********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 9 December 2021 Vol. XXXIV No. 049 ______________________________________________________________________ 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 18 Nov 2021, new versions of the USNO VLBI * * solutions (usn2021c.eoxy and usn2021c.eopi) are 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 3 59551 0.11518 .00009 0.25400 .00009 -0.107734 0.000024 21 12 4 59552 0.11363 .00009 0.25443 .00009 -0.107870 0.000021 21 12 5 59553 0.11223 .00009 0.25467 .00009 -0.107770 0.000018 21 12 6 59554 0.11087 .00009 0.25510 .00009 -0.107534 0.000016 21 12 7 59555 0.10910 .00009 0.25567 .00009 -0.107218 0.000065 21 12 8 59556 0.10668 .00009 0.25628 .00009 -0.106964 0.000065 21 12 9 59557 0.10392 .00009 0.25682 .00009 -0.106876 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 = 0.1460 - 0.0032 cos A - 0.0961 sin A - 0.0351 cos C - 0.0161 sin C y = 0.3571 - 0.0863 cos A - 0.0018 sin A - 0.0161 cos C + 0.0351 sin C UT1-UTC = -0.1151 + 0.00021 (MJD - 59565) - (UT2-UT1) where A = 2*pi*(MJD-59557)/365.25 and C = 2*pi*(MJD-59557)/435. TAI-UTC(MJD 59558) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59557)**0.80 S t = 0.00025 (MJD-59557)**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 10 59558 0.1013 0.2572 -0.10704 2021 12 11 59559 0.0989 0.2575 -0.10742 2021 12 12 59560 0.0968 0.2578 -0.10788 2021 12 13 59561 0.0948 0.2581 -0.10833 2021 12 14 59562 0.0929 0.2586 -0.10873 2021 12 15 59563 0.0911 0.2593 -0.10903 2021 12 16 59564 0.0893 0.2600 -0.10920 2021 12 17 59565 0.0874 0.2607 -0.10920 2021 12 18 59566 0.0855 0.2613 -0.10903 2021 12 19 59567 0.0836 0.2620 -0.10870 2021 12 20 59568 0.0817 0.2627 -0.10827 2021 12 21 59569 0.0799 0.2635 -0.10779 2021 12 22 59570 0.0780 0.2643 -0.10730 2021 12 23 59571 0.0763 0.2651 -0.10688 2021 12 24 59572 0.0745 0.2660 -0.10661 2021 12 25 59573 0.0728 0.2668 -0.10650 2021 12 26 59574 0.0711 0.2677 -0.10657 2021 12 27 59575 0.0695 0.2686 -0.10682 2021 12 28 59576 0.0679 0.2695 -0.10719 2021 12 29 59577 0.0664 0.2704 -0.10757 2021 12 30 59578 0.0649 0.2715 -0.10782 2021 12 31 59579 0.0634 0.2725 -0.10786 2022 1 1 59580 0.0618 0.2736 -0.10763 2022 1 2 59581 0.0603 0.2747 -0.10719 2022 1 3 59582 0.0588 0.2759 -0.10665 2022 1 4 59583 0.0573 0.2770 -0.10615 2022 1 5 59584 0.0559 0.2782 -0.10581 2022 1 6 59585 0.0544 0.2793 -0.10567 2022 1 7 59586 0.0530 0.2805 -0.10569 2022 1 8 59587 0.0517 0.2818 -0.10582 2022 1 9 59588 0.0503 0.2830 -0.10598 2022 1 10 59589 0.0490 0.2843 -0.10609 2022 1 11 59590 0.0477 0.2856 -0.10608 2022 1 12 59591 0.0464 0.2869 -0.10591 2022 1 13 59592 0.0451 0.2883 -0.10557 2022 1 14 59593 0.0438 0.2897 -0.10506 2022 1 15 59594 0.0426 0.2911 -0.10440 2022 1 16 59595 0.0414 0.2925 -0.10365 2022 1 17 59596 0.0402 0.2939 -0.10286 2022 1 18 59597 0.0390 0.2954 -0.10210 2022 1 19 59598 0.0379 0.2968 -0.10145 2022 1 20 59599 0.0368 0.2983 -0.10097 2022 1 21 59600 0.0357 0.2998 -0.10069 2022 1 22 59601 0.0346 0.3013 -0.10063 2022 1 23 59602 0.0336 0.3029 -0.10074 2022 1 24 59603 0.0326 0.3044 -0.10096 2022 1 25 59604 0.0316 0.3060 -0.10120 2022 1 26 59605 0.0307 0.3076 -0.10137 2022 1 27 59606 0.0298 0.3092 -0.10139 2022 1 28 59607 0.0289 0.3108 -0.10118 2022 1 29 59608 0.0280 0.3125 -0.10078 2022 1 30 59609 0.0272 0.3141 -0.10025 2022 1 31 59610 0.0263 0.3158 -0.09972 2022 2 1 59611 0.0256 0.3174 -0.09932 2022 2 2 59612 0.0248 0.3191 -0.09913 2022 2 3 59613 0.0241 0.3208 -0.09915 2022 2 4 59614 0.0234 0.3226 -0.09934 2022 2 5 59615 0.0228 0.3243 -0.09961 2022 2 6 59616 0.0221 0.3260 -0.09986 2022 2 7 59617 0.0215 0.3278 -0.10001 2022 2 8 59618 0.0210 0.3295 -0.10002 2022 2 9 59619 0.0205 0.3313 -0.09985 2022 2 10 59620 0.0200 0.3331 -0.09952 2022 2 11 59621 0.0195 0.3349 -0.09904 2022 2 12 59622 0.0191 0.3367 -0.09845 2022 2 13 59623 0.0186 0.3385 -0.09781 2022 2 14 59624 0.0183 0.3403 -0.09720 2022 2 15 59625 0.0179 0.3421 -0.09669 2022 2 16 59626 0.0176 0.3439 -0.09635 2022 2 17 59627 0.0174 0.3457 -0.09622 2022 2 18 59628 0.0171 0.3476 -0.09634 2022 2 19 59629 0.0169 0.3494 -0.09666 2022 2 20 59630 0.0167 0.3513 -0.09713 2022 2 21 59631 0.0166 0.3531 -0.09764 2022 2 22 59632 0.0165 0.3550 -0.09810 2022 2 23 59633 0.0164 0.3568 -0.09842 2022 2 24 59634 0.0164 0.3587 -0.09854 2022 2 25 59635 0.0164 0.3605 -0.09847 2022 2 26 59636 0.0164 0.3624 -0.09827 2022 2 27 59637 0.0164 0.3643 -0.09805 2022 2 28 59638 0.0165 0.3661 -0.09794 2022 3 1 59639 0.0167 0.3680 -0.09802 2022 3 2 59640 0.0168 0.3698 -0.09835 2022 3 3 59641 0.0170 0.3717 -0.09891 2022 3 4 59642 0.0172 0.3735 -0.09960 2022 3 5 59643 0.0175 0.3754 -0.10033 2022 3 6 59644 0.0178 0.3772 -0.10099 2022 3 7 59645 0.0181 0.3791 -0.10152 2022 3 8 59646 0.0184 0.3809 -0.10187 2022 3 9 59647 0.0188 0.3828 -0.10202 2022 3 10 59648 0.0193 0.3846 -0.10201 2022 3 11 59649 0.0197 0.3864 -0.10186 2022 3 12 59650 0.0202 0.3883 -0.10164 2022 3 13 59651 0.0207 0.3901 -0.10141 2022 3 14 59652 0.0213 0.3919 -0.10126 2022 3 15 59653 0.0219 0.3937 -0.10125 2022 3 16 59654 0.0225 0.3955 -0.10144 2022 3 17 59655 0.0231 0.3973 -0.10188 2022 3 18 59656 0.0238 0.3991 -0.10255 2022 3 19 59657 0.0245 0.4008 -0.10340 2022 3 20 59658 0.0253 0.4026 -0.10432 2022 3 21 59659 0.0260 0.4043 -0.10520 2022 3 22 59660 0.0268 0.4061 -0.10592 2022 3 23 59661 0.0277 0.4078 -0.10642 2022 3 24 59662 0.0286 0.4095 -0.10669 2022 3 25 59663 0.0295 0.4112 -0.10678 2022 3 26 59664 0.0304 0.4129 -0.10681 2022 3 27 59665 0.0313 0.4146 -0.10688 2022 3 28 59666 0.0323 0.4162 -0.10705 2022 3 29 59667 0.0334 0.4179 -0.10743 2022 3 30 59668 0.0344 0.4195 -0.10803 2022 3 31 59669 0.0355 0.4211 -0.10879 2022 4 1 59670 0.0366 0.4227 -0.10962 2022 4 2 59671 0.0377 0.4243 -0.11042 2022 4 3 59672 0.0389 0.4259 -0.11110 2022 4 4 59673 0.0401 0.4274 -0.11161 2022 4 5 59674 0.0413 0.4289 -0.11192 2022 4 6 59675 0.0425 0.4304 -0.11203 2022 4 7 59676 0.0438 0.4319 -0.11197 2022 4 8 59677 0.0451 0.4334 -0.11181 2022 4 9 59678 0.0465 0.4349 -0.11162 2022 4 10 59679 0.0478 0.4363 -0.11146 2022 4 11 59680 0.0492 0.4377 -0.11140 2022 4 12 59681 0.0506 0.4391 -0.11153 2022 4 13 59682 0.0520 0.4405 -0.11187 2022 4 14 59683 0.0535 0.4419 -0.11245 2022 4 15 59684 0.0549 0.4432 -0.11323 2022 4 16 59685 0.0564 0.4445 -0.11413 2022 4 17 59686 0.0580 0.4458 -0.11503 2022 4 18 59687 0.0595 0.4471 -0.11580 2022 4 19 59688 0.0611 0.4483 -0.11632 2022 4 20 59689 0.0627 0.4495 -0.11658 2022 4 21 59690 0.0643 0.4507 -0.11662 2022 4 22 59691 0.0659 0.4519 -0.11652 2022 4 23 59692 0.0676 0.4530 -0.11642 2022 4 24 59693 0.0693 0.4542 -0.11643 2022 4 25 59694 0.0710 0.4553 -0.11661 2022 4 26 59695 0.0727 0.4563 -0.11698 2022 4 27 59696 0.0744 0.4574 -0.11751 2022 4 28 59697 0.0762 0.4584 -0.11812 2022 4 29 59698 0.0779 0.4594 -0.11873 2022 4 30 59699 0.0797 0.4604 -0.11924 2022 5 1 59700 0.0815 0.4613 -0.11958 2022 5 2 59701 0.0834 0.4622 -0.11972 2022 5 3 59702 0.0852 0.4631 -0.11965 2022 5 4 59703 0.0870 0.4640 -0.11938 2022 5 5 59704 0.0889 0.4648 -0.11898 2022 5 6 59705 0.0908 0.4656 -0.11849 2022 5 7 59706 0.0927 0.4664 -0.11801 2022 5 8 59707 0.0946 0.4671 -0.11759 2022 5 9 59708 0.0965 0.4678 -0.11731 2022 5 10 59709 0.0985 0.4685 -0.11721 2022 5 11 59710 0.1004 0.4692 -0.11733 2022 5 12 59711 0.1024 0.4698 -0.11765 2022 5 13 59712 0.1044 0.4704 -0.11813 2022 5 14 59713 0.1063 0.4709 -0.11866 2022 5 15 59714 0.1083 0.4715 -0.11912 2022 5 16 59715 0.1103 0.4720 -0.11938 2022 5 17 59716 0.1123 0.4725 -0.11936 2022 5 18 59717 0.1144 0.4729 -0.11908 2022 5 19 59718 0.1164 0.4733 -0.11862 2022 5 20 59719 0.1184 0.4737 -0.11810 2022 5 21 59720 0.1205 0.4741 -0.11766 2022 5 22 59721 0.1225 0.4744 -0.11737 2022 5 23 59722 0.1245 0.4747 -0.11727 2022 5 24 59723 0.1266 0.4749 -0.11731 2022 5 25 59724 0.1287 0.4752 -0.11743 2022 5 26 59725 0.1307 0.4754 -0.11755 2022 5 27 59726 0.1328 0.4755 -0.11757 2022 5 28 59727 0.1349 0.4757 -0.11744 2022 5 29 59728 0.1369 0.4758 -0.11712 2022 5 30 59729 0.1390 0.4758 -0.11658 2022 5 31 59730 0.1411 0.4759 -0.11584 2022 6 1 59731 0.1432 0.4759 -0.11493 2022 6 2 59732 0.1452 0.4759 -0.11392 2022 6 3 59733 0.1473 0.4758 -0.11289 2022 6 4 59734 0.1494 0.4757 -0.11189 2022 6 5 59735 0.1514 0.4756 -0.11100 2022 6 6 59736 0.1535 0.4755 -0.11028 2022 6 7 59737 0.1556 0.4753 -0.10974 2022 6 8 59738 0.1576 0.4751 -0.10940 2022 6 9 59739 0.1597 0.4748 -0.10923 2022 6 10 59740 0.1617 0.4745 -0.10916 2022 6 11 59741 0.1638 0.4742 -0.10910 2022 6 12 59742 0.1658 0.4739 -0.10891 2022 6 13 59743 0.1679 0.4735 -0.10851 2022 6 14 59744 0.1699 0.4731 -0.10786 2022 6 15 59745 0.1719 0.4727 -0.10702 2022 6 16 59746 0.1739 0.4722 -0.10610 2022 6 17 59747 0.1759 0.4717 -0.10524 2022 6 18 59748 0.1779 0.4712 -0.10455 2022 6 19 59749 0.1799 0.4707 -0.10405 2022 6 20 59750 0.1819 0.4701 -0.10371 2022 6 21 59751 0.1838 0.4695 -0.10345 2022 6 22 59752 0.1858 0.4688 -0.10316 2022 6 23 59753 0.1877 0.4681 -0.10277 2022 6 24 59754 0.1896 0.4674 -0.10220 2022 6 25 59755 0.1916 0.4667 -0.10144 2022 6 26 59756 0.1935 0.4659 -0.10049 2022 6 27 59757 0.1953 0.4651 -0.09938 2022 6 28 59758 0.1972 0.4643 -0.09813 2022 6 29 59759 0.1991 0.4635 -0.09682 2022 6 30 59760 0.2009 0.4626 -0.09549 2022 7 1 59761 0.2027 0.4617 -0.09422 2022 7 2 59762 0.2045 0.4607 -0.09306 2022 7 3 59763 0.2063 0.4598 -0.09207 2022 7 4 59764 0.2081 0.4588 -0.09127 2022 7 5 59765 0.2098 0.4578 -0.09066 2022 7 6 59766 0.2116 0.4567 -0.09022 2022 7 7 59767 0.2133 0.4557 -0.08990 2022 7 8 59768 0.2150 0.4546 -0.08962 2022 7 9 59769 0.2167 0.4534 -0.08928 2022 7 10 59770 0.2183 0.4523 -0.08879 2022 7 11 59771 0.2200 0.4511 -0.08808 2022 7 12 59772 0.2216 0.4499 -0.08716 2022 7 13 59773 0.2232 0.4487 -0.08609 2022 7 14 59774 0.2247 0.4474 -0.08504 2022 7 15 59775 0.2263 0.4462 -0.08414 2022 7 16 59776 0.2278 0.4449 -0.08351 2022 7 17 59777 0.2293 0.4435 -0.08312 2022 7 18 59778 0.2308 0.4422 -0.08289 2022 7 19 59779 0.2322 0.4408 -0.08270 2022 7 20 59780 0.2336 0.4394 -0.08245 2022 7 21 59781 0.2350 0.4380 -0.08204 2022 7 22 59782 0.2364 0.4366 -0.08138 2022 7 23 59783 0.2378 0.4351 -0.08046 2022 7 24 59784 0.2391 0.4337 -0.07926 2022 7 25 59785 0.2404 0.4322 -0.07795 2022 7 26 59786 0.2416 0.4307 -0.07643 2022 7 27 59787 0.2429 0.4291 -0.07480 2022 7 28 59788 0.2441 0.4276 -0.07318 2022 7 29 59789 0.2453 0.4260 -0.07170 2022 7 30 59790 0.2464 0.4244 -0.07032 2022 7 31 59791 0.2476 0.4228 -0.06907 2022 8 1 59792 0.2487 0.4212 -0.06801 2022 8 2 59793 0.2497 0.4195 -0.06710 2022 8 3 59794 0.2508 0.4179 -0.06637 2022 8 4 59795 0.2518 0.4162 -0.06577 2022 8 5 59796 0.2528 0.4145 -0.06517 2022 8 6 59797 0.2537 0.4128 -0.06446 2022 8 7 59798 0.2546 0.4111 -0.06359 2022 8 8 59799 0.2555 0.4094 -0.06256 2022 8 9 59800 0.2564 0.4076 -0.06139 2022 8 10 59801 0.2572 0.4059 -0.06007 2022 8 11 59802 0.2580 0.4041 -0.05885 2022 8 12 59803 0.2587 0.4023 -0.05792 2022 8 13 59804 0.2595 0.4005 -0.05735 2022 8 14 59805 0.2602 0.3987 -0.05700 2022 8 15 59806 0.2608 0.3969 -0.05680 2022 8 16 59807 0.2614 0.3951 -0.05665 2022 8 17 59808 0.2620 0.3932 -0.05635 2022 8 18 59809 0.2626 0.3914 -0.05587 2022 8 19 59810 0.2631 0.3895 -0.05514 2022 8 20 59811 0.2636 0.3877 -0.05419 2022 8 21 59812 0.2641 0.3858 -0.05302 2022 8 22 59813 0.2645 0.3839 -0.05171 2022 8 23 59814 0.2649 0.3820 -0.05030 2022 8 24 59815 0.2653 0.3801 -0.04897 2022 8 25 59816 0.2656 0.3782 -0.04771 2022 8 26 59817 0.2659 0.3763 -0.04661 2022 8 27 59818 0.2662 0.3744 -0.04575 2022 8 28 59819 0.2664 0.3725 -0.04510 2022 8 29 59820 0.2666 0.3706 -0.04471 2022 8 30 59821 0.2667 0.3687 -0.04443 2022 8 31 59822 0.2669 0.3668 -0.04412 2022 9 1 59823 0.2669 0.3649 -0.04374 2022 9 2 59824 0.2670 0.3629 -0.04324 2022 9 3 59825 0.2670 0.3610 -0.04251 2022 9 4 59826 0.2670 0.3591 -0.04154 2022 9 5 59827 0.2669 0.3572 -0.04038 2022 9 6 59828 0.2669 0.3552 -0.03915 2022 9 7 59829 0.2667 0.3533 -0.03801 2022 9 8 59830 0.2666 0.3514 -0.03702 2022 9 9 59831 0.2664 0.3495 -0.03636 2022 9 10 59832 0.2662 0.3476 -0.03598 2022 9 11 59833 0.2659 0.3457 -0.03582 2022 9 12 59834 0.2656 0.3438 -0.03576 2022 9 13 59835 0.2653 0.3419 -0.03566 2022 9 14 59836 0.2650 0.3400 -0.03538 2022 9 15 59837 0.2646 0.3381 -0.03483 2022 9 16 59838 0.2641 0.3362 -0.03403 2022 9 17 59839 0.2637 0.3343 -0.03306 2022 9 18 59840 0.2632 0.3325 -0.03193 2022 9 19 59841 0.2627 0.3306 -0.03075 2022 9 20 59842 0.2621 0.3288 -0.02964 2022 9 21 59843 0.2615 0.3269 -0.02865 2022 9 22 59844 0.2609 0.3251 -0.02783 2022 9 23 59845 0.2602 0.3232 -0.02720 2022 9 24 59846 0.2595 0.3214 -0.02677 2022 9 25 59847 0.2588 0.3196 -0.02658 2022 9 26 59848 0.2581 0.3178 -0.02658 2022 9 27 59849 0.2573 0.3161 -0.02669 2022 9 28 59850 0.2565 0.3143 -0.02681 2022 9 29 59851 0.2556 0.3125 -0.02683 2022 9 30 59852 0.2547 0.3108 -0.02665 2022 10 1 59853 0.2538 0.3091 -0.02629 2022 10 2 59854 0.2529 0.3074 -0.02576 2022 10 3 59855 0.2519 0.3057 -0.02503 2022 10 4 59856 0.2509 0.3040 -0.02431 2022 10 5 59857 0.2499 0.3023 -0.02373 2022 10 6 59858 0.2488 0.3007 -0.02335 2022 10 7 59859 0.2477 0.2990 -0.02325 2022 10 8 59860 0.2466 0.2974 -0.02337 2022 10 9 59861 0.2455 0.2958 -0.02360 2022 10 10 59862 0.2443 0.2942 -0.02380 2022 10 11 59863 0.2431 0.2927 -0.02396 2022 10 12 59864 0.2418 0.2911 -0.02397 2022 10 13 59865 0.2406 0.2896 -0.02382 2022 10 14 59866 0.2393 0.2881 -0.02357 2022 10 15 59867 0.2380 0.2866 -0.02318 2022 10 16 59868 0.2367 0.2851 -0.02277 2022 10 17 59869 0.2353 0.2837 -0.02241 2022 10 18 59870 0.2339 0.2823 -0.02213 2022 10 19 59871 0.2325 0.2809 -0.02202 2022 10 20 59872 0.2311 0.2795 -0.02208 2022 10 21 59873 0.2296 0.2781 -0.02234 2022 10 22 59874 0.2281 0.2768 -0.02279 2022 10 23 59875 0.2266 0.2755 -0.02345 2022 10 24 59876 0.2251 0.2742 -0.02425 2022 10 25 59877 0.2235 0.2729 -0.02504 2022 10 26 59878 0.2219 0.2717 -0.02571 2022 10 27 59879 0.2203 0.2705 -0.02617 2022 10 28 59880 0.2187 0.2693 -0.02639 2022 10 29 59881 0.2171 0.2681 -0.02639 2022 10 30 59882 0.2154 0.2670 -0.02625 2022 10 31 59883 0.2138 0.2659 -0.02607 2022 11 1 59884 0.2121 0.2648 -0.02596 2022 11 2 59885 0.2103 0.2637 -0.02598 2022 11 3 59886 0.2086 0.2627 -0.02616 2022 11 4 59887 0.2069 0.2617 -0.02655 2022 11 5 59888 0.2051 0.2607 -0.02712 2022 11 6 59889 0.2033 0.2598 -0.02761 2022 11 7 59890 0.2015 0.2588 -0.02795 2022 11 8 59891 0.1997 0.2580 -0.02817 2022 11 9 59892 0.1979 0.2571 -0.02818 2022 11 10 59893 0.1960 0.2563 -0.02797 2022 11 11 59894 0.1941 0.2554 -0.02757 2022 11 12 59895 0.1923 0.2547 -0.02694 2022 11 13 59896 0.1904 0.2539 -0.02624 2022 11 14 59897 0.1885 0.2532 -0.02554 2022 11 15 59898 0.1866 0.2525 -0.02489 2022 11 16 59899 0.1846 0.2518 -0.02441 2022 11 17 59900 0.1827 0.2512 -0.02411 2022 11 18 59901 0.1808 0.2506 -0.02400 2022 11 19 59902 0.1788 0.2501 -0.02422 2022 11 20 59903 0.1768 0.2495 -0.02459 2022 11 21 59904 0.1749 0.2490 -0.02505 2022 11 22 59905 0.1729 0.2485 -0.02547 2022 11 23 59906 0.1709 0.2481 -0.02567 2022 11 24 59907 0.1689 0.2477 -0.02562 2022 11 25 59908 0.1669 0.2473 -0.02534 2022 11 26 59909 0.1649 0.2469 -0.02491 2022 11 27 59910 0.1629 0.2466 -0.02438 2022 11 28 59911 0.1609 0.2463 -0.02390 2022 11 29 59912 0.1589 0.2461 -0.02360 2022 11 30 59913 0.1568 0.2459 -0.02352 2022 12 1 59914 0.1548 0.2457 -0.02369 2022 12 2 59915 0.1528 0.2455 -0.02400 2022 12 3 59916 0.1507 0.2454 -0.02436 2022 12 4 59917 0.1487 0.2453 -0.02469 2022 12 5 59918 0.1467 0.2452 -0.02492 2022 12 6 59919 0.1446 0.2452 -0.02493 2022 12 7 59920 0.1426 0.2452 -0.02468 2022 12 8 59921 0.1406 0.2452 -0.02424 2022 12 9 59922 0.1385 0.2453 -0.02366 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) 59535 -112.87 0.64 -6.37 0.09 59536 -112.82 0.64 -6.19 0.09 59537 -112.69 0.64 -6.22 0.09 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59535 0.271 0.255 -0.076 0.092 59536 0.270 0.255 -0.027 0.092 59537 0.271 0.255 0.028 0.092 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).