********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 1 November 2018 Vol. XXXI No. 044 ______________________________________________________________________ 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 = +0.0 seconds beginning 21 Sep 2018 at 0000 UTC Beginning 1 January 2017: TAI-UTC = 37.000 000 seconds *********************************************************************** * * * Please note that daily and Bulletin A EOP data can be obtained from * * the primary Earth Orientation (EO) servers at: * * http://maia.usno.navy.mil ftp://maia.usno.navy.mil * * and from the backup EO server at: * * http://toshi.nofs.navy.mil ftp://toshi.nofs.navy.mil * * * * An additional backup mirror of the daily and Bulletin A EOP data * * is now hosted by NASA's Archive of Space Geodesy Data server at: * * ftp://cddis.gsfc.nasa.gov/pub/products/iers * * Daily EOP data will be uploaded here at 18:00 UTC, and * * Bulletin A EOP data should be available by 20:00 UTC. * * * * Questions and enquiries can be emailed to the following address: * * navobsy_eop.fct@navy.mil * * This address will be replaced on Nov 8, 2018 by the following: * * 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 18 10 26 58417 0.19268 .00009 0.30315 .00009 0.025282 0.000010 18 10 27 58418 0.19217 .00009 0.30257 .00009 0.024095 0.000009 18 10 28 58419 0.19149 .00009 0.30201 .00009 0.023022 0.000012 18 10 29 58420 0.19013 .00009 0.30123 .00009 0.022059 0.000017 18 10 30 58421 0.18827 .00009 0.30009 .00009 0.021171 0.000019 18 10 31 58422 0.18637 .00009 0.29866 .00009 0.020310 0.000018 18 11 1 58423 0.18452 .00009 0.29702 .00009 0.019398 0.000017 _______________________________________________________________________ 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 = 0.1237 + 0.0217 cos A - 0.0897 sin A + 0.0328 cos C + 0.0178 sin C y = 0.3529 - 0.0800 cos A - 0.0230 sin A + 0.0178 cos C - 0.0328 sin C UT1-UTC = -0.0073 - 0.00066 (MJD - 58431) - (UT2-UT1) where A = 2*pi*(MJD-58423)/365.25 and C = 2*pi*(MJD-58423)/435. TAI-UTC(MJD 58424) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58423)**0.80 S t = 0.00025 (MJD-58423)**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) 2018 11 2 58424 0.1830 0.2954 0.01832 2018 11 3 58425 0.1815 0.2939 0.01712 2018 11 4 58426 0.1803 0.2925 0.01582 2018 11 5 58427 0.1790 0.2914 0.01449 2018 11 6 58428 0.1777 0.2904 0.01320 2018 11 7 58429 0.1763 0.2895 0.01199 2018 11 8 58430 0.1748 0.2886 0.01090 2018 11 9 58431 0.1732 0.2877 0.00997 2018 11 10 58432 0.1717 0.2869 0.00922 2018 11 11 58433 0.1702 0.2861 0.00863 2018 11 12 58434 0.1688 0.2853 0.00813 2018 11 13 58435 0.1674 0.2846 0.00763 2018 11 14 58436 0.1660 0.2840 0.00709 2018 11 15 58437 0.1646 0.2833 0.00646 2018 11 16 58438 0.1632 0.2828 0.00570 2018 11 17 58439 0.1617 0.2822 0.00481 2018 11 18 58440 0.1602 0.2817 0.00381 2018 11 19 58441 0.1586 0.2812 0.00272 2018 11 20 58442 0.1570 0.2808 0.00157 2018 11 21 58443 0.1554 0.2803 0.00040 2018 11 22 58444 0.1538 0.2798 -0.00072 2018 11 23 58445 0.1521 0.2794 -0.00177 2018 11 24 58446 0.1505 0.2790 -0.00269 2018 11 25 58447 0.1489 0.2786 -0.00350 2018 11 26 58448 0.1473 0.2782 -0.00423 2018 11 27 58449 0.1457 0.2779 -0.00496 2018 11 28 58450 0.1441 0.2776 -0.00574 2018 11 29 58451 0.1425 0.2774 -0.00665 2018 11 30 58452 0.1408 0.2771 -0.00770 2018 12 1 58453 0.1392 0.2769 -0.00886 2018 12 2 58454 0.1376 0.2767 -0.01009 2018 12 3 58455 0.1359 0.2766 -0.01131 2018 12 4 58456 0.1343 0.2764 -0.01244 2018 12 5 58457 0.1327 0.2763 -0.01344 2018 12 6 58458 0.1311 0.2762 -0.01426 2018 12 7 58459 0.1294 0.2762 -0.01491 2018 12 8 58460 0.1278 0.2762 -0.01540 2018 12 9 58461 0.1262 0.2762 -0.01580 2018 12 10 58462 0.1245 0.2762 -0.01613 2018 12 11 58463 0.1229 0.2763 -0.01646 2018 12 12 58464 0.1213 0.2764 -0.01682 2018 12 13 58465 0.1196 0.2765 -0.01725 2018 12 14 58466 0.1180 0.2766 -0.01779 2018 12 15 58467 0.1164 0.2768 -0.01845 2018 12 16 58468 0.1148 0.2770 -0.01922 2018 12 17 58469 0.1131 0.2772 -0.02009 2018 12 18 58470 0.1115 0.2775 -0.02101 2018 12 19 58471 0.1099 0.2777 -0.02195 2018 12 20 58472 0.1083 0.2780 -0.02285 2018 12 21 58473 0.1067 0.2783 -0.02365 2018 12 22 58474 0.1051 0.2787 -0.02435 2018 12 23 58475 0.1036 0.2791 -0.02495 2018 12 24 58476 0.1020 0.2795 -0.02552 2018 12 25 58477 0.1004 0.2799 -0.02616 2018 12 26 58478 0.0989 0.2803 -0.02691 2018 12 27 58479 0.0973 0.2808 -0.02782 2018 12 28 58480 0.0958 0.2813 -0.02887 2018 12 29 58481 0.0943 0.2818 -0.03000 2018 12 30 58482 0.0928 0.2824 -0.03114 2018 12 31 58483 0.0912 0.2829 -0.03221 2019 1 1 58484 0.0898 0.2835 -0.03318 2019 1 2 58485 0.0883 0.2842 -0.03400 2019 1 3 58486 0.0868 0.2848 -0.03466 2019 1 4 58487 0.0854 0.2855 -0.03519 2019 1 5 58488 0.0839 0.2862 -0.03562 2019 1 6 58489 0.0825 0.2869 -0.03599 2019 1 7 58490 0.0811 0.2876 -0.03635 2019 1 8 58491 0.0797 0.2884 -0.03675 2019 1 9 58492 0.0783 0.2892 -0.03722 2019 1 10 58493 0.0769 0.2900 -0.03780 2019 1 11 58494 0.0756 0.2908 -0.03849 2019 1 12 58495 0.0742 0.2916 -0.03929 2019 1 13 58496 0.0729 0.2925 -0.04017 2019 1 14 58497 0.0716 0.2934 -0.04111 2019 1 15 58498 0.0703 0.2943 -0.04206 2019 1 16 58499 0.0690 0.2952 -0.04300 2019 1 17 58500 0.0678 0.2962 -0.04386 2019 1 18 58501 0.0666 0.2972 -0.04463 2019 1 19 58502 0.0653 0.2982 -0.04530 2019 1 20 58503 0.0641 0.2992 -0.04593 2019 1 21 58504 0.0630 0.3002 -0.04659 2019 1 22 58505 0.0618 0.3012 -0.04738 2019 1 23 58506 0.0607 0.3023 -0.04834 2019 1 24 58507 0.0596 0.3034 -0.04949 2019 1 25 58508 0.0585 0.3045 -0.05076 2019 1 26 58509 0.0574 0.3056 -0.05207 2019 1 27 58510 0.0564 0.3068 -0.05334 2019 1 28 58511 0.0553 0.3079 -0.05447 2019 1 29 58512 0.0543 0.3091 -0.05545 2019 1 30 58513 0.0534 0.3103 -0.05626 2019 1 31 58514 0.0524 0.3115 -0.05692 2019 2 1 58515 0.0515 0.3127 -0.05747 2019 2 2 58516 0.0506 0.3140 -0.05796 2019 2 3 58517 0.0497 0.3152 -0.05843 2019 2 4 58518 0.0488 0.3165 -0.05893 2019 2 5 58519 0.0480 0.3177 -0.05949 2019 2 6 58520 0.0472 0.3190 -0.06016 2019 2 7 58521 0.0464 0.3203 -0.06095 2019 2 8 58522 0.0456 0.3217 -0.06186 2019 2 9 58523 0.0449 0.3230 -0.06286 2019 2 10 58524 0.0442 0.3243 -0.06394 2019 2 11 58525 0.0435 0.3257 -0.06505 2019 2 12 58526 0.0428 0.3271 -0.06615 2019 2 13 58527 0.0422 0.3284 -0.06721 2019 2 14 58528 0.0416 0.3298 -0.06819 2019 2 15 58529 0.0410 0.3312 -0.06909 2019 2 16 58530 0.0405 0.3326 -0.06994 2019 2 17 58531 0.0400 0.3340 -0.07080 2019 2 18 58532 0.0395 0.3355 -0.07173 2019 2 19 58533 0.0390 0.3369 -0.07284 2019 2 20 58534 0.0386 0.3383 -0.07416 2019 2 21 58535 0.0381 0.3398 -0.07567 2019 2 22 58536 0.0378 0.3412 -0.07729 2019 2 23 58537 0.0374 0.3427 -0.07889 2019 2 24 58538 0.0371 0.3442 -0.08039 2019 2 25 58539 0.0368 0.3456 -0.08171 2019 2 26 58540 0.0365 0.3471 -0.08283 2019 2 27 58541 0.0363 0.3486 -0.08378 2019 2 28 58542 0.0361 0.3501 -0.08459 2019 3 1 58543 0.0359 0.3516 -0.08531 2019 3 2 58544 0.0357 0.3531 -0.08599 2019 3 3 58545 0.0356 0.3546 -0.08669 2019 3 4 58546 0.0355 0.3561 -0.08746 2019 3 5 58547 0.0354 0.3576 -0.08832 2019 3 6 58548 0.0354 0.3591 -0.08930 2019 3 7 58549 0.0354 0.3606 -0.09041 2019 3 8 58550 0.0354 0.3621 -0.09162 2019 3 9 58551 0.0354 0.3636 -0.09291 2019 3 10 58552 0.0355 0.3651 -0.09423 2019 3 11 58553 0.0356 0.3666 -0.09554 2019 3 12 58554 0.0358 0.3681 -0.09679 2019 3 13 58555 0.0359 0.3696 -0.09796 2019 3 14 58556 0.0361 0.3711 -0.09904 2019 3 15 58557 0.0363 0.3726 -0.10004 2019 3 16 58558 0.0366 0.3741 -0.10102 2019 3 17 58559 0.0369 0.3756 -0.10207 2019 3 18 58560 0.0372 0.3771 -0.10326 2019 3 19 58561 0.0375 0.3785 -0.10466 2019 3 20 58562 0.0379 0.3800 -0.10628 2019 3 21 58563 0.0383 0.3815 -0.10806 2019 3 22 58564 0.0387 0.3829 -0.10990 2019 3 23 58565 0.0391 0.3844 -0.11169 2019 3 24 58566 0.0396 0.3859 -0.11332 2019 3 25 58567 0.0401 0.3873 -0.11474 2019 3 26 58568 0.0406 0.3887 -0.11595 2019 3 27 58569 0.0412 0.3902 -0.11698 2019 3 28 58570 0.0418 0.3916 -0.11788 2019 3 29 58571 0.0424 0.3930 -0.11872 2019 3 30 58572 0.0430 0.3944 -0.11955 2019 3 31 58573 0.0437 0.3958 -0.12043 2019 4 1 58574 0.0444 0.3972 -0.12138 2019 4 2 58575 0.0451 0.3985 -0.12244 2019 4 3 58576 0.0459 0.3999 -0.12362 2019 4 4 58577 0.0466 0.4012 -0.12490 2019 4 5 58578 0.0474 0.4026 -0.12626 2019 4 6 58579 0.0483 0.4039 -0.12766 2019 4 7 58580 0.0491 0.4052 -0.12905 2019 4 8 58581 0.0500 0.4065 -0.13036 2019 4 9 58582 0.0509 0.4078 -0.13158 2019 4 10 58583 0.0518 0.4091 -0.13267 2019 4 11 58584 0.0528 0.4103 -0.13367 2019 4 12 58585 0.0537 0.4116 -0.13461 2019 4 13 58586 0.0547 0.4128 -0.13556 2019 4 14 58587 0.0557 0.4140 -0.13661 2019 4 15 58588 0.0568 0.4152 -0.13782 2019 4 16 58589 0.0579 0.4164 -0.13924 2019 4 17 58590 0.0589 0.4175 -0.14085 2019 4 18 58591 0.0601 0.4187 -0.14256 2019 4 19 58592 0.0612 0.4198 -0.14428 2019 4 20 58593 0.0623 0.4209 -0.14590 2019 4 21 58594 0.0635 0.4220 -0.14732 2019 4 22 58595 0.0647 0.4231 -0.14853 2019 4 23 58596 0.0659 0.4242 -0.14953 2019 4 24 58597 0.0672 0.4252 -0.15037 2019 4 25 58598 0.0684 0.4262 -0.15111 2019 4 26 58599 0.0697 0.4272 -0.15182 2019 4 27 58600 0.0710 0.4282 -0.15254 2019 4 28 58601 0.0723 0.4291 -0.15334 2019 4 29 58602 0.0736 0.4301 -0.15424 2019 4 30 58603 0.0750 0.4310 -0.15525 2019 5 1 58604 0.0764 0.4319 -0.15639 2019 5 2 58605 0.0777 0.4328 -0.15763 2019 5 3 58606 0.0791 0.4336 -0.15893 2019 5 4 58607 0.0806 0.4344 -0.16027 2019 5 5 58608 0.0820 0.4353 -0.16157 2019 5 6 58609 0.0834 0.4360 -0.16279 2019 5 7 58610 0.0849 0.4368 -0.16391 2019 5 8 58611 0.0864 0.4376 -0.16493 2019 5 9 58612 0.0879 0.4383 -0.16588 2019 5 10 58613 0.0894 0.4390 -0.16682 2019 5 11 58614 0.0909 0.4396 -0.16782 2019 5 12 58615 0.0924 0.4403 -0.16894 2019 5 13 58616 0.0940 0.4409 -0.17021 2019 5 14 58617 0.0955 0.4415 -0.17163 2019 5 15 58618 0.0971 0.4421 -0.17315 2019 5 16 58619 0.0987 0.4426 -0.17467 2019 5 17 58620 0.1002 0.4432 -0.17609 2019 5 18 58621 0.1018 0.4437 -0.17732 2019 5 19 58622 0.1034 0.4441 -0.17829 2019 5 20 58623 0.1051 0.4446 -0.17902 2019 5 21 58624 0.1067 0.4450 -0.17953 2019 5 22 58625 0.1083 0.4454 -0.17990 2019 5 23 58626 0.1099 0.4458 -0.18020 2019 5 24 58627 0.1116 0.4461 -0.18049 2019 5 25 58628 0.1132 0.4465 -0.18081 2019 5 26 58629 0.1149 0.4468 -0.18120 2019 5 27 58630 0.1166 0.4470 -0.18167 2019 5 28 58631 0.1182 0.4473 -0.18221 2019 5 29 58632 0.1199 0.4475 -0.18281 2019 5 30 58633 0.1216 0.4477 -0.18343 2019 5 31 58634 0.1233 0.4478 -0.18402 2019 6 1 58635 0.1249 0.4480 -0.18453 2019 6 2 58636 0.1266 0.4481 -0.18491 2019 6 3 58637 0.1283 0.4482 -0.18513 2019 6 4 58638 0.1300 0.4482 -0.18518 2019 6 5 58639 0.1317 0.4483 -0.18508 2019 6 6 58640 0.1334 0.4483 -0.18488 2019 6 7 58641 0.1351 0.4483 -0.18466 2019 6 8 58642 0.1368 0.4482 -0.18454 2019 6 9 58643 0.1384 0.4481 -0.18458 2019 6 10 58644 0.1401 0.4480 -0.18481 2019 6 11 58645 0.1418 0.4479 -0.18521 2019 6 12 58646 0.1435 0.4478 -0.18568 2019 6 13 58647 0.1452 0.4476 -0.18611 2019 6 14 58648 0.1468 0.4474 -0.18639 2019 6 15 58649 0.1485 0.4472 -0.18646 2019 6 16 58650 0.1502 0.4469 -0.18633 2019 6 17 58651 0.1518 0.4466 -0.18603 2019 6 18 58652 0.1535 0.4463 -0.18560 2019 6 19 58653 0.1551 0.4460 -0.18506 2019 6 20 58654 0.1568 0.4456 -0.18447 2019 6 21 58655 0.1584 0.4452 -0.18389 2019 6 22 58656 0.1600 0.4448 -0.18334 2019 6 23 58657 0.1616 0.4444 -0.18291 2019 6 24 58658 0.1633 0.4439 -0.18261 2019 6 25 58659 0.1649 0.4434 -0.18240 2019 6 26 58660 0.1664 0.4429 -0.18222 2019 6 27 58661 0.1680 0.4424 -0.18208 2019 6 28 58662 0.1696 0.4418 -0.18196 2019 6 29 58663 0.1711 0.4412 -0.18182 2019 6 30 58664 0.1727 0.4406 -0.18156 2019 7 1 58665 0.1742 0.4400 -0.18114 2019 7 2 58666 0.1757 0.4393 -0.18057 2019 7 3 58667 0.1772 0.4386 -0.17992 2019 7 4 58668 0.1787 0.4379 -0.17931 2019 7 5 58669 0.1802 0.4372 -0.17888 2019 7 6 58670 0.1817 0.4364 -0.17868 2019 7 7 58671 0.1831 0.4356 -0.17871 2019 7 8 58672 0.1846 0.4348 -0.17891 2019 7 9 58673 0.1860 0.4340 -0.17917 2019 7 10 58674 0.1874 0.4331 -0.17938 2019 7 11 58675 0.1888 0.4323 -0.17944 2019 7 12 58676 0.1901 0.4314 -0.17930 2019 7 13 58677 0.1915 0.4305 -0.17897 2019 7 14 58678 0.1928 0.4295 -0.17843 2019 7 15 58679 0.1941 0.4286 -0.17764 2019 7 16 58680 0.1954 0.4276 -0.17678 2019 7 17 58681 0.1967 0.4266 -0.17590 2019 7 18 58682 0.1980 0.4256 -0.17503 2019 7 19 58683 0.1992 0.4246 -0.17429 2019 7 20 58684 0.2004 0.4235 -0.17363 2019 7 21 58685 0.2016 0.4224 -0.17303 2019 7 22 58686 0.2028 0.4213 -0.17257 2019 7 23 58687 0.2040 0.4202 -0.17225 2019 7 24 58688 0.2051 0.4191 -0.17199 2019 7 25 58689 0.2062 0.4179 -0.17175 2019 7 26 58690 0.2073 0.4168 -0.17150 2019 7 27 58691 0.2084 0.4156 -0.17122 2019 7 28 58692 0.2094 0.4144 -0.17085 2019 7 29 58693 0.2104 0.4132 -0.17040 2019 7 30 58694 0.2114 0.4119 -0.16993 2019 7 31 58695 0.2124 0.4107 -0.16951 2019 8 1 58696 0.2133 0.4094 -0.16922 2019 8 2 58697 0.2142 0.4081 -0.16917 2019 8 3 58698 0.2151 0.4068 -0.16939 2019 8 4 58699 0.2160 0.4055 -0.16987 2019 8 5 58700 0.2169 0.4042 -0.17050 2019 8 6 58701 0.2177 0.4029 -0.17117 2019 8 7 58702 0.2185 0.4015 -0.17175 2019 8 8 58703 0.2192 0.4002 -0.17213 2019 8 9 58704 0.2200 0.3988 -0.17236 2019 8 10 58705 0.2207 0.3974 -0.17250 2019 8 11 58706 0.2214 0.3960 -0.17254 2019 8 12 58707 0.2220 0.3946 -0.17252 2019 8 13 58708 0.2227 0.3932 -0.17252 2019 8 14 58709 0.2233 0.3918 -0.17256 2019 8 15 58710 0.2239 0.3903 -0.17267 2019 8 16 58711 0.2244 0.3889 -0.17284 2019 8 17 58712 0.2249 0.3874 -0.17303 2019 8 18 58713 0.2254 0.3859 -0.17331 2019 8 19 58714 0.2259 0.3845 -0.17367 2019 8 20 58715 0.2263 0.3830 -0.17400 2019 8 21 58716 0.2267 0.3815 -0.17431 2019 8 22 58717 0.2271 0.3800 -0.17454 2019 8 23 58718 0.2275 0.3785 -0.17470 2019 8 24 58719 0.2278 0.3770 -0.17476 2019 8 25 58720 0.2281 0.3755 -0.17466 2019 8 26 58721 0.2283 0.3740 -0.17448 2019 8 27 58722 0.2286 0.3725 -0.17424 2019 8 28 58723 0.2288 0.3710 -0.17407 2019 8 29 58724 0.2289 0.3694 -0.17403 2019 8 30 58725 0.2291 0.3679 -0.17419 2019 8 31 58726 0.2292 0.3664 -0.17457 2019 9 1 58727 0.2293 0.3649 -0.17519 2019 9 2 58728 0.2293 0.3633 -0.17591 2019 9 3 58729 0.2293 0.3618 -0.17650 2019 9 4 58730 0.2293 0.3603 -0.17695 2019 9 5 58731 0.2293 0.3587 -0.17716 2019 9 6 58732 0.2292 0.3572 -0.17718 2019 9 7 58733 0.2291 0.3557 -0.17708 2019 9 8 58734 0.2290 0.3541 -0.17680 2019 9 9 58735 0.2288 0.3526 -0.17648 2019 9 10 58736 0.2287 0.3511 -0.17621 2019 9 11 58737 0.2284 0.3496 -0.17612 2019 9 12 58738 0.2282 0.3480 -0.17616 2019 9 13 58739 0.2279 0.3465 -0.17642 2019 9 14 58740 0.2276 0.3450 -0.17686 2019 9 15 58741 0.2273 0.3435 -0.17746 2019 9 16 58742 0.2269 0.3420 -0.17811 2019 9 17 58743 0.2265 0.3405 -0.17883 2019 9 18 58744 0.2261 0.3390 -0.17958 2019 9 19 58745 0.2256 0.3375 -0.18029 2019 9 20 58746 0.2252 0.3361 -0.18088 2019 9 21 58747 0.2246 0.3346 -0.18141 2019 9 22 58748 0.2241 0.3331 -0.18187 2019 9 23 58749 0.2235 0.3317 -0.18228 2019 9 24 58750 0.2229 0.3302 -0.18273 2019 9 25 58751 0.2223 0.3288 -0.18336 2019 9 26 58752 0.2217 0.3274 -0.18420 2019 9 27 58753 0.2210 0.3260 -0.18529 2019 9 28 58754 0.2203 0.3246 -0.18666 2019 9 29 58755 0.2195 0.3232 -0.18826 2019 9 30 58756 0.2188 0.3218 -0.18984 2019 10 1 58757 0.2180 0.3204 -0.19131 2019 10 2 58758 0.2172 0.3191 -0.19260 2019 10 3 58759 0.2163 0.3177 -0.19366 2019 10 4 58760 0.2155 0.3164 -0.19451 2019 10 5 58761 0.2146 0.3151 -0.19529 2019 10 6 58762 0.2137 0.3138 -0.19604 2019 10 7 58763 0.2127 0.3125 -0.19682 2019 10 8 58764 0.2117 0.3113 -0.19768 2019 10 9 58765 0.2107 0.3100 -0.19866 2019 10 10 58766 0.2097 0.3088 -0.19975 2019 10 11 58767 0.2087 0.3075 -0.20094 2019 10 12 58768 0.2076 0.3063 -0.20224 2019 10 13 58769 0.2065 0.3052 -0.20363 2019 10 14 58770 0.2054 0.3040 -0.20503 2019 10 15 58771 0.2043 0.3028 -0.20637 2019 10 16 58772 0.2031 0.3017 -0.20761 2019 10 17 58773 0.2019 0.3006 -0.20874 2019 10 18 58774 0.2007 0.2995 -0.20977 2019 10 19 58775 0.1995 0.2984 -0.21065 2019 10 20 58776 0.1982 0.2973 -0.21146 2019 10 21 58777 0.1970 0.2963 -0.21226 2019 10 22 58778 0.1957 0.2953 -0.21308 2019 10 23 58779 0.1944 0.2943 -0.21400 2019 10 24 58780 0.1930 0.2933 -0.21512 2019 10 25 58781 0.1917 0.2924 -0.21654 2019 10 26 58782 0.1903 0.2914 -0.21818 2019 10 27 58783 0.1889 0.2905 -0.21991 2019 10 28 58784 0.1875 0.2896 -0.22156 2019 10 29 58785 0.1861 0.2887 -0.22306 2019 10 30 58786 0.1846 0.2879 -0.22440 2019 10 31 58787 0.1832 0.2871 -0.22557 2019 11 1 58788 0.1817 0.2863 -0.22653 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) 58397 -113.15 0.54 -10.03 0.29 58398 -113.09 0.52 -9.72 0.30 58399 -113.18 0.52 -9.64 0.30 58400 -113.23 0.33 -9.78 0.33 58401 -113.21 0.58 -9.92 0.33 58402 -113.15 0.58 -9.94 0.33 58403 -113.07 0.58 -9.90 0.33 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58397 0.202 0.217 0.295 0.294 58398 0.216 0.208 0.304 0.303 58399 0.227 0.208 0.312 0.303 58400 0.237 0.133 0.318 0.331 58401 0.250 0.232 0.322 0.326 58402 0.266 0.232 0.326 0.326 58403 0.283 0.232 0.328 0.326 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).