********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 30 September 2021 Vol. XXXIV No. 039 ______________________________________________________________________ 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 9 24 59481 0.22905 .00009 0.29078 .00009 -0.109068 0.000019 21 9 25 59482 0.22809 .00009 0.28971 .00009 -0.108849 0.000019 21 9 26 59483 0.22670 .00009 0.28850 .00009 -0.108504 0.000019 21 9 27 59484 0.22500 .00009 0.28691 .00009 -0.108032 0.000017 21 9 28 59485 0.22327 .00009 0.28511 .00009 -0.107393 0.000017 21 9 29 59486 0.22178 .00009 0.28324 .00009 -0.106700 0.000018 21 9 30 59487 0.22064 .00009 0.28135 .00009 -0.106049 0.000019 _______________________________________________________________________ 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 + 0.1094 cos A - 0.0501 sin A - 0.0307 cos C - 0.0388 sin C y = 0.3568 - 0.0364 cos A - 0.1041 sin A - 0.0388 cos C + 0.0307 sin C UT1-UTC = -0.1386 + 0.00023 (MJD - 59495) - (UT2-UT1) where A = 2*pi*(MJD-59487)/365.25 and C = 2*pi*(MJD-59487)/435. TAI-UTC(MJD 59488) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59487)**0.80 S t = 0.00025 (MJD-59487)**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 1 59488 0.2196 0.2796 -0.10541 2021 10 2 59489 0.2184 0.2781 -0.10488 2021 10 3 59490 0.2173 0.2767 -0.10453 2021 10 4 59491 0.2160 0.2754 -0.10443 2021 10 5 59492 0.2148 0.2741 -0.10459 2021 10 6 59493 0.2134 0.2728 -0.10500 2021 10 7 59494 0.2121 0.2716 -0.10551 2021 10 8 59495 0.2107 0.2705 -0.10598 2021 10 9 59496 0.2093 0.2694 -0.10628 2021 10 10 59497 0.2078 0.2683 -0.10631 2021 10 11 59498 0.2063 0.2672 -0.10609 2021 10 12 59499 0.2047 0.2662 -0.10570 2021 10 13 59500 0.2031 0.2651 -0.10527 2021 10 14 59501 0.2015 0.2640 -0.10490 2021 10 15 59502 0.2000 0.2629 -0.10466 2021 10 16 59503 0.1985 0.2619 -0.10459 2021 10 17 59504 0.1969 0.2610 -0.10467 2021 10 18 59505 0.1954 0.2601 -0.10487 2021 10 19 59506 0.1938 0.2592 -0.10515 2021 10 20 59507 0.1922 0.2584 -0.10542 2021 10 21 59508 0.1905 0.2576 -0.10562 2021 10 22 59509 0.1888 0.2568 -0.10570 2021 10 23 59510 0.1871 0.2561 -0.10563 2021 10 24 59511 0.1854 0.2553 -0.10539 2021 10 25 59512 0.1836 0.2546 -0.10501 2021 10 26 59513 0.1819 0.2538 -0.10454 2021 10 27 59514 0.1801 0.2531 -0.10404 2021 10 28 59515 0.1783 0.2524 -0.10358 2021 10 29 59516 0.1765 0.2518 -0.10321 2021 10 30 59517 0.1747 0.2511 -0.10301 2021 10 31 59518 0.1729 0.2505 -0.10303 2021 11 1 59519 0.1710 0.2500 -0.10332 2021 11 2 59520 0.1692 0.2494 -0.10385 2021 11 3 59521 0.1673 0.2489 -0.10454 2021 11 4 59522 0.1655 0.2484 -0.10528 2021 11 5 59523 0.1636 0.2479 -0.10591 2021 11 6 59524 0.1617 0.2475 -0.10631 2021 11 7 59525 0.1597 0.2471 -0.10644 2021 11 8 59526 0.1578 0.2467 -0.10634 2021 11 9 59527 0.1559 0.2463 -0.10615 2021 11 10 59528 0.1539 0.2460 -0.10596 2021 11 11 59529 0.1520 0.2457 -0.10590 2021 11 12 59530 0.1500 0.2454 -0.10601 2021 11 13 59531 0.1481 0.2451 -0.10629 2021 11 14 59532 0.1461 0.2449 -0.10672 2021 11 15 59533 0.1441 0.2447 -0.10723 2021 11 16 59534 0.1421 0.2446 -0.10776 2021 11 17 59535 0.1402 0.2444 -0.10824 2021 11 18 59536 0.1382 0.2443 -0.10862 2021 11 19 59537 0.1362 0.2443 -0.10884 2021 11 20 59538 0.1342 0.2442 -0.10889 2021 11 21 59539 0.1322 0.2442 -0.10877 2021 11 22 59540 0.1302 0.2442 -0.10852 2021 11 23 59541 0.1282 0.2443 -0.10819 2021 11 24 59542 0.1262 0.2443 -0.10784 2021 11 25 59543 0.1242 0.2444 -0.10756 2021 11 26 59544 0.1222 0.2446 -0.10739 2021 11 27 59545 0.1202 0.2447 -0.10741 2021 11 28 59546 0.1182 0.2449 -0.10765 2021 11 29 59547 0.1162 0.2451 -0.10811 2021 11 30 59548 0.1142 0.2454 -0.10875 2021 12 1 59549 0.1122 0.2457 -0.10949 2021 12 2 59550 0.1102 0.2460 -0.11019 2021 12 3 59551 0.1082 0.2463 -0.11072 2021 12 4 59552 0.1062 0.2467 -0.11099 2021 12 5 59553 0.1042 0.2471 -0.11101 2021 12 6 59554 0.1023 0.2475 -0.11084 2021 12 7 59555 0.1003 0.2480 -0.11062 2021 12 8 59556 0.0983 0.2485 -0.11047 2021 12 9 59557 0.0964 0.2490 -0.11047 2021 12 10 59558 0.0945 0.2496 -0.11065 2021 12 11 59559 0.0925 0.2501 -0.11096 2021 12 12 59560 0.0906 0.2507 -0.11135 2021 12 13 59561 0.0887 0.2514 -0.11175 2021 12 14 59562 0.0868 0.2520 -0.11208 2021 12 15 59563 0.0849 0.2527 -0.11231 2021 12 16 59564 0.0830 0.2534 -0.11238 2021 12 17 59565 0.0811 0.2542 -0.11229 2021 12 18 59566 0.0793 0.2550 -0.11204 2021 12 19 59567 0.0774 0.2558 -0.11164 2021 12 20 59568 0.0756 0.2566 -0.11117 2021 12 21 59569 0.0738 0.2575 -0.11067 2021 12 22 59570 0.0720 0.2583 -0.11021 2021 12 23 59571 0.0702 0.2592 -0.10986 2021 12 24 59572 0.0684 0.2602 -0.10968 2021 12 25 59573 0.0666 0.2612 -0.10970 2021 12 26 59574 0.0649 0.2621 -0.10991 2021 12 27 59575 0.0632 0.2632 -0.11031 2021 12 28 59576 0.0614 0.2642 -0.11082 2021 12 29 59577 0.0598 0.2653 -0.11135 2021 12 30 59578 0.0581 0.2664 -0.11176 2021 12 31 59579 0.0564 0.2675 -0.11197 2022 1 1 59580 0.0548 0.2686 -0.11193 2022 1 2 59581 0.0532 0.2698 -0.11169 2022 1 3 59582 0.0516 0.2710 -0.11136 2022 1 4 59583 0.0500 0.2722 -0.11106 2022 1 5 59584 0.0484 0.2735 -0.11090 2022 1 6 59585 0.0469 0.2747 -0.11094 2022 1 7 59586 0.0454 0.2760 -0.11114 2022 1 8 59587 0.0439 0.2773 -0.11145 2022 1 9 59588 0.0424 0.2787 -0.11178 2022 1 10 59589 0.0410 0.2800 -0.11205 2022 1 11 59590 0.0396 0.2814 -0.11220 2022 1 12 59591 0.0382 0.2828 -0.11219 2022 1 13 59592 0.0368 0.2842 -0.11200 2022 1 14 59593 0.0355 0.2857 -0.11164 2022 1 15 59594 0.0341 0.2871 -0.11113 2022 1 16 59595 0.0328 0.2886 -0.11052 2022 1 17 59596 0.0316 0.2901 -0.10985 2022 1 18 59597 0.0303 0.2916 -0.10922 2022 1 19 59598 0.0291 0.2932 -0.10871 2022 1 20 59599 0.0279 0.2947 -0.10835 2022 1 21 59600 0.0268 0.2963 -0.10821 2022 1 22 59601 0.0256 0.2979 -0.10827 2022 1 23 59602 0.0245 0.2995 -0.10852 2022 1 24 59603 0.0234 0.3011 -0.10889 2022 1 25 59604 0.0224 0.3028 -0.10929 2022 1 26 59605 0.0214 0.3045 -0.10961 2022 1 27 59606 0.0204 0.3061 -0.10978 2022 1 28 59607 0.0194 0.3078 -0.10973 2022 1 29 59608 0.0185 0.3095 -0.10948 2022 1 30 59609 0.0176 0.3113 -0.10912 2022 1 31 59610 0.0167 0.3130 -0.10875 2022 2 1 59611 0.0159 0.3147 -0.10852 2022 2 2 59612 0.0151 0.3165 -0.10850 2022 2 3 59613 0.0143 0.3183 -0.10870 2022 2 4 59614 0.0136 0.3201 -0.10906 2022 2 5 59615 0.0128 0.3219 -0.10950 2022 2 6 59616 0.0122 0.3237 -0.10993 2022 2 7 59617 0.0115 0.3255 -0.11025 2022 2 8 59618 0.0109 0.3273 -0.11042 2022 2 9 59619 0.0103 0.3292 -0.11042 2022 2 10 59620 0.0098 0.3310 -0.11024 2022 2 11 59621 0.0092 0.3329 -0.10991 2022 2 12 59622 0.0088 0.3347 -0.10948 2022 2 13 59623 0.0083 0.3366 -0.10900 2022 2 14 59624 0.0079 0.3385 -0.10854 2022 2 15 59625 0.0075 0.3404 -0.10819 2022 2 16 59626 0.0071 0.3423 -0.10800 2022 2 17 59627 0.0068 0.3442 -0.10803 2022 2 18 59628 0.0065 0.3461 -0.10829 2022 2 19 59629 0.0063 0.3480 -0.10875 2022 2 20 59630 0.0061 0.3499 -0.10935 2022 2 21 59631 0.0059 0.3518 -0.11000 2022 2 22 59632 0.0058 0.3537 -0.11057 2022 2 23 59633 0.0056 0.3556 -0.11100 2022 2 24 59634 0.0056 0.3576 -0.11121 2022 2 25 59635 0.0055 0.3595 -0.11123 2022 2 26 59636 0.0055 0.3614 -0.11111 2022 2 27 59637 0.0055 0.3634 -0.11096 2022 2 28 59638 0.0056 0.3653 -0.11090 2022 3 1 59639 0.0057 0.3672 -0.11103 2022 3 2 59640 0.0058 0.3691 -0.11140 2022 3 3 59641 0.0060 0.3711 -0.11198 2022 3 4 59642 0.0062 0.3730 -0.11270 2022 3 5 59643 0.0064 0.3749 -0.11345 2022 3 6 59644 0.0067 0.3768 -0.11413 2022 3 7 59645 0.0070 0.3787 -0.11468 2022 3 8 59646 0.0073 0.3807 -0.11505 2022 3 9 59647 0.0077 0.3826 -0.11522 2022 3 10 59648 0.0081 0.3845 -0.11523 2022 3 11 59649 0.0085 0.3864 -0.11510 2022 3 12 59650 0.0090 0.3882 -0.11491 2022 3 13 59651 0.0095 0.3901 -0.11471 2022 3 14 59652 0.0101 0.3920 -0.11458 2022 3 15 59653 0.0106 0.3939 -0.11460 2022 3 16 59654 0.0112 0.3957 -0.11483 2022 3 17 59655 0.0119 0.3976 -0.11529 2022 3 18 59656 0.0126 0.3994 -0.11599 2022 3 19 59657 0.0133 0.4013 -0.11686 2022 3 20 59658 0.0140 0.4031 -0.11780 2022 3 21 59659 0.0148 0.4049 -0.11868 2022 3 22 59660 0.0156 0.4067 -0.11941 2022 3 23 59661 0.0164 0.4085 -0.11992 2022 3 24 59662 0.0173 0.4103 -0.12019 2022 3 25 59663 0.0182 0.4120 -0.12029 2022 3 26 59664 0.0191 0.4138 -0.12033 2022 3 27 59665 0.0201 0.4155 -0.12042 2022 3 28 59666 0.0211 0.4172 -0.12066 2022 3 29 59667 0.0221 0.4189 -0.12113 2022 3 30 59668 0.0232 0.4206 -0.12184 2022 3 31 59669 0.0243 0.4223 -0.12272 2022 4 1 59670 0.0254 0.4240 -0.12370 2022 4 2 59671 0.0265 0.4256 -0.12468 2022 4 3 59672 0.0277 0.4273 -0.12558 2022 4 4 59673 0.0289 0.4289 -0.12633 2022 4 5 59674 0.0301 0.4305 -0.12692 2022 4 6 59675 0.0314 0.4320 -0.12735 2022 4 7 59676 0.0327 0.4336 -0.12765 2022 4 8 59677 0.0340 0.4351 -0.12785 2022 4 9 59678 0.0354 0.4367 -0.12801 2022 4 10 59679 0.0368 0.4382 -0.12818 2022 4 11 59680 0.0382 0.4396 -0.12841 2022 4 12 59681 0.0396 0.4411 -0.12876 2022 4 13 59682 0.0410 0.4425 -0.12927 2022 4 14 59683 0.0425 0.4440 -0.12996 2022 4 15 59684 0.0440 0.4454 -0.13081 2022 4 16 59685 0.0456 0.4467 -0.13174 2022 4 17 59686 0.0471 0.4481 -0.13263 2022 4 18 59687 0.0487 0.4494 -0.13333 2022 4 19 59688 0.0503 0.4507 -0.13376 2022 4 20 59689 0.0519 0.4520 -0.13387 2022 4 21 59690 0.0536 0.4533 -0.13371 2022 4 22 59691 0.0552 0.4545 -0.13338 2022 4 23 59692 0.0569 0.4557 -0.13301 2022 4 24 59693 0.0586 0.4569 -0.13271 2022 4 25 59694 0.0604 0.4581 -0.13257 2022 4 26 59695 0.0621 0.4592 -0.13260 2022 4 27 59696 0.0639 0.4603 -0.13278 2022 4 28 59697 0.0657 0.4614 -0.13304 2022 4 29 59698 0.0675 0.4624 -0.13329 2022 4 30 59699 0.0694 0.4635 -0.13342 2022 5 1 59700 0.0712 0.4645 -0.13339 2022 5 2 59701 0.0731 0.4654 -0.13315 2022 5 3 59702 0.0750 0.4664 -0.13272 2022 5 4 59703 0.0769 0.4673 -0.13213 2022 5 5 59704 0.0788 0.4682 -0.13142 2022 5 6 59705 0.0807 0.4691 -0.13065 2022 5 7 59706 0.0827 0.4699 -0.12987 2022 5 8 59707 0.0846 0.4707 -0.12916 2022 5 9 59708 0.0866 0.4715 -0.12860 2022 5 10 59709 0.0886 0.4722 -0.12824 2022 5 11 59710 0.0906 0.4729 -0.12811 2022 5 12 59711 0.0926 0.4736 -0.12819 2022 5 13 59712 0.0947 0.4743 -0.12842 2022 5 14 59713 0.0967 0.4749 -0.12874 2022 5 15 59714 0.0988 0.4755 -0.12900 2022 5 16 59715 0.1008 0.4761 -0.12894 2022 5 17 59716 0.1029 0.4766 -0.12859 2022 5 18 59717 0.1050 0.4771 -0.12796 2022 5 19 59718 0.1071 0.4776 -0.12711 2022 5 20 59719 0.1092 0.4780 -0.12622 2022 5 21 59720 0.1113 0.4784 -0.12540 2022 5 22 59721 0.1134 0.4788 -0.12471 2022 5 23 59722 0.1155 0.4792 -0.12418 2022 5 24 59723 0.1176 0.4795 -0.12386 2022 5 25 59724 0.1198 0.4798 -0.12365 2022 5 26 59725 0.1219 0.4800 -0.12352 2022 5 27 59726 0.1240 0.4803 -0.12341 2022 5 28 59727 0.1262 0.4805 -0.12318 2022 5 29 59728 0.1283 0.4806 -0.12286 2022 5 30 59729 0.1304 0.4807 -0.12240 2022 5 31 59730 0.1326 0.4808 -0.12177 2022 6 1 59731 0.1347 0.4809 -0.12104 2022 6 2 59732 0.1369 0.4809 -0.12021 2022 6 3 59733 0.1390 0.4809 -0.11933 2022 6 4 59734 0.1412 0.4809 -0.11849 2022 6 5 59735 0.1433 0.4809 -0.11776 2022 6 6 59736 0.1455 0.4808 -0.11720 2022 6 7 59737 0.1476 0.4806 -0.11678 2022 6 8 59738 0.1498 0.4805 -0.11652 2022 6 9 59739 0.1519 0.4803 -0.11641 2022 6 10 59740 0.1540 0.4801 -0.11639 2022 6 11 59741 0.1561 0.4798 -0.11635 2022 6 12 59742 0.1583 0.4795 -0.11620 2022 6 13 59743 0.1604 0.4792 -0.11579 2022 6 14 59744 0.1625 0.4789 -0.11508 2022 6 15 59745 0.1646 0.4785 -0.11408 2022 6 16 59746 0.1667 0.4781 -0.11290 2022 6 17 59747 0.1688 0.4776 -0.11178 2022 6 18 59748 0.1708 0.4772 -0.11084 2022 6 19 59749 0.1729 0.4767 -0.10998 2022 6 20 59750 0.1750 0.4761 -0.10923 2022 6 21 59751 0.1770 0.4756 -0.10862 2022 6 22 59752 0.1790 0.4750 -0.10804 2022 6 23 59753 0.1811 0.4744 -0.10737 2022 6 24 59754 0.1831 0.4737 -0.10658 2022 6 25 59755 0.1851 0.4730 -0.10552 2022 6 26 59756 0.1871 0.4723 -0.10425 2022 6 27 59757 0.1890 0.4716 -0.10277 2022 6 28 59758 0.1910 0.4708 -0.10112 2022 6 29 59759 0.1929 0.4700 -0.09939 2022 6 30 59760 0.1948 0.4692 -0.09762 2022 7 1 59761 0.1968 0.4683 -0.09587 2022 7 2 59762 0.1986 0.4674 -0.09437 2022 7 3 59763 0.2005 0.4665 -0.09301 2022 7 4 59764 0.2024 0.4656 -0.09186 2022 7 5 59765 0.2042 0.4646 -0.09088 2022 7 6 59766 0.2060 0.4636 -0.09001 2022 7 7 59767 0.2078 0.4626 -0.08921 2022 7 8 59768 0.2096 0.4615 -0.08847 2022 7 9 59769 0.2114 0.4604 -0.08770 2022 7 10 59770 0.2131 0.4593 -0.08674 2022 7 11 59771 0.2149 0.4582 -0.08552 2022 7 12 59772 0.2166 0.4571 -0.08409 2022 7 13 59773 0.2182 0.4559 -0.08254 2022 7 14 59774 0.2199 0.4547 -0.08102 2022 7 15 59775 0.2215 0.4535 -0.07967 2022 7 16 59776 0.2231 0.4522 -0.07855 2022 7 17 59777 0.2247 0.4509 -0.07771 2022 7 18 59778 0.2263 0.4496 -0.07707 2022 7 19 59779 0.2278 0.4483 -0.07646 2022 7 20 59780 0.2293 0.4470 -0.07577 2022 7 21 59781 0.2308 0.4456 -0.07495 2022 7 22 59782 0.2323 0.4442 -0.07397 2022 7 23 59783 0.2337 0.4428 -0.07281 2022 7 24 59784 0.2351 0.4413 -0.07148 2022 7 25 59785 0.2365 0.4399 -0.07006 2022 7 26 59786 0.2379 0.4384 -0.06849 2022 7 27 59787 0.2392 0.4369 -0.06684 2022 7 28 59788 0.2405 0.4354 -0.06519 2022 7 29 59789 0.2417 0.4339 -0.06361 2022 7 30 59790 0.2430 0.4323 -0.06220 2022 7 31 59791 0.2442 0.4308 -0.06091 2022 8 1 59792 0.2454 0.4292 -0.05987 2022 8 2 59793 0.2465 0.4276 -0.05903 2022 8 3 59794 0.2477 0.4259 -0.05833 2022 8 4 59795 0.2487 0.4243 -0.05765 2022 8 5 59796 0.2498 0.4226 -0.05696 2022 8 6 59797 0.2508 0.4210 -0.05623 2022 8 7 59798 0.2518 0.4193 -0.05531 2022 8 8 59799 0.2528 0.4176 -0.05425 2022 8 9 59800 0.2537 0.4159 -0.05307 2022 8 10 59801 0.2546 0.4141 -0.05188 2022 8 11 59802 0.2555 0.4124 -0.05082 2022 8 12 59803 0.2564 0.4107 -0.04992 2022 8 13 59804 0.2572 0.4089 -0.04927 2022 8 14 59805 0.2579 0.4071 -0.04884 2022 8 15 59806 0.2587 0.4053 -0.04856 2022 8 16 59807 0.2594 0.4035 -0.04829 2022 8 17 59808 0.2601 0.4017 -0.04786 2022 8 18 59809 0.2607 0.3999 -0.04722 2022 8 19 59810 0.2613 0.3981 -0.04639 2022 8 20 59811 0.2619 0.3962 -0.04531 2022 8 21 59812 0.2624 0.3944 -0.04418 2022 8 22 59813 0.2629 0.3925 -0.04292 2022 8 23 59814 0.2634 0.3907 -0.04160 2022 8 24 59815 0.2638 0.3888 -0.04027 2022 8 25 59816 0.2642 0.3869 -0.03895 2022 8 26 59817 0.2646 0.3850 -0.03777 2022 8 27 59818 0.2649 0.3832 -0.03682 2022 8 28 59819 0.2652 0.3813 -0.03610 2022 8 29 59820 0.2655 0.3794 -0.03565 2022 8 30 59821 0.2657 0.3775 -0.03533 2022 8 31 59822 0.2659 0.3756 -0.03508 2022 9 1 59823 0.2660 0.3737 -0.03483 2022 9 2 59824 0.2662 0.3718 -0.03445 2022 9 3 59825 0.2662 0.3699 -0.03392 2022 9 4 59826 0.2663 0.3680 -0.03320 2022 9 5 59827 0.2663 0.3661 -0.03236 2022 9 6 59828 0.2663 0.3642 -0.03151 2022 9 7 59829 0.2662 0.3622 -0.03069 2022 9 8 59830 0.2661 0.3603 -0.02998 2022 9 9 59831 0.2660 0.3584 -0.02955 2022 9 10 59832 0.2658 0.3565 -0.02945 2022 9 11 59833 0.2656 0.3546 -0.02961 2022 9 12 59834 0.2654 0.3527 -0.02986 2022 9 13 59835 0.2652 0.3509 -0.03004 2022 9 14 59836 0.2649 0.3490 -0.03005 2022 9 15 59837 0.2645 0.3471 -0.02982 2022 9 16 59838 0.2641 0.3452 -0.02932 2022 9 17 59839 0.2637 0.3434 -0.02862 2022 9 18 59840 0.2633 0.3415 -0.02785 2022 9 19 59841 0.2628 0.3396 -0.02706 2022 9 20 59842 0.2623 0.3378 -0.02629 2022 9 21 59843 0.2618 0.3359 -0.02564 2022 9 22 59844 0.2612 0.3341 -0.02521 2022 9 23 59845 0.2606 0.3323 -0.02501 2022 9 24 59846 0.2600 0.3305 -0.02503 2022 9 25 59847 0.2593 0.3287 -0.02517 2022 9 26 59848 0.2586 0.3269 -0.02541 2022 9 27 59849 0.2578 0.3251 -0.02570 2022 9 28 59850 0.2571 0.3233 -0.02596 2022 9 29 59851 0.2562 0.3216 -0.02612 2022 9 30 59852 0.2554 0.3198 -0.02601 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) 59466 -118.23 0.24 -9.24 0.07 59467 -118.40 0.24 -9.44 0.07 59468 -118.58 0.24 -9.55 0.07 59469 -118.73 0.64 -9.49 0.12 59470 -118.78 0.64 -9.34 0.12 59471 -118.71 0.64 -9.19 0.12 59472 -118.50 0.66 -9.12 0.13 59473 -118.19 0.66 -9.12 0.13 59474 -117.82 0.66 -9.14 0.13 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59466 0.103 0.094 -0.081 0.069 59467 0.117 0.094 -0.088 0.069 59468 0.142 0.094 -0.096 0.069 59469 0.173 0.255 -0.106 0.119 59470 0.209 0.255 -0.117 0.119 59471 0.248 0.254 -0.130 0.118 59472 0.290 0.262 -0.144 0.130 59473 0.332 0.262 -0.160 0.130 59474 0.374 0.262 -0.176 0.130 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).