********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 19 August 2021 Vol. XXXIV No. 033 ______________________________________________________________________ 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 13 59439 0.24956 .00009 0.36151 .00009 -0.133827 0.000034 21 8 14 59440 0.24916 .00009 0.35977 .00009 -0.133519 0.000039 21 8 15 59441 0.24874 .00009 0.35812 .00009 -0.133179 0.000054 21 8 16 59442 0.24837 .00009 0.35652 .00009 -0.132652 0.000024 21 8 17 59443 0.24814 .00009 0.35490 .00009 -0.131826 0.000023 21 8 18 59444 0.24802 .00009 0.35327 .00009 -0.130741 0.000021 21 8 19 59445 0.24795 .00009 0.35169 .00009 -0.129592 0.000019 _______________________________________________________________________ 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 = 0.1302 + 0.1157 cos A + 0.0311 sin A - 0.0044 cos C - 0.0462 sin C y = 0.3580 + 0.0385 cos A - 0.1018 sin A - 0.0462 cos C + 0.0044 sin C UT1-UTC = -0.1605 + 0.00023 (MJD - 59453) - (UT2-UT1) where A = 2*pi*(MJD-59445)/365.25 and C = 2*pi*(MJD-59445)/435. TAI-UTC(MJD 59446) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59445)**0.80 S t = 0.00025 (MJD-59445)**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 8 20 59446 0.2479 0.3501 -0.12850 2021 8 21 59447 0.2477 0.3486 -0.12748 2021 8 22 59448 0.2474 0.3471 -0.12663 2021 8 23 59449 0.2471 0.3455 -0.12596 2021 8 24 59450 0.2468 0.3439 -0.12544 2021 8 25 59451 0.2464 0.3423 -0.12500 2021 8 26 59452 0.2461 0.3406 -0.12459 2021 8 27 59453 0.2458 0.3389 -0.12413 2021 8 28 59454 0.2455 0.3372 -0.12357 2021 8 29 59455 0.2452 0.3356 -0.12287 2021 8 30 59456 0.2450 0.3339 -0.12204 2021 8 31 59457 0.2448 0.3323 -0.12110 2021 9 1 59458 0.2445 0.3307 -0.12006 2021 9 2 59459 0.2442 0.3291 -0.11898 2021 9 3 59460 0.2438 0.3275 -0.11795 2021 9 4 59461 0.2434 0.3259 -0.11703 2021 9 5 59462 0.2429 0.3242 -0.11630 2021 9 6 59463 0.2425 0.3226 -0.11585 2021 9 7 59464 0.2420 0.3210 -0.11572 2021 9 8 59465 0.2414 0.3194 -0.11588 2021 9 9 59466 0.2408 0.3178 -0.11623 2021 9 10 59467 0.2402 0.3162 -0.11664 2021 9 11 59468 0.2396 0.3146 -0.11698 2021 9 12 59469 0.2389 0.3130 -0.11714 2021 9 13 59470 0.2382 0.3114 -0.11709 2021 9 14 59471 0.2375 0.3098 -0.11686 2021 9 15 59472 0.2367 0.3083 -0.11651 2021 9 16 59473 0.2359 0.3068 -0.11615 2021 9 17 59474 0.2351 0.3052 -0.11587 2021 9 18 59475 0.2342 0.3037 -0.11574 2021 9 19 59476 0.2333 0.3022 -0.11579 2021 9 20 59477 0.2324 0.3008 -0.11602 2021 9 21 59478 0.2314 0.2993 -0.11636 2021 9 22 59479 0.2304 0.2978 -0.11675 2021 9 23 59480 0.2294 0.2964 -0.11710 2021 9 24 59481 0.2284 0.2949 -0.11735 2021 9 25 59482 0.2273 0.2935 -0.11745 2021 9 26 59483 0.2262 0.2921 -0.11738 2021 9 27 59484 0.2251 0.2907 -0.11713 2021 9 28 59485 0.2239 0.2893 -0.11676 2021 9 29 59486 0.2227 0.2880 -0.11631 2021 9 30 59487 0.2215 0.2866 -0.11586 2021 10 1 59488 0.2203 0.2853 -0.11548 2021 10 2 59489 0.2190 0.2840 -0.11524 2021 10 3 59490 0.2177 0.2827 -0.11522 2021 10 4 59491 0.2164 0.2815 -0.11547 2021 10 5 59492 0.2151 0.2802 -0.11600 2021 10 6 59493 0.2137 0.2790 -0.11675 2021 10 7 59494 0.2124 0.2777 -0.11761 2021 10 8 59495 0.2110 0.2765 -0.11842 2021 10 9 59496 0.2095 0.2754 -0.11907 2021 10 10 59497 0.2081 0.2742 -0.11947 2021 10 11 59498 0.2066 0.2731 -0.11963 2021 10 12 59499 0.2051 0.2719 -0.11960 2021 10 13 59500 0.2036 0.2708 -0.11951 2021 10 14 59501 0.2021 0.2698 -0.11947 2021 10 15 59502 0.2005 0.2687 -0.11956 2021 10 16 59503 0.1989 0.2677 -0.11984 2021 10 17 59504 0.1973 0.2667 -0.12029 2021 10 18 59505 0.1957 0.2657 -0.12089 2021 10 19 59506 0.1941 0.2647 -0.12157 2021 10 20 59507 0.1924 0.2638 -0.12224 2021 10 21 59508 0.1907 0.2628 -0.12283 2021 10 22 59509 0.1891 0.2619 -0.12329 2021 10 23 59510 0.1873 0.2611 -0.12358 2021 10 24 59511 0.1856 0.2602 -0.12368 2021 10 25 59512 0.1839 0.2594 -0.12363 2021 10 26 59513 0.1821 0.2586 -0.12347 2021 10 27 59514 0.1803 0.2578 -0.12326 2021 10 28 59515 0.1786 0.2571 -0.12308 2021 10 29 59516 0.1767 0.2563 -0.12298 2021 10 30 59517 0.1749 0.2556 -0.12306 2021 10 31 59518 0.1731 0.2550 -0.12336 2021 11 1 59519 0.1712 0.2543 -0.12392 2021 11 2 59520 0.1694 0.2537 -0.12472 2021 11 3 59521 0.1675 0.2531 -0.12568 2021 11 4 59522 0.1656 0.2526 -0.12667 2021 11 5 59523 0.1637 0.2520 -0.12753 2021 11 6 59524 0.1618 0.2515 -0.12814 2021 11 7 59525 0.1599 0.2510 -0.12848 2021 11 8 59526 0.1580 0.2506 -0.12857 2021 11 9 59527 0.1561 0.2502 -0.12851 2021 11 10 59528 0.1541 0.2498 -0.12844 2021 11 11 59529 0.1522 0.2494 -0.12846 2021 11 12 59530 0.1502 0.2491 -0.12861 2021 11 13 59531 0.1482 0.2487 -0.12892 2021 11 14 59532 0.1463 0.2485 -0.12935 2021 11 15 59533 0.1443 0.2482 -0.12984 2021 11 16 59534 0.1423 0.2480 -0.13031 2021 11 17 59535 0.1403 0.2478 -0.13072 2021 11 18 59536 0.1383 0.2476 -0.13099 2021 11 19 59537 0.1363 0.2475 -0.13110 2021 11 20 59538 0.1343 0.2474 -0.13103 2021 11 21 59539 0.1323 0.2473 -0.13078 2021 11 22 59540 0.1303 0.2472 -0.13040 2021 11 23 59541 0.1283 0.2472 -0.12994 2021 11 24 59542 0.1263 0.2472 -0.12947 2021 11 25 59543 0.1243 0.2473 -0.12905 2021 11 26 59544 0.1223 0.2473 -0.12875 2021 11 27 59545 0.1203 0.2474 -0.12864 2021 11 28 59546 0.1183 0.2476 -0.12875 2021 11 29 59547 0.1163 0.2477 -0.12908 2021 11 30 59548 0.1143 0.2479 -0.12960 2021 12 1 59549 0.1123 0.2481 -0.13021 2021 12 2 59550 0.1103 0.2484 -0.13079 2021 12 3 59551 0.1083 0.2487 -0.13120 2021 12 4 59552 0.1063 0.2490 -0.13135 2021 12 5 59553 0.1043 0.2493 -0.13125 2021 12 6 59554 0.1023 0.2497 -0.13102 2021 12 7 59555 0.1004 0.2501 -0.13075 2021 12 8 59556 0.0984 0.2505 -0.13053 2021 12 9 59557 0.0964 0.2510 -0.13047 2021 12 10 59558 0.0945 0.2514 -0.13058 2021 12 11 59559 0.0926 0.2520 -0.13082 2021 12 12 59560 0.0906 0.2525 -0.13113 2021 12 13 59561 0.0887 0.2531 -0.13145 2021 12 14 59562 0.0868 0.2537 -0.13170 2021 12 15 59563 0.0849 0.2543 -0.13183 2021 12 16 59564 0.0830 0.2550 -0.13181 2021 12 17 59565 0.0811 0.2556 -0.13162 2021 12 18 59566 0.0792 0.2564 -0.13125 2021 12 19 59567 0.0774 0.2571 -0.13075 2021 12 20 59568 0.0755 0.2579 -0.13015 2021 12 21 59569 0.0737 0.2587 -0.12952 2021 12 22 59570 0.0719 0.2595 -0.12894 2021 12 23 59571 0.0701 0.2603 -0.12847 2021 12 24 59572 0.0683 0.2612 -0.12816 2021 12 25 59573 0.0665 0.2621 -0.12806 2021 12 26 59574 0.0648 0.2631 -0.12816 2021 12 27 59575 0.0630 0.2640 -0.12845 2021 12 28 59576 0.0613 0.2650 -0.12885 2021 12 29 59577 0.0596 0.2660 -0.12926 2021 12 30 59578 0.0579 0.2671 -0.12956 2021 12 31 59579 0.0563 0.2681 -0.12966 2022 1 1 59580 0.0546 0.2692 -0.12951 2022 1 2 59581 0.0530 0.2703 -0.12915 2022 1 3 59582 0.0514 0.2715 -0.12870 2022 1 4 59583 0.0498 0.2726 -0.12828 2022 1 5 59584 0.0482 0.2738 -0.12801 2022 1 6 59585 0.0467 0.2751 -0.12792 2022 1 7 59586 0.0452 0.2763 -0.12801 2022 1 8 59587 0.0437 0.2775 -0.12821 2022 1 9 59588 0.0422 0.2788 -0.12842 2022 1 10 59589 0.0407 0.2801 -0.12858 2022 1 11 59590 0.0393 0.2815 -0.12862 2022 1 12 59591 0.0379 0.2828 -0.12851 2022 1 13 59592 0.0365 0.2842 -0.12822 2022 1 14 59593 0.0352 0.2856 -0.12777 2022 1 15 59594 0.0338 0.2870 -0.12718 2022 1 16 59595 0.0325 0.2884 -0.12648 2022 1 17 59596 0.0313 0.2899 -0.12575 2022 1 18 59597 0.0300 0.2914 -0.12506 2022 1 19 59598 0.0288 0.2929 -0.12448 2022 1 20 59599 0.0276 0.2944 -0.12406 2022 1 21 59600 0.0264 0.2959 -0.12385 2022 1 22 59601 0.0253 0.2975 -0.12385 2022 1 23 59602 0.0241 0.2990 -0.12404 2022 1 24 59603 0.0230 0.3006 -0.12434 2022 1 25 59604 0.0220 0.3022 -0.12468 2022 1 26 59605 0.0210 0.3038 -0.12494 2022 1 27 59606 0.0199 0.3055 -0.12504 2022 1 28 59607 0.0190 0.3071 -0.12493 2022 1 29 59608 0.0180 0.3088 -0.12463 2022 1 30 59609 0.0171 0.3105 -0.12420 2022 1 31 59610 0.0162 0.3122 -0.12378 2022 2 1 59611 0.0154 0.3139 -0.12349 2022 2 2 59612 0.0146 0.3156 -0.12340 2022 2 3 59613 0.0138 0.3174 -0.12354 2022 2 4 59614 0.0130 0.3191 -0.12385 2022 2 5 59615 0.0123 0.3209 -0.12424 2022 2 6 59616 0.0116 0.3227 -0.12461 2022 2 7 59617 0.0109 0.3244 -0.12489 2022 2 8 59618 0.0103 0.3262 -0.12501 2022 2 9 59619 0.0097 0.3280 -0.12497 2022 2 10 59620 0.0091 0.3299 -0.12475 2022 2 11 59621 0.0086 0.3317 -0.12438 2022 2 12 59622 0.0081 0.3335 -0.12391 2022 2 13 59623 0.0077 0.3354 -0.12340 2022 2 14 59624 0.0072 0.3372 -0.12291 2022 2 15 59625 0.0068 0.3391 -0.12253 2022 2 16 59626 0.0065 0.3410 -0.12231 2022 2 17 59627 0.0061 0.3428 -0.12232 2022 2 18 59628 0.0058 0.3447 -0.12255 2022 2 19 59629 0.0056 0.3466 -0.12298 2022 2 20 59630 0.0053 0.3485 -0.12354 2022 2 21 59631 0.0051 0.3504 -0.12414 2022 2 22 59632 0.0050 0.3523 -0.12465 2022 2 23 59633 0.0049 0.3542 -0.12498 2022 2 24 59634 0.0048 0.3561 -0.12508 2022 2 25 59635 0.0047 0.3580 -0.12494 2022 2 26 59636 0.0047 0.3599 -0.12461 2022 2 27 59637 0.0047 0.3618 -0.12420 2022 2 28 59638 0.0047 0.3637 -0.12385 2022 3 1 59639 0.0048 0.3656 -0.12366 2022 3 2 59640 0.0049 0.3676 -0.12369 2022 3 3 59641 0.0051 0.3695 -0.12392 2022 3 4 59642 0.0053 0.3714 -0.12430 2022 3 5 59643 0.0055 0.3733 -0.12472 2022 3 6 59644 0.0057 0.3752 -0.12510 2022 3 7 59645 0.0060 0.3771 -0.12538 2022 3 8 59646 0.0063 0.3790 -0.12551 2022 3 9 59647 0.0067 0.3809 -0.12549 2022 3 10 59648 0.0071 0.3828 -0.12534 2022 3 11 59649 0.0075 0.3847 -0.12513 2022 3 12 59650 0.0080 0.3866 -0.12491 2022 3 13 59651 0.0085 0.3884 -0.12474 2022 3 14 59652 0.0090 0.3903 -0.12469 2022 3 15 59653 0.0095 0.3922 -0.12482 2022 3 16 59654 0.0101 0.3940 -0.12515 2022 3 17 59655 0.0108 0.3959 -0.12571 2022 3 18 59656 0.0114 0.3977 -0.12648 2022 3 19 59657 0.0121 0.3995 -0.12740 2022 3 20 59658 0.0128 0.4014 -0.12838 2022 3 21 59659 0.0136 0.4032 -0.12928 2022 3 22 59660 0.0144 0.4050 -0.13000 2022 3 23 59661 0.0152 0.4068 -0.13044 2022 3 24 59662 0.0161 0.4086 -0.13061 2022 3 25 59663 0.0169 0.4103 -0.13056 2022 3 26 59664 0.0179 0.4121 -0.13042 2022 3 27 59665 0.0188 0.4138 -0.13027 2022 3 28 59666 0.0198 0.4156 -0.13021 2022 3 29 59667 0.0208 0.4173 -0.13037 2022 3 30 59668 0.0218 0.4190 -0.13076 2022 3 31 59669 0.0229 0.4207 -0.13132 2022 4 1 59670 0.0240 0.4223 -0.13197 2022 4 2 59671 0.0251 0.4240 -0.13251 2022 4 3 59672 0.0263 0.4256 -0.13293 2022 4 4 59673 0.0275 0.4273 -0.13316 2022 4 5 59674 0.0287 0.4289 -0.13317 2022 4 6 59675 0.0300 0.4304 -0.13301 2022 4 7 59676 0.0312 0.4320 -0.13269 2022 4 8 59677 0.0325 0.4336 -0.13225 2022 4 9 59678 0.0339 0.4351 -0.13191 2022 4 10 59679 0.0352 0.4366 -0.13160 2022 4 11 59680 0.0366 0.4381 -0.13142 2022 4 12 59681 0.0380 0.4396 -0.13140 2022 4 13 59682 0.0395 0.4411 -0.13153 2022 4 14 59683 0.0409 0.4425 -0.13186 2022 4 15 59684 0.0424 0.4439 -0.13242 2022 4 16 59685 0.0439 0.4453 -0.13314 2022 4 17 59686 0.0455 0.4467 -0.13383 2022 4 18 59687 0.0470 0.4480 -0.13436 2022 4 19 59688 0.0486 0.4493 -0.13466 2022 4 20 59689 0.0502 0.4506 -0.13470 2022 4 21 59690 0.0518 0.4519 -0.13454 2022 4 22 59691 0.0535 0.4532 -0.13426 2022 4 23 59692 0.0552 0.4544 -0.13400 2022 4 24 59693 0.0569 0.4556 -0.13388 2022 4 25 59694 0.0586 0.4568 -0.13398 2022 4 26 59695 0.0603 0.4580 -0.13426 2022 4 27 59696 0.0621 0.4591 -0.13466 2022 4 28 59697 0.0639 0.4602 -0.13516 2022 4 29 59698 0.0656 0.4613 -0.13567 2022 4 30 59699 0.0675 0.4623 -0.13610 2022 5 1 59700 0.0693 0.4634 -0.13639 2022 5 2 59701 0.0711 0.4644 -0.13654 2022 5 3 59702 0.0730 0.4653 -0.13644 2022 5 4 59703 0.0749 0.4663 -0.13610 2022 5 5 59704 0.0768 0.4672 -0.13559 2022 5 6 59705 0.0787 0.4681 -0.13497 2022 5 7 59706 0.0806 0.4690 -0.13435 2022 5 8 59707 0.0826 0.4698 -0.13373 2022 5 9 59708 0.0845 0.4706 -0.13329 2022 5 10 59709 0.0865 0.4714 -0.13306 2022 5 11 59710 0.0885 0.4721 -0.13304 2022 5 12 59711 0.0905 0.4729 -0.13322 2022 5 13 59712 0.0925 0.4735 -0.13357 2022 5 14 59713 0.0945 0.4742 -0.13406 2022 5 15 59714 0.0966 0.4748 -0.13449 2022 5 16 59715 0.0986 0.4754 -0.13476 2022 5 17 59716 0.1007 0.4760 -0.13479 2022 5 18 59717 0.1027 0.4765 -0.13456 2022 5 19 59718 0.1048 0.4770 -0.13416 2022 5 20 59719 0.1069 0.4775 -0.13364 2022 5 21 59720 0.1089 0.4780 -0.13317 2022 5 22 59721 0.1110 0.4784 -0.13285 2022 5 23 59722 0.1131 0.4788 -0.13273 2022 5 24 59723 0.1152 0.4791 -0.13275 2022 5 25 59724 0.1173 0.4794 -0.13280 2022 5 26 59725 0.1194 0.4797 -0.13283 2022 5 27 59726 0.1216 0.4800 -0.13278 2022 5 28 59727 0.1237 0.4802 -0.13252 2022 5 29 59728 0.1258 0.4804 -0.13218 2022 5 30 59729 0.1279 0.4806 -0.13161 2022 5 31 59730 0.1301 0.4807 -0.13082 2022 6 1 59731 0.1322 0.4808 -0.12984 2022 6 2 59732 0.1343 0.4809 -0.12867 2022 6 3 59733 0.1364 0.4809 -0.12744 2022 6 4 59734 0.1386 0.4809 -0.12628 2022 6 5 59735 0.1407 0.4809 -0.12524 2022 6 6 59736 0.1428 0.4809 -0.12443 2022 6 7 59737 0.1449 0.4808 -0.12379 2022 6 8 59738 0.1470 0.4807 -0.12334 2022 6 9 59739 0.1492 0.4805 -0.12309 2022 6 10 59740 0.1513 0.4803 -0.12292 2022 6 11 59741 0.1534 0.4801 -0.12277 2022 6 12 59742 0.1555 0.4799 -0.12249 2022 6 13 59743 0.1576 0.4796 -0.12200 2022 6 14 59744 0.1596 0.4793 -0.12130 2022 6 15 59745 0.1617 0.4789 -0.12032 2022 6 16 59746 0.1638 0.4786 -0.11916 2022 6 17 59747 0.1659 0.4782 -0.11805 2022 6 18 59748 0.1679 0.4777 -0.11715 2022 6 19 59749 0.1699 0.4773 -0.11650 2022 6 20 59750 0.1720 0.4768 -0.11605 2022 6 21 59751 0.1740 0.4762 -0.11567 2022 6 22 59752 0.1760 0.4757 -0.11528 2022 6 23 59753 0.1780 0.4751 -0.11478 2022 6 24 59754 0.1800 0.4745 -0.11408 2022 6 25 59755 0.1820 0.4738 -0.11318 2022 6 26 59756 0.1839 0.4732 -0.11213 2022 6 27 59757 0.1859 0.4725 -0.11095 2022 6 28 59758 0.1878 0.4717 -0.10962 2022 6 29 59759 0.1897 0.4710 -0.10822 2022 6 30 59760 0.1916 0.4702 -0.10685 2022 7 1 59761 0.1935 0.4693 -0.10555 2022 7 2 59762 0.1954 0.4685 -0.10435 2022 7 3 59763 0.1973 0.4676 -0.10319 2022 7 4 59764 0.1991 0.4667 -0.10215 2022 7 5 59765 0.2009 0.4658 -0.10125 2022 7 6 59766 0.2027 0.4648 -0.10050 2022 7 7 59767 0.2045 0.4638 -0.09987 2022 7 8 59768 0.2063 0.4628 -0.09918 2022 7 9 59769 0.2080 0.4618 -0.09838 2022 7 10 59770 0.2097 0.4607 -0.09733 2022 7 11 59771 0.2114 0.4596 -0.09609 2022 7 12 59772 0.2131 0.4585 -0.09458 2022 7 13 59773 0.2148 0.4573 -0.09292 2022 7 14 59774 0.2164 0.4562 -0.09131 2022 7 15 59775 0.2180 0.4550 -0.08981 2022 7 16 59776 0.2196 0.4537 -0.08849 2022 7 17 59777 0.2212 0.4525 -0.08746 2022 7 18 59778 0.2227 0.4512 -0.08661 2022 7 19 59779 0.2242 0.4499 -0.08582 2022 7 20 59780 0.2257 0.4486 -0.08496 2022 7 21 59781 0.2272 0.4473 -0.08391 2022 7 22 59782 0.2286 0.4459 -0.08262 2022 7 23 59783 0.2300 0.4445 -0.08107 2022 7 24 59784 0.2314 0.4431 -0.07939 2022 7 25 59785 0.2328 0.4417 -0.07756 2022 7 26 59786 0.2341 0.4402 -0.07567 2022 7 27 59787 0.2354 0.4388 -0.07375 2022 7 28 59788 0.2367 0.4373 -0.07201 2022 7 29 59789 0.2379 0.4358 -0.07051 2022 7 30 59790 0.2391 0.4343 -0.06917 2022 7 31 59791 0.2403 0.4327 -0.06802 2022 8 1 59792 0.2415 0.4312 -0.06702 2022 8 2 59793 0.2426 0.4296 -0.06618 2022 8 3 59794 0.2437 0.4280 -0.06543 2022 8 4 59795 0.2448 0.4264 -0.06472 2022 8 5 59796 0.2458 0.4247 -0.06398 2022 8 6 59797 0.2469 0.4231 -0.06309 2022 8 7 59798 0.2478 0.4214 -0.06208 2022 8 8 59799 0.2488 0.4197 -0.06089 2022 8 9 59800 0.2497 0.4180 -0.05958 2022 8 10 59801 0.2506 0.4163 -0.05823 2022 8 11 59802 0.2514 0.4146 -0.05695 2022 8 12 59803 0.2523 0.4129 -0.05589 2022 8 13 59804 0.2530 0.4111 -0.05509 2022 8 14 59805 0.2538 0.4094 -0.05441 2022 8 15 59806 0.2545 0.4076 -0.05387 2022 8 16 59807 0.2552 0.4058 -0.05331 2022 8 17 59808 0.2559 0.4040 -0.05264 2022 8 18 59809 0.2565 0.4022 -0.05173 2022 8 19 59810 0.2571 0.4004 -0.05062 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) 59423 -115.70 0.39 -9.72 0.09 59424 -116.16 0.39 -9.49 0.09 59425 -116.52 0.39 -9.36 0.09 59426 -116.70 0.42 -9.37 0.09 59427 -116.77 0.67 -9.41 0.13 59428 -116.84 0.67 -9.38 0.13 59429 -116.93 0.81 -9.37 0.15 59430 -117.01 0.81 -9.48 0.15 59431 -117.04 0.81 -9.74 0.15 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59423 0.173 0.155 -0.086 0.087 59424 0.173 0.155 -0.090 0.087 59425 0.185 0.155 -0.099 0.087 59426 0.210 0.167 -0.111 0.093 59427 0.244 0.266 -0.123 0.128 59428 0.280 0.266 -0.132 0.128 59429 0.311 0.323 -0.139 0.150 59430 0.333 0.323 -0.140 0.150 59431 0.348 0.323 -0.138 0.150 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).