********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 3 February 2022 Vol. XXXV No. 005 ______________________________________________________________________ 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 * * * * 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. * * * * 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 22 1 28 59607 0.02914 .00009 0.31562 .00009 -0.109055 0.000043 22 1 29 59608 0.02830 .00009 0.31719 .00009 -0.108609 0.000073 22 1 30 59609 0.02753 .00009 0.31899 .00009 -0.108158 0.000076 22 1 31 59610 0.02670 .00009 0.32097 .00009 -0.107770 0.000043 22 2 1 59611 0.02614 .00009 0.32309 .00009 -0.107336 0.000035 22 2 2 59612 0.02586 .00009 0.32543 .00009 -0.107088 0.000033 22 2 3 59613 0.02568 .00009 0.32780 .00009 -0.107038 0.000032 IERS Final Values MJD x y UT1-UTC " " s 21 12 2 59550 0.1166 0.2531 -0.10738 21 12 3 59551 0.1152 0.2541 -0.10778 21 12 4 59552 0.1135 0.2545 -0.10791 21 12 5 59553 0.1122 0.2545 -0.10779 21 12 6 59554 0.1109 0.2551 -0.10753 21 12 7 59555 0.1093 0.2556 -0.10726 21 12 8 59556 0.1067 0.2563 -0.10711 21 12 9 59557 0.1040 0.2568 -0.10717 21 12 10 59558 0.1014 0.2571 -0.10740 21 12 11 59559 0.0984 0.2574 -0.10777 21 12 12 59560 0.0952 0.2574 -0.10821 21 12 13 59561 0.0925 0.2574 -0.10862 21 12 14 59562 0.0903 0.2580 -0.10896 21 12 15 59563 0.0878 0.2590 -0.10920 21 12 16 59564 0.0854 0.2597 -0.10931 21 12 17 59565 0.0826 0.2607 -0.10927 21 12 18 59566 0.0802 0.2613 -0.10907 21 12 19 59567 0.0787 0.2617 -0.10875 21 12 20 59568 0.0774 0.2626 -0.10838 21 12 21 59569 0.0754 0.2634 -0.10800 21 12 22 59570 0.0731 0.2643 -0.10762 21 12 23 59571 0.0709 0.2652 -0.10734 21 12 24 59572 0.0685 0.2665 -0.10724 21 12 25 59573 0.0661 0.2678 -0.10737 21 12 26 59574 0.0643 0.2690 -0.10772 21 12 27 59575 0.0628 0.2704 -0.10826 21 12 28 59576 0.0611 0.2719 -0.10892 21 12 29 59577 0.0592 0.2735 -0.10957 21 12 30 59578 0.0578 0.2747 -0.11010 21 12 31 59579 0.0563 0.2760 -0.11044 22 1 1 59580 0.0546 0.2770 -0.11052 _______________________________________________________________________ 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 = 0.1347 - 0.0853 cos A - 0.0434 sin A - 0.0261 cos C + 0.0098 sin C y = 0.3564 - 0.0411 cos A + 0.0762 sin A + 0.0098 cos C + 0.0261 sin C UT1-UTC = -0.1083 + 0.00020 (MJD - 59621) - (UT2-UT1) where A = 2*pi*(MJD-59613)/365.25 and C = 2*pi*(MJD-59613)/435. TAI-UTC(MJD 59614) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59613)**0.80 S t = 0.00025 (MJD-59613)**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 2 4 59614 0.0253 0.3301 -0.10710 2022 2 5 59615 0.0250 0.3322 -0.10724 2022 2 6 59616 0.0246 0.3342 -0.10732 2022 2 7 59617 0.0241 0.3361 -0.10732 2022 2 8 59618 0.0237 0.3379 -0.10719 2022 2 9 59619 0.0233 0.3396 -0.10688 2022 2 10 59620 0.0230 0.3413 -0.10640 2022 2 11 59621 0.0228 0.3431 -0.10576 2022 2 12 59622 0.0226 0.3448 -0.10502 2022 2 13 59623 0.0224 0.3465 -0.10424 2022 2 14 59624 0.0223 0.3483 -0.10347 2022 2 15 59625 0.0222 0.3500 -0.10281 2022 2 16 59626 0.0221 0.3518 -0.10233 2022 2 17 59627 0.0220 0.3535 -0.10211 2022 2 18 59628 0.0219 0.3552 -0.10216 2022 2 19 59629 0.0218 0.3569 -0.10243 2022 2 20 59630 0.0217 0.3586 -0.10286 2022 2 21 59631 0.0216 0.3603 -0.10333 2022 2 22 59632 0.0215 0.3620 -0.10377 2022 2 23 59633 0.0214 0.3636 -0.10407 2022 2 24 59634 0.0214 0.3653 -0.10418 2022 2 25 59635 0.0215 0.3670 -0.10412 2022 2 26 59636 0.0216 0.3686 -0.10394 2022 2 27 59637 0.0217 0.3703 -0.10375 2022 2 28 59638 0.0218 0.3720 -0.10368 2022 3 1 59639 0.0220 0.3738 -0.10382 2022 3 2 59640 0.0222 0.3755 -0.10422 2022 3 3 59641 0.0225 0.3772 -0.10485 2022 3 4 59642 0.0228 0.3789 -0.10562 2022 3 5 59643 0.0231 0.3807 -0.10643 2022 3 6 59644 0.0234 0.3824 -0.10720 2022 3 7 59645 0.0238 0.3841 -0.10783 2022 3 8 59646 0.0242 0.3858 -0.10830 2022 3 9 59647 0.0246 0.3875 -0.10858 2022 3 10 59648 0.0251 0.3892 -0.10870 2022 3 11 59649 0.0256 0.3909 -0.10869 2022 3 12 59650 0.0262 0.3926 -0.10862 2022 3 13 59651 0.0268 0.3943 -0.10854 2022 3 14 59652 0.0274 0.3960 -0.10853 2022 3 15 59653 0.0281 0.3976 -0.10867 2022 3 16 59654 0.0288 0.3993 -0.10902 2022 3 17 59655 0.0295 0.4010 -0.10960 2022 3 18 59656 0.0302 0.4026 -0.11039 2022 3 19 59657 0.0310 0.4043 -0.11135 2022 3 20 59658 0.0318 0.4059 -0.11237 2022 3 21 59659 0.0327 0.4075 -0.11333 2022 3 22 59660 0.0335 0.4091 -0.11412 2022 3 23 59661 0.0344 0.4107 -0.11467 2022 3 24 59662 0.0354 0.4123 -0.11498 2022 3 25 59663 0.0363 0.4138 -0.11510 2022 3 26 59664 0.0373 0.4154 -0.11514 2022 3 27 59665 0.0384 0.4169 -0.11521 2022 3 28 59666 0.0394 0.4185 -0.11542 2022 3 29 59667 0.0405 0.4200 -0.11583 2022 3 30 59668 0.0416 0.4215 -0.11646 2022 3 31 59669 0.0427 0.4230 -0.11725 2022 4 1 59670 0.0439 0.4244 -0.11811 2022 4 2 59671 0.0451 0.4259 -0.11893 2022 4 3 59672 0.0463 0.4273 -0.11963 2022 4 4 59673 0.0475 0.4287 -0.12015 2022 4 5 59674 0.0488 0.4301 -0.12046 2022 4 6 59675 0.0501 0.4315 -0.12057 2022 4 7 59676 0.0514 0.4329 -0.12051 2022 4 8 59677 0.0528 0.4342 -0.12033 2022 4 9 59678 0.0541 0.4356 -0.12011 2022 4 10 59679 0.0555 0.4369 -0.11993 2022 4 11 59680 0.0569 0.4382 -0.11984 2022 4 12 59681 0.0584 0.4395 -0.11992 2022 4 13 59682 0.0598 0.4407 -0.12022 2022 4 14 59683 0.0613 0.4419 -0.12075 2022 4 15 59684 0.0628 0.4432 -0.12148 2022 4 16 59685 0.0644 0.4443 -0.12232 2022 4 17 59686 0.0659 0.4455 -0.12316 2022 4 18 59687 0.0675 0.4467 -0.12385 2022 4 19 59688 0.0691 0.4478 -0.12430 2022 4 20 59689 0.0707 0.4489 -0.12447 2022 4 21 59690 0.0724 0.4500 -0.12442 2022 4 22 59691 0.0740 0.4510 -0.12424 2022 4 23 59692 0.0757 0.4520 -0.12405 2022 4 24 59693 0.0774 0.4531 -0.12396 2022 4 25 59694 0.0791 0.4540 -0.12404 2022 4 26 59695 0.0809 0.4550 -0.12431 2022 4 27 59696 0.0826 0.4559 -0.12473 2022 4 28 59697 0.0844 0.4568 -0.12523 2022 4 29 59698 0.0862 0.4577 -0.12572 2022 4 30 59699 0.0880 0.4586 -0.12611 2022 5 1 59700 0.0898 0.4594 -0.12633 2022 5 2 59701 0.0916 0.4602 -0.12635 2022 5 3 59702 0.0935 0.4610 -0.12616 2022 5 4 59703 0.0954 0.4617 -0.12578 2022 5 5 59704 0.0972 0.4624 -0.12525 2022 5 6 59705 0.0991 0.4631 -0.12465 2022 5 7 59706 0.1010 0.4638 -0.12404 2022 5 8 59707 0.1030 0.4644 -0.12350 2022 5 9 59708 0.1049 0.4651 -0.12309 2022 5 10 59709 0.1068 0.4656 -0.12287 2022 5 11 59710 0.1088 0.4662 -0.12285 2022 5 12 59711 0.1107 0.4667 -0.12305 2022 5 13 59712 0.1127 0.4672 -0.12340 2022 5 14 59713 0.1147 0.4677 -0.12381 2022 5 15 59714 0.1167 0.4681 -0.12415 2022 5 16 59715 0.1187 0.4685 -0.12430 2022 5 17 59716 0.1207 0.4689 -0.12418 2022 5 18 59717 0.1227 0.4693 -0.12380 2022 5 19 59718 0.1247 0.4696 -0.12325 2022 5 20 59719 0.1267 0.4699 -0.12265 2022 5 21 59720 0.1287 0.4701 -0.12214 2022 5 22 59721 0.1308 0.4704 -0.12178 2022 5 23 59722 0.1328 0.4706 -0.12162 2022 5 24 59723 0.1349 0.4707 -0.12161 2022 5 25 59724 0.1369 0.4709 -0.12168 2022 5 26 59725 0.1389 0.4710 -0.12174 2022 5 27 59726 0.1410 0.4710 -0.12173 2022 5 28 59727 0.1430 0.4711 -0.12156 2022 5 29 59728 0.1451 0.4711 -0.12120 2022 5 30 59729 0.1471 0.4711 -0.12064 2022 5 31 59730 0.1492 0.4711 -0.11987 2022 6 1 59731 0.1512 0.4710 -0.11894 2022 6 2 59732 0.1533 0.4709 -0.11792 2022 6 3 59733 0.1553 0.4707 -0.11687 2022 6 4 59734 0.1574 0.4706 -0.11586 2022 6 5 59735 0.1594 0.4704 -0.11496 2022 6 6 59736 0.1614 0.4701 -0.11422 2022 6 7 59737 0.1635 0.4699 -0.11367 2022 6 8 59738 0.1655 0.4696 -0.11331 2022 6 9 59739 0.1675 0.4693 -0.11312 2022 6 10 59740 0.1695 0.4689 -0.11303 2022 6 11 59741 0.1715 0.4685 -0.11293 2022 6 12 59742 0.1735 0.4681 -0.11270 2022 6 13 59743 0.1755 0.4677 -0.11223 2022 6 14 59744 0.1775 0.4672 -0.11150 2022 6 15 59745 0.1795 0.4667 -0.11055 2022 6 16 59746 0.1815 0.4662 -0.10950 2022 6 17 59747 0.1834 0.4656 -0.10849 2022 6 18 59748 0.1854 0.4650 -0.10764 2022 6 19 59749 0.1873 0.4644 -0.10698 2022 6 20 59750 0.1892 0.4638 -0.10650 2022 6 21 59751 0.1911 0.4631 -0.10612 2022 6 22 59752 0.1930 0.4624 -0.10574 2022 6 23 59753 0.1949 0.4617 -0.10528 2022 6 24 59754 0.1968 0.4609 -0.10467 2022 6 25 59755 0.1987 0.4601 -0.10387 2022 6 26 59756 0.2005 0.4593 -0.10287 2022 6 27 59757 0.2023 0.4584 -0.10167 2022 6 28 59758 0.2041 0.4576 -0.10031 2022 6 29 59759 0.2059 0.4566 -0.09884 2022 6 30 59760 0.2077 0.4557 -0.09733 2022 7 1 59761 0.2095 0.4548 -0.09585 2022 7 2 59762 0.2112 0.4538 -0.09448 2022 7 3 59763 0.2130 0.4528 -0.09326 2022 7 4 59764 0.2147 0.4517 -0.09222 2022 7 5 59765 0.2164 0.4507 -0.09137 2022 7 6 59766 0.2180 0.4496 -0.09069 2022 7 7 59767 0.2197 0.4484 -0.09012 2022 7 8 59768 0.2213 0.4473 -0.08959 2022 7 9 59769 0.2229 0.4461 -0.08898 2022 7 10 59770 0.2245 0.4449 -0.08820 2022 7 11 59771 0.2261 0.4437 -0.08719 2022 7 12 59772 0.2276 0.4425 -0.08596 2022 7 13 59773 0.2291 0.4412 -0.08461 2022 7 14 59774 0.2306 0.4399 -0.08326 2022 7 15 59775 0.2321 0.4386 -0.08205 2022 7 16 59776 0.2335 0.4373 -0.08108 2022 7 17 59777 0.2350 0.4359 -0.08033 2022 7 18 59778 0.2364 0.4346 -0.07974 2022 7 19 59779 0.2377 0.4332 -0.07920 2022 7 20 59780 0.2391 0.4317 -0.07861 2022 7 21 59781 0.2404 0.4303 -0.07787 2022 7 22 59782 0.2417 0.4288 -0.07695 2022 7 23 59783 0.2430 0.4274 -0.07583 2022 7 24 59784 0.2442 0.4259 -0.07451 2022 7 25 59785 0.2454 0.4243 -0.07303 2022 7 26 59786 0.2466 0.4228 -0.07145 2022 7 27 59787 0.2478 0.4212 -0.06982 2022 7 28 59788 0.2489 0.4197 -0.06821 2022 7 29 59789 0.2500 0.4181 -0.06671 2022 7 30 59790 0.2511 0.4165 -0.06535 2022 7 31 59791 0.2521 0.4148 -0.06418 2022 8 1 59792 0.2531 0.4132 -0.06320 2022 8 2 59793 0.2541 0.4115 -0.06239 2022 8 3 59794 0.2550 0.4099 -0.06167 2022 8 4 59795 0.2560 0.4082 -0.06099 2022 8 5 59796 0.2569 0.4065 -0.06023 2022 8 6 59797 0.2577 0.4047 -0.05931 2022 8 7 59798 0.2585 0.4030 -0.05817 2022 8 8 59799 0.2593 0.4013 -0.05678 2022 8 9 59800 0.2601 0.3995 -0.05521 2022 8 10 59801 0.2608 0.3977 -0.05358 2022 8 11 59802 0.2615 0.3959 -0.05204 2022 8 12 59803 0.2622 0.3942 -0.05071 2022 8 13 59804 0.2628 0.3923 -0.04966 2022 8 14 59805 0.2634 0.3905 -0.04887 2022 8 15 59806 0.2640 0.3887 -0.04824 2022 8 16 59807 0.2645 0.3869 -0.04767 2022 8 17 59808 0.2650 0.3850 -0.04705 2022 8 18 59809 0.2655 0.3832 -0.04630 2022 8 19 59810 0.2659 0.3813 -0.04539 2022 8 20 59811 0.2663 0.3795 -0.04433 2022 8 21 59812 0.2667 0.3776 -0.04315 2022 8 22 59813 0.2670 0.3757 -0.04192 2022 8 23 59814 0.2673 0.3738 -0.04070 2022 8 24 59815 0.2676 0.3719 -0.03956 2022 8 25 59816 0.2678 0.3700 -0.03858 2022 8 26 59817 0.2680 0.3681 -0.03781 2022 8 27 59818 0.2682 0.3662 -0.03728 2022 8 28 59819 0.2683 0.3643 -0.03701 2022 8 29 59820 0.2684 0.3624 -0.03695 2022 8 30 59821 0.2685 0.3605 -0.03705 2022 8 31 59822 0.2685 0.3586 -0.03722 2022 9 1 59823 0.2685 0.3567 -0.03737 2022 9 2 59824 0.2684 0.3548 -0.03742 2022 9 3 59825 0.2683 0.3528 -0.03731 2022 9 4 59826 0.2682 0.3509 -0.03701 2022 9 5 59827 0.2681 0.3490 -0.03655 2022 9 6 59828 0.2679 0.3471 -0.03602 2022 9 7 59829 0.2677 0.3452 -0.03551 2022 9 8 59830 0.2674 0.3433 -0.03517 2022 9 9 59831 0.2671 0.3414 -0.03506 2022 9 10 59832 0.2668 0.3395 -0.03517 2022 9 11 59833 0.2665 0.3376 -0.03544 2022 9 12 59834 0.2661 0.3357 -0.03575 2022 9 13 59835 0.2657 0.3338 -0.03601 2022 9 14 59836 0.2652 0.3319 -0.03612 2022 9 15 59837 0.2647 0.3301 -0.03603 2022 9 16 59838 0.2642 0.3282 -0.03567 2022 9 17 59839 0.2636 0.3263 -0.03511 2022 9 18 59840 0.2630 0.3245 -0.03439 2022 9 19 59841 0.2624 0.3226 -0.03365 2022 9 20 59842 0.2617 0.3208 -0.03273 2022 9 21 59843 0.2611 0.3190 -0.03192 2022 9 22 59844 0.2603 0.3172 -0.03131 2022 9 23 59845 0.2596 0.3153 -0.03088 2022 9 24 59846 0.2588 0.3136 -0.03067 2022 9 25 59847 0.2580 0.3118 -0.03062 2022 9 26 59848 0.2571 0.3100 -0.03080 2022 9 27 59849 0.2562 0.3082 -0.03100 2022 9 28 59850 0.2553 0.3065 -0.03116 2022 9 29 59851 0.2544 0.3048 -0.03124 2022 9 30 59852 0.2534 0.3030 -0.03124 2022 10 1 59853 0.2524 0.3013 -0.03105 2022 10 2 59854 0.2514 0.2996 -0.03077 2022 10 3 59855 0.2503 0.2980 -0.03047 2022 10 4 59856 0.2492 0.2963 -0.03017 2022 10 5 59857 0.2481 0.2947 -0.03008 2022 10 6 59858 0.2469 0.2930 -0.03024 2022 10 7 59859 0.2457 0.2914 -0.03064 2022 10 8 59860 0.2445 0.2898 -0.03129 2022 10 9 59861 0.2433 0.2883 -0.03203 2022 10 10 59862 0.2420 0.2867 -0.03287 2022 10 11 59863 0.2407 0.2852 -0.03359 2022 10 12 59864 0.2394 0.2836 -0.03409 2022 10 13 59865 0.2381 0.2821 -0.03442 2022 10 14 59866 0.2367 0.2807 -0.03447 2022 10 15 59867 0.2353 0.2792 -0.03439 2022 10 16 59868 0.2339 0.2778 -0.03419 2022 10 17 59869 0.2324 0.2763 -0.03390 2022 10 18 59870 0.2309 0.2750 -0.03370 2022 10 19 59871 0.2294 0.2736 -0.03362 2022 10 20 59872 0.2279 0.2722 -0.03372 2022 10 21 59873 0.2264 0.2709 -0.03406 2022 10 22 59874 0.2248 0.2696 -0.03464 2022 10 23 59875 0.2232 0.2683 -0.03537 2022 10 24 59876 0.2216 0.2671 -0.03620 2022 10 25 59877 0.2199 0.2658 -0.03705 2022 10 26 59878 0.2183 0.2646 -0.03781 2022 10 27 59879 0.2166 0.2634 -0.03840 2022 10 28 59880 0.2149 0.2623 -0.03882 2022 10 29 59881 0.2132 0.2611 -0.03907 2022 10 30 59882 0.2115 0.2600 -0.03918 2022 10 31 59883 0.2097 0.2589 -0.03923 2022 11 1 59884 0.2079 0.2579 -0.03937 2022 11 2 59885 0.2061 0.2569 -0.03971 2022 11 3 59886 0.2043 0.2559 -0.04028 2022 11 4 59887 0.2025 0.2549 -0.04106 2022 11 5 59888 0.2006 0.2539 -0.04213 2022 11 6 59889 0.1988 0.2530 -0.04313 2022 11 7 59890 0.1969 0.2521 -0.04410 2022 11 8 59891 0.1950 0.2513 -0.04485 2022 11 9 59892 0.1931 0.2504 -0.04541 2022 11 10 59893 0.1912 0.2496 -0.04572 2022 11 11 59894 0.1893 0.2488 -0.04576 2022 11 12 59895 0.1873 0.2481 -0.04559 2022 11 13 59896 0.1854 0.2474 -0.04525 2022 11 14 59897 0.1834 0.2467 -0.04497 2022 11 15 59898 0.1814 0.2460 -0.04466 2022 11 16 59899 0.1794 0.2454 -0.04441 2022 11 17 59900 0.1774 0.2448 -0.04433 2022 11 18 59901 0.1754 0.2442 -0.04448 2022 11 19 59902 0.1734 0.2437 -0.04476 2022 11 20 59903 0.1714 0.2432 -0.04513 2022 11 21 59904 0.1694 0.2427 -0.04556 2022 11 22 59905 0.1673 0.2423 -0.04593 2022 11 23 59906 0.1653 0.2418 -0.04621 2022 11 24 59907 0.1632 0.2415 -0.04634 2022 11 25 59908 0.1612 0.2411 -0.04626 2022 11 26 59909 0.1591 0.2408 -0.04601 2022 11 27 59910 0.1570 0.2405 -0.04573 2022 11 28 59911 0.1550 0.2402 -0.04553 2022 11 29 59912 0.1529 0.2400 -0.04552 2022 11 30 59913 0.1508 0.2398 -0.04560 2022 12 1 59914 0.1487 0.2396 -0.04587 2022 12 2 59915 0.1467 0.2395 -0.04633 2022 12 3 59916 0.1446 0.2394 -0.04695 2022 12 4 59917 0.1425 0.2393 -0.04745 2022 12 5 59918 0.1404 0.2393 -0.04782 2022 12 6 59919 0.1384 0.2393 -0.04804 2022 12 7 59920 0.1363 0.2393 -0.04797 2022 12 8 59921 0.1342 0.2394 -0.04772 2022 12 9 59922 0.1321 0.2395 -0.04727 2022 12 10 59923 0.1301 0.2396 -0.04668 2022 12 11 59924 0.1280 0.2398 -0.04601 2022 12 12 59925 0.1259 0.2399 -0.04538 2022 12 13 59926 0.1239 0.2402 -0.04479 2022 12 14 59927 0.1218 0.2404 -0.04443 2022 12 15 59928 0.1198 0.2407 -0.04422 2022 12 16 59929 0.1178 0.2410 -0.04419 2022 12 17 59930 0.1157 0.2413 -0.04435 2022 12 18 59931 0.1137 0.2417 -0.04459 2022 12 19 59932 0.1117 0.2421 -0.04492 2022 12 20 59933 0.1097 0.2426 -0.04511 2022 12 21 59934 0.1077 0.2430 -0.04501 2022 12 22 59935 0.1057 0.2435 -0.04466 2022 12 23 59936 0.1037 0.2440 -0.04408 2022 12 24 59937 0.1018 0.2446 -0.04334 2022 12 25 59938 0.0998 0.2452 -0.04258 2022 12 26 59939 0.0979 0.2458 -0.04193 2022 12 27 59940 0.0960 0.2465 -0.04151 2022 12 28 59941 0.0941 0.2471 -0.04135 2022 12 29 59942 0.0922 0.2478 -0.04130 2022 12 30 59943 0.0903 0.2486 -0.04135 2022 12 31 59944 0.0884 0.2493 -0.04135 2023 1 1 59945 0.0866 0.2501 -0.04121 2023 1 2 59946 0.0847 0.2510 -0.04089 2023 1 3 59947 0.0829 0.2518 -0.04036 2023 1 4 59948 0.0811 0.2527 -0.03961 2023 1 5 59949 0.0793 0.2536 -0.03863 2023 1 6 59950 0.0775 0.2545 -0.03750 2023 1 7 59951 0.0758 0.2555 -0.03638 2023 1 8 59952 0.0741 0.2565 -0.03526 2023 1 9 59953 0.0724 0.2575 -0.03426 2023 1 10 59954 0.0707 0.2586 -0.03349 2023 1 11 59955 0.0690 0.2596 -0.03294 2023 1 12 59956 0.0674 0.2607 -0.03259 2023 1 13 59957 0.0657 0.2618 -0.03238 2023 1 14 59958 0.0641 0.2630 -0.03227 2023 1 15 59959 0.0625 0.2642 -0.03222 2023 1 16 59960 0.0610 0.2654 -0.03213 2023 1 17 59961 0.0594 0.2666 -0.03192 2023 1 18 59962 0.0579 0.2678 -0.03155 2023 1 19 59963 0.0564 0.2691 -0.03098 2023 1 20 59964 0.0550 0.2704 -0.03025 2023 1 21 59965 0.0535 0.2717 -0.02955 2023 1 22 59966 0.0521 0.2730 -0.02900 2023 1 23 59967 0.0507 0.2744 -0.02857 2023 1 24 59968 0.0494 0.2758 -0.02842 2023 1 25 59969 0.0480 0.2772 -0.02850 2023 1 26 59970 0.0467 0.2786 -0.02864 2023 1 27 59971 0.0454 0.2801 -0.02878 2023 1 28 59972 0.0442 0.2815 -0.02876 2023 1 29 59973 0.0430 0.2830 -0.02853 2023 1 30 59974 0.0418 0.2845 -0.02801 2023 1 31 59975 0.0406 0.2860 -0.02735 2023 2 1 59976 0.0394 0.2876 -0.02655 2023 2 2 59977 0.0383 0.2891 -0.02572 2023 2 3 59978 0.0372 0.2907 -0.02497 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) 59591 -110.59 0.66 -5.15 0.05 59592 -110.59 0.66 -5.22 0.05 59593 -110.43 0.66 -5.30 0.05 59594 -110.20 0.58 -5.49 0.07 59595 -110.05 0.58 -5.74 0.07 59596 -110.00 0.57 -5.90 0.09 59597 -109.91 0.37 -5.92 0.16 59598 -109.68 0.37 -5.86 0.16 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 59550 -111.9 -6.0 59551 -112.1 -5.9 59552 -112.2 -6.0 59553 -111.9 -6.2 59554 -111.5 -6.1 59555 -111.2 -6.0 59556 -111.2 -6.1 59557 -111.1 -6.3 59558 -111.1 -6.3 59559 -111.1 -6.0 59560 -111.1 -5.7 59561 -111.1 -5.5 59562 -111.2 -5.4 59563 -111.3 -5.4 59564 -111.4 -5.4 59565 -111.4 -5.5 59566 -111.1 -5.7 59567 -110.9 -5.9 59568 -110.7 -6.0 59569 -110.5 -6.0 59570 -110.4 -5.9 59571 -110.2 -5.9 59572 -109.8 -5.9 59573 -109.5 -5.9 59574 -109.3 -5.9 59575 -109.3 -6.0 59576 -109.3 -6.0 59577 -109.8 -5.8 59578 -110.7 -5.6 59579 -111.4 -5.4 59580 -111.9 -5.6 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59591 0.277 0.263 -0.029 0.052 59592 0.258 0.263 -0.038 0.052 59593 0.233 0.263 -0.052 0.052 59594 0.210 0.229 -0.068 0.067 59595 0.190 0.229 -0.086 0.067 59596 0.173 0.226 -0.105 0.088 59597 0.158 0.148 -0.125 0.156 59598 0.143 0.148 -0.145 0.156 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 59550 0.23 -0.12 59551 0.27 -0.11 59552 0.27 -0.11 59553 0.27 -0.11 59554 0.26 -0.11 59555 0.26 -0.12 59556 0.25 -0.12 59557 0.24 -0.12 59558 0.23 -0.12 59559 0.24 -0.11 59560 0.26 -0.10 59561 0.29 -0.10 59562 0.31 -0.09 59563 0.28 -0.11 59564 0.23 -0.12 59565 0.19 -0.14 59566 0.19 -0.13 59567 0.22 -0.10 59568 0.25 -0.08 59569 0.27 -0.05 59570 0.25 -0.04 59571 0.21 -0.03 59572 0.22 -0.07 59573 0.25 -0.14 59574 0.28 -0.20 59575 0.31 -0.26 59576 0.34 -0.32 59577 0.22 -0.32 59578 0.07 -0.31 59579 0.04 -0.29 59580 0.06 -0.26 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).