********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 20 December 2018 Vol. XXXI No. 051 ______________________________________________________________________ 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 = -0.1 seconds beginning 17 Jan 2019 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: * * 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 12 14 58466 0.12306 .00009 0.27001 .00009 -0.021501 0.000012 18 12 15 58467 0.12115 .00009 0.26952 .00009 -0.022196 0.000011 18 12 16 58468 0.11927 .00009 0.26898 .00009 -0.023008 0.000012 18 12 17 58469 0.11742 .00009 0.26847 .00009 -0.023940 0.000011 18 12 18 58470 0.11542 .00009 0.26799 .00009 -0.024963 0.000010 18 12 19 58471 0.11343 .00009 0.26747 .00009 -0.026005 0.000009 18 12 20 58472 0.11162 .00009 0.26702 .00009 -0.026946 0.000009 _______________________________________________________________________ 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 = 0.1205 - 0.0534 cos A - 0.0679 sin A + 0.0434 cos C - 0.0138 sin C y = 0.3475 - 0.0619 cos A + 0.0476 sin A - 0.0138 cos C - 0.0434 sin C UT1-UTC = -0.0400 - 0.00066 (MJD - 58480) - (UT2-UT1) where A = 2*pi*(MJD-58472)/365.25 and C = 2*pi*(MJD-58472)/435. TAI-UTC(MJD 58473) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58472)**0.80 S t = 0.00025 (MJD-58472)**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 12 21 58473 0.1099 0.2667 -0.02772 2018 12 22 58474 0.1083 0.2665 -0.02833 2018 12 23 58475 0.1067 0.2665 -0.02882 2018 12 24 58476 0.1051 0.2667 -0.02928 2018 12 25 58477 0.1034 0.2670 -0.02980 2018 12 26 58478 0.1017 0.2673 -0.03048 2018 12 27 58479 0.1000 0.2676 -0.03134 2018 12 28 58480 0.0984 0.2680 -0.03235 2018 12 29 58481 0.0968 0.2684 -0.03342 2018 12 30 58482 0.0952 0.2688 -0.03446 2018 12 31 58483 0.0936 0.2693 -0.03539 2019 1 1 58484 0.0921 0.2699 -0.03619 2019 1 2 58485 0.0905 0.2705 -0.03687 2019 1 3 58486 0.0889 0.2711 -0.03742 2019 1 4 58487 0.0873 0.2718 -0.03782 2019 1 5 58488 0.0857 0.2724 -0.03812 2019 1 6 58489 0.0841 0.2731 -0.03837 2019 1 7 58490 0.0825 0.2738 -0.03861 2019 1 8 58491 0.0809 0.2745 -0.03886 2019 1 9 58492 0.0794 0.2752 -0.03917 2019 1 10 58493 0.0779 0.2760 -0.03957 2019 1 11 58494 0.0764 0.2767 -0.04011 2019 1 12 58495 0.0749 0.2775 -0.04079 2019 1 13 58496 0.0735 0.2784 -0.04158 2019 1 14 58497 0.0720 0.2793 -0.04247 2019 1 15 58498 0.0706 0.2801 -0.04340 2019 1 16 58499 0.0693 0.2811 -0.04433 2019 1 17 58500 0.0679 0.2820 -0.04520 2019 1 18 58501 0.0665 0.2830 -0.04599 2019 1 19 58502 0.0652 0.2840 -0.04668 2019 1 20 58503 0.0639 0.2850 -0.04733 2019 1 21 58504 0.0627 0.2860 -0.04802 2019 1 22 58505 0.0614 0.2871 -0.04881 2019 1 23 58506 0.0602 0.2881 -0.04976 2019 1 24 58507 0.0589 0.2892 -0.05087 2019 1 25 58508 0.0578 0.2904 -0.05208 2019 1 26 58509 0.0566 0.2915 -0.05333 2019 1 27 58510 0.0554 0.2927 -0.05453 2019 1 28 58511 0.0543 0.2939 -0.05559 2019 1 29 58512 0.0532 0.2951 -0.05649 2019 1 30 58513 0.0521 0.2963 -0.05722 2019 1 31 58514 0.0511 0.2975 -0.05780 2019 2 1 58515 0.0500 0.2988 -0.05825 2019 2 2 58516 0.0490 0.3001 -0.05862 2019 2 3 58517 0.0480 0.3014 -0.05897 2019 2 4 58518 0.0471 0.3027 -0.05935 2019 2 5 58519 0.0462 0.3040 -0.05980 2019 2 6 58520 0.0453 0.3053 -0.06036 2019 2 7 58521 0.0444 0.3067 -0.06104 2019 2 8 58522 0.0435 0.3080 -0.06184 2019 2 9 58523 0.0427 0.3094 -0.06275 2019 2 10 58524 0.0419 0.3108 -0.06373 2019 2 11 58525 0.0412 0.3122 -0.06474 2019 2 12 58526 0.0404 0.3136 -0.06575 2019 2 13 58527 0.0397 0.3151 -0.06670 2019 2 14 58528 0.0390 0.3165 -0.06758 2019 2 15 58529 0.0384 0.3180 -0.06837 2019 2 16 58530 0.0377 0.3195 -0.06910 2019 2 17 58531 0.0371 0.3209 -0.06984 2019 2 18 58532 0.0366 0.3224 -0.07068 2019 2 19 58533 0.0360 0.3239 -0.07169 2019 2 20 58534 0.0355 0.3255 -0.07292 2019 2 21 58535 0.0350 0.3270 -0.07434 2019 2 22 58536 0.0346 0.3285 -0.07585 2019 2 23 58537 0.0341 0.3300 -0.07736 2019 2 24 58538 0.0338 0.3316 -0.07875 2019 2 25 58539 0.0334 0.3331 -0.07997 2019 2 26 58540 0.0331 0.3347 -0.08099 2019 2 27 58541 0.0327 0.3363 -0.08184 2019 2 28 58542 0.0325 0.3378 -0.08255 2019 3 1 58543 0.0322 0.3394 -0.08317 2019 3 2 58544 0.0320 0.3410 -0.08377 2019 3 3 58545 0.0318 0.3426 -0.08439 2019 3 4 58546 0.0317 0.3442 -0.08507 2019 3 5 58547 0.0316 0.3458 -0.08587 2019 3 6 58548 0.0315 0.3474 -0.08678 2019 3 7 58549 0.0314 0.3490 -0.08783 2019 3 8 58550 0.0314 0.3506 -0.08899 2019 3 9 58551 0.0314 0.3522 -0.09023 2019 3 10 58552 0.0314 0.3538 -0.09151 2019 3 11 58553 0.0315 0.3554 -0.09279 2019 3 12 58554 0.0315 0.3570 -0.09401 2019 3 13 58555 0.0317 0.3586 -0.09515 2019 3 14 58556 0.0318 0.3602 -0.09621 2019 3 15 58557 0.0320 0.3618 -0.09720 2019 3 16 58558 0.0322 0.3634 -0.09819 2019 3 17 58559 0.0325 0.3650 -0.09925 2019 3 18 58560 0.0327 0.3666 -0.10046 2019 3 19 58561 0.0330 0.3682 -0.10188 2019 3 20 58562 0.0334 0.3698 -0.10354 2019 3 21 58563 0.0337 0.3714 -0.10536 2019 3 22 58564 0.0341 0.3729 -0.10725 2019 3 23 58565 0.0345 0.3745 -0.10908 2019 3 24 58566 0.0350 0.3761 -0.11076 2019 3 25 58567 0.0355 0.3776 -0.11224 2019 3 26 58568 0.0360 0.3792 -0.11350 2019 3 27 58569 0.0365 0.3807 -0.11458 2019 3 28 58570 0.0371 0.3823 -0.11553 2019 3 29 58571 0.0377 0.3838 -0.11641 2019 3 30 58572 0.0383 0.3853 -0.11727 2019 3 31 58573 0.0390 0.3869 -0.11817 2019 4 1 58574 0.0397 0.3884 -0.11914 2019 4 2 58575 0.0404 0.3899 -0.12022 2019 4 3 58576 0.0411 0.3913 -0.12142 2019 4 4 58577 0.0419 0.3928 -0.12272 2019 4 5 58578 0.0427 0.3943 -0.12411 2019 4 6 58579 0.0435 0.3957 -0.12553 2019 4 7 58580 0.0444 0.3972 -0.12694 2019 4 8 58581 0.0453 0.3986 -0.12827 2019 4 9 58582 0.0462 0.4000 -0.12950 2019 4 10 58583 0.0471 0.4014 -0.13061 2019 4 11 58584 0.0480 0.4028 -0.13161 2019 4 12 58585 0.0490 0.4042 -0.13257 2019 4 13 58586 0.0500 0.4055 -0.13354 2019 4 14 58587 0.0511 0.4069 -0.13461 2019 4 15 58588 0.0521 0.4082 -0.13585 2019 4 16 58589 0.0532 0.4095 -0.13729 2019 4 17 58590 0.0543 0.4108 -0.13892 2019 4 18 58591 0.0554 0.4121 -0.14066 2019 4 19 58592 0.0566 0.4133 -0.14240 2019 4 20 58593 0.0578 0.4146 -0.14404 2019 4 21 58594 0.0590 0.4158 -0.14548 2019 4 22 58595 0.0602 0.4170 -0.14671 2019 4 23 58596 0.0614 0.4182 -0.14773 2019 4 24 58597 0.0627 0.4194 -0.14858 2019 4 25 58598 0.0640 0.4205 -0.14932 2019 4 26 58599 0.0653 0.4216 -0.15002 2019 4 27 58600 0.0666 0.4228 -0.15074 2019 4 28 58601 0.0680 0.4238 -0.15150 2019 4 29 58602 0.0694 0.4249 -0.15236 2019 4 30 58603 0.0707 0.4260 -0.15332 2019 5 1 58604 0.0721 0.4270 -0.15438 2019 5 2 58605 0.0736 0.4280 -0.15553 2019 5 3 58606 0.0750 0.4290 -0.15671 2019 5 4 58607 0.0765 0.4299 -0.15790 2019 5 5 58608 0.0780 0.4309 -0.15902 2019 5 6 58609 0.0795 0.4318 -0.16003 2019 5 7 58610 0.0810 0.4327 -0.16090 2019 5 8 58611 0.0825 0.4335 -0.16165 2019 5 9 58612 0.0840 0.4344 -0.16230 2019 5 10 58613 0.0856 0.4352 -0.16292 2019 5 11 58614 0.0872 0.4360 -0.16360 2019 5 12 58615 0.0888 0.4368 -0.16440 2019 5 13 58616 0.0904 0.4375 -0.16537 2019 5 14 58617 0.0920 0.4383 -0.16650 2019 5 15 58618 0.0936 0.4390 -0.16775 2019 5 16 58619 0.0952 0.4396 -0.16904 2019 5 17 58620 0.0969 0.4403 -0.17026 2019 5 18 58621 0.0986 0.4409 -0.17132 2019 5 19 58622 0.1002 0.4415 -0.17218 2019 5 20 58623 0.1019 0.4421 -0.17282 2019 5 21 58624 0.1036 0.4426 -0.17327 2019 5 22 58625 0.1053 0.4431 -0.17358 2019 5 23 58626 0.1070 0.4436 -0.17382 2019 5 24 58627 0.1087 0.4441 -0.17404 2019 5 25 58628 0.1105 0.4445 -0.17429 2019 5 26 58629 0.1122 0.4449 -0.17462 2019 5 27 58630 0.1139 0.4453 -0.17504 2019 5 28 58631 0.1157 0.4457 -0.17556 2019 5 29 58632 0.1174 0.4460 -0.17615 2019 5 30 58633 0.1192 0.4463 -0.17680 2019 5 31 58634 0.1210 0.4466 -0.17747 2019 6 1 58635 0.1227 0.4468 -0.17810 2019 6 2 58636 0.1245 0.4470 -0.17864 2019 6 3 58637 0.1263 0.4472 -0.17904 2019 6 4 58638 0.1280 0.4474 -0.17931 2019 6 5 58639 0.1298 0.4475 -0.17946 2019 6 6 58640 0.1316 0.4476 -0.17956 2019 6 7 58641 0.1334 0.4477 -0.17969 2019 6 8 58642 0.1351 0.4478 -0.17992 2019 6 9 58643 0.1369 0.4478 -0.18031 2019 6 10 58644 0.1387 0.4478 -0.18084 2019 6 11 58645 0.1405 0.4477 -0.18149 2019 6 12 58646 0.1422 0.4477 -0.18218 2019 6 13 58647 0.1440 0.4476 -0.18282 2019 6 14 58648 0.1458 0.4475 -0.18334 2019 6 15 58649 0.1475 0.4473 -0.18368 2019 6 16 58650 0.1493 0.4472 -0.18381 2019 6 17 58651 0.1511 0.4470 -0.18375 2019 6 18 58652 0.1528 0.4467 -0.18355 2019 6 19 58653 0.1546 0.4465 -0.18327 2019 6 20 58654 0.1563 0.4462 -0.18295 2019 6 21 58655 0.1580 0.4459 -0.18267 2019 6 22 58656 0.1598 0.4455 -0.18246 2019 6 23 58657 0.1615 0.4452 -0.18235 2019 6 24 58658 0.1632 0.4448 -0.18235 2019 6 25 58659 0.1649 0.4444 -0.18246 2019 6 26 58660 0.1666 0.4439 -0.18266 2019 6 27 58661 0.1683 0.4435 -0.18290 2019 6 28 58662 0.1699 0.4430 -0.18316 2019 6 29 58663 0.1716 0.4424 -0.18337 2019 6 30 58664 0.1733 0.4419 -0.18350 2019 7 1 58665 0.1749 0.4413 -0.18349 2019 7 2 58666 0.1765 0.4407 -0.18336 2019 7 3 58667 0.1781 0.4401 -0.18313 2019 7 4 58668 0.1797 0.4394 -0.18287 2019 7 5 58669 0.1813 0.4387 -0.18267 2019 7 6 58670 0.1829 0.4380 -0.18259 2019 7 7 58671 0.1844 0.4373 -0.18264 2019 7 8 58672 0.1860 0.4365 -0.18280 2019 7 9 58673 0.1875 0.4357 -0.18300 2019 7 10 58674 0.1890 0.4349 -0.18317 2019 7 11 58675 0.1905 0.4341 -0.18326 2019 7 12 58676 0.1920 0.4332 -0.18323 2019 7 13 58677 0.1935 0.4324 -0.18306 2019 7 14 58678 0.1949 0.4315 -0.18277 2019 7 15 58679 0.1963 0.4305 -0.18239 2019 7 16 58680 0.1977 0.4296 -0.18197 2019 7 17 58681 0.1991 0.4286 -0.18155 2019 7 18 58682 0.2005 0.4276 -0.18120 2019 7 19 58683 0.2018 0.4266 -0.18094 2019 7 20 58684 0.2032 0.4256 -0.18079 2019 7 21 58685 0.2045 0.4245 -0.18077 2019 7 22 58686 0.2058 0.4234 -0.18085 2019 7 23 58687 0.2070 0.4223 -0.18104 2019 7 24 58688 0.2083 0.4212 -0.18128 2019 7 25 58689 0.2095 0.4201 -0.18154 2019 7 26 58690 0.2107 0.4189 -0.18176 2019 7 27 58691 0.2119 0.4177 -0.18190 2019 7 28 58692 0.2130 0.4165 -0.18191 2019 7 29 58693 0.2141 0.4153 -0.18180 2019 7 30 58694 0.2152 0.4141 -0.18164 2019 7 31 58695 0.2163 0.4128 -0.18152 2019 8 1 58696 0.2174 0.4116 -0.18146 2019 8 2 58697 0.2184 0.4103 -0.18153 2019 8 3 58698 0.2194 0.4090 -0.18180 2019 8 4 58699 0.2204 0.4077 -0.18228 2019 8 5 58700 0.2213 0.4063 -0.18283 2019 8 6 58701 0.2223 0.4050 -0.18330 2019 8 7 58702 0.2232 0.4036 -0.18362 2019 8 8 58703 0.2240 0.4022 -0.18380 2019 8 9 58704 0.2249 0.4008 -0.18372 2019 8 10 58705 0.2257 0.3994 -0.18347 2019 8 11 58706 0.2265 0.3980 -0.18303 2019 8 12 58707 0.2272 0.3966 -0.18251 2019 8 13 58708 0.2280 0.3951 -0.18199 2019 8 14 58709 0.2287 0.3937 -0.18151 2019 8 15 58710 0.2294 0.3922 -0.18115 2019 8 16 58711 0.2300 0.3907 -0.18087 2019 8 17 58712 0.2306 0.3892 -0.18074 2019 8 18 58713 0.2312 0.3877 -0.18080 2019 8 19 58714 0.2318 0.3862 -0.18096 2019 8 20 58715 0.2323 0.3847 -0.18120 2019 8 21 58716 0.2328 0.3831 -0.18150 2019 8 22 58717 0.2333 0.3816 -0.18182 2019 8 23 58718 0.2337 0.3801 -0.18209 2019 8 24 58719 0.2342 0.3785 -0.18228 2019 8 25 58720 0.2345 0.3769 -0.18240 2019 8 26 58721 0.2349 0.3754 -0.18245 2019 8 27 58722 0.2352 0.3738 -0.18246 2019 8 28 58723 0.2355 0.3722 -0.18255 2019 8 29 58724 0.2358 0.3706 -0.18287 2019 8 30 58725 0.2360 0.3690 -0.18341 2019 8 31 58726 0.2362 0.3674 -0.18420 2019 9 1 58727 0.2364 0.3658 -0.18516 2019 9 2 58728 0.2365 0.3642 -0.18621 2019 9 3 58729 0.2366 0.3626 -0.18712 2019 9 4 58730 0.2367 0.3610 -0.18784 2019 9 5 58731 0.2367 0.3594 -0.18832 2019 9 6 58732 0.2368 0.3578 -0.18855 2019 9 7 58733 0.2367 0.3562 -0.18858 2019 9 8 58734 0.2367 0.3546 -0.18845 2019 9 9 58735 0.2366 0.3530 -0.18830 2019 9 10 58736 0.2365 0.3514 -0.18818 2019 9 11 58737 0.2364 0.3498 -0.18807 2019 9 12 58738 0.2362 0.3482 -0.18796 2019 9 13 58739 0.2360 0.3465 -0.18794 2019 9 14 58740 0.2358 0.3449 -0.18808 2019 9 15 58741 0.2355 0.3433 -0.18833 2019 9 16 58742 0.2352 0.3418 -0.18869 2019 9 17 58743 0.2349 0.3402 -0.18916 2019 9 18 58744 0.2345 0.3386 -0.18965 2019 9 19 58745 0.2341 0.3370 -0.19008 2019 9 20 58746 0.2337 0.3354 -0.19043 2019 9 21 58747 0.2333 0.3338 -0.19065 2019 9 22 58748 0.2328 0.3323 -0.19080 2019 9 23 58749 0.2323 0.3307 -0.19096 2019 9 24 58750 0.2318 0.3292 -0.19116 2019 9 25 58751 0.2312 0.3276 -0.19147 2019 9 26 58752 0.2306 0.3261 -0.19199 2019 9 27 58753 0.2300 0.3246 -0.19276 2019 9 28 58754 0.2293 0.3231 -0.19373 2019 9 29 58755 0.2287 0.3216 -0.19489 2019 9 30 58756 0.2279 0.3201 -0.19610 2019 10 1 58757 0.2272 0.3186 -0.19721 2019 10 2 58758 0.2264 0.3171 -0.19807 2019 10 3 58759 0.2257 0.3157 -0.19871 2019 10 4 58760 0.2248 0.3142 -0.19917 2019 10 5 58761 0.2240 0.3128 -0.19951 2019 10 6 58762 0.2231 0.3114 -0.19976 2019 10 7 58763 0.2222 0.3100 -0.19996 2019 10 8 58764 0.2213 0.3086 -0.20017 2019 10 9 58765 0.2203 0.3072 -0.20045 2019 10 10 58766 0.2193 0.3058 -0.20088 2019 10 11 58767 0.2183 0.3045 -0.20150 2019 10 12 58768 0.2173 0.3031 -0.20229 2019 10 13 58769 0.2162 0.3018 -0.20321 2019 10 14 58770 0.2152 0.3005 -0.20421 2019 10 15 58771 0.2141 0.2992 -0.20521 2019 10 16 58772 0.2129 0.2980 -0.20613 2019 10 17 58773 0.2118 0.2967 -0.20693 2019 10 18 58774 0.2106 0.2955 -0.20759 2019 10 19 58775 0.2094 0.2943 -0.20814 2019 10 20 58776 0.2082 0.2931 -0.20860 2019 10 21 58777 0.2069 0.2919 -0.20895 2019 10 22 58778 0.2057 0.2908 -0.20941 2019 10 23 58779 0.2044 0.2896 -0.21004 2019 10 24 58780 0.2030 0.2885 -0.21088 2019 10 25 58781 0.2017 0.2874 -0.21202 2019 10 26 58782 0.2004 0.2863 -0.21335 2019 10 27 58783 0.1990 0.2853 -0.21470 2019 10 28 58784 0.1976 0.2843 -0.21606 2019 10 29 58785 0.1962 0.2833 -0.21732 2019 10 30 58786 0.1948 0.2823 -0.21835 2019 10 31 58787 0.1933 0.2813 -0.21915 2019 11 1 58788 0.1918 0.2804 -0.21977 2019 11 2 58789 0.1903 0.2795 -0.22030 2019 11 3 58790 0.1888 0.2786 -0.22078 2019 11 4 58791 0.1873 0.2777 -0.22128 2019 11 5 58792 0.1858 0.2768 -0.22190 2019 11 6 58793 0.1842 0.2760 -0.22265 2019 11 7 58794 0.1827 0.2752 -0.22355 2019 11 8 58795 0.1811 0.2745 -0.22460 2019 11 9 58796 0.1795 0.2737 -0.22579 2019 11 10 58797 0.1779 0.2730 -0.22708 2019 11 11 58798 0.1763 0.2723 -0.22842 2019 11 12 58799 0.1746 0.2716 -0.22974 2019 11 13 58800 0.1730 0.2710 -0.23096 2019 11 14 58801 0.1713 0.2704 -0.23205 2019 11 15 58802 0.1697 0.2698 -0.23304 2019 11 16 58803 0.1680 0.2692 -0.23403 2019 11 17 58804 0.1663 0.2687 -0.23503 2019 11 18 58805 0.1646 0.2682 -0.23609 2019 11 19 58806 0.1629 0.2677 -0.23732 2019 11 20 58807 0.1612 0.2672 -0.23875 2019 11 21 58808 0.1594 0.2668 -0.24038 2019 11 22 58809 0.1577 0.2664 -0.24215 2019 11 23 58810 0.1560 0.2660 -0.24394 2019 11 24 58811 0.1542 0.2657 -0.24571 2019 11 25 58812 0.1525 0.2654 -0.24735 2019 11 26 58813 0.1507 0.2651 -0.24871 2019 11 27 58814 0.1489 0.2648 -0.24978 2019 11 28 58815 0.1472 0.2646 -0.25057 2019 11 29 58816 0.1454 0.2644 -0.25117 2019 11 30 58817 0.1436 0.2642 -0.25166 2019 12 1 58818 0.1418 0.2641 -0.25206 2019 12 2 58819 0.1401 0.2639 -0.25247 2019 12 3 58820 0.1383 0.2639 -0.25292 2019 12 4 58821 0.1365 0.2638 -0.25346 2019 12 5 58822 0.1347 0.2638 -0.25406 2019 12 6 58823 0.1329 0.2638 -0.25469 2019 12 7 58824 0.1311 0.2638 -0.25535 2019 12 8 58825 0.1293 0.2638 -0.25607 2019 12 9 58826 0.1276 0.2639 -0.25678 2019 12 10 58827 0.1258 0.2640 -0.25733 2019 12 11 58828 0.1240 0.2642 -0.25779 2019 12 12 58829 0.1222 0.2643 -0.25808 2019 12 13 58830 0.1205 0.2645 -0.25829 2019 12 14 58831 0.1187 0.2648 -0.25848 2019 12 15 58832 0.1169 0.2650 -0.25860 2019 12 16 58833 0.1152 0.2653 -0.25883 2019 12 17 58834 0.1134 0.2656 -0.25926 2019 12 18 58835 0.1117 0.2660 -0.25998 2019 12 19 58836 0.1099 0.2663 -0.26091 2019 12 20 58837 0.1082 0.2667 -0.26204 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) 58444 -108.85 0.77 -7.66 0.09 58445 -108.78 0.77 -7.81 0.09 58446 -108.66 0.59 -8.10 0.12 58447 -108.49 0.32 -8.27 0.16 58448 -108.27 0.32 -8.17 0.16 58449 -108.04 0.32 -7.88 0.16 58450 -107.85 1.03 -7.63 0.11 58451 -107.68 1.03 -7.55 0.11 58452 -107.50 1.03 -7.59 0.11 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58444 0.305 0.305 0.080 0.086 58445 0.312 0.305 0.075 0.086 58446 0.320 0.236 0.074 0.119 58447 0.330 0.128 0.075 0.160 58448 0.342 0.128 0.077 0.160 58449 0.355 0.128 0.082 0.160 58450 0.369 0.409 0.087 0.111 58451 0.383 0.409 0.093 0.111 58452 0.398 0.409 0.100 0.111 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).