********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 6 January 2022 Vol. XXXV No. 001 ______________________________________________________________________ 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 June 2022 * * * * 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 12 31 59579 0.05624 .00009 0.27587 .00009 -0.110429 0.000019 22 1 1 59580 0.05466 .00009 0.27691 .00009 -0.110498 0.000021 22 1 2 59581 0.05347 .00009 0.27792 .00009 -0.110356 0.000022 22 1 3 59582 0.05303 .00009 0.27909 .00009 -0.110123 0.000022 22 1 4 59583 0.05326 .00009 0.28074 .00009 -0.109956 0.000021 22 1 5 59584 0.05341 .00009 0.28288 .00009 -0.109867 0.000020 22 1 6 59585 0.05294 .00009 0.28513 .00009 -0.110056 0.000055 IERS Final Values MJD x y UT1-UTC " " s 21 11 2 59520 0.1654 0.2520 -0.10471 21 11 3 59521 0.1643 0.2512 -0.10553 21 11 4 59522 0.1634 0.2504 -0.10636 21 11 5 59523 0.1615 0.2498 -0.10704 21 11 6 59524 0.1590 0.2493 -0.10742 21 11 7 59525 0.1564 0.2488 -0.10751 21 11 8 59526 0.1544 0.2481 -0.10738 21 11 9 59527 0.1525 0.2476 -0.10717 21 11 10 59528 0.1508 0.2471 -0.10696 21 11 11 59529 0.1495 0.2468 -0.10688 21 11 12 59530 0.1485 0.2466 -0.10697 21 11 13 59531 0.1477 0.2465 -0.10725 21 11 14 59532 0.1470 0.2465 -0.10765 21 11 15 59533 0.1458 0.2463 -0.10800 21 11 16 59534 0.1436 0.2460 -0.10828 21 11 17 59535 0.1414 0.2453 -0.10848 21 11 18 59536 0.1398 0.2451 -0.10856 21 11 19 59537 0.1379 0.2452 -0.10847 21 11 20 59538 0.1355 0.2453 -0.10819 21 11 21 59539 0.1334 0.2459 -0.10777 21 11 22 59540 0.1316 0.2469 -0.10727 21 11 23 59541 0.1296 0.2473 -0.10673 21 11 24 59542 0.1277 0.2472 -0.10620 21 11 25 59543 0.1265 0.2477 -0.10573 21 11 26 59544 0.1253 0.2483 -0.10539 21 11 27 59545 0.1239 0.2491 -0.10530 21 11 28 59546 0.1225 0.2502 -0.10545 21 11 29 59547 0.1209 0.2508 -0.10577 21 11 30 59548 0.1195 0.2514 -0.10624 21 12 1 59549 0.1179 0.2521 -0.10682 _______________________________________________________________________ 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 = 0.1361 - 0.0496 cos A - 0.0755 sin A - 0.0322 cos C - 0.0063 sin C y = 0.3578 - 0.0699 cos A + 0.0418 sin A - 0.0063 cos C + 0.0322 sin C UT1-UTC = -0.1204 + 0.00020 (MJD - 59593) - (UT2-UT1) where A = 2*pi*(MJD-59585)/365.25 and C = 2*pi*(MJD-59585)/435. TAI-UTC(MJD 59586) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59585)**0.80 S t = 0.00025 (MJD-59585)**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) 2022 1 7 59586 0.0520 0.2872 -0.11038 2022 1 8 59587 0.0508 0.2890 -0.11081 2022 1 9 59588 0.0495 0.2904 -0.11123 2022 1 10 59589 0.0483 0.2917 -0.11158 2022 1 11 59590 0.0471 0.2929 -0.11180 2022 1 12 59591 0.0462 0.2940 -0.11186 2022 1 13 59592 0.0453 0.2952 -0.11173 2022 1 14 59593 0.0443 0.2965 -0.11144 2022 1 15 59594 0.0433 0.2979 -0.11100 2022 1 16 59595 0.0423 0.2992 -0.11048 2022 1 17 59596 0.0413 0.3005 -0.10994 2022 1 18 59597 0.0404 0.3019 -0.10947 2022 1 19 59598 0.0395 0.3033 -0.10912 2022 1 20 59599 0.0385 0.3048 -0.10895 2022 1 21 59600 0.0374 0.3063 -0.10899 2022 1 22 59601 0.0363 0.3078 -0.10925 2022 1 23 59602 0.0352 0.3093 -0.10969 2022 1 24 59603 0.0341 0.3107 -0.11027 2022 1 25 59604 0.0330 0.3121 -0.11088 2022 1 26 59605 0.0320 0.3136 -0.11142 2022 1 27 59606 0.0311 0.3150 -0.11180 2022 1 28 59607 0.0302 0.3165 -0.11197 2022 1 29 59608 0.0294 0.3181 -0.11193 2022 1 30 59609 0.0286 0.3197 -0.11176 2022 1 31 59610 0.0279 0.3213 -0.11159 2022 2 1 59611 0.0271 0.3229 -0.11154 2022 2 2 59612 0.0264 0.3246 -0.11170 2022 2 3 59613 0.0257 0.3262 -0.11206 2022 2 4 59614 0.0250 0.3279 -0.11256 2022 2 5 59615 0.0244 0.3296 -0.11313 2022 2 6 59616 0.0238 0.3313 -0.11365 2022 2 7 59617 0.0233 0.3330 -0.11406 2022 2 8 59618 0.0228 0.3347 -0.11431 2022 2 9 59619 0.0223 0.3364 -0.11437 2022 2 10 59620 0.0219 0.3381 -0.11424 2022 2 11 59621 0.0215 0.3398 -0.11395 2022 2 12 59622 0.0211 0.3415 -0.11353 2022 2 13 59623 0.0208 0.3432 -0.11305 2022 2 14 59624 0.0205 0.3450 -0.11260 2022 2 15 59625 0.0203 0.3468 -0.11224 2022 2 16 59626 0.0200 0.3485 -0.11205 2022 2 17 59627 0.0198 0.3503 -0.11206 2022 2 18 59628 0.0197 0.3521 -0.11231 2022 2 19 59629 0.0195 0.3538 -0.11275 2022 2 20 59630 0.0194 0.3556 -0.11333 2022 2 21 59631 0.0194 0.3574 -0.11394 2022 2 22 59632 0.0193 0.3592 -0.11448 2022 2 23 59633 0.0193 0.3609 -0.11487 2022 2 24 59634 0.0193 0.3627 -0.11503 2022 2 25 59635 0.0194 0.3645 -0.11499 2022 2 26 59636 0.0195 0.3663 -0.11481 2022 2 27 59637 0.0196 0.3681 -0.11459 2022 2 28 59638 0.0198 0.3699 -0.11446 2022 3 1 59639 0.0200 0.3717 -0.11451 2022 3 2 59640 0.0202 0.3735 -0.11479 2022 3 3 59641 0.0204 0.3753 -0.11529 2022 3 4 59642 0.0207 0.3771 -0.11591 2022 3 5 59643 0.0210 0.3788 -0.11657 2022 3 6 59644 0.0214 0.3806 -0.11715 2022 3 7 59645 0.0217 0.3824 -0.11758 2022 3 8 59646 0.0221 0.3842 -0.11782 2022 3 9 59647 0.0226 0.3859 -0.11787 2022 3 10 59648 0.0231 0.3877 -0.11775 2022 3 11 59649 0.0236 0.3895 -0.11750 2022 3 12 59650 0.0241 0.3912 -0.11717 2022 3 13 59651 0.0247 0.3930 -0.11683 2022 3 14 59652 0.0253 0.3947 -0.11656 2022 3 15 59653 0.0259 0.3964 -0.11644 2022 3 16 59654 0.0266 0.3982 -0.11651 2022 3 17 59655 0.0273 0.3999 -0.11683 2022 3 18 59656 0.0280 0.4016 -0.11737 2022 3 19 59657 0.0288 0.4033 -0.11808 2022 3 20 59658 0.0296 0.4050 -0.11887 2022 3 21 59659 0.0304 0.4067 -0.11960 2022 3 22 59660 0.0312 0.4083 -0.12018 2022 3 23 59661 0.0321 0.4100 -0.12053 2022 3 24 59662 0.0330 0.4116 -0.12065 2022 3 25 59663 0.0340 0.4133 -0.12059 2022 3 26 59664 0.0349 0.4149 -0.12045 2022 3 27 59665 0.0359 0.4165 -0.12036 2022 3 28 59666 0.0370 0.4181 -0.12042 2022 3 29 59667 0.0380 0.4197 -0.12068 2022 3 30 59668 0.0391 0.4212 -0.12116 2022 3 31 59669 0.0402 0.4228 -0.12181 2022 4 1 59670 0.0414 0.4243 -0.12253 2022 4 2 59671 0.0426 0.4258 -0.12322 2022 4 3 59672 0.0438 0.4273 -0.12380 2022 4 4 59673 0.0450 0.4288 -0.12421 2022 4 5 59674 0.0462 0.4303 -0.12442 2022 4 6 59675 0.0475 0.4317 -0.12445 2022 4 7 59676 0.0488 0.4332 -0.12433 2022 4 8 59677 0.0502 0.4346 -0.12411 2022 4 9 59678 0.0515 0.4360 -0.12385 2022 4 10 59679 0.0529 0.4373 -0.12364 2022 4 11 59680 0.0543 0.4387 -0.12354 2022 4 12 59681 0.0557 0.4400 -0.12363 2022 4 13 59682 0.0572 0.4413 -0.12394 2022 4 14 59683 0.0587 0.4426 -0.12450 2022 4 15 59684 0.0602 0.4439 -0.12526 2022 4 16 59685 0.0617 0.4451 -0.12615 2022 4 17 59686 0.0633 0.4464 -0.12704 2022 4 18 59687 0.0648 0.4476 -0.12779 2022 4 19 59688 0.0664 0.4488 -0.12831 2022 4 20 59689 0.0680 0.4499 -0.12855 2022 4 21 59690 0.0697 0.4510 -0.12857 2022 4 22 59691 0.0713 0.4521 -0.12847 2022 4 23 59692 0.0730 0.4532 -0.12835 2022 4 24 59693 0.0747 0.4543 -0.12834 2022 4 25 59694 0.0764 0.4553 -0.12851 2022 4 26 59695 0.0781 0.4563 -0.12886 2022 4 27 59696 0.0799 0.4573 -0.12937 2022 4 28 59697 0.0817 0.4583 -0.12996 2022 4 29 59698 0.0834 0.4592 -0.13054 2022 4 30 59699 0.0852 0.4601 -0.13102 2022 5 1 59700 0.0871 0.4610 -0.13134 2022 5 2 59701 0.0889 0.4619 -0.13145 2022 5 3 59702 0.0907 0.4627 -0.13136 2022 5 4 59703 0.0926 0.4635 -0.13106 2022 5 5 59704 0.0945 0.4643 -0.13063 2022 5 6 59705 0.0964 0.4650 -0.13012 2022 5 7 59706 0.0983 0.4657 -0.12961 2022 5 8 59707 0.1002 0.4664 -0.12916 2022 5 9 59708 0.1021 0.4671 -0.12885 2022 5 10 59709 0.1041 0.4677 -0.12872 2022 5 11 59710 0.1060 0.4683 -0.12880 2022 5 12 59711 0.1080 0.4689 -0.12909 2022 5 13 59712 0.1100 0.4694 -0.12954 2022 5 14 59713 0.1120 0.4699 -0.13004 2022 5 15 59714 0.1139 0.4704 -0.13046 2022 5 16 59715 0.1159 0.4709 -0.13069 2022 5 17 59716 0.1180 0.4713 -0.13064 2022 5 18 59717 0.1200 0.4717 -0.13032 2022 5 19 59718 0.1220 0.4720 -0.12983 2022 5 20 59719 0.1240 0.4724 -0.12928 2022 5 21 59720 0.1261 0.4727 -0.12880 2022 5 22 59721 0.1281 0.4729 -0.12848 2022 5 23 59722 0.1301 0.4732 -0.12834 2022 5 24 59723 0.1322 0.4734 -0.12835 2022 5 25 59724 0.1342 0.4736 -0.12844 2022 5 26 59725 0.1363 0.4737 -0.12853 2022 5 27 59726 0.1384 0.4738 -0.12853 2022 5 28 59727 0.1404 0.4739 -0.12837 2022 5 29 59728 0.1425 0.4740 -0.12802 2022 5 30 59729 0.1445 0.4740 -0.12746 2022 5 31 59730 0.1466 0.4740 -0.12670 2022 6 1 59731 0.1487 0.4739 -0.12578 2022 6 2 59732 0.1507 0.4739 -0.12475 2022 6 3 59733 0.1528 0.4738 -0.12370 2022 6 4 59734 0.1548 0.4736 -0.12270 2022 6 5 59735 0.1569 0.4735 -0.12180 2022 6 6 59736 0.1589 0.4733 -0.12107 2022 6 7 59737 0.1610 0.4731 -0.12052 2022 6 8 59738 0.1630 0.4728 -0.12018 2022 6 9 59739 0.1651 0.4725 -0.11999 2022 6 10 59740 0.1671 0.4722 -0.11991 2022 6 11 59741 0.1691 0.4718 -0.11982 2022 6 12 59742 0.1711 0.4715 -0.11959 2022 6 13 59743 0.1731 0.4710 -0.11914 2022 6 14 59744 0.1751 0.4706 -0.11841 2022 6 15 59745 0.1771 0.4701 -0.11747 2022 6 16 59746 0.1791 0.4696 -0.11643 2022 6 17 59747 0.1811 0.4691 -0.11543 2022 6 18 59748 0.1831 0.4685 -0.11459 2022 6 19 59749 0.1850 0.4679 -0.11394 2022 6 20 59750 0.1870 0.4673 -0.11347 2022 6 21 59751 0.1889 0.4667 -0.11310 2022 6 22 59752 0.1908 0.4660 -0.11273 2022 6 23 59753 0.1927 0.4653 -0.11228 2022 6 24 59754 0.1946 0.4645 -0.11168 2022 6 25 59755 0.1965 0.4637 -0.11090 2022 6 26 59756 0.1984 0.4629 -0.10990 2022 6 27 59757 0.2002 0.4621 -0.10871 2022 6 28 59758 0.2020 0.4613 -0.10735 2022 6 29 59759 0.2039 0.4604 -0.10588 2022 6 30 59760 0.2057 0.4595 -0.10436 2022 7 1 59761 0.2075 0.4585 -0.10288 2022 7 2 59762 0.2092 0.4576 -0.10148 2022 7 3 59763 0.2110 0.4566 -0.10024 2022 7 4 59764 0.2127 0.4555 -0.09917 2022 7 5 59765 0.2144 0.4545 -0.09827 2022 7 6 59766 0.2161 0.4534 -0.09753 2022 7 7 59767 0.2178 0.4523 -0.09688 2022 7 8 59768 0.2195 0.4512 -0.09625 2022 7 9 59769 0.2211 0.4500 -0.09553 2022 7 10 59770 0.2227 0.4488 -0.09462 2022 7 11 59771 0.2243 0.4476 -0.09346 2022 7 12 59772 0.2259 0.4464 -0.09206 2022 7 13 59773 0.2274 0.4452 -0.09054 2022 7 14 59774 0.2289 0.4439 -0.08902 2022 7 15 59775 0.2304 0.4426 -0.08768 2022 7 16 59776 0.2319 0.4413 -0.08660 2022 7 17 59777 0.2334 0.4399 -0.08581 2022 7 18 59778 0.2348 0.4385 -0.08525 2022 7 19 59779 0.2362 0.4371 -0.08481 2022 7 20 59780 0.2376 0.4357 -0.08437 2022 7 21 59781 0.2389 0.4343 -0.08385 2022 7 22 59782 0.2402 0.4328 -0.08317 2022 7 23 59783 0.2415 0.4314 -0.08230 2022 7 24 59784 0.2428 0.4299 -0.08124 2022 7 25 59785 0.2441 0.4283 -0.07999 2022 7 26 59786 0.2453 0.4268 -0.07859 2022 7 27 59787 0.2465 0.4253 -0.07711 2022 7 28 59788 0.2476 0.4237 -0.07561 2022 7 29 59789 0.2488 0.4221 -0.07417 2022 7 30 59790 0.2499 0.4205 -0.07285 2022 7 31 59791 0.2509 0.4188 -0.07170 2022 8 1 59792 0.2520 0.4172 -0.07073 2022 8 2 59793 0.2530 0.4155 -0.06993 2022 8 3 59794 0.2540 0.4139 -0.06924 2022 8 4 59795 0.2549 0.4122 -0.06861 2022 8 5 59796 0.2559 0.4105 -0.06795 2022 8 6 59797 0.2568 0.4087 -0.06719 2022 8 7 59798 0.2576 0.4070 -0.06629 2022 8 8 59799 0.2584 0.4053 -0.06525 2022 8 9 59800 0.2592 0.4035 -0.06412 2022 8 10 59801 0.2600 0.4017 -0.06299 2022 8 11 59802 0.2607 0.3999 -0.06200 2022 8 12 59803 0.2615 0.3981 -0.06124 2022 8 13 59804 0.2621 0.3963 -0.06075 2022 8 14 59805 0.2628 0.3945 -0.06051 2022 8 15 59806 0.2634 0.3927 -0.06043 2022 8 16 59807 0.2639 0.3908 -0.06036 2022 8 17 59808 0.2645 0.3890 -0.06018 2022 8 18 59809 0.2650 0.3871 -0.05985 2022 8 19 59810 0.2654 0.3852 -0.05928 2022 8 20 59811 0.2659 0.3834 -0.05854 2022 8 21 59812 0.2663 0.3815 -0.05762 2022 8 22 59813 0.2667 0.3796 -0.05654 2022 8 23 59814 0.2670 0.3777 -0.05546 2022 8 24 59815 0.2673 0.3758 -0.05441 2022 8 25 59816 0.2676 0.3739 -0.05347 2022 8 26 59817 0.2678 0.3720 -0.05274 2022 8 27 59818 0.2680 0.3701 -0.05222 2022 8 28 59819 0.2682 0.3681 -0.05188 2022 8 29 59820 0.2683 0.3662 -0.05172 2022 8 30 59821 0.2684 0.3643 -0.05169 2022 8 31 59822 0.2685 0.3624 -0.05171 2022 9 1 59823 0.2685 0.3604 -0.05173 2022 9 2 59824 0.2685 0.3585 -0.05170 2022 9 3 59825 0.2684 0.3566 -0.05154 2022 9 4 59826 0.2684 0.3546 -0.05119 2022 9 5 59827 0.2682 0.3527 -0.05066 2022 9 6 59828 0.2681 0.3508 -0.05005 2022 9 7 59829 0.2679 0.3489 -0.04953 2022 9 8 59830 0.2677 0.3469 -0.04919 2022 9 9 59831 0.2675 0.3450 -0.04913 2022 9 10 59832 0.2672 0.3431 -0.04948 2022 9 11 59833 0.2669 0.3412 -0.04995 2022 9 12 59834 0.2665 0.3393 -0.05054 2022 9 13 59835 0.2661 0.3374 -0.05103 2022 9 14 59836 0.2657 0.3355 -0.05139 2022 9 15 59837 0.2653 0.3336 -0.05152 2022 9 16 59838 0.2648 0.3317 -0.05136 2022 9 17 59839 0.2643 0.3298 -0.05095 2022 9 18 59840 0.2637 0.3279 -0.05032 2022 9 19 59841 0.2631 0.3261 -0.04967 2022 9 20 59842 0.2625 0.3242 -0.04891 2022 9 21 59843 0.2618 0.3224 -0.04816 2022 9 22 59844 0.2612 0.3205 -0.04755 2022 9 23 59845 0.2604 0.3187 -0.04716 2022 9 24 59846 0.2597 0.3169 -0.04694 2022 9 25 59847 0.2589 0.3151 -0.04688 2022 9 26 59848 0.2581 0.3133 -0.04697 2022 9 27 59849 0.2573 0.3115 -0.04714 2022 9 28 59850 0.2564 0.3097 -0.04735 2022 9 29 59851 0.2555 0.3080 -0.04753 2022 9 30 59852 0.2545 0.3063 -0.04757 2022 10 1 59853 0.2536 0.3045 -0.04740 2022 10 2 59854 0.2526 0.3028 -0.04709 2022 10 3 59855 0.2516 0.3011 -0.04672 2022 10 4 59856 0.2505 0.2994 -0.04639 2022 10 5 59857 0.2494 0.2978 -0.04608 2022 10 6 59858 0.2483 0.2961 -0.04599 2022 10 7 59859 0.2471 0.2945 -0.04623 2022 10 8 59860 0.2460 0.2929 -0.04679 2022 10 9 59861 0.2448 0.2913 -0.04746 2022 10 10 59862 0.2435 0.2897 -0.04815 2022 10 11 59863 0.2423 0.2881 -0.04878 2022 10 12 59864 0.2410 0.2866 -0.04917 2022 10 13 59865 0.2397 0.2851 -0.04933 2022 10 14 59866 0.2383 0.2836 -0.04924 2022 10 15 59867 0.2370 0.2821 -0.04895 2022 10 16 59868 0.2356 0.2806 -0.04849 2022 10 17 59869 0.2342 0.2792 -0.04798 2022 10 18 59870 0.2327 0.2777 -0.04744 2022 10 19 59871 0.2313 0.2763 -0.04708 2022 10 20 59872 0.2298 0.2750 -0.04686 2022 10 21 59873 0.2283 0.2736 -0.04684 2022 10 22 59874 0.2267 0.2723 -0.04708 2022 10 23 59875 0.2252 0.2710 -0.04750 2022 10 24 59876 0.2236 0.2697 -0.04811 2022 10 25 59877 0.2220 0.2684 -0.04870 2022 10 26 59878 0.2204 0.2672 -0.04912 2022 10 27 59879 0.2187 0.2660 -0.04932 2022 10 28 59880 0.2171 0.2648 -0.04927 2022 10 29 59881 0.2154 0.2637 -0.04895 2022 10 30 59882 0.2137 0.2625 -0.04844 2022 10 31 59883 0.2120 0.2614 -0.04786 2022 11 1 59884 0.2102 0.2603 -0.04737 2022 11 2 59885 0.2084 0.2593 -0.04710 2022 11 3 59886 0.2067 0.2583 -0.04701 2022 11 4 59887 0.2049 0.2573 -0.04719 2022 11 5 59888 0.2031 0.2563 -0.04752 2022 11 6 59889 0.2012 0.2554 -0.04790 2022 11 7 59890 0.1994 0.2544 -0.04822 2022 11 8 59891 0.1975 0.2536 -0.04838 2022 11 9 59892 0.1957 0.2527 -0.04831 2022 11 10 59893 0.1938 0.2519 -0.04794 2022 11 11 59894 0.1919 0.2511 -0.04732 2022 11 12 59895 0.1900 0.2503 -0.04660 2022 11 13 59896 0.1880 0.2496 -0.04577 2022 11 14 59897 0.1861 0.2488 -0.04496 2022 11 15 59898 0.1841 0.2482 -0.04430 2022 11 16 59899 0.1822 0.2475 -0.04381 2022 11 17 59900 0.1802 0.2469 -0.04352 2022 11 18 59901 0.1782 0.2463 -0.04342 2022 11 19 59902 0.1762 0.2457 -0.04350 2022 11 20 59903 0.1742 0.2452 -0.04374 2022 11 21 59904 0.1722 0.2447 -0.04408 2022 11 22 59905 0.1702 0.2442 -0.04438 2022 11 23 59906 0.1682 0.2438 -0.04458 2022 11 24 59907 0.1662 0.2434 -0.04454 2022 11 25 59908 0.1641 0.2430 -0.04425 2022 11 26 59909 0.1621 0.2427 -0.04381 2022 11 27 59910 0.1601 0.2424 -0.04330 2022 11 28 59911 0.1580 0.2421 -0.04274 2022 11 29 59912 0.1560 0.2418 -0.04234 2022 11 30 59913 0.1539 0.2416 -0.04215 2022 12 1 59914 0.1519 0.2414 -0.04213 2022 12 2 59915 0.1498 0.2413 -0.04226 2022 12 3 59916 0.1477 0.2412 -0.04241 2022 12 4 59917 0.1457 0.2411 -0.04249 2022 12 5 59918 0.1436 0.2410 -0.04237 2022 12 6 59919 0.1416 0.2410 -0.04212 2022 12 7 59920 0.1395 0.2410 -0.04168 2022 12 8 59921 0.1374 0.2411 -0.04111 2022 12 9 59922 0.1354 0.2411 -0.04049 2022 12 10 59923 0.1333 0.2412 -0.03981 2022 12 11 59924 0.1313 0.2414 -0.03920 2022 12 12 59925 0.1293 0.2415 -0.03872 2022 12 13 59926 0.1272 0.2417 -0.03839 2022 12 14 59927 0.1252 0.2420 -0.03828 2022 12 15 59928 0.1232 0.2422 -0.03836 2022 12 16 59929 0.1211 0.2425 -0.03858 2022 12 17 59930 0.1191 0.2429 -0.03896 2022 12 18 59931 0.1171 0.2432 -0.03945 2022 12 19 59932 0.1151 0.2436 -0.03996 2022 12 20 59933 0.1131 0.2440 -0.04034 2022 12 21 59934 0.1111 0.2445 -0.04050 2022 12 22 59935 0.1092 0.2450 -0.04042 2022 12 23 59936 0.1072 0.2455 -0.04011 2022 12 24 59937 0.1053 0.2460 -0.03968 2022 12 25 59938 0.1033 0.2466 -0.03930 2022 12 26 59939 0.1014 0.2472 -0.03906 2022 12 27 59940 0.0995 0.2478 -0.03901 2022 12 28 59941 0.0976 0.2485 -0.03914 2022 12 29 59942 0.0957 0.2492 -0.03935 2022 12 30 59943 0.0938 0.2499 -0.03962 2022 12 31 59944 0.0920 0.2507 -0.03985 2023 1 1 59945 0.0901 0.2515 -0.03983 2023 1 2 59946 0.0883 0.2523 -0.03953 2023 1 3 59947 0.0865 0.2531 -0.03905 2023 1 4 59948 0.0847 0.2540 -0.03838 2023 1 5 59949 0.0829 0.2549 -0.03756 2023 1 6 59950 0.0811 0.2558 -0.03665 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) 59559 -111.02 0.60 -5.97 0.12 59560 -111.09 0.61 -5.63 0.12 59561 -111.15 0.61 -5.45 0.12 59562 -111.21 0.83 -5.40 0.11 59563 -111.26 0.83 -5.35 0.11 59564 -111.23 0.83 -5.31 0.11 59565 -111.07 0.83 -5.38 0.11 59566 -110.87 0.32 -5.61 0.16 59567 -110.74 0.32 -5.84 0.16 59568 -110.66 0.32 -5.94 0.16 59569 -110.54 0.63 -5.93 0.04 59570 -110.34 0.63 -5.90 0.04 59571 -110.07 0.63 -5.90 0.04 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 59520 -113.9 -7.3 59521 -114.1 -7.1 59522 -114.3 -7.0 59523 -114.4 -7.1 59524 -114.2 -7.3 59525 -113.7 -7.3 59526 -113.4 -7.1 59527 -113.2 -7.0 59528 -113.4 -7.1 59529 -113.4 -7.2 59530 -113.4 -7.3 59531 -113.2 -7.2 59532 -113.0 -7.0 59533 -112.9 -6.9 59534 -112.9 -6.7 59535 -112.9 -6.4 59536 -112.9 -6.2 59537 -112.8 -6.3 59538 -112.6 -6.5 59539 -112.4 -6.7 59540 -112.3 -6.8 59541 -112.2 -6.9 59542 -112.0 -6.9 59543 -111.7 -6.9 59544 -111.3 -6.8 59545 -110.9 -6.6 59546 -110.9 -6.4 59547 -111.1 -6.5 59548 -111.5 -6.5 59549 -111.7 -6.3 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59559 0.272 0.238 -0.128 0.124 59560 0.280 0.244 -0.123 0.123 59561 0.290 0.244 -0.118 0.123 59562 0.298 0.331 -0.112 0.111 59563 0.304 0.331 -0.106 0.111 59564 0.306 0.331 -0.099 0.111 59565 0.305 0.331 -0.091 0.111 59566 0.302 0.128 -0.084 0.160 59567 0.296 0.128 -0.076 0.160 59568 0.288 0.128 -0.067 0.160 59569 0.279 0.249 -0.059 0.038 59570 0.269 0.249 -0.050 0.038 59571 0.258 0.249 -0.041 0.038 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 59520 0.24 -0.07 59521 0.25 -0.05 59522 0.20 -0.04 59523 0.14 -0.02 59524 0.15 -0.03 59525 0.20 -0.06 59526 0.25 -0.08 59527 0.30 -0.10 59528 0.29 -0.09 59529 0.26 -0.07 59530 0.22 -0.05 59531 0.22 -0.06 59532 0.23 -0.08 59533 0.24 -0.10 59534 0.25 -0.12 59535 0.25 -0.08 59536 0.24 -0.03 59537 0.24 0.03 59538 0.24 0.03 59539 0.25 0.01 59540 0.26 -0.01 59541 0.27 -0.03 59542 0.27 -0.05 59543 0.30 -0.03 59544 0.34 0.01 59545 0.32 -0.02 59546 0.28 -0.06 59547 0.23 -0.10 59548 0.19 -0.15 59549 0.20 -0.14 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).