2439 -0.03373 2022 12 11 59924 0.1354 0.2441 -0.03283 2022 12 12 59925 0.1334 0.2442 -0.03198 2022 12 13 59926 0.1313 0.2444 -0.03121 2022 12 14 59927 0.1293 0.2446 -0.03064 2022 12 15 59928 0.1273 0.2448 -0.03026 2022 12 16 59929 0.1253 0.2451 -0.03004 2022 12 17 59930 0.1233 0.2454 -0.03012 2022 12 18 59931 0.1213 0.2457 -0.03029 2022 12 19 59932 0.1193 0.2460 -0.03049 2022 12 20 59933 0.1173 0.2464 -0.03060 2022 12 21 59934 0.1153 0.2469 -0.03047 2022 12 22 59935 0.1134 0.2473 -0.03006 2022 12 23 59936 0.1114 0.2478 -0.02948 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) 59545 -111.06 0.74 -6.59 0.05 59546 -110.98 0.53 -6.43 0.14 59547 -111.19 0.53 -6.42 0.14 59548 -111.46 0.49 -6.40 0.16 59549 -111.64 0.62 -6.21 0.14 59550 -111.84 0.62 -5.94 0.14 59551 -112.08 0.62 -5.87 0.14 59552 -112.11 0.72 -6.03 0.12 59553 -111.77 0.72 -6.15 0.12 59554 -111.33 0.72 -6.07 0.12 59555 -111.10 0.69 -5.99 0.16 59556 -111.04 0.71 -6.12 0.14 59557 -110.99 0.71 -6.33 0.14 59558 -110.94 0.71 -6.29 0.14 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59545 0.270 0.294 -0.064 0.054 59546 0.244 0.212 -0.086 0.140 59547 0.220 0.212 -0.109 0.140 59548 0.211 0.194 -0.128 0.158 59549 0.225 0.246 -0.139 0.138 59550 0.254 0.246 -0.143 0.138 59551 0.286 0.246 -0.143 0.138 59552 0.309 0.286 -0.143 0.117 59553 0.319 0.286 -0.144 0.120 59554 0.320 0.286 -0.144 0.120 59555 0.316 0.275 -0.145 0.157 59556 0.309 0.281 -0.144 0.143 59557 0.301 0.281 -0.143 0.143 59558 0.292 0.281 -0.142 0.143 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).