********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 1 July 2021 Vol. XXXIV No. 026 ______________________________________________________________________ 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 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 25 59390 0.19384 .00009 0.42627 .00009 -0.173565 0.000016 21 6 26 59391 0.19556 .00009 0.42504 .00009 -0.172383 0.000011 21 6 27 59392 0.19726 .00009 0.42402 .00009 -0.171140 0.000011 21 6 28 59393 0.19906 .00009 0.42311 .00009 -0.169977 0.000012 21 6 29 59394 0.20104 .00009 0.42200 .00009 -0.169003 0.000015 21 6 30 59395 0.20309 .00009 0.42070 .00009 -0.168192 0.000015 21 7 1 59396 0.20501 .00009 0.41941 .00009 -0.167432 0.000016 _______________________________________________________________________ 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 = 0.1326 + 0.0703 cos A + 0.0995 sin A + 0.0059 cos C - 0.0409 sin C y = 0.3627 + 0.0966 cos A - 0.0595 sin A - 0.0409 cos C - 0.0059 sin C UT1-UTC = -0.1539 + 0.00025 (MJD - 59404) - (UT2-UT1) where A = 2*pi*(MJD-59396)/365.25 and C = 2*pi*(MJD-59396)/435. TAI-UTC(MJD 59397) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59396)**0.80 S t = 0.00025 (MJD-59396)**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 2 59397 0.2068 0.4182 -0.16672 2021 7 3 59398 0.2084 0.4169 -0.16597 2021 7 4 59399 0.2099 0.4157 -0.16514 2021 7 5 59400 0.2113 0.4146 -0.16420 2021 7 6 59401 0.2126 0.4134 -0.16312 2021 7 7 59402 0.2139 0.4122 -0.16189 2021 7 8 59403 0.2151 0.4110 -0.16055 2021 7 9 59404 0.2163 0.4097 -0.15913 2021 7 10 59405 0.2174 0.4085 -0.15767 2021 7 11 59406 0.2184 0.4073 -0.15623 2021 7 12 59407 0.2195 0.4060 -0.15487 2021 7 13 59408 0.2205 0.4048 -0.15367 2021 7 14 59409 0.2215 0.4035 -0.15267 2021 7 15 59410 0.2225 0.4023 -0.15185 2021 7 16 59411 0.2234 0.4011 -0.15120 2021 7 17 59412 0.2243 0.3998 -0.15066 2021 7 18 59413 0.2251 0.3985 -0.15014 2021 7 19 59414 0.2259 0.3973 -0.14955 2021 7 20 59415 0.2267 0.3960 -0.14878 2021 7 21 59416 0.2274 0.3947 -0.14780 2021 7 22 59417 0.2282 0.3934 -0.14666 2021 7 23 59418 0.2289 0.3921 -0.14544 2021 7 24 59419 0.2296 0.3907 -0.14427 2021 7 25 59420 0.2303 0.3894 -0.14322 2021 7 26 59421 0.2310 0.3880 -0.14236 2021 7 27 59422 0.2316 0.3866 -0.14167 2021 7 28 59423 0.2323 0.3852 -0.14112 2021 7 29 59424 0.2329 0.3837 -0.14062 2021 7 30 59425 0.2335 0.3823 -0.14011 2021 7 31 59426 0.2340 0.3808 -0.13954 2021 8 1 59427 0.2346 0.3793 -0.13886 2021 8 2 59428 0.2351 0.3779 -0.13805 2021 8 3 59429 0.2356 0.3763 -0.13709 2021 8 4 59430 0.2360 0.3748 -0.13601 2021 8 5 59431 0.2365 0.3733 -0.13484 2021 8 6 59432 0.2369 0.3717 -0.13365 2021 8 7 59433 0.2373 0.3702 -0.13249 2021 8 8 59434 0.2376 0.3686 -0.13143 2021 8 9 59435 0.2380 0.3670 -0.13054 2021 8 10 59436 0.2383 0.3654 -0.12988 2021 8 11 59437 0.2385 0.3639 -0.12944 2021 8 12 59438 0.2388 0.3623 -0.12917 2021 8 13 59439 0.2390 0.3606 -0.12901 2021 8 14 59440 0.2392 0.3590 -0.12885 2021 8 15 59441 0.2393 0.3574 -0.12858 2021 8 16 59442 0.2395 0.3558 -0.12812 2021 8 17 59443 0.2395 0.3542 -0.12745 2021 8 18 59444 0.2396 0.3525 -0.12659 2021 8 19 59445 0.2396 0.3509 -0.12562 2021 8 20 59446 0.2396 0.3493 -0.12466 2021 8 21 59447 0.2396 0.3476 -0.12380 2021 8 22 59448 0.2395 0.3460 -0.12311 2021 8 23 59449 0.2394 0.3444 -0.12261 2021 8 24 59450 0.2393 0.3427 -0.12226 2021 8 25 59451 0.2392 0.3411 -0.12202 2021 8 26 59452 0.2390 0.3395 -0.12179 2021 8 27 59453 0.2388 0.3378 -0.12150 2021 8 28 59454 0.2385 0.3362 -0.12110 2021 8 29 59455 0.2383 0.3346 -0.12054 2021 8 30 59456 0.2380 0.3329 -0.11983 2021 8 31 59457 0.2376 0.3313 -0.11896 2021 9 1 59458 0.2373 0.3297 -0.11799 2021 9 2 59459 0.2369 0.3281 -0.11695 2021 9 3 59460 0.2364 0.3264 -0.11593 2021 9 4 59461 0.2360 0.3248 -0.11499 2021 9 5 59462 0.2355 0.3232 -0.11422 2021 9 6 59463 0.2350 0.3216 -0.11368 2021 9 7 59464 0.2344 0.3200 -0.11340 2021 9 8 59465 0.2339 0.3184 -0.11336 2021 9 9 59466 0.2333 0.3169 -0.11348 2021 9 10 59467 0.2326 0.3153 -0.11363 2021 9 11 59468 0.2320 0.3137 -0.11369 2021 9 12 59469 0.2313 0.3121 -0.11356 2021 9 13 59470 0.2306 0.3106 -0.11319 2021 9 14 59471 0.2298 0.3090 -0.11261 2021 9 15 59472 0.2290 0.3075 -0.11189 2021 9 16 59473 0.2282 0.3060 -0.11114 2021 9 17 59474 0.2274 0.3045 -0.11047 2021 9 18 59475 0.2265 0.3030 -0.10997 2021 9 19 59476 0.2257 0.3015 -0.10966 2021 9 20 59477 0.2247 0.3000 -0.10956 2021 9 21 59478 0.2238 0.2985 -0.10959 2021 9 22 59479 0.2228 0.2971 -0.10968 2021 9 23 59480 0.2218 0.2956 -0.10977 2021 9 24 59481 0.2208 0.2942 -0.10977 2021 9 25 59482 0.2197 0.2928 -0.10964 2021 9 26 59483 0.2186 0.2914 -0.10936 2021 9 27 59484 0.2175 0.2900 -0.10894 2021 9 28 59485 0.2164 0.2886 -0.10839 2021 9 29 59486 0.2152 0.2873 -0.10776 2021 9 30 59487 0.2141 0.2859 -0.10713 2021 10 1 59488 0.2128 0.2846 -0.10655 2021 10 2 59489 0.2116 0.2833 -0.10612 2021 10 3 59490 0.2104 0.2820 -0.10589 2021 10 4 59491 0.2091 0.2807 -0.10593 2021 10 5 59492 0.2078 0.2795 -0.10624 2021 10 6 59493 0.2064 0.2782 -0.10676 2021 10 7 59494 0.2051 0.2770 -0.10738 2021 10 8 59495 0.2037 0.2758 -0.10796 2021 10 9 59496 0.2023 0.2746 -0.10836 2021 10 10 59497 0.2009 0.2735 -0.10851 2021 10 11 59498 0.1994 0.2723 -0.10840 2021 10 12 59499 0.1980 0.2712 -0.10811 2021 10 13 59500 0.1965 0.2701 -0.10775 2021 10 14 59501 0.1950 0.2691 -0.10743 2021 10 15 59502 0.1934 0.2680 -0.10724 2021 10 16 59503 0.1919 0.2670 -0.10723 2021 10 17 59504 0.1903 0.2660 -0.10740 2021 10 18 59505 0.1887 0.2650 -0.10776 2021 10 19 59506 0.1871 0.2640 -0.10819 2021 10 20 59507 0.1855 0.2631 -0.10863 2021 10 21 59508 0.1839 0.2622 -0.10899 2021 10 22 59509 0.1822 0.2613 -0.10922 2021 10 23 59510 0.1805 0.2604 -0.10929 2021 10 24 59511 0.1788 0.2596 -0.10919 2021 10 25 59512 0.1771 0.2587 -0.10894 2021 10 26 59513 0.1754 0.2579 -0.10859 2021 10 27 59514 0.1736 0.2572 -0.10819 2021 10 28 59515 0.1719 0.2564 -0.10782 2021 10 29 59516 0.1701 0.2557 -0.10754 2021 10 30 59517 0.1683 0.2550 -0.10744 2021 10 31 59518 0.1665 0.2544 -0.10757 2021 11 1 59519 0.1647 0.2537 -0.10796 2021 11 2 59520 0.1629 0.2531 -0.10859 2021 11 3 59521 0.1611 0.2525 -0.10938 2021 11 4 59522 0.1592 0.2520 -0.11020 2021 11 5 59523 0.1574 0.2514 -0.11091 2021 11 6 59524 0.1555 0.2509 -0.11137 2021 11 7 59525 0.1536 0.2505 -0.11156 2021 11 8 59526 0.1517 0.2500 -0.11150 2021 11 9 59527 0.1498 0.2496 -0.11131 2021 11 10 59528 0.1479 0.2492 -0.11111 2021 11 11 59529 0.1460 0.2489 -0.11101 2021 11 12 59530 0.1441 0.2485 -0.11106 2021 11 13 59531 0.1421 0.2482 -0.11127 2021 11 14 59532 0.1402 0.2480 -0.11160 2021 11 15 59533 0.1383 0.2477 -0.11200 2021 11 16 59534 0.1363 0.2475 -0.11240 2021 11 17 59535 0.1344 0.2473 -0.11274 2021 11 18 59536 0.1324 0.2472 -0.11295 2021 11 19 59537 0.1305 0.2470 -0.11300 2021 11 20 59538 0.1285 0.2469 -0.11287 2021 11 21 59539 0.1265 0.2469 -0.11258 2021 11 22 59540 0.1246 0.2468 -0.11215 2021 11 23 59541 0.1226 0.2468 -0.11164 2021 11 24 59542 0.1206 0.2468 -0.11112 2021 11 25 59543 0.1187 0.2469 -0.11067 2021 11 26 59544 0.1167 0.2470 -0.11034 2021 11 27 59545 0.1147 0.2471 -0.11020 2021 11 28 59546 0.1128 0.2472 -0.11028 2021 11 29 59547 0.1108 0.2474 -0.11060 2021 11 30 59548 0.1088 0.2476 -0.11110 2021 12 1 59549 0.1069 0.2478 -0.11169 2021 12 2 59550 0.1049 0.2481 -0.11224 2021 12 3 59551 0.1029 0.2484 -0.11262 2021 12 4 59552 0.1010 0.2487 -0.11273 2021 12 5 59553 0.0991 0.2491 -0.11258 2021 12 6 59554 0.0971 0.2495 -0.11224 2021 12 7 59555 0.0952 0.2499 -0.11184 2021 12 8 59556 0.0933 0.2503 -0.11151 2021 12 9 59557 0.0913 0.2508 -0.11132 2021 12 10 59558 0.0894 0.2513 -0.11130 2021 12 11 59559 0.0875 0.2518 -0.11141 2021 12 12 59560 0.0856 0.2524 -0.11159 2021 12 13 59561 0.0837 0.2530 -0.11177 2021 12 14 59562 0.0819 0.2536 -0.11188 2021 12 15 59563 0.0800 0.2542 -0.11188 2021 12 16 59564 0.0781 0.2549 -0.11173 2021 12 17 59565 0.0763 0.2556 -0.11140 2021 12 18 59566 0.0745 0.2563 -0.11090 2021 12 19 59567 0.0726 0.2571 -0.11026 2021 12 20 59568 0.0708 0.2579 -0.10952 2021 12 21 59569 0.0690 0.2587 -0.10876 2021 12 22 59570 0.0673 0.2596 -0.10804 2021 12 23 59571 0.0655 0.2604 -0.10743 2021 12 24 59572 0.0637 0.2613 -0.10698 2021 12 25 59573 0.0620 0.2623 -0.10673 2021 12 26 59574 0.0603 0.2632 -0.10669 2021 12 27 59575 0.0586 0.2642 -0.10682 2021 12 28 59576 0.0569 0.2652 -0.10706 2021 12 29 59577 0.0552 0.2663 -0.10731 2021 12 30 59578 0.0536 0.2673 -0.10744 2021 12 31 59579 0.0520 0.2684 -0.10736 2022 1 1 59580 0.0503 0.2695 -0.10701 2022 1 2 59581 0.0488 0.2707 -0.10645 2022 1 3 59582 0.0472 0.2718 -0.10578 2022 1 4 59583 0.0456 0.2730 -0.10514 2022 1 5 59584 0.0441 0.2742 -0.10464 2022 1 6 59585 0.0426 0.2755 -0.10433 2022 1 7 59586 0.0411 0.2767 -0.10420 2022 1 8 59587 0.0396 0.2780 -0.10419 2022 1 9 59588 0.0382 0.2793 -0.10423 2022 1 10 59589 0.0368 0.2807 -0.10423 2022 1 11 59590 0.0354 0.2820 -0.10413 2022 1 12 59591 0.0340 0.2834 -0.10388 2022 1 13 59592 0.0326 0.2848 -0.10345 2022 1 14 59593 0.0313 0.2862 -0.10283 2022 1 15 59594 0.0300 0.2876 -0.10206 2022 1 16 59595 0.0287 0.2891 -0.10120 2022 1 17 59596 0.0275 0.2906 -0.10030 2022 1 18 59597 0.0262 0.2921 -0.09946 2022 1 19 59598 0.0250 0.2936 -0.09874 2022 1 20 59599 0.0239 0.2952 -0.09822 2022 1 21 59600 0.0227 0.2967 -0.09792 2022 1 22 59601 0.0216 0.2983 -0.09785 2022 1 23 59602 0.0205 0.2999 -0.09799 2022 1 24 59603 0.0194 0.3015 -0.09826 2022 1 25 59604 0.0184 0.3031 -0.09858 2022 1 26 59605 0.0174 0.3048 -0.09883 2022 1 27 59606 0.0164 0.3065 -0.09892 2022 1 28 59607 0.0155 0.3081 -0.09878 2022 1 29 59608 0.0146 0.3098 -0.09842 2022 1 30 59609 0.0137 0.3116 -0.09793 2022 1 31 59610 0.0128 0.3133 -0.09743 2022 2 1 59611 0.0120 0.3150 -0.09707 2022 2 2 59612 0.0112 0.3168 -0.09692 2022 2 3 59613 0.0104 0.3186 -0.09700 2022 2 4 59614 0.0097 0.3203 -0.09727 2022 2 5 59615 0.0090 0.3221 -0.09765 2022 2 6 59616 0.0083 0.3239 -0.09806 2022 2 7 59617 0.0077 0.3258 -0.09841 2022 2 8 59618 0.0071 0.3276 -0.09863 2022 2 9 59619 0.0065 0.3294 -0.09870 2022 2 10 59620 0.0059 0.3313 -0.09859 2022 2 11 59621 0.0054 0.3331 -0.09829 2022 2 12 59622 0.0049 0.3350 -0.09784 2022 2 13 59623 0.0045 0.3369 -0.09734 2022 2 14 59624 0.0041 0.3388 -0.09689 2022 2 15 59625 0.0037 0.3407 -0.09653 2022 2 16 59626 0.0034 0.3426 -0.09630 2022 2 17 59627 0.0030 0.3445 -0.09625 2022 2 18 59628 0.0028 0.3464 -0.09645 2022 2 19 59629 0.0025 0.3483 -0.09680 2022 2 20 59630 0.0023 0.3502 -0.09740 2022 2 21 59631 0.0021 0.3522 -0.09802 2022 2 22 59632 0.0020 0.3541 -0.09856 2022 2 23 59633 0.0019 0.3560 -0.09890 2022 2 24 59634 0.0018 0.3580 -0.09896 2022 2 25 59635 0.0017 0.3599 -0.09878 2022 2 26 59636 0.0017 0.3618 -0.09849 2022 2 27 59637 0.0018 0.3638 -0.09818 2022 2 28 59638 0.0018 0.3657 -0.09803 2022 3 1 59639 0.0019 0.3677 -0.09806 2022 3 2 59640 0.0020 0.3696 -0.09832 2022 3 3 59641 0.0022 0.3716 -0.09881 2022 3 4 59642 0.0024 0.3735 -0.09943 2022 3 5 59643 0.0026 0.3755 -0.10011 2022 3 6 59644 0.0029 0.3774 -0.10072 2022 3 7 59645 0.0032 0.3793 -0.10122 2022 3 8 59646 0.0035 0.3813 -0.10159 2022 3 9 59647 0.0039 0.3832 -0.10172 2022 3 10 59648 0.0043 0.3851 -0.10160 2022 3 11 59649 0.0047 0.3870 -0.10134 2022 3 12 59650 0.0052 0.3889 -0.10106 2022 3 13 59651 0.0057 0.3909 -0.10084 2022 3 14 59652 0.0062 0.3928 -0.10071 2022 3 15 59653 0.0068 0.3947 -0.10071 2022 3 16 59654 0.0074 0.3965 -0.10089 2022 3 17 59655 0.0080 0.3984 -0.10129 2022 3 18 59656 0.0087 0.4003 -0.10186 2022 3 19 59657 0.0094 0.4022 -0.10259 2022 3 20 59658 0.0101 0.4040 -0.10346 2022 3 21 59659 0.0109 0.4059 -0.10432 2022 3 22 59660 0.0117 0.4077 -0.10505 2022 3 23 59661 0.0125 0.4095 -0.10558 2022 3 24 59662 0.0133 0.4113 -0.10595 2022 3 25 59663 0.0142 0.4131 -0.10619 2022 3 26 59664 0.0152 0.4149 -0.10634 2022 3 27 59665 0.0161 0.4167 -0.10643 2022 3 28 59666 0.0171 0.4184 -0.10660 2022 3 29 59667 0.0181 0.4202 -0.10693 2022 3 30 59668 0.0192 0.4219 -0.10745 2022 3 31 59669 0.0202 0.4236 -0.10815 2022 4 1 59670 0.0213 0.4253 -0.10883 2022 4 2 59671 0.0225 0.4270 -0.10943 2022 4 3 59672 0.0236 0.4287 -0.10985 2022 4 4 59673 0.0248 0.4303 -0.11011 2022 4 5 59674 0.0260 0.4320 -0.11013 2022 4 6 59675 0.0273 0.4336 -0.10993 2022 4 7 59676 0.0286 0.4352 -0.10960 2022 4 8 59677 0.0299 0.4368 -0.10914 2022 4 9 59678 0.0312 0.4383 -0.10858 2022 4 10 59679 0.0326 0.4399 -0.10812 2022 4 11 59680 0.0339 0.4414 -0.10779 2022 4 12 59681 0.0354 0.4429 -0.10763 2022 4 13 59682 0.0368 0.4444 -0.10768 2022 4 14 59683 0.0383 0.4458 -0.10792 2022 4 15 59684 0.0397 0.4473 -0.10830 2022 4 16 59685 0.0413 0.4487 -0.10876 2022 4 17 59686 0.0428 0.4501 -0.10925 2022 4 18 59687 0.0444 0.4514 -0.10963 2022 4 19 59688 0.0459 0.4528 -0.10981 2022 4 20 59689 0.0476 0.4541 -0.10973 2022 4 21 59690 0.0492 0.4554 -0.10957 2022 4 22 59691 0.0508 0.4567 -0.10943 2022 4 23 59692 0.0525 0.4579 -0.10928 2022 4 24 59693 0.0542 0.4592 -0.10922 2022 4 25 59694 0.0559 0.4604 -0.10930 2022 4 26 59695 0.0577 0.4615 -0.10954 2022 4 27 59696 0.0594 0.4627 -0.10990 2022 4 28 59697 0.0612 0.4638 -0.11034 2022 4 29 59698 0.0630 0.4649 -0.11077 2022 4 30 59699 0.0648 0.4660 -0.11110 2022 5 1 59700 0.0666 0.4670 -0.11131 2022 5 2 59701 0.0685 0.4680 -0.11134 2022 5 3 59702 0.0704 0.4690 -0.11119 2022 5 4 59703 0.0722 0.4700 -0.11083 2022 5 5 59704 0.0741 0.4709 -0.11027 2022 5 6 59705 0.0761 0.4718 -0.10963 2022 5 7 59706 0.0780 0.4727 -0.10897 2022 5 8 59707 0.0799 0.4736 -0.10827 2022 5 9 59708 0.0819 0.4744 -0.10770 2022 5 10 59709 0.0839 0.4752 -0.10730 2022 5 11 59710 0.0858 0.4759 -0.10711 2022 5 12 59711 0.0878 0.4766 -0.10707 2022 5 13 59712 0.0898 0.4773 -0.10719 2022 5 14 59713 0.0919 0.4780 -0.10735 2022 5 15 59714 0.0939 0.4787 -0.10741 2022 5 16 59715 0.0959 0.4793 -0.10724 2022 5 17 59716 0.0980 0.4798 -0.10683 2022 5 18 59717 0.1001 0.4804 -0.10610 2022 5 19 59718 0.1021 0.4809 -0.10520 2022 5 20 59719 0.1042 0.4814 -0.10433 2022 5 21 59720 0.1063 0.4818 -0.10362 2022 5 22 59721 0.1084 0.4822 -0.10311 2022 5 23 59722 0.1105 0.4826 -0.10286 2022 5 24 59723 0.1126 0.4830 -0.10281 2022 5 25 59724 0.1147 0.4833 -0.10284 2022 5 26 59725 0.1168 0.4836 -0.10286 2022 5 27 59726 0.1189 0.4839 -0.10278 2022 5 28 59727 0.1210 0.4841 -0.10250 2022 5 29 59728 0.1232 0.4843 -0.10197 2022 5 30 59729 0.1253 0.4845 -0.10132 2022 5 31 59730 0.1274 0.4846 -0.10049 2022 6 1 59731 0.1295 0.4847 -0.09949 2022 6 2 59732 0.1317 0.4847 -0.09842 2022 6 3 59733 0.1338 0.4848 -0.09744 2022 6 4 59734 0.1359 0.4848 -0.09656 2022 6 5 59735 0.1381 0.4848 -0.09579 2022 6 6 59736 0.1402 0.4847 -0.09524 2022 6 7 59737 0.1423 0.4846 -0.09491 2022 6 8 59738 0.1444 0.4845 -0.09485 2022 6 9 59739 0.1465 0.4843 -0.09501 2022 6 10 59740 0.1487 0.4841 -0.09524 2022 6 11 59741 0.1508 0.4839 -0.09545 2022 6 12 59742 0.1529 0.4836 -0.09553 2022 6 13 59743 0.1550 0.4833 -0.09532 2022 6 14 59744 0.1571 0.4830 -0.09489 2022 6 15 59745 0.1591 0.4827 -0.09418 2022 6 16 59746 0.1612 0.4823 -0.09332 2022 6 17 59747 0.1633 0.4819 -0.09247 2022 6 18 59748 0.1653 0.4814 -0.09168 2022 6 19 59749 0.1674 0.4809 -0.09101 2022 6 20 59750 0.1694 0.4804 -0.09046 2022 6 21 59751 0.1715 0.4799 -0.08994 2022 6 22 59752 0.1735 0.4793 -0.08943 2022 6 23 59753 0.1755 0.4787 -0.08888 2022 6 24 59754 0.1775 0.4781 -0.08820 2022 6 25 59755 0.1795 0.4774 -0.08733 2022 6 26 59756 0.1814 0.4767 -0.08628 2022 6 27 59757 0.1834 0.4760 -0.08505 2022 6 28 59758 0.1853 0.4752 -0.08361 2022 6 29 59759 0.1873 0.4744 -0.08202 2022 6 30 59760 0.1892 0.4736 -0.08041 2022 7 1 59761 0.1911 0.4727 -0.07883 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) 59376 -108.64 0.52 -10.27 0.13 59377 -108.67 0.50 -10.25 0.13 59378 -108.81 0.58 -10.16 0.12 59379 -108.99 0.78 -10.10 0.11 59380 -109.10 0.78 -10.09 0.11 59381 -109.03 0.74 -10.08 0.15 59382 -108.86 0.74 -10.05 0.15 59383 -108.82 0.74 -10.01 0.15 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59376 0.213 0.208 -0.130 0.132 59377 0.224 0.200 -0.128 0.127 59378 0.240 0.232 -0.127 0.119 59379 0.256 0.310 -0.130 0.107 59380 0.268 0.310 -0.140 0.107 59381 0.272 0.295 -0.158 0.149 59382 0.271 0.295 -0.182 0.149 59383 0.266 0.295 -0.211 0.149 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).