********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 7 February 2019 Vol. XXXII No. 006 ______________________________________________________________________ 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 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 19 2 1 58515 0.04986 .00009 0.30625 .00009 -0.061179 0.000015 19 2 2 58516 0.04892 .00009 0.30841 .00009 -0.061663 0.000017 19 2 3 58517 0.04756 .00009 0.31031 .00009 -0.062115 0.000018 19 2 4 58518 0.04606 .00009 0.31166 .00009 -0.062644 0.000015 19 2 5 58519 0.04485 .00009 0.31275 .00009 -0.063310 0.000014 19 2 6 58520 0.04390 .00009 0.31384 .00009 -0.064077 0.000014 19 2 7 58521 0.04301 .00009 0.31498 .00009 -0.064990 0.000012 IERS Final Values MJD x y UT1-UTC " " s 18 12 2 58454 0.1462 0.2735 -0.01380 18 12 3 58455 0.1437 0.2729 -0.01503 18 12 4 58456 0.1419 0.2723 -0.01616 18 12 5 58457 0.1397 0.2721 -0.01702 18 12 6 58458 0.1372 0.2718 -0.01773 18 12 7 58459 0.1347 0.2715 -0.01830 18 12 8 58460 0.1329 0.2710 -0.01875 18 12 9 58461 0.1318 0.2708 -0.01915 18 12 10 58462 0.1303 0.2710 -0.01957 18 12 11 58463 0.1287 0.2711 -0.01993 18 12 12 58464 0.1269 0.2710 -0.02039 18 12 13 58465 0.1248 0.2705 -0.02092 18 12 14 58466 0.1232 0.2700 -0.02154 18 12 15 58467 0.1211 0.2696 -0.02224 18 12 16 58468 0.1192 0.2690 -0.02304 18 12 17 58469 0.1175 0.2685 -0.02397 18 12 18 58470 0.1154 0.2680 -0.02501 18 12 19 58471 0.1133 0.2674 -0.02605 18 12 20 58472 0.1116 0.2670 -0.02695 18 12 21 58473 0.1099 0.2668 -0.02769 18 12 22 58474 0.1078 0.2665 -0.02826 18 12 23 58475 0.1058 0.2665 -0.02873 18 12 24 58476 0.1036 0.2666 -0.02918 18 12 25 58477 0.1014 0.2667 -0.02971 18 12 26 58478 0.0992 0.2673 -0.03034 18 12 27 58479 0.0972 0.2681 -0.03112 18 12 28 58480 0.0954 0.2689 -0.03206 18 12 29 58481 0.0933 0.2698 -0.03308 18 12 30 58482 0.0908 0.2705 -0.03414 18 12 31 58483 0.0884 0.2708 -0.03520 19 1 1 58484 0.0864 0.2711 -0.03618 _______________________________________________________________________ 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 = 0.1216 - 0.0960 cos A - 0.0150 sin A + 0.0261 cos C - 0.0256 sin C y = 0.3588 - 0.0136 cos A + 0.0863 sin A - 0.0256 cos C - 0.0261 sin C UT1-UTC = -0.0842 - 0.00065 (MJD - 58529) - (UT2-UT1) where A = 2*pi*(MJD-58521)/365.25 and C = 2*pi*(MJD-58521)/435. TAI-UTC(MJD 58522) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58521)**0.80 S t = 0.00025 (MJD-58521)**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) 2019 2 8 58522 0.0422 0.3162 -0.06602 2019 2 9 58523 0.0415 0.3174 -0.06717 2019 2 10 58524 0.0408 0.3187 -0.06840 2019 2 11 58525 0.0400 0.3200 -0.06967 2019 2 12 58526 0.0393 0.3213 -0.07095 2019 2 13 58527 0.0387 0.3225 -0.07220 2019 2 14 58528 0.0382 0.3238 -0.07343 2019 2 15 58529 0.0377 0.3251 -0.07461 2019 2 16 58530 0.0373 0.3264 -0.07572 2019 2 17 58531 0.0369 0.3277 -0.07680 2019 2 18 58532 0.0365 0.3291 -0.07795 2019 2 19 58533 0.0361 0.3305 -0.07925 2019 2 20 58534 0.0358 0.3319 -0.08076 2019 2 21 58535 0.0355 0.3334 -0.08244 2019 2 22 58536 0.0353 0.3348 -0.08418 2019 2 23 58537 0.0350 0.3363 -0.08591 2019 2 24 58538 0.0348 0.3377 -0.08753 2019 2 25 58539 0.0346 0.3392 -0.08900 2019 2 26 58540 0.0344 0.3407 -0.09027 2019 2 27 58541 0.0342 0.3422 -0.09136 2019 2 28 58542 0.0341 0.3436 -0.09231 2019 3 1 58543 0.0340 0.3451 -0.09317 2019 3 2 58544 0.0339 0.3465 -0.09398 2019 3 3 58545 0.0338 0.3480 -0.09480 2019 3 4 58546 0.0338 0.3494 -0.09566 2019 3 5 58547 0.0338 0.3509 -0.09659 2019 3 6 58548 0.0339 0.3523 -0.09763 2019 3 7 58549 0.0339 0.3538 -0.09879 2019 3 8 58550 0.0340 0.3552 -0.10006 2019 3 9 58551 0.0341 0.3567 -0.10141 2019 3 10 58552 0.0343 0.3581 -0.10279 2019 3 11 58553 0.0345 0.3595 -0.10415 2019 3 12 58554 0.0347 0.3610 -0.10544 2019 3 13 58555 0.0349 0.3624 -0.10663 2019 3 14 58556 0.0352 0.3638 -0.10772 2019 3 15 58557 0.0355 0.3653 -0.10872 2019 3 16 58558 0.0359 0.3667 -0.10970 2019 3 17 58559 0.0362 0.3681 -0.11073 2019 3 18 58560 0.0366 0.3695 -0.11191 2019 3 19 58561 0.0371 0.3709 -0.11330 2019 3 20 58562 0.0375 0.3723 -0.11491 2019 3 21 58563 0.0380 0.3737 -0.11668 2019 3 22 58564 0.0385 0.3751 -0.11851 2019 3 23 58565 0.0390 0.3765 -0.12027 2019 3 24 58566 0.0396 0.3779 -0.12187 2019 3 25 58567 0.0402 0.3793 -0.12327 2019 3 26 58568 0.0408 0.3806 -0.12446 2019 3 27 58569 0.0414 0.3820 -0.12548 2019 3 28 58570 0.0421 0.3833 -0.12638 2019 3 29 58571 0.0428 0.3847 -0.12723 2019 3 30 58572 0.0435 0.3860 -0.12808 2019 3 31 58573 0.0443 0.3873 -0.12897 2019 4 1 58574 0.0450 0.3886 -0.12995 2019 4 2 58575 0.0458 0.3899 -0.13104 2019 4 3 58576 0.0467 0.3912 -0.13225 2019 4 4 58577 0.0475 0.3925 -0.13356 2019 4 5 58578 0.0484 0.3937 -0.13495 2019 4 6 58579 0.0493 0.3950 -0.13637 2019 4 7 58580 0.0502 0.3962 -0.13777 2019 4 8 58581 0.0512 0.3974 -0.13910 2019 4 9 58582 0.0522 0.3986 -0.14031 2019 4 10 58583 0.0532 0.3998 -0.14141 2019 4 11 58584 0.0542 0.4010 -0.14241 2019 4 12 58585 0.0552 0.4021 -0.14335 2019 4 13 58586 0.0563 0.4033 -0.14431 2019 4 14 58587 0.0574 0.4044 -0.14536 2019 4 15 58588 0.0585 0.4055 -0.14657 2019 4 16 58589 0.0596 0.4066 -0.14798 2019 4 17 58590 0.0608 0.4077 -0.14956 2019 4 18 58591 0.0620 0.4087 -0.15126 2019 4 19 58592 0.0632 0.4098 -0.15295 2019 4 20 58593 0.0644 0.4108 -0.15454 2019 4 21 58594 0.0657 0.4118 -0.15594 2019 4 22 58595 0.0669 0.4128 -0.15711 2019 4 23 58596 0.0682 0.4137 -0.15808 2019 4 24 58597 0.0695 0.4147 -0.15888 2019 4 25 58598 0.0708 0.4156 -0.15957 2019 4 26 58599 0.0722 0.4165 -0.16022 2019 4 27 58600 0.0735 0.4174 -0.16088 2019 4 28 58601 0.0749 0.4183 -0.16159 2019 4 29 58602 0.0763 0.4191 -0.16238 2019 4 30 58603 0.0777 0.4200 -0.16328 2019 5 1 58604 0.0791 0.4208 -0.16427 2019 5 2 58605 0.0806 0.4216 -0.16534 2019 5 3 58606 0.0820 0.4223 -0.16645 2019 5 4 58607 0.0835 0.4231 -0.16755 2019 5 5 58608 0.0850 0.4238 -0.16859 2019 5 6 58609 0.0865 0.4245 -0.16953 2019 5 7 58610 0.0880 0.4252 -0.17032 2019 5 8 58611 0.0895 0.4258 -0.17098 2019 5 9 58612 0.0910 0.4264 -0.17155 2019 5 10 58613 0.0926 0.4270 -0.17209 2019 5 11 58614 0.0942 0.4276 -0.17268 2019 5 12 58615 0.0957 0.4282 -0.17340 2019 5 13 58616 0.0973 0.4287 -0.17428 2019 5 14 58617 0.0989 0.4292 -0.17533 2019 5 15 58618 0.1005 0.4297 -0.17651 2019 5 16 58619 0.1021 0.4302 -0.17772 2019 5 17 58620 0.1038 0.4306 -0.17887 2019 5 18 58621 0.1054 0.4310 -0.17986 2019 5 19 58622 0.1070 0.4314 -0.18066 2019 5 20 58623 0.1087 0.4318 -0.18124 2019 5 21 58624 0.1103 0.4321 -0.18163 2019 5 22 58625 0.1120 0.4324 -0.18189 2019 5 23 58626 0.1137 0.4327 -0.18208 2019 5 24 58627 0.1153 0.4330 -0.18225 2019 5 25 58628 0.1170 0.4332 -0.18247 2019 5 26 58629 0.1187 0.4334 -0.18276 2019 5 27 58630 0.1204 0.4336 -0.18316 2019 5 28 58631 0.1221 0.4338 -0.18365 2019 5 29 58632 0.1238 0.4339 -0.18423 2019 5 30 58633 0.1255 0.4340 -0.18487 2019 5 31 58634 0.1272 0.4341 -0.18551 2019 6 1 58635 0.1289 0.4341 -0.18613 2019 6 2 58636 0.1306 0.4342 -0.18665 2019 6 3 58637 0.1323 0.4342 -0.18704 2019 6 4 58638 0.1340 0.4341 -0.18729 2019 6 5 58639 0.1357 0.4341 -0.18743 2019 6 6 58640 0.1374 0.4340 -0.18753 2019 6 7 58641 0.1391 0.4339 -0.18765 2019 6 8 58642 0.1408 0.4338 -0.18788 2019 6 9 58643 0.1425 0.4336 -0.18826 2019 6 10 58644 0.1441 0.4335 -0.18880 2019 6 11 58645 0.1458 0.4332 -0.18945 2019 6 12 58646 0.1475 0.4330 -0.19014 2019 6 13 58647 0.1492 0.4328 -0.19079 2019 6 14 58648 0.1509 0.4325 -0.19131 2019 6 15 58649 0.1525 0.4322 -0.19165 2019 6 16 58650 0.1542 0.4318 -0.19179 2019 6 17 58651 0.1558 0.4315 -0.19174 2019 6 18 58652 0.1575 0.4311 -0.19153 2019 6 19 58653 0.1591 0.4307 -0.19124 2019 6 20 58654 0.1608 0.4302 -0.19092 2019 6 21 58655 0.1624 0.4298 -0.19062 2019 6 22 58656 0.1640 0.4293 -0.19038 2019 6 23 58657 0.1656 0.4288 -0.19023 2019 6 24 58658 0.1672 0.4283 -0.19018 2019 6 25 58659 0.1688 0.4277 -0.19022 2019 6 26 58660 0.1703 0.4271 -0.19032 2019 6 27 58661 0.1719 0.4265 -0.19046 2019 6 28 58662 0.1734 0.4259 -0.19058 2019 6 29 58663 0.1750 0.4252 -0.19065 2019 6 30 58664 0.1765 0.4245 -0.19062 2019 7 1 58665 0.1780 0.4238 -0.19047 2019 7 2 58666 0.1795 0.4231 -0.19021 2019 7 3 58667 0.1810 0.4223 -0.18988 2019 7 4 58668 0.1824 0.4216 -0.18957 2019 7 5 58669 0.1839 0.4208 -0.18937 2019 7 6 58670 0.1853 0.4200 -0.18934 2019 7 7 58671 0.1867 0.4191 -0.18948 2019 7 8 58672 0.1881 0.4183 -0.18976 2019 7 9 58673 0.1895 0.4174 -0.19010 2019 7 10 58674 0.1908 0.4165 -0.19040 2019 7 11 58675 0.1922 0.4155 -0.19059 2019 7 12 58676 0.1935 0.4146 -0.19062 2019 7 13 58677 0.1948 0.4136 -0.19045 2019 7 14 58678 0.1961 0.4126 -0.19011 2019 7 15 58679 0.1974 0.4116 -0.18963 2019 7 16 58680 0.1986 0.4106 -0.18907 2019 7 17 58681 0.1998 0.4095 -0.18847 2019 7 18 58682 0.2010 0.4085 -0.18791 2019 7 19 58683 0.2022 0.4074 -0.18741 2019 7 20 58684 0.2034 0.4063 -0.18702 2019 7 21 58685 0.2045 0.4052 -0.18673 2019 7 22 58686 0.2057 0.4040 -0.18656 2019 7 23 58687 0.2068 0.4029 -0.18647 2019 7 24 58688 0.2078 0.4017 -0.18644 2019 7 25 58689 0.2089 0.4005 -0.18642 2019 7 26 58690 0.2099 0.3993 -0.18637 2019 7 27 58691 0.2109 0.3981 -0.18627 2019 7 28 58692 0.2119 0.3968 -0.18607 2019 7 29 58693 0.2128 0.3956 -0.18578 2019 7 30 58694 0.2138 0.3943 -0.18542 2019 7 31 58695 0.2147 0.3930 -0.18507 2019 8 1 58696 0.2155 0.3917 -0.18481 2019 8 2 58697 0.2164 0.3904 -0.18474 2019 8 3 58698 0.2172 0.3891 -0.18488 2019 8 4 58699 0.2180 0.3877 -0.18521 2019 8 5 58700 0.2188 0.3864 -0.18565 2019 8 6 58701 0.2195 0.3850 -0.18608 2019 8 7 58702 0.2202 0.3836 -0.18640 2019 8 8 58703 0.2209 0.3822 -0.18654 2019 8 9 58704 0.2216 0.3808 -0.18647 2019 8 10 58705 0.2222 0.3794 -0.18620 2019 8 11 58706 0.2228 0.3780 -0.18577 2019 8 12 58707 0.2234 0.3766 -0.18523 2019 8 13 58708 0.2240 0.3751 -0.18463 2019 8 14 58709 0.2245 0.3737 -0.18404 2019 8 15 58710 0.2250 0.3722 -0.18350 2019 8 16 58711 0.2254 0.3707 -0.18306 2019 8 17 58712 0.2259 0.3693 -0.18274 2019 8 18 58713 0.2263 0.3678 -0.18254 2019 8 19 58714 0.2266 0.3663 -0.18246 2019 8 20 58715 0.2270 0.3648 -0.18248 2019 8 21 58716 0.2273 0.3633 -0.18255 2019 8 22 58717 0.2276 0.3618 -0.18264 2019 8 23 58718 0.2279 0.3603 -0.18272 2019 8 24 58719 0.2281 0.3588 -0.18276 2019 8 25 58720 0.2283 0.3573 -0.18276 2019 8 26 58721 0.2284 0.3557 -0.18274 2019 8 27 58722 0.2286 0.3542 -0.18275 2019 8 28 58723 0.2287 0.3527 -0.18287 2019 8 29 58724 0.2288 0.3512 -0.18318 2019 8 30 58725 0.2288 0.3496 -0.18376 2019 8 31 58726 0.2288 0.3481 -0.18461 2019 9 1 58727 0.2288 0.3466 -0.18567 2019 9 2 58728 0.2288 0.3450 -0.18682 2019 9 3 58729 0.2287 0.3435 -0.18794 2019 9 4 58730 0.2286 0.3420 -0.18892 2019 9 5 58731 0.2284 0.3404 -0.18973 2019 9 6 58732 0.2283 0.3389 -0.19037 2019 9 7 58733 0.2281 0.3374 -0.19086 2019 9 8 58734 0.2278 0.3358 -0.19127 2019 9 9 58735 0.2276 0.3343 -0.19164 2019 9 10 58736 0.2273 0.3328 -0.19200 2019 9 11 58737 0.2270 0.3313 -0.19241 2019 9 12 58738 0.2266 0.3298 -0.19291 2019 9 13 58739 0.2263 0.3283 -0.19353 2019 9 14 58740 0.2258 0.3268 -0.19430 2019 9 15 58741 0.2254 0.3253 -0.19518 2019 9 16 58742 0.2249 0.3238 -0.19611 2019 9 17 58743 0.2244 0.3223 -0.19704 2019 9 18 58744 0.2239 0.3208 -0.19792 2019 9 19 58745 0.2234 0.3193 -0.19870 2019 9 20 58746 0.2228 0.3179 -0.19941 2019 9 21 58747 0.2222 0.3164 -0.20006 2019 9 22 58748 0.2215 0.3150 -0.20067 2019 9 23 58749 0.2208 0.3136 -0.20124 2019 9 24 58750 0.2201 0.3121 -0.20176 2019 9 25 58751 0.2194 0.3107 -0.20236 2019 9 26 58752 0.2187 0.3093 -0.20309 2019 9 27 58753 0.2179 0.3079 -0.20403 2019 9 28 58754 0.2171 0.3066 -0.20516 2019 9 29 58755 0.2162 0.3052 -0.20636 2019 9 30 58756 0.2154 0.3038 -0.20758 2019 10 1 58757 0.2145 0.3025 -0.20867 2019 10 2 58758 0.2135 0.3012 -0.20959 2019 10 3 58759 0.2126 0.2999 -0.21030 2019 10 4 58760 0.2116 0.2986 -0.21083 2019 10 5 58761 0.2106 0.2973 -0.21124 2019 10 6 58762 0.2096 0.2960 -0.21147 2019 10 7 58763 0.2086 0.2947 -0.21167 2019 10 8 58764 0.2075 0.2935 -0.21196 2019 10 9 58765 0.2064 0.2923 -0.21234 2019 10 10 58766 0.2053 0.2911 -0.21290 2019 10 11 58767 0.2041 0.2899 -0.21363 2019 10 12 58768 0.2030 0.2887 -0.21454 2019 10 13 58769 0.2018 0.2876 -0.21559 2019 10 14 58770 0.2005 0.2864 -0.21673 2019 10 15 58771 0.1993 0.2853 -0.21785 2019 10 16 58772 0.1980 0.2842 -0.21891 2019 10 17 58773 0.1968 0.2831 -0.21992 2019 10 18 58774 0.1955 0.2821 -0.22085 2019 10 19 58775 0.1941 0.2810 -0.22172 2019 10 20 58776 0.1928 0.2800 -0.22257 2019 10 21 58777 0.1914 0.2790 -0.22343 2019 10 22 58778 0.1900 0.2780 -0.22440 2019 10 23 58779 0.1886 0.2771 -0.22557 2019 10 24 58780 0.1872 0.2761 -0.22700 2019 10 25 58781 0.1858 0.2752 -0.22863 2019 10 26 58782 0.1843 0.2743 -0.23046 2019 10 27 58783 0.1828 0.2734 -0.23241 2019 10 28 58784 0.1813 0.2726 -0.23430 2019 10 29 58785 0.1798 0.2718 -0.23608 2019 10 30 58786 0.1783 0.2710 -0.23763 2019 10 31 58787 0.1767 0.2702 -0.23894 2019 11 1 58788 0.1752 0.2694 -0.24003 2019 11 2 58789 0.1736 0.2687 -0.24099 2019 11 3 58790 0.1720 0.2680 -0.24183 2019 11 4 58791 0.1704 0.2673 -0.24266 2019 11 5 58792 0.1688 0.2666 -0.24359 2019 11 6 58793 0.1672 0.2660 -0.24466 2019 11 7 58794 0.1655 0.2654 -0.24578 2019 11 8 58795 0.1639 0.2648 -0.24694 2019 11 9 58796 0.1622 0.2643 -0.24819 2019 11 10 58797 0.1605 0.2637 -0.24948 2019 11 11 58798 0.1588 0.2632 -0.25072 2019 11 12 58799 0.1571 0.2627 -0.25184 2019 11 13 58800 0.1554 0.2623 -0.25283 2019 11 14 58801 0.1537 0.2619 -0.25369 2019 11 15 58802 0.1520 0.2615 -0.25438 2019 11 16 58803 0.1502 0.2611 -0.25499 2019 11 17 58804 0.1485 0.2607 -0.25550 2019 11 18 58805 0.1467 0.2604 -0.25606 2019 11 19 58806 0.1450 0.2601 -0.25677 2019 11 20 58807 0.1432 0.2599 -0.25768 2019 11 21 58808 0.1414 0.2596 -0.25884 2019 11 22 58809 0.1397 0.2594 -0.26016 2019 11 23 58810 0.1379 0.2592 -0.26163 2019 11 24 58811 0.1361 0.2591 -0.26318 2019 11 25 58812 0.1343 0.2589 -0.26463 2019 11 26 58813 0.1325 0.2588 -0.26589 2019 11 27 58814 0.1307 0.2588 -0.26695 2019 11 28 58815 0.1289 0.2587 -0.26784 2019 11 29 58816 0.1271 0.2587 -0.26855 2019 11 30 58817 0.1253 0.2587 -0.26917 2019 12 1 58818 0.1236 0.2587 -0.26978 2019 12 2 58819 0.1218 0.2588 -0.27043 2019 12 3 58820 0.1200 0.2589 -0.27112 2019 12 4 58821 0.1182 0.2590 -0.27192 2019 12 5 58822 0.1164 0.2592 -0.27288 2019 12 6 58823 0.1146 0.2594 -0.27390 2019 12 7 58824 0.1128 0.2596 -0.27497 2019 12 8 58825 0.1110 0.2598 -0.27603 2019 12 9 58826 0.1093 0.2601 -0.27706 2019 12 10 58827 0.1075 0.2603 -0.27794 2019 12 11 58828 0.1057 0.2607 -0.27866 2019 12 12 58829 0.1040 0.2610 -0.27923 2019 12 13 58830 0.1022 0.2614 -0.27964 2019 12 14 58831 0.1005 0.2618 -0.27996 2019 12 15 58832 0.0987 0.2622 -0.28024 2019 12 16 58833 0.0970 0.2627 -0.28063 2019 12 17 58834 0.0953 0.2631 -0.28121 2019 12 18 58835 0.0935 0.2636 -0.28192 2019 12 19 58836 0.0918 0.2642 -0.28270 2019 12 20 58837 0.0901 0.2647 -0.28356 2019 12 21 58838 0.0885 0.2653 -0.28447 2019 12 22 58839 0.0868 0.2659 -0.28531 2019 12 23 58840 0.0851 0.2666 -0.28603 2019 12 24 58841 0.0835 0.2673 -0.28662 2019 12 25 58842 0.0818 0.2679 -0.28703 2019 12 26 58843 0.0802 0.2687 -0.28727 2019 12 27 58844 0.0786 0.2694 -0.28739 2019 12 28 58845 0.0770 0.2702 -0.28745 2019 12 29 58846 0.0754 0.2710 -0.28753 2019 12 30 58847 0.0739 0.2718 -0.28773 2019 12 31 58848 0.0723 0.2726 -0.28803 2020 1 1 58849 0.0708 0.2735 -0.28842 2020 1 2 58850 0.0693 0.2744 -0.28889 2020 1 3 58851 0.0678 0.2753 -0.28941 2020 1 4 58852 0.0663 0.2763 -0.28992 2020 1 5 58853 0.0648 0.2772 -0.29044 2020 1 6 58854 0.0634 0.2782 -0.29094 2020 1 7 58855 0.0620 0.2792 -0.29135 2020 1 8 58856 0.0606 0.2803 -0.29161 2020 1 9 58857 0.0592 0.2813 -0.29178 2020 1 10 58858 0.0578 0.2824 -0.29191 2020 1 11 58859 0.0565 0.2835 -0.29207 2020 1 12 58860 0.0551 0.2846 -0.29230 2020 1 13 58861 0.0538 0.2858 -0.29267 2020 1 14 58862 0.0525 0.2869 -0.29321 2020 1 15 58863 0.0513 0.2881 -0.29393 2020 1 16 58864 0.0501 0.2893 -0.29482 2020 1 17 58865 0.0488 0.2906 -0.29580 2020 1 18 58866 0.0477 0.2918 -0.29679 2020 1 19 58867 0.0465 0.2931 -0.29768 2020 1 20 58868 0.0453 0.2943 -0.29841 2020 1 21 58869 0.0442 0.2956 -0.29896 2020 1 22 58870 0.0431 0.2970 -0.29931 2020 1 23 58871 0.0421 0.2983 -0.29953 2020 1 24 58872 0.0410 0.2997 -0.29968 2020 1 25 58873 0.0400 0.3010 -0.29986 2020 1 26 58874 0.0390 0.3024 -0.30008 2020 1 27 58875 0.0381 0.3038 -0.30030 2020 1 28 58876 0.0371 0.3052 -0.30065 2020 1 29 58877 0.0362 0.3067 -0.30113 2020 1 30 58878 0.0354 0.3081 -0.30167 2020 1 31 58879 0.0345 0.3096 -0.30231 2020 2 1 58880 0.0337 0.3111 -0.30294 2020 2 2 58881 0.0329 0.3126 -0.30347 2020 2 3 58882 0.0321 0.3141 -0.30397 2020 2 4 58883 0.0314 0.3156 -0.30444 2020 2 5 58884 0.0307 0.3171 -0.30482 2020 2 6 58885 0.0300 0.3187 -0.30513 2020 2 7 58886 0.0294 0.3202 -0.30545 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) 58499 -106.55 0.68 -7.58 0.13 58500 -106.64 0.68 -7.28 0.13 58501 -106.97 0.68 -7.03 0.13 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 58454 -107.5 -7.8 58455 -107.7 -7.8 58456 -108.1 -7.9 58457 -108.3 -7.9 58458 -108.3 -7.9 58459 -108.1 -7.9 58460 -107.8 -7.9 58461 -107.5 -8.0 58462 -107.3 -8.0 58463 -106.9 -7.9 58464 -106.7 -7.7 58465 -106.7 -7.7 58466 -106.8 -7.7 58467 -106.8 -7.8 58468 -106.7 -7.8 58469 -106.8 -7.8 58470 -107.0 -7.6 58471 -107.1 -7.3 58472 -107.2 -7.1 58473 -107.2 -7.0 58474 -107.3 -7.2 58475 -107.3 -7.4 58476 -106.9 -7.5 58477 -106.4 -7.2 58478 -105.9 -6.9 58479 -105.7 -6.8 58480 -105.7 -6.9 58481 -107.0 -7.0 58482 -107.1 -7.1 58483 -107.3 -7.2 58484 -107.5 -7.3 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58499 0.307 0.270 -0.122 0.131 58500 0.276 0.270 -0.127 0.131 58501 0.243 0.270 -0.132 0.131 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 58454 0.37 0.09 58455 0.36 0.09 58456 0.34 0.09 58457 0.33 0.10 58458 0.32 0.10 58459 0.32 0.11 58460 0.32 0.09 58461 0.34 0.08 58462 0.37 0.07 58463 0.44 0.05 58464 0.45 0.04 58465 0.46 0.04 58466 0.47 0.03 58467 0.46 0.02 58468 0.46 0.01 58469 0.45 -0.01 58470 0.44 -0.02 58471 0.43 -0.04 58472 0.43 -0.05 58473 0.42 -0.06 58474 0.42 -0.04 58475 0.43 -0.02 58476 0.44 0.01 58477 0.45 0.04 58478 0.46 0.07 58479 0.47 0.10 58480 0.49 0.06 58481 0.00 0.00 58482 0.00 0.00 58483 0.00 0.00 58484 0.00 0.00 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).