********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 24 January 2019 Vol. XXXII No. 004 ______________________________________________________________________ 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 18 58501 0.06309 .00009 0.28670 .00009 -0.046720 0.000012 19 1 19 58502 0.06193 .00009 0.28770 .00009 -0.047475 0.000012 19 1 20 58503 0.06093 .00009 0.28862 .00009 -0.048216 0.000010 19 1 21 58504 0.06008 .00009 0.28956 .00009 -0.049010 0.000010 19 1 22 58505 0.05949 .00009 0.29063 .00009 -0.049923 0.000010 19 1 23 58506 0.05896 .00009 0.29206 .00009 -0.050961 0.000065 19 1 24 58507 0.05832 .00009 0.29384 .00009 -0.052184 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 = 0.1222 - 0.0862 cos A - 0.0331 sin A + 0.0292 cos C - 0.0252 sin C y = 0.3573 - 0.0308 cos A + 0.0765 sin A - 0.0252 cos C - 0.0292 sin C UT1-UTC = -0.0690 - 0.00066 (MJD - 58515) - (UT2-UT1) where A = 2*pi*(MJD-58507)/365.25 and C = 2*pi*(MJD-58507)/435. TAI-UTC(MJD 58508) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58507)**0.80 S t = 0.00025 (MJD-58507)**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 25 58508 0.0574 0.2956 -0.05356 2019 1 26 58509 0.0564 0.2973 -0.05500 2019 1 27 58510 0.0553 0.2988 -0.05638 2019 1 28 58511 0.0542 0.3001 -0.05763 2019 1 29 58512 0.0532 0.3012 -0.05869 2019 1 30 58513 0.0522 0.3024 -0.05959 2019 1 31 58514 0.0513 0.3035 -0.06034 2019 2 1 58515 0.0505 0.3047 -0.06099 2019 2 2 58516 0.0497 0.3060 -0.06156 2019 2 3 58517 0.0489 0.3072 -0.06211 2019 2 4 58518 0.0481 0.3085 -0.06270 2019 2 5 58519 0.0474 0.3097 -0.06336 2019 2 6 58520 0.0466 0.3109 -0.06411 2019 2 7 58521 0.0459 0.3122 -0.06498 2019 2 8 58522 0.0452 0.3134 -0.06597 2019 2 9 58523 0.0445 0.3146 -0.06704 2019 2 10 58524 0.0439 0.3159 -0.06816 2019 2 11 58525 0.0433 0.3172 -0.06927 2019 2 12 58526 0.0427 0.3184 -0.07036 2019 2 13 58527 0.0422 0.3197 -0.07138 2019 2 14 58528 0.0417 0.3211 -0.07232 2019 2 15 58529 0.0412 0.3224 -0.07319 2019 2 16 58530 0.0407 0.3238 -0.07401 2019 2 17 58531 0.0403 0.3251 -0.07485 2019 2 18 58532 0.0398 0.3265 -0.07579 2019 2 19 58533 0.0394 0.3279 -0.07689 2019 2 20 58534 0.0390 0.3293 -0.07819 2019 2 21 58535 0.0387 0.3307 -0.07967 2019 2 22 58536 0.0383 0.3321 -0.08123 2019 2 23 58537 0.0380 0.3335 -0.08277 2019 2 24 58538 0.0377 0.3349 -0.08421 2019 2 25 58539 0.0375 0.3363 -0.08547 2019 2 26 58540 0.0372 0.3377 -0.08654 2019 2 27 58541 0.0370 0.3391 -0.08743 2019 2 28 58542 0.0368 0.3405 -0.08818 2019 3 1 58543 0.0367 0.3419 -0.08885 2019 3 2 58544 0.0366 0.3434 -0.08947 2019 3 3 58545 0.0365 0.3448 -0.09010 2019 3 4 58546 0.0364 0.3462 -0.09080 2019 3 5 58547 0.0364 0.3476 -0.09160 2019 3 6 58548 0.0364 0.3491 -0.09254 2019 3 7 58549 0.0364 0.3505 -0.09361 2019 3 8 58550 0.0364 0.3519 -0.09480 2019 3 9 58551 0.0365 0.3534 -0.09608 2019 3 10 58552 0.0366 0.3548 -0.09740 2019 3 11 58553 0.0368 0.3562 -0.09871 2019 3 12 58554 0.0369 0.3577 -0.09996 2019 3 13 58555 0.0371 0.3591 -0.10113 2019 3 14 58556 0.0373 0.3605 -0.10221 2019 3 15 58557 0.0376 0.3619 -0.10322 2019 3 16 58558 0.0379 0.3634 -0.10421 2019 3 17 58559 0.0382 0.3648 -0.10524 2019 3 18 58560 0.0385 0.3662 -0.10641 2019 3 19 58561 0.0389 0.3676 -0.10779 2019 3 20 58562 0.0393 0.3690 -0.10939 2019 3 21 58563 0.0397 0.3704 -0.11115 2019 3 22 58564 0.0401 0.3718 -0.11298 2019 3 23 58565 0.0406 0.3732 -0.11475 2019 3 24 58566 0.0411 0.3746 -0.11637 2019 3 25 58567 0.0416 0.3760 -0.11777 2019 3 26 58568 0.0422 0.3774 -0.11896 2019 3 27 58569 0.0428 0.3787 -0.11996 2019 3 28 58570 0.0434 0.3801 -0.12084 2019 3 29 58571 0.0440 0.3814 -0.12165 2019 3 30 58572 0.0447 0.3828 -0.12245 2019 3 31 58573 0.0454 0.3841 -0.12329 2019 4 1 58574 0.0461 0.3854 -0.12421 2019 4 2 58575 0.0468 0.3867 -0.12525 2019 4 3 58576 0.0476 0.3880 -0.12640 2019 4 4 58577 0.0484 0.3893 -0.12766 2019 4 5 58578 0.0492 0.3906 -0.12900 2019 4 6 58579 0.0500 0.3919 -0.13037 2019 4 7 58580 0.0509 0.3931 -0.13173 2019 4 8 58581 0.0518 0.3944 -0.13302 2019 4 9 58582 0.0527 0.3956 -0.13420 2019 4 10 58583 0.0536 0.3968 -0.13526 2019 4 11 58584 0.0546 0.3980 -0.13621 2019 4 12 58585 0.0556 0.3992 -0.13710 2019 4 13 58586 0.0566 0.4004 -0.13801 2019 4 14 58587 0.0576 0.4015 -0.13901 2019 4 15 58588 0.0587 0.4027 -0.14018 2019 4 16 58589 0.0598 0.4038 -0.14154 2019 4 17 58590 0.0609 0.4049 -0.14309 2019 4 18 58591 0.0620 0.4060 -0.14475 2019 4 19 58592 0.0631 0.4071 -0.14641 2019 4 20 58593 0.0643 0.4081 -0.14796 2019 4 21 58594 0.0655 0.4092 -0.14932 2019 4 22 58595 0.0667 0.4102 -0.15045 2019 4 23 58596 0.0679 0.4112 -0.15138 2019 4 24 58597 0.0691 0.4122 -0.15215 2019 4 25 58598 0.0704 0.4132 -0.15281 2019 4 26 58599 0.0717 0.4141 -0.15343 2019 4 27 58600 0.0730 0.4151 -0.15406 2019 4 28 58601 0.0743 0.4160 -0.15476 2019 4 29 58602 0.0756 0.4169 -0.15554 2019 4 30 58603 0.0770 0.4178 -0.15644 2019 5 1 58604 0.0784 0.4186 -0.15744 2019 5 2 58605 0.0797 0.4194 -0.15852 2019 5 3 58606 0.0811 0.4203 -0.15966 2019 5 4 58607 0.0826 0.4210 -0.16079 2019 5 5 58608 0.0840 0.4218 -0.16187 2019 5 6 58609 0.0854 0.4226 -0.16284 2019 5 7 58610 0.0869 0.4233 -0.16369 2019 5 8 58611 0.0884 0.4240 -0.16441 2019 5 9 58612 0.0898 0.4247 -0.16505 2019 5 10 58613 0.0913 0.4253 -0.16567 2019 5 11 58614 0.0929 0.4260 -0.16635 2019 5 12 58615 0.0944 0.4266 -0.16715 2019 5 13 58616 0.0959 0.4272 -0.16811 2019 5 14 58617 0.0975 0.4277 -0.16923 2019 5 15 58618 0.0990 0.4283 -0.17047 2019 5 16 58619 0.1006 0.4288 -0.17175 2019 5 17 58620 0.1021 0.4293 -0.17296 2019 5 18 58621 0.1037 0.4298 -0.17401 2019 5 19 58622 0.1053 0.4302 -0.17486 2019 5 20 58623 0.1069 0.4307 -0.17549 2019 5 21 58624 0.1085 0.4311 -0.17593 2019 5 22 58625 0.1102 0.4314 -0.17623 2019 5 23 58626 0.1118 0.4318 -0.17645 2019 5 24 58627 0.1134 0.4321 -0.17665 2019 5 25 58628 0.1150 0.4324 -0.17689 2019 5 26 58629 0.1167 0.4327 -0.17719 2019 5 27 58630 0.1183 0.4329 -0.17759 2019 5 28 58631 0.1200 0.4332 -0.17808 2019 5 29 58632 0.1216 0.4334 -0.17865 2019 5 30 58633 0.1233 0.4335 -0.17928 2019 5 31 58634 0.1249 0.4337 -0.17991 2019 6 1 58635 0.1266 0.4338 -0.18051 2019 6 2 58636 0.1283 0.4339 -0.18102 2019 6 3 58637 0.1299 0.4340 -0.18140 2019 6 4 58638 0.1316 0.4340 -0.18163 2019 6 5 58639 0.1333 0.4340 -0.18176 2019 6 6 58640 0.1349 0.4340 -0.18183 2019 6 7 58641 0.1366 0.4340 -0.18194 2019 6 8 58642 0.1382 0.4340 -0.18215 2019 6 9 58643 0.1399 0.4339 -0.18251 2019 6 10 58644 0.1416 0.4338 -0.18303 2019 6 11 58645 0.1432 0.4336 -0.18366 2019 6 12 58646 0.1449 0.4335 -0.18433 2019 6 13 58647 0.1465 0.4333 -0.18496 2019 6 14 58648 0.1482 0.4331 -0.18546 2019 6 15 58649 0.1498 0.4329 -0.18578 2019 6 16 58650 0.1514 0.4326 -0.18590 2019 6 17 58651 0.1531 0.4323 -0.18583 2019 6 18 58652 0.1547 0.4320 -0.18562 2019 6 19 58653 0.1563 0.4317 -0.18532 2019 6 20 58654 0.1579 0.4313 -0.18499 2019 6 21 58655 0.1595 0.4309 -0.18469 2019 6 22 58656 0.1611 0.4305 -0.18445 2019 6 23 58657 0.1627 0.4301 -0.18431 2019 6 24 58658 0.1642 0.4296 -0.18427 2019 6 25 58659 0.1658 0.4291 -0.18433 2019 6 26 58660 0.1674 0.4286 -0.18445 2019 6 27 58661 0.1689 0.4281 -0.18460 2019 6 28 58662 0.1704 0.4275 -0.18475 2019 6 29 58663 0.1719 0.4270 -0.18485 2019 6 30 58664 0.1734 0.4264 -0.18484 2019 7 1 58665 0.1749 0.4257 -0.18472 2019 7 2 58666 0.1764 0.4251 -0.18449 2019 7 3 58667 0.1779 0.4244 -0.18419 2019 7 4 58668 0.1793 0.4237 -0.18391 2019 7 5 58669 0.1808 0.4230 -0.18374 2019 7 6 58670 0.1822 0.4222 -0.18374 2019 7 7 58671 0.1836 0.4215 -0.18392 2019 7 8 58672 0.1850 0.4207 -0.18423 2019 7 9 58673 0.1864 0.4199 -0.18460 2019 7 10 58674 0.1877 0.4191 -0.18493 2019 7 11 58675 0.1891 0.4182 -0.18516 2019 7 12 58676 0.1904 0.4173 -0.18521 2019 7 13 58677 0.1917 0.4164 -0.18507 2019 7 14 58678 0.1930 0.4155 -0.18475 2019 7 15 58679 0.1943 0.4146 -0.18429 2019 7 16 58680 0.1955 0.4136 -0.18374 2019 7 17 58681 0.1968 0.4127 -0.18316 2019 7 18 58682 0.1980 0.4117 -0.18260 2019 7 19 58683 0.1992 0.4106 -0.18210 2019 7 20 58684 0.2003 0.4096 -0.18169 2019 7 21 58685 0.2015 0.4086 -0.18139 2019 7 22 58686 0.2026 0.4075 -0.18118 2019 7 23 58687 0.2037 0.4064 -0.18106 2019 7 24 58688 0.2048 0.4053 -0.18097 2019 7 25 58689 0.2059 0.4042 -0.18089 2019 7 26 58690 0.2069 0.4030 -0.18077 2019 7 27 58691 0.2079 0.4019 -0.18057 2019 7 28 58692 0.2089 0.4007 -0.18027 2019 7 29 58693 0.2099 0.3995 -0.17986 2019 7 30 58694 0.2108 0.3983 -0.17937 2019 7 31 58695 0.2118 0.3971 -0.17888 2019 8 1 58696 0.2127 0.3959 -0.17848 2019 8 2 58697 0.2135 0.3946 -0.17828 2019 8 3 58698 0.2144 0.3934 -0.17832 2019 8 4 58699 0.2152 0.3921 -0.17859 2019 8 5 58700 0.2160 0.3908 -0.17901 2019 8 6 58701 0.2168 0.3895 -0.17950 2019 8 7 58702 0.2175 0.3882 -0.17993 2019 8 8 58703 0.2182 0.3869 -0.18025 2019 8 9 58704 0.2189 0.3855 -0.18042 2019 8 10 58705 0.2196 0.3842 -0.18045 2019 8 11 58706 0.2202 0.3828 -0.18036 2019 8 12 58707 0.2208 0.3814 -0.18022 2019 8 13 58708 0.2214 0.3801 -0.18006 2019 8 14 58709 0.2220 0.3787 -0.17994 2019 8 15 58710 0.2225 0.3773 -0.17991 2019 8 16 58711 0.2230 0.3759 -0.17999 2019 8 17 58712 0.2235 0.3744 -0.18019 2019 8 18 58713 0.2239 0.3730 -0.18051 2019 8 19 58714 0.2243 0.3716 -0.18091 2019 8 20 58715 0.2247 0.3701 -0.18136 2019 8 21 58716 0.2251 0.3687 -0.18182 2019 8 22 58717 0.2254 0.3672 -0.18225 2019 8 23 58718 0.2257 0.3658 -0.18260 2019 8 24 58719 0.2260 0.3643 -0.18286 2019 8 25 58720 0.2262 0.3629 -0.18303 2019 8 26 58721 0.2264 0.3614 -0.18312 2019 8 27 58722 0.2266 0.3599 -0.18317 2019 8 28 58723 0.2268 0.3584 -0.18325 2019 8 29 58724 0.2269 0.3569 -0.18342 2019 8 30 58725 0.2270 0.3555 -0.18378 2019 8 31 58726 0.2270 0.3540 -0.18431 2019 9 1 58727 0.2271 0.3525 -0.18498 2019 9 2 58728 0.2271 0.3510 -0.18569 2019 9 3 58729 0.2271 0.3495 -0.18635 2019 9 4 58730 0.2270 0.3480 -0.18686 2019 9 5 58731 0.2269 0.3465 -0.18718 2019 9 6 58732 0.2268 0.3450 -0.18734 2019 9 7 58733 0.2267 0.3435 -0.18735 2019 9 8 58734 0.2265 0.3421 -0.18717 2019 9 9 58735 0.2263 0.3406 -0.18691 2019 9 10 58736 0.2261 0.3391 -0.18672 2019 9 11 58737 0.2258 0.3376 -0.18659 2019 9 12 58738 0.2255 0.3361 -0.18664 2019 9 13 58739 0.2252 0.3347 -0.18686 2019 9 14 58740 0.2248 0.3332 -0.18728 2019 9 15 58741 0.2245 0.3317 -0.18787 2019 9 16 58742 0.2241 0.3303 -0.18858 2019 9 17 58743 0.2236 0.3288 -0.18933 2019 9 18 58744 0.2232 0.3274 -0.19005 2019 9 19 58745 0.2227 0.3259 -0.19077 2019 9 20 58746 0.2222 0.3245 -0.19144 2019 9 21 58747 0.2216 0.3231 -0.19207 2019 9 22 58748 0.2210 0.3216 -0.19266 2019 9 23 58749 0.2204 0.3202 -0.19323 2019 9 24 58750 0.2198 0.3188 -0.19388 2019 9 25 58751 0.2191 0.3174 -0.19470 2019 9 26 58752 0.2184 0.3161 -0.19576 2019 9 27 58753 0.2177 0.3147 -0.19704 2019 9 28 58754 0.2170 0.3133 -0.19857 2019 9 29 58755 0.2162 0.3120 -0.20027 2019 9 30 58756 0.2154 0.3106 -0.20200 2019 10 1 58757 0.2146 0.3093 -0.20366 2019 10 2 58758 0.2137 0.3080 -0.20511 2019 10 3 58759 0.2129 0.3067 -0.20633 2019 10 4 58760 0.2120 0.3054 -0.20732 2019 10 5 58761 0.2110 0.3041 -0.20815 2019 10 6 58762 0.2101 0.3029 -0.20883 2019 10 7 58763 0.2091 0.3016 -0.20949 2019 10 8 58764 0.2081 0.3004 -0.21023 2019 10 9 58765 0.2071 0.2992 -0.21109 2019 10 10 58766 0.2060 0.2980 -0.21202 2019 10 11 58767 0.2050 0.2968 -0.21301 2019 10 12 58768 0.2039 0.2956 -0.21411 2019 10 13 58769 0.2028 0.2944 -0.21530 2019 10 14 58770 0.2016 0.2933 -0.21647 2019 10 15 58771 0.2005 0.2922 -0.21756 2019 10 16 58772 0.1993 0.2911 -0.21856 2019 10 17 58773 0.1981 0.2900 -0.21948 2019 10 18 58774 0.1968 0.2889 -0.22023 2019 10 19 58775 0.1956 0.2879 -0.22090 2019 10 20 58776 0.1943 0.2868 -0.22144 2019 10 21 58777 0.1930 0.2858 -0.22200 2019 10 22 58778 0.1917 0.2849 -0.22266 2019 10 23 58779 0.1904 0.2839 -0.22350 2019 10 24 58780 0.1890 0.2829 -0.22462 2019 10 25 58781 0.1877 0.2820 -0.22595 2019 10 26 58782 0.1863 0.2811 -0.22751 2019 10 27 58783 0.1849 0.2802 -0.22922 2019 10 28 58784 0.1835 0.2793 -0.23090 2019 10 29 58785 0.1820 0.2785 -0.23242 2019 10 30 58786 0.1806 0.2777 -0.23375 2019 10 31 58787 0.1791 0.2769 -0.23488 2019 11 1 58788 0.1776 0.2761 -0.23581 2019 11 2 58789 0.1761 0.2753 -0.23659 2019 11 3 58790 0.1746 0.2746 -0.23733 2019 11 4 58791 0.1731 0.2739 -0.23809 2019 11 5 58792 0.1715 0.2732 -0.23887 2019 11 6 58793 0.1700 0.2726 -0.23976 2019 11 7 58794 0.1684 0.2719 -0.24081 2019 11 8 58795 0.1668 0.2713 -0.24195 2019 11 9 58796 0.1652 0.2707 -0.24316 2019 11 10 58797 0.1636 0.2702 -0.24440 2019 11 11 58798 0.1620 0.2696 -0.24564 2019 11 12 58799 0.1604 0.2691 -0.24676 2019 11 13 58800 0.1587 0.2686 -0.24774 2019 11 14 58801 0.1571 0.2682 -0.24857 2019 11 15 58802 0.1554 0.2677 -0.24923 2019 11 16 58803 0.1538 0.2673 -0.24977 2019 11 17 58804 0.1521 0.2669 -0.25021 2019 11 18 58805 0.1504 0.2666 -0.25070 2019 11 19 58806 0.1487 0.2663 -0.25133 2019 11 20 58807 0.1470 0.2659 -0.25209 2019 11 21 58808 0.1453 0.2657 -0.25295 2019 11 22 58809 0.1436 0.2654 -0.25396 2019 11 23 58810 0.1419 0.2652 -0.25512 2019 11 24 58811 0.1402 0.2650 -0.25630 2019 11 25 58812 0.1385 0.2648 -0.25739 2019 11 26 58813 0.1368 0.2647 -0.25837 2019 11 27 58814 0.1350 0.2646 -0.25915 2019 11 28 58815 0.1333 0.2645 -0.25971 2019 11 29 58816 0.1316 0.2644 -0.26009 2019 11 30 58817 0.1299 0.2644 -0.26035 2019 12 1 58818 0.1281 0.2643 -0.26060 2019 12 2 58819 0.1264 0.2644 -0.26091 2019 12 3 58820 0.1247 0.2644 -0.26132 2019 12 4 58821 0.1229 0.2645 -0.26181 2019 12 5 58822 0.1212 0.2646 -0.26238 2019 12 6 58823 0.1195 0.2647 -0.26303 2019 12 7 58824 0.1178 0.2648 -0.26368 2019 12 8 58825 0.1160 0.2650 -0.26438 2019 12 9 58826 0.1143 0.2652 -0.26507 2019 12 10 58827 0.1126 0.2655 -0.26569 2019 12 11 58828 0.1109 0.2657 -0.26616 2019 12 12 58829 0.1092 0.2660 -0.26650 2019 12 13 58830 0.1075 0.2663 -0.26677 2019 12 14 58831 0.1058 0.2667 -0.26701 2019 12 15 58832 0.1041 0.2670 -0.26724 2019 12 16 58833 0.1025 0.2674 -0.26754 2019 12 17 58834 0.1008 0.2679 -0.26796 2019 12 18 58835 0.0991 0.2683 -0.26856 2019 12 19 58836 0.0975 0.2688 -0.26936 2019 12 20 58837 0.0958 0.2693 -0.27035 2019 12 21 58838 0.0942 0.2698 -0.27142 2019 12 22 58839 0.0926 0.2704 -0.27247 2019 12 23 58840 0.0910 0.2709 -0.27341 2019 12 24 58841 0.0894 0.2715 -0.27415 2019 12 25 58842 0.0878 0.2722 -0.27465 2019 12 26 58843 0.0862 0.2728 -0.27496 2019 12 27 58844 0.0846 0.2735 -0.27514 2019 12 28 58845 0.0831 0.2742 -0.27528 2019 12 29 58846 0.0815 0.2749 -0.27542 2019 12 30 58847 0.0800 0.2757 -0.27553 2019 12 31 58848 0.0785 0.2765 -0.27576 2020 1 1 58849 0.0770 0.2773 -0.27611 2020 1 2 58850 0.0755 0.2781 -0.27653 2020 1 3 58851 0.0741 0.2790 -0.27707 2020 1 4 58852 0.0726 0.2798 -0.27763 2020 1 5 58853 0.0712 0.2807 -0.27812 2020 1 6 58854 0.0698 0.2816 -0.27860 2020 1 7 58855 0.0684 0.2826 -0.27904 2020 1 8 58856 0.0670 0.2836 -0.27938 2020 1 9 58857 0.0657 0.2845 -0.27962 2020 1 10 58858 0.0644 0.2856 -0.27980 2020 1 11 58859 0.0630 0.2866 -0.28002 2020 1 12 58860 0.0618 0.2876 -0.28033 2020 1 13 58861 0.0605 0.2887 -0.28082 2020 1 14 58862 0.0592 0.2898 -0.28158 2020 1 15 58863 0.0580 0.2909 -0.28257 2020 1 16 58864 0.0568 0.2921 -0.28373 2020 1 17 58865 0.0556 0.2932 -0.28498 2020 1 18 58866 0.0544 0.2944 -0.28621 2020 1 19 58867 0.0533 0.2956 -0.28737 2020 1 20 58868 0.0522 0.2968 -0.28837 2020 1 21 58869 0.0511 0.2980 -0.28920 2020 1 22 58870 0.0500 0.2993 -0.28988 2020 1 23 58871 0.0490 0.3005 -0.29043 2020 1 24 58872 0.0479 0.3018 -0.29098 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) 58487 -106.81 0.94 -7.32 0.07 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58487 0.376 0.374 -0.060 0.068 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).