********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 17 June 2021 Vol. XXXIV No. 024 ______________________________________________________________________ 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 Beginning 1 January 2017: TAI-UTC = 37.000 000 seconds *********************************************************************** * * * There will NOT be a leap second introduced * * in UTC at the end of June 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 6 11 59376 0.17427 .00009 0.43573 .00009 -0.181104 0.000017 21 6 12 59377 0.17542 .00009 0.43539 .00009 -0.180180 0.000018 21 6 13 59378 0.17649 .00009 0.43508 .00009 -0.179261 0.000016 21 6 14 59379 0.17752 .00009 0.43481 .00009 -0.178351 0.000013 21 6 15 59380 0.17843 .00009 0.43447 .00009 -0.177561 0.000010 21 6 16 59381 0.17922 .00009 0.43392 .00009 -0.176983 0.000010 21 6 17 59382 0.18002 .00009 0.43320 .00009 -0.176568 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 = 0.1281 + 0.0494 cos A + 0.1100 sin A + 0.0077 cos C - 0.0387 sin C y = 0.3653 + 0.1051 cos A - 0.0406 sin A - 0.0387 cos C - 0.0077 sin C UT1-UTC = -0.1580 + 0.00025 (MJD - 59390) - (UT2-UT1) where A = 2*pi*(MJD-59382)/365.25 and C = 2*pi*(MJD-59382)/435. TAI-UTC(MJD 59383) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59382)**0.80 S t = 0.00025 (MJD-59382)**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 6 18 59383 0.1810 0.4324 -0.17633 2021 6 19 59384 0.1821 0.4315 -0.17628 2021 6 20 59385 0.1833 0.4307 -0.17632 2021 6 21 59386 0.1846 0.4300 -0.17628 2021 6 22 59387 0.1860 0.4293 -0.17604 2021 6 23 59388 0.1875 0.4286 -0.17551 2021 6 24 59389 0.1889 0.4279 -0.17469 2021 6 25 59390 0.1903 0.4272 -0.17365 2021 6 26 59391 0.1917 0.4265 -0.17255 2021 6 27 59392 0.1930 0.4258 -0.17153 2021 6 28 59393 0.1944 0.4250 -0.17067 2021 6 29 59394 0.1957 0.4242 -0.16998 2021 6 30 59395 0.1970 0.4233 -0.16943 2021 7 1 59396 0.1983 0.4224 -0.16896 2021 7 2 59397 0.1996 0.4214 -0.16853 2021 7 3 59398 0.2009 0.4204 -0.16805 2021 7 4 59399 0.2022 0.4194 -0.16747 2021 7 5 59400 0.2035 0.4184 -0.16677 2021 7 6 59401 0.2049 0.4173 -0.16591 2021 7 7 59402 0.2062 0.4162 -0.16491 2021 7 8 59403 0.2074 0.4152 -0.16376 2021 7 9 59404 0.2087 0.4141 -0.16252 2021 7 10 59405 0.2099 0.4130 -0.16125 2021 7 11 59406 0.2110 0.4118 -0.16004 2021 7 12 59407 0.2121 0.4107 -0.15894 2021 7 13 59408 0.2132 0.4095 -0.15803 2021 7 14 59409 0.2143 0.4083 -0.15734 2021 7 15 59410 0.2153 0.4071 -0.15688 2021 7 16 59411 0.2163 0.4058 -0.15659 2021 7 17 59412 0.2173 0.4046 -0.15638 2021 7 18 59413 0.2183 0.4033 -0.15615 2021 7 19 59414 0.2193 0.4020 -0.15578 2021 7 20 59415 0.2202 0.4007 -0.15518 2021 7 21 59416 0.2211 0.3994 -0.15433 2021 7 22 59417 0.2220 0.3981 -0.15327 2021 7 23 59418 0.2229 0.3967 -0.15210 2021 7 24 59419 0.2237 0.3954 -0.15094 2021 7 25 59420 0.2245 0.3940 -0.14990 2021 7 26 59421 0.2252 0.3926 -0.14902 2021 7 27 59422 0.2260 0.3912 -0.14830 2021 7 28 59423 0.2267 0.3898 -0.14769 2021 7 29 59424 0.2274 0.3884 -0.14714 2021 7 30 59425 0.2281 0.3870 -0.14657 2021 7 31 59426 0.2287 0.3855 -0.14592 2021 8 1 59427 0.2293 0.3841 -0.14514 2021 8 2 59428 0.2299 0.3826 -0.14421 2021 8 3 59429 0.2305 0.3811 -0.14312 2021 8 4 59430 0.2310 0.3796 -0.14189 2021 8 5 59431 0.2315 0.3781 -0.14057 2021 8 6 59432 0.2320 0.3766 -0.13919 2021 8 7 59433 0.2325 0.3751 -0.13784 2021 8 8 59434 0.2329 0.3735 -0.13658 2021 8 9 59435 0.2333 0.3720 -0.13550 2021 8 10 59436 0.2337 0.3704 -0.13463 2021 8 11 59437 0.2340 0.3689 -0.13400 2021 8 12 59438 0.2343 0.3673 -0.13355 2021 8 13 59439 0.2346 0.3657 -0.13320 2021 8 14 59440 0.2349 0.3642 -0.13285 2021 8 15 59441 0.2351 0.3626 -0.13238 2021 8 16 59442 0.2353 0.3610 -0.13172 2021 8 17 59443 0.2355 0.3594 -0.13084 2021 8 18 59444 0.2356 0.3578 -0.12977 2021 8 19 59445 0.2357 0.3562 -0.12860 2021 8 20 59446 0.2358 0.3546 -0.12742 2021 8 21 59447 0.2358 0.3529 -0.12634 2021 8 22 59448 0.2359 0.3513 -0.12544 2021 8 23 59449 0.2359 0.3497 -0.12474 2021 8 24 59450 0.2358 0.3481 -0.12418 2021 8 25 59451 0.2357 0.3465 -0.12372 2021 8 26 59452 0.2356 0.3448 -0.12328 2021 8 27 59453 0.2355 0.3432 -0.12279 2021 8 28 59454 0.2354 0.3416 -0.12219 2021 8 29 59455 0.2352 0.3400 -0.12147 2021 8 30 59456 0.2349 0.3383 -0.12061 2021 8 31 59457 0.2347 0.3367 -0.11962 2021 9 1 59458 0.2344 0.3351 -0.11855 2021 9 2 59459 0.2341 0.3335 -0.11743 2021 9 3 59460 0.2338 0.3319 -0.11634 2021 9 4 59461 0.2334 0.3303 -0.11535 2021 9 5 59462 0.2330 0.3287 -0.11454 2021 9 6 59463 0.2325 0.3271 -0.11397 2021 9 7 59464 0.2321 0.3255 -0.11367 2021 9 8 59465 0.2316 0.3239 -0.11362 2021 9 9 59466 0.2311 0.3223 -0.11372 2021 9 10 59467 0.2305 0.3207 -0.11386 2021 9 11 59468 0.2299 0.3192 -0.11391 2021 9 12 59469 0.2293 0.3176 -0.11376 2021 9 13 59470 0.2287 0.3160 -0.11338 2021 9 14 59471 0.2280 0.3145 -0.11280 2021 9 15 59472 0.2273 0.3129 -0.11208 2021 9 16 59473 0.2266 0.3114 -0.11134 2021 9 17 59474 0.2258 0.3099 -0.11068 2021 9 18 59475 0.2251 0.3084 -0.11018 2021 9 19 59476 0.2242 0.3069 -0.10987 2021 9 20 59477 0.2234 0.3054 -0.10975 2021 9 21 59478 0.2225 0.3039 -0.10976 2021 9 22 59479 0.2216 0.3025 -0.10982 2021 9 23 59480 0.2207 0.3010 -0.10987 2021 9 24 59481 0.2198 0.2996 -0.10984 2021 9 25 59482 0.2188 0.2981 -0.10967 2021 9 26 59483 0.2178 0.2967 -0.10935 2021 9 27 59484 0.2168 0.2953 -0.10888 2021 9 28 59485 0.2157 0.2939 -0.10829 2021 9 29 59486 0.2146 0.2926 -0.10763 2021 9 30 59487 0.2135 0.2912 -0.10696 2021 10 1 59488 0.2124 0.2899 -0.10636 2021 10 2 59489 0.2112 0.2886 -0.10590 2021 10 3 59490 0.2100 0.2872 -0.10565 2021 10 4 59491 0.2088 0.2860 -0.10574 2021 10 5 59492 0.2076 0.2847 -0.10610 2021 10 6 59493 0.2063 0.2834 -0.10667 2021 10 7 59494 0.2051 0.2822 -0.10735 2021 10 8 59495 0.2037 0.2810 -0.10798 2021 10 9 59496 0.2024 0.2798 -0.10844 2021 10 10 59497 0.2011 0.2786 -0.10864 2021 10 11 59498 0.1997 0.2774 -0.10860 2021 10 12 59499 0.1983 0.2763 -0.10837 2021 10 13 59500 0.1969 0.2752 -0.10806 2021 10 14 59501 0.1954 0.2741 -0.10780 2021 10 15 59502 0.1940 0.2730 -0.10767 2021 10 16 59503 0.1925 0.2720 -0.10771 2021 10 17 59504 0.1910 0.2709 -0.10792 2021 10 18 59505 0.1895 0.2699 -0.10827 2021 10 19 59506 0.1880 0.2689 -0.10869 2021 10 20 59507 0.1864 0.2680 -0.10911 2021 10 21 59508 0.1848 0.2670 -0.10945 2021 10 22 59509 0.1832 0.2661 -0.10967 2021 10 23 59510 0.1816 0.2652 -0.10972 2021 10 24 59511 0.1800 0.2643 -0.10960 2021 10 25 59512 0.1783 0.2635 -0.10933 2021 10 26 59513 0.1767 0.2627 -0.10896 2021 10 27 59514 0.1750 0.2619 -0.10854 2021 10 28 59515 0.1733 0.2611 -0.10814 2021 10 29 59516 0.1716 0.2604 -0.10784 2021 10 30 59517 0.1699 0.2596 -0.10770 2021 10 31 59518 0.1681 0.2589 -0.10780 2021 11 1 59519 0.1664 0.2583 -0.10815 2021 11 2 59520 0.1646 0.2576 -0.10875 2021 11 3 59521 0.1629 0.2570 -0.10950 2021 11 4 59522 0.1611 0.2564 -0.11029 2021 11 5 59523 0.1593 0.2559 -0.11095 2021 11 6 59524 0.1575 0.2553 -0.11138 2021 11 7 59525 0.1556 0.2548 -0.11152 2021 11 8 59526 0.1538 0.2543 -0.11143 2021 11 9 59527 0.1520 0.2539 -0.11119 2021 11 10 59528 0.1501 0.2535 -0.11095 2021 11 11 59529 0.1482 0.2531 -0.11080 2021 11 12 59530 0.1464 0.2527 -0.11081 2021 11 13 59531 0.1445 0.2524 -0.11097 2021 11 14 59532 0.1426 0.2521 -0.11126 2021 11 15 59533 0.1407 0.2518 -0.11162 2021 11 16 59534 0.1388 0.2515 -0.11197 2021 11 17 59535 0.1369 0.2513 -0.11227 2021 11 18 59536 0.1350 0.2511 -0.11244 2021 11 19 59537 0.1331 0.2510 -0.11245 2021 11 20 59538 0.1312 0.2508 -0.11229 2021 11 21 59539 0.1293 0.2507 -0.11196 2021 11 22 59540 0.1274 0.2506 -0.11149 2021 11 23 59541 0.1255 0.2506 -0.11095 2021 11 24 59542 0.1235 0.2506 -0.11041 2021 11 25 59543 0.1216 0.2506 -0.10992 2021 11 26 59544 0.1197 0.2506 -0.10956 2021 11 27 59545 0.1177 0.2507 -0.10940 2021 11 28 59546 0.1158 0.2508 -0.10945 2021 11 29 59547 0.1139 0.2509 -0.10974 2021 11 30 59548 0.1120 0.2511 -0.11021 2021 12 1 59549 0.1101 0.2513 -0.11077 2021 12 2 59550 0.1081 0.2515 -0.11129 2021 12 3 59551 0.1062 0.2518 -0.11163 2021 12 4 59552 0.1043 0.2520 -0.11171 2021 12 5 59553 0.1024 0.2524 -0.11153 2021 12 6 59554 0.1005 0.2527 -0.11115 2021 12 7 59555 0.0986 0.2531 -0.11072 2021 12 8 59556 0.0967 0.2535 -0.11035 2021 12 9 59557 0.0948 0.2539 -0.11012 2021 12 10 59558 0.0929 0.2544 -0.11005 2021 12 11 59559 0.0911 0.2548 -0.11011 2021 12 12 59560 0.0892 0.2554 -0.11025 2021 12 13 59561 0.0873 0.2559 -0.11037 2021 12 14 59562 0.0855 0.2565 -0.11043 2021 12 15 59563 0.0837 0.2571 -0.11037 2021 12 16 59564 0.0818 0.2577 -0.11015 2021 12 17 59565 0.0800 0.2584 -0.10975 2021 12 18 59566 0.0782 0.2591 -0.10918 2021 12 19 59567 0.0764 0.2598 -0.10846 2021 12 20 59568 0.0746 0.2605 -0.10765 2021 12 21 59569 0.0729 0.2613 -0.10680 2021 12 22 59570 0.0711 0.2621 -0.10600 2021 12 23 59571 0.0694 0.2629 -0.10531 2021 12 24 59572 0.0677 0.2638 -0.10480 2021 12 25 59573 0.0659 0.2647 -0.10449 2021 12 26 59574 0.0642 0.2656 -0.10439 2021 12 27 59575 0.0626 0.2665 -0.10448 2021 12 28 59576 0.0609 0.2675 -0.10468 2021 12 29 59577 0.0592 0.2685 -0.10489 2021 12 30 59578 0.0576 0.2695 -0.10500 2021 12 31 59579 0.0560 0.2706 -0.10491 2022 1 1 59580 0.0544 0.2716 -0.10460 2022 1 2 59581 0.0528 0.2727 -0.10410 2022 1 3 59582 0.0513 0.2738 -0.10353 2022 1 4 59583 0.0497 0.2750 -0.10301 2022 1 5 59584 0.0482 0.2761 -0.10266 2022 1 6 59585 0.0467 0.2773 -0.10251 2022 1 7 59586 0.0452 0.2786 -0.10254 2022 1 8 59587 0.0438 0.2798 -0.10268 2022 1 9 59588 0.0423 0.2811 -0.10286 2022 1 10 59589 0.0409 0.2823 -0.10300 2022 1 11 59590 0.0395 0.2837 -0.10305 2022 1 12 59591 0.0382 0.2850 -0.10297 2022 1 13 59592 0.0368 0.2863 -0.10274 2022 1 14 59593 0.0355 0.2877 -0.10236 2022 1 15 59594 0.0342 0.2891 -0.10183 2022 1 16 59595 0.0329 0.2905 -0.10120 2022 1 17 59596 0.0317 0.2920 -0.10051 2022 1 18 59597 0.0304 0.2934 -0.09985 2022 1 19 59598 0.0292 0.2949 -0.09929 2022 1 20 59599 0.0281 0.2964 -0.09887 2022 1 21 59600 0.0269 0.2979 -0.09865 2022 1 22 59601 0.0258 0.2995 -0.09863 2022 1 23 59602 0.0247 0.3010 -0.09883 2022 1 24 59603 0.0237 0.3026 -0.09917 2022 1 25 59604 0.0226 0.3042 -0.09953 2022 1 26 59605 0.0216 0.3058 -0.09977 2022 1 27 59606 0.0206 0.3074 -0.09978 2022 1 28 59607 0.0197 0.3090 -0.09954 2022 1 29 59608 0.0188 0.3107 -0.09913 2022 1 30 59609 0.0179 0.3124 -0.09862 2022 1 31 59610 0.0170 0.3141 -0.09817 2022 2 1 59611 0.0162 0.3158 -0.09784 2022 2 2 59612 0.0154 0.3175 -0.09772 2022 2 3 59613 0.0146 0.3192 -0.09784 2022 2 4 59614 0.0138 0.3209 -0.09812 2022 2 5 59615 0.0131 0.3227 -0.09850 2022 2 6 59616 0.0124 0.3245 -0.09887 2022 2 7 59617 0.0118 0.3262 -0.09916 2022 2 8 59618 0.0112 0.3280 -0.09936 2022 2 9 59619 0.0106 0.3298 -0.09932 2022 2 10 59620 0.0100 0.3316 -0.09904 2022 2 11 59621 0.0095 0.3334 -0.09860 2022 2 12 59622 0.0090 0.3353 -0.09810 2022 2 13 59623 0.0086 0.3371 -0.09762 2022 2 14 59624 0.0081 0.3389 -0.09719 2022 2 15 59625 0.0077 0.3408 -0.09683 2022 2 16 59626 0.0074 0.3427 -0.09662 2022 2 17 59627 0.0070 0.3445 -0.09660 2022 2 18 59628 0.0067 0.3464 -0.09675 2022 2 19 59629 0.0065 0.3483 -0.09711 2022 2 20 59630 0.0062 0.3502 -0.09765 2022 2 21 59631 0.0060 0.3520 -0.09829 2022 2 22 59632 0.0059 0.3539 -0.09888 2022 2 23 59633 0.0057 0.3558 -0.09936 2022 2 24 59634 0.0056 0.3577 -0.09969 2022 2 25 59635 0.0056 0.3596 -0.09986 2022 2 26 59636 0.0056 0.3615 -0.09989 2022 2 27 59637 0.0056 0.3634 -0.09978 2022 2 28 59638 0.0056 0.3653 -0.09969 2022 3 1 59639 0.0057 0.3673 -0.09974 2022 3 2 59640 0.0058 0.3692 -0.10001 2022 3 3 59641 0.0059 0.3711 -0.10050 2022 3 4 59642 0.0061 0.3730 -0.10103 2022 3 5 59643 0.0063 0.3749 -0.10155 2022 3 6 59644 0.0065 0.3768 -0.10194 2022 3 7 59645 0.0068 0.3787 -0.10221 2022 3 8 59646 0.0071 0.3806 -0.10226 2022 3 9 59647 0.0074 0.3825 -0.10209 2022 3 10 59648 0.0078 0.3844 -0.10179 2022 3 11 59649 0.0082 0.3862 -0.10133 2022 3 12 59650 0.0087 0.3881 -0.10076 2022 3 13 59651 0.0091 0.3900 -0.10023 2022 3 14 59652 0.0096 0.3919 -0.09980 2022 3 15 59653 0.0102 0.3937 -0.09952 2022 3 16 59654 0.0107 0.3956 -0.09944 2022 3 17 59655 0.0113 0.3974 -0.09956 2022 3 18 59656 0.0120 0.3993 -0.09983 2022 3 19 59657 0.0126 0.4011 -0.10024 2022 3 20 59658 0.0133 0.4029 -0.10076 2022 3 21 59659 0.0141 0.4047 -0.10124 2022 3 22 59660 0.0148 0.4065 -0.10161 2022 3 23 59661 0.0156 0.4083 -0.10176 2022 3 24 59662 0.0165 0.4101 -0.10182 2022 3 25 59663 0.0173 0.4118 -0.10185 2022 3 26 59664 0.0182 0.4136 -0.10180 2022 3 27 59665 0.0191 0.4153 -0.10178 2022 3 28 59666 0.0201 0.4171 -0.10188 2022 3 29 59667 0.0211 0.4188 -0.10215 2022 3 30 59668 0.0221 0.4205 -0.10260 2022 3 31 59669 0.0231 0.4222 -0.10321 2022 4 1 59670 0.0242 0.4238 -0.10389 2022 4 2 59671 0.0253 0.4255 -0.10454 2022 4 3 59672 0.0264 0.4271 -0.10512 2022 4 4 59673 0.0276 0.4287 -0.10555 2022 4 5 59674 0.0288 0.4303 -0.10580 2022 4 6 59675 0.0300 0.4319 -0.10583 2022 4 7 59676 0.0312 0.4335 -0.10565 2022 4 8 59677 0.0325 0.4351 -0.10535 2022 4 9 59678 0.0338 0.4366 -0.10499 2022 4 10 59679 0.0351 0.4381 -0.10457 2022 4 11 59680 0.0365 0.4396 -0.10425 2022 4 12 59681 0.0378 0.4411 -0.10409 2022 4 13 59682 0.0392 0.4425 -0.10414 2022 4 14 59683 0.0407 0.4439 -0.10436 2022 4 15 59684 0.0421 0.4454 -0.10480 2022 4 16 59685 0.0436 0.4467 -0.10534 2022 4 17 59686 0.0451 0.4481 -0.10585 2022 4 18 59687 0.0466 0.4495 -0.10620 2022 4 19 59688 0.0482 0.4508 -0.10634 2022 4 20 59689 0.0497 0.4521 -0.10616 2022 4 21 59690 0.0513 0.4534 -0.10577 2022 4 22 59691 0.0530 0.4546 -0.10533 2022 4 23 59692 0.0546 0.4558 -0.10498 2022 4 24 59693 0.0563 0.4570 -0.10477 2022 4 25 59694 0.0579 0.4582 -0.10482 2022 4 26 59695 0.0596 0.4594 -0.10511 2022 4 27 59696 0.0614 0.4605 -0.10556 2022 4 28 59697 0.0631 0.4616 -0.10608 2022 4 29 59698 0.0649 0.4627 -0.10658 2022 4 30 59699 0.0666 0.4637 -0.10694 2022 5 1 59700 0.0684 0.4647 -0.10708 2022 5 2 59701 0.0702 0.4657 -0.10710 2022 5 3 59702 0.0721 0.4667 -0.10694 2022 5 4 59703 0.0739 0.4677 -0.10658 2022 5 5 59704 0.0758 0.4686 -0.10611 2022 5 6 59705 0.0777 0.4694 -0.10567 2022 5 7 59706 0.0795 0.4703 -0.10529 2022 5 8 59707 0.0815 0.4711 -0.10498 2022 5 9 59708 0.0834 0.4719 -0.10486 2022 5 10 59709 0.0853 0.4727 -0.10497 2022 5 11 59710 0.0873 0.4734 -0.10535 2022 5 12 59711 0.0892 0.4741 -0.10600 2022 5 13 59712 0.0912 0.4748 -0.10677 2022 5 14 59713 0.0932 0.4755 -0.10761 2022 5 15 59714 0.0952 0.4761 -0.10835 2022 5 16 59715 0.0972 0.4767 -0.10885 2022 5 17 59716 0.0992 0.4772 -0.10911 2022 5 18 59717 0.1012 0.4778 -0.10906 2022 5 19 59718 0.1033 0.4783 -0.10876 2022 5 20 59719 0.1053 0.4787 -0.10837 2022 5 21 59720 0.1073 0.4792 -0.10797 2022 5 22 59721 0.1094 0.4796 -0.10764 2022 5 23 59722 0.1115 0.4799 -0.10744 2022 5 24 59723 0.1135 0.4803 -0.10732 2022 5 25 59724 0.1156 0.4806 -0.10728 2022 5 26 59725 0.1177 0.4809 -0.10728 2022 5 27 59726 0.1198 0.4811 -0.10720 2022 5 28 59727 0.1219 0.4813 -0.10697 2022 5 29 59728 0.1239 0.4815 -0.10658 2022 5 30 59729 0.1260 0.4817 -0.10598 2022 5 31 59730 0.1281 0.4818 -0.10514 2022 6 1 59731 0.1302 0.4819 -0.10409 2022 6 2 59732 0.1323 0.4819 -0.10296 2022 6 3 59733 0.1344 0.4819 -0.10180 2022 6 4 59734 0.1365 0.4819 -0.10063 2022 6 5 59735 0.1386 0.4819 -0.09952 2022 6 6 59736 0.1407 0.4818 -0.09853 2022 6 7 59737 0.1428 0.4817 -0.09772 2022 6 8 59738 0.1449 0.4816 -0.09710 2022 6 9 59739 0.1470 0.4814 -0.09669 2022 6 10 59740 0.1490 0.4812 -0.09647 2022 6 11 59741 0.1511 0.4810 -0.09623 2022 6 12 59742 0.1532 0.4807 -0.09590 2022 6 13 59743 0.1553 0.4804 -0.09536 2022 6 14 59744 0.1573 0.4801 -0.09457 2022 6 15 59745 0.1594 0.4797 -0.09353 2022 6 16 59746 0.1614 0.4793 -0.09240 2022 6 17 59747 0.1635 0.4789 -0.09135 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) 59361 -108.46 0.34 -9.70 0.13 59362 -108.05 0.34 -9.79 0.13 59363 -107.40 0.34 -9.92 0.13 59364 -106.89 0.59 -10.18 0.17 59365 -106.70 0.59 -10.46 0.17 59366 -106.86 0.59 -10.51 0.17 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59361 0.155 0.136 -0.133 0.126 59362 0.171 0.136 -0.132 0.126 59363 0.190 0.136 -0.135 0.126 59364 0.208 0.235 -0.140 0.169 59365 0.226 0.235 -0.147 0.169 59366 0.243 0.235 -0.156 0.170 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).