********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 15 July 2021 Vol. XXXIV No. 028 ______________________________________________________________________ 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 = -0.2 seconds beginning 02 May 2019 at 0000 UTC = -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 * * * * 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 7 9 59404 0.22188 .00009 0.41074 .00009 -0.159018 0.000016 21 7 10 59405 0.22368 .00009 0.40915 .00009 -0.157569 0.000016 21 7 11 59406 0.22563 .00009 0.40769 .00009 -0.156227 0.000017 21 7 12 59407 0.22753 .00009 0.40657 .00009 -0.154981 0.000024 21 7 13 59408 0.22930 .00009 0.40577 .00009 -0.153867 0.000028 21 7 14 59409 0.23087 .00009 0.40507 .00009 -0.153021 0.000033 21 7 15 59410 0.23234 .00009 0.40424 .00009 -0.152477 0.000031 _______________________________________________________________________ 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 = 0.1414 + 0.0887 cos A + 0.0830 sin A + 0.0032 cos C - 0.0419 sin C y = 0.3624 + 0.0830 cos A - 0.0760 sin A - 0.0419 cos C - 0.0032 sin C UT1-UTC = -0.1574 + 0.00025 (MJD - 59418) - (UT2-UT1) where A = 2*pi*(MJD-59410)/365.25 and C = 2*pi*(MJD-59410)/435. TAI-UTC(MJD 59411) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59410)**0.80 S t = 0.00025 (MJD-59410)**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 7 16 59411 0.2336 0.4033 -0.15209 2021 7 17 59412 0.2348 0.4021 -0.15181 2021 7 18 59413 0.2358 0.4008 -0.15154 2021 7 19 59414 0.2368 0.3995 -0.15119 2021 7 20 59415 0.2379 0.3981 -0.15068 2021 7 21 59416 0.2388 0.3968 -0.14999 2021 7 22 59417 0.2396 0.3954 -0.14915 2021 7 23 59418 0.2404 0.3940 -0.14822 2021 7 24 59419 0.2411 0.3926 -0.14731 2021 7 25 59420 0.2417 0.3912 -0.14649 2021 7 26 59421 0.2423 0.3897 -0.14578 2021 7 27 59422 0.2429 0.3882 -0.14520 2021 7 28 59423 0.2435 0.3867 -0.14470 2021 7 29 59424 0.2441 0.3852 -0.14421 2021 7 30 59425 0.2445 0.3837 -0.14369 2021 7 31 59426 0.2450 0.3822 -0.14306 2021 8 1 59427 0.2454 0.3807 -0.14228 2021 8 2 59428 0.2457 0.3791 -0.14132 2021 8 3 59429 0.2461 0.3775 -0.14020 2021 8 4 59430 0.2464 0.3758 -0.13892 2021 8 5 59431 0.2467 0.3742 -0.13753 2021 8 6 59432 0.2471 0.3725 -0.13608 2021 8 7 59433 0.2474 0.3709 -0.13467 2021 8 8 59434 0.2477 0.3692 -0.13339 2021 8 9 59435 0.2479 0.3676 -0.13231 2021 8 10 59436 0.2481 0.3659 -0.13149 2021 8 11 59437 0.2483 0.3642 -0.13092 2021 8 12 59438 0.2485 0.3626 -0.13057 2021 8 13 59439 0.2487 0.3609 -0.13035 2021 8 14 59440 0.2488 0.3592 -0.13014 2021 8 15 59441 0.2490 0.3575 -0.12984 2021 8 16 59442 0.2490 0.3558 -0.12937 2021 8 17 59443 0.2491 0.3541 -0.12870 2021 8 18 59444 0.2491 0.3524 -0.12786 2021 8 19 59445 0.2491 0.3507 -0.12691 2021 8 20 59446 0.2491 0.3489 -0.12598 2021 8 21 59447 0.2490 0.3472 -0.12517 2021 8 22 59448 0.2490 0.3455 -0.12454 2021 8 23 59449 0.2489 0.3438 -0.12412 2021 8 24 59450 0.2487 0.3421 -0.12387 2021 8 25 59451 0.2485 0.3403 -0.12374 2021 8 26 59452 0.2483 0.3386 -0.12363 2021 8 27 59453 0.2481 0.3369 -0.12348 2021 8 28 59454 0.2478 0.3352 -0.12323 2021 8 29 59455 0.2475 0.3335 -0.12284 2021 8 30 59456 0.2472 0.3318 -0.12229 2021 8 31 59457 0.2468 0.3301 -0.12159 2021 9 1 59458 0.2464 0.3284 -0.12078 2021 9 2 59459 0.2460 0.3267 -0.11991 2021 9 3 59460 0.2455 0.3250 -0.11904 2021 9 4 59461 0.2450 0.3233 -0.11827 2021 9 5 59462 0.2445 0.3216 -0.11768 2021 9 6 59463 0.2439 0.3200 -0.11731 2021 9 7 59464 0.2433 0.3183 -0.11722 2021 9 8 59465 0.2427 0.3166 -0.11736 2021 9 9 59466 0.2421 0.3150 -0.11767 2021 9 10 59467 0.2414 0.3133 -0.11801 2021 9 11 59468 0.2407 0.3117 -0.11826 2021 9 12 59469 0.2399 0.3101 -0.11832 2021 9 13 59470 0.2392 0.3084 -0.11815 2021 9 14 59471 0.2384 0.3068 -0.11776 2021 9 15 59472 0.2375 0.3052 -0.11724 2021 9 16 59473 0.2367 0.3036 -0.11668 2021 9 17 59474 0.2358 0.3021 -0.11620 2021 9 18 59475 0.2348 0.3005 -0.11588 2021 9 19 59476 0.2339 0.2989 -0.11573 2021 9 20 59477 0.2329 0.2974 -0.11576 2021 9 21 59478 0.2319 0.2959 -0.11591 2021 9 22 59479 0.2309 0.2944 -0.11610 2021 9 23 59480 0.2298 0.2929 -0.11627 2021 9 24 59481 0.2287 0.2914 -0.11634 2021 9 25 59482 0.2276 0.2899 -0.11627 2021 9 26 59483 0.2265 0.2884 -0.11603 2021 9 27 59484 0.2253 0.2870 -0.11563 2021 9 28 59485 0.2241 0.2856 -0.11511 2021 9 29 59486 0.2229 0.2841 -0.11450 2021 9 30 59487 0.2216 0.2827 -0.11389 2021 10 1 59488 0.2204 0.2814 -0.11333 2021 10 2 59489 0.2191 0.2800 -0.11292 2021 10 3 59490 0.2177 0.2787 -0.11271 2021 10 4 59491 0.2164 0.2773 -0.11276 2021 10 5 59492 0.2150 0.2760 -0.11308 2021 10 6 59493 0.2136 0.2747 -0.11361 2021 10 7 59494 0.2122 0.2735 -0.11423 2021 10 8 59495 0.2108 0.2722 -0.11480 2021 10 9 59496 0.2093 0.2710 -0.11521 2021 10 10 59497 0.2078 0.2698 -0.11536 2021 10 11 59498 0.2063 0.2686 -0.11527 2021 10 12 59499 0.2047 0.2674 -0.11501 2021 10 13 59500 0.2032 0.2663 -0.11468 2021 10 14 59501 0.2016 0.2652 -0.11439 2021 10 15 59502 0.2000 0.2641 -0.11425 2021 10 16 59503 0.1984 0.2630 -0.11428 2021 10 17 59504 0.1968 0.2619 -0.11448 2021 10 18 59505 0.1951 0.2609 -0.11483 2021 10 19 59506 0.1934 0.2599 -0.11525 2021 10 20 59507 0.1917 0.2589 -0.11566 2021 10 21 59508 0.1900 0.2579 -0.11600 2021 10 22 59509 0.1883 0.2570 -0.11621 2021 10 23 59510 0.1865 0.2561 -0.11625 2021 10 24 59511 0.1848 0.2552 -0.11612 2021 10 25 59512 0.1830 0.2544 -0.11584 2021 10 26 59513 0.1812 0.2535 -0.11545 2021 10 27 59514 0.1794 0.2527 -0.11501 2021 10 28 59515 0.1775 0.2519 -0.11460 2021 10 29 59516 0.1757 0.2512 -0.11428 2021 10 30 59517 0.1738 0.2505 -0.11413 2021 10 31 59518 0.1719 0.2498 -0.11420 2021 11 1 59519 0.1701 0.2491 -0.11461 2021 11 2 59520 0.1682 0.2484 -0.11526 2021 11 3 59521 0.1663 0.2478 -0.11606 2021 11 4 59522 0.1643 0.2472 -0.11690 2021 11 5 59523 0.1624 0.2467 -0.11761 2021 11 6 59524 0.1605 0.2461 -0.11809 2021 11 7 59525 0.1585 0.2456 -0.11828 2021 11 8 59526 0.1565 0.2452 -0.11824 2021 11 9 59527 0.1546 0.2447 -0.11805 2021 11 10 59528 0.1526 0.2443 -0.11786 2021 11 11 59529 0.1506 0.2439 -0.11777 2021 11 12 59530 0.1486 0.2435 -0.11783 2021 11 13 59531 0.1466 0.2432 -0.11804 2021 11 14 59532 0.1446 0.2429 -0.11839 2021 11 15 59533 0.1426 0.2426 -0.11880 2021 11 16 59534 0.1405 0.2424 -0.11921 2021 11 17 59535 0.1385 0.2422 -0.11956 2021 11 18 59536 0.1365 0.2420 -0.11979 2021 11 19 59537 0.1344 0.2419 -0.11986 2021 11 20 59538 0.1324 0.2417 -0.11975 2021 11 21 59539 0.1304 0.2417 -0.11947 2021 11 22 59540 0.1283 0.2416 -0.11906 2021 11 23 59541 0.1263 0.2416 -0.11858 2021 11 24 59542 0.1242 0.2416 -0.11808 2021 11 25 59543 0.1222 0.2416 -0.11765 2021 11 26 59544 0.1201 0.2417 -0.11735 2021 11 27 59545 0.1181 0.2418 -0.11724 2021 11 28 59546 0.1161 0.2419 -0.11736 2021 11 29 59547 0.1140 0.2420 -0.11771 2021 11 30 59548 0.1120 0.2422 -0.11825 2021 12 1 59549 0.1099 0.2424 -0.11888 2021 12 2 59550 0.1079 0.2427 -0.11947 2021 12 3 59551 0.1059 0.2430 -0.11988 2021 12 4 59552 0.1039 0.2433 -0.12003 2021 12 5 59553 0.1018 0.2436 -0.11992 2021 12 6 59554 0.0998 0.2440 -0.11963 2021 12 7 59555 0.0978 0.2444 -0.11927 2021 12 8 59556 0.0958 0.2448 -0.11898 2021 12 9 59557 0.0938 0.2453 -0.11884 2021 12 10 59558 0.0918 0.2457 -0.11886 2021 12 11 59559 0.0899 0.2463 -0.11902 2021 12 12 59560 0.0879 0.2468 -0.11924 2021 12 13 59561 0.0859 0.2474 -0.11947 2021 12 14 59562 0.0840 0.2480 -0.11963 2021 12 15 59563 0.0821 0.2486 -0.11968 2021 12 16 59564 0.0801 0.2493 -0.11956 2021 12 17 59565 0.0782 0.2500 -0.11928 2021 12 18 59566 0.0763 0.2507 -0.11882 2021 12 19 59567 0.0744 0.2515 -0.11822 2021 12 20 59568 0.0725 0.2523 -0.11752 2021 12 21 59569 0.0707 0.2531 -0.11680 2021 12 22 59570 0.0688 0.2539 -0.11612 2021 12 23 59571 0.0670 0.2548 -0.11556 2021 12 24 59572 0.0652 0.2557 -0.11516 2021 12 25 59573 0.0634 0.2566 -0.11496 2021 12 26 59574 0.0616 0.2576 -0.11497 2021 12 27 59575 0.0598 0.2586 -0.11516 2021 12 28 59576 0.0581 0.2596 -0.11547 2021 12 29 59577 0.0563 0.2606 -0.11580 2021 12 30 59578 0.0546 0.2617 -0.11601 2021 12 31 59579 0.0529 0.2627 -0.11602 2022 1 1 59580 0.0512 0.2639 -0.11578 2022 1 2 59581 0.0496 0.2650 -0.11533 2022 1 3 59582 0.0479 0.2662 -0.11479 2022 1 4 59583 0.0463 0.2674 -0.11428 2022 1 5 59584 0.0447 0.2686 -0.11392 2022 1 6 59585 0.0432 0.2698 -0.11374 2022 1 7 59586 0.0416 0.2711 -0.11374 2022 1 8 59587 0.0401 0.2724 -0.11383 2022 1 9 59588 0.0386 0.2737 -0.11395 2022 1 10 59589 0.0371 0.2750 -0.11400 2022 1 11 59590 0.0356 0.2764 -0.11394 2022 1 12 59591 0.0342 0.2778 -0.11371 2022 1 13 59592 0.0328 0.2792 -0.11331 2022 1 14 59593 0.0314 0.2806 -0.11272 2022 1 15 59594 0.0300 0.2821 -0.11199 2022 1 16 59595 0.0287 0.2835 -0.11114 2022 1 17 59596 0.0274 0.2850 -0.11024 2022 1 18 59597 0.0261 0.2865 -0.10936 2022 1 19 59598 0.0248 0.2881 -0.10857 2022 1 20 59599 0.0236 0.2896 -0.10795 2022 1 21 59600 0.0224 0.2912 -0.10753 2022 1 22 59601 0.0212 0.2928 -0.10734 2022 1 23 59602 0.0201 0.2944 -0.10735 2022 1 24 59603 0.0190 0.2960 -0.10752 2022 1 25 59604 0.0179 0.2977 -0.10776 2022 1 26 59605 0.0168 0.2993 -0.10796 2022 1 27 59606 0.0158 0.3010 -0.10801 2022 1 28 59607 0.0148 0.3027 -0.10786 2022 1 29 59608 0.0138 0.3044 -0.10749 2022 1 30 59609 0.0129 0.3061 -0.10698 2022 1 31 59610 0.0120 0.3079 -0.10644 2022 2 1 59611 0.0111 0.3097 -0.10600 2022 2 2 59612 0.0102 0.3114 -0.10575 2022 2 3 59613 0.0094 0.3132 -0.10572 2022 2 4 59614 0.0086 0.3150 -0.10585 2022 2 5 59615 0.0079 0.3168 -0.10607 2022 2 6 59616 0.0071 0.3187 -0.10628 2022 2 7 59617 0.0065 0.3205 -0.10640 2022 2 8 59618 0.0058 0.3223 -0.10637 2022 2 9 59619 0.0052 0.3242 -0.10617 2022 2 10 59620 0.0046 0.3261 -0.10580 2022 2 11 59621 0.0040 0.3279 -0.10529 2022 2 12 59622 0.0035 0.3298 -0.10469 2022 2 13 59623 0.0030 0.3317 -0.10407 2022 2 14 59624 0.0026 0.3336 -0.10350 2022 2 15 59625 0.0021 0.3356 -0.10304 2022 2 16 59626 0.0017 0.3375 -0.10276 2022 2 17 59627 0.0014 0.3394 -0.10269 2022 2 18 59628 0.0011 0.3413 -0.10286 2022 2 19 59629 0.0008 0.3433 -0.10326 2022 2 20 59630 0.0005 0.3452 -0.10383 2022 2 21 59631 0.0003 0.3472 -0.10446 2022 2 22 59632 0.0001 0.3491 -0.10502 2022 2 23 59633 0.0000 0.3511 -0.10538 2022 2 24 59634 -0.0002 0.3531 -0.10550 2022 2 25 59635 -0.0002 0.3550 -0.10539 2022 2 26 59636 -0.0003 0.3570 -0.10514 2022 2 27 59637 -0.0003 0.3590 -0.10479 2022 2 28 59638 -0.0003 0.3609 -0.10458 2022 3 1 59639 -0.0002 0.3629 -0.10458 2022 3 2 59640 -0.0001 0.3649 -0.10482 2022 3 3 59641 0.0000 0.3669 -0.10526 2022 3 4 59642 0.0002 0.3688 -0.10585 2022 3 5 59643 0.0004 0.3708 -0.10656 2022 3 6 59644 0.0006 0.3728 -0.10721 2022 3 7 59645 0.0008 0.3747 -0.10777 2022 3 8 59646 0.0011 0.3767 -0.10817 2022 3 9 59647 0.0015 0.3787 -0.10840 2022 3 10 59648 0.0018 0.3806 -0.10847 2022 3 11 59649 0.0022 0.3826 -0.10834 2022 3 12 59650 0.0027 0.3845 -0.10811 2022 3 13 59651 0.0032 0.3865 -0.10787 2022 3 14 59652 0.0037 0.3884 -0.10772 2022 3 15 59653 0.0042 0.3903 -0.10772 2022 3 16 59654 0.0048 0.3922 -0.10788 2022 3 17 59655 0.0054 0.3942 -0.10825 2022 3 18 59656 0.0060 0.3961 -0.10886 2022 3 19 59657 0.0067 0.3980 -0.10959 2022 3 20 59658 0.0074 0.3998 -0.11051 2022 3 21 59659 0.0081 0.4017 -0.11136 2022 3 22 59660 0.0089 0.4036 -0.11203 2022 3 23 59661 0.0097 0.4054 -0.11243 2022 3 24 59662 0.0105 0.4073 -0.11253 2022 3 25 59663 0.0114 0.4091 -0.11241 2022 3 26 59664 0.0123 0.4109 -0.11225 2022 3 27 59665 0.0132 0.4127 -0.11214 2022 3 28 59666 0.0142 0.4145 -0.11224 2022 3 29 59667 0.0152 0.4163 -0.11255 2022 3 30 59668 0.0162 0.4181 -0.11307 2022 3 31 59669 0.0173 0.4198 -0.11377 2022 4 1 59670 0.0183 0.4216 -0.11453 2022 4 2 59671 0.0195 0.4233 -0.11529 2022 4 3 59672 0.0206 0.4250 -0.11594 2022 4 4 59673 0.0218 0.4267 -0.11643 2022 4 5 59674 0.0230 0.4284 -0.11678 2022 4 6 59675 0.0242 0.4300 -0.11687 2022 4 7 59676 0.0255 0.4317 -0.11671 2022 4 8 59677 0.0268 0.4333 -0.11645 2022 4 9 59678 0.0281 0.4349 -0.11620 2022 4 10 59679 0.0294 0.4365 -0.11604 2022 4 11 59680 0.0308 0.4380 -0.11601 2022 4 12 59681 0.0322 0.4396 -0.11612 2022 4 13 59682 0.0336 0.4411 -0.11644 2022 4 14 59683 0.0351 0.4426 -0.11696 2022 4 15 59684 0.0365 0.4441 -0.11764 2022 4 16 59685 0.0380 0.4455 -0.11842 2022 4 17 59686 0.0396 0.4469 -0.11926 2022 4 18 59687 0.0411 0.4484 -0.12001 2022 4 19 59688 0.0427 0.4498 -0.12055 2022 4 20 59689 0.0443 0.4511 -0.12086 2022 4 21 59690 0.0459 0.4525 -0.12101 2022 4 22 59691 0.0475 0.4538 -0.12107 2022 4 23 59692 0.0492 0.4551 -0.12112 2022 4 24 59693 0.0509 0.4563 -0.12117 2022 4 25 59694 0.0526 0.4576 -0.12133 2022 4 26 59695 0.0543 0.4588 -0.12163 2022 4 27 59696 0.0561 0.4600 -0.12206 2022 4 28 59697 0.0578 0.4612 -0.12258 2022 4 29 59698 0.0596 0.4623 -0.12301 2022 4 30 59699 0.0614 0.4634 -0.12329 2022 5 1 59700 0.0633 0.4645 -0.12335 2022 5 2 59701 0.0651 0.4656 -0.12322 2022 5 3 59702 0.0670 0.4666 -0.12283 2022 5 4 59703 0.0688 0.4676 -0.12223 2022 5 5 59704 0.0707 0.4686 -0.12153 2022 5 6 59705 0.0726 0.4695 -0.12072 2022 5 7 59706 0.0746 0.4704 -0.11986 2022 5 8 59707 0.0765 0.4713 -0.11913 2022 5 9 59708 0.0785 0.4722 -0.11855 2022 5 10 59709 0.0804 0.4730 -0.11815 2022 5 11 59710 0.0824 0.4738 -0.11797 2022 5 12 59711 0.0844 0.4746 -0.11794 2022 5 13 59712 0.0864 0.4754 -0.11800 2022 5 14 59713 0.0884 0.4761 -0.11807 2022 5 15 59714 0.0905 0.4768 -0.11812 2022 5 16 59715 0.0925 0.4774 -0.11798 2022 5 17 59716 0.0946 0.4780 -0.11760 2022 5 18 59717 0.0966 0.4786 -0.11697 2022 5 19 59718 0.0987 0.4792 -0.11630 2022 5 20 59719 0.1008 0.4797 -0.11573 2022 5 21 59720 0.1028 0.4802 -0.11522 2022 5 22 59721 0.1049 0.4807 -0.11487 2022 5 23 59722 0.1070 0.4811 -0.11465 2022 5 24 59723 0.1091 0.4815 -0.11455 2022 5 25 59724 0.1112 0.4819 -0.11449 2022 5 26 59725 0.1134 0.4822 -0.11443 2022 5 27 59726 0.1155 0.4825 -0.11428 2022 5 28 59727 0.1176 0.4828 -0.11396 2022 5 29 59728 0.1197 0.4830 -0.11351 2022 5 30 59729 0.1219 0.4832 -0.11286 2022 5 31 59730 0.1240 0.4834 -0.11205 2022 6 1 59731 0.1261 0.4836 -0.11105 2022 6 2 59732 0.1283 0.4837 -0.10990 2022 6 3 59733 0.1304 0.4838 -0.10871 2022 6 4 59734 0.1325 0.4838 -0.10755 2022 6 5 59735 0.1346 0.4838 -0.10639 2022 6 6 59736 0.1368 0.4838 -0.10539 2022 6 7 59737 0.1389 0.4838 -0.10456 2022 6 8 59738 0.1410 0.4837 -0.10392 2022 6 9 59739 0.1432 0.4836 -0.10338 2022 6 10 59740 0.1453 0.4834 -0.10296 2022 6 11 59741 0.1474 0.4832 -0.10251 2022 6 12 59742 0.1495 0.4830 -0.10189 2022 6 13 59743 0.1516 0.4828 -0.10102 2022 6 14 59744 0.1537 0.4825 -0.09991 2022 6 15 59745 0.1558 0.4822 -0.09854 2022 6 16 59746 0.1579 0.4819 -0.09708 2022 6 17 59747 0.1599 0.4815 -0.09574 2022 6 18 59748 0.1620 0.4811 -0.09464 2022 6 19 59749 0.1641 0.4806 -0.09379 2022 6 20 59750 0.1661 0.4802 -0.09319 2022 6 21 59751 0.1682 0.4797 -0.09274 2022 6 22 59752 0.1702 0.4792 -0.09230 2022 6 23 59753 0.1722 0.4786 -0.09177 2022 6 24 59754 0.1742 0.4780 -0.09108 2022 6 25 59755 0.1762 0.4774 -0.09016 2022 6 26 59756 0.1782 0.4767 -0.08898 2022 6 27 59757 0.1801 0.4760 -0.08769 2022 6 28 59758 0.1821 0.4753 -0.08627 2022 6 29 59759 0.1840 0.4746 -0.08473 2022 6 30 59760 0.1860 0.4738 -0.08318 2022 7 1 59761 0.1879 0.4730 -0.08178 2022 7 2 59762 0.1898 0.4722 -0.08054 2022 7 3 59763 0.1916 0.4713 -0.07945 2022 7 4 59764 0.1935 0.4704 -0.07861 2022 7 5 59765 0.1953 0.4695 -0.07800 2022 7 6 59766 0.1971 0.4686 -0.07762 2022 7 7 59767 0.1989 0.4676 -0.07741 2022 7 8 59768 0.2007 0.4666 -0.07720 2022 7 9 59769 0.2025 0.4656 -0.07692 2022 7 10 59770 0.2042 0.4645 -0.07647 2022 7 11 59771 0.2060 0.4634 -0.07574 2022 7 12 59772 0.2077 0.4623 -0.07482 2022 7 13 59773 0.2093 0.4612 -0.07372 2022 7 14 59774 0.2110 0.4600 -0.07257 2022 7 15 59775 0.2126 0.4588 -0.07154 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) 59388 -111.76 0.52 -9.40 0.21 59389 -111.87 0.52 -9.54 0.21 59390 -111.61 0.52 -9.63 0.21 59391 -111.20 0.46 -9.73 0.26 59392 -110.85 0.46 -9.97 0.25 59393 -110.70 0.46 -10.26 0.25 59394 -110.87 0.52 -10.32 0.18 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59388 0.212 0.209 -0.194 0.208 59389 0.201 0.209 -0.210 0.208 59390 0.190 0.209 -0.226 0.208 59391 0.183 0.181 -0.236 0.260 59392 0.181 0.184 -0.238 0.251 59393 0.183 0.184 -0.234 0.251 59394 0.186 0.208 -0.228 0.182 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).