********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 14 February 2019 Vol. XXXII No. 007 ______________________________________________________________________ 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 8 58522 0.04233 .00009 0.31635 .00009 -0.065961 0.000014 19 2 9 58523 0.04178 .00009 0.31820 .00009 -0.067054 0.000012 19 2 10 58524 0.04113 .00009 0.32025 .00009 -0.068222 0.000012 19 2 11 58525 0.04011 .00009 0.32199 .00009 -0.069426 0.000010 19 2 12 58526 0.03889 .00009 0.32316 .00009 -0.070641 0.000065 19 2 13 58527 0.03768 .00009 0.32382 .00009 -0.071832 0.000065 19 2 14 58528 0.03640 .00009 0.32421 .00009 -0.072977 0.000055 _______________________________________________________________________ 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 = 0.1198 - 0.0992 cos A - 0.0045 sin A + 0.0247 cos C - 0.0261 sin C y = 0.3568 - 0.0038 cos A + 0.0895 sin A - 0.0261 cos C - 0.0247 sin C UT1-UTC = -0.0898 - 0.00066 (MJD - 58536) - (UT2-UT1) where A = 2*pi*(MJD-58528)/365.25 and C = 2*pi*(MJD-58528)/435. TAI-UTC(MJD 58529) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58528)**0.80 S t = 0.00025 (MJD-58528)**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 15 58529 0.0355 0.3246 -0.07405 2019 2 16 58530 0.0347 0.3252 -0.07508 2019 2 17 58531 0.0342 0.3261 -0.07611 2019 2 18 58532 0.0338 0.3271 -0.07720 2019 2 19 58533 0.0333 0.3284 -0.07843 2019 2 20 58534 0.0329 0.3297 -0.07985 2019 2 21 58535 0.0324 0.3310 -0.08144 2019 2 22 58536 0.0320 0.3322 -0.08312 2019 2 23 58537 0.0317 0.3335 -0.08480 2019 2 24 58538 0.0314 0.3348 -0.08639 2019 2 25 58539 0.0312 0.3362 -0.08784 2019 2 26 58540 0.0310 0.3377 -0.08913 2019 2 27 58541 0.0308 0.3392 -0.09026 2019 2 28 58542 0.0307 0.3408 -0.09124 2019 3 1 58543 0.0307 0.3423 -0.09213 2019 3 2 58544 0.0306 0.3439 -0.09297 2019 3 3 58545 0.0306 0.3454 -0.09383 2019 3 4 58546 0.0305 0.3469 -0.09474 2019 3 5 58547 0.0305 0.3484 -0.09574 2019 3 6 58548 0.0304 0.3499 -0.09686 2019 3 7 58549 0.0304 0.3514 -0.09811 2019 3 8 58550 0.0304 0.3529 -0.09947 2019 3 9 58551 0.0304 0.3544 -0.10091 2019 3 10 58552 0.0305 0.3558 -0.10238 2019 3 11 58553 0.0306 0.3573 -0.10384 2019 3 12 58554 0.0308 0.3588 -0.10523 2019 3 13 58555 0.0310 0.3603 -0.10653 2019 3 14 58556 0.0312 0.3617 -0.10772 2019 3 15 58557 0.0315 0.3632 -0.10882 2019 3 16 58558 0.0317 0.3646 -0.10988 2019 3 17 58559 0.0320 0.3661 -0.11100 2019 3 18 58560 0.0324 0.3676 -0.11226 2019 3 19 58561 0.0328 0.3690 -0.11373 2019 3 20 58562 0.0332 0.3705 -0.11542 2019 3 21 58563 0.0337 0.3719 -0.11728 2019 3 22 58564 0.0342 0.3734 -0.11918 2019 3 23 58565 0.0347 0.3748 -0.12102 2019 3 24 58566 0.0352 0.3762 -0.12269 2019 3 25 58567 0.0358 0.3777 -0.12414 2019 3 26 58568 0.0364 0.3791 -0.12537 2019 3 27 58569 0.0370 0.3805 -0.12642 2019 3 28 58570 0.0376 0.3819 -0.12734 2019 3 29 58571 0.0383 0.3833 -0.12819 2019 3 30 58572 0.0390 0.3847 -0.12903 2019 3 31 58573 0.0398 0.3861 -0.12992 2019 4 1 58574 0.0405 0.3874 -0.13088 2019 4 2 58575 0.0413 0.3888 -0.13194 2019 4 3 58576 0.0421 0.3901 -0.13311 2019 4 4 58577 0.0429 0.3914 -0.13438 2019 4 5 58578 0.0438 0.3928 -0.13573 2019 4 6 58579 0.0447 0.3941 -0.13713 2019 4 7 58580 0.0456 0.3953 -0.13852 2019 4 8 58581 0.0466 0.3966 -0.13985 2019 4 9 58582 0.0475 0.3979 -0.14108 2019 4 10 58583 0.0485 0.3991 -0.14221 2019 4 11 58584 0.0495 0.4004 -0.14323 2019 4 12 58585 0.0506 0.4016 -0.14420 2019 4 13 58586 0.0516 0.4028 -0.14519 2019 4 14 58587 0.0527 0.4040 -0.14627 2019 4 15 58588 0.0538 0.4051 -0.14752 2019 4 16 58589 0.0550 0.4063 -0.14897 2019 4 17 58590 0.0561 0.4074 -0.15059 2019 4 18 58591 0.0573 0.4085 -0.15232 2019 4 19 58592 0.0585 0.4096 -0.15405 2019 4 20 58593 0.0598 0.4107 -0.15566 2019 4 21 58594 0.0610 0.4118 -0.15708 2019 4 22 58595 0.0623 0.4128 -0.15828 2019 4 23 58596 0.0636 0.4139 -0.15927 2019 4 24 58597 0.0649 0.4149 -0.16009 2019 4 25 58598 0.0662 0.4159 -0.16081 2019 4 26 58599 0.0676 0.4168 -0.16147 2019 4 27 58600 0.0689 0.4178 -0.16213 2019 4 28 58601 0.0703 0.4187 -0.16285 2019 4 29 58602 0.0717 0.4196 -0.16366 2019 4 30 58603 0.0731 0.4205 -0.16456 2019 5 1 58604 0.0746 0.4214 -0.16557 2019 5 2 58605 0.0760 0.4222 -0.16666 2019 5 3 58606 0.0775 0.4230 -0.16779 2019 5 4 58607 0.0790 0.4238 -0.16892 2019 5 5 58608 0.0805 0.4246 -0.16999 2019 5 6 58609 0.0820 0.4253 -0.17095 2019 5 7 58610 0.0836 0.4261 -0.17178 2019 5 8 58611 0.0851 0.4268 -0.17247 2019 5 9 58612 0.0867 0.4275 -0.17306 2019 5 10 58613 0.0882 0.4281 -0.17363 2019 5 11 58614 0.0898 0.4287 -0.17425 2019 5 12 58615 0.0914 0.4294 -0.17499 2019 5 13 58616 0.0930 0.4299 -0.17589 2019 5 14 58617 0.0947 0.4305 -0.17695 2019 5 15 58618 0.0963 0.4310 -0.17814 2019 5 16 58619 0.0980 0.4316 -0.17935 2019 5 17 58620 0.0996 0.4320 -0.18050 2019 5 18 58621 0.1013 0.4325 -0.18150 2019 5 19 58622 0.1030 0.4329 -0.18228 2019 5 20 58623 0.1046 0.4334 -0.18284 2019 5 21 58624 0.1063 0.4337 -0.18321 2019 5 22 58625 0.1080 0.4341 -0.18344 2019 5 23 58626 0.1097 0.4344 -0.18360 2019 5 24 58627 0.1114 0.4347 -0.18374 2019 5 25 58628 0.1132 0.4350 -0.18392 2019 5 26 58629 0.1149 0.4353 -0.18417 2019 5 27 58630 0.1166 0.4355 -0.18452 2019 5 28 58631 0.1184 0.4357 -0.18497 2019 5 29 58632 0.1201 0.4359 -0.18550 2019 5 30 58633 0.1218 0.4360 -0.18609 2019 5 31 58634 0.1236 0.4362 -0.18669 2019 6 1 58635 0.1253 0.4363 -0.18727 2019 6 2 58636 0.1271 0.4363 -0.18775 2019 6 3 58637 0.1288 0.4364 -0.18814 2019 6 4 58638 0.1306 0.4364 -0.18839 2019 6 5 58639 0.1323 0.4364 -0.18852 2019 6 6 58640 0.1341 0.4363 -0.18860 2019 6 7 58641 0.1358 0.4363 -0.18872 2019 6 8 58642 0.1376 0.4362 -0.18894 2019 6 9 58643 0.1393 0.4361 -0.18931 2019 6 10 58644 0.1411 0.4359 -0.18984 2019 6 11 58645 0.1428 0.4357 -0.19048 2019 6 12 58646 0.1445 0.4355 -0.19116 2019 6 13 58647 0.1463 0.4353 -0.19180 2019 6 14 58648 0.1480 0.4351 -0.19232 2019 6 15 58649 0.1497 0.4348 -0.19265 2019 6 16 58650 0.1514 0.4345 -0.19278 2019 6 17 58651 0.1532 0.4342 -0.19273 2019 6 18 58652 0.1549 0.4338 -0.19252 2019 6 19 58653 0.1566 0.4334 -0.19223 2019 6 20 58654 0.1582 0.4330 -0.19191 2019 6 21 58655 0.1599 0.4326 -0.19161 2019 6 22 58656 0.1616 0.4321 -0.19138 2019 6 23 58657 0.1633 0.4316 -0.19124 2019 6 24 58658 0.1649 0.4311 -0.19120 2019 6 25 58659 0.1666 0.4306 -0.19126 2019 6 26 58660 0.1682 0.4300 -0.19138 2019 6 27 58661 0.1698 0.4294 -0.19153 2019 6 28 58662 0.1714 0.4288 -0.19167 2019 6 29 58663 0.1730 0.4282 -0.19176 2019 6 30 58664 0.1746 0.4275 -0.19175 2019 7 1 58665 0.1762 0.4268 -0.19162 2019 7 2 58666 0.1777 0.4261 -0.19137 2019 7 3 58667 0.1793 0.4254 -0.19106 2019 7 4 58668 0.1808 0.4246 -0.19077 2019 7 5 58669 0.1823 0.4238 -0.19058 2019 7 6 58670 0.1838 0.4230 -0.19055 2019 7 7 58671 0.1853 0.4222 -0.19071 2019 7 8 58672 0.1867 0.4213 -0.19099 2019 7 9 58673 0.1882 0.4205 -0.19134 2019 7 10 58674 0.1896 0.4196 -0.19165 2019 7 11 58675 0.1910 0.4187 -0.19185 2019 7 12 58676 0.1924 0.4177 -0.19187 2019 7 13 58677 0.1938 0.4167 -0.19171 2019 7 14 58678 0.1952 0.4158 -0.19137 2019 7 15 58679 0.1965 0.4148 -0.19088 2019 7 16 58680 0.1978 0.4137 -0.19031 2019 7 17 58681 0.1991 0.4127 -0.18971 2019 7 18 58682 0.2004 0.4116 -0.18914 2019 7 19 58683 0.2016 0.4105 -0.18863 2019 7 20 58684 0.2029 0.4094 -0.18822 2019 7 21 58685 0.2041 0.4083 -0.18792 2019 7 22 58686 0.2053 0.4071 -0.18773 2019 7 23 58687 0.2064 0.4060 -0.18762 2019 7 24 58688 0.2076 0.4048 -0.18757 2019 7 25 58689 0.2087 0.4036 -0.18753 2019 7 26 58690 0.2098 0.4024 -0.18746 2019 7 27 58691 0.2108 0.4012 -0.18733 2019 7 28 58692 0.2119 0.3999 -0.18712 2019 7 29 58693 0.2129 0.3986 -0.18681 2019 7 30 58694 0.2139 0.3973 -0.18643 2019 7 31 58695 0.2149 0.3960 -0.18607 2019 8 1 58696 0.2158 0.3947 -0.18581 2019 8 2 58697 0.2167 0.3934 -0.18573 2019 8 3 58698 0.2176 0.3921 -0.18588 2019 8 4 58699 0.2185 0.3907 -0.18622 2019 8 5 58700 0.2193 0.3893 -0.18668 2019 8 6 58701 0.2201 0.3879 -0.18714 2019 8 7 58702 0.2209 0.3865 -0.18750 2019 8 8 58703 0.2217 0.3851 -0.18769 2019 8 9 58704 0.2224 0.3837 -0.18769 2019 8 10 58705 0.2231 0.3823 -0.18749 2019 8 11 58706 0.2238 0.3808 -0.18716 2019 8 12 58707 0.2244 0.3794 -0.18673 2019 8 13 58708 0.2250 0.3779 -0.18627 2019 8 14 58709 0.2256 0.3764 -0.18583 2019 8 15 58710 0.2262 0.3750 -0.18545 2019 8 16 58711 0.2267 0.3735 -0.18515 2019 8 17 58712 0.2272 0.3720 -0.18496 2019 8 18 58713 0.2277 0.3704 -0.18487 2019 8 19 58714 0.2281 0.3689 -0.18486 2019 8 20 58715 0.2285 0.3674 -0.18488 2019 8 21 58716 0.2289 0.3659 -0.18491 2019 8 22 58717 0.2292 0.3643 -0.18489 2019 8 23 58718 0.2295 0.3628 -0.18481 2019 8 24 58719 0.2298 0.3612 -0.18465 2019 8 25 58720 0.2301 0.3597 -0.18440 2019 8 26 58721 0.2303 0.3581 -0.18410 2019 8 27 58722 0.2305 0.3566 -0.18380 2019 8 28 58723 0.2307 0.3550 -0.18359 2019 8 29 58724 0.2308 0.3534 -0.18357 2019 8 30 58725 0.2309 0.3519 -0.18382 2019 8 31 58726 0.2310 0.3503 -0.18436 2019 9 1 58727 0.2310 0.3487 -0.18513 2019 9 2 58728 0.2310 0.3471 -0.18602 2019 9 3 58729 0.2310 0.3456 -0.18690 2019 9 4 58730 0.2309 0.3440 -0.18766 2019 9 5 58731 0.2309 0.3424 -0.18826 2019 9 6 58732 0.2307 0.3408 -0.18868 2019 9 7 58733 0.2306 0.3393 -0.18895 2019 9 8 58734 0.2304 0.3377 -0.18914 2019 9 9 58735 0.2302 0.3361 -0.18931 2019 9 10 58736 0.2300 0.3345 -0.18951 2019 9 11 58737 0.2297 0.3330 -0.18978 2019 9 12 58738 0.2294 0.3314 -0.19016 2019 9 13 58739 0.2291 0.3299 -0.19068 2019 9 14 58740 0.2287 0.3283 -0.19133 2019 9 15 58741 0.2283 0.3268 -0.19211 2019 9 16 58742 0.2279 0.3252 -0.19299 2019 9 17 58743 0.2274 0.3237 -0.19392 2019 9 18 58744 0.2269 0.3222 -0.19488 2019 9 19 58745 0.2264 0.3207 -0.19584 2019 9 20 58746 0.2259 0.3191 -0.19678 2019 9 21 58747 0.2253 0.3176 -0.19765 2019 9 22 58748 0.2247 0.3161 -0.19844 2019 9 23 58749 0.2240 0.3146 -0.19916 2019 9 24 58750 0.2234 0.3132 -0.19989 2019 9 25 58751 0.2227 0.3117 -0.20071 2019 9 26 58752 0.2220 0.3102 -0.20174 2019 9 27 58753 0.2212 0.3088 -0.20306 2019 9 28 58754 0.2204 0.3074 -0.20464 2019 9 29 58755 0.2196 0.3059 -0.20639 2019 9 30 58756 0.2188 0.3045 -0.20813 2019 10 1 58757 0.2179 0.3031 -0.20971 2019 10 2 58758 0.2170 0.3017 -0.21103 2019 10 3 58759 0.2161 0.3004 -0.21209 2019 10 4 58760 0.2152 0.2990 -0.21295 2019 10 5 58761 0.2142 0.2977 -0.21366 2019 10 6 58762 0.2132 0.2963 -0.21435 2019 10 7 58763 0.2122 0.2950 -0.21501 2019 10 8 58764 0.2111 0.2937 -0.21564 2019 10 9 58765 0.2100 0.2924 -0.21630 2019 10 10 58766 0.2089 0.2912 -0.21699 2019 10 11 58767 0.2078 0.2899 -0.21774 2019 10 12 58768 0.2067 0.2887 -0.21856 2019 10 13 58769 0.2055 0.2875 -0.21937 2019 10 14 58770 0.2043 0.2863 -0.22021 2019 10 15 58771 0.2031 0.2851 -0.22103 2019 10 16 58772 0.2018 0.2839 -0.22182 2019 10 17 58773 0.2005 0.2828 -0.22255 2019 10 18 58774 0.1993 0.2816 -0.22319 2019 10 19 58775 0.1979 0.2805 -0.22377 2019 10 20 58776 0.1966 0.2795 -0.22419 2019 10 21 58777 0.1952 0.2784 -0.22458 2019 10 22 58778 0.1939 0.2773 -0.22509 2019 10 23 58779 0.1925 0.2763 -0.22576 2019 10 24 58780 0.1910 0.2753 -0.22673 2019 10 25 58781 0.1896 0.2743 -0.22800 2019 10 26 58782 0.1881 0.2734 -0.22953 2019 10 27 58783 0.1867 0.2724 -0.23121 2019 10 28 58784 0.1852 0.2715 -0.23289 2019 10 29 58785 0.1837 0.2706 -0.23441 2019 10 30 58786 0.1821 0.2698 -0.23569 2019 10 31 58787 0.1806 0.2689 -0.23677 2019 11 1 58788 0.1790 0.2681 -0.23768 2019 11 2 58789 0.1774 0.2673 -0.23852 2019 11 3 58790 0.1758 0.2666 -0.23934 2019 11 4 58791 0.1742 0.2658 -0.24018 2019 11 5 58792 0.1726 0.2651 -0.24112 2019 11 6 58793 0.1709 0.2644 -0.24220 2019 11 7 58794 0.1693 0.2637 -0.24341 2019 11 8 58795 0.1676 0.2631 -0.24468 2019 11 9 58796 0.1659 0.2624 -0.24604 2019 11 10 58797 0.1642 0.2619 -0.24746 2019 11 11 58798 0.1625 0.2613 -0.24888 2019 11 12 58799 0.1608 0.2607 -0.25029 2019 11 13 58800 0.1591 0.2602 -0.25160 2019 11 14 58801 0.1574 0.2597 -0.25280 2019 11 15 58802 0.1556 0.2593 -0.25384 2019 11 16 58803 0.1538 0.2588 -0.25477 2019 11 17 58804 0.1521 0.2584 -0.25561 2019 11 18 58805 0.1503 0.2580 -0.25646 2019 11 19 58806 0.1485 0.2577 -0.25747 2019 11 20 58807 0.1467 0.2574 -0.25870 2019 11 21 58808 0.1449 0.2571 -0.26008 2019 11 22 58809 0.1431 0.2568 -0.26160 2019 11 23 58810 0.1413 0.2566 -0.26323 2019 11 24 58811 0.1395 0.2563 -0.26487 2019 11 25 58812 0.1377 0.2561 -0.26636 2019 11 26 58813 0.1359 0.2560 -0.26758 2019 11 27 58814 0.1341 0.2559 -0.26854 2019 11 28 58815 0.1322 0.2558 -0.26928 2019 11 29 58816 0.1304 0.2557 -0.26981 2019 11 30 58817 0.1286 0.2556 -0.27027 2019 12 1 58818 0.1267 0.2556 -0.27065 2019 12 2 58819 0.1249 0.2556 -0.27109 2019 12 3 58820 0.1231 0.2557 -0.27163 2019 12 4 58821 0.1212 0.2557 -0.27229 2019 12 5 58822 0.1194 0.2558 -0.27309 2019 12 6 58823 0.1176 0.2560 -0.27395 2019 12 7 58824 0.1158 0.2561 -0.27489 2019 12 8 58825 0.1139 0.2563 -0.27591 2019 12 9 58826 0.1121 0.2565 -0.27690 2019 12 10 58827 0.1103 0.2567 -0.27781 2019 12 11 58828 0.1085 0.2570 -0.27865 2019 12 12 58829 0.1067 0.2573 -0.27940 2019 12 13 58830 0.1049 0.2576 -0.28002 2019 12 14 58831 0.1031 0.2580 -0.28057 2019 12 15 58832 0.1013 0.2584 -0.28115 2019 12 16 58833 0.0995 0.2588 -0.28182 2019 12 17 58834 0.0977 0.2592 -0.28263 2019 12 18 58835 0.0960 0.2597 -0.28362 2019 12 19 58836 0.0942 0.2602 -0.28486 2019 12 20 58837 0.0925 0.2607 -0.28619 2019 12 21 58838 0.0907 0.2612 -0.28754 2019 12 22 58839 0.0890 0.2618 -0.28881 2019 12 23 58840 0.0873 0.2624 -0.28991 2019 12 24 58841 0.0856 0.2630 -0.29075 2019 12 25 58842 0.0839 0.2637 -0.29133 2019 12 26 58843 0.0822 0.2644 -0.29171 2019 12 27 58844 0.0805 0.2651 -0.29196 2019 12 28 58845 0.0789 0.2658 -0.29214 2019 12 29 58846 0.0772 0.2665 -0.29230 2019 12 30 58847 0.0756 0.2673 -0.29254 2019 12 31 58848 0.0740 0.2681 -0.29290 2020 1 1 58849 0.0724 0.2690 -0.29331 2020 1 2 58850 0.0708 0.2698 -0.29371 2020 1 3 58851 0.0693 0.2707 -0.29414 2020 1 4 58852 0.0677 0.2716 -0.29461 2020 1 5 58853 0.0662 0.2726 -0.29508 2020 1 6 58854 0.0647 0.2735 -0.29553 2020 1 7 58855 0.0632 0.2745 -0.29596 2020 1 8 58856 0.0617 0.2755 -0.29631 2020 1 9 58857 0.0603 0.2765 -0.29655 2020 1 10 58858 0.0589 0.2776 -0.29670 2020 1 11 58859 0.0574 0.2787 -0.29682 2020 1 12 58860 0.0561 0.2798 -0.29703 2020 1 13 58861 0.0547 0.2809 -0.29744 2020 1 14 58862 0.0533 0.2820 -0.29807 2020 1 15 58863 0.0520 0.2832 -0.29889 2020 1 16 58864 0.0507 0.2844 -0.29982 2020 1 17 58865 0.0494 0.2856 -0.30078 2020 1 18 58866 0.0482 0.2868 -0.30163 2020 1 19 58867 0.0469 0.2881 -0.30236 2020 1 20 58868 0.0457 0.2893 -0.30293 2020 1 21 58869 0.0445 0.2906 -0.30331 2020 1 22 58870 0.0434 0.2919 -0.30348 2020 1 23 58871 0.0423 0.2932 -0.30356 2020 1 24 58872 0.0411 0.2946 -0.30363 2020 1 25 58873 0.0401 0.2959 -0.30376 2020 1 26 58874 0.0390 0.2973 -0.30395 2020 1 27 58875 0.0380 0.2987 -0.30421 2020 1 28 58876 0.0370 0.3001 -0.30455 2020 1 29 58877 0.0360 0.3016 -0.30498 2020 1 30 58878 0.0350 0.3030 -0.30551 2020 1 31 58879 0.0341 0.3045 -0.30616 2020 2 1 58880 0.0332 0.3059 -0.30687 2020 2 2 58881 0.0324 0.3074 -0.30760 2020 2 3 58882 0.0315 0.3089 -0.30829 2020 2 4 58883 0.0307 0.3104 -0.30889 2020 2 5 58884 0.0300 0.3120 -0.30938 2020 2 6 58885 0.0292 0.3135 -0.30976 2020 2 7 58886 0.0285 0.3151 -0.31010 2020 2 8 58887 0.0278 0.3166 -0.31050 2020 2 9 58888 0.0272 0.3182 -0.31104 2020 2 10 58889 0.0265 0.3198 -0.31171 2020 2 11 58890 0.0259 0.3214 -0.31265 2020 2 12 58891 0.0254 0.3230 -0.31379 2020 2 13 58892 0.0248 0.3246 -0.31500 2020 2 14 58893 0.0243 0.3263 -0.31621 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) 58502 -107.50 0.50 -7.14 0.15 58503 -107.97 0.50 -7.53 0.15 58504 -107.76 0.59 -7.85 0.19 58505 -106.95 0.67 -7.84 0.21 58506 -106.09 0.57 -7.62 0.22 58507 -105.64 0.57 -7.46 0.22 58508 -105.65 0.57 -7.40 0.22 58509 -105.92 0.57 -7.32 0.22 58510 -106.20 0.58 -7.23 0.20 58511 -106.36 0.58 -7.26 0.20 58512 -106.47 0.78 -7.43 0.15 58513 -106.66 0.62 -7.62 0.12 58514 -106.87 0.62 -7.74 0.12 58515 -106.92 0.62 -7.80 0.12 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58502 0.255 0.197 -0.161 0.153 58503 0.245 0.197 -0.172 0.153 58504 0.238 0.235 -0.183 0.188 58505 0.233 0.265 -0.191 0.215 58506 0.231 0.225 -0.197 0.217 58507 0.230 0.225 -0.200 0.217 58508 0.231 0.225 -0.199 0.217 58509 0.234 0.225 -0.194 0.217 58510 0.239 0.232 -0.186 0.199 58511 0.244 0.232 -0.176 0.199 58512 0.246 0.311 -0.163 0.152 58513 0.245 0.248 -0.149 0.124 58514 0.240 0.248 -0.135 0.124 58515 0.234 0.248 -0.120 0.124 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).