********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 26 August 2021 Vol. XXXIV No. 034 ______________________________________________________________________ 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 20 59446 0.24770 .00009 0.35005 .00009 -0.128361 0.000017 21 8 21 59447 0.24729 .00009 0.34831 .00009 -0.127237 0.000016 21 8 22 59448 0.24682 .00009 0.34650 .00009 -0.126323 0.000017 21 8 23 59449 0.24636 .00009 0.34449 .00009 -0.125587 0.000022 21 8 24 59450 0.24607 .00009 0.34228 .00010 -0.124967 0.000032 21 8 25 59451 0.24601 .00009 0.34016 .00009 -0.124459 0.000031 21 8 26 59452 0.24605 .00009 0.33816 .00009 -0.124047 0.000035 _______________________________________________________________________ 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 = 0.1292 + 0.1184 cos A + 0.0176 sin A - 0.0087 cos C - 0.0459 sin C y = 0.3564 + 0.0264 cos A - 0.1056 sin A - 0.0459 cos C + 0.0087 sin C UT1-UTC = -0.1565 + 0.00023 (MJD - 59460) - (UT2-UT1) where A = 2*pi*(MJD-59452)/365.25 and C = 2*pi*(MJD-59452)/435. TAI-UTC(MJD 59453) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59452)**0.80 S t = 0.00025 (MJD-59452)**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 27 59453 0.2461 0.3363 -0.12351 2021 8 28 59454 0.2460 0.3345 -0.12286 2021 8 29 59455 0.2459 0.3327 -0.12210 2021 8 30 59456 0.2457 0.3310 -0.12125 2021 8 31 59457 0.2455 0.3293 -0.12031 2021 9 1 59458 0.2452 0.3276 -0.11927 2021 9 2 59459 0.2449 0.3259 -0.11817 2021 9 3 59460 0.2445 0.3243 -0.11708 2021 9 4 59461 0.2441 0.3226 -0.11610 2021 9 5 59462 0.2436 0.3209 -0.11530 2021 9 6 59463 0.2431 0.3193 -0.11472 2021 9 7 59464 0.2426 0.3176 -0.11437 2021 9 8 59465 0.2421 0.3160 -0.11426 2021 9 9 59466 0.2415 0.3143 -0.11430 2021 9 10 59467 0.2409 0.3127 -0.11439 2021 9 11 59468 0.2403 0.3111 -0.11439 2021 9 12 59469 0.2397 0.3096 -0.11422 2021 9 13 59470 0.2390 0.3081 -0.11385 2021 9 14 59471 0.2382 0.3066 -0.11329 2021 9 15 59472 0.2374 0.3051 -0.11262 2021 9 16 59473 0.2366 0.3036 -0.11195 2021 9 17 59474 0.2357 0.3021 -0.11141 2021 9 18 59475 0.2348 0.3006 -0.11107 2021 9 19 59476 0.2339 0.2992 -0.11097 2021 9 20 59477 0.2329 0.2977 -0.11108 2021 9 21 59478 0.2320 0.2963 -0.11134 2021 9 22 59479 0.2310 0.2948 -0.11168 2021 9 23 59480 0.2299 0.2934 -0.11201 2021 9 24 59481 0.2289 0.2920 -0.11228 2021 9 25 59482 0.2278 0.2906 -0.11244 2021 9 26 59483 0.2266 0.2892 -0.11245 2021 9 27 59484 0.2255 0.2878 -0.11232 2021 9 28 59485 0.2243 0.2865 -0.11207 2021 9 29 59486 0.2231 0.2852 -0.11174 2021 9 30 59487 0.2219 0.2838 -0.11139 2021 10 1 59488 0.2206 0.2825 -0.11110 2021 10 2 59489 0.2193 0.2812 -0.11094 2021 10 3 59490 0.2180 0.2799 -0.11098 2021 10 4 59491 0.2167 0.2787 -0.11127 2021 10 5 59492 0.2153 0.2774 -0.11182 2021 10 6 59493 0.2140 0.2762 -0.11258 2021 10 7 59494 0.2126 0.2750 -0.11341 2021 10 8 59495 0.2111 0.2738 -0.11420 2021 10 9 59496 0.2097 0.2726 -0.11480 2021 10 10 59497 0.2082 0.2715 -0.11515 2021 10 11 59498 0.2067 0.2703 -0.11525 2021 10 12 59499 0.2052 0.2692 -0.11517 2021 10 13 59500 0.2037 0.2681 -0.11503 2021 10 14 59501 0.2021 0.2671 -0.11493 2021 10 15 59502 0.2005 0.2660 -0.11497 2021 10 16 59503 0.1989 0.2650 -0.11519 2021 10 17 59504 0.1973 0.2640 -0.11559 2021 10 18 59505 0.1957 0.2630 -0.11613 2021 10 19 59506 0.1940 0.2621 -0.11675 2021 10 20 59507 0.1924 0.2611 -0.11737 2021 10 21 59508 0.1907 0.2602 -0.11792 2021 10 22 59509 0.1890 0.2593 -0.11835 2021 10 23 59510 0.1872 0.2585 -0.11862 2021 10 24 59511 0.1855 0.2576 -0.11873 2021 10 25 59512 0.1837 0.2568 -0.11869 2021 10 26 59513 0.1819 0.2560 -0.11856 2021 10 27 59514 0.1802 0.2553 -0.11839 2021 10 28 59515 0.1783 0.2545 -0.11824 2021 10 29 59516 0.1765 0.2538 -0.11820 2021 10 30 59517 0.1747 0.2532 -0.11833 2021 10 31 59518 0.1728 0.2525 -0.11869 2021 11 1 59519 0.1710 0.2519 -0.11930 2021 11 2 59520 0.1691 0.2513 -0.12015 2021 11 3 59521 0.1672 0.2507 -0.12115 2021 11 4 59522 0.1653 0.2501 -0.12217 2021 11 5 59523 0.1634 0.2496 -0.12306 2021 11 6 59524 0.1615 0.2491 -0.12371 2021 11 7 59525 0.1595 0.2487 -0.12408 2021 11 8 59526 0.1576 0.2482 -0.12421 2021 11 9 59527 0.1557 0.2478 -0.12420 2021 11 10 59528 0.1537 0.2474 -0.12418 2021 11 11 59529 0.1517 0.2471 -0.12425 2021 11 12 59530 0.1498 0.2468 -0.12448 2021 11 13 59531 0.1478 0.2465 -0.12487 2021 11 14 59532 0.1458 0.2462 -0.12537 2021 11 15 59533 0.1438 0.2460 -0.12594 2021 11 16 59534 0.1418 0.2458 -0.12651 2021 11 17 59535 0.1398 0.2456 -0.12701 2021 11 18 59536 0.1378 0.2454 -0.12738 2021 11 19 59537 0.1358 0.2453 -0.12759 2021 11 20 59538 0.1338 0.2452 -0.12761 2021 11 21 59539 0.1317 0.2452 -0.12745 2021 11 22 59540 0.1297 0.2451 -0.12716 2021 11 23 59541 0.1277 0.2451 -0.12677 2021 11 24 59542 0.1257 0.2451 -0.12637 2021 11 25 59543 0.1236 0.2452 -0.12603 2021 11 26 59544 0.1216 0.2453 -0.12580 2021 11 27 59545 0.1196 0.2454 -0.12575 2021 11 28 59546 0.1176 0.2456 -0.12592 2021 11 29 59547 0.1156 0.2457 -0.12632 2021 11 30 59548 0.1135 0.2459 -0.12690 2021 12 1 59549 0.1115 0.2462 -0.12756 2021 12 2 59550 0.1095 0.2464 -0.12818 2021 12 3 59551 0.1075 0.2467 -0.12862 2021 12 4 59552 0.1055 0.2471 -0.12880 2021 12 5 59553 0.1035 0.2474 -0.12871 2021 12 6 59554 0.1015 0.2478 -0.12843 2021 12 7 59555 0.0995 0.2482 -0.12808 2021 12 8 59556 0.0976 0.2487 -0.12779 2021 12 9 59557 0.0956 0.2491 -0.12765 2021 12 10 59558 0.0936 0.2496 -0.12767 2021 12 11 59559 0.0917 0.2502 -0.12782 2021 12 12 59560 0.0897 0.2507 -0.12805 2021 12 13 59561 0.0878 0.2513 -0.12835 2021 12 14 59562 0.0859 0.2519 -0.12858 2021 12 15 59563 0.0839 0.2526 -0.12870 2021 12 16 59564 0.0820 0.2533 -0.12867 2021 12 17 59565 0.0801 0.2540 -0.12846 2021 12 18 59566 0.0783 0.2547 -0.12809 2021 12 19 59567 0.0764 0.2555 -0.12758 2021 12 20 59568 0.0745 0.2563 -0.12698 2021 12 21 59569 0.0727 0.2571 -0.12635 2021 12 22 59570 0.0709 0.2579 -0.12577 2021 12 23 59571 0.0691 0.2588 -0.12530 2021 12 24 59572 0.0673 0.2597 -0.12501 2021 12 25 59573 0.0655 0.2606 -0.12491 2021 12 26 59574 0.0637 0.2616 -0.12503 2021 12 27 59575 0.0620 0.2626 -0.12534 2021 12 28 59576 0.0602 0.2636 -0.12576 2021 12 29 59577 0.0585 0.2646 -0.12619 2021 12 30 59578 0.0568 0.2657 -0.12652 2021 12 31 59579 0.0552 0.2667 -0.12665 2022 1 1 59580 0.0535 0.2679 -0.12653 2022 1 2 59581 0.0519 0.2690 -0.12620 2022 1 3 59582 0.0503 0.2701 -0.12578 2022 1 4 59583 0.0487 0.2713 -0.12540 2022 1 5 59584 0.0471 0.2725 -0.12516 2022 1 6 59585 0.0455 0.2738 -0.12511 2022 1 7 59586 0.0440 0.2750 -0.12523 2022 1 8 59587 0.0425 0.2763 -0.12547 2022 1 9 59588 0.0410 0.2776 -0.12572 2022 1 10 59589 0.0395 0.2789 -0.12591 2022 1 11 59590 0.0381 0.2803 -0.12599 2022 1 12 59591 0.0367 0.2816 -0.12591 2022 1 13 59592 0.0353 0.2830 -0.12567 2022 1 14 59593 0.0339 0.2845 -0.12525 2022 1 15 59594 0.0326 0.2859 -0.12469 2022 1 16 59595 0.0313 0.2873 -0.12403 2022 1 17 59596 0.0300 0.2888 -0.12333 2022 1 18 59597 0.0287 0.2903 -0.12267 2022 1 19 59598 0.0275 0.2918 -0.12212 2022 1 20 59599 0.0263 0.2934 -0.12173 2022 1 21 59600 0.0251 0.2949 -0.12155 2022 1 22 59601 0.0240 0.2965 -0.12158 2022 1 23 59602 0.0228 0.2981 -0.12178 2022 1 24 59603 0.0217 0.2997 -0.12211 2022 1 25 59604 0.0207 0.3013 -0.12246 2022 1 26 59605 0.0196 0.3029 -0.12274 2022 1 27 59606 0.0186 0.3046 -0.12285 2022 1 28 59607 0.0176 0.3062 -0.12275 2022 1 29 59608 0.0167 0.3079 -0.12245 2022 1 30 59609 0.0158 0.3096 -0.12203 2022 1 31 59610 0.0149 0.3114 -0.12162 2022 2 1 59611 0.0140 0.3131 -0.12133 2022 2 2 59612 0.0132 0.3148 -0.12125 2022 2 3 59613 0.0124 0.3166 -0.12139 2022 2 4 59614 0.0117 0.3183 -0.12170 2022 2 5 59615 0.0109 0.3201 -0.12209 2022 2 6 59616 0.0102 0.3219 -0.12245 2022 2 7 59617 0.0096 0.3237 -0.12272 2022 2 8 59618 0.0089 0.3255 -0.12284 2022 2 9 59619 0.0083 0.3274 -0.12278 2022 2 10 59620 0.0078 0.3292 -0.12255 2022 2 11 59621 0.0072 0.3310 -0.12217 2022 2 12 59622 0.0067 0.3329 -0.12169 2022 2 13 59623 0.0063 0.3348 -0.12116 2022 2 14 59624 0.0058 0.3366 -0.12066 2022 2 15 59625 0.0054 0.3385 -0.12027 2022 2 16 59626 0.0050 0.3404 -0.12004 2022 2 17 59627 0.0047 0.3423 -0.12004 2022 2 18 59628 0.0044 0.3442 -0.12027 2022 2 19 59629 0.0042 0.3461 -0.12070 2022 2 20 59630 0.0039 0.3480 -0.12129 2022 2 21 59631 0.0037 0.3499 -0.12191 2022 2 22 59632 0.0036 0.3518 -0.12248 2022 2 23 59633 0.0034 0.3537 -0.12290 2022 2 24 59634 0.0033 0.3556 -0.12311 2022 2 25 59635 0.0033 0.3576 -0.12313 2022 2 26 59636 0.0033 0.3595 -0.12302 2022 2 27 59637 0.0033 0.3614 -0.12287 2022 2 28 59638 0.0033 0.3633 -0.12281 2022 3 1 59639 0.0034 0.3653 -0.12294 2022 3 2 59640 0.0035 0.3672 -0.12328 2022 3 3 59641 0.0037 0.3691 -0.12380 2022 3 4 59642 0.0038 0.3710 -0.12442 2022 3 5 59643 0.0041 0.3730 -0.12502 2022 3 6 59644 0.0043 0.3749 -0.12549 2022 3 7 59645 0.0046 0.3768 -0.12577 2022 3 8 59646 0.0049 0.3787 -0.12582 2022 3 9 59647 0.0053 0.3806 -0.12564 2022 3 10 59648 0.0057 0.3825 -0.12526 2022 3 11 59649 0.0061 0.3844 -0.12473 2022 3 12 59650 0.0066 0.3863 -0.12413 2022 3 13 59651 0.0071 0.3882 -0.12354 2022 3 14 59652 0.0076 0.3901 -0.12304 2022 3 15 59653 0.0081 0.3920 -0.12270 2022 3 16 59654 0.0087 0.3938 -0.12259 2022 3 17 59655 0.0094 0.3957 -0.12273 2022 3 18 59656 0.0100 0.3975 -0.12313 2022 3 19 59657 0.0107 0.3994 -0.12374 2022 3 20 59658 0.0115 0.4012 -0.12447 2022 3 21 59659 0.0122 0.4030 -0.12520 2022 3 22 59660 0.0130 0.4049 -0.12585 2022 3 23 59661 0.0138 0.4067 -0.12634 2022 3 24 59662 0.0147 0.4084 -0.12667 2022 3 25 59663 0.0156 0.4102 -0.12686 2022 3 26 59664 0.0165 0.4120 -0.12701 2022 3 27 59665 0.0175 0.4137 -0.12720 2022 3 28 59666 0.0184 0.4155 -0.12754 2022 3 29 59667 0.0194 0.4172 -0.12807 2022 3 30 59668 0.0205 0.4189 -0.12879 2022 3 31 59669 0.0216 0.4206 -0.12965 2022 4 1 59670 0.0227 0.4223 -0.13057 2022 4 2 59671 0.0238 0.4240 -0.13145 2022 4 3 59672 0.0250 0.4256 -0.13221 2022 4 4 59673 0.0262 0.4273 -0.13279 2022 4 5 59674 0.0274 0.4289 -0.13312 2022 4 6 59675 0.0286 0.4305 -0.13319 2022 4 7 59676 0.0299 0.4320 -0.13302 2022 4 8 59677 0.0312 0.4336 -0.13274 2022 4 9 59678 0.0326 0.4352 -0.13245 2022 4 10 59679 0.0339 0.4367 -0.13209 2022 4 11 59680 0.0353 0.4382 -0.13176 2022 4 12 59681 0.0367 0.4397 -0.13164 2022 4 13 59682 0.0382 0.4411 -0.13176 2022 4 14 59683 0.0397 0.4426 -0.13212 2022 4 15 59684 0.0412 0.4440 -0.13271 2022 4 16 59685 0.0427 0.4454 -0.13333 2022 4 17 59686 0.0442 0.4468 -0.13394 2022 4 18 59687 0.0458 0.4481 -0.13440 2022 4 19 59688 0.0474 0.4495 -0.13462 2022 4 20 59689 0.0490 0.4508 -0.13459 2022 4 21 59690 0.0506 0.4521 -0.13434 2022 4 22 59691 0.0523 0.4533 -0.13396 2022 4 23 59692 0.0540 0.4546 -0.13370 2022 4 24 59693 0.0557 0.4558 -0.13355 2022 4 25 59694 0.0574 0.4570 -0.13360 2022 4 26 59695 0.0591 0.4581 -0.13382 2022 4 27 59696 0.0609 0.4593 -0.13413 2022 4 28 59697 0.0627 0.4604 -0.13449 2022 4 29 59698 0.0645 0.4615 -0.13487 2022 4 30 59699 0.0663 0.4625 -0.13518 2022 5 1 59700 0.0682 0.4636 -0.13531 2022 5 2 59701 0.0700 0.4646 -0.13522 2022 5 3 59702 0.0719 0.4656 -0.13491 2022 5 4 59703 0.0738 0.4665 -0.13442 2022 5 5 59704 0.0757 0.4674 -0.13381 2022 5 6 59705 0.0776 0.4683 -0.13315 2022 5 7 59706 0.0796 0.4692 -0.13249 2022 5 8 59707 0.0815 0.4700 -0.13194 2022 5 9 59708 0.0835 0.4709 -0.13157 2022 5 10 59709 0.0855 0.4716 -0.13137 2022 5 11 59710 0.0875 0.4724 -0.13135 2022 5 12 59711 0.0895 0.4731 -0.13154 2022 5 13 59712 0.0915 0.4738 -0.13192 2022 5 14 59713 0.0935 0.4745 -0.13238 2022 5 15 59714 0.0956 0.4751 -0.13277 2022 5 16 59715 0.0976 0.4757 -0.13304 2022 5 17 59716 0.0997 0.4763 -0.13298 2022 5 18 59717 0.1017 0.4768 -0.13262 2022 5 19 59718 0.1038 0.4773 -0.13205 2022 5 20 59719 0.1059 0.4778 -0.13139 2022 5 21 59720 0.1080 0.4783 -0.13081 2022 5 22 59721 0.1101 0.4787 -0.13033 2022 5 23 59722 0.1122 0.4791 -0.13006 2022 5 24 59723 0.1143 0.4795 -0.12996 2022 5 25 59724 0.1164 0.4798 -0.12995 2022 5 26 59725 0.1186 0.4801 -0.12993 2022 5 27 59726 0.1207 0.4803 -0.12983 2022 5 28 59727 0.1228 0.4806 -0.12966 2022 5 29 59728 0.1250 0.4808 -0.12931 2022 5 30 59729 0.1271 0.4809 -0.12879 2022 5 31 59730 0.1292 0.4811 -0.12810 2022 6 1 59731 0.1314 0.4812 -0.12726 2022 6 2 59732 0.1335 0.4813 -0.12633 2022 6 3 59733 0.1356 0.4813 -0.12530 2022 6 4 59734 0.1378 0.4813 -0.12429 2022 6 5 59735 0.1399 0.4813 -0.12338 2022 6 6 59736 0.1421 0.4812 -0.12265 2022 6 7 59737 0.1442 0.4812 -0.12210 2022 6 8 59738 0.1463 0.4810 -0.12170 2022 6 9 59739 0.1484 0.4809 -0.12144 2022 6 10 59740 0.1506 0.4807 -0.12129 2022 6 11 59741 0.1527 0.4805 -0.12108 2022 6 12 59742 0.1548 0.4803 -0.12085 2022 6 13 59743 0.1569 0.4800 -0.12037 2022 6 14 59744 0.1590 0.4797 -0.11960 2022 6 15 59745 0.1611 0.4793 -0.11858 2022 6 16 59746 0.1632 0.4790 -0.11738 2022 6 17 59747 0.1652 0.4786 -0.11619 2022 6 18 59748 0.1673 0.4781 -0.11519 2022 6 19 59749 0.1694 0.4777 -0.11439 2022 6 20 59750 0.1714 0.4772 -0.11384 2022 6 21 59751 0.1734 0.4767 -0.11337 2022 6 22 59752 0.1755 0.4761 -0.11291 2022 6 23 59753 0.1775 0.4755 -0.11239 2022 6 24 59754 0.1795 0.4749 -0.11171 2022 6 25 59755 0.1815 0.4743 -0.11087 2022 6 26 59756 0.1834 0.4736 -0.10983 2022 6 27 59757 0.1854 0.4729 -0.10862 2022 6 28 59758 0.1873 0.4722 -0.10730 2022 6 29 59759 0.1893 0.4714 -0.10581 2022 6 30 59760 0.1912 0.4706 -0.10421 2022 7 1 59761 0.1931 0.4698 -0.10264 2022 7 2 59762 0.1950 0.4689 -0.10122 2022 7 3 59763 0.1968 0.4681 -0.10001 2022 7 4 59764 0.1987 0.4672 -0.09901 2022 7 5 59765 0.2005 0.4662 -0.09817 2022 7 6 59766 0.2023 0.4653 -0.09748 2022 7 7 59767 0.2041 0.4643 -0.09688 2022 7 8 59768 0.2059 0.4633 -0.09625 2022 7 9 59769 0.2077 0.4622 -0.09555 2022 7 10 59770 0.2094 0.4612 -0.09473 2022 7 11 59771 0.2111 0.4601 -0.09374 2022 7 12 59772 0.2128 0.4589 -0.09255 2022 7 13 59773 0.2145 0.4578 -0.09126 2022 7 14 59774 0.2161 0.4566 -0.09006 2022 7 15 59775 0.2177 0.4554 -0.08904 2022 7 16 59776 0.2193 0.4542 -0.08824 2022 7 17 59777 0.2209 0.4530 -0.08756 2022 7 18 59778 0.2225 0.4517 -0.08698 2022 7 19 59779 0.2240 0.4504 -0.08639 2022 7 20 59780 0.2255 0.4491 -0.08573 2022 7 21 59781 0.2270 0.4478 -0.08494 2022 7 22 59782 0.2284 0.4464 -0.08388 2022 7 23 59783 0.2298 0.4450 -0.08257 2022 7 24 59784 0.2312 0.4436 -0.08100 2022 7 25 59785 0.2326 0.4422 -0.07930 2022 7 26 59786 0.2340 0.4407 -0.07745 2022 7 27 59787 0.2353 0.4393 -0.07554 2022 7 28 59788 0.2366 0.4378 -0.07370 2022 7 29 59789 0.2378 0.4363 -0.07193 2022 7 30 59790 0.2391 0.4348 -0.07027 2022 7 31 59791 0.2403 0.4332 -0.06887 2022 8 1 59792 0.2414 0.4317 -0.06769 2022 8 2 59793 0.2426 0.4301 -0.06669 2022 8 3 59794 0.2437 0.4285 -0.06581 2022 8 4 59795 0.2448 0.4269 -0.06494 2022 8 5 59796 0.2458 0.4252 -0.06396 2022 8 6 59797 0.2469 0.4236 -0.06280 2022 8 7 59798 0.2478 0.4219 -0.06151 2022 8 8 59799 0.2488 0.4203 -0.06003 2022 8 9 59800 0.2497 0.4186 -0.05845 2022 8 10 59801 0.2506 0.4169 -0.05686 2022 8 11 59802 0.2515 0.4152 -0.05552 2022 8 12 59803 0.2523 0.4134 -0.05457 2022 8 13 59804 0.2531 0.4117 -0.05388 2022 8 14 59805 0.2539 0.4099 -0.05342 2022 8 15 59806 0.2546 0.4081 -0.05305 2022 8 16 59807 0.2553 0.4064 -0.05266 2022 8 17 59808 0.2560 0.4046 -0.05211 2022 8 18 59809 0.2566 0.4028 -0.05139 2022 8 19 59810 0.2572 0.4010 -0.05046 2022 8 20 59811 0.2578 0.3991 -0.04932 2022 8 21 59812 0.2583 0.3973 -0.04808 2022 8 22 59813 0.2588 0.3955 -0.04674 2022 8 23 59814 0.2593 0.3936 -0.04539 2022 8 24 59815 0.2597 0.3918 -0.04404 2022 8 25 59816 0.2601 0.3899 -0.04275 2022 8 26 59817 0.2604 0.3881 -0.04160 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) 59432 -117.06 0.80 -10.00 0.15 59433 -116.96 0.64 -10.09 0.09 59434 -116.80 0.64 -9.96 0.09 59435 -116.70 0.64 -9.75 0.07 59436 -116.72 0.64 -9.63 0.07 59437 -116.82 0.55 -9.67 0.14 59438 -116.94 0.55 -9.80 0.14 59439 -117.09 0.55 -9.86 0.14 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59432 0.328 0.320 -0.131 0.147 59433 0.320 0.254 -0.126 0.093 59434 0.307 0.254 -0.122 0.093 59435 0.290 0.256 -0.120 0.067 59436 0.270 0.256 -0.121 0.067 59437 0.247 0.219 -0.126 0.143 59438 0.220 0.219 -0.134 0.143 59439 0.193 0.219 -0.145 0.143 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).