********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 30 December 2021 Vol. XXXIV No. 052 ______________________________________________________________________ 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 24 59572 0.06850 .00009 0.26650 .00009 -0.107252 0.000020 21 12 25 59573 0.06617 .00009 0.26778 .00009 -0.107370 0.000016 21 12 26 59574 0.06430 .00009 0.26903 .00009 -0.107724 0.000015 21 12 27 59575 0.06274 .00009 0.27039 .00009 -0.108291 0.000016 21 12 28 59576 0.06106 .00009 0.27193 .00009 -0.108919 0.000016 21 12 29 59577 0.05929 .00009 0.27345 .00009 -0.109547 0.000016 21 12 30 59578 0.05771 .00009 0.27476 .00009 -0.110093 0.000014 _______________________________________________________________________ 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 = 0.1316 - 0.0387 cos A - 0.0819 sin A - 0.0330 cos C - 0.0095 sin C y = 0.3562 - 0.0753 cos A + 0.0314 sin A - 0.0095 cos C + 0.0330 sin C UT1-UTC = -0.1186 + 0.00020 (MJD - 59586) - (UT2-UT1) where A = 2*pi*(MJD-59578)/365.25 and C = 2*pi*(MJD-59578)/435. TAI-UTC(MJD 59579) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59578)**0.80 S t = 0.00025 (MJD-59578)**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 31 59579 0.0562 0.2760 -0.11039 2022 1 1 59580 0.0549 0.2772 -0.11042 2022 1 2 59581 0.0536 0.2783 -0.11022 2022 1 3 59582 0.0523 0.2796 -0.10989 2022 1 4 59583 0.0511 0.2808 -0.10959 2022 1 5 59584 0.0497 0.2820 -0.10944 2022 1 6 59585 0.0484 0.2833 -0.10947 2022 1 7 59586 0.0471 0.2846 -0.10969 2022 1 8 59587 0.0458 0.2859 -0.11001 2022 1 9 59588 0.0446 0.2872 -0.11036 2022 1 10 59589 0.0434 0.2885 -0.11066 2022 1 11 59590 0.0422 0.2898 -0.11087 2022 1 12 59591 0.0410 0.2911 -0.11096 2022 1 13 59592 0.0398 0.2924 -0.11091 2022 1 14 59593 0.0387 0.2937 -0.11070 2022 1 15 59594 0.0376 0.2951 -0.11037 2022 1 16 59595 0.0364 0.2964 -0.10993 2022 1 17 59596 0.0353 0.2978 -0.10948 2022 1 18 59597 0.0343 0.2992 -0.10905 2022 1 19 59598 0.0332 0.3007 -0.10872 2022 1 20 59599 0.0322 0.3021 -0.10854 2022 1 21 59600 0.0311 0.3036 -0.10857 2022 1 22 59601 0.0301 0.3052 -0.10880 2022 1 23 59602 0.0291 0.3067 -0.10921 2022 1 24 59603 0.0282 0.3082 -0.10971 2022 1 25 59604 0.0273 0.3098 -0.11022 2022 1 26 59605 0.0264 0.3114 -0.11064 2022 1 27 59606 0.0255 0.3130 -0.11088 2022 1 28 59607 0.0247 0.3146 -0.11089 2022 1 29 59608 0.0239 0.3162 -0.11069 2022 1 30 59609 0.0231 0.3179 -0.11036 2022 1 31 59610 0.0224 0.3196 -0.11001 2022 2 1 59611 0.0217 0.3212 -0.10978 2022 2 2 59612 0.0210 0.3230 -0.10975 2022 2 3 59613 0.0203 0.3247 -0.10992 2022 2 4 59614 0.0197 0.3264 -0.11025 2022 2 5 59615 0.0191 0.3281 -0.11067 2022 2 6 59616 0.0186 0.3299 -0.11106 2022 2 7 59617 0.0180 0.3316 -0.11134 2022 2 8 59618 0.0175 0.3334 -0.11147 2022 2 9 59619 0.0171 0.3352 -0.11143 2022 2 10 59620 0.0167 0.3369 -0.11121 2022 2 11 59621 0.0163 0.3387 -0.11084 2022 2 12 59622 0.0159 0.3405 -0.11036 2022 2 13 59623 0.0156 0.3423 -0.10982 2022 2 14 59624 0.0153 0.3441 -0.10931 2022 2 15 59625 0.0150 0.3460 -0.10889 2022 2 16 59626 0.0148 0.3478 -0.10863 2022 2 17 59627 0.0146 0.3496 -0.10859 2022 2 18 59628 0.0144 0.3514 -0.10877 2022 2 19 59629 0.0143 0.3533 -0.10915 2022 2 20 59630 0.0142 0.3551 -0.10967 2022 2 21 59631 0.0141 0.3570 -0.11022 2022 2 22 59632 0.0141 0.3588 -0.11071 2022 2 23 59633 0.0141 0.3607 -0.11104 2022 2 24 59634 0.0141 0.3625 -0.11114 2022 2 25 59635 0.0141 0.3643 -0.11104 2022 2 26 59636 0.0142 0.3662 -0.11080 2022 2 27 59637 0.0144 0.3681 -0.11052 2022 2 28 59638 0.0145 0.3699 -0.11033 2022 3 1 59639 0.0147 0.3718 -0.11033 2022 3 2 59640 0.0149 0.3736 -0.11056 2022 3 3 59641 0.0152 0.3755 -0.11099 2022 3 4 59642 0.0155 0.3773 -0.11156 2022 3 5 59643 0.0158 0.3791 -0.11215 2022 3 6 59644 0.0162 0.3810 -0.11268 2022 3 7 59645 0.0166 0.3828 -0.11306 2022 3 8 59646 0.0170 0.3846 -0.11327 2022 3 9 59647 0.0175 0.3865 -0.11328 2022 3 10 59648 0.0179 0.3883 -0.11312 2022 3 11 59649 0.0185 0.3901 -0.11283 2022 3 12 59650 0.0190 0.3919 -0.11247 2022 3 13 59651 0.0196 0.3937 -0.11212 2022 3 14 59652 0.0202 0.3955 -0.11184 2022 3 15 59653 0.0209 0.3973 -0.11170 2022 3 16 59654 0.0216 0.3991 -0.11177 2022 3 17 59655 0.0223 0.4009 -0.11207 2022 3 18 59656 0.0230 0.4026 -0.11261 2022 3 19 59657 0.0238 0.4044 -0.11332 2022 3 20 59658 0.0246 0.4061 -0.11410 2022 3 21 59659 0.0255 0.4078 -0.11483 2022 3 22 59660 0.0263 0.4096 -0.11541 2022 3 23 59661 0.0272 0.4113 -0.11576 2022 3 24 59662 0.0282 0.4130 -0.11589 2022 3 25 59663 0.0291 0.4146 -0.11585 2022 3 26 59664 0.0301 0.4163 -0.11574 2022 3 27 59665 0.0311 0.4180 -0.11569 2022 3 28 59666 0.0322 0.4196 -0.11580 2022 3 29 59667 0.0333 0.4212 -0.11613 2022 3 30 59668 0.0344 0.4228 -0.11668 2022 3 31 59669 0.0355 0.4244 -0.11740 2022 4 1 59670 0.0367 0.4260 -0.11821 2022 4 2 59671 0.0379 0.4276 -0.11899 2022 4 3 59672 0.0391 0.4291 -0.11967 2022 4 4 59673 0.0404 0.4307 -0.12017 2022 4 5 59674 0.0416 0.4322 -0.12048 2022 4 6 59675 0.0429 0.4337 -0.12059 2022 4 7 59676 0.0443 0.4351 -0.12054 2022 4 8 59677 0.0456 0.4366 -0.12038 2022 4 9 59678 0.0470 0.4380 -0.12019 2022 4 10 59679 0.0484 0.4394 -0.12002 2022 4 11 59680 0.0499 0.4408 -0.11997 2022 4 12 59681 0.0513 0.4422 -0.12008 2022 4 13 59682 0.0528 0.4436 -0.12041 2022 4 14 59683 0.0543 0.4449 -0.12097 2022 4 15 59684 0.0558 0.4462 -0.12174 2022 4 16 59685 0.0574 0.4475 -0.12262 2022 4 17 59686 0.0590 0.4488 -0.12350 2022 4 18 59687 0.0606 0.4500 -0.12424 2022 4 19 59688 0.0622 0.4512 -0.12474 2022 4 20 59689 0.0638 0.4524 -0.12498 2022 4 21 59690 0.0655 0.4536 -0.12499 2022 4 22 59691 0.0672 0.4547 -0.12487 2022 4 23 59692 0.0689 0.4559 -0.12475 2022 4 24 59693 0.0706 0.4570 -0.12473 2022 4 25 59694 0.0724 0.4580 -0.12489 2022 4 26 59695 0.0741 0.4591 -0.12524 2022 4 27 59696 0.0759 0.4601 -0.12575 2022 4 28 59697 0.0777 0.4611 -0.12634 2022 4 29 59698 0.0795 0.4621 -0.12691 2022 4 30 59699 0.0814 0.4630 -0.12740 2022 5 1 59700 0.0832 0.4639 -0.12771 2022 5 2 59701 0.0851 0.4648 -0.12782 2022 5 3 59702 0.0870 0.4657 -0.12772 2022 5 4 59703 0.0888 0.4665 -0.12743 2022 5 5 59704 0.0908 0.4673 -0.12700 2022 5 6 59705 0.0927 0.4681 -0.12648 2022 5 7 59706 0.0946 0.4688 -0.12597 2022 5 8 59707 0.0966 0.4695 -0.12552 2022 5 9 59708 0.0985 0.4702 -0.12521 2022 5 10 59709 0.1005 0.4709 -0.12508 2022 5 11 59710 0.1025 0.4715 -0.12516 2022 5 12 59711 0.1045 0.4721 -0.12545 2022 5 13 59712 0.1065 0.4727 -0.12590 2022 5 14 59713 0.1085 0.4732 -0.12640 2022 5 15 59714 0.1106 0.4737 -0.12683 2022 5 16 59715 0.1126 0.4742 -0.12706 2022 5 17 59716 0.1146 0.4747 -0.12702 2022 5 18 59717 0.1167 0.4751 -0.12671 2022 5 19 59718 0.1187 0.4755 -0.12622 2022 5 20 59719 0.1208 0.4758 -0.12568 2022 5 21 59720 0.1229 0.4762 -0.12521 2022 5 22 59721 0.1250 0.4765 -0.12491 2022 5 23 59722 0.1270 0.4767 -0.12478 2022 5 24 59723 0.1291 0.4769 -0.12481 2022 5 25 59724 0.1312 0.4771 -0.12492 2022 5 26 59725 0.1333 0.4773 -0.12502 2022 5 27 59726 0.1354 0.4775 -0.12503 2022 5 28 59727 0.1375 0.4776 -0.12490 2022 5 29 59728 0.1396 0.4776 -0.12457 2022 5 30 59729 0.1417 0.4777 -0.12402 2022 5 31 59730 0.1438 0.4777 -0.12328 2022 6 1 59731 0.1459 0.4777 -0.12237 2022 6 2 59732 0.1480 0.4776 -0.12136 2022 6 3 59733 0.1501 0.4775 -0.12033 2022 6 4 59734 0.1522 0.4774 -0.11933 2022 6 5 59735 0.1543 0.4773 -0.11845 2022 6 6 59736 0.1564 0.4771 -0.11772 2022 6 7 59737 0.1584 0.4769 -0.11718 2022 6 8 59738 0.1605 0.4766 -0.11684 2022 6 9 59739 0.1626 0.4764 -0.11666 2022 6 10 59740 0.1647 0.4761 -0.11658 2022 6 11 59741 0.1667 0.4757 -0.11649 2022 6 12 59742 0.1688 0.4754 -0.11627 2022 6 13 59743 0.1708 0.4750 -0.11581 2022 6 14 59744 0.1729 0.4745 -0.11509 2022 6 15 59745 0.1749 0.4741 -0.11415 2022 6 16 59746 0.1769 0.4736 -0.11310 2022 6 17 59747 0.1790 0.4730 -0.11211 2022 6 18 59748 0.1810 0.4725 -0.11126 2022 6 19 59749 0.1830 0.4719 -0.11062 2022 6 20 59750 0.1849 0.4713 -0.11014 2022 6 21 59751 0.1869 0.4706 -0.10977 2022 6 22 59752 0.1889 0.4700 -0.10939 2022 6 23 59753 0.1908 0.4693 -0.10893 2022 6 24 59754 0.1928 0.4685 -0.10832 2022 6 25 59755 0.1947 0.4678 -0.10751 2022 6 26 59756 0.1966 0.4670 -0.10649 2022 6 27 59757 0.1985 0.4661 -0.10527 2022 6 28 59758 0.2003 0.4653 -0.10387 2022 6 29 59759 0.2022 0.4644 -0.10236 2022 6 30 59760 0.2041 0.4635 -0.10080 2022 7 1 59761 0.2059 0.4626 -0.09926 2022 7 2 59762 0.2077 0.4616 -0.09780 2022 7 3 59763 0.2095 0.4606 -0.09649 2022 7 4 59764 0.2113 0.4596 -0.09535 2022 7 5 59765 0.2130 0.4585 -0.09439 2022 7 6 59766 0.2147 0.4575 -0.09360 2022 7 7 59767 0.2165 0.4564 -0.09294 2022 7 8 59768 0.2182 0.4552 -0.09234 2022 7 9 59769 0.2198 0.4541 -0.09170 2022 7 10 59770 0.2215 0.4529 -0.09094 2022 7 11 59771 0.2231 0.4517 -0.09000 2022 7 12 59772 0.2247 0.4505 -0.08889 2022 7 13 59773 0.2263 0.4492 -0.08768 2022 7 14 59774 0.2279 0.4479 -0.08650 2022 7 15 59775 0.2294 0.4466 -0.08546 2022 7 16 59776 0.2309 0.4453 -0.08463 2022 7 17 59777 0.2324 0.4440 -0.08400 2022 7 18 59778 0.2339 0.4426 -0.08348 2022 7 19 59779 0.2353 0.4412 -0.08298 2022 7 20 59780 0.2368 0.4398 -0.08238 2022 7 21 59781 0.2382 0.4383 -0.08162 2022 7 22 59782 0.2395 0.4369 -0.08066 2022 7 23 59783 0.2409 0.4354 -0.07950 2022 7 24 59784 0.2422 0.4339 -0.07817 2022 7 25 59785 0.2435 0.4324 -0.07670 2022 7 26 59786 0.2447 0.4308 -0.07516 2022 7 27 59787 0.2459 0.4293 -0.07362 2022 7 28 59788 0.2471 0.4277 -0.07216 2022 7 29 59789 0.2483 0.4261 -0.07084 2022 7 30 59790 0.2495 0.4245 -0.06970 2022 7 31 59791 0.2506 0.4228 -0.06877 2022 8 1 59792 0.2517 0.4212 -0.06805 2022 8 2 59793 0.2527 0.4195 -0.06753 2022 8 3 59794 0.2537 0.4178 -0.06714 2022 8 4 59795 0.2547 0.4161 -0.06680 2022 8 5 59796 0.2557 0.4144 -0.06643 2022 8 6 59797 0.2566 0.4127 -0.06593 2022 8 7 59798 0.2575 0.4109 -0.06524 2022 8 8 59799 0.2584 0.4091 -0.06433 2022 8 9 59800 0.2592 0.4074 -0.06329 2022 8 10 59801 0.2600 0.4056 -0.06223 2022 8 11 59802 0.2608 0.4038 -0.06131 2022 8 12 59803 0.2616 0.4020 -0.06065 2022 8 13 59804 0.2623 0.4002 -0.06029 2022 8 14 59805 0.2629 0.3983 -0.06011 2022 8 15 59806 0.2636 0.3965 -0.06004 2022 8 16 59807 0.2642 0.3946 -0.05996 2022 8 17 59808 0.2648 0.3927 -0.05976 2022 8 18 59809 0.2653 0.3909 -0.05940 2022 8 19 59810 0.2658 0.3890 -0.05890 2022 8 20 59811 0.2663 0.3871 -0.05825 2022 8 21 59812 0.2667 0.3852 -0.05744 2022 8 22 59813 0.2671 0.3833 -0.05649 2022 8 23 59814 0.2675 0.3814 -0.05547 2022 8 24 59815 0.2679 0.3795 -0.05448 2022 8 25 59816 0.2682 0.3775 -0.05358 2022 8 26 59817 0.2684 0.3756 -0.05284 2022 8 27 59818 0.2687 0.3737 -0.05244 2022 8 28 59819 0.2689 0.3717 -0.05218 2022 8 29 59820 0.2690 0.3698 -0.05216 2022 8 30 59821 0.2692 0.3679 -0.05225 2022 8 31 59822 0.2693 0.3659 -0.05243 2022 9 1 59823 0.2693 0.3640 -0.05255 2022 9 2 59824 0.2694 0.3620 -0.05249 2022 9 3 59825 0.2693 0.3601 -0.05219 2022 9 4 59826 0.2693 0.3581 -0.05161 2022 9 5 59827 0.2692 0.3562 -0.05092 2022 9 6 59828 0.2691 0.3542 -0.05008 2022 9 7 59829 0.2690 0.3523 -0.04925 2022 9 8 59830 0.2688 0.3503 -0.04859 2022 9 9 59831 0.2686 0.3484 -0.04824 2022 9 10 59832 0.2683 0.3465 -0.04812 2022 9 11 59833 0.2680 0.3445 -0.04813 2022 9 12 59834 0.2677 0.3426 -0.04820 2022 9 13 59835 0.2674 0.3407 -0.04819 2022 9 14 59836 0.2670 0.3388 -0.04809 2022 9 15 59837 0.2666 0.3369 -0.04785 2022 9 16 59838 0.2661 0.3349 -0.04744 2022 9 17 59839 0.2656 0.3330 -0.04686 2022 9 18 59840 0.2651 0.3311 -0.04617 2022 9 19 59841 0.2645 0.3293 -0.04545 2022 9 20 59842 0.2640 0.3274 -0.04473 2022 9 21 59843 0.2633 0.3255 -0.04397 2022 9 22 59844 0.2627 0.3237 -0.04334 2022 9 23 59845 0.2620 0.3218 -0.04295 2022 9 24 59846 0.2613 0.3200 -0.04290 2022 9 25 59847 0.2605 0.3181 -0.04303 2022 9 26 59848 0.2597 0.3163 -0.04337 2022 9 27 59849 0.2589 0.3145 -0.04385 2022 9 28 59850 0.2581 0.3127 -0.04428 2022 9 29 59851 0.2572 0.3110 -0.04459 2022 9 30 59852 0.2563 0.3092 -0.04469 2022 10 1 59853 0.2554 0.3074 -0.04453 2022 10 2 59854 0.2544 0.3057 -0.04415 2022 10 3 59855 0.2534 0.3040 -0.04365 2022 10 4 59856 0.2524 0.3023 -0.04312 2022 10 5 59857 0.2513 0.3006 -0.04279 2022 10 6 59858 0.2502 0.2989 -0.04268 2022 10 7 59859 0.2491 0.2973 -0.04283 2022 10 8 59860 0.2479 0.2956 -0.04325 2022 10 9 59861 0.2468 0.2940 -0.04379 2022 10 10 59862 0.2456 0.2924 -0.04439 2022 10 11 59863 0.2443 0.2908 -0.04483 2022 10 12 59864 0.2431 0.2892 -0.04499 2022 10 13 59865 0.2418 0.2877 -0.04488 2022 10 14 59866 0.2405 0.2862 -0.04454 2022 10 15 59867 0.2391 0.2847 -0.04398 2022 10 16 59868 0.2377 0.2832 -0.04327 2022 10 17 59869 0.2364 0.2817 -0.04247 2022 10 18 59870 0.2349 0.2803 -0.04171 2022 10 19 59871 0.2335 0.2788 -0.04107 2022 10 20 59872 0.2320 0.2774 -0.04056 2022 10 21 59873 0.2305 0.2761 -0.04030 2022 10 22 59874 0.2290 0.2747 -0.04026 2022 10 23 59875 0.2275 0.2734 -0.04045 2022 10 24 59876 0.2259 0.2721 -0.04078 2022 10 25 59877 0.2243 0.2708 -0.04115 2022 10 26 59878 0.2227 0.2695 -0.04142 2022 10 27 59879 0.2211 0.2683 -0.04144 2022 10 28 59880 0.2195 0.2671 -0.04118 2022 10 29 59881 0.2178 0.2659 -0.04073 2022 10 30 59882 0.2161 0.2647 -0.04011 2022 10 31 59883 0.2144 0.2636 -0.03949 2022 11 1 59884 0.2127 0.2625 -0.03904 2022 11 2 59885 0.2109 0.2614 -0.03882 2022 11 3 59886 0.2092 0.2604 -0.03887 2022 11 4 59887 0.2074 0.2594 -0.03911 2022 11 5 59888 0.2056 0.2584 -0.03949 2022 11 6 59889 0.2038 0.2574 -0.03991 2022 11 7 59890 0.2020 0.2564 -0.04027 2022 11 8 59891 0.2001 0.2555 -0.04047 2022 11 9 59892 0.1983 0.2547 -0.04047 2022 11 10 59893 0.1964 0.2538 -0.04025 2022 11 11 59894 0.1945 0.2530 -0.03982 2022 11 12 59895 0.1926 0.2522 -0.03928 2022 11 13 59896 0.1907 0.2514 -0.03867 2022 11 14 59897 0.1888 0.2507 -0.03796 2022 11 15 59898 0.1868 0.2500 -0.03730 2022 11 16 59899 0.1849 0.2493 -0.03677 2022 11 17 59900 0.1829 0.2486 -0.03638 2022 11 18 59901 0.1810 0.2480 -0.03620 2022 11 19 59902 0.1790 0.2474 -0.03620 2022 11 20 59903 0.1770 0.2469 -0.03634 2022 11 21 59904 0.1750 0.2464 -0.03652 2022 11 22 59905 0.1730 0.2459 -0.03673 2022 11 23 59906 0.1710 0.2454 -0.03684 2022 11 24 59907 0.1690 0.2450 -0.03679 2022 11 25 59908 0.1669 0.2446 -0.03661 2022 11 26 59909 0.1649 0.2442 -0.03628 2022 11 27 59910 0.1629 0.2439 -0.03597 2022 11 28 59911 0.1608 0.2436 -0.03580 2022 11 29 59912 0.1588 0.2433 -0.03583 2022 11 30 59913 0.1567 0.2431 -0.03616 2022 12 1 59914 0.1547 0.2429 -0.03669 2022 12 2 59915 0.1526 0.2427 -0.03734 2022 12 3 59916 0.1506 0.2425 -0.03801 2022 12 4 59917 0.1485 0.2424 -0.03863 2022 12 5 59918 0.1465 0.2424 -0.03910 2022 12 6 59919 0.1444 0.2423 -0.03932 2022 12 7 59920 0.1424 0.2423 -0.03929 2022 12 8 59921 0.1403 0.2423 -0.03902 2022 12 9 59922 0.1383 0.2424 -0.03859 2022 12 10 59923 0.1362 0.2424 -0.03805 2022 12 11 59924 0.1342 0.2426 -0.03751 2022 12 12 59925 0.1322 0.2427 -0.03700 2022 12 13 59926 0.1301 0.2429 -0.03656 2022 12 14 59927 0.1281 0.2431 -0.03621 2022 12 15 59928 0.1261 0.2433 -0.03597 2022 12 16 59929 0.1240 0.2436 -0.03591 2022 12 17 59930 0.1220 0.2439 -0.03604 2022 12 18 59931 0.1200 0.2442 -0.03616 2022 12 19 59932 0.1180 0.2446 -0.03622 2022 12 20 59933 0.1160 0.2450 -0.03623 2022 12 21 59934 0.1141 0.2454 -0.03608 2022 12 22 59935 0.1121 0.2459 -0.03571 2022 12 23 59936 0.1101 0.2464 -0.03514 2022 12 24 59937 0.1082 0.2469 -0.03437 2022 12 25 59938 0.1062 0.2475 -0.03363 2022 12 26 59939 0.1043 0.2481 -0.03305 2022 12 27 59940 0.1024 0.2487 -0.03268 2022 12 28 59941 0.1005 0.2493 -0.03258 2022 12 29 59942 0.0986 0.2500 -0.03265 2022 12 30 59943 0.0967 0.2507 -0.03275 These predictions are based on all announced leap seconds. 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).