********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 31 January 2019 Vol. XXXII 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 Jan 2019 at 0000 UTC Beginning 1 January 2017: TAI-UTC = 37.000 000 seconds *********************************************************************** * * * There will NOT be a leap second introduced in UTC * * on 30 June 2019. * * * * 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 1 25 58508 0.05702 .00009 0.29569 .00009 -0.053619 0.000013 19 1 26 58509 0.05553 .00009 0.29721 .00009 -0.055060 0.000014 19 1 27 58510 0.05434 .00009 0.29861 .00009 -0.056484 0.000016 19 1 28 58511 0.05348 .00009 0.30007 .00009 -0.057819 0.000017 19 1 29 58512 0.05263 .00009 0.30149 .00009 -0.058940 0.000018 19 1 30 58513 0.05165 .00009 0.30290 .00009 -0.059840 0.000018 19 1 31 58514 0.05062 .00009 0.30437 .00009 -0.060597 0.000018 _______________________________________________________________________ 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 = 0.1228 - 0.0916 cos A - 0.0248 sin A + 0.0274 cos C - 0.0252 sin C y = 0.3587 - 0.0229 cos A + 0.0817 sin A - 0.0252 cos C - 0.0274 sin C UT1-UTC = -0.0761 - 0.00065 (MJD - 58522) - (UT2-UT1) where A = 2*pi*(MJD-58514)/365.25 and C = 2*pi*(MJD-58514)/435. TAI-UTC(MJD 58515) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58514)**0.80 S t = 0.00025 (MJD-58514)**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 1 58515 0.0496 0.3058 -0.06124 2019 2 2 58516 0.0485 0.3072 -0.06178 2019 2 3 58517 0.0475 0.3086 -0.06227 2019 2 4 58518 0.0467 0.3098 -0.06281 2019 2 5 58519 0.0459 0.3110 -0.06344 2019 2 6 58520 0.0451 0.3123 -0.06419 2019 2 7 58521 0.0444 0.3136 -0.06505 2019 2 8 58522 0.0437 0.3149 -0.06602 2019 2 9 58523 0.0431 0.3162 -0.06710 2019 2 10 58524 0.0424 0.3174 -0.06826 2019 2 11 58525 0.0418 0.3187 -0.06943 2019 2 12 58526 0.0412 0.3200 -0.07060 2019 2 13 58527 0.0407 0.3213 -0.07174 2019 2 14 58528 0.0402 0.3226 -0.07282 2019 2 15 58529 0.0398 0.3239 -0.07383 2019 2 16 58530 0.0393 0.3253 -0.07479 2019 2 17 58531 0.0389 0.3267 -0.07575 2019 2 18 58532 0.0385 0.3281 -0.07681 2019 2 19 58533 0.0381 0.3295 -0.07805 2019 2 20 58534 0.0377 0.3309 -0.07948 2019 2 21 58535 0.0374 0.3323 -0.08107 2019 2 22 58536 0.0371 0.3337 -0.08274 2019 2 23 58537 0.0368 0.3351 -0.08437 2019 2 24 58538 0.0366 0.3366 -0.08589 2019 2 25 58539 0.0363 0.3380 -0.08724 2019 2 26 58540 0.0361 0.3394 -0.08839 2019 2 27 58541 0.0360 0.3409 -0.08937 2019 2 28 58542 0.0358 0.3423 -0.09021 2019 3 1 58543 0.0357 0.3437 -0.09096 2019 3 2 58544 0.0356 0.3451 -0.09165 2019 3 3 58545 0.0355 0.3466 -0.09236 2019 3 4 58546 0.0355 0.3480 -0.09311 2019 3 5 58547 0.0355 0.3494 -0.09394 2019 3 6 58548 0.0355 0.3509 -0.09490 2019 3 7 58549 0.0355 0.3523 -0.09597 2019 3 8 58550 0.0356 0.3537 -0.09716 2019 3 9 58551 0.0357 0.3551 -0.09842 2019 3 10 58552 0.0359 0.3566 -0.09971 2019 3 11 58553 0.0360 0.3580 -0.10098 2019 3 12 58554 0.0362 0.3594 -0.10220 2019 3 13 58555 0.0365 0.3609 -0.10332 2019 3 14 58556 0.0367 0.3623 -0.10434 2019 3 15 58557 0.0370 0.3637 -0.10530 2019 3 16 58558 0.0373 0.3651 -0.10624 2019 3 17 58559 0.0377 0.3665 -0.10726 2019 3 18 58560 0.0380 0.3679 -0.10843 2019 3 19 58561 0.0384 0.3694 -0.10983 2019 3 20 58562 0.0388 0.3708 -0.11145 2019 3 21 58563 0.0393 0.3722 -0.11325 2019 3 22 58564 0.0398 0.3735 -0.11510 2019 3 23 58565 0.0403 0.3749 -0.11690 2019 3 24 58566 0.0408 0.3763 -0.11855 2019 3 25 58567 0.0414 0.3777 -0.12000 2019 3 26 58568 0.0420 0.3790 -0.12123 2019 3 27 58569 0.0426 0.3804 -0.12227 2019 3 28 58570 0.0432 0.3817 -0.12318 2019 3 29 58571 0.0439 0.3831 -0.12401 2019 3 30 58572 0.0446 0.3844 -0.12484 2019 3 31 58573 0.0453 0.3857 -0.12570 2019 4 1 58574 0.0460 0.3870 -0.12665 2019 4 2 58575 0.0468 0.3883 -0.12771 2019 4 3 58576 0.0476 0.3896 -0.12889 2019 4 4 58577 0.0484 0.3909 -0.13016 2019 4 5 58578 0.0493 0.3921 -0.13152 2019 4 6 58579 0.0501 0.3934 -0.13290 2019 4 7 58580 0.0510 0.3946 -0.13426 2019 4 8 58581 0.0520 0.3958 -0.13556 2019 4 9 58582 0.0529 0.3970 -0.13675 2019 4 10 58583 0.0539 0.3982 -0.13782 2019 4 11 58584 0.0549 0.3994 -0.13879 2019 4 12 58585 0.0559 0.4006 -0.13971 2019 4 13 58586 0.0569 0.4017 -0.14064 2019 4 14 58587 0.0580 0.4028 -0.14167 2019 4 15 58588 0.0591 0.4040 -0.14286 2019 4 16 58589 0.0602 0.4051 -0.14426 2019 4 17 58590 0.0613 0.4062 -0.14584 2019 4 18 58591 0.0625 0.4072 -0.14753 2019 4 19 58592 0.0636 0.4083 -0.14922 2019 4 20 58593 0.0648 0.4093 -0.15079 2019 4 21 58594 0.0660 0.4103 -0.15217 2019 4 22 58595 0.0673 0.4113 -0.15332 2019 4 23 58596 0.0685 0.4123 -0.15426 2019 4 24 58597 0.0698 0.4133 -0.15503 2019 4 25 58598 0.0711 0.4142 -0.15570 2019 4 26 58599 0.0724 0.4152 -0.15632 2019 4 27 58600 0.0737 0.4161 -0.15694 2019 4 28 58601 0.0750 0.4169 -0.15762 2019 4 29 58602 0.0764 0.4178 -0.15839 2019 4 30 58603 0.0778 0.4187 -0.15926 2019 5 1 58604 0.0792 0.4195 -0.16023 2019 5 2 58605 0.0806 0.4203 -0.16128 2019 5 3 58606 0.0820 0.4211 -0.16237 2019 5 4 58607 0.0834 0.4218 -0.16347 2019 5 5 58608 0.0849 0.4226 -0.16450 2019 5 6 58609 0.0864 0.4233 -0.16543 2019 5 7 58610 0.0878 0.4240 -0.16623 2019 5 8 58611 0.0893 0.4247 -0.16690 2019 5 9 58612 0.0908 0.4253 -0.16748 2019 5 10 58613 0.0924 0.4259 -0.16804 2019 5 11 58614 0.0939 0.4265 -0.16866 2019 5 12 58615 0.0954 0.4271 -0.16941 2019 5 13 58616 0.0970 0.4277 -0.17033 2019 5 14 58617 0.0986 0.4282 -0.17142 2019 5 15 58618 0.1001 0.4287 -0.17263 2019 5 16 58619 0.1017 0.4292 -0.17388 2019 5 17 58620 0.1033 0.4297 -0.17508 2019 5 18 58621 0.1049 0.4301 -0.17612 2019 5 19 58622 0.1065 0.4305 -0.17697 2019 5 20 58623 0.1082 0.4309 -0.17759 2019 5 21 58624 0.1098 0.4313 -0.17803 2019 5 22 58625 0.1114 0.4316 -0.17833 2019 5 23 58626 0.1131 0.4319 -0.17856 2019 5 24 58627 0.1147 0.4322 -0.17876 2019 5 25 58628 0.1164 0.4325 -0.17901 2019 5 26 58629 0.1180 0.4327 -0.17932 2019 5 27 58630 0.1197 0.4330 -0.17973 2019 5 28 58631 0.1214 0.4331 -0.18024 2019 5 29 58632 0.1230 0.4333 -0.18083 2019 5 30 58633 0.1247 0.4334 -0.18147 2019 5 31 58634 0.1264 0.4336 -0.18212 2019 6 1 58635 0.1280 0.4336 -0.18274 2019 6 2 58636 0.1297 0.4337 -0.18326 2019 6 3 58637 0.1314 0.4337 -0.18366 2019 6 4 58638 0.1331 0.4338 -0.18391 2019 6 5 58639 0.1348 0.4337 -0.18405 2019 6 6 58640 0.1364 0.4337 -0.18414 2019 6 7 58641 0.1381 0.4336 -0.18426 2019 6 8 58642 0.1398 0.4335 -0.18448 2019 6 9 58643 0.1414 0.4334 -0.18486 2019 6 10 58644 0.1431 0.4333 -0.18538 2019 6 11 58645 0.1448 0.4331 -0.18602 2019 6 12 58646 0.1464 0.4329 -0.18669 2019 6 13 58647 0.1481 0.4327 -0.18733 2019 6 14 58648 0.1497 0.4324 -0.18783 2019 6 15 58649 0.1514 0.4322 -0.18815 2019 6 16 58650 0.1530 0.4319 -0.18827 2019 6 17 58651 0.1547 0.4315 -0.18820 2019 6 18 58652 0.1563 0.4312 -0.18798 2019 6 19 58653 0.1579 0.4308 -0.18767 2019 6 20 58654 0.1595 0.4304 -0.18733 2019 6 21 58655 0.1611 0.4300 -0.18702 2019 6 22 58656 0.1627 0.4296 -0.18677 2019 6 23 58657 0.1643 0.4291 -0.18661 2019 6 24 58658 0.1659 0.4286 -0.18655 2019 6 25 58659 0.1674 0.4281 -0.18658 2019 6 26 58660 0.1690 0.4275 -0.18668 2019 6 27 58661 0.1705 0.4270 -0.18681 2019 6 28 58662 0.1721 0.4264 -0.18693 2019 6 29 58663 0.1736 0.4257 -0.18700 2019 6 30 58664 0.1751 0.4251 -0.18698 2019 7 1 58665 0.1766 0.4244 -0.18683 2019 7 2 58666 0.1781 0.4237 -0.18657 2019 7 3 58667 0.1795 0.4230 -0.18625 2019 7 4 58668 0.1810 0.4223 -0.18596 2019 7 5 58669 0.1824 0.4215 -0.18577 2019 7 6 58670 0.1839 0.4208 -0.18575 2019 7 7 58671 0.1853 0.4200 -0.18591 2019 7 8 58672 0.1866 0.4191 -0.18621 2019 7 9 58673 0.1880 0.4183 -0.18656 2019 7 10 58674 0.1894 0.4174 -0.18689 2019 7 11 58675 0.1907 0.4165 -0.18711 2019 7 12 58676 0.1920 0.4156 -0.18715 2019 7 13 58677 0.1933 0.4147 -0.18701 2019 7 14 58678 0.1946 0.4138 -0.18670 2019 7 15 58679 0.1959 0.4128 -0.18624 2019 7 16 58680 0.1971 0.4118 -0.18570 2019 7 17 58681 0.1983 0.4108 -0.18512 2019 7 18 58682 0.1995 0.4098 -0.18457 2019 7 19 58683 0.2007 0.4087 -0.18409 2019 7 20 58684 0.2019 0.4077 -0.18371 2019 7 21 58685 0.2030 0.4066 -0.18344 2019 7 22 58686 0.2041 0.4055 -0.18327 2019 7 23 58687 0.2052 0.4043 -0.18319 2019 7 24 58688 0.2063 0.4032 -0.18315 2019 7 25 58689 0.2074 0.4021 -0.18313 2019 7 26 58690 0.2084 0.4009 -0.18308 2019 7 27 58691 0.2094 0.3997 -0.18295 2019 7 28 58692 0.2104 0.3985 -0.18274 2019 7 29 58693 0.2113 0.3973 -0.18241 2019 7 30 58694 0.2123 0.3960 -0.18202 2019 7 31 58695 0.2132 0.3948 -0.18162 2019 8 1 58696 0.2141 0.3935 -0.18131 2019 8 2 58697 0.2149 0.3923 -0.18116 2019 8 3 58698 0.2157 0.3910 -0.18122 2019 8 4 58699 0.2166 0.3897 -0.18145 2019 8 5 58700 0.2173 0.3883 -0.18178 2019 8 6 58701 0.2181 0.3870 -0.18209 2019 8 7 58702 0.2188 0.3857 -0.18229 2019 8 8 58703 0.2195 0.3843 -0.18230 2019 8 9 58704 0.2202 0.3830 -0.18212 2019 8 10 58705 0.2208 0.3816 -0.18177 2019 8 11 58706 0.2214 0.3802 -0.18130 2019 8 12 58707 0.2220 0.3788 -0.18078 2019 8 13 58708 0.2226 0.3774 -0.18026 2019 8 14 58709 0.2231 0.3760 -0.17982 2019 8 15 58710 0.2236 0.3746 -0.17949 2019 8 16 58711 0.2241 0.3731 -0.17931 2019 8 17 58712 0.2246 0.3717 -0.17929 2019 8 18 58713 0.2250 0.3702 -0.17942 2019 8 19 58714 0.2254 0.3688 -0.17969 2019 8 20 58715 0.2257 0.3673 -0.18005 2019 8 21 58716 0.2261 0.3659 -0.18045 2019 8 22 58717 0.2264 0.3644 -0.18087 2019 8 23 58718 0.2267 0.3629 -0.18126 2019 8 24 58719 0.2269 0.3614 -0.18160 2019 8 25 58720 0.2271 0.3599 -0.18189 2019 8 26 58721 0.2273 0.3584 -0.18213 2019 8 27 58722 0.2275 0.3569 -0.18239 2019 8 28 58723 0.2276 0.3554 -0.18272 2019 8 29 58724 0.2277 0.3539 -0.18323 2019 8 30 58725 0.2278 0.3524 -0.18396 2019 8 31 58726 0.2278 0.3509 -0.18493 2019 9 1 58727 0.2278 0.3494 -0.18608 2019 9 2 58728 0.2278 0.3479 -0.18730 2019 9 3 58729 0.2277 0.3464 -0.18844 2019 9 4 58730 0.2276 0.3449 -0.18939 2019 9 5 58731 0.2275 0.3434 -0.19009 2019 9 6 58732 0.2274 0.3419 -0.19058 2019 9 7 58733 0.2272 0.3404 -0.19091 2019 9 8 58734 0.2270 0.3389 -0.19115 2019 9 9 58735 0.2268 0.3374 -0.19135 2019 9 10 58736 0.2265 0.3359 -0.19150 2019 9 11 58737 0.2262 0.3344 -0.19166 2019 9 12 58738 0.2259 0.3329 -0.19184 2019 9 13 58739 0.2256 0.3314 -0.19210 2019 9 14 58740 0.2252 0.3300 -0.19242 2019 9 15 58741 0.2248 0.3285 -0.19277 2019 9 16 58742 0.2243 0.3270 -0.19318 2019 9 17 58743 0.2239 0.3256 -0.19363 2019 9 18 58744 0.2234 0.3241 -0.19408 2019 9 19 58745 0.2229 0.3227 -0.19452 2019 9 20 58746 0.2223 0.3212 -0.19491 2019 9 21 58747 0.2217 0.3198 -0.19524 2019 9 22 58748 0.2211 0.3184 -0.19540 2019 9 23 58749 0.2205 0.3169 -0.19551 2019 9 24 58750 0.2198 0.3155 -0.19569 2019 9 25 58751 0.2191 0.3141 -0.19601 2019 9 26 58752 0.2184 0.3128 -0.19661 2019 9 27 58753 0.2177 0.3114 -0.19752 2019 9 28 58754 0.2169 0.3100 -0.19875 2019 9 29 58755 0.2161 0.3087 -0.20019 2019 9 30 58756 0.2152 0.3073 -0.20170 2019 10 1 58757 0.2144 0.3060 -0.20310 2019 10 2 58758 0.2135 0.3047 -0.20428 2019 10 3 58759 0.2126 0.3034 -0.20528 2019 10 4 58760 0.2117 0.3021 -0.20609 2019 10 5 58761 0.2107 0.3008 -0.20679 2019 10 6 58762 0.2097 0.2995 -0.20746 2019 10 7 58763 0.2087 0.2983 -0.20813 2019 10 8 58764 0.2077 0.2971 -0.20887 2019 10 9 58765 0.2066 0.2959 -0.20975 2019 10 10 58766 0.2055 0.2947 -0.21078 2019 10 11 58767 0.2044 0.2935 -0.21187 2019 10 12 58768 0.2033 0.2923 -0.21308 2019 10 13 58769 0.2021 0.2912 -0.21440 2019 10 14 58770 0.2010 0.2900 -0.21575 2019 10 15 58771 0.1998 0.2889 -0.21713 2019 10 16 58772 0.1986 0.2878 -0.21846 2019 10 17 58773 0.1973 0.2867 -0.21970 2019 10 18 58774 0.1960 0.2857 -0.22080 2019 10 19 58775 0.1948 0.2846 -0.22180 2019 10 20 58776 0.1935 0.2836 -0.22267 2019 10 21 58777 0.1921 0.2826 -0.22351 2019 10 22 58778 0.1908 0.2816 -0.22448 2019 10 23 58779 0.1894 0.2807 -0.22564 2019 10 24 58780 0.1880 0.2797 -0.22698 2019 10 25 58781 0.1866 0.2788 -0.22850 2019 10 26 58782 0.1852 0.2779 -0.23022 2019 10 27 58783 0.1838 0.2770 -0.23203 2019 10 28 58784 0.1823 0.2762 -0.23375 2019 10 29 58785 0.1809 0.2754 -0.23524 2019 10 30 58786 0.1794 0.2745 -0.23646 2019 10 31 58787 0.1779 0.2738 -0.23745 2019 11 1 58788 0.1763 0.2730 -0.23819 2019 11 2 58789 0.1748 0.2723 -0.23881 2019 11 3 58790 0.1733 0.2715 -0.23933 2019 11 4 58791 0.1717 0.2709 -0.23987 2019 11 5 58792 0.1701 0.2702 -0.24050 2019 11 6 58793 0.1685 0.2695 -0.24124 2019 11 7 58794 0.1669 0.2689 -0.24214 2019 11 8 58795 0.1653 0.2683 -0.24312 2019 11 9 58796 0.1637 0.2678 -0.24420 2019 11 10 58797 0.1621 0.2672 -0.24540 2019 11 11 58798 0.1604 0.2667 -0.24660 2019 11 12 58799 0.1587 0.2662 -0.24775 2019 11 13 58800 0.1571 0.2657 -0.24885 2019 11 14 58801 0.1554 0.2653 -0.24986 2019 11 15 58802 0.1537 0.2649 -0.25073 2019 11 16 58803 0.1520 0.2645 -0.25149 2019 11 17 58804 0.1503 0.2641 -0.25223 2019 11 18 58805 0.1486 0.2638 -0.25301 2019 11 19 58806 0.1469 0.2635 -0.25387 2019 11 20 58807 0.1452 0.2632 -0.25492 2019 11 21 58808 0.1434 0.2629 -0.25623 2019 11 22 58809 0.1417 0.2627 -0.25772 2019 11 23 58810 0.1400 0.2625 -0.25932 2019 11 24 58811 0.1382 0.2623 -0.26091 2019 11 25 58812 0.1365 0.2622 -0.26240 2019 11 26 58813 0.1347 0.2620 -0.26362 2019 11 27 58814 0.1330 0.2619 -0.26457 2019 11 28 58815 0.1312 0.2619 -0.26527 2019 11 29 58816 0.1295 0.2618 -0.26578 2019 11 30 58817 0.1277 0.2618 -0.26617 2019 12 1 58818 0.1260 0.2618 -0.26648 2019 12 2 58819 0.1242 0.2619 -0.26685 2019 12 3 58820 0.1224 0.2619 -0.26731 2019 12 4 58821 0.1207 0.2620 -0.26782 2019 12 5 58822 0.1189 0.2622 -0.26832 2019 12 6 58823 0.1172 0.2623 -0.26887 2019 12 7 58824 0.1154 0.2625 -0.26950 2019 12 8 58825 0.1137 0.2627 -0.27014 2019 12 9 58826 0.1120 0.2629 -0.27078 2019 12 10 58827 0.1102 0.2632 -0.27142 2019 12 11 58828 0.1085 0.2635 -0.27197 2019 12 12 58829 0.1068 0.2638 -0.27239 2019 12 13 58830 0.1050 0.2641 -0.27267 2019 12 14 58831 0.1033 0.2645 -0.27287 2019 12 15 58832 0.1016 0.2649 -0.27308 2019 12 16 58833 0.0999 0.2653 -0.27342 2019 12 17 58834 0.0982 0.2658 -0.27394 2019 12 18 58835 0.0966 0.2662 -0.27463 2019 12 19 58836 0.0949 0.2668 -0.27548 2019 12 20 58837 0.0932 0.2673 -0.27644 2019 12 21 58838 0.0916 0.2678 -0.27738 2019 12 22 58839 0.0899 0.2684 -0.27827 2019 12 23 58840 0.0883 0.2690 -0.27905 2019 12 24 58841 0.0867 0.2697 -0.27962 2019 12 25 58842 0.0851 0.2703 -0.27994 2019 12 26 58843 0.0835 0.2710 -0.28011 2019 12 27 58844 0.0819 0.2717 -0.28021 2019 12 28 58845 0.0803 0.2724 -0.28030 2019 12 29 58846 0.0788 0.2732 -0.28042 2019 12 30 58847 0.0772 0.2740 -0.28056 2019 12 31 58848 0.0757 0.2748 -0.28077 2020 1 1 58849 0.0742 0.2756 -0.28107 2020 1 2 58850 0.0727 0.2765 -0.28149 2020 1 3 58851 0.0713 0.2774 -0.28204 2020 1 4 58852 0.0698 0.2783 -0.28269 2020 1 5 58853 0.0684 0.2792 -0.28336 2020 1 6 58854 0.0669 0.2802 -0.28403 2020 1 7 58855 0.0655 0.2811 -0.28461 2020 1 8 58856 0.0642 0.2821 -0.28505 2020 1 9 58857 0.0628 0.2831 -0.28536 2020 1 10 58858 0.0614 0.2842 -0.28557 2020 1 11 58859 0.0601 0.2852 -0.28577 2020 1 12 58860 0.0588 0.2863 -0.28604 2020 1 13 58861 0.0575 0.2874 -0.28636 2020 1 14 58862 0.0563 0.2886 -0.28692 2020 1 15 58863 0.0550 0.2897 -0.28769 2020 1 16 58864 0.0538 0.2909 -0.28858 2020 1 17 58865 0.0526 0.2921 -0.28956 2020 1 18 58866 0.0515 0.2933 -0.29047 2020 1 19 58867 0.0503 0.2945 -0.29116 2020 1 20 58868 0.0492 0.2957 -0.29171 2020 1 21 58869 0.0481 0.2970 -0.29211 2020 1 22 58870 0.0470 0.2983 -0.29236 2020 1 23 58871 0.0460 0.2996 -0.29251 2020 1 24 58872 0.0449 0.3009 -0.29264 2020 1 25 58873 0.0439 0.3022 -0.29283 2020 1 26 58874 0.0430 0.3036 -0.29309 2020 1 27 58875 0.0420 0.3049 -0.29348 2020 1 28 58876 0.0411 0.3063 -0.29403 2020 1 29 58877 0.0402 0.3077 -0.29473 2020 1 30 58878 0.0393 0.3091 -0.29554 2020 1 31 58879 0.0385 0.3105 -0.29645 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) 58488 -106.60 0.94 -7.43 0.07 58489 -106.34 0.92 -7.54 0.09 58490 -106.15 0.92 -7.55 0.11 58491 -106.05 0.78 -7.45 0.13 58492 -106.08 0.78 -7.36 0.13 58493 -106.23 0.78 -7.38 0.13 58494 -106.35 0.78 -7.47 0.13 58495 -106.32 0.32 -7.56 0.16 58496 -106.21 0.92 -7.62 0.07 58497 -106.22 0.92 -7.67 0.07 58498 -106.35 0.92 -7.68 0.07 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58488 0.357 0.376 -0.078 0.071 58489 0.350 0.364 -0.089 0.085 58490 0.343 0.364 -0.098 0.109 58491 0.338 0.309 -0.104 0.131 58492 0.335 0.309 -0.107 0.131 58493 0.334 0.309 -0.108 0.131 58494 0.336 0.309 -0.106 0.131 58495 0.340 0.128 -0.103 0.160 58496 0.344 0.364 -0.098 0.075 58497 0.350 0.364 -0.093 0.075 58498 0.356 0.364 -0.086 0.075 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).