********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 2 September 2021 Vol. XXXIV No. 035 ______________________________________________________________________ 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 8 27 59453 0.24605 .00009 0.33647 .00009 -0.123466 0.000020 21 8 28 59454 0.24607 .00009 0.33476 .00009 -0.122880 0.000020 21 8 29 59455 0.24601 .00009 0.33320 .00009 -0.122112 0.000010 21 8 30 59456 0.24570 .00009 0.33161 .00009 -0.121263 0.000005 21 8 31 59457 0.24507 .00009 0.32981 .00009 -0.120350 0.000004 21 9 1 59458 0.24438 .00009 0.32785 .00009 -0.119366 0.000004 21 9 2 59459 0.24386 .00009 0.32598 .00009 -0.118356 0.000055 _______________________________________________________________________ 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 = 0.1303 + 0.1197 cos A + 0.0029 sin A - 0.0136 cos C - 0.0446 sin C y = 0.3565 + 0.0132 cos A - 0.1082 sin A - 0.0446 cos C + 0.0136 sin C UT1-UTC = -0.1531 + 0.00023 (MJD - 59467) - (UT2-UT1) where A = 2*pi*(MJD-59459)/365.25 and C = 2*pi*(MJD-59459)/435. TAI-UTC(MJD 59460) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59459)**0.80 S t = 0.00025 (MJD-59459)**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 3 59460 0.2434 0.3242 -0.11726 2021 9 4 59461 0.2430 0.3225 -0.11622 2021 9 5 59462 0.2425 0.3208 -0.11535 2021 9 6 59463 0.2421 0.3192 -0.11472 2021 9 7 59464 0.2415 0.3175 -0.11433 2021 9 8 59465 0.2409 0.3159 -0.11415 2021 9 9 59466 0.2403 0.3143 -0.11410 2021 9 10 59467 0.2397 0.3127 -0.11408 2021 9 11 59468 0.2391 0.3111 -0.11398 2021 9 12 59469 0.2385 0.3096 -0.11372 2021 9 13 59470 0.2378 0.3081 -0.11326 2021 9 14 59471 0.2370 0.3066 -0.11263 2021 9 15 59472 0.2362 0.3051 -0.11191 2021 9 16 59473 0.2354 0.3037 -0.11119 2021 9 17 59474 0.2345 0.3022 -0.11053 2021 9 18 59475 0.2336 0.3007 -0.11003 2021 9 19 59476 0.2327 0.2992 -0.10971 2021 9 20 59477 0.2318 0.2977 -0.10957 2021 9 21 59478 0.2309 0.2963 -0.10956 2021 9 22 59479 0.2299 0.2949 -0.10962 2021 9 23 59480 0.2289 0.2935 -0.10968 2021 9 24 59481 0.2278 0.2921 -0.10966 2021 9 25 59482 0.2268 0.2907 -0.10953 2021 9 26 59483 0.2257 0.2894 -0.10926 2021 9 27 59484 0.2245 0.2880 -0.10887 2021 9 28 59485 0.2234 0.2867 -0.10839 2021 9 29 59486 0.2222 0.2854 -0.10788 2021 9 30 59487 0.2210 0.2840 -0.10739 2021 10 1 59488 0.2197 0.2828 -0.10699 2021 10 2 59489 0.2184 0.2815 -0.10675 2021 10 3 59490 0.2172 0.2802 -0.10674 2021 10 4 59491 0.2158 0.2789 -0.10702 2021 10 5 59492 0.2145 0.2777 -0.10759 2021 10 6 59493 0.2131 0.2765 -0.10839 2021 10 7 59494 0.2118 0.2753 -0.10931 2021 10 8 59495 0.2103 0.2741 -0.11019 2021 10 9 59496 0.2089 0.2730 -0.11089 2021 10 10 59497 0.2074 0.2718 -0.11133 2021 10 11 59498 0.2060 0.2707 -0.11151 2021 10 12 59499 0.2044 0.2696 -0.11151 2021 10 13 59500 0.2029 0.2686 -0.11142 2021 10 14 59501 0.2014 0.2675 -0.11136 2021 10 15 59502 0.1998 0.2665 -0.11142 2021 10 16 59503 0.1982 0.2655 -0.11165 2021 10 17 59504 0.1966 0.2645 -0.11203 2021 10 18 59505 0.1950 0.2635 -0.11254 2021 10 19 59506 0.1933 0.2626 -0.11312 2021 10 20 59507 0.1917 0.2617 -0.11369 2021 10 21 59508 0.1900 0.2608 -0.11419 2021 10 22 59509 0.1883 0.2599 -0.11457 2021 10 23 59510 0.1866 0.2590 -0.11479 2021 10 24 59511 0.1848 0.2582 -0.11485 2021 10 25 59512 0.1831 0.2574 -0.11476 2021 10 26 59513 0.1813 0.2567 -0.11457 2021 10 27 59514 0.1795 0.2559 -0.11434 2021 10 28 59515 0.1778 0.2552 -0.11414 2021 10 29 59516 0.1759 0.2545 -0.11404 2021 10 30 59517 0.1741 0.2538 -0.11412 2021 10 31 59518 0.1723 0.2532 -0.11443 2021 11 1 59519 0.1704 0.2526 -0.11501 2021 11 2 59520 0.1686 0.2520 -0.11583 2021 11 3 59521 0.1667 0.2514 -0.11682 2021 11 4 59522 0.1648 0.2509 -0.11784 2021 11 5 59523 0.1629 0.2504 -0.11875 2021 11 6 59524 0.1610 0.2499 -0.11943 2021 11 7 59525 0.1591 0.2495 -0.11984 2021 11 8 59526 0.1571 0.2490 -0.12001 2021 11 9 59527 0.1552 0.2486 -0.12005 2021 11 10 59528 0.1533 0.2483 -0.12008 2021 11 11 59529 0.1513 0.2479 -0.12021 2021 11 12 59530 0.1493 0.2476 -0.12048 2021 11 13 59531 0.1474 0.2473 -0.12090 2021 11 14 59532 0.1454 0.2471 -0.12144 2021 11 15 59533 0.1434 0.2469 -0.12204 2021 11 16 59534 0.1414 0.2467 -0.12264 2021 11 17 59535 0.1394 0.2465 -0.12317 2021 11 18 59536 0.1374 0.2464 -0.12358 2021 11 19 59537 0.1354 0.2463 -0.12382 2021 11 20 59538 0.1334 0.2462 -0.12389 2021 11 21 59539 0.1314 0.2461 -0.12378 2021 11 22 59540 0.1294 0.2461 -0.12355 2021 11 23 59541 0.1274 0.2461 -0.12324 2021 11 24 59542 0.1254 0.2462 -0.12291 2021 11 25 59543 0.1234 0.2462 -0.12264 2021 11 26 59544 0.1214 0.2463 -0.12250 2021 11 27 59545 0.1194 0.2465 -0.12254 2021 11 28 59546 0.1174 0.2466 -0.12280 2021 11 29 59547 0.1153 0.2468 -0.12329 2021 11 30 59548 0.1133 0.2470 -0.12396 2021 12 1 59549 0.1113 0.2473 -0.12472 2021 12 2 59550 0.1093 0.2476 -0.12542 2021 12 3 59551 0.1073 0.2479 -0.12594 2021 12 4 59552 0.1054 0.2482 -0.12619 2021 12 5 59553 0.1034 0.2486 -0.12617 2021 12 6 59554 0.1014 0.2490 -0.12595 2021 12 7 59555 0.0994 0.2494 -0.12567 2021 12 8 59556 0.0975 0.2498 -0.12545 2021 12 9 59557 0.0955 0.2503 -0.12536 2021 12 10 59558 0.0935 0.2508 -0.12544 2021 12 11 59559 0.0916 0.2514 -0.12565 2021 12 12 59560 0.0897 0.2519 -0.12592 2021 12 13 59561 0.0877 0.2525 -0.12619 2021 12 14 59562 0.0858 0.2532 -0.12640 2021 12 15 59563 0.0839 0.2538 -0.12648 2021 12 16 59564 0.0820 0.2545 -0.12640 2021 12 17 59565 0.0802 0.2552 -0.12615 2021 12 18 59566 0.0783 0.2560 -0.12571 2021 12 19 59567 0.0764 0.2567 -0.12513 2021 12 20 59568 0.0746 0.2575 -0.12452 2021 12 21 59569 0.0728 0.2584 -0.12387 2021 12 22 59570 0.0709 0.2592 -0.12328 2021 12 23 59571 0.0691 0.2601 -0.12279 2021 12 24 59572 0.0674 0.2610 -0.12248 2021 12 25 59573 0.0656 0.2619 -0.12237 2021 12 26 59574 0.0638 0.2629 -0.12247 2021 12 27 59575 0.0621 0.2639 -0.12276 2021 12 28 59576 0.0604 0.2649 -0.12316 2021 12 29 59577 0.0587 0.2659 -0.12359 2021 12 30 59578 0.0570 0.2670 -0.12390 2021 12 31 59579 0.0553 0.2681 -0.12402 2022 1 1 59580 0.0537 0.2692 -0.12389 2022 1 2 59581 0.0521 0.2704 -0.12356 2022 1 3 59582 0.0505 0.2715 -0.12313 2022 1 4 59583 0.0489 0.2727 -0.12275 2022 1 5 59584 0.0473 0.2739 -0.12251 2022 1 6 59585 0.0458 0.2752 -0.12247 2022 1 7 59586 0.0443 0.2764 -0.12260 2022 1 8 59587 0.0428 0.2777 -0.12284 2022 1 9 59588 0.0413 0.2790 -0.12311 2022 1 10 59589 0.0398 0.2803 -0.12332 2022 1 11 59590 0.0384 0.2817 -0.12342 2022 1 12 59591 0.0370 0.2831 -0.12337 2022 1 13 59592 0.0356 0.2845 -0.12315 2022 1 14 59593 0.0343 0.2859 -0.12276 2022 1 15 59594 0.0330 0.2873 -0.12223 2022 1 16 59595 0.0317 0.2888 -0.12160 2022 1 17 59596 0.0304 0.2902 -0.12094 2022 1 18 59597 0.0291 0.2917 -0.12031 2022 1 19 59598 0.0279 0.2933 -0.11979 2022 1 20 59599 0.0267 0.2948 -0.11944 2022 1 21 59600 0.0255 0.2963 -0.11929 2022 1 22 59601 0.0244 0.2979 -0.11936 2022 1 23 59602 0.0233 0.2995 -0.11960 2022 1 24 59603 0.0222 0.3011 -0.11996 2022 1 25 59604 0.0212 0.3027 -0.12035 2022 1 26 59605 0.0201 0.3044 -0.12066 2022 1 27 59606 0.0191 0.3060 -0.12081 2022 1 28 59607 0.0182 0.3077 -0.12075 2022 1 29 59608 0.0172 0.3094 -0.12048 2022 1 30 59609 0.0163 0.3111 -0.12010 2022 1 31 59610 0.0154 0.3128 -0.11971 2022 2 1 59611 0.0146 0.3145 -0.11946 2022 2 2 59612 0.0138 0.3163 -0.11941 2022 2 3 59613 0.0130 0.3180 -0.11958 2022 2 4 59614 0.0123 0.3198 -0.11991 2022 2 5 59615 0.0115 0.3216 -0.12032 2022 2 6 59616 0.0109 0.3234 -0.12071 2022 2 7 59617 0.0102 0.3252 -0.12099 2022 2 8 59618 0.0096 0.3270 -0.12112 2022 2 9 59619 0.0090 0.3288 -0.12108 2022 2 10 59620 0.0084 0.3306 -0.12085 2022 2 11 59621 0.0079 0.3325 -0.12048 2022 2 12 59622 0.0074 0.3343 -0.12000 2022 2 13 59623 0.0070 0.3362 -0.11948 2022 2 14 59624 0.0065 0.3380 -0.11898 2022 2 15 59625 0.0062 0.3399 -0.11858 2022 2 16 59626 0.0058 0.3418 -0.11834 2022 2 17 59627 0.0055 0.3437 -0.11833 2022 2 18 59628 0.0052 0.3456 -0.11854 2022 2 19 59629 0.0049 0.3475 -0.11896 2022 2 20 59630 0.0047 0.3494 -0.11952 2022 2 21 59631 0.0045 0.3513 -0.12012 2022 2 22 59632 0.0044 0.3532 -0.12066 2022 2 23 59633 0.0043 0.3551 -0.12104 2022 2 24 59634 0.0042 0.3570 -0.12123 2022 2 25 59635 0.0041 0.3589 -0.12121 2022 2 26 59636 0.0041 0.3608 -0.12106 2022 2 27 59637 0.0041 0.3628 -0.12088 2022 2 28 59638 0.0042 0.3647 -0.12081 2022 3 1 59639 0.0043 0.3666 -0.12094 2022 3 2 59640 0.0044 0.3685 -0.12131 2022 3 3 59641 0.0046 0.3704 -0.12190 2022 3 4 59642 0.0048 0.3724 -0.12265 2022 3 5 59643 0.0050 0.3743 -0.12343 2022 3 6 59644 0.0053 0.3762 -0.12416 2022 3 7 59645 0.0056 0.3781 -0.12476 2022 3 8 59646 0.0059 0.3800 -0.12518 2022 3 9 59647 0.0063 0.3819 -0.12540 2022 3 10 59648 0.0067 0.3838 -0.12542 2022 3 11 59649 0.0071 0.3857 -0.12528 2022 3 12 59650 0.0076 0.3876 -0.12501 2022 3 13 59651 0.0081 0.3895 -0.12468 2022 3 14 59652 0.0086 0.3913 -0.12436 2022 3 15 59653 0.0092 0.3932 -0.12412 2022 3 16 59654 0.0098 0.3951 -0.12403 2022 3 17 59655 0.0104 0.3969 -0.12414 2022 3 18 59656 0.0111 0.3988 -0.12445 2022 3 19 59657 0.0118 0.4006 -0.12492 2022 3 20 59658 0.0126 0.4024 -0.12545 2022 3 21 59659 0.0133 0.4042 -0.12594 2022 3 22 59660 0.0141 0.4060 -0.12628 2022 3 23 59661 0.0150 0.4078 -0.12642 2022 3 24 59662 0.0158 0.4096 -0.12634 2022 3 25 59663 0.0167 0.4114 -0.12609 2022 3 26 59664 0.0177 0.4131 -0.12577 2022 3 27 59665 0.0186 0.4149 -0.12549 2022 3 28 59666 0.0196 0.4166 -0.12536 2022 3 29 59667 0.0206 0.4183 -0.12544 2022 3 30 59668 0.0217 0.4200 -0.12576 2022 3 31 59669 0.0228 0.4217 -0.12627 2022 4 1 59670 0.0239 0.4234 -0.12690 2022 4 2 59671 0.0250 0.4250 -0.12758 2022 4 3 59672 0.0262 0.4267 -0.12822 2022 4 4 59673 0.0274 0.4283 -0.12876 2022 4 5 59674 0.0287 0.4299 -0.12917 2022 4 6 59675 0.0299 0.4315 -0.12943 2022 4 7 59676 0.0312 0.4330 -0.12955 2022 4 8 59677 0.0325 0.4346 -0.12956 2022 4 9 59678 0.0339 0.4361 -0.12953 2022 4 10 59679 0.0353 0.4376 -0.12953 2022 4 11 59680 0.0367 0.4391 -0.12964 2022 4 12 59681 0.0381 0.4406 -0.12990 2022 4 13 59682 0.0395 0.4420 -0.13033 2022 4 14 59683 0.0410 0.4435 -0.13098 2022 4 15 59684 0.0425 0.4449 -0.13182 2022 4 16 59685 0.0440 0.4463 -0.13279 2022 4 17 59686 0.0456 0.4476 -0.13375 2022 4 18 59687 0.0472 0.4490 -0.13457 2022 4 19 59688 0.0488 0.4503 -0.13510 2022 4 20 59689 0.0504 0.4516 -0.13530 2022 4 21 59690 0.0520 0.4529 -0.13520 2022 4 22 59691 0.0537 0.4541 -0.13497 2022 4 23 59692 0.0554 0.4553 -0.13476 2022 4 24 59693 0.0571 0.4565 -0.13456 2022 4 25 59694 0.0588 0.4577 -0.13446 2022 4 26 59695 0.0606 0.4589 -0.13459 2022 4 27 59696 0.0624 0.4600 -0.13489 2022 4 28 59697 0.0642 0.4611 -0.13528 2022 4 29 59698 0.0660 0.4622 -0.13567 2022 4 30 59699 0.0678 0.4632 -0.13590 2022 5 1 59700 0.0697 0.4642 -0.13595 2022 5 2 59701 0.0715 0.4652 -0.13578 2022 5 3 59702 0.0734 0.4662 -0.13539 2022 5 4 59703 0.0753 0.4671 -0.13484 2022 5 5 59704 0.0772 0.4680 -0.13414 2022 5 6 59705 0.0792 0.4689 -0.13336 2022 5 7 59706 0.0811 0.4698 -0.13271 2022 5 8 59707 0.0831 0.4706 -0.13213 2022 5 9 59708 0.0851 0.4714 -0.13170 2022 5 10 59709 0.0870 0.4721 -0.13144 2022 5 11 59710 0.0890 0.4729 -0.13133 2022 5 12 59711 0.0911 0.4736 -0.13139 2022 5 13 59712 0.0931 0.4743 -0.13164 2022 5 14 59713 0.0951 0.4749 -0.13198 2022 5 15 59714 0.0972 0.4755 -0.13221 2022 5 16 59715 0.0992 0.4761 -0.13223 2022 5 17 59716 0.1013 0.4767 -0.13198 2022 5 18 59717 0.1034 0.4772 -0.13146 2022 5 19 59718 0.1055 0.4777 -0.13079 2022 5 20 59719 0.1076 0.4782 -0.13009 2022 5 21 59720 0.1097 0.4786 -0.12947 2022 5 22 59721 0.1118 0.4790 -0.12905 2022 5 23 59722 0.1139 0.4794 -0.12885 2022 5 24 59723 0.1160 0.4797 -0.12879 2022 5 25 59724 0.1181 0.4800 -0.12878 2022 5 26 59725 0.1202 0.4803 -0.12877 2022 5 27 59726 0.1224 0.4806 -0.12870 2022 5 28 59727 0.1245 0.4808 -0.12849 2022 5 29 59728 0.1267 0.4810 -0.12811 2022 5 30 59729 0.1288 0.4811 -0.12759 2022 5 31 59730 0.1309 0.4812 -0.12682 2022 6 1 59731 0.1331 0.4813 -0.12584 2022 6 2 59732 0.1352 0.4814 -0.12474 2022 6 3 59733 0.1374 0.4814 -0.12357 2022 6 4 59734 0.1395 0.4814 -0.12244 2022 6 5 59735 0.1417 0.4814 -0.12138 2022 6 6 59736 0.1438 0.4813 -0.12050 2022 6 7 59737 0.1459 0.4812 -0.11983 2022 6 8 59738 0.1481 0.4810 -0.11937 2022 6 9 59739 0.1502 0.4809 -0.11906 2022 6 10 59740 0.1523 0.4807 -0.11886 2022 6 11 59741 0.1544 0.4805 -0.11874 2022 6 12 59742 0.1566 0.4802 -0.11849 2022 6 13 59743 0.1587 0.4799 -0.11807 2022 6 14 59744 0.1608 0.4796 -0.11740 2022 6 15 59745 0.1629 0.4792 -0.11652 2022 6 16 59746 0.1649 0.4788 -0.11556 2022 6 17 59747 0.1670 0.4784 -0.11458 2022 6 18 59748 0.1691 0.4780 -0.11372 2022 6 19 59749 0.1712 0.4775 -0.11305 2022 6 20 59750 0.1732 0.4770 -0.11258 2022 6 21 59751 0.1752 0.4765 -0.11221 2022 6 22 59752 0.1773 0.4759 -0.11179 2022 6 23 59753 0.1793 0.4753 -0.11126 2022 6 24 59754 0.1813 0.4746 -0.11060 2022 6 25 59755 0.1833 0.4740 -0.10970 2022 6 26 59756 0.1853 0.4733 -0.10871 2022 6 27 59757 0.1872 0.4726 -0.10751 2022 6 28 59758 0.1892 0.4718 -0.10613 2022 6 29 59759 0.1911 0.4711 -0.10459 2022 6 30 59760 0.1930 0.4702 -0.10294 2022 7 1 59761 0.1949 0.4694 -0.10130 2022 7 2 59762 0.1968 0.4685 -0.09978 2022 7 3 59763 0.1987 0.4677 -0.09843 2022 7 4 59764 0.2005 0.4667 -0.09732 2022 7 5 59765 0.2024 0.4658 -0.09640 2022 7 6 59766 0.2042 0.4648 -0.09563 2022 7 7 59767 0.2060 0.4638 -0.09501 2022 7 8 59768 0.2078 0.4628 -0.09441 2022 7 9 59769 0.2095 0.4617 -0.09376 2022 7 10 59770 0.2113 0.4606 -0.09295 2022 7 11 59771 0.2130 0.4595 -0.09193 2022 7 12 59772 0.2147 0.4584 -0.09075 2022 7 13 59773 0.2163 0.4572 -0.08938 2022 7 14 59774 0.2180 0.4561 -0.08794 2022 7 15 59775 0.2196 0.4548 -0.08665 2022 7 16 59776 0.2212 0.4536 -0.08563 2022 7 17 59777 0.2228 0.4523 -0.08490 2022 7 18 59778 0.2243 0.4511 -0.08435 2022 7 19 59779 0.2259 0.4498 -0.08383 2022 7 20 59780 0.2274 0.4484 -0.08323 2022 7 21 59781 0.2288 0.4471 -0.08247 2022 7 22 59782 0.2303 0.4457 -0.08147 2022 7 23 59783 0.2317 0.4443 -0.08026 2022 7 24 59784 0.2331 0.4429 -0.07892 2022 7 25 59785 0.2345 0.4415 -0.07747 2022 7 26 59786 0.2358 0.4400 -0.07594 2022 7 27 59787 0.2372 0.4385 -0.07440 2022 7 28 59788 0.2385 0.4370 -0.07297 2022 7 29 59789 0.2397 0.4355 -0.07168 2022 7 30 59790 0.2409 0.4340 -0.07054 2022 7 31 59791 0.2421 0.4324 -0.06949 2022 8 1 59792 0.2433 0.4308 -0.06858 2022 8 2 59793 0.2445 0.4293 -0.06779 2022 8 3 59794 0.2456 0.4276 -0.06711 2022 8 4 59795 0.2467 0.4260 -0.06649 2022 8 5 59796 0.2477 0.4244 -0.06574 2022 8 6 59797 0.2487 0.4227 -0.06481 2022 8 7 59798 0.2497 0.4210 -0.06364 2022 8 8 59799 0.2507 0.4194 -0.06228 2022 8 9 59800 0.2516 0.4177 -0.06075 2022 8 10 59801 0.2525 0.4159 -0.05916 2022 8 11 59802 0.2534 0.4142 -0.05773 2022 8 12 59803 0.2542 0.4125 -0.05651 2022 8 13 59804 0.2550 0.4107 -0.05551 2022 8 14 59805 0.2558 0.4089 -0.05480 2022 8 15 59806 0.2565 0.4072 -0.05424 2022 8 16 59807 0.2572 0.4054 -0.05369 2022 8 17 59808 0.2578 0.4036 -0.05302 2022 8 18 59809 0.2585 0.4018 -0.05212 2022 8 19 59810 0.2591 0.3999 -0.05096 2022 8 20 59811 0.2596 0.3981 -0.04955 2022 8 21 59812 0.2602 0.3963 -0.04803 2022 8 22 59813 0.2607 0.3944 -0.04640 2022 8 23 59814 0.2611 0.3926 -0.04477 2022 8 24 59815 0.2615 0.3907 -0.04319 2022 8 25 59816 0.2619 0.3888 -0.04184 2022 8 26 59817 0.2623 0.3870 -0.04081 2022 8 27 59818 0.2626 0.3851 -0.03997 2022 8 28 59819 0.2629 0.3832 -0.03934 2022 8 29 59820 0.2631 0.3813 -0.03887 2022 8 30 59821 0.2634 0.3794 -0.03853 2022 8 31 59822 0.2635 0.3775 -0.03822 2022 9 1 59823 0.2637 0.3756 -0.03787 2022 9 2 59824 0.2638 0.3737 -0.03741 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) 59440 -117.26 0.55 -9.77 0.14 59441 -117.67 0.41 -9.60 0.19 59442 -118.16 0.49 -9.47 0.17 59443 -118.48 0.55 -9.46 0.15 59444 -118.52 0.55 -9.53 0.15 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59440 0.207 0.219 -0.141 0.143 59441 0.202 0.165 -0.145 0.194 59442 0.200 0.196 -0.148 0.168 59443 0.200 0.218 -0.150 0.147 59444 0.202 0.218 -0.152 0.147 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).