********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 17 January 2019 Vol. XXXII No. 003 ______________________________________________________________________ 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 11 58494 0.06890 .00009 0.27615 .00009 -0.041097 0.000021 19 1 12 58495 0.06825 .00009 0.27702 .00009 -0.041730 0.000020 19 1 13 58496 0.06764 .00009 0.27838 .00009 -0.042461 0.000016 19 1 14 58497 0.06699 .00009 0.28006 .00009 -0.043262 0.000013 19 1 15 58498 0.06628 .00009 0.28190 .00009 -0.044157 0.000013 19 1 16 58499 0.06545 .00009 0.28371 .00009 -0.045102 0.000065 19 1 17 58500 0.06443 .00009 0.28545 .00009 -0.046007 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 = 0.1189 - 0.0800 cos A - 0.0411 sin A + 0.0311 cos C - 0.0247 sin C y = 0.3564 - 0.0383 cos A + 0.0705 sin A - 0.0247 cos C - 0.0311 sin C UT1-UTC = -0.0626 - 0.00066 (MJD - 58508) - (UT2-UT1) where A = 2*pi*(MJD-58500)/365.25 and C = 2*pi*(MJD-58500)/435. TAI-UTC(MJD 58501) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58500)**0.80 S t = 0.00025 (MJD-58500)**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 1 18 58501 0.0632 0.2870 -0.04686 2019 1 19 58502 0.0620 0.2885 -0.04764 2019 1 20 58503 0.0608 0.2899 -0.04838 2019 1 21 58504 0.0596 0.2911 -0.04920 2019 1 22 58505 0.0584 0.2924 -0.05014 2019 1 23 58506 0.0572 0.2937 -0.05127 2019 1 24 58507 0.0560 0.2950 -0.05259 2019 1 25 58508 0.0547 0.2963 -0.05404 2019 1 26 58509 0.0535 0.2976 -0.05551 2019 1 27 58510 0.0524 0.2988 -0.05692 2019 1 28 58511 0.0512 0.2999 -0.05818 2019 1 29 58512 0.0502 0.3010 -0.05925 2019 1 30 58513 0.0492 0.3021 -0.06012 2019 1 31 58514 0.0482 0.3033 -0.06080 2019 2 1 58515 0.0473 0.3045 -0.06131 2019 2 2 58516 0.0465 0.3057 -0.06174 2019 2 3 58517 0.0457 0.3069 -0.06214 2019 2 4 58518 0.0449 0.3081 -0.06257 2019 2 5 58519 0.0442 0.3094 -0.06309 2019 2 6 58520 0.0435 0.3107 -0.06373 2019 2 7 58521 0.0429 0.3120 -0.06448 2019 2 8 58522 0.0422 0.3134 -0.06535 2019 2 9 58523 0.0416 0.3147 -0.06630 2019 2 10 58524 0.0409 0.3161 -0.06731 2019 2 11 58525 0.0403 0.3175 -0.06833 2019 2 12 58526 0.0397 0.3189 -0.06932 2019 2 13 58527 0.0392 0.3203 -0.07027 2019 2 14 58528 0.0386 0.3217 -0.07114 2019 2 15 58529 0.0381 0.3231 -0.07194 2019 2 16 58530 0.0376 0.3246 -0.07268 2019 2 17 58531 0.0371 0.3260 -0.07344 2019 2 18 58532 0.0367 0.3275 -0.07430 2019 2 19 58533 0.0362 0.3289 -0.07533 2019 2 20 58534 0.0358 0.3304 -0.07657 2019 2 21 58535 0.0355 0.3318 -0.07799 2019 2 22 58536 0.0351 0.3333 -0.07952 2019 2 23 58537 0.0348 0.3347 -0.08105 2019 2 24 58538 0.0345 0.3362 -0.08248 2019 2 25 58539 0.0343 0.3376 -0.08376 2019 2 26 58540 0.0340 0.3391 -0.08486 2019 2 27 58541 0.0339 0.3406 -0.08578 2019 2 28 58542 0.0337 0.3421 -0.08658 2019 3 1 58543 0.0336 0.3435 -0.08729 2019 3 2 58544 0.0335 0.3450 -0.08797 2019 3 3 58545 0.0334 0.3465 -0.08867 2019 3 4 58546 0.0334 0.3480 -0.08944 2019 3 5 58547 0.0334 0.3495 -0.09030 2019 3 6 58548 0.0334 0.3510 -0.09127 2019 3 7 58549 0.0334 0.3525 -0.09236 2019 3 8 58550 0.0335 0.3540 -0.09354 2019 3 9 58551 0.0336 0.3555 -0.09480 2019 3 10 58552 0.0338 0.3570 -0.09609 2019 3 11 58553 0.0339 0.3585 -0.09737 2019 3 12 58554 0.0341 0.3600 -0.09860 2019 3 13 58555 0.0343 0.3615 -0.09974 2019 3 14 58556 0.0346 0.3630 -0.10079 2019 3 15 58557 0.0349 0.3645 -0.10176 2019 3 16 58558 0.0352 0.3660 -0.10270 2019 3 17 58559 0.0355 0.3674 -0.10370 2019 3 18 58560 0.0359 0.3689 -0.10484 2019 3 19 58561 0.0363 0.3704 -0.10620 2019 3 20 58562 0.0367 0.3719 -0.10777 2019 3 21 58563 0.0371 0.3733 -0.10951 2019 3 22 58564 0.0376 0.3748 -0.11132 2019 3 23 58565 0.0381 0.3762 -0.11307 2019 3 24 58566 0.0387 0.3777 -0.11466 2019 3 25 58567 0.0392 0.3791 -0.11605 2019 3 26 58568 0.0398 0.3805 -0.11723 2019 3 27 58569 0.0404 0.3819 -0.11823 2019 3 28 58570 0.0411 0.3834 -0.11911 2019 3 29 58571 0.0418 0.3848 -0.11991 2019 3 30 58572 0.0425 0.3861 -0.12070 2019 3 31 58573 0.0432 0.3875 -0.12153 2019 4 1 58574 0.0440 0.3889 -0.12243 2019 4 2 58575 0.0447 0.3903 -0.12344 2019 4 3 58576 0.0456 0.3916 -0.12456 2019 4 4 58577 0.0464 0.3929 -0.12580 2019 4 5 58578 0.0473 0.3943 -0.12711 2019 4 6 58579 0.0481 0.3956 -0.12845 2019 4 7 58580 0.0491 0.3969 -0.12978 2019 4 8 58581 0.0500 0.3982 -0.13104 2019 4 9 58582 0.0510 0.3994 -0.13219 2019 4 10 58583 0.0519 0.4007 -0.13323 2019 4 11 58584 0.0530 0.4019 -0.13416 2019 4 12 58585 0.0540 0.4032 -0.13505 2019 4 13 58586 0.0551 0.4044 -0.13594 2019 4 14 58587 0.0561 0.4056 -0.13694 2019 4 15 58588 0.0572 0.4068 -0.13811 2019 4 16 58589 0.0584 0.4079 -0.13948 2019 4 17 58590 0.0595 0.4091 -0.14104 2019 4 18 58591 0.0607 0.4102 -0.14272 2019 4 19 58592 0.0619 0.4113 -0.14440 2019 4 20 58593 0.0631 0.4124 -0.14599 2019 4 21 58594 0.0643 0.4135 -0.14738 2019 4 22 58595 0.0656 0.4146 -0.14856 2019 4 23 58596 0.0669 0.4156 -0.14953 2019 4 24 58597 0.0682 0.4166 -0.15034 2019 4 25 58598 0.0695 0.4176 -0.15104 2019 4 26 58599 0.0708 0.4186 -0.15171 2019 4 27 58600 0.0722 0.4196 -0.15240 2019 4 28 58601 0.0735 0.4205 -0.15315 2019 4 29 58602 0.0749 0.4215 -0.15400 2019 4 30 58603 0.0763 0.4224 -0.15496 2019 5 1 58604 0.0778 0.4232 -0.15602 2019 5 2 58605 0.0792 0.4241 -0.15716 2019 5 3 58606 0.0807 0.4249 -0.15835 2019 5 4 58607 0.0821 0.4257 -0.15954 2019 5 5 58608 0.0836 0.4265 -0.16068 2019 5 6 58609 0.0851 0.4273 -0.16167 2019 5 7 58610 0.0866 0.4281 -0.16253 2019 5 8 58611 0.0882 0.4288 -0.16326 2019 5 9 58612 0.0897 0.4295 -0.16389 2019 5 10 58613 0.0913 0.4302 -0.16450 2019 5 11 58614 0.0928 0.4308 -0.16516 2019 5 12 58615 0.0944 0.4314 -0.16594 2019 5 13 58616 0.0960 0.4320 -0.16689 2019 5 14 58617 0.0976 0.4326 -0.16800 2019 5 15 58618 0.0992 0.4332 -0.16922 2019 5 16 58619 0.1009 0.4337 -0.17048 2019 5 17 58620 0.1025 0.4342 -0.17168 2019 5 18 58621 0.1041 0.4347 -0.17272 2019 5 19 58622 0.1058 0.4352 -0.17355 2019 5 20 58623 0.1075 0.4356 -0.17416 2019 5 21 58624 0.1091 0.4360 -0.17458 2019 5 22 58625 0.1108 0.4364 -0.17486 2019 5 23 58626 0.1125 0.4367 -0.17507 2019 5 24 58627 0.1142 0.4371 -0.17526 2019 5 25 58628 0.1159 0.4374 -0.17548 2019 5 26 58629 0.1176 0.4377 -0.17578 2019 5 27 58630 0.1193 0.4379 -0.17617 2019 5 28 58631 0.1210 0.4381 -0.17665 2019 5 29 58632 0.1227 0.4383 -0.17722 2019 5 30 58633 0.1244 0.4385 -0.17784 2019 5 31 58634 0.1261 0.4386 -0.17847 2019 6 1 58635 0.1278 0.4388 -0.17907 2019 6 2 58636 0.1296 0.4389 -0.17958 2019 6 3 58637 0.1313 0.4389 -0.17996 2019 6 4 58638 0.1330 0.4390 -0.18020 2019 6 5 58639 0.1347 0.4390 -0.18033 2019 6 6 58640 0.1364 0.4390 -0.18042 2019 6 7 58641 0.1382 0.4389 -0.18054 2019 6 8 58642 0.1399 0.4389 -0.18076 2019 6 9 58643 0.1416 0.4388 -0.18114 2019 6 10 58644 0.1433 0.4386 -0.18168 2019 6 11 58645 0.1450 0.4385 -0.18233 2019 6 12 58646 0.1467 0.4383 -0.18303 2019 6 13 58647 0.1484 0.4381 -0.18368 2019 6 14 58648 0.1501 0.4379 -0.18421 2019 6 15 58649 0.1518 0.4377 -0.18456 2019 6 16 58650 0.1535 0.4374 -0.18470 2019 6 17 58651 0.1552 0.4371 -0.18466 2019 6 18 58652 0.1569 0.4367 -0.18447 2019 6 19 58653 0.1585 0.4364 -0.18419 2019 6 20 58654 0.1602 0.4360 -0.18388 2019 6 21 58655 0.1618 0.4356 -0.18360 2019 6 22 58656 0.1635 0.4352 -0.18338 2019 6 23 58657 0.1651 0.4347 -0.18326 2019 6 24 58658 0.1667 0.4342 -0.18323 2019 6 25 58659 0.1684 0.4337 -0.18330 2019 6 26 58660 0.1700 0.4332 -0.18343 2019 6 27 58661 0.1716 0.4326 -0.18360 2019 6 28 58662 0.1731 0.4320 -0.18376 2019 6 29 58663 0.1747 0.4314 -0.18386 2019 6 30 58664 0.1763 0.4308 -0.18386 2019 7 1 58665 0.1778 0.4301 -0.18374 2019 7 2 58666 0.1793 0.4294 -0.18351 2019 7 3 58667 0.1808 0.4287 -0.18321 2019 7 4 58668 0.1823 0.4280 -0.18293 2019 7 5 58669 0.1838 0.4272 -0.18275 2019 7 6 58670 0.1853 0.4265 -0.18274 2019 7 7 58671 0.1867 0.4256 -0.18291 2019 7 8 58672 0.1882 0.4248 -0.18321 2019 7 9 58673 0.1896 0.4240 -0.18356 2019 7 10 58674 0.1910 0.4231 -0.18388 2019 7 11 58675 0.1924 0.4222 -0.18408 2019 7 12 58676 0.1937 0.4213 -0.18411 2019 7 13 58677 0.1951 0.4204 -0.18395 2019 7 14 58678 0.1964 0.4194 -0.18360 2019 7 15 58679 0.1977 0.4184 -0.18311 2019 7 16 58680 0.1990 0.4174 -0.18252 2019 7 17 58681 0.2003 0.4164 -0.18190 2019 7 18 58682 0.2015 0.4154 -0.18129 2019 7 19 58683 0.2028 0.4143 -0.18074 2019 7 20 58684 0.2040 0.4132 -0.18028 2019 7 21 58685 0.2052 0.4121 -0.17992 2019 7 22 58686 0.2063 0.4110 -0.17965 2019 7 23 58687 0.2075 0.4099 -0.17947 2019 7 24 58688 0.2086 0.4087 -0.17933 2019 7 25 58689 0.2097 0.4076 -0.17921 2019 7 26 58690 0.2107 0.4064 -0.17907 2019 7 27 58691 0.2118 0.4052 -0.17891 2019 7 28 58692 0.2128 0.4039 -0.17870 2019 7 29 58693 0.2138 0.4027 -0.17845 2019 7 30 58694 0.2148 0.4015 -0.17819 2019 7 31 58695 0.2157 0.4002 -0.17799 2019 8 1 58696 0.2167 0.3989 -0.17795 2019 8 2 58697 0.2176 0.3976 -0.17814 2019 8 3 58698 0.2184 0.3963 -0.17858 2019 8 4 58699 0.2193 0.3950 -0.17923 2019 8 5 58700 0.2201 0.3936 -0.18002 2019 8 6 58701 0.2209 0.3923 -0.18080 2019 8 7 58702 0.2217 0.3909 -0.18148 2019 8 8 58703 0.2224 0.3895 -0.18197 2019 8 9 58704 0.2231 0.3881 -0.18225 2019 8 10 58705 0.2238 0.3867 -0.18231 2019 8 11 58706 0.2245 0.3853 -0.18220 2019 8 12 58707 0.2251 0.3839 -0.18196 2019 8 13 58708 0.2257 0.3824 -0.18166 2019 8 14 58709 0.2262 0.3810 -0.18134 2019 8 15 58710 0.2268 0.3795 -0.18105 2019 8 16 58711 0.2273 0.3780 -0.18080 2019 8 17 58712 0.2278 0.3766 -0.18062 2019 8 18 58713 0.2282 0.3751 -0.18049 2019 8 19 58714 0.2287 0.3736 -0.18041 2019 8 20 58715 0.2291 0.3721 -0.18037 2019 8 21 58716 0.2294 0.3706 -0.18036 2019 8 22 58717 0.2298 0.3691 -0.18035 2019 8 23 58718 0.2301 0.3676 -0.18032 2019 8 24 58719 0.2304 0.3660 -0.18022 2019 8 25 58720 0.2306 0.3645 -0.18001 2019 8 26 58721 0.2308 0.3630 -0.17970 2019 8 27 58722 0.2310 0.3614 -0.17939 2019 8 28 58723 0.2312 0.3599 -0.17918 2019 8 29 58724 0.2313 0.3584 -0.17919 2019 8 30 58725 0.2314 0.3568 -0.17951 2019 8 31 58726 0.2315 0.3553 -0.18014 2019 9 1 58727 0.2315 0.3537 -0.18102 2019 9 2 58728 0.2315 0.3522 -0.18203 2019 9 3 58729 0.2315 0.3506 -0.18297 2019 9 4 58730 0.2314 0.3491 -0.18375 2019 9 5 58731 0.2313 0.3475 -0.18437 2019 9 6 58732 0.2312 0.3459 -0.18480 2019 9 7 58733 0.2311 0.3444 -0.18511 2019 9 8 58734 0.2309 0.3428 -0.18535 2019 9 9 58735 0.2307 0.3413 -0.18557 2019 9 10 58736 0.2304 0.3398 -0.18583 2019 9 11 58737 0.2302 0.3382 -0.18621 2019 9 12 58738 0.2299 0.3367 -0.18672 2019 9 13 58739 0.2296 0.3351 -0.18731 2019 9 14 58740 0.2292 0.3336 -0.18803 2019 9 15 58741 0.2288 0.3321 -0.18888 2019 9 16 58742 0.2284 0.3306 -0.18981 2019 9 17 58743 0.2279 0.3291 -0.19081 2019 9 18 58744 0.2275 0.3276 -0.19180 2019 9 19 58745 0.2270 0.3261 -0.19275 2019 9 20 58746 0.2264 0.3246 -0.19360 2019 9 21 58747 0.2259 0.3231 -0.19435 2019 9 22 58748 0.2253 0.3216 -0.19496 2019 9 23 58749 0.2246 0.3201 -0.19552 2019 9 24 58750 0.2240 0.3187 -0.19616 2019 9 25 58751 0.2233 0.3172 -0.19697 2019 9 26 58752 0.2226 0.3158 -0.19794 2019 9 27 58753 0.2219 0.3144 -0.19911 2019 9 28 58754 0.2211 0.3129 -0.20053 2019 9 29 58755 0.2203 0.3115 -0.20210 2019 9 30 58756 0.2195 0.3101 -0.20365 2019 10 1 58757 0.2186 0.3087 -0.20501 2019 10 2 58758 0.2178 0.3074 -0.20614 2019 10 3 58759 0.2169 0.3060 -0.20704 2019 10 4 58760 0.2159 0.3047 -0.20768 2019 10 5 58761 0.2150 0.3033 -0.20817 2019 10 6 58762 0.2140 0.3020 -0.20854 2019 10 7 58763 0.2130 0.3007 -0.20890 2019 10 8 58764 0.2120 0.2994 -0.20934 2019 10 9 58765 0.2109 0.2982 -0.20989 2019 10 10 58766 0.2098 0.2969 -0.21059 2019 10 11 58767 0.2087 0.2957 -0.21139 2019 10 12 58768 0.2076 0.2945 -0.21233 2019 10 13 58769 0.2065 0.2933 -0.21342 2019 10 14 58770 0.2053 0.2921 -0.21455 2019 10 15 58771 0.2041 0.2909 -0.21568 2019 10 16 58772 0.2029 0.2898 -0.21679 2019 10 17 58773 0.2016 0.2886 -0.21784 2019 10 18 58774 0.2004 0.2875 -0.21878 2019 10 19 58775 0.1991 0.2864 -0.21960 2019 10 20 58776 0.1978 0.2853 -0.22038 2019 10 21 58777 0.1964 0.2843 -0.22115 2019 10 22 58778 0.1951 0.2833 -0.22196 2019 10 23 58779 0.1937 0.2822 -0.22294 2019 10 24 58780 0.1923 0.2812 -0.22422 2019 10 25 58781 0.1909 0.2803 -0.22571 2019 10 26 58782 0.1895 0.2793 -0.22739 2019 10 27 58783 0.1881 0.2784 -0.22915 2019 10 28 58784 0.1866 0.2775 -0.23087 2019 10 29 58785 0.1851 0.2766 -0.23236 2019 10 30 58786 0.1836 0.2758 -0.23358 2019 10 31 58787 0.1821 0.2749 -0.23453 2019 11 1 58788 0.1806 0.2741 -0.23524 2019 11 2 58789 0.1790 0.2733 -0.23579 2019 11 3 58790 0.1775 0.2726 -0.23624 2019 11 4 58791 0.1759 0.2718 -0.23671 2019 11 5 58792 0.1743 0.2711 -0.23726 2019 11 6 58793 0.1727 0.2704 -0.23786 2019 11 7 58794 0.1711 0.2697 -0.23846 2019 11 8 58795 0.1695 0.2691 -0.23912 2019 11 9 58796 0.1678 0.2685 -0.23989 2019 11 10 58797 0.1662 0.2679 -0.24072 2019 11 11 58798 0.1645 0.2673 -0.24157 2019 11 12 58799 0.1629 0.2668 -0.24244 2019 11 13 58800 0.1612 0.2663 -0.24325 2019 11 14 58801 0.1595 0.2658 -0.24393 2019 11 15 58802 0.1578 0.2653 -0.24447 2019 11 16 58803 0.1561 0.2649 -0.24488 2019 11 17 58804 0.1543 0.2645 -0.24525 2019 11 18 58805 0.1526 0.2641 -0.24570 2019 11 19 58806 0.1509 0.2637 -0.24627 2019 11 20 58807 0.1491 0.2634 -0.24701 2019 11 21 58808 0.1474 0.2631 -0.24794 2019 11 22 58809 0.1456 0.2628 -0.24905 2019 11 23 58810 0.1439 0.2626 -0.25024 2019 11 24 58811 0.1421 0.2624 -0.25146 2019 11 25 58812 0.1403 0.2622 -0.25261 2019 11 26 58813 0.1386 0.2620 -0.25358 2019 11 27 58814 0.1368 0.2619 -0.25427 2019 11 28 58815 0.1350 0.2618 -0.25475 2019 11 29 58816 0.1332 0.2617 -0.25511 2019 11 30 58817 0.1315 0.2617 -0.25541 2019 12 1 58818 0.1297 0.2616 -0.25568 2019 12 2 58819 0.1279 0.2616 -0.25595 2019 12 3 58820 0.1261 0.2617 -0.25627 2019 12 4 58821 0.1243 0.2617 -0.25666 2019 12 5 58822 0.1226 0.2618 -0.25719 2019 12 6 58823 0.1208 0.2619 -0.25786 2019 12 7 58824 0.1190 0.2621 -0.25866 2019 12 8 58825 0.1172 0.2623 -0.25951 2019 12 9 58826 0.1155 0.2625 -0.26036 2019 12 10 58827 0.1137 0.2627 -0.26115 2019 12 11 58828 0.1119 0.2630 -0.26180 2019 12 12 58829 0.1102 0.2632 -0.26229 2019 12 13 58830 0.1084 0.2636 -0.26263 2019 12 14 58831 0.1067 0.2639 -0.26291 2019 12 15 58832 0.1050 0.2643 -0.26318 2019 12 16 58833 0.1032 0.2647 -0.26343 2019 12 17 58834 0.1015 0.2651 -0.26387 2019 12 18 58835 0.0998 0.2655 -0.26452 2019 12 19 58836 0.0981 0.2660 -0.26532 2019 12 20 58837 0.0964 0.2665 -0.26630 2019 12 21 58838 0.0947 0.2671 -0.26730 2019 12 22 58839 0.0931 0.2676 -0.26816 2019 12 23 58840 0.0914 0.2682 -0.26891 2019 12 24 58841 0.0897 0.2688 -0.26950 2019 12 25 58842 0.0881 0.2695 -0.26991 2019 12 26 58843 0.0865 0.2701 -0.27015 2019 12 27 58844 0.0849 0.2708 -0.27030 2019 12 28 58845 0.0833 0.2715 -0.27046 2019 12 29 58846 0.0817 0.2723 -0.27064 2019 12 30 58847 0.0801 0.2731 -0.27092 2019 12 31 58848 0.0786 0.2739 -0.27134 2020 1 1 58849 0.0770 0.2747 -0.27191 2020 1 2 58850 0.0755 0.2755 -0.27261 2020 1 3 58851 0.0740 0.2764 -0.27342 2020 1 4 58852 0.0725 0.2773 -0.27431 2020 1 5 58853 0.0710 0.2782 -0.27526 2020 1 6 58854 0.0696 0.2791 -0.27619 2020 1 7 58855 0.0681 0.2801 -0.27706 2020 1 8 58856 0.0667 0.2811 -0.27783 2020 1 9 58857 0.0653 0.2821 -0.27847 2020 1 10 58858 0.0639 0.2832 -0.27907 2020 1 11 58859 0.0626 0.2842 -0.27978 2020 1 12 58860 0.0612 0.2853 -0.28061 2020 1 13 58861 0.0599 0.2864 -0.28164 2020 1 14 58862 0.0586 0.2875 -0.28293 2020 1 15 58863 0.0573 0.2887 -0.28444 2020 1 16 58864 0.0561 0.2898 -0.28607 2020 1 17 58865 0.0549 0.2910 -0.28768 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) 58480 -105.99 1.19 -6.93 0.08 58481 -106.10 1.19 -7.03 0.08 58482 -106.22 1.19 -7.10 0.08 58483 -106.37 1.22 -7.18 0.06 58484 -106.61 0.92 -7.26 0.04 58485 -106.85 0.92 -7.29 0.04 58486 -106.96 0.92 -7.28 0.04 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58480 0.377 0.472 -0.056 0.077 58481 0.375 0.472 -0.054 0.077 58482 0.372 0.472 -0.052 0.077 58483 0.370 0.486 -0.048 0.060 58484 0.368 0.365 -0.045 0.035 58485 0.366 0.365 -0.041 0.035 58486 0.364 0.365 -0.037 0.035 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).