********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 28 October 2021 Vol. XXXIV No. 043 ______________________________________________________________________ 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. * * * * 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 10 22 59509 0.18505 .00009 0.25891 .00009 -0.106142 0.000010 21 10 23 59510 0.18385 .00009 0.25801 .00009 -0.106161 0.000012 21 10 24 59511 0.18229 .00009 0.25686 .00009 -0.105928 0.000016 21 10 25 59512 0.18080 .00009 0.25580 .00009 -0.105562 0.000021 21 10 26 59513 0.17933 .00009 0.25512 .00009 -0.105065 0.000023 21 10 27 59514 0.17739 .00009 0.25464 .00009 -0.104569 0.000026 21 10 28 59515 0.17501 .00009 0.25424 .00009 -0.104162 0.000039 _______________________________________________________________________ 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 = 0.1404 + 0.0751 cos A - 0.0893 sin A - 0.0408 cos C - 0.0287 sin C y = 0.3590 - 0.0752 cos A - 0.0756 sin A - 0.0287 cos C + 0.0408 sin C UT1-UTC = -0.1261 + 0.00022 (MJD - 59523) - (UT2-UT1) where A = 2*pi*(MJD-59515)/365.25 and C = 2*pi*(MJD-59515)/435. TAI-UTC(MJD 59516) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59515)**0.80 S t = 0.00025 (MJD-59515)**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 10 29 59516 0.1726 0.2538 -0.10383 2021 10 30 59517 0.1703 0.2533 -0.10367 2021 10 31 59518 0.1681 0.2526 -0.10374 2021 11 1 59519 0.1660 0.2519 -0.10410 2021 11 2 59520 0.1641 0.2512 -0.10471 2021 11 3 59521 0.1623 0.2506 -0.10547 2021 11 4 59522 0.1606 0.2501 -0.10623 2021 11 5 59523 0.1588 0.2497 -0.10684 2021 11 6 59524 0.1569 0.2493 -0.10723 2021 11 7 59525 0.1551 0.2490 -0.10737 2021 11 8 59526 0.1532 0.2487 -0.10728 2021 11 9 59527 0.1513 0.2484 -0.10704 2021 11 10 59528 0.1493 0.2481 -0.10680 2021 11 11 59529 0.1473 0.2479 -0.10663 2021 11 12 59530 0.1454 0.2477 -0.10660 2021 11 13 59531 0.1434 0.2475 -0.10674 2021 11 14 59532 0.1414 0.2474 -0.10700 2021 11 15 59533 0.1395 0.2472 -0.10733 2021 11 16 59534 0.1376 0.2470 -0.10764 2021 11 17 59535 0.1358 0.2469 -0.10789 2021 11 18 59536 0.1339 0.2468 -0.10804 2021 11 19 59537 0.1320 0.2468 -0.10802 2021 11 20 59538 0.1301 0.2468 -0.10782 2021 11 21 59539 0.1283 0.2468 -0.10744 2021 11 22 59540 0.1263 0.2469 -0.10691 2021 11 23 59541 0.1244 0.2470 -0.10630 2021 11 24 59542 0.1225 0.2472 -0.10568 2021 11 25 59543 0.1205 0.2473 -0.10513 2021 11 26 59544 0.1186 0.2475 -0.10470 2021 11 27 59545 0.1167 0.2477 -0.10447 2021 11 28 59546 0.1147 0.2479 -0.10445 2021 11 29 59547 0.1128 0.2482 -0.10466 2021 11 30 59548 0.1109 0.2484 -0.10505 2021 12 1 59549 0.1090 0.2487 -0.10553 2021 12 2 59550 0.1071 0.2491 -0.10597 2021 12 3 59551 0.1052 0.2495 -0.10625 2021 12 4 59552 0.1033 0.2499 -0.10626 2021 12 5 59553 0.1014 0.2503 -0.10601 2021 12 6 59554 0.0995 0.2508 -0.10558 2021 12 7 59555 0.0976 0.2513 -0.10511 2021 12 8 59556 0.0957 0.2519 -0.10470 2021 12 9 59557 0.0938 0.2524 -0.10446 2021 12 10 59558 0.0919 0.2530 -0.10437 2021 12 11 59559 0.0900 0.2536 -0.10443 2021 12 12 59560 0.0882 0.2543 -0.10455 2021 12 13 59561 0.0863 0.2549 -0.10468 2021 12 14 59562 0.0845 0.2556 -0.10474 2021 12 15 59563 0.0827 0.2563 -0.10469 2021 12 16 59564 0.0808 0.2571 -0.10450 2021 12 17 59565 0.0790 0.2579 -0.10414 2021 12 18 59566 0.0772 0.2587 -0.10361 2021 12 19 59567 0.0755 0.2595 -0.10296 2021 12 20 59568 0.0737 0.2604 -0.10222 2021 12 21 59569 0.0719 0.2613 -0.10148 2021 12 22 59570 0.0702 0.2622 -0.10080 2021 12 23 59571 0.0685 0.2632 -0.10025 2021 12 24 59572 0.0668 0.2642 -0.09989 2021 12 25 59573 0.0651 0.2652 -0.09974 2021 12 26 59574 0.0634 0.2662 -0.09981 2021 12 27 59575 0.0617 0.2672 -0.10009 2021 12 28 59576 0.0601 0.2683 -0.10049 2021 12 29 59577 0.0585 0.2694 -0.10093 2021 12 30 59578 0.0569 0.2705 -0.10127 2021 12 31 59579 0.0553 0.2717 -0.10141 2022 1 1 59580 0.0537 0.2729 -0.10132 2022 1 2 59581 0.0521 0.2741 -0.10102 2022 1 3 59582 0.0506 0.2753 -0.10063 2022 1 4 59583 0.0491 0.2765 -0.10027 2022 1 5 59584 0.0476 0.2778 -0.10006 2022 1 6 59585 0.0461 0.2791 -0.10004 2022 1 7 59586 0.0447 0.2804 -0.10019 2022 1 8 59587 0.0433 0.2818 -0.10045 2022 1 9 59588 0.0419 0.2831 -0.10072 2022 1 10 59589 0.0405 0.2845 -0.10094 2022 1 11 59590 0.0391 0.2859 -0.10104 2022 1 12 59591 0.0378 0.2873 -0.10099 2022 1 13 59592 0.0365 0.2888 -0.10077 2022 1 14 59593 0.0352 0.2903 -0.10039 2022 1 15 59594 0.0339 0.2917 -0.09987 2022 1 16 59595 0.0327 0.2932 -0.09926 2022 1 17 59596 0.0315 0.2948 -0.09862 2022 1 18 59597 0.0303 0.2963 -0.09803 2022 1 19 59598 0.0292 0.2979 -0.09755 2022 1 20 59599 0.0280 0.2995 -0.09724 2022 1 21 59600 0.0269 0.3011 -0.09714 2022 1 22 59601 0.0259 0.3027 -0.09725 2022 1 23 59602 0.0248 0.3043 -0.09756 2022 1 24 59603 0.0238 0.3059 -0.09799 2022 1 25 59604 0.0228 0.3076 -0.09845 2022 1 26 59605 0.0219 0.3093 -0.09885 2022 1 27 59606 0.0209 0.3110 -0.09909 2022 1 28 59607 0.0200 0.3127 -0.09913 2022 1 29 59608 0.0191 0.3144 -0.09897 2022 1 30 59609 0.0183 0.3162 -0.09870 2022 1 31 59610 0.0175 0.3179 -0.09844 2022 2 1 59611 0.0167 0.3197 -0.09831 2022 2 2 59612 0.0160 0.3214 -0.09839 2022 2 3 59613 0.0152 0.3232 -0.09869 2022 2 4 59614 0.0145 0.3250 -0.09915 2022 2 5 59615 0.0139 0.3268 -0.09969 2022 2 6 59616 0.0133 0.3287 -0.10020 2022 2 7 59617 0.0127 0.3305 -0.10060 2022 2 8 59618 0.0121 0.3323 -0.10086 2022 2 9 59619 0.0116 0.3342 -0.10094 2022 2 10 59620 0.0111 0.3360 -0.10084 2022 2 11 59621 0.0106 0.3379 -0.10059 2022 2 12 59622 0.0102 0.3398 -0.10024 2022 2 13 59623 0.0098 0.3417 -0.09984 2022 2 14 59624 0.0094 0.3435 -0.09940 2022 2 15 59625 0.0091 0.3454 -0.09907 2022 2 16 59626 0.0088 0.3473 -0.09890 2022 2 17 59627 0.0085 0.3492 -0.09895 2022 2 18 59628 0.0083 0.3511 -0.09923 2022 2 19 59629 0.0081 0.3531 -0.09971 2022 2 20 59630 0.0079 0.3550 -0.10033 2022 2 21 59631 0.0078 0.3569 -0.10099 2022 2 22 59632 0.0077 0.3588 -0.10158 2022 2 23 59633 0.0076 0.3607 -0.10202 2022 2 24 59634 0.0076 0.3627 -0.10225 2022 2 25 59635 0.0076 0.3646 -0.10228 2022 2 26 59636 0.0076 0.3665 -0.10217 2022 2 27 59637 0.0077 0.3684 -0.10203 2022 2 28 59638 0.0078 0.3704 -0.10198 2022 3 1 59639 0.0080 0.3723 -0.10212 2022 3 2 59640 0.0081 0.3742 -0.10250 2022 3 3 59641 0.0084 0.3761 -0.10308 2022 3 4 59642 0.0086 0.3781 -0.10380 2022 3 5 59643 0.0089 0.3800 -0.10455 2022 3 6 59644 0.0092 0.3819 -0.10524 2022 3 7 59645 0.0095 0.3838 -0.10578 2022 3 8 59646 0.0099 0.3857 -0.10614 2022 3 9 59647 0.0103 0.3876 -0.10631 2022 3 10 59648 0.0108 0.3895 -0.10631 2022 3 11 59649 0.0112 0.3914 -0.10618 2022 3 12 59650 0.0118 0.3933 -0.10597 2022 3 13 59651 0.0123 0.3951 -0.10576 2022 3 14 59652 0.0129 0.3970 -0.10563 2022 3 15 59653 0.0135 0.3988 -0.10564 2022 3 16 59654 0.0141 0.4007 -0.10585 2022 3 17 59655 0.0148 0.4025 -0.10630 2022 3 18 59656 0.0155 0.4044 -0.10699 2022 3 19 59657 0.0163 0.4062 -0.10784 2022 3 20 59658 0.0171 0.4080 -0.10877 2022 3 21 59659 0.0179 0.4098 -0.10964 2022 3 22 59660 0.0187 0.4116 -0.11036 2022 3 23 59661 0.0196 0.4133 -0.11084 2022 3 24 59662 0.0205 0.4151 -0.11109 2022 3 25 59663 0.0214 0.4169 -0.11117 2022 3 26 59664 0.0224 0.4186 -0.11117 2022 3 27 59665 0.0234 0.4203 -0.11121 2022 3 28 59666 0.0244 0.4220 -0.11140 2022 3 29 59667 0.0255 0.4237 -0.11181 2022 3 30 59668 0.0266 0.4254 -0.11242 2022 3 31 59669 0.0277 0.4270 -0.11320 2022 4 1 59670 0.0288 0.4287 -0.11405 2022 4 2 59671 0.0300 0.4303 -0.11487 2022 4 3 59672 0.0312 0.4319 -0.11557 2022 4 4 59673 0.0324 0.4335 -0.11610 2022 4 5 59674 0.0337 0.4351 -0.11642 2022 4 6 59675 0.0350 0.4366 -0.11655 2022 4 7 59676 0.0363 0.4382 -0.11650 2022 4 8 59677 0.0377 0.4397 -0.11636 2022 4 9 59678 0.0390 0.4412 -0.11617 2022 4 10 59679 0.0404 0.4426 -0.11601 2022 4 11 59680 0.0419 0.4441 -0.11596 2022 4 12 59681 0.0433 0.4455 -0.11609 2022 4 13 59682 0.0448 0.4469 -0.11644 2022 4 14 59683 0.0463 0.4483 -0.11702 2022 4 15 59684 0.0478 0.4497 -0.11781 2022 4 16 59685 0.0494 0.4511 -0.11872 2022 4 17 59686 0.0510 0.4524 -0.11963 2022 4 18 59687 0.0526 0.4537 -0.12041 2022 4 19 59688 0.0542 0.4549 -0.12097 2022 4 20 59689 0.0558 0.4562 -0.12126 2022 4 21 59690 0.0575 0.4574 -0.12133 2022 4 22 59691 0.0592 0.4586 -0.12128 2022 4 23 59692 0.0609 0.4598 -0.12125 2022 4 24 59693 0.0626 0.4610 -0.12133 2022 4 25 59694 0.0644 0.4621 -0.12160 2022 4 26 59695 0.0662 0.4632 -0.12209 2022 4 27 59696 0.0680 0.4643 -0.12275 2022 4 28 59697 0.0698 0.4653 -0.12353 2022 4 29 59698 0.0716 0.4663 -0.12432 2022 4 30 59699 0.0735 0.4673 -0.12506 2022 5 1 59700 0.0753 0.4683 -0.12568 2022 5 2 59701 0.0772 0.4692 -0.12613 2022 5 3 59702 0.0791 0.4701 -0.12641 2022 5 4 59703 0.0810 0.4710 -0.12655 2022 5 5 59704 0.0830 0.4719 -0.12658 2022 5 6 59705 0.0849 0.4727 -0.12657 2022 5 7 59706 0.0869 0.4735 -0.12655 2022 5 8 59707 0.0889 0.4742 -0.12661 2022 5 9 59708 0.0908 0.4750 -0.12678 2022 5 10 59709 0.0928 0.4757 -0.12710 2022 5 11 59710 0.0949 0.4764 -0.12759 2022 5 12 59711 0.0969 0.4770 -0.12825 2022 5 13 59712 0.0989 0.4776 -0.12900 2022 5 14 59713 0.1010 0.4782 -0.12975 2022 5 15 59714 0.1030 0.4788 -0.13037 2022 5 16 59715 0.1051 0.4793 -0.13072 2022 5 17 59716 0.1072 0.4798 -0.13075 2022 5 18 59717 0.1093 0.4803 -0.13047 2022 5 19 59718 0.1114 0.4807 -0.12999 2022 5 20 59719 0.1135 0.4811 -0.12945 2022 5 21 59720 0.1156 0.4815 -0.12898 2022 5 22 59721 0.1177 0.4818 -0.12869 2022 5 23 59722 0.1198 0.4821 -0.12859 2022 5 24 59723 0.1220 0.4824 -0.12865 2022 5 25 59724 0.1241 0.4826 -0.12880 2022 5 26 59725 0.1262 0.4828 -0.12895 2022 5 27 59726 0.1284 0.4830 -0.12900 2022 5 28 59727 0.1305 0.4832 -0.12888 2022 5 29 59728 0.1327 0.4833 -0.12854 2022 5 30 59729 0.1348 0.4834 -0.12795 2022 5 31 59730 0.1370 0.4834 -0.12713 2022 6 1 59731 0.1391 0.4834 -0.12613 2022 6 2 59732 0.1413 0.4834 -0.12502 2022 6 3 59733 0.1434 0.4834 -0.12389 2022 6 4 59734 0.1456 0.4833 -0.12281 2022 6 5 59735 0.1477 0.4832 -0.12186 2022 6 6 59736 0.1499 0.4830 -0.12108 2022 6 7 59737 0.1520 0.4829 -0.12047 2022 6 8 59738 0.1541 0.4827 -0.11997 2022 6 9 59739 0.1563 0.4824 -0.11960 2022 6 10 59740 0.1584 0.4822 -0.11930 2022 6 11 59741 0.1605 0.4819 -0.11895 2022 6 12 59742 0.1627 0.4815 -0.11842 2022 6 13 59743 0.1648 0.4812 -0.11761 2022 6 14 59744 0.1669 0.4808 -0.11653 2022 6 15 59745 0.1690 0.4803 -0.11524 2022 6 16 59746 0.1711 0.4799 -0.11380 2022 6 17 59747 0.1731 0.4794 -0.11246 2022 6 18 59748 0.1752 0.4789 -0.11127 2022 6 19 59749 0.1773 0.4783 -0.11031 2022 6 20 59750 0.1793 0.4778 -0.10954 2022 6 21 59751 0.1814 0.4771 -0.10888 2022 6 22 59752 0.1834 0.4765 -0.10820 2022 6 23 59753 0.1854 0.4758 -0.10738 2022 6 24 59754 0.1874 0.4751 -0.10638 2022 6 25 59755 0.1894 0.4744 -0.10522 2022 6 26 59756 0.1914 0.4736 -0.10381 2022 6 27 59757 0.1934 0.4728 -0.10224 2022 6 28 59758 0.1953 0.4720 -0.10057 2022 6 29 59759 0.1973 0.4712 -0.09882 2022 6 30 59760 0.1992 0.4703 -0.09707 2022 7 1 59761 0.2011 0.4694 -0.09533 2022 7 2 59762 0.2030 0.4685 -0.09368 2022 7 3 59763 0.2048 0.4675 -0.09220 2022 7 4 59764 0.2067 0.4665 -0.09092 2022 7 5 59765 0.2085 0.4655 -0.08983 2022 7 6 59766 0.2104 0.4644 -0.08895 2022 7 7 59767 0.2121 0.4634 -0.08817 2022 7 8 59768 0.2139 0.4623 -0.08742 2022 7 9 59769 0.2157 0.4611 -0.08663 2022 7 10 59770 0.2174 0.4600 -0.08569 2022 7 11 59771 0.2191 0.4588 -0.08439 2022 7 12 59772 0.2208 0.4576 -0.08287 2022 7 13 59773 0.2225 0.4564 -0.08120 2022 7 14 59774 0.2241 0.4551 -0.07950 2022 7 15 59775 0.2258 0.4539 -0.07796 2022 7 16 59776 0.2274 0.4526 -0.07664 2022 7 17 59777 0.2290 0.4512 -0.07554 2022 7 18 59778 0.2305 0.4499 -0.07455 2022 7 19 59779 0.2320 0.4485 -0.07370 2022 7 20 59780 0.2335 0.4471 -0.07281 2022 7 21 59781 0.2350 0.4457 -0.07186 2022 7 22 59782 0.2365 0.4443 -0.07085 2022 7 23 59783 0.2379 0.4428 -0.06966 2022 7 24 59784 0.2393 0.4413 -0.06839 2022 7 25 59785 0.2407 0.4398 -0.06703 2022 7 26 59786 0.2420 0.4383 -0.06560 2022 7 27 59787 0.2433 0.4368 -0.06420 2022 7 28 59788 0.2446 0.4352 -0.06282 2022 7 29 59789 0.2459 0.4336 -0.06154 2022 7 30 59790 0.2471 0.4320 -0.06039 2022 7 31 59791 0.2483 0.4304 -0.05945 2022 8 1 59792 0.2495 0.4288 -0.05873 2022 8 2 59793 0.2507 0.4271 -0.05814 2022 8 3 59794 0.2518 0.4255 -0.05764 2022 8 4 59795 0.2529 0.4238 -0.05717 2022 8 5 59796 0.2539 0.4221 -0.05665 2022 8 6 59797 0.2549 0.4204 -0.05600 2022 8 7 59798 0.2559 0.4187 -0.05518 2022 8 8 59799 0.2569 0.4169 -0.05414 2022 8 9 59800 0.2578 0.4152 -0.05291 2022 8 10 59801 0.2587 0.4134 -0.05160 2022 8 11 59802 0.2596 0.4116 -0.05032 2022 8 12 59803 0.2604 0.4098 -0.04928 2022 8 13 59804 0.2612 0.4080 -0.04855 2022 8 14 59805 0.2620 0.4062 -0.04794 2022 8 15 59806 0.2627 0.4044 -0.04738 2022 8 16 59807 0.2634 0.4025 -0.04687 2022 8 17 59808 0.2641 0.4007 -0.04627 2022 8 18 59809 0.2647 0.3988 -0.04550 2022 8 19 59810 0.2653 0.3970 -0.04453 2022 8 20 59811 0.2659 0.3951 -0.04329 2022 8 21 59812 0.2664 0.3932 -0.04189 2022 8 22 59813 0.2669 0.3913 -0.04035 2022 8 23 59814 0.2673 0.3894 -0.03876 2022 8 24 59815 0.2678 0.3875 -0.03723 2022 8 25 59816 0.2682 0.3856 -0.03580 2022 8 26 59817 0.2685 0.3837 -0.03451 2022 8 27 59818 0.2688 0.3818 -0.03357 2022 8 28 59819 0.2691 0.3798 -0.03285 2022 8 29 59820 0.2694 0.3779 -0.03235 2022 8 30 59821 0.2696 0.3760 -0.03198 2022 8 31 59822 0.2698 0.3741 -0.03162 2022 9 1 59823 0.2699 0.3721 -0.03120 2022 9 2 59824 0.2700 0.3702 -0.03068 2022 9 3 59825 0.2701 0.3682 -0.03003 2022 9 4 59826 0.2702 0.3663 -0.02915 2022 9 5 59827 0.2702 0.3644 -0.02811 2022 9 6 59828 0.2701 0.3624 -0.02702 2022 9 7 59829 0.2701 0.3605 -0.02601 2022 9 8 59830 0.2700 0.3586 -0.02523 2022 9 9 59831 0.2699 0.3566 -0.02474 2022 9 10 59832 0.2697 0.3547 -0.02454 2022 9 11 59833 0.2695 0.3528 -0.02458 2022 9 12 59834 0.2692 0.3509 -0.02474 2022 9 13 59835 0.2690 0.3489 -0.02484 2022 9 14 59836 0.2687 0.3470 -0.02475 2022 9 15 59837 0.2683 0.3451 -0.02446 2022 9 16 59838 0.2679 0.3432 -0.02399 2022 9 17 59839 0.2675 0.3413 -0.02335 2022 9 18 59840 0.2671 0.3395 -0.02258 2022 9 19 59841 0.2666 0.3376 -0.02181 2022 9 20 59842 0.2661 0.3357 -0.02101 2022 9 21 59843 0.2656 0.3338 -0.02024 2022 9 22 59844 0.2650 0.3320 -0.01959 2022 9 23 59845 0.2644 0.3301 -0.01911 2022 9 24 59846 0.2637 0.3283 -0.01887 2022 9 25 59847 0.2630 0.3265 -0.01875 2022 9 26 59848 0.2623 0.3247 -0.01887 2022 9 27 59849 0.2616 0.3229 -0.01911 2022 9 28 59850 0.2608 0.3211 -0.01934 2022 9 29 59851 0.2600 0.3193 -0.01946 2022 9 30 59852 0.2591 0.3176 -0.01940 2022 10 1 59853 0.2583 0.3158 -0.01922 2022 10 2 59854 0.2574 0.3141 -0.01885 2022 10 3 59855 0.2564 0.3124 -0.01845 2022 10 4 59856 0.2555 0.3106 -0.01811 2022 10 5 59857 0.2545 0.3090 -0.01792 2022 10 6 59858 0.2534 0.3073 -0.01799 2022 10 7 59859 0.2524 0.3056 -0.01827 2022 10 8 59860 0.2513 0.3040 -0.01874 2022 10 9 59861 0.2502 0.3024 -0.01933 2022 10 10 59862 0.2490 0.3008 -0.01995 2022 10 11 59863 0.2479 0.2992 -0.02045 2022 10 12 59864 0.2467 0.2976 -0.02072 2022 10 13 59865 0.2454 0.2961 -0.02072 2022 10 14 59866 0.2442 0.2945 -0.02053 2022 10 15 59867 0.2429 0.2930 -0.02010 2022 10 16 59868 0.2416 0.2915 -0.01969 2022 10 17 59869 0.2402 0.2901 -0.01922 2022 10 18 59870 0.2389 0.2886 -0.01878 2022 10 19 59871 0.2375 0.2872 -0.01842 2022 10 20 59872 0.2360 0.2858 -0.01814 2022 10 21 59873 0.2346 0.2844 -0.01804 2022 10 22 59874 0.2331 0.2831 -0.01819 2022 10 23 59875 0.2316 0.2817 -0.01853 2022 10 24 59876 0.2301 0.2804 -0.01908 2022 10 25 59877 0.2286 0.2791 -0.01964 2022 10 26 59878 0.2270 0.2779 -0.02013 2022 10 27 59879 0.2254 0.2766 -0.02045 2022 10 28 59880 0.2238 0.2754 -0.02052 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).