********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 14 June 2018 Vol. XXXI No. 024 ______________________________________________________________________ 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 15 Mar 2018 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. * * * * We are currently not able to receive email at * * ser7@maia.usno.navy.mil. Questions and enquiries can now be * * directed to the following email account: navobsy_eop.fct@navy.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 18 6 8 58277 0.12356 .00009 0.44716 .00009 0.073807 0.000029 18 6 9 58278 0.12462 .00009 0.44680 .00009 0.073008 0.000029 18 6 10 58279 0.12586 .00009 0.44625 .00009 0.072109 0.000037 18 6 11 58280 0.12735 .00009 0.44571 .00009 0.071220 0.000044 18 6 12 58281 0.12899 .00009 0.44540 .00009 0.070458 0.000041 18 6 13 58282 0.13060 .00009 0.44526 .00009 0.069916 0.000038 18 6 14 58283 0.13209 .00009 0.44515 .00009 0.069570 0.000037 _______________________________________________________________________ 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 = 0.1070 + 0.0338 cos A + 0.1315 sin A - 0.0045 cos C - 0.0247 sin C y = 0.3468 + 0.1252 cos A - 0.0309 sin A - 0.0247 cos C + 0.0045 sin C UT1-UTC = 0.0996 - 0.00075 (MJD - 58291) - (UT2-UT1) where A = 2*pi*(MJD-58283)/365.25 and C = 2*pi*(MJD-58283)/435. TAI-UTC(MJD 58284) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58283)**0.80 S t = 0.00025 (MJD-58283)**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) 2018 6 15 58284 0.1335 0.4450 0.06935 2018 6 16 58285 0.1348 0.4447 0.06919 2018 6 17 58286 0.1361 0.4443 0.06901 2018 6 18 58287 0.1375 0.4439 0.06877 2018 6 19 58288 0.1389 0.4435 0.06844 2018 6 20 58289 0.1404 0.4431 0.06809 2018 6 21 58290 0.1418 0.4426 0.06774 2018 6 22 58291 0.1433 0.4422 0.06746 2018 6 23 58292 0.1447 0.4418 0.06727 2018 6 24 58293 0.1461 0.4413 0.06719 2018 6 25 58294 0.1475 0.4408 0.06723 2018 6 26 58295 0.1489 0.4404 0.06738 2018 6 27 58296 0.1503 0.4399 0.06762 2018 6 28 58297 0.1516 0.4393 0.06789 2018 6 29 58298 0.1529 0.4387 0.06817 2018 6 30 58299 0.1543 0.4381 0.06845 2018 7 1 58300 0.1556 0.4375 0.06867 2018 7 2 58301 0.1570 0.4368 0.06880 2018 7 3 58302 0.1583 0.4362 0.06881 2018 7 4 58303 0.1597 0.4355 0.06871 2018 7 5 58304 0.1610 0.4348 0.06849 2018 7 6 58305 0.1623 0.4341 0.06819 2018 7 7 58306 0.1635 0.4334 0.06783 2018 7 8 58307 0.1648 0.4326 0.06747 2018 7 9 58308 0.1660 0.4318 0.06717 2018 7 10 58309 0.1673 0.4310 0.06699 2018 7 11 58310 0.1685 0.4302 0.06694 2018 7 12 58311 0.1697 0.4293 0.06700 2018 7 13 58312 0.1709 0.4285 0.06711 2018 7 14 58313 0.1721 0.4276 0.06719 2018 7 15 58314 0.1733 0.4267 0.06715 2018 7 16 58315 0.1744 0.4258 0.06698 2018 7 17 58316 0.1755 0.4248 0.06669 2018 7 18 58317 0.1766 0.4239 0.06635 2018 7 19 58318 0.1777 0.4229 0.06604 2018 7 20 58319 0.1788 0.4219 0.06581 2018 7 21 58320 0.1798 0.4209 0.06572 2018 7 22 58321 0.1809 0.4199 0.06578 2018 7 23 58322 0.1819 0.4189 0.06598 2018 7 24 58323 0.1829 0.4178 0.06633 2018 7 25 58324 0.1838 0.4167 0.06678 2018 7 26 58325 0.1848 0.4156 0.06729 2018 7 27 58326 0.1857 0.4145 0.06784 2018 7 28 58327 0.1866 0.4134 0.06836 2018 7 29 58328 0.1875 0.4123 0.06882 2018 7 30 58329 0.1884 0.4111 0.06918 2018 7 31 58330 0.1892 0.4100 0.06942 2018 8 1 58331 0.1900 0.4088 0.06955 2018 8 2 58332 0.1908 0.4076 0.06957 2018 8 3 58333 0.1916 0.4064 0.06954 2018 8 4 58334 0.1923 0.4052 0.06948 2018 8 5 58335 0.1931 0.4039 0.06944 2018 8 6 58336 0.1938 0.4027 0.06946 2018 8 7 58337 0.1944 0.4014 0.06957 2018 8 8 58338 0.1951 0.4002 0.06977 2018 8 9 58339 0.1957 0.3989 0.07000 2018 8 10 58340 0.1963 0.3976 0.07021 2018 8 11 58341 0.1969 0.3963 0.07030 2018 8 12 58342 0.1974 0.3950 0.07022 2018 8 13 58343 0.1979 0.3937 0.06997 2018 8 14 58344 0.1984 0.3923 0.06961 2018 8 15 58345 0.1989 0.3910 0.06922 2018 8 16 58346 0.1994 0.3897 0.06890 2018 8 17 58347 0.1998 0.3883 0.06870 2018 8 18 58348 0.2002 0.3869 0.06866 2018 8 19 58349 0.2005 0.3856 0.06877 2018 8 20 58350 0.2009 0.3842 0.06902 2018 8 21 58351 0.2012 0.3828 0.06936 2018 8 22 58352 0.2015 0.3814 0.06976 2018 8 23 58353 0.2017 0.3800 0.07017 2018 8 24 58354 0.2020 0.3786 0.07053 2018 8 25 58355 0.2022 0.3772 0.07080 2018 8 26 58356 0.2024 0.3758 0.07094 2018 8 27 58357 0.2025 0.3744 0.07093 2018 8 28 58358 0.2026 0.3730 0.07078 2018 8 29 58359 0.2027 0.3716 0.07049 2018 8 30 58360 0.2028 0.3702 0.07010 2018 8 31 58361 0.2028 0.3688 0.06966 2018 9 1 58362 0.2029 0.3673 0.06921 2018 9 2 58363 0.2028 0.3659 0.06881 2018 9 3 58364 0.2028 0.3645 0.06847 2018 9 4 58365 0.2027 0.3631 0.06821 2018 9 5 58366 0.2026 0.3617 0.06799 2018 9 6 58367 0.2025 0.3602 0.06776 2018 9 7 58368 0.2024 0.3588 0.06743 2018 9 8 58369 0.2022 0.3574 0.06693 2018 9 9 58370 0.2020 0.3560 0.06625 2018 9 10 58371 0.2017 0.3546 0.06541 2018 9 11 58372 0.2015 0.3531 0.06448 2018 9 12 58373 0.2012 0.3517 0.06355 2018 9 13 58374 0.2009 0.3503 0.06271 2018 9 14 58375 0.2005 0.3489 0.06202 2018 9 15 58376 0.2002 0.3475 0.06150 2018 9 16 58377 0.1998 0.3461 0.06112 2018 9 17 58378 0.1994 0.3448 0.06087 2018 9 18 58379 0.1989 0.3434 0.06068 2018 9 19 58380 0.1984 0.3420 0.06051 2018 9 20 58381 0.1979 0.3406 0.06032 2018 9 21 58382 0.1974 0.3393 0.06004 2018 9 22 58383 0.1969 0.3379 0.05966 2018 9 23 58384 0.1963 0.3366 0.05913 2018 9 24 58385 0.1957 0.3352 0.05846 2018 9 25 58386 0.1951 0.3339 0.05765 2018 9 26 58387 0.1944 0.3326 0.05673 2018 9 27 58388 0.1937 0.3313 0.05575 2018 9 28 58389 0.1930 0.3300 0.05478 2018 9 29 58390 0.1923 0.3287 0.05386 2018 9 30 58391 0.1915 0.3274 0.05302 2018 10 1 58392 0.1908 0.3261 0.05227 2018 10 2 58393 0.1900 0.3249 0.05159 2018 10 3 58394 0.1891 0.3236 0.05092 2018 10 4 58395 0.1883 0.3224 0.05018 2018 10 5 58396 0.1874 0.3212 0.04931 2018 10 6 58397 0.1865 0.3200 0.04827 2018 10 7 58398 0.1856 0.3188 0.04704 2018 10 8 58399 0.1847 0.3176 0.04568 2018 10 9 58400 0.1837 0.3164 0.04426 2018 10 10 58401 0.1827 0.3153 0.04289 2018 10 11 58402 0.1817 0.3141 0.04163 2018 10 12 58403 0.1807 0.3130 0.04055 2018 10 13 58404 0.1796 0.3119 0.03964 2018 10 14 58405 0.1785 0.3108 0.03888 2018 10 15 58406 0.1775 0.3097 0.03823 2018 10 16 58407 0.1763 0.3087 0.03764 2018 10 17 58408 0.1752 0.3076 0.03705 2018 10 18 58409 0.1741 0.3066 0.03642 2018 10 19 58410 0.1729 0.3056 0.03570 2018 10 20 58411 0.1717 0.3046 0.03486 2018 10 21 58412 0.1705 0.3037 0.03388 2018 10 22 58413 0.1693 0.3027 0.03277 2018 10 23 58414 0.1680 0.3018 0.03156 2018 10 24 58415 0.1668 0.3009 0.03028 2018 10 25 58416 0.1655 0.3000 0.02899 2018 10 26 58417 0.1642 0.2991 0.02775 2018 10 27 58418 0.1629 0.2982 0.02663 2018 10 28 58419 0.1616 0.2974 0.02563 2018 10 29 58420 0.1602 0.2966 0.02473 2018 10 30 58421 0.1589 0.2958 0.02388 2018 10 31 58422 0.1575 0.2950 0.02302 2018 11 1 58423 0.1561 0.2943 0.02207 2018 11 2 58424 0.1547 0.2935 0.02097 2018 11 3 58425 0.1533 0.2928 0.01972 2018 11 4 58426 0.1519 0.2921 0.01833 2018 11 5 58427 0.1504 0.2915 0.01688 2018 11 6 58428 0.1490 0.2908 0.01543 2018 11 7 58429 0.1475 0.2902 0.01406 2018 11 8 58430 0.1461 0.2896 0.01285 2018 11 9 58431 0.1446 0.2890 0.01181 2018 11 10 58432 0.1431 0.2885 0.01094 2018 11 11 58433 0.1416 0.2880 0.01021 2018 11 12 58434 0.1401 0.2875 0.00957 2018 11 13 58435 0.1386 0.2870 0.00897 2018 11 14 58436 0.1370 0.2865 0.00835 2018 11 15 58437 0.1355 0.2861 0.00767 2018 11 16 58438 0.1339 0.2857 0.00690 2018 11 17 58439 0.1324 0.2853 0.00600 2018 11 18 58440 0.1308 0.2849 0.00498 2018 11 19 58441 0.1293 0.2846 0.00385 2018 11 20 58442 0.1277 0.2843 0.00265 2018 11 21 58443 0.1261 0.2840 0.00141 2018 11 22 58444 0.1245 0.2837 0.00020 2018 11 23 58445 0.1229 0.2835 -0.00092 2018 11 24 58446 0.1214 0.2833 -0.00191 2018 11 25 58447 0.1198 0.2831 -0.00277 2018 11 26 58448 0.1182 0.2829 -0.00354 2018 11 27 58449 0.1166 0.2828 -0.00430 2018 11 28 58450 0.1150 0.2827 -0.00511 2018 11 29 58451 0.1134 0.2826 -0.00603 2018 11 30 58452 0.1118 0.2825 -0.00709 2018 12 1 58453 0.1102 0.2825 -0.00827 2018 12 2 58454 0.1086 0.2825 -0.00951 2018 12 3 58455 0.1070 0.2825 -0.01075 2018 12 4 58456 0.1054 0.2825 -0.01191 2018 12 5 58457 0.1038 0.2826 -0.01294 2018 12 6 58458 0.1022 0.2827 -0.01380 2018 12 7 58459 0.1006 0.2828 -0.01449 2018 12 8 58460 0.0990 0.2829 -0.01504 2018 12 9 58461 0.0974 0.2831 -0.01547 2018 12 10 58462 0.0958 0.2833 -0.01583 2018 12 11 58463 0.0942 0.2835 -0.01619 2018 12 12 58464 0.0926 0.2838 -0.01658 2018 12 13 58465 0.0911 0.2840 -0.01704 2018 12 14 58466 0.0895 0.2843 -0.01760 2018 12 15 58467 0.0879 0.2846 -0.01827 2018 12 16 58468 0.0864 0.2850 -0.01904 2018 12 17 58469 0.0849 0.2853 -0.01989 2018 12 18 58470 0.0833 0.2857 -0.02079 2018 12 19 58471 0.0818 0.2861 -0.02169 2018 12 20 58472 0.0803 0.2866 -0.02254 2018 12 21 58473 0.0788 0.2870 -0.02328 2018 12 22 58474 0.0773 0.2875 -0.02390 2018 12 23 58475 0.0758 0.2880 -0.02443 2018 12 24 58476 0.0743 0.2886 -0.02492 2018 12 25 58477 0.0728 0.2891 -0.02545 2018 12 26 58478 0.0714 0.2897 -0.02610 2018 12 27 58479 0.0699 0.2903 -0.02691 2018 12 28 58480 0.0685 0.2910 -0.02789 2018 12 29 58481 0.0671 0.2916 -0.02899 2018 12 30 58482 0.0656 0.2923 -0.03014 2018 12 31 58483 0.0643 0.2930 -0.03128 2019 1 1 58484 0.0629 0.2937 -0.03234 2019 1 2 58485 0.0615 0.2945 -0.03328 2019 1 3 58486 0.0602 0.2952 -0.03410 2019 1 4 58487 0.0588 0.2960 -0.03481 2019 1 5 58488 0.0575 0.2968 -0.03543 2019 1 6 58489 0.0562 0.2976 -0.03601 2019 1 7 58490 0.0549 0.2985 -0.03658 2019 1 8 58491 0.0536 0.2994 -0.03719 2019 1 9 58492 0.0524 0.3003 -0.03785 2019 1 10 58493 0.0511 0.3012 -0.03860 2019 1 11 58494 0.0499 0.3021 -0.03943 2019 1 12 58495 0.0487 0.3031 -0.04034 2019 1 13 58496 0.0476 0.3040 -0.04131 2019 1 14 58497 0.0464 0.3050 -0.04232 2019 1 15 58498 0.0452 0.3060 -0.04331 2019 1 16 58499 0.0441 0.3071 -0.04426 2019 1 17 58500 0.0430 0.3081 -0.04511 2019 1 18 58501 0.0419 0.3092 -0.04588 2019 1 19 58502 0.0409 0.3103 -0.04657 2019 1 20 58503 0.0398 0.3114 -0.04722 2019 1 21 58504 0.0388 0.3125 -0.04789 2019 1 22 58505 0.0378 0.3136 -0.04869 2019 1 23 58506 0.0369 0.3148 -0.04971 2019 1 24 58507 0.0359 0.3159 -0.05097 2019 1 25 58508 0.0350 0.3171 -0.05235 2019 1 26 58509 0.0341 0.3183 -0.05377 2019 1 27 58510 0.0332 0.3195 -0.05517 2019 1 28 58511 0.0323 0.3208 -0.05647 2019 1 29 58512 0.0315 0.3220 -0.05761 2019 1 30 58513 0.0307 0.3233 -0.05855 2019 1 31 58514 0.0299 0.3245 -0.05929 2019 2 1 58515 0.0291 0.3258 -0.05987 2019 2 2 58516 0.0284 0.3271 -0.06035 2019 2 3 58517 0.0277 0.3284 -0.06081 2019 2 4 58518 0.0270 0.3297 -0.06123 2019 2 5 58519 0.0264 0.3311 -0.06174 2019 2 6 58520 0.0257 0.3324 -0.06236 2019 2 7 58521 0.0251 0.3338 -0.06311 2019 2 8 58522 0.0245 0.3351 -0.06399 2019 2 9 58523 0.0240 0.3365 -0.06494 2019 2 10 58524 0.0234 0.3379 -0.06594 2019 2 11 58525 0.0229 0.3393 -0.06700 2019 2 12 58526 0.0225 0.3407 -0.06803 2019 2 13 58527 0.0220 0.3421 -0.06910 2019 2 14 58528 0.0216 0.3435 -0.07011 2019 2 15 58529 0.0212 0.3449 -0.07104 2019 2 16 58530 0.0208 0.3464 -0.07195 2019 2 17 58531 0.0205 0.3478 -0.07288 2019 2 18 58532 0.0202 0.3493 -0.07391 2019 2 19 58533 0.0199 0.3507 -0.07515 2019 2 20 58534 0.0197 0.3522 -0.07666 2019 2 21 58535 0.0194 0.3536 -0.07829 2019 2 22 58536 0.0192 0.3551 -0.08003 2019 2 23 58537 0.0191 0.3566 -0.08175 2019 2 24 58538 0.0189 0.3580 -0.08333 2019 2 25 58539 0.0188 0.3595 -0.08469 2019 2 26 58540 0.0187 0.3610 -0.08581 2019 2 27 58541 0.0187 0.3625 -0.08669 2019 2 28 58542 0.0186 0.3640 -0.08740 2019 3 1 58543 0.0186 0.3654 -0.08802 2019 3 2 58544 0.0187 0.3669 -0.08855 2019 3 3 58545 0.0187 0.3684 -0.08908 2019 3 4 58546 0.0188 0.3699 -0.08963 2019 3 5 58547 0.0189 0.3714 -0.09030 2019 3 6 58548 0.0190 0.3729 -0.09109 2019 3 7 58549 0.0192 0.3744 -0.09201 2019 3 8 58550 0.0194 0.3758 -0.09301 2019 3 9 58551 0.0196 0.3773 -0.09409 2019 3 10 58552 0.0199 0.3788 -0.09521 2019 3 11 58553 0.0202 0.3803 -0.09631 2019 3 12 58554 0.0205 0.3817 -0.09739 2019 3 13 58555 0.0208 0.3832 -0.09845 2019 3 14 58556 0.0212 0.3847 -0.09956 2019 3 15 58557 0.0216 0.3861 -0.10065 2019 3 16 58558 0.0220 0.3876 -0.10174 2019 3 17 58559 0.0225 0.3890 -0.10282 2019 3 18 58560 0.0229 0.3905 -0.10402 2019 3 19 58561 0.0234 0.3919 -0.10539 2019 3 20 58562 0.0240 0.3933 -0.10702 2019 3 21 58563 0.0245 0.3947 -0.10886 2019 3 22 58564 0.0251 0.3962 -0.11077 2019 3 23 58565 0.0257 0.3976 -0.11266 2019 3 24 58566 0.0264 0.3989 -0.11439 2019 3 25 58567 0.0270 0.4003 -0.11597 2019 3 26 58568 0.0277 0.4017 -0.11737 2019 3 27 58569 0.0284 0.4031 -0.11857 2019 3 28 58570 0.0292 0.4044 -0.11962 2019 3 29 58571 0.0300 0.4058 -0.12051 2019 3 30 58572 0.0308 0.4071 -0.12143 2019 3 31 58573 0.0316 0.4084 -0.12238 2019 4 1 58574 0.0324 0.4097 -0.12340 2019 4 2 58575 0.0333 0.4110 -0.12455 2019 4 3 58576 0.0342 0.4123 -0.12582 2019 4 4 58577 0.0351 0.4136 -0.12721 2019 4 5 58578 0.0360 0.4148 -0.12866 2019 4 6 58579 0.0370 0.4160 -0.13016 2019 4 7 58580 0.0380 0.4173 -0.13165 2019 4 8 58581 0.0390 0.4185 -0.13306 2019 4 9 58582 0.0400 0.4197 -0.13434 2019 4 10 58583 0.0411 0.4208 -0.13549 2019 4 11 58584 0.0422 0.4220 -0.13660 2019 4 12 58585 0.0433 0.4232 -0.13767 2019 4 13 58586 0.0444 0.4243 -0.13875 2019 4 14 58587 0.0455 0.4254 -0.13986 2019 4 15 58588 0.0467 0.4265 -0.14115 2019 4 16 58589 0.0479 0.4276 -0.14262 2019 4 17 58590 0.0491 0.4286 -0.14423 2019 4 18 58591 0.0503 0.4297 -0.14597 2019 4 19 58592 0.0516 0.4307 -0.14773 2019 4 20 58593 0.0528 0.4317 -0.14943 2019 4 21 58594 0.0541 0.4327 -0.15086 2019 4 22 58595 0.0554 0.4336 -0.15213 2019 4 23 58596 0.0567 0.4346 -0.15326 2019 4 24 58597 0.0580 0.4355 -0.15420 2019 4 25 58598 0.0594 0.4364 -0.15502 2019 4 26 58599 0.0608 0.4373 -0.15585 2019 4 27 58600 0.0621 0.4381 -0.15666 2019 4 28 58601 0.0635 0.4390 -0.15758 2019 4 29 58602 0.0650 0.4398 -0.15861 2019 4 30 58603 0.0664 0.4406 -0.15976 2019 5 1 58604 0.0678 0.4413 -0.16105 2019 5 2 58605 0.0693 0.4421 -0.16247 2019 5 3 58606 0.0708 0.4428 -0.16400 2019 5 4 58607 0.0723 0.4435 -0.16557 2019 5 5 58608 0.0738 0.4442 -0.16706 2019 5 6 58609 0.0753 0.4449 -0.16846 2019 5 7 58610 0.0768 0.4455 -0.16975 2019 5 8 58611 0.0783 0.4461 -0.17093 2019 5 9 58612 0.0799 0.4467 -0.17210 2019 5 10 58613 0.0814 0.4472 -0.17320 2019 5 11 58614 0.0830 0.4478 -0.17433 2019 5 12 58615 0.0846 0.4483 -0.17560 2019 5 13 58616 0.0861 0.4488 -0.17705 2019 5 14 58617 0.0877 0.4492 -0.17868 2019 5 15 58618 0.0893 0.4497 -0.18048 2019 5 16 58619 0.0910 0.4501 -0.18233 2019 5 17 58620 0.0926 0.4505 -0.18409 2019 5 18 58621 0.0942 0.4508 -0.18570 2019 5 19 58622 0.0958 0.4512 -0.18707 2019 5 20 58623 0.0975 0.4515 -0.18814 2019 5 21 58624 0.0991 0.4517 -0.18898 2019 5 22 58625 0.1007 0.4520 -0.18968 2019 5 23 58626 0.1024 0.4522 -0.19031 2019 5 24 58627 0.1040 0.4524 -0.19096 2019 5 25 58628 0.1057 0.4526 -0.19165 2019 5 26 58629 0.1074 0.4528 -0.19231 2019 5 27 58630 0.1090 0.4529 -0.19309 2019 5 28 58631 0.1107 0.4530 -0.19392 2019 5 29 58632 0.1123 0.4530 -0.19485 2019 5 30 58633 0.1140 0.4531 -0.19592 2019 5 31 58634 0.1157 0.4531 -0.19711 2019 6 1 58635 0.1173 0.4531 -0.19831 2019 6 2 58636 0.1190 0.4531 -0.19944 2019 6 3 58637 0.1207 0.4530 -0.20048 2019 6 4 58638 0.1223 0.4529 -0.20130 2019 6 5 58639 0.1240 0.4528 -0.20198 2019 6 6 58640 0.1256 0.4527 -0.20263 2019 6 7 58641 0.1273 0.4525 -0.20328 2019 6 8 58642 0.1289 0.4523 -0.20399 2019 6 9 58643 0.1306 0.4521 -0.20484 2019 6 10 58644 0.1322 0.4518 -0.20580 2019 6 11 58645 0.1339 0.4516 -0.20686 2019 6 12 58646 0.1355 0.4513 -0.20802 2019 6 13 58647 0.1371 0.4509 -0.20912 2019 6 14 58648 0.1387 0.4506 -0.21001 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) 58262 -103.20 0.38 -12.16 0.17 58263 -103.19 0.38 -12.20 0.17 58264 -103.43 0.38 -12.15 0.17 58265 -103.82 0.35 -12.02 0.20 58266 -104.16 0.36 -11.87 0.18 58267 -104.34 0.38 -11.81 0.13 58268 -104.43 0.38 -11.88 0.13 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58262 -0.157 0.153 -0.143 0.171 58263 -0.157 0.153 -0.144 0.171 58264 -0.156 0.153 -0.144 0.171 58265 -0.156 0.140 -0.143 0.195 58266 -0.155 0.143 -0.142 0.177 58267 -0.154 0.152 -0.140 0.134 58268 -0.153 0.152 -0.138 0.134 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).