********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 10 January 2019 Vol. XXXII No. 002 ______________________________________________________________________ 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 = +0.0 seconds beginning 21 Sep 2018 at 0000 UTC = -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 4 58487 0.07912 .00009 0.27254 .00009 -0.038289 0.000025 19 1 5 58488 0.07650 .00009 0.27261 .00009 -0.038739 0.000014 19 1 6 58489 0.07417 .00009 0.27289 .00009 -0.039123 0.000016 19 1 7 58490 0.07233 .00009 0.27333 .00009 -0.039436 0.000018 19 1 8 58491 0.07119 .00009 0.27387 .00009 -0.039725 0.000020 19 1 9 58492 0.07052 .00009 0.27473 .00009 -0.040090 0.000018 19 1 10 58493 0.06978 .00009 0.27580 .00009 -0.040556 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 = 0.1135 - 0.0742 cos A - 0.0483 sin A + 0.0344 cos C - 0.0233 sin C y = 0.3517 - 0.0448 cos A + 0.0653 sin A - 0.0233 cos C - 0.0344 sin C UT1-UTC = -0.0538 - 0.00066 (MJD - 58501) - (UT2-UT1) where A = 2*pi*(MJD-58493)/365.25 and C = 2*pi*(MJD-58493)/435. TAI-UTC(MJD 58494) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58493)**0.80 S t = 0.00025 (MJD-58493)**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 11 58494 0.0687 0.2770 -0.04107 2019 1 12 58495 0.0675 0.2781 -0.04166 2019 1 13 58496 0.0661 0.2792 -0.04232 2019 1 14 58497 0.0648 0.2802 -0.04307 2019 1 15 58498 0.0635 0.2812 -0.04389 2019 1 16 58499 0.0623 0.2822 -0.04474 2019 1 17 58500 0.0611 0.2833 -0.04556 2019 1 18 58501 0.0600 0.2844 -0.04629 2019 1 19 58502 0.0588 0.2856 -0.04693 2019 1 20 58503 0.0576 0.2869 -0.04749 2019 1 21 58504 0.0564 0.2881 -0.04804 2019 1 22 58505 0.0551 0.2892 -0.04869 2019 1 23 58506 0.0538 0.2904 -0.04954 2019 1 24 58507 0.0525 0.2916 -0.05058 2019 1 25 58508 0.0512 0.2929 -0.05179 2019 1 26 58509 0.0500 0.2941 -0.05305 2019 1 27 58510 0.0488 0.2953 -0.05428 2019 1 28 58511 0.0477 0.2966 -0.05537 2019 1 29 58512 0.0467 0.2978 -0.05627 2019 1 30 58513 0.0457 0.2990 -0.05699 2019 1 31 58514 0.0447 0.3002 -0.05754 2019 2 1 58515 0.0437 0.3015 -0.05795 2019 2 2 58516 0.0428 0.3028 -0.05829 2019 2 3 58517 0.0419 0.3041 -0.05862 2019 2 4 58518 0.0410 0.3055 -0.05898 2019 2 5 58519 0.0402 0.3068 -0.05942 2019 2 6 58520 0.0394 0.3082 -0.05996 2019 2 7 58521 0.0386 0.3096 -0.06064 2019 2 8 58522 0.0379 0.3109 -0.06142 2019 2 9 58523 0.0372 0.3124 -0.06231 2019 2 10 58524 0.0365 0.3138 -0.06325 2019 2 11 58525 0.0358 0.3152 -0.06423 2019 2 12 58526 0.0351 0.3167 -0.06521 2019 2 13 58527 0.0345 0.3182 -0.06616 2019 2 14 58528 0.0339 0.3197 -0.06705 2019 2 15 58529 0.0333 0.3212 -0.06787 2019 2 16 58530 0.0328 0.3227 -0.06865 2019 2 17 58531 0.0323 0.3242 -0.06946 2019 2 18 58532 0.0318 0.3257 -0.07037 2019 2 19 58533 0.0313 0.3272 -0.07147 2019 2 20 58534 0.0309 0.3287 -0.07278 2019 2 21 58535 0.0305 0.3303 -0.07429 2019 2 22 58536 0.0301 0.3318 -0.07589 2019 2 23 58537 0.0298 0.3334 -0.07747 2019 2 24 58538 0.0295 0.3349 -0.07893 2019 2 25 58539 0.0292 0.3365 -0.08021 2019 2 26 58540 0.0289 0.3380 -0.08129 2019 2 27 58541 0.0287 0.3396 -0.08220 2019 2 28 58542 0.0285 0.3412 -0.08296 2019 3 1 58543 0.0284 0.3427 -0.08365 2019 3 2 58544 0.0283 0.3443 -0.08430 2019 3 3 58545 0.0282 0.3459 -0.08496 2019 3 4 58546 0.0281 0.3475 -0.08569 2019 3 5 58547 0.0281 0.3491 -0.08651 2019 3 6 58548 0.0281 0.3507 -0.08744 2019 3 7 58549 0.0281 0.3523 -0.08849 2019 3 8 58550 0.0282 0.3538 -0.08965 2019 3 9 58551 0.0283 0.3554 -0.09088 2019 3 10 58552 0.0284 0.3570 -0.09215 2019 3 11 58553 0.0286 0.3586 -0.09341 2019 3 12 58554 0.0287 0.3602 -0.09461 2019 3 13 58555 0.0290 0.3618 -0.09573 2019 3 14 58556 0.0292 0.3634 -0.09676 2019 3 15 58557 0.0295 0.3650 -0.09772 2019 3 16 58558 0.0298 0.3665 -0.09866 2019 3 17 58559 0.0301 0.3681 -0.09965 2019 3 18 58560 0.0305 0.3697 -0.10080 2019 3 19 58561 0.0309 0.3713 -0.10214 2019 3 20 58562 0.0313 0.3728 -0.10370 2019 3 21 58563 0.0318 0.3744 -0.10543 2019 3 22 58564 0.0323 0.3759 -0.10721 2019 3 23 58565 0.0328 0.3775 -0.10893 2019 3 24 58566 0.0333 0.3790 -0.11050 2019 3 25 58567 0.0339 0.3805 -0.11186 2019 3 26 58568 0.0345 0.3821 -0.11301 2019 3 27 58569 0.0351 0.3836 -0.11398 2019 3 28 58570 0.0358 0.3851 -0.11482 2019 3 29 58571 0.0365 0.3866 -0.11560 2019 3 30 58572 0.0372 0.3880 -0.11636 2019 3 31 58573 0.0380 0.3895 -0.11717 2019 4 1 58574 0.0387 0.3910 -0.11806 2019 4 2 58575 0.0395 0.3924 -0.11906 2019 4 3 58576 0.0404 0.3939 -0.12018 2019 4 4 58577 0.0412 0.3953 -0.12141 2019 4 5 58578 0.0421 0.3967 -0.12272 2019 4 6 58579 0.0430 0.3981 -0.12408 2019 4 7 58580 0.0440 0.3995 -0.12542 2019 4 8 58581 0.0449 0.4009 -0.12671 2019 4 9 58582 0.0459 0.4022 -0.12789 2019 4 10 58583 0.0469 0.4036 -0.12897 2019 4 11 58584 0.0480 0.4049 -0.12994 2019 4 12 58585 0.0490 0.4062 -0.13086 2019 4 13 58586 0.0501 0.4075 -0.13181 2019 4 14 58587 0.0513 0.4088 -0.13285 2019 4 15 58588 0.0524 0.4101 -0.13407 2019 4 16 58589 0.0536 0.4113 -0.13549 2019 4 17 58590 0.0547 0.4126 -0.13712 2019 4 18 58591 0.0560 0.4138 -0.13885 2019 4 19 58592 0.0572 0.4150 -0.14060 2019 4 20 58593 0.0585 0.4162 -0.14224 2019 4 21 58594 0.0597 0.4173 -0.14370 2019 4 22 58595 0.0610 0.4185 -0.14494 2019 4 23 58596 0.0624 0.4196 -0.14597 2019 4 24 58597 0.0637 0.4207 -0.14684 2019 4 25 58598 0.0651 0.4218 -0.14760 2019 4 26 58599 0.0664 0.4228 -0.14832 2019 4 27 58600 0.0678 0.4239 -0.14904 2019 4 28 58601 0.0693 0.4249 -0.14981 2019 4 29 58602 0.0707 0.4259 -0.15064 2019 4 30 58603 0.0722 0.4269 -0.15157 2019 5 1 58604 0.0736 0.4278 -0.15260 2019 5 2 58605 0.0751 0.4287 -0.15370 2019 5 3 58606 0.0766 0.4297 -0.15486 2019 5 4 58607 0.0782 0.4305 -0.15601 2019 5 5 58608 0.0797 0.4314 -0.15709 2019 5 6 58609 0.0813 0.4322 -0.15807 2019 5 7 58610 0.0829 0.4331 -0.15891 2019 5 8 58611 0.0844 0.4339 -0.15962 2019 5 9 58612 0.0861 0.4346 -0.16024 2019 5 10 58613 0.0877 0.4354 -0.16083 2019 5 11 58614 0.0893 0.4361 -0.16148 2019 5 12 58615 0.0909 0.4368 -0.16225 2019 5 13 58616 0.0926 0.4374 -0.16318 2019 5 14 58617 0.0943 0.4381 -0.16428 2019 5 15 58618 0.0960 0.4387 -0.16551 2019 5 16 58619 0.0976 0.4393 -0.16676 2019 5 17 58620 0.0993 0.4399 -0.16795 2019 5 18 58621 0.1011 0.4404 -0.16899 2019 5 19 58622 0.1028 0.4409 -0.16982 2019 5 20 58623 0.1045 0.4414 -0.17044 2019 5 21 58624 0.1063 0.4419 -0.17087 2019 5 22 58625 0.1080 0.4423 -0.17116 2019 5 23 58626 0.1098 0.4427 -0.17137 2019 5 24 58627 0.1115 0.4431 -0.17158 2019 5 25 58628 0.1133 0.4434 -0.17182 2019 5 26 58629 0.1151 0.4438 -0.17213 2019 5 27 58630 0.1168 0.4441 -0.17254 2019 5 28 58631 0.1186 0.4443 -0.17304 2019 5 29 58632 0.1204 0.4446 -0.17363 2019 5 30 58633 0.1222 0.4448 -0.17428 2019 5 31 58634 0.1240 0.4450 -0.17494 2019 6 1 58635 0.1258 0.4451 -0.17556 2019 6 2 58636 0.1276 0.4453 -0.17609 2019 6 3 58637 0.1294 0.4454 -0.17650 2019 6 4 58638 0.1312 0.4454 -0.17677 2019 6 5 58639 0.1330 0.4455 -0.17692 2019 6 6 58640 0.1348 0.4455 -0.17703 2019 6 7 58641 0.1366 0.4455 -0.17717 2019 6 8 58642 0.1384 0.4455 -0.17741 2019 6 9 58643 0.1402 0.4454 -0.17781 2019 6 10 58644 0.1420 0.4453 -0.17836 2019 6 11 58645 0.1438 0.4452 -0.17903 2019 6 12 58646 0.1456 0.4451 -0.17974 2019 6 13 58647 0.1473 0.4449 -0.18040 2019 6 14 58648 0.1491 0.4447 -0.18094 2019 6 15 58649 0.1509 0.4444 -0.18130 2019 6 16 58650 0.1527 0.4442 -0.18145 2019 6 17 58651 0.1544 0.4439 -0.18141 2019 6 18 58652 0.1562 0.4436 -0.18122 2019 6 19 58653 0.1579 0.4432 -0.18094 2019 6 20 58654 0.1597 0.4429 -0.18064 2019 6 21 58655 0.1614 0.4425 -0.18035 2019 6 22 58656 0.1632 0.4421 -0.18013 2019 6 23 58657 0.1649 0.4416 -0.18000 2019 6 24 58658 0.1666 0.4411 -0.17997 2019 6 25 58659 0.1683 0.4406 -0.18003 2019 6 26 58660 0.1700 0.4401 -0.18015 2019 6 27 58661 0.1716 0.4395 -0.18031 2019 6 28 58662 0.1733 0.4390 -0.18045 2019 6 29 58663 0.1750 0.4384 -0.18054 2019 6 30 58664 0.1766 0.4377 -0.18053 2019 7 1 58665 0.1782 0.4371 -0.18040 2019 7 2 58666 0.1798 0.4364 -0.18015 2019 7 3 58667 0.1814 0.4357 -0.17984 2019 7 4 58668 0.1830 0.4349 -0.17955 2019 7 5 58669 0.1846 0.4342 -0.17936 2019 7 6 58670 0.1861 0.4334 -0.17933 2019 7 7 58671 0.1877 0.4326 -0.17948 2019 7 8 58672 0.1892 0.4317 -0.17976 2019 7 9 58673 0.1907 0.4309 -0.18009 2019 7 10 58674 0.1922 0.4300 -0.18038 2019 7 11 58675 0.1937 0.4291 -0.18056 2019 7 12 58676 0.1951 0.4282 -0.18056 2019 7 13 58677 0.1965 0.4272 -0.18036 2019 7 14 58678 0.1980 0.4262 -0.17997 2019 7 15 58679 0.1993 0.4252 -0.17944 2019 7 16 58680 0.2007 0.4242 -0.17882 2019 7 17 58681 0.2021 0.4232 -0.17818 2019 7 18 58682 0.2034 0.4221 -0.17757 2019 7 19 58683 0.2047 0.4210 -0.17705 2019 7 20 58684 0.2060 0.4199 -0.17666 2019 7 21 58685 0.2073 0.4188 -0.17643 2019 7 22 58686 0.2085 0.4177 -0.17635 2019 7 23 58687 0.2097 0.4165 -0.17641 2019 7 24 58688 0.2109 0.4153 -0.17658 2019 7 25 58689 0.2121 0.4141 -0.17679 2019 7 26 58690 0.2133 0.4129 -0.17701 2019 7 27 58691 0.2144 0.4116 -0.17718 2019 7 28 58692 0.2155 0.4104 -0.17726 2019 7 29 58693 0.2166 0.4091 -0.17723 2019 7 30 58694 0.2176 0.4078 -0.17712 2019 7 31 58695 0.2186 0.4065 -0.17698 2019 8 1 58696 0.2196 0.4052 -0.17689 2019 8 2 58697 0.2206 0.4038 -0.17694 2019 8 3 58698 0.2216 0.4025 -0.17714 2019 8 4 58699 0.2225 0.4011 -0.17749 2019 8 5 58700 0.2234 0.3997 -0.17789 2019 8 6 58701 0.2242 0.3983 -0.17823 2019 8 7 58702 0.2251 0.3969 -0.17842 2019 8 8 58703 0.2259 0.3955 -0.17842 2019 8 9 58704 0.2267 0.3940 -0.17820 2019 8 10 58705 0.2274 0.3926 -0.17780 2019 8 11 58706 0.2281 0.3911 -0.17726 2019 8 12 58707 0.2288 0.3896 -0.17663 2019 8 13 58708 0.2295 0.3881 -0.17597 2019 8 14 58709 0.2301 0.3866 -0.17534 2019 8 15 58710 0.2308 0.3851 -0.17483 2019 8 16 58711 0.2313 0.3836 -0.17447 2019 8 17 58712 0.2319 0.3820 -0.17430 2019 8 18 58713 0.2324 0.3805 -0.17432 2019 8 19 58714 0.2329 0.3789 -0.17447 2019 8 20 58715 0.2333 0.3774 -0.17470 2019 8 21 58716 0.2338 0.3758 -0.17496 2019 8 22 58717 0.2342 0.3742 -0.17524 2019 8 23 58718 0.2345 0.3727 -0.17549 2019 8 24 58719 0.2349 0.3711 -0.17573 2019 8 25 58720 0.2352 0.3695 -0.17592 2019 8 26 58721 0.2355 0.3679 -0.17606 2019 8 27 58722 0.2357 0.3663 -0.17622 2019 8 28 58723 0.2359 0.3647 -0.17651 2019 8 29 58724 0.2361 0.3631 -0.17699 2019 8 30 58725 0.2362 0.3614 -0.17767 2019 8 31 58726 0.2364 0.3598 -0.17860 2019 9 1 58727 0.2364 0.3582 -0.17975 2019 9 2 58728 0.2365 0.3566 -0.18097 2019 9 3 58729 0.2365 0.3549 -0.18218 2019 9 4 58730 0.2365 0.3533 -0.18322 2019 9 5 58731 0.2365 0.3517 -0.18407 2019 9 6 58732 0.2364 0.3501 -0.18467 2019 9 7 58733 0.2363 0.3484 -0.18511 2019 9 8 58734 0.2362 0.3468 -0.18537 2019 9 9 58735 0.2360 0.3452 -0.18557 2019 9 10 58736 0.2358 0.3436 -0.18583 2019 9 11 58737 0.2356 0.3420 -0.18620 2019 9 12 58738 0.2353 0.3403 -0.18662 2019 9 13 58739 0.2350 0.3387 -0.18710 2019 9 14 58740 0.2347 0.3371 -0.18771 2019 9 15 58741 0.2344 0.3355 -0.18843 2019 9 16 58742 0.2340 0.3339 -0.18918 2019 9 17 58743 0.2336 0.3323 -0.18989 2019 9 18 58744 0.2331 0.3307 -0.19056 2019 9 19 58745 0.2326 0.3291 -0.19118 2019 9 20 58746 0.2321 0.3276 -0.19167 2019 9 21 58747 0.2316 0.3260 -0.19209 2019 9 22 58748 0.2310 0.3244 -0.19238 2019 9 23 58749 0.2304 0.3229 -0.19266 2019 9 24 58750 0.2298 0.3213 -0.19299 2019 9 25 58751 0.2292 0.3198 -0.19348 2019 9 26 58752 0.2285 0.3183 -0.19422 2019 9 27 58753 0.2278 0.3168 -0.19520 2019 9 28 58754 0.2270 0.3153 -0.19646 2019 9 29 58755 0.2262 0.3138 -0.19794 2019 9 30 58756 0.2254 0.3123 -0.19945 2019 10 1 58757 0.2246 0.3108 -0.20085 2019 10 2 58758 0.2237 0.3094 -0.20208 2019 10 3 58759 0.2229 0.3079 -0.20312 2019 10 4 58760 0.2219 0.3065 -0.20394 2019 10 5 58761 0.2210 0.3051 -0.20460 2019 10 6 58762 0.2200 0.3037 -0.20519 2019 10 7 58763 0.2190 0.3023 -0.20577 2019 10 8 58764 0.2180 0.3009 -0.20636 2019 10 9 58765 0.2170 0.2996 -0.20704 2019 10 10 58766 0.2159 0.2982 -0.20791 2019 10 11 58767 0.2148 0.2969 -0.20887 2019 10 12 58768 0.2137 0.2956 -0.20993 2019 10 13 58769 0.2125 0.2943 -0.21107 2019 10 14 58770 0.2114 0.2930 -0.21224 2019 10 15 58771 0.2102 0.2918 -0.21333 2019 10 16 58772 0.2089 0.2905 -0.21433 2019 10 17 58773 0.2077 0.2893 -0.21520 2019 10 18 58774 0.2064 0.2881 -0.21593 2019 10 19 58775 0.2051 0.2869 -0.21653 2019 10 20 58776 0.2038 0.2858 -0.21700 2019 10 21 58777 0.2025 0.2846 -0.21749 2019 10 22 58778 0.2011 0.2835 -0.21807 2019 10 23 58779 0.1998 0.2824 -0.21876 2019 10 24 58780 0.1984 0.2813 -0.21958 2019 10 25 58781 0.1969 0.2803 -0.22060 2019 10 26 58782 0.1955 0.2793 -0.22184 2019 10 27 58783 0.1940 0.2782 -0.22319 2019 10 28 58784 0.1926 0.2773 -0.22452 2019 10 29 58785 0.1911 0.2763 -0.22576 2019 10 30 58786 0.1896 0.2753 -0.22680 2019 10 31 58787 0.1880 0.2744 -0.22761 2019 11 1 58788 0.1865 0.2735 -0.22819 2019 11 2 58789 0.1849 0.2727 -0.22862 2019 11 3 58790 0.1833 0.2718 -0.22900 2019 11 4 58791 0.1817 0.2710 -0.22942 2019 11 5 58792 0.1801 0.2702 -0.22992 2019 11 6 58793 0.1785 0.2694 -0.23050 2019 11 7 58794 0.1768 0.2687 -0.23116 2019 11 8 58795 0.1752 0.2680 -0.23193 2019 11 9 58796 0.1735 0.2673 -0.23273 2019 11 10 58797 0.1718 0.2666 -0.23360 2019 11 11 58798 0.1701 0.2660 -0.23451 2019 11 12 58799 0.1684 0.2653 -0.23536 2019 11 13 58800 0.1667 0.2647 -0.23608 2019 11 14 58801 0.1650 0.2642 -0.23670 2019 11 15 58802 0.1632 0.2636 -0.23721 2019 11 16 58803 0.1615 0.2631 -0.23766 2019 11 17 58804 0.1597 0.2627 -0.23806 2019 11 18 58805 0.1580 0.2622 -0.23845 2019 11 19 58806 0.1562 0.2618 -0.23894 2019 11 20 58807 0.1544 0.2614 -0.23958 2019 11 21 58808 0.1526 0.2610 -0.24046 2019 11 22 58809 0.1508 0.2607 -0.24160 2019 11 23 58810 0.1490 0.2604 -0.24293 2019 11 24 58811 0.1472 0.2601 -0.24431 2019 11 25 58812 0.1454 0.2598 -0.24562 2019 11 26 58813 0.1436 0.2596 -0.24675 2019 11 27 58814 0.1417 0.2594 -0.24763 2019 11 28 58815 0.1399 0.2592 -0.24826 2019 11 29 58816 0.1381 0.2591 -0.24869 2019 11 30 58817 0.1363 0.2590 -0.24904 2019 12 1 58818 0.1344 0.2589 -0.24934 2019 12 2 58819 0.1326 0.2588 -0.24957 2019 12 3 58820 0.1308 0.2588 -0.24990 2019 12 4 58821 0.1289 0.2588 -0.25034 2019 12 5 58822 0.1271 0.2588 -0.25087 2019 12 6 58823 0.1252 0.2589 -0.25154 2019 12 7 58824 0.1234 0.2590 -0.25225 2019 12 8 58825 0.1216 0.2591 -0.25291 2019 12 9 58826 0.1198 0.2593 -0.25358 2019 12 10 58827 0.1179 0.2594 -0.25423 2019 12 11 58828 0.1161 0.2597 -0.25477 2019 12 12 58829 0.1143 0.2599 -0.25519 2019 12 13 58830 0.1125 0.2602 -0.25551 2019 12 14 58831 0.1107 0.2605 -0.25580 2019 12 15 58832 0.1089 0.2608 -0.25611 2019 12 16 58833 0.1071 0.2611 -0.25654 2019 12 17 58834 0.1053 0.2615 -0.25717 2019 12 18 58835 0.1035 0.2619 -0.25804 2019 12 19 58836 0.1018 0.2624 -0.25912 2019 12 20 58837 0.1000 0.2628 -0.26037 2019 12 21 58838 0.0983 0.2633 -0.26169 2019 12 22 58839 0.0965 0.2638 -0.26301 2019 12 23 58840 0.0948 0.2644 -0.26421 2019 12 24 58841 0.0931 0.2650 -0.26524 2019 12 25 58842 0.0914 0.2656 -0.26607 2019 12 26 58843 0.0897 0.2662 -0.26672 2019 12 27 58844 0.0880 0.2669 -0.26729 2019 12 28 58845 0.0863 0.2675 -0.26793 2019 12 29 58846 0.0846 0.2683 -0.26864 2019 12 30 58847 0.0830 0.2690 -0.26945 2019 12 31 58848 0.0814 0.2698 -0.27041 2020 1 1 58849 0.0798 0.2706 -0.27150 2020 1 2 58850 0.0782 0.2714 -0.27266 2020 1 3 58851 0.0766 0.2722 -0.27384 2020 1 4 58852 0.0750 0.2731 -0.27496 2020 1 5 58853 0.0735 0.2740 -0.27602 2020 1 6 58854 0.0719 0.2749 -0.27701 2020 1 7 58855 0.0704 0.2759 -0.27782 2020 1 8 58856 0.0689 0.2768 -0.27846 2020 1 9 58857 0.0675 0.2778 -0.27893 2020 1 10 58858 0.0660 0.2789 -0.27930 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) 58467 -106.89 1.10 -7.73 0.06 58468 -106.79 1.10 -7.75 0.06 58469 -106.84 1.10 -7.69 0.06 58470 -107.03 0.32 -7.52 0.16 58471 -107.17 1.03 -7.25 0.04 58472 -107.19 1.03 -6.99 0.04 58473 -107.22 1.03 -6.95 0.04 58474 -107.32 1.03 -7.17 0.04 58475 -107.30 1.03 -7.45 0.04 58476 -106.98 1.03 -7.50 0.04 58477 -106.46 1.13 -7.28 0.13 58478 -106.03 1.13 -7.01 0.13 58479 -105.84 1.13 -6.93 0.13 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58467 0.414 0.439 0.034 0.059 58468 0.423 0.439 0.023 0.059 58469 0.428 0.439 0.011 0.059 58470 0.431 0.128 -0.001 0.160 58471 0.430 0.409 -0.013 0.043 58472 0.428 0.409 -0.026 0.043 58473 0.424 0.409 -0.038 0.043 58474 0.421 0.409 -0.051 0.043 58475 0.418 0.409 -0.063 0.043 58476 0.416 0.409 -0.075 0.043 58477 0.417 0.449 -0.087 0.125 58478 0.420 0.449 -0.099 0.125 58479 0.428 0.449 -0.111 0.125 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).