********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 23 September 2021 Vol. XXXIV No. 038 ______________________________________________________________________ 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 17 59474 0.23413 .00009 0.30248 .00009 -0.110760 0.000019 21 9 18 59475 0.23313 .00009 0.30071 .00009 -0.110152 0.000018 21 9 19 59476 0.23196 .00009 0.29894 .00009 -0.109790 0.000018 21 9 20 59477 0.23097 .00009 0.29708 .00009 -0.109522 0.000019 21 9 21 59478 0.23045 .00009 0.29521 .00009 -0.109337 0.000020 21 9 22 59479 0.23017 .00009 0.29348 .00009 -0.109250 0.000024 21 9 23 59480 0.22979 .00009 0.29197 .00009 -0.109226 0.000027 _______________________________________________________________________ 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 = 0.1362 + 0.1140 cos A - 0.0384 sin A - 0.0269 cos C - 0.0400 sin C y = 0.3571 - 0.0252 cos A - 0.1071 sin A - 0.0400 cos C + 0.0269 sin C UT1-UTC = -0.1423 + 0.00023 (MJD - 59488) - (UT2-UT1) where A = 2*pi*(MJD-59480)/365.25 and C = 2*pi*(MJD-59480)/435. TAI-UTC(MJD 59481) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59480)**0.80 S t = 0.00025 (MJD-59480)**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 9 24 59481 0.2292 0.2906 -0.10909 2021 9 25 59482 0.2286 0.2894 -0.10882 2021 9 26 59483 0.2278 0.2881 -0.10844 2021 9 27 59484 0.2268 0.2868 -0.10793 2021 9 28 59485 0.2257 0.2855 -0.10731 2021 9 29 59486 0.2245 0.2842 -0.10662 2021 9 30 59487 0.2233 0.2829 -0.10591 2021 10 1 59488 0.2221 0.2815 -0.10525 2021 10 2 59489 0.2208 0.2801 -0.10475 2021 10 3 59490 0.2195 0.2788 -0.10447 2021 10 4 59491 0.2182 0.2775 -0.10444 2021 10 5 59492 0.2170 0.2761 -0.10467 2021 10 6 59493 0.2157 0.2749 -0.10510 2021 10 7 59494 0.2144 0.2737 -0.10560 2021 10 8 59495 0.2131 0.2725 -0.10606 2021 10 9 59496 0.2118 0.2714 -0.10634 2021 10 10 59497 0.2104 0.2703 -0.10637 2021 10 11 59498 0.2089 0.2693 -0.10616 2021 10 12 59499 0.2073 0.2683 -0.10578 2021 10 13 59500 0.2058 0.2672 -0.10534 2021 10 14 59501 0.2041 0.2662 -0.10494 2021 10 15 59502 0.2025 0.2652 -0.10469 2021 10 16 59503 0.2009 0.2641 -0.10464 2021 10 17 59504 0.1993 0.2631 -0.10477 2021 10 18 59505 0.1977 0.2622 -0.10504 2021 10 19 59506 0.1960 0.2612 -0.10538 2021 10 20 59507 0.1944 0.2603 -0.10572 2021 10 21 59508 0.1927 0.2594 -0.10598 2021 10 22 59509 0.1910 0.2586 -0.10612 2021 10 23 59510 0.1893 0.2578 -0.10610 2021 10 24 59511 0.1876 0.2570 -0.10592 2021 10 25 59512 0.1858 0.2562 -0.10560 2021 10 26 59513 0.1840 0.2554 -0.10518 2021 10 27 59514 0.1822 0.2547 -0.10473 2021 10 28 59515 0.1804 0.2540 -0.10432 2021 10 29 59516 0.1786 0.2533 -0.10403 2021 10 30 59517 0.1768 0.2526 -0.10394 2021 10 31 59518 0.1750 0.2520 -0.10410 2021 11 1 59519 0.1731 0.2513 -0.10455 2021 11 2 59520 0.1713 0.2508 -0.10526 2021 11 3 59521 0.1694 0.2502 -0.10614 2021 11 4 59522 0.1675 0.2497 -0.10707 2021 11 5 59523 0.1656 0.2492 -0.10791 2021 11 6 59524 0.1637 0.2487 -0.10852 2021 11 7 59525 0.1618 0.2482 -0.10887 2021 11 8 59526 0.1599 0.2478 -0.10898 2021 11 9 59527 0.1579 0.2474 -0.10897 2021 11 10 59528 0.1560 0.2471 -0.10895 2021 11 11 59529 0.1540 0.2467 -0.10902 2021 11 12 59530 0.1521 0.2464 -0.10925 2021 11 13 59531 0.1501 0.2461 -0.10963 2021 11 14 59532 0.1481 0.2459 -0.11013 2021 11 15 59533 0.1462 0.2457 -0.11070 2021 11 16 59534 0.1442 0.2455 -0.11125 2021 11 17 59535 0.1422 0.2453 -0.11174 2021 11 18 59536 0.1402 0.2452 -0.11209 2021 11 19 59537 0.1382 0.2451 -0.11228 2021 11 20 59538 0.1362 0.2450 -0.11229 2021 11 21 59539 0.1342 0.2450 -0.11213 2021 11 22 59540 0.1322 0.2449 -0.11185 2021 11 23 59541 0.1302 0.2450 -0.11149 2021 11 24 59542 0.1282 0.2450 -0.11113 2021 11 25 59543 0.1262 0.2451 -0.11083 2021 11 26 59544 0.1241 0.2452 -0.11067 2021 11 27 59545 0.1221 0.2453 -0.11071 2021 11 28 59546 0.1201 0.2455 -0.11097 2021 11 29 59547 0.1181 0.2457 -0.11147 2021 11 30 59548 0.1161 0.2459 -0.11216 2021 12 1 59549 0.1141 0.2462 -0.11295 2021 12 2 59550 0.1121 0.2464 -0.11370 2021 12 3 59551 0.1101 0.2468 -0.11428 2021 12 4 59552 0.1081 0.2471 -0.11461 2021 12 5 59553 0.1061 0.2475 -0.11467 2021 12 6 59554 0.1042 0.2479 -0.11456 2021 12 7 59555 0.1022 0.2483 -0.11440 2021 12 8 59556 0.1002 0.2488 -0.11431 2021 12 9 59557 0.0983 0.2493 -0.11437 2021 12 10 59558 0.0963 0.2498 -0.11460 2021 12 11 59559 0.0944 0.2503 -0.11497 2021 12 12 59560 0.0924 0.2509 -0.11541 2021 12 13 59561 0.0905 0.2515 -0.11584 2021 12 14 59562 0.0886 0.2522 -0.11621 2021 12 15 59563 0.0867 0.2528 -0.11645 2021 12 16 59564 0.0848 0.2535 -0.11654 2021 12 17 59565 0.0829 0.2542 -0.11644 2021 12 18 59566 0.0810 0.2550 -0.11617 2021 12 19 59567 0.0792 0.2558 -0.11576 2021 12 20 59568 0.0773 0.2566 -0.11526 2021 12 21 59569 0.0755 0.2574 -0.11472 2021 12 22 59570 0.0737 0.2583 -0.11423 2021 12 23 59571 0.0719 0.2591 -0.11385 2021 12 24 59572 0.0701 0.2601 -0.11364 2021 12 25 59573 0.0683 0.2610 -0.11363 2021 12 26 59574 0.0665 0.2620 -0.11383 2021 12 27 59575 0.0648 0.2630 -0.11421 2021 12 28 59576 0.0631 0.2640 -0.11470 2021 12 29 59577 0.0614 0.2650 -0.11520 2021 12 30 59578 0.0597 0.2661 -0.11560 2021 12 31 59579 0.0580 0.2672 -0.11578 2022 1 1 59580 0.0564 0.2683 -0.11571 2022 1 2 59581 0.0547 0.2695 -0.11543 2022 1 3 59582 0.0531 0.2706 -0.11505 2022 1 4 59583 0.0515 0.2718 -0.11469 2022 1 5 59584 0.0500 0.2730 -0.11447 2022 1 6 59585 0.0484 0.2743 -0.11444 2022 1 7 59586 0.0469 0.2756 -0.11458 2022 1 8 59587 0.0454 0.2768 -0.11482 2022 1 9 59588 0.0439 0.2782 -0.11507 2022 1 10 59589 0.0425 0.2795 -0.11527 2022 1 11 59590 0.0410 0.2808 -0.11536 2022 1 12 59591 0.0396 0.2822 -0.11529 2022 1 13 59592 0.0382 0.2836 -0.11506 2022 1 14 59593 0.0369 0.2850 -0.11466 2022 1 15 59594 0.0355 0.2865 -0.11412 2022 1 16 59595 0.0342 0.2880 -0.11348 2022 1 17 59596 0.0329 0.2894 -0.11280 2022 1 18 59597 0.0317 0.2909 -0.11217 2022 1 19 59598 0.0305 0.2925 -0.11164 2022 1 20 59599 0.0292 0.2940 -0.11128 2022 1 21 59600 0.0281 0.2956 -0.11113 2022 1 22 59601 0.0269 0.2971 -0.11119 2022 1 23 59602 0.0258 0.2987 -0.11144 2022 1 24 59603 0.0247 0.3003 -0.11180 2022 1 25 59604 0.0236 0.3020 -0.11220 2022 1 26 59605 0.0226 0.3036 -0.11252 2022 1 27 59606 0.0216 0.3053 -0.11268 2022 1 28 59607 0.0206 0.3069 -0.11263 2022 1 29 59608 0.0197 0.3086 -0.11237 2022 1 30 59609 0.0188 0.3103 -0.11200 2022 1 31 59610 0.0179 0.3120 -0.11163 2022 2 1 59611 0.0170 0.3138 -0.11140 2022 2 2 59612 0.0162 0.3155 -0.11137 2022 2 3 59613 0.0154 0.3173 -0.11156 2022 2 4 59614 0.0147 0.3190 -0.11192 2022 2 5 59615 0.0139 0.3208 -0.11236 2022 2 6 59616 0.0132 0.3226 -0.11278 2022 2 7 59617 0.0126 0.3244 -0.11310 2022 2 8 59618 0.0119 0.3262 -0.11327 2022 2 9 59619 0.0113 0.3281 -0.11327 2022 2 10 59620 0.0108 0.3299 -0.11310 2022 2 11 59621 0.0102 0.3317 -0.11278 2022 2 12 59622 0.0097 0.3336 -0.11235 2022 2 13 59623 0.0093 0.3355 -0.11188 2022 2 14 59624 0.0088 0.3373 -0.11144 2022 2 15 59625 0.0084 0.3392 -0.11110 2022 2 16 59626 0.0081 0.3411 -0.11092 2022 2 17 59627 0.0077 0.3430 -0.11097 2022 2 18 59628 0.0074 0.3449 -0.11125 2022 2 19 59629 0.0072 0.3467 -0.11173 2022 2 20 59630 0.0069 0.3486 -0.11235 2022 2 21 59631 0.0067 0.3506 -0.11301 2022 2 22 59632 0.0066 0.3525 -0.11360 2022 2 23 59633 0.0065 0.3544 -0.11404 2022 2 24 59634 0.0064 0.3563 -0.11427 2022 2 25 59635 0.0063 0.3582 -0.11429 2022 2 26 59636 0.0063 0.3601 -0.11418 2022 2 27 59637 0.0063 0.3620 -0.11403 2022 2 28 59638 0.0063 0.3640 -0.11398 2022 3 1 59639 0.0064 0.3659 -0.11411 2022 3 2 59640 0.0065 0.3678 -0.11448 2022 3 3 59641 0.0067 0.3697 -0.11506 2022 3 4 59642 0.0069 0.3716 -0.11577 2022 3 5 59643 0.0071 0.3735 -0.11652 2022 3 6 59644 0.0073 0.3754 -0.11719 2022 3 7 59645 0.0076 0.3773 -0.11772 2022 3 8 59646 0.0079 0.3792 -0.11807 2022 3 9 59647 0.0083 0.3811 -0.11823 2022 3 10 59648 0.0087 0.3830 -0.11821 2022 3 11 59649 0.0091 0.3849 -0.11807 2022 3 12 59650 0.0096 0.3868 -0.11785 2022 3 13 59651 0.0101 0.3887 -0.11763 2022 3 14 59652 0.0106 0.3906 -0.11749 2022 3 15 59653 0.0112 0.3924 -0.11749 2022 3 16 59654 0.0117 0.3943 -0.11771 2022 3 17 59655 0.0124 0.3961 -0.11816 2022 3 18 59656 0.0130 0.3980 -0.11885 2022 3 19 59657 0.0137 0.3998 -0.11972 2022 3 20 59658 0.0145 0.4016 -0.12066 2022 3 21 59659 0.0152 0.4034 -0.12157 2022 3 22 59660 0.0160 0.4052 -0.12232 2022 3 23 59661 0.0168 0.4070 -0.12287 2022 3 24 59662 0.0177 0.4088 -0.12320 2022 3 25 59663 0.0186 0.4105 -0.12338 2022 3 26 59664 0.0195 0.4123 -0.12352 2022 3 27 59665 0.0204 0.4140 -0.12372 2022 3 28 59666 0.0214 0.4157 -0.12411 2022 3 29 59667 0.0224 0.4174 -0.12474 2022 3 30 59668 0.0235 0.4191 -0.12562 2022 3 31 59669 0.0246 0.4208 -0.12667 2022 4 1 59670 0.0257 0.4225 -0.12780 2022 4 2 59671 0.0268 0.4241 -0.12887 2022 4 3 59672 0.0280 0.4257 -0.12979 2022 4 4 59673 0.0291 0.4273 -0.13048 2022 4 5 59674 0.0304 0.4289 -0.13090 2022 4 6 59675 0.0316 0.4305 -0.13108 2022 4 7 59676 0.0329 0.4321 -0.13104 2022 4 8 59677 0.0342 0.4336 -0.13085 2022 4 9 59678 0.0355 0.4351 -0.13057 2022 4 10 59679 0.0369 0.4366 -0.13029 2022 4 11 59680 0.0383 0.4381 -0.13006 2022 4 12 59681 0.0397 0.4396 -0.12997 2022 4 13 59682 0.0411 0.4410 -0.13005 2022 4 14 59683 0.0426 0.4424 -0.13033 2022 4 15 59684 0.0441 0.4438 -0.13078 2022 4 16 59685 0.0456 0.4452 -0.13135 2022 4 17 59686 0.0472 0.4466 -0.13190 2022 4 18 59687 0.0487 0.4479 -0.13231 2022 4 19 59688 0.0503 0.4492 -0.13249 2022 4 20 59689 0.0519 0.4505 -0.13240 2022 4 21 59690 0.0536 0.4518 -0.13210 2022 4 22 59691 0.0552 0.4530 -0.13170 2022 4 23 59692 0.0569 0.4542 -0.13131 2022 4 24 59693 0.0586 0.4554 -0.13103 2022 4 25 59694 0.0603 0.4566 -0.13094 2022 4 26 59695 0.0621 0.4577 -0.13106 2022 4 27 59696 0.0638 0.4588 -0.13134 2022 4 28 59697 0.0656 0.4599 -0.13171 2022 4 29 59698 0.0674 0.4610 -0.13209 2022 4 30 59699 0.0692 0.4620 -0.13238 2022 5 1 59700 0.0711 0.4630 -0.13249 2022 5 2 59701 0.0729 0.4640 -0.13235 2022 5 3 59702 0.0748 0.4649 -0.13195 2022 5 4 59703 0.0767 0.4658 -0.13134 2022 5 5 59704 0.0786 0.4667 -0.13056 2022 5 6 59705 0.0805 0.4676 -0.12971 2022 5 7 59706 0.0825 0.4684 -0.12884 2022 5 8 59707 0.0844 0.4693 -0.12802 2022 5 9 59708 0.0864 0.4700 -0.12732 2022 5 10 59709 0.0884 0.4708 -0.12685 2022 5 11 59710 0.0904 0.4715 -0.12664 2022 5 12 59711 0.0924 0.4722 -0.12672 2022 5 13 59712 0.0944 0.4729 -0.12705 2022 5 14 59713 0.0964 0.4735 -0.12749 2022 5 15 59714 0.0985 0.4741 -0.12794 2022 5 16 59715 0.1005 0.4747 -0.12827 2022 5 17 59716 0.1026 0.4752 -0.12836 2022 5 18 59717 0.1046 0.4757 -0.12825 2022 5 19 59718 0.1067 0.4762 -0.12795 2022 5 20 59719 0.1088 0.4767 -0.12758 2022 5 21 59720 0.1109 0.4771 -0.12727 2022 5 22 59721 0.1130 0.4775 -0.12713 2022 5 23 59722 0.1151 0.4779 -0.12718 2022 5 24 59723 0.1172 0.4782 -0.12733 2022 5 25 59724 0.1193 0.4785 -0.12753 2022 5 26 59725 0.1215 0.4787 -0.12770 2022 5 27 59726 0.1236 0.4790 -0.12778 2022 5 28 59727 0.1257 0.4792 -0.12770 2022 5 29 59728 0.1278 0.4793 -0.12744 2022 5 30 59729 0.1300 0.4795 -0.12694 2022 5 31 59730 0.1321 0.4796 -0.12621 2022 6 1 59731 0.1342 0.4797 -0.12525 2022 6 2 59732 0.1364 0.4797 -0.12410 2022 6 3 59733 0.1385 0.4797 -0.12293 2022 6 4 59734 0.1407 0.4797 -0.12183 2022 6 5 59735 0.1428 0.4797 -0.12074 2022 6 6 59736 0.1449 0.4796 -0.11973 2022 6 7 59737 0.1471 0.4795 -0.11895 2022 6 8 59738 0.1492 0.4793 -0.11837 2022 6 9 59739 0.1513 0.4791 -0.11798 2022 6 10 59740 0.1534 0.4789 -0.11769 2022 6 11 59741 0.1555 0.4787 -0.11733 2022 6 12 59742 0.1576 0.4784 -0.11682 2022 6 13 59743 0.1598 0.4781 -0.11606 2022 6 14 59744 0.1618 0.4778 -0.11502 2022 6 15 59745 0.1639 0.4774 -0.11380 2022 6 16 59746 0.1660 0.4770 -0.11248 2022 6 17 59747 0.1681 0.4766 -0.11119 2022 6 18 59748 0.1702 0.4761 -0.11020 2022 6 19 59749 0.1722 0.4756 -0.10940 2022 6 20 59750 0.1743 0.4751 -0.10880 2022 6 21 59751 0.1763 0.4746 -0.10828 2022 6 22 59752 0.1783 0.4740 -0.10771 2022 6 23 59753 0.1803 0.4734 -0.10701 2022 6 24 59754 0.1823 0.4727 -0.10620 2022 6 25 59755 0.1843 0.4720 -0.10523 2022 6 26 59756 0.1863 0.4713 -0.10404 2022 6 27 59757 0.1883 0.4706 -0.10263 2022 6 28 59758 0.1902 0.4699 -0.10107 2022 6 29 59759 0.1921 0.4691 -0.09940 2022 6 30 59760 0.1941 0.4682 -0.09772 2022 7 1 59761 0.1960 0.4674 -0.09608 2022 7 2 59762 0.1978 0.4665 -0.09457 2022 7 3 59763 0.1997 0.4656 -0.09324 2022 7 4 59764 0.2016 0.4647 -0.09215 2022 7 5 59765 0.2034 0.4637 -0.09123 2022 7 6 59766 0.2052 0.4628 -0.09045 2022 7 7 59767 0.2070 0.4617 -0.08978 2022 7 8 59768 0.2088 0.4607 -0.08918 2022 7 9 59769 0.2105 0.4596 -0.08853 2022 7 10 59770 0.2123 0.4586 -0.08772 2022 7 11 59771 0.2140 0.4574 -0.08675 2022 7 12 59772 0.2157 0.4563 -0.08552 2022 7 13 59773 0.2173 0.4551 -0.08412 2022 7 14 59774 0.2190 0.4539 -0.08270 2022 7 15 59775 0.2206 0.4527 -0.08139 2022 7 16 59776 0.2222 0.4515 -0.08032 2022 7 17 59777 0.2238 0.4502 -0.07941 2022 7 18 59778 0.2253 0.4489 -0.07869 2022 7 19 59779 0.2269 0.4476 -0.07806 2022 7 20 59780 0.2284 0.4463 -0.07737 2022 7 21 59781 0.2298 0.4449 -0.07653 2022 7 22 59782 0.2313 0.4435 -0.07553 2022 7 23 59783 0.2327 0.4421 -0.07440 2022 7 24 59784 0.2341 0.4407 -0.07310 2022 7 25 59785 0.2355 0.4393 -0.07169 2022 7 26 59786 0.2368 0.4378 -0.07020 2022 7 27 59787 0.2382 0.4363 -0.06868 2022 7 28 59788 0.2394 0.4348 -0.06720 2022 7 29 59789 0.2407 0.4333 -0.06577 2022 7 30 59790 0.2419 0.4318 -0.06446 2022 7 31 59791 0.2431 0.4302 -0.06334 2022 8 1 59792 0.2443 0.4286 -0.06244 2022 8 2 59793 0.2455 0.4270 -0.06172 2022 8 3 59794 0.2466 0.4254 -0.06108 2022 8 4 59795 0.2477 0.4238 -0.06046 2022 8 5 59796 0.2487 0.4222 -0.05982 2022 8 6 59797 0.2497 0.4205 -0.05899 2022 8 7 59798 0.2507 0.4188 -0.05809 2022 8 8 59799 0.2517 0.4171 -0.05697 2022 8 9 59800 0.2526 0.4154 -0.05570 2022 8 10 59801 0.2535 0.4137 -0.05436 2022 8 11 59802 0.2544 0.4120 -0.05306 2022 8 12 59803 0.2552 0.4103 -0.05196 2022 8 13 59804 0.2560 0.4085 -0.05116 2022 8 14 59805 0.2568 0.4067 -0.05061 2022 8 15 59806 0.2575 0.4050 -0.05025 2022 8 16 59807 0.2582 0.4032 -0.04988 2022 8 17 59808 0.2589 0.4014 -0.04941 2022 8 18 59809 0.2595 0.3996 -0.04877 2022 8 19 59810 0.2601 0.3977 -0.04792 2022 8 20 59811 0.2607 0.3959 -0.04691 2022 8 21 59812 0.2612 0.3941 -0.04573 2022 8 22 59813 0.2617 0.3922 -0.04446 2022 8 23 59814 0.2622 0.3904 -0.04320 2022 8 24 59815 0.2626 0.3885 -0.04191 2022 8 25 59816 0.2630 0.3867 -0.04064 2022 8 26 59817 0.2634 0.3848 -0.03954 2022 8 27 59818 0.2637 0.3829 -0.03868 2022 8 28 59819 0.2640 0.3810 -0.03811 2022 8 29 59820 0.2642 0.3792 -0.03776 2022 8 30 59821 0.2644 0.3773 -0.03753 2022 8 31 59822 0.2646 0.3754 -0.03736 2022 9 1 59823 0.2648 0.3735 -0.03712 2022 9 2 59824 0.2649 0.3716 -0.03672 2022 9 3 59825 0.2650 0.3697 -0.03613 2022 9 4 59826 0.2650 0.3678 -0.03541 2022 9 5 59827 0.2650 0.3659 -0.03459 2022 9 6 59828 0.2650 0.3640 -0.03374 2022 9 7 59829 0.2649 0.3621 -0.03300 2022 9 8 59830 0.2648 0.3602 -0.03253 2022 9 9 59831 0.2647 0.3583 -0.03237 2022 9 10 59832 0.2645 0.3564 -0.03248 2022 9 11 59833 0.2643 0.3545 -0.03269 2022 9 12 59834 0.2641 0.3527 -0.03291 2022 9 13 59835 0.2638 0.3508 -0.03303 2022 9 14 59836 0.2635 0.3489 -0.03297 2022 9 15 59837 0.2632 0.3470 -0.03271 2022 9 16 59838 0.2628 0.3452 -0.03215 2022 9 17 59839 0.2624 0.3433 -0.03136 2022 9 18 59840 0.2620 0.3414 -0.03036 2022 9 19 59841 0.2615 0.3396 -0.02931 2022 9 20 59842 0.2610 0.3378 -0.02823 2022 9 21 59843 0.2604 0.3359 -0.02720 2022 9 22 59844 0.2598 0.3341 -0.02636 2022 9 23 59845 0.2592 0.3323 -0.02569 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) 59458 -118.61 0.69 -9.13 0.10 59459 -118.53 0.69 -9.36 0.10 59460 -118.33 0.69 -9.62 0.10 59461 -118.07 0.71 -9.73 0.10 59462 -117.88 0.71 -9.62 0.10 59463 -117.85 0.52 -9.38 0.08 59464 -117.96 0.14 -9.16 0.06 59465 -118.15 0.14 -9.10 0.06 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59458 0.278 0.275 0.000 0.103 59459 0.286 0.275 -0.027 0.103 59460 0.286 0.275 -0.055 0.103 59461 0.271 0.282 -0.075 0.099 59462 0.239 0.282 -0.083 0.099 59463 0.195 0.208 -0.083 0.079 59464 0.142 0.056 -0.078 0.056 59465 0.085 0.056 -0.069 0.056 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).