********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 6 September 2018 Vol. XXXI No. 036 ______________________________________________________________________ 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 = +0.0 seconds beginning 21 Sep 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 8 31 58361 0.21180 .00009 0.36930 .00009 0.063699 0.000026 18 9 1 58362 0.21174 .00009 0.36784 .00009 0.063280 0.000021 18 9 2 58363 0.21166 .00009 0.36615 .00009 0.062907 0.000033 18 9 3 58364 0.21170 .00009 0.36453 .00009 0.062680 0.000022 18 9 4 58365 0.21167 .00009 0.36314 .00009 0.062576 0.000025 18 9 5 58366 0.21173 .00009 0.36191 .00009 0.062515 0.000024 18 9 6 58367 0.21199 .00009 0.36089 .00009 0.062396 0.000023 IERS Final Values MJD x y UT1-UTC " " s 18 7 2 58301 0.1649 0.4287 0.07126 18 7 3 58302 0.1669 0.4272 0.07165 18 7 4 58303 0.1695 0.4259 0.07196 18 7 5 58304 0.1724 0.4254 0.07217 18 7 6 58305 0.1745 0.4254 0.07229 18 7 7 58306 0.1763 0.4252 0.07239 18 7 8 58307 0.1778 0.4251 0.07229 18 7 9 58308 0.1788 0.4248 0.07213 18 7 10 58309 0.1792 0.4239 0.07197 18 7 11 58310 0.1802 0.4227 0.07182 18 7 12 58311 0.1813 0.4217 0.07185 18 7 13 58312 0.1824 0.4204 0.07178 18 7 14 58313 0.1841 0.4194 0.07182 18 7 15 58314 0.1856 0.4187 0.07171 18 7 16 58315 0.1864 0.4185 0.07142 18 7 17 58316 0.1872 0.4181 0.07097 18 7 18 58317 0.1882 0.4175 0.07039 18 7 19 58318 0.1892 0.4168 0.06983 18 7 20 58319 0.1904 0.4158 0.06939 18 7 21 58320 0.1916 0.4147 0.06911 18 7 22 58321 0.1926 0.4136 0.06901 18 7 23 58322 0.1937 0.4127 0.06905 18 7 24 58323 0.1947 0.4123 0.06920 18 7 25 58324 0.1954 0.4120 0.06935 18 7 26 58325 0.1958 0.4114 0.06957 18 7 27 58326 0.1963 0.4105 0.06970 18 7 28 58327 0.1969 0.4098 0.06975 18 7 29 58328 0.1975 0.4088 0.06994 18 7 30 58329 0.1983 0.4077 0.06999 18 7 31 58330 0.1984 0.4066 0.06990 18 8 1 58331 0.1986 0.4052 0.06974 _______________________________________________________________________ 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 = 0.1156 + 0.1029 cos A - 0.0276 sin A - 0.0048 cos C + 0.0217 sin C y = 0.3554 - 0.0209 cos A - 0.0992 sin A + 0.0217 cos C + 0.0048 sin C UT1-UTC = 0.0239 - 0.00067 (MJD - 58375) - (UT2-UT1) where A = 2*pi*(MJD-58367)/365.25 and C = 2*pi*(MJD-58367)/435. TAI-UTC(MJD 58368) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58367)**0.80 S t = 0.00025 (MJD-58367)**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 9 7 58368 0.2121 0.3599 0.06218 2018 9 8 58369 0.2122 0.3589 0.06179 2018 9 9 58370 0.2121 0.3578 0.06117 2018 9 10 58371 0.2119 0.3567 0.06034 2018 9 11 58372 0.2117 0.3554 0.05939 2018 9 12 58373 0.2116 0.3542 0.05845 2018 9 13 58374 0.2114 0.3529 0.05761 2018 9 14 58375 0.2112 0.3516 0.05692 2018 9 15 58376 0.2110 0.3504 0.05639 2018 9 16 58377 0.2108 0.3491 0.05601 2018 9 17 58378 0.2105 0.3478 0.05575 2018 9 18 58379 0.2102 0.3466 0.05559 2018 9 19 58380 0.2098 0.3453 0.05549 2018 9 20 58381 0.2094 0.3440 0.05537 2018 9 21 58382 0.2089 0.3427 0.05516 2018 9 22 58383 0.2084 0.3414 0.05483 2018 9 23 58384 0.2079 0.3401 0.05435 2018 9 24 58385 0.2073 0.3388 0.05370 2018 9 25 58386 0.2068 0.3376 0.05291 2018 9 26 58387 0.2062 0.3363 0.05199 2018 9 27 58388 0.2057 0.3350 0.05101 2018 9 28 58389 0.2051 0.3338 0.05002 2018 9 29 58390 0.2044 0.3326 0.04908 2018 9 30 58391 0.2038 0.3314 0.04822 2018 10 1 58392 0.2031 0.3302 0.04742 2018 10 2 58393 0.2024 0.3290 0.04668 2018 10 3 58394 0.2016 0.3278 0.04594 2018 10 4 58395 0.2008 0.3266 0.04513 2018 10 5 58396 0.2000 0.3254 0.04418 2018 10 6 58397 0.1992 0.3242 0.04303 2018 10 7 58398 0.1984 0.3231 0.04170 2018 10 8 58399 0.1975 0.3220 0.04022 2018 10 9 58400 0.1966 0.3208 0.03866 2018 10 10 58401 0.1957 0.3197 0.03712 2018 10 11 58402 0.1948 0.3186 0.03570 2018 10 12 58403 0.1938 0.3175 0.03443 2018 10 13 58404 0.1928 0.3165 0.03333 2018 10 14 58405 0.1918 0.3154 0.03237 2018 10 15 58406 0.1907 0.3144 0.03153 2018 10 16 58407 0.1897 0.3133 0.03074 2018 10 17 58408 0.1886 0.3123 0.02995 2018 10 18 58409 0.1875 0.3113 0.02913 2018 10 19 58410 0.1864 0.3103 0.02822 2018 10 20 58411 0.1852 0.3094 0.02721 2018 10 21 58412 0.1841 0.3084 0.02609 2018 10 22 58413 0.1829 0.3075 0.02486 2018 10 23 58414 0.1817 0.3066 0.02353 2018 10 24 58415 0.1805 0.3057 0.02215 2018 10 25 58416 0.1793 0.3048 0.02078 2018 10 26 58417 0.1780 0.3040 0.01947 2018 10 27 58418 0.1767 0.3031 0.01828 2018 10 28 58419 0.1754 0.3023 0.01720 2018 10 29 58420 0.1741 0.3015 0.01624 2018 10 30 58421 0.1728 0.3007 0.01532 2018 10 31 58422 0.1715 0.3000 0.01438 2018 11 1 58423 0.1701 0.2992 0.01334 2018 11 2 58424 0.1688 0.2985 0.01215 2018 11 3 58425 0.1674 0.2978 0.01079 2018 11 4 58426 0.1660 0.2971 0.00930 2018 11 5 58427 0.1646 0.2965 0.00772 2018 11 6 58428 0.1631 0.2958 0.00615 2018 11 7 58429 0.1617 0.2952 0.00466 2018 11 8 58430 0.1602 0.2946 0.00332 2018 11 9 58431 0.1588 0.2941 0.00215 2018 11 10 58432 0.1573 0.2935 0.00115 2018 11 11 58433 0.1558 0.2930 0.00028 2018 11 12 58434 0.1543 0.2925 -0.00048 2018 11 13 58435 0.1528 0.2920 -0.00120 2018 11 14 58436 0.1513 0.2916 -0.00193 2018 11 15 58437 0.1498 0.2911 -0.00272 2018 11 16 58438 0.1482 0.2907 -0.00359 2018 11 17 58439 0.1467 0.2903 -0.00459 2018 11 18 58440 0.1451 0.2900 -0.00570 2018 11 19 58441 0.1436 0.2896 -0.00693 2018 11 20 58442 0.1420 0.2893 -0.00824 2018 11 21 58443 0.1404 0.2890 -0.00958 2018 11 22 58444 0.1389 0.2888 -0.01090 2018 11 23 58445 0.1373 0.2885 -0.01212 2018 11 24 58446 0.1357 0.2883 -0.01322 2018 11 25 58447 0.1341 0.2881 -0.01419 2018 11 26 58448 0.1325 0.2880 -0.01507 2018 11 27 58449 0.1309 0.2878 -0.01593 2018 11 28 58450 0.1293 0.2877 -0.01685 2018 11 29 58451 0.1277 0.2876 -0.01787 2018 11 30 58452 0.1261 0.2875 -0.01902 2018 12 1 58453 0.1245 0.2875 -0.02028 2018 12 2 58454 0.1228 0.2875 -0.02160 2018 12 3 58455 0.1212 0.2875 -0.02291 2018 12 4 58456 0.1196 0.2875 -0.02413 2018 12 5 58457 0.1180 0.2876 -0.02523 2018 12 6 58458 0.1164 0.2876 -0.02615 2018 12 7 58459 0.1148 0.2877 -0.02689 2018 12 8 58460 0.1132 0.2879 -0.02749 2018 12 9 58461 0.1116 0.2880 -0.02796 2018 12 10 58462 0.1100 0.2882 -0.02838 2018 12 11 58463 0.1084 0.2884 -0.02877 2018 12 12 58464 0.1068 0.2886 -0.02921 2018 12 13 58465 0.1052 0.2889 -0.02972 2018 12 14 58466 0.1036 0.2891 -0.03033 2018 12 15 58467 0.1020 0.2894 -0.03105 2018 12 16 58468 0.1004 0.2898 -0.03188 2018 12 17 58469 0.0989 0.2901 -0.03280 2018 12 18 58470 0.0973 0.2905 -0.03377 2018 12 19 58471 0.0957 0.2909 -0.03474 2018 12 20 58472 0.0942 0.2913 -0.03566 2018 12 21 58473 0.0926 0.2917 -0.03647 2018 12 22 58474 0.0911 0.2922 -0.03716 2018 12 23 58475 0.0896 0.2927 -0.03775 2018 12 24 58476 0.0881 0.2932 -0.03836 2018 12 25 58477 0.0866 0.2937 -0.03901 2018 12 26 58478 0.0851 0.2943 -0.03977 2018 12 27 58479 0.0836 0.2949 -0.04068 2018 12 28 58480 0.0821 0.2955 -0.04173 2018 12 29 58481 0.0807 0.2961 -0.04284 2018 12 30 58482 0.0792 0.2968 -0.04396 2018 12 31 58483 0.0778 0.2974 -0.04501 2019 1 1 58484 0.0764 0.2981 -0.04593 2019 1 2 58485 0.0750 0.2988 -0.04669 2019 1 3 58486 0.0736 0.2996 -0.04729 2019 1 4 58487 0.0722 0.3003 -0.04775 2019 1 5 58488 0.0708 0.3011 -0.04810 2019 1 6 58489 0.0695 0.3019 -0.04839 2019 1 7 58490 0.0681 0.3027 -0.04867 2019 1 8 58491 0.0668 0.3036 -0.04898 2019 1 9 58492 0.0655 0.3044 -0.04936 2019 1 10 58493 0.0642 0.3053 -0.04985 2019 1 11 58494 0.0630 0.3062 -0.05046 2019 1 12 58495 0.0617 0.3071 -0.05119 2019 1 13 58496 0.0605 0.3081 -0.05201 2019 1 14 58497 0.0593 0.3090 -0.05290 2019 1 15 58498 0.0581 0.3100 -0.05382 2019 1 16 58499 0.0569 0.3110 -0.05473 2019 1 17 58500 0.0558 0.3120 -0.05557 2019 1 18 58501 0.0547 0.3131 -0.05632 2019 1 19 58502 0.0536 0.3141 -0.05698 2019 1 20 58503 0.0525 0.3152 -0.05760 2019 1 21 58504 0.0514 0.3163 -0.05826 2019 1 22 58505 0.0503 0.3174 -0.05903 2019 1 23 58506 0.0493 0.3185 -0.05997 2019 1 24 58507 0.0483 0.3196 -0.06110 2019 1 25 58508 0.0473 0.3208 -0.06234 2019 1 26 58509 0.0464 0.3219 -0.06361 2019 1 27 58510 0.0455 0.3231 -0.06483 2019 1 28 58511 0.0445 0.3243 -0.06591 2019 1 29 58512 0.0437 0.3255 -0.06683 2019 1 30 58513 0.0428 0.3267 -0.06757 2019 1 31 58514 0.0420 0.3280 -0.06816 2019 2 1 58515 0.0411 0.3292 -0.06864 2019 2 2 58516 0.0404 0.3305 -0.06904 2019 2 3 58517 0.0396 0.3317 -0.06943 2019 2 4 58518 0.0388 0.3330 -0.06984 2019 2 5 58519 0.0381 0.3343 -0.07033 2019 2 6 58520 0.0374 0.3356 -0.07091 2019 2 7 58521 0.0368 0.3369 -0.07162 2019 2 8 58522 0.0362 0.3383 -0.07245 2019 2 9 58523 0.0355 0.3396 -0.07337 2019 2 10 58524 0.0350 0.3410 -0.07436 2019 2 11 58525 0.0344 0.3423 -0.07538 2019 2 12 58526 0.0339 0.3437 -0.07639 2019 2 13 58527 0.0334 0.3451 -0.07735 2019 2 14 58528 0.0329 0.3464 -0.07824 2019 2 15 58529 0.0325 0.3478 -0.07904 2019 2 16 58530 0.0320 0.3492 -0.07979 2019 2 17 58531 0.0316 0.3506 -0.08055 2019 2 18 58532 0.0313 0.3520 -0.08141 2019 2 19 58533 0.0309 0.3534 -0.08245 2019 2 20 58534 0.0306 0.3549 -0.08371 2019 2 21 58535 0.0304 0.3563 -0.08515 2019 2 22 58536 0.0301 0.3577 -0.08669 2019 2 23 58537 0.0299 0.3592 -0.08823 2019 2 24 58538 0.0297 0.3606 -0.08965 2019 2 25 58539 0.0295 0.3620 -0.09091 2019 2 26 58540 0.0294 0.3635 -0.09197 2019 2 27 58541 0.0293 0.3649 -0.09285 2019 2 28 58542 0.0292 0.3664 -0.09359 2019 3 1 58543 0.0292 0.3678 -0.09426 2019 3 2 58544 0.0291 0.3693 -0.09489 2019 3 3 58545 0.0292 0.3707 -0.09554 2019 3 4 58546 0.0292 0.3722 -0.09626 2019 3 5 58547 0.0293 0.3736 -0.09708 2019 3 6 58548 0.0293 0.3751 -0.09803 2019 3 7 58549 0.0295 0.3765 -0.09910 2019 3 8 58550 0.0296 0.3780 -0.10028 2019 3 9 58551 0.0298 0.3794 -0.10154 2019 3 10 58552 0.0300 0.3809 -0.10283 2019 3 11 58553 0.0303 0.3823 -0.10409 2019 3 12 58554 0.0305 0.3837 -0.10528 2019 3 13 58555 0.0308 0.3852 -0.10636 2019 3 14 58556 0.0311 0.3866 -0.10732 2019 3 15 58557 0.0315 0.3880 -0.10817 2019 3 16 58558 0.0319 0.3894 -0.10895 2019 3 17 58559 0.0323 0.3908 -0.10974 2019 3 18 58560 0.0327 0.3923 -0.11063 2019 3 19 58561 0.0332 0.3937 -0.11170 2019 3 20 58562 0.0337 0.3951 -0.11296 2019 3 21 58563 0.0342 0.3964 -0.11437 2019 3 22 58564 0.0348 0.3978 -0.11585 2019 3 23 58565 0.0353 0.3992 -0.11728 2019 3 24 58566 0.0359 0.4006 -0.11859 2019 3 25 58567 0.0366 0.4019 -0.11971 2019 3 26 58568 0.0372 0.4033 -0.12065 2019 3 27 58569 0.0379 0.4046 -0.12143 2019 3 28 58570 0.0386 0.4059 -0.12210 2019 3 29 58571 0.0394 0.4072 -0.12270 2019 3 30 58572 0.0401 0.4085 -0.12330 2019 3 31 58573 0.0409 0.4098 -0.12393 2019 4 1 58574 0.0417 0.4111 -0.12464 2019 4 2 58575 0.0426 0.4124 -0.12546 2019 4 3 58576 0.0434 0.4136 -0.12640 2019 4 4 58577 0.0443 0.4149 -0.12746 2019 4 5 58578 0.0452 0.4161 -0.12863 2019 4 6 58579 0.0462 0.4173 -0.12985 2019 4 7 58580 0.0471 0.4185 -0.13108 2019 4 8 58581 0.0481 0.4197 -0.13227 2019 4 9 58582 0.0491 0.4209 -0.13339 2019 4 10 58583 0.0502 0.4220 -0.13442 2019 4 11 58584 0.0512 0.4232 -0.13539 2019 4 12 58585 0.0523 0.4243 -0.13636 2019 4 13 58586 0.0534 0.4254 -0.13739 2019 4 14 58587 0.0545 0.4265 -0.13858 2019 4 15 58588 0.0557 0.4276 -0.13998 2019 4 16 58589 0.0569 0.4286 -0.14161 2019 4 17 58590 0.0580 0.4297 -0.14344 2019 4 18 58591 0.0592 0.4307 -0.14536 2019 4 19 58592 0.0605 0.4317 -0.14732 2019 4 20 58593 0.0617 0.4327 -0.14926 2019 4 21 58594 0.0630 0.4337 -0.15105 2019 4 22 58595 0.0643 0.4346 -0.15264 2019 4 23 58596 0.0656 0.4355 -0.15406 2019 4 24 58597 0.0669 0.4364 -0.15534 2019 4 25 58598 0.0683 0.4373 -0.15651 2019 4 26 58599 0.0696 0.4382 -0.15757 2019 4 27 58600 0.0710 0.4391 -0.15856 2019 4 28 58601 0.0724 0.4399 -0.15956 2019 4 29 58602 0.0738 0.4407 -0.16063 2019 4 30 58603 0.0752 0.4415 -0.16171 2019 5 1 58604 0.0767 0.4422 -0.16283 2019 5 2 58605 0.0782 0.4430 -0.16397 2019 5 3 58606 0.0796 0.4437 -0.16512 2019 5 4 58607 0.0811 0.4444 -0.16625 2019 5 5 58608 0.0826 0.4451 -0.16723 2019 5 6 58609 0.0841 0.4457 -0.16809 2019 5 7 58610 0.0857 0.4464 -0.16875 2019 5 8 58611 0.0872 0.4470 -0.16927 2019 5 9 58612 0.0888 0.4475 -0.16967 2019 5 10 58613 0.0903 0.4481 -0.16999 2019 5 11 58614 0.0919 0.4486 -0.17034 2019 5 12 58615 0.0935 0.4491 -0.17087 2019 5 13 58616 0.0951 0.4496 -0.17157 2019 5 14 58617 0.0967 0.4501 -0.17236 2019 5 15 58618 0.0983 0.4505 -0.17330 2019 5 16 58619 0.0999 0.4509 -0.17423 2019 5 17 58620 0.1016 0.4513 -0.17512 2019 5 18 58621 0.1032 0.4517 -0.17590 2019 5 19 58622 0.1048 0.4520 -0.17639 2019 5 20 58623 0.1065 0.4524 -0.17667 2019 5 21 58624 0.1082 0.4527 -0.17679 2019 5 22 58625 0.1098 0.4529 -0.17686 2019 5 23 58626 0.1115 0.4532 -0.17690 2019 5 24 58627 0.1132 0.4534 -0.17701 2019 5 25 58628 0.1149 0.4536 -0.17721 2019 5 26 58629 0.1165 0.4537 -0.17753 2019 5 27 58630 0.1182 0.4539 -0.17791 2019 5 28 58631 0.1199 0.4540 -0.17843 2019 5 29 58632 0.1216 0.4541 -0.17906 2019 5 30 58633 0.1233 0.4541 -0.17975 2019 5 31 58634 0.1250 0.4542 -0.18041 2019 6 1 58635 0.1267 0.4542 -0.18106 2019 6 2 58636 0.1284 0.4541 -0.18162 2019 6 3 58637 0.1301 0.4541 -0.18204 2019 6 4 58638 0.1318 0.4540 -0.18232 2019 6 5 58639 0.1335 0.4539 -0.18251 2019 6 6 58640 0.1352 0.4538 -0.18267 2019 6 7 58641 0.1368 0.4537 -0.18283 2019 6 8 58642 0.1385 0.4535 -0.18314 2019 6 9 58643 0.1402 0.4533 -0.18367 2019 6 10 58644 0.1419 0.4531 -0.18432 2019 6 11 58645 0.1436 0.4528 -0.18507 2019 6 12 58646 0.1452 0.4526 -0.18589 2019 6 13 58647 0.1469 0.4523 -0.18666 2019 6 14 58648 0.1485 0.4519 -0.18732 2019 6 15 58649 0.1502 0.4516 -0.18787 2019 6 16 58650 0.1518 0.4512 -0.18825 2019 6 17 58651 0.1535 0.4508 -0.18849 2019 6 18 58652 0.1551 0.4504 -0.18862 2019 6 19 58653 0.1567 0.4499 -0.18867 2019 6 20 58654 0.1583 0.4495 -0.18870 2019 6 21 58655 0.1599 0.4490 -0.18873 2019 6 22 58656 0.1615 0.4484 -0.18882 2019 6 23 58657 0.1631 0.4479 -0.18902 2019 6 24 58658 0.1647 0.4473 -0.18928 2019 6 25 58659 0.1662 0.4467 -0.18958 2019 6 26 58660 0.1678 0.4461 -0.18990 2019 6 27 58661 0.1693 0.4455 -0.19023 2019 6 28 58662 0.1708 0.4448 -0.19057 2019 6 29 58663 0.1723 0.4441 -0.19080 2019 6 30 58664 0.1738 0.4434 -0.19092 2019 7 1 58665 0.1753 0.4426 -0.19091 2019 7 2 58666 0.1768 0.4419 -0.19072 2019 7 3 58667 0.1782 0.4411 -0.19041 2019 7 4 58668 0.1796 0.4403 -0.19009 2019 7 5 58669 0.1811 0.4395 -0.18992 2019 7 6 58670 0.1825 0.4386 -0.18996 2019 7 7 58671 0.1838 0.4378 -0.19016 2019 7 8 58672 0.1852 0.4369 -0.19047 2019 7 9 58673 0.1865 0.4360 -0.19084 2019 7 10 58674 0.1879 0.4350 -0.19125 2019 7 11 58675 0.1892 0.4341 -0.19160 2019 7 12 58676 0.1905 0.4331 -0.19178 2019 7 13 58677 0.1917 0.4321 -0.19177 2019 7 14 58678 0.1930 0.4311 -0.19162 2019 7 15 58679 0.1942 0.4301 -0.19137 2019 7 16 58680 0.1954 0.4290 -0.19104 2019 7 17 58681 0.1966 0.4280 -0.19064 2019 7 18 58682 0.1978 0.4269 -0.19022 2019 7 19 58683 0.1989 0.4258 -0.18982 2019 7 20 58684 0.2001 0.4246 -0.18949 2019 7 21 58685 0.2012 0.4235 -0.18927 2019 7 22 58686 0.2022 0.4223 -0.18908 2019 7 23 58687 0.2033 0.4212 -0.18899 2019 7 24 58688 0.2043 0.4200 -0.18896 2019 7 25 58689 0.2053 0.4188 -0.18896 2019 7 26 58690 0.2063 0.4176 -0.18893 2019 7 27 58691 0.2073 0.4163 -0.18881 2019 7 28 58692 0.2082 0.4151 -0.18859 2019 7 29 58693 0.2091 0.4138 -0.18830 2019 7 30 58694 0.2100 0.4125 -0.18793 2019 7 31 58695 0.2109 0.4112 -0.18764 2019 8 1 58696 0.2117 0.4099 -0.18746 2019 8 2 58697 0.2125 0.4086 -0.18747 2019 8 3 58698 0.2133 0.4073 -0.18774 2019 8 4 58699 0.2140 0.4059 -0.18821 2019 8 5 58700 0.2147 0.4046 -0.18879 2019 8 6 58701 0.2154 0.4032 -0.18942 2019 8 7 58702 0.2161 0.4018 -0.18999 2019 8 8 58703 0.2168 0.4004 -0.19033 2019 8 9 58704 0.2174 0.3990 -0.19046 2019 8 10 58705 0.2180 0.3976 -0.19042 2019 8 11 58706 0.2185 0.3962 -0.19020 2019 8 12 58707 0.2190 0.3948 -0.18986 2019 8 13 58708 0.2195 0.3934 -0.18946 2019 8 14 58709 0.2200 0.3919 -0.18901 2019 8 15 58710 0.2205 0.3905 -0.18859 2019 8 16 58711 0.2209 0.3890 -0.18828 2019 8 17 58712 0.2212 0.3876 -0.18804 2019 8 18 58713 0.2216 0.3861 -0.18790 2019 8 19 58714 0.2219 0.3846 -0.18783 2019 8 20 58715 0.2222 0.3831 -0.18784 2019 8 21 58716 0.2225 0.3817 -0.18788 2019 8 22 58717 0.2227 0.3802 -0.18791 2019 8 23 58718 0.2229 0.3787 -0.18785 2019 8 24 58719 0.2231 0.3772 -0.18775 2019 8 25 58720 0.2232 0.3757 -0.18756 2019 8 26 58721 0.2234 0.3742 -0.18732 2019 8 27 58722 0.2234 0.3727 -0.18711 2019 8 28 58723 0.2235 0.3712 -0.18703 2019 8 29 58724 0.2235 0.3697 -0.18726 2019 8 30 58725 0.2235 0.3682 -0.18778 2019 8 31 58726 0.2235 0.3667 -0.18859 2019 9 1 58727 0.2234 0.3652 -0.18951 2019 9 2 58728 0.2233 0.3637 -0.19048 2019 9 3 58729 0.2232 0.3622 -0.19136 2019 9 4 58730 0.2230 0.3606 -0.19213 2019 9 5 58731 0.2228 0.3592 -0.19272 2019 9 6 58732 0.2226 0.3577 -0.19312 These predictions are based on all announced leap seconds. IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 58301 -108.4 -11.8 58302 -108.5 -11.8 58303 -108.4 -11.8 58304 -108.4 -11.6 58305 -108.7 -11.6 58306 -109.5 -11.6 58307 -110.3 -11.6 58308 -110.6 -11.6 58309 -110.8 -11.5 58310 -110.9 -11.5 58311 -111.1 -11.6 58312 -111.1 -11.7 58313 -110.8 -11.6 58314 -110.5 -11.5 58315 -110.5 -11.5 58316 -110.8 -11.6 58317 -111.4 -11.5 58318 -111.8 -11.5 58319 -111.9 -11.5 58320 -111.6 -11.6 58321 -111.6 -11.8 58322 -111.8 -11.8 58323 -112.2 -11.8 58324 -112.5 -11.9 58325 -112.4 -12.0 58326 -112.2 -12.0 58327 -112.1 -11.8 58328 -112.2 -11.6 58329 -112.3 -11.5 58330 -112.5 -11.5 58331 -112.6 -11.5 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 58301 -0.08 -0.03 58302 -0.06 -0.02 58303 -0.05 -0.02 58304 -0.04 -0.02 58305 -0.03 -0.02 58306 -0.04 -0.01 58307 -0.05 0.00 58308 -0.06 0.02 58309 -0.06 0.03 58310 -0.07 0.05 58311 -0.08 0.07 58312 -0.09 0.08 58313 -0.10 0.09 58314 -0.11 0.09 58315 -0.12 0.09 58316 -0.13 0.09 58317 -0.14 0.09 58318 -0.14 0.09 58319 -0.15 0.09 58320 -0.14 0.10 58321 -0.12 0.10 58322 -0.11 0.10 58323 -0.09 0.10 58324 -0.07 0.11 58325 -0.05 0.11 58326 -0.04 0.11 58327 -0.02 0.12 58328 -0.00 0.12 58329 0.02 0.12 58330 0.03 0.12 58331 0.01 0.07 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).