********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 29 July 2021 Vol. XXXIV No. 030 ______________________________________________________________________ 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 * * * * 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 23 59418 0.24359 .00009 0.39486 .00009 -0.148368 0.000025 21 7 24 59419 0.24437 .00009 0.39342 .00009 -0.147473 0.000027 21 7 25 59420 0.24458 .00009 0.39210 .00009 -0.146707 0.000028 21 7 26 59421 0.24433 .00009 0.39078 .00009 -0.146076 0.000025 21 7 27 59422 0.24409 .00009 0.38915 .00009 -0.145549 0.000024 21 7 28 59423 0.24406 .00009 0.38700 .00009 -0.145169 0.000023 21 7 29 59424 0.24423 .00009 0.38460 .00009 -0.144850 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 = 0.1375 + 0.1022 cos A + 0.0647 sin A + 0.0022 cos C - 0.0436 sin C y = 0.3594 + 0.0678 cos A - 0.0878 sin A - 0.0436 cos C - 0.0022 sin C UT1-UTC = -0.1636 + 0.00024 (MJD - 59432) - (UT2-UT1) where A = 2*pi*(MJD-59424)/365.25 and C = 2*pi*(MJD-59424)/435. TAI-UTC(MJD 59425) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59424)**0.80 S t = 0.00025 (MJD-59424)**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 30 59425 0.2446 0.3824 -0.14444 2021 7 31 59426 0.2451 0.3803 -0.14391 2021 8 1 59427 0.2456 0.3784 -0.14327 2021 8 2 59428 0.2460 0.3767 -0.14249 2021 8 3 59429 0.2462 0.3750 -0.14160 2021 8 4 59430 0.2464 0.3734 -0.14060 2021 8 5 59431 0.2466 0.3718 -0.13950 2021 8 6 59432 0.2467 0.3700 -0.13835 2021 8 7 59433 0.2468 0.3683 -0.13725 2021 8 8 59434 0.2469 0.3666 -0.13626 2021 8 9 59435 0.2470 0.3650 -0.13543 2021 8 10 59436 0.2471 0.3634 -0.13483 2021 8 11 59437 0.2472 0.3617 -0.13449 2021 8 12 59438 0.2473 0.3600 -0.13437 2021 8 13 59439 0.2474 0.3583 -0.13439 2021 8 14 59440 0.2475 0.3566 -0.13443 2021 8 15 59441 0.2477 0.3549 -0.13438 2021 8 16 59442 0.2478 0.3532 -0.13414 2021 8 17 59443 0.2480 0.3517 -0.13366 2021 8 18 59444 0.2480 0.3501 -0.13297 2021 8 19 59445 0.2481 0.3485 -0.13214 2021 8 20 59446 0.2480 0.3469 -0.13130 2021 8 21 59447 0.2480 0.3453 -0.13053 2021 8 22 59448 0.2479 0.3437 -0.12992 2021 8 23 59449 0.2477 0.3420 -0.12948 2021 8 24 59450 0.2476 0.3404 -0.12918 2021 8 25 59451 0.2474 0.3387 -0.12896 2021 8 26 59452 0.2473 0.3370 -0.12873 2021 8 27 59453 0.2470 0.3354 -0.12844 2021 8 28 59454 0.2468 0.3337 -0.12805 2021 8 29 59455 0.2465 0.3321 -0.12752 2021 8 30 59456 0.2462 0.3304 -0.12685 2021 8 31 59457 0.2458 0.3288 -0.12605 2021 9 1 59458 0.2454 0.3271 -0.12516 2021 9 2 59459 0.2450 0.3255 -0.12424 2021 9 3 59460 0.2445 0.3238 -0.12334 2021 9 4 59461 0.2440 0.3222 -0.12255 2021 9 5 59462 0.2435 0.3206 -0.12195 2021 9 6 59463 0.2429 0.3190 -0.12159 2021 9 7 59464 0.2423 0.3173 -0.12151 2021 9 8 59465 0.2416 0.3157 -0.12168 2021 9 9 59466 0.2410 0.3141 -0.12201 2021 9 10 59467 0.2403 0.3125 -0.12239 2021 9 11 59468 0.2395 0.3109 -0.12269 2021 9 12 59469 0.2388 0.3093 -0.12281 2021 9 13 59470 0.2380 0.3077 -0.12271 2021 9 14 59471 0.2372 0.3062 -0.12241 2021 9 15 59472 0.2363 0.3046 -0.12199 2021 9 16 59473 0.2354 0.3031 -0.12155 2021 9 17 59474 0.2345 0.3015 -0.12120 2021 9 18 59475 0.2336 0.3000 -0.12101 2021 9 19 59476 0.2326 0.2985 -0.12101 2021 9 20 59477 0.2316 0.2970 -0.12119 2021 9 21 59478 0.2306 0.2955 -0.12150 2021 9 22 59479 0.2296 0.2940 -0.12185 2021 9 23 59480 0.2285 0.2926 -0.12216 2021 9 24 59481 0.2274 0.2911 -0.12239 2021 9 25 59482 0.2263 0.2897 -0.12247 2021 9 26 59483 0.2251 0.2883 -0.12240 2021 9 27 59484 0.2239 0.2869 -0.12217 2021 9 28 59485 0.2227 0.2855 -0.12181 2021 9 29 59486 0.2215 0.2841 -0.12139 2021 9 30 59487 0.2203 0.2828 -0.12095 2021 10 1 59488 0.2190 0.2814 -0.12058 2021 10 2 59489 0.2177 0.2801 -0.12034 2021 10 3 59490 0.2163 0.2788 -0.12032 2021 10 4 59491 0.2150 0.2775 -0.12055 2021 10 5 59492 0.2136 0.2762 -0.12105 2021 10 6 59493 0.2122 0.2750 -0.12177 2021 10 7 59494 0.2108 0.2738 -0.12257 2021 10 8 59495 0.2093 0.2726 -0.12333 2021 10 9 59496 0.2079 0.2714 -0.12391 2021 10 10 59497 0.2064 0.2702 -0.12421 2021 10 11 59498 0.2049 0.2690 -0.12426 2021 10 12 59499 0.2033 0.2679 -0.12411 2021 10 13 59500 0.2018 0.2668 -0.12388 2021 10 14 59501 0.2002 0.2657 -0.12369 2021 10 15 59502 0.1986 0.2647 -0.12361 2021 10 16 59503 0.1970 0.2636 -0.12370 2021 10 17 59504 0.1953 0.2626 -0.12396 2021 10 18 59505 0.1937 0.2616 -0.12434 2021 10 19 59506 0.1920 0.2606 -0.12479 2021 10 20 59507 0.1903 0.2597 -0.12523 2021 10 21 59508 0.1886 0.2588 -0.12560 2021 10 22 59509 0.1868 0.2579 -0.12583 2021 10 23 59510 0.1851 0.2570 -0.12590 2021 10 24 59511 0.1833 0.2561 -0.12580 2021 10 25 59512 0.1815 0.2553 -0.12554 2021 10 26 59513 0.1797 0.2545 -0.12516 2021 10 27 59514 0.1779 0.2537 -0.12474 2021 10 28 59515 0.1761 0.2530 -0.12433 2021 10 29 59516 0.1743 0.2523 -0.12402 2021 10 30 59517 0.1724 0.2516 -0.12388 2021 10 31 59518 0.1705 0.2509 -0.12397 2021 11 1 59519 0.1687 0.2503 -0.12433 2021 11 2 59520 0.1668 0.2497 -0.12494 2021 11 3 59521 0.1649 0.2491 -0.12571 2021 11 4 59522 0.1629 0.2485 -0.12652 2021 11 5 59523 0.1610 0.2480 -0.12722 2021 11 6 59524 0.1591 0.2475 -0.12768 2021 11 7 59525 0.1571 0.2470 -0.12786 2021 11 8 59526 0.1552 0.2466 -0.12780 2021 11 9 59527 0.1532 0.2461 -0.12761 2021 11 10 59528 0.1512 0.2457 -0.12741 2021 11 11 59529 0.1492 0.2454 -0.12730 2021 11 12 59530 0.1473 0.2451 -0.12734 2021 11 13 59531 0.1453 0.2447 -0.12754 2021 11 14 59532 0.1433 0.2445 -0.12786 2021 11 15 59533 0.1412 0.2442 -0.12833 2021 11 16 59534 0.1392 0.2440 -0.12879 2021 11 17 59535 0.1372 0.2438 -0.12919 2021 11 18 59536 0.1352 0.2437 -0.12947 2021 11 19 59537 0.1332 0.2435 -0.12958 2021 11 20 59538 0.1311 0.2434 -0.12952 2021 11 21 59539 0.1291 0.2434 -0.12929 2021 11 22 59540 0.1271 0.2433 -0.12892 2021 11 23 59541 0.1251 0.2433 -0.12848 2021 11 24 59542 0.1230 0.2434 -0.12802 2021 11 25 59543 0.1210 0.2434 -0.12762 2021 11 26 59544 0.1189 0.2435 -0.12736 2021 11 27 59545 0.1169 0.2436 -0.12727 2021 11 28 59546 0.1149 0.2438 -0.12741 2021 11 29 59547 0.1129 0.2439 -0.12778 2021 11 30 59548 0.1108 0.2441 -0.12833 2021 12 1 59549 0.1088 0.2444 -0.12898 2021 12 2 59550 0.1068 0.2446 -0.12958 2021 12 3 59551 0.1048 0.2449 -0.13000 2021 12 4 59552 0.1028 0.2452 -0.13017 2021 12 5 59553 0.1008 0.2456 -0.13006 2021 12 6 59554 0.0988 0.2460 -0.12978 2021 12 7 59555 0.0968 0.2464 -0.12943 2021 12 8 59556 0.0948 0.2468 -0.12915 2021 12 9 59557 0.0928 0.2473 -0.12901 2021 12 10 59558 0.0908 0.2478 -0.12904 2021 12 11 59559 0.0889 0.2484 -0.12921 2021 12 12 59560 0.0869 0.2489 -0.12945 2021 12 13 59561 0.0850 0.2495 -0.12969 2021 12 14 59562 0.0830 0.2501 -0.12986 2021 12 15 59563 0.0811 0.2508 -0.12992 2021 12 16 59564 0.0792 0.2515 -0.12982 2021 12 17 59565 0.0773 0.2522 -0.12955 2021 12 18 59566 0.0754 0.2529 -0.12911 2021 12 19 59567 0.0736 0.2537 -0.12853 2021 12 20 59568 0.0717 0.2545 -0.12786 2021 12 21 59569 0.0698 0.2553 -0.12716 2021 12 22 59570 0.0680 0.2561 -0.12650 2021 12 23 59571 0.0662 0.2570 -0.12596 2021 12 24 59572 0.0644 0.2579 -0.12559 2021 12 25 59573 0.0626 0.2589 -0.12542 2021 12 26 59574 0.0608 0.2598 -0.12547 2021 12 27 59575 0.0591 0.2608 -0.12569 2021 12 28 59576 0.0574 0.2618 -0.12604 2021 12 29 59577 0.0556 0.2629 -0.12640 2021 12 30 59578 0.0539 0.2639 -0.12666 2021 12 31 59579 0.0523 0.2650 -0.12671 2022 1 1 59580 0.0506 0.2661 -0.12652 2022 1 2 59581 0.0490 0.2673 -0.12612 2022 1 3 59582 0.0473 0.2684 -0.12562 2022 1 4 59583 0.0458 0.2696 -0.12516 2022 1 5 59584 0.0442 0.2709 -0.12485 2022 1 6 59585 0.0426 0.2721 -0.12473 2022 1 7 59586 0.0411 0.2734 -0.12478 2022 1 8 59587 0.0396 0.2747 -0.12494 2022 1 9 59588 0.0381 0.2760 -0.12512 2022 1 10 59589 0.0366 0.2773 -0.12525 2022 1 11 59590 0.0352 0.2787 -0.12526 2022 1 12 59591 0.0338 0.2801 -0.12512 2022 1 13 59592 0.0324 0.2815 -0.12481 2022 1 14 59593 0.0310 0.2829 -0.12433 2022 1 15 59594 0.0297 0.2843 -0.12370 2022 1 16 59595 0.0283 0.2858 -0.12298 2022 1 17 59596 0.0271 0.2873 -0.12222 2022 1 18 59597 0.0258 0.2888 -0.12150 2022 1 19 59598 0.0246 0.2903 -0.12088 2022 1 20 59599 0.0233 0.2919 -0.12044 2022 1 21 59600 0.0222 0.2934 -0.12019 2022 1 22 59601 0.0210 0.2950 -0.12015 2022 1 23 59602 0.0199 0.2966 -0.12030 2022 1 24 59603 0.0188 0.2982 -0.12056 2022 1 25 59604 0.0177 0.2999 -0.12084 2022 1 26 59605 0.0167 0.3015 -0.12104 2022 1 27 59606 0.0157 0.3032 -0.12107 2022 1 28 59607 0.0147 0.3049 -0.12088 2022 1 29 59608 0.0137 0.3066 -0.12048 2022 1 30 59609 0.0128 0.3083 -0.11995 2022 1 31 59610 0.0119 0.3101 -0.11940 2022 2 1 59611 0.0111 0.3118 -0.11895 2022 2 2 59612 0.0103 0.3136 -0.11870 2022 2 3 59613 0.0095 0.3154 -0.11865 2022 2 4 59614 0.0087 0.3171 -0.11875 2022 2 5 59615 0.0080 0.3189 -0.11893 2022 2 6 59616 0.0073 0.3208 -0.11909 2022 2 7 59617 0.0066 0.3226 -0.11918 2022 2 8 59618 0.0060 0.3244 -0.11915 2022 2 9 59619 0.0054 0.3263 -0.11900 2022 2 10 59620 0.0048 0.3281 -0.11872 2022 2 11 59621 0.0043 0.3300 -0.11834 2022 2 12 59622 0.0038 0.3319 -0.11789 2022 2 13 59623 0.0033 0.3337 -0.11741 2022 2 14 59624 0.0029 0.3356 -0.11697 2022 2 15 59625 0.0025 0.3375 -0.11662 2022 2 16 59626 0.0021 0.3395 -0.11641 2022 2 17 59627 0.0018 0.3414 -0.11636 2022 2 18 59628 0.0015 0.3433 -0.11650 2022 2 19 59629 0.0012 0.3452 -0.11680 2022 2 20 59630 0.0010 0.3471 -0.11720 2022 2 21 59631 0.0008 0.3491 -0.11761 2022 2 22 59632 0.0006 0.3510 -0.11794 2022 2 23 59633 0.0005 0.3530 -0.11811 2022 2 24 59634 0.0004 0.3549 -0.11806 2022 2 25 59635 0.0003 0.3569 -0.11783 2022 2 26 59636 0.0003 0.3588 -0.11747 2022 2 27 59637 0.0003 0.3608 -0.11711 2022 2 28 59638 0.0003 0.3627 -0.11686 2022 3 1 59639 0.0004 0.3647 -0.11681 2022 3 2 59640 0.0005 0.3666 -0.11698 2022 3 3 59641 0.0007 0.3686 -0.11734 2022 3 4 59642 0.0009 0.3705 -0.11783 2022 3 5 59643 0.0011 0.3725 -0.11836 2022 3 6 59644 0.0013 0.3744 -0.11882 2022 3 7 59645 0.0016 0.3764 -0.11913 2022 3 8 59646 0.0019 0.3783 -0.11926 2022 3 9 59647 0.0023 0.3803 -0.11920 2022 3 10 59648 0.0027 0.3822 -0.11900 2022 3 11 59649 0.0031 0.3841 -0.11868 2022 3 12 59650 0.0036 0.3861 -0.11830 2022 3 13 59651 0.0041 0.3880 -0.11796 2022 3 14 59652 0.0046 0.3899 -0.11775 2022 3 15 59653 0.0051 0.3918 -0.11766 2022 3 16 59654 0.0057 0.3937 -0.11775 2022 3 17 59655 0.0064 0.3956 -0.11809 2022 3 18 59656 0.0070 0.3975 -0.11868 2022 3 19 59657 0.0077 0.3993 -0.11946 2022 3 20 59658 0.0084 0.4012 -0.12034 2022 3 21 59659 0.0092 0.4031 -0.12123 2022 3 22 59660 0.0100 0.4049 -0.12192 2022 3 23 59661 0.0108 0.4067 -0.12234 2022 3 24 59662 0.0117 0.4086 -0.12249 2022 3 25 59663 0.0126 0.4104 -0.12243 2022 3 26 59664 0.0135 0.4122 -0.12231 2022 3 27 59665 0.0144 0.4140 -0.12217 2022 3 28 59666 0.0154 0.4157 -0.12221 2022 3 29 59667 0.0164 0.4175 -0.12249 2022 3 30 59668 0.0175 0.4192 -0.12299 2022 3 31 59669 0.0185 0.4210 -0.12363 2022 4 1 59670 0.0196 0.4227 -0.12437 2022 4 2 59671 0.0208 0.4244 -0.12516 2022 4 3 59672 0.0219 0.4261 -0.12584 2022 4 4 59673 0.0231 0.4277 -0.12640 2022 4 5 59674 0.0243 0.4294 -0.12677 2022 4 6 59675 0.0256 0.4310 -0.12697 2022 4 7 59676 0.0269 0.4326 -0.12700 2022 4 8 59677 0.0282 0.4342 -0.12687 2022 4 9 59678 0.0295 0.4358 -0.12666 2022 4 10 59679 0.0309 0.4373 -0.12648 2022 4 11 59680 0.0323 0.4389 -0.12643 2022 4 12 59681 0.0337 0.4404 -0.12655 2022 4 13 59682 0.0351 0.4419 -0.12684 2022 4 14 59683 0.0366 0.4434 -0.12734 2022 4 15 59684 0.0381 0.4448 -0.12806 2022 4 16 59685 0.0396 0.4463 -0.12884 2022 4 17 59686 0.0411 0.4477 -0.12973 2022 4 18 59687 0.0427 0.4491 -0.13047 2022 4 19 59688 0.0443 0.4504 -0.13095 2022 4 20 59689 0.0459 0.4518 -0.13113 2022 4 21 59690 0.0475 0.4531 -0.13100 2022 4 22 59691 0.0492 0.4544 -0.13071 2022 4 23 59692 0.0509 0.4557 -0.13045 2022 4 24 59693 0.0526 0.4569 -0.13030 2022 4 25 59694 0.0543 0.4581 -0.13039 2022 4 26 59695 0.0560 0.4593 -0.13066 2022 4 27 59696 0.0578 0.4605 -0.13109 2022 4 28 59697 0.0596 0.4616 -0.13162 2022 4 29 59698 0.0614 0.4627 -0.13213 2022 4 30 59699 0.0632 0.4638 -0.13257 2022 5 1 59700 0.0650 0.4649 -0.13286 2022 5 2 59701 0.0669 0.4659 -0.13296 2022 5 3 59702 0.0687 0.4670 -0.13290 2022 5 4 59703 0.0706 0.4679 -0.13259 2022 5 5 59704 0.0725 0.4689 -0.13206 2022 5 6 59705 0.0745 0.4698 -0.13146 2022 5 7 59706 0.0764 0.4707 -0.13090 2022 5 8 59707 0.0783 0.4716 -0.13046 2022 5 9 59708 0.0803 0.4724 -0.13018 2022 5 10 59709 0.0823 0.4732 -0.13006 2022 5 11 59710 0.0843 0.4740 -0.13014 2022 5 12 59711 0.0863 0.4748 -0.13039 2022 5 13 59712 0.0883 0.4755 -0.13075 2022 5 14 59713 0.0903 0.4762 -0.13115 2022 5 15 59714 0.0924 0.4769 -0.13154 2022 5 16 59715 0.0944 0.4775 -0.13178 2022 5 17 59716 0.0965 0.4781 -0.13176 2022 5 18 59717 0.0985 0.4787 -0.13152 2022 5 19 59718 0.1006 0.4792 -0.13116 2022 5 20 59719 0.1027 0.4797 -0.13079 2022 5 21 59720 0.1048 0.4802 -0.13048 2022 5 22 59721 0.1069 0.4806 -0.13023 2022 5 23 59722 0.1090 0.4810 -0.13009 2022 5 24 59723 0.1111 0.4814 -0.13005 2022 5 25 59724 0.1132 0.4818 -0.13007 2022 5 26 59725 0.1153 0.4821 -0.13009 2022 5 27 59726 0.1174 0.4824 -0.12993 2022 5 28 59727 0.1196 0.4826 -0.12958 2022 5 29 59728 0.1217 0.4829 -0.12896 2022 5 30 59729 0.1238 0.4831 -0.12815 2022 5 31 59730 0.1260 0.4832 -0.12711 2022 6 1 59731 0.1281 0.4834 -0.12587 2022 6 2 59732 0.1302 0.4834 -0.12458 2022 6 3 59733 0.1324 0.4835 -0.12322 2022 6 4 59734 0.1345 0.4835 -0.12186 2022 6 5 59735 0.1366 0.4835 -0.12066 2022 6 6 59736 0.1388 0.4835 -0.11965 2022 6 7 59737 0.1409 0.4834 -0.11883 2022 6 8 59738 0.1430 0.4834 -0.11819 2022 6 9 59739 0.1451 0.4832 -0.11767 2022 6 10 59740 0.1473 0.4831 -0.11719 2022 6 11 59741 0.1494 0.4829 -0.11665 2022 6 12 59742 0.1515 0.4826 -0.11602 2022 6 13 59743 0.1536 0.4824 -0.11518 2022 6 14 59744 0.1557 0.4821 -0.11410 2022 6 15 59745 0.1578 0.4818 -0.11283 2022 6 16 59746 0.1598 0.4814 -0.11160 2022 6 17 59747 0.1619 0.4810 -0.11056 2022 6 18 59748 0.1640 0.4806 -0.10966 2022 6 19 59749 0.1660 0.4802 -0.10896 2022 6 20 59750 0.1681 0.4797 -0.10839 2022 6 21 59751 0.1701 0.4792 -0.10790 2022 6 22 59752 0.1721 0.4787 -0.10737 2022 6 23 59753 0.1741 0.4781 -0.10676 2022 6 24 59754 0.1761 0.4775 -0.10600 2022 6 25 59755 0.1781 0.4769 -0.10504 2022 6 26 59756 0.1801 0.4762 -0.10394 2022 6 27 59757 0.1821 0.4755 -0.10266 2022 6 28 59758 0.1840 0.4748 -0.10125 2022 6 29 59759 0.1859 0.4740 -0.09970 2022 6 30 59760 0.1879 0.4732 -0.09807 2022 7 1 59761 0.1897 0.4724 -0.09646 2022 7 2 59762 0.1916 0.4716 -0.09494 2022 7 3 59763 0.1935 0.4707 -0.09347 2022 7 4 59764 0.1953 0.4698 -0.09218 2022 7 5 59765 0.1972 0.4689 -0.09106 2022 7 6 59766 0.1990 0.4680 -0.09010 2022 7 7 59767 0.2008 0.4670 -0.08920 2022 7 8 59768 0.2026 0.4660 -0.08834 2022 7 9 59769 0.2043 0.4649 -0.08740 2022 7 10 59770 0.2060 0.4639 -0.08625 2022 7 11 59771 0.2078 0.4628 -0.08485 2022 7 12 59772 0.2095 0.4617 -0.08326 2022 7 13 59773 0.2111 0.4605 -0.08149 2022 7 14 59774 0.2128 0.4594 -0.07975 2022 7 15 59775 0.2144 0.4582 -0.07823 2022 7 16 59776 0.2160 0.4570 -0.07702 2022 7 17 59777 0.2176 0.4557 -0.07608 2022 7 18 59778 0.2191 0.4544 -0.07539 2022 7 19 59779 0.2207 0.4532 -0.07480 2022 7 20 59780 0.2222 0.4518 -0.07415 2022 7 21 59781 0.2236 0.4505 -0.07336 2022 7 22 59782 0.2251 0.4491 -0.07237 2022 7 23 59783 0.2265 0.4478 -0.07114 2022 7 24 59784 0.2279 0.4464 -0.06966 2022 7 25 59785 0.2293 0.4449 -0.06811 2022 7 26 59786 0.2307 0.4435 -0.06648 2022 7 27 59787 0.2320 0.4420 -0.06480 2022 7 28 59788 0.2333 0.4405 -0.06319 2022 7 29 59789 0.2345 0.4390 -0.06180 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) 59403 -113.20 0.74 -9.88 0.10 59404 -113.24 0.74 -10.08 0.10 59405 -113.24 0.74 -10.07 0.10 59406 -113.26 0.64 -9.90 0.07 59407 -113.34 0.64 -9.74 0.07 59408 -113.48 0.72 -9.70 0.03 59409 -113.57 0.67 -9.76 0.10 59410 -113.51 0.67 -9.81 0.10 59411 -113.44 0.67 -9.75 0.10 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59403 0.293 0.294 -0.116 0.101 59404 0.285 0.294 -0.103 0.101 59405 0.278 0.294 -0.091 0.101 59406 0.273 0.256 -0.082 0.069 59407 0.270 0.256 -0.076 0.069 59408 0.268 0.286 -0.074 0.029 59409 0.266 0.268 -0.075 0.099 59410 0.264 0.268 -0.080 0.099 59411 0.262 0.268 -0.087 0.099 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).