********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 19 July 2018 Vol. XXXI No. 029 ______________________________________________________________________ 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 7 13 58312 0.18262 .00009 0.42043 .00009 0.071777 0.000008 18 7 14 58313 0.18410 .00009 0.41941 .00009 0.071788 0.000008 18 7 15 58314 0.18546 .00009 0.41877 .00009 0.071688 0.000009 18 7 16 58315 0.18645 .00009 0.41840 .00009 0.071414 0.000009 18 7 17 58316 0.18735 .00009 0.41800 .00009 0.070978 0.000011 18 7 18 58317 0.18836 .00009 0.41742 .00009 0.070438 0.000011 18 7 19 58318 0.18937 .00009 0.41670 .00009 0.069897 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 = 0.1155 + 0.0984 cos A + 0.0798 sin A - 0.0182 cos C - 0.0099 sin C y = 0.3522 + 0.0776 cos A - 0.0939 sin A - 0.0099 cos C + 0.0182 sin C UT1-UTC = 0.0669 - 0.00071 (MJD - 58326) - (UT2-UT1) where A = 2*pi*(MJD-58318)/365.25 and C = 2*pi*(MJD-58318)/435. TAI-UTC(MJD 58319) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58318)**0.80 S t = 0.00025 (MJD-58318)**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 7 20 58319 0.1903 0.4158 0.06947 2018 7 21 58320 0.1913 0.4149 0.06920 2018 7 22 58321 0.1923 0.4138 0.06908 2018 7 23 58322 0.1933 0.4128 0.06911 2018 7 24 58323 0.1943 0.4117 0.06925 2018 7 25 58324 0.1953 0.4106 0.06947 2018 7 26 58325 0.1964 0.4095 0.06972 2018 7 27 58326 0.1973 0.4083 0.06998 2018 7 28 58327 0.1982 0.4072 0.07020 2018 7 29 58328 0.1991 0.4061 0.07036 2018 7 30 58329 0.1999 0.4050 0.07042 2018 7 31 58330 0.2006 0.4038 0.07035 2018 8 1 58331 0.2013 0.4026 0.07015 2018 8 2 58332 0.2020 0.4013 0.06986 2018 8 3 58333 0.2027 0.4001 0.06953 2018 8 4 58334 0.2034 0.3989 0.06917 2018 8 5 58335 0.2040 0.3976 0.06884 2018 8 6 58336 0.2047 0.3964 0.06860 2018 8 7 58337 0.2053 0.3952 0.06848 2018 8 8 58338 0.2059 0.3939 0.06849 2018 8 9 58339 0.2064 0.3927 0.06859 2018 8 10 58340 0.2069 0.3914 0.06868 2018 8 11 58341 0.2074 0.3901 0.06867 2018 8 12 58342 0.2078 0.3887 0.06853 2018 8 13 58343 0.2083 0.3874 0.06824 2018 8 14 58344 0.2087 0.3860 0.06783 2018 8 15 58345 0.2091 0.3847 0.06739 2018 8 16 58346 0.2094 0.3833 0.06700 2018 8 17 58347 0.2098 0.3819 0.06671 2018 8 18 58348 0.2101 0.3805 0.06655 2018 8 19 58349 0.2103 0.3791 0.06653 2018 8 20 58350 0.2106 0.3777 0.06662 2018 8 21 58351 0.2108 0.3763 0.06679 2018 8 22 58352 0.2109 0.3749 0.06699 2018 8 23 58353 0.2111 0.3735 0.06718 2018 8 24 58354 0.2112 0.3721 0.06731 2018 8 25 58355 0.2113 0.3707 0.06735 2018 8 26 58356 0.2113 0.3693 0.06727 2018 8 27 58357 0.2114 0.3679 0.06704 2018 8 28 58358 0.2114 0.3664 0.06667 2018 8 29 58359 0.2114 0.3650 0.06617 2018 8 30 58360 0.2113 0.3636 0.06560 2018 8 31 58361 0.2112 0.3622 0.06499 2018 9 1 58362 0.2111 0.3607 0.06440 2018 9 2 58363 0.2110 0.3593 0.06387 2018 9 3 58364 0.2108 0.3579 0.06343 2018 9 4 58365 0.2106 0.3565 0.06306 2018 9 5 58366 0.2104 0.3550 0.06273 2018 9 6 58367 0.2101 0.3536 0.06239 2018 9 7 58368 0.2099 0.3522 0.06194 2018 9 8 58369 0.2096 0.3508 0.06133 2018 9 9 58370 0.2092 0.3494 0.06051 2018 9 10 58371 0.2088 0.3480 0.05953 2018 9 11 58372 0.2085 0.3466 0.05846 2018 9 12 58373 0.2080 0.3452 0.05738 2018 9 13 58374 0.2076 0.3438 0.05639 2018 9 14 58375 0.2071 0.3424 0.05555 2018 9 15 58376 0.2066 0.3410 0.05488 2018 9 16 58377 0.2061 0.3396 0.05437 2018 9 17 58378 0.2055 0.3383 0.05400 2018 9 18 58379 0.2049 0.3369 0.05371 2018 9 19 58380 0.2043 0.3355 0.05346 2018 9 20 58381 0.2037 0.3342 0.05319 2018 9 21 58382 0.2030 0.3329 0.05286 2018 9 22 58383 0.2023 0.3315 0.05242 2018 9 23 58384 0.2016 0.3302 0.05185 2018 9 24 58385 0.2008 0.3289 0.05115 2018 9 25 58386 0.2001 0.3276 0.05033 2018 9 26 58387 0.1993 0.3264 0.04941 2018 9 27 58388 0.1984 0.3251 0.04845 2018 9 28 58389 0.1976 0.3238 0.04750 2018 9 29 58390 0.1967 0.3226 0.04662 2018 9 30 58391 0.1958 0.3213 0.04584 2018 10 1 58392 0.1949 0.3201 0.04516 2018 10 2 58393 0.1939 0.3189 0.04455 2018 10 3 58394 0.1930 0.3177 0.04395 2018 10 4 58395 0.1920 0.3165 0.04329 2018 10 5 58396 0.1910 0.3154 0.04250 2018 10 6 58397 0.1899 0.3142 0.04153 2018 10 7 58398 0.1888 0.3131 0.04039 2018 10 8 58399 0.1878 0.3120 0.03911 2018 10 9 58400 0.1867 0.3109 0.03779 2018 10 10 58401 0.1855 0.3098 0.03652 2018 10 11 58402 0.1844 0.3087 0.03537 2018 10 12 58403 0.1832 0.3076 0.03438 2018 10 13 58404 0.1820 0.3066 0.03357 2018 10 14 58405 0.1808 0.3056 0.03292 2018 10 15 58406 0.1796 0.3046 0.03237 2018 10 16 58407 0.1783 0.3036 0.03187 2018 10 17 58408 0.1770 0.3026 0.03138 2018 10 18 58409 0.1757 0.3017 0.03082 2018 10 19 58410 0.1744 0.3008 0.03017 2018 10 20 58411 0.1731 0.2999 0.02940 2018 10 21 58412 0.1718 0.2990 0.02847 2018 10 22 58413 0.1704 0.2981 0.02741 2018 10 23 58414 0.1690 0.2973 0.02622 2018 10 24 58415 0.1676 0.2964 0.02496 2018 10 25 58416 0.1662 0.2956 0.02369 2018 10 26 58417 0.1648 0.2948 0.02247 2018 10 27 58418 0.1633 0.2941 0.02135 2018 10 28 58419 0.1619 0.2933 0.02037 2018 10 29 58420 0.1604 0.2926 0.01949 2018 10 30 58421 0.1589 0.2919 0.01866 2018 10 31 58422 0.1574 0.2913 0.01782 2018 11 1 58423 0.1559 0.2906 0.01690 2018 11 2 58424 0.1544 0.2900 0.01584 2018 11 3 58425 0.1528 0.2894 0.01463 2018 11 4 58426 0.1513 0.2888 0.01329 2018 11 5 58427 0.1497 0.2882 0.01184 2018 11 6 58428 0.1482 0.2877 0.01040 2018 11 7 58429 0.1466 0.2872 0.00905 2018 11 8 58430 0.1450 0.2867 0.00785 2018 11 9 58431 0.1434 0.2862 0.00683 2018 11 10 58432 0.1418 0.2858 0.00598 2018 11 11 58433 0.1402 0.2854 0.00527 2018 11 12 58434 0.1385 0.2850 0.00465 2018 11 13 58435 0.1369 0.2846 0.00407 2018 11 14 58436 0.1353 0.2843 0.00348 2018 11 15 58437 0.1336 0.2839 0.00283 2018 11 16 58438 0.1320 0.2837 0.00208 2018 11 17 58439 0.1303 0.2834 0.00122 2018 11 18 58440 0.1286 0.2831 0.00023 2018 11 19 58441 0.1270 0.2829 -0.00087 2018 11 20 58442 0.1253 0.2827 -0.00205 2018 11 21 58443 0.1236 0.2826 -0.00326 2018 11 22 58444 0.1219 0.2824 -0.00444 2018 11 23 58445 0.1203 0.2823 -0.00554 2018 11 24 58446 0.1186 0.2822 -0.00650 2018 11 25 58447 0.1169 0.2822 -0.00734 2018 11 26 58448 0.1152 0.2821 -0.00810 2018 11 27 58449 0.1135 0.2821 -0.00884 2018 11 28 58450 0.1118 0.2821 -0.00964 2018 11 29 58451 0.1101 0.2822 -0.01056 2018 11 30 58452 0.1084 0.2822 -0.01162 2018 12 1 58453 0.1068 0.2823 -0.01280 2018 12 2 58454 0.1051 0.2825 -0.01405 2018 12 3 58455 0.1034 0.2826 -0.01530 2018 12 4 58456 0.1017 0.2828 -0.01648 2018 12 5 58457 0.1001 0.2830 -0.01753 2018 12 6 58458 0.0984 0.2832 -0.01842 2018 12 7 58459 0.0967 0.2834 -0.01915 2018 12 8 58460 0.0951 0.2837 -0.01973 2018 12 9 58461 0.0934 0.2840 -0.02020 2018 12 10 58462 0.0918 0.2843 -0.02062 2018 12 11 58463 0.0901 0.2847 -0.02102 2018 12 12 58464 0.0885 0.2850 -0.02147 2018 12 13 58465 0.0869 0.2854 -0.02200 2018 12 14 58466 0.0852 0.2859 -0.02264 2018 12 15 58467 0.0836 0.2863 -0.02339 2018 12 16 58468 0.0820 0.2868 -0.02426 2018 12 17 58469 0.0804 0.2873 -0.02521 2018 12 18 58470 0.0789 0.2878 -0.02621 2018 12 19 58471 0.0773 0.2884 -0.02723 2018 12 20 58472 0.0757 0.2889 -0.02819 2018 12 21 58473 0.0742 0.2895 -0.02905 2018 12 22 58474 0.0727 0.2902 -0.02979 2018 12 23 58475 0.0711 0.2908 -0.03043 2018 12 24 58476 0.0696 0.2915 -0.03103 2018 12 25 58477 0.0681 0.2922 -0.03168 2018 12 26 58478 0.0666 0.2929 -0.03244 2018 12 27 58479 0.0652 0.2936 -0.03335 2018 12 28 58480 0.0637 0.2944 -0.03439 2018 12 29 58481 0.0623 0.2952 -0.03550 2018 12 30 58482 0.0609 0.2960 -0.03661 2018 12 31 58483 0.0594 0.2968 -0.03765 2019 1 1 58484 0.0581 0.2977 -0.03856 2019 1 2 58485 0.0567 0.2985 -0.03931 2019 1 3 58486 0.0553 0.2994 -0.03990 2019 1 4 58487 0.0540 0.3004 -0.04034 2019 1 5 58488 0.0527 0.3013 -0.04067 2019 1 6 58489 0.0514 0.3022 -0.04093 2019 1 7 58490 0.0501 0.3032 -0.04117 2019 1 8 58491 0.0488 0.3042 -0.04144 2019 1 9 58492 0.0476 0.3052 -0.04178 2019 1 10 58493 0.0463 0.3063 -0.04222 2019 1 11 58494 0.0451 0.3073 -0.04277 2019 1 12 58495 0.0440 0.3084 -0.04342 2019 1 13 58496 0.0428 0.3095 -0.04416 2019 1 14 58497 0.0417 0.3106 -0.04496 2019 1 15 58498 0.0405 0.3118 -0.04576 2019 1 16 58499 0.0394 0.3129 -0.04654 2019 1 17 58500 0.0384 0.3141 -0.04723 2019 1 18 58501 0.0373 0.3153 -0.04781 2019 1 19 58502 0.0363 0.3165 -0.04828 2019 1 20 58503 0.0353 0.3177 -0.04867 2019 1 21 58504 0.0343 0.3189 -0.04906 2019 1 22 58505 0.0333 0.3202 -0.04954 2019 1 23 58506 0.0324 0.3214 -0.05018 2019 1 24 58507 0.0315 0.3227 -0.05098 2019 1 25 58508 0.0306 0.3240 -0.05190 2019 1 26 58509 0.0298 0.3253 -0.05289 2019 1 27 58510 0.0289 0.3267 -0.05387 2019 1 28 58511 0.0281 0.3280 -0.05478 2019 1 29 58512 0.0274 0.3293 -0.05560 2019 1 30 58513 0.0266 0.3307 -0.05632 2019 1 31 58514 0.0259 0.3321 -0.05694 2019 2 1 58515 0.0252 0.3335 -0.05748 2019 2 2 58516 0.0245 0.3349 -0.05796 2019 2 3 58517 0.0239 0.3363 -0.05841 2019 2 4 58518 0.0233 0.3377 -0.05886 2019 2 5 58519 0.0227 0.3391 -0.05931 2019 2 6 58520 0.0221 0.3406 -0.05981 2019 2 7 58521 0.0216 0.3420 -0.06036 2019 2 8 58522 0.0211 0.3435 -0.06098 2019 2 9 58523 0.0206 0.3449 -0.06167 2019 2 10 58524 0.0202 0.3464 -0.06241 2019 2 11 58525 0.0198 0.3479 -0.06318 2019 2 12 58526 0.0194 0.3494 -0.06396 2019 2 13 58527 0.0190 0.3509 -0.06470 2019 2 14 58528 0.0187 0.3524 -0.06541 2019 2 15 58529 0.0184 0.3539 -0.06608 2019 2 16 58530 0.0181 0.3554 -0.06675 2019 2 17 58531 0.0179 0.3569 -0.06749 2019 2 18 58532 0.0177 0.3585 -0.06837 2019 2 19 58533 0.0175 0.3600 -0.06947 2019 2 20 58534 0.0173 0.3615 -0.07080 2019 2 21 58535 0.0172 0.3631 -0.07233 2019 2 22 58536 0.0171 0.3646 -0.07396 2019 2 23 58537 0.0170 0.3662 -0.07558 2019 2 24 58538 0.0170 0.3677 -0.07709 2019 2 25 58539 0.0170 0.3692 -0.07842 2019 2 26 58540 0.0170 0.3708 -0.07956 2019 2 27 58541 0.0171 0.3723 -0.08054 2019 2 28 58542 0.0172 0.3739 -0.08140 2019 3 1 58543 0.0173 0.3754 -0.08216 2019 3 2 58544 0.0175 0.3770 -0.08292 2019 3 3 58545 0.0176 0.3785 -0.08376 2019 3 4 58546 0.0178 0.3801 -0.08463 2019 3 5 58547 0.0181 0.3816 -0.08559 2019 3 6 58548 0.0184 0.3831 -0.08671 2019 3 7 58549 0.0186 0.3847 -0.08794 2019 3 8 58550 0.0190 0.3862 -0.08929 2019 3 9 58551 0.0193 0.3877 -0.09079 2019 3 10 58552 0.0197 0.3892 -0.09236 2019 3 11 58553 0.0201 0.3908 -0.09396 2019 3 12 58554 0.0206 0.3923 -0.09554 2019 3 13 58555 0.0211 0.3938 -0.09705 2019 3 14 58556 0.0216 0.3953 -0.09848 2019 3 15 58557 0.0221 0.3968 -0.09981 2019 3 16 58558 0.0227 0.3983 -0.10113 2019 3 17 58559 0.0233 0.3997 -0.10251 2019 3 18 58560 0.0239 0.4012 -0.10401 2019 3 19 58561 0.0245 0.4027 -0.10566 2019 3 20 58562 0.0252 0.4041 -0.10748 2019 3 21 58563 0.0259 0.4055 -0.10946 2019 3 22 58564 0.0266 0.4070 -0.11151 2019 3 23 58565 0.0274 0.4084 -0.11345 2019 3 24 58566 0.0282 0.4098 -0.11523 2019 3 25 58567 0.0290 0.4112 -0.11678 2019 3 26 58568 0.0298 0.4126 -0.11807 2019 3 27 58569 0.0307 0.4140 -0.11911 2019 3 28 58570 0.0316 0.4153 -0.12000 2019 3 29 58571 0.0325 0.4167 -0.12088 2019 3 30 58572 0.0335 0.4180 -0.12178 2019 3 31 58573 0.0345 0.4193 -0.12271 2019 4 1 58574 0.0355 0.4206 -0.12370 2019 4 2 58575 0.0365 0.4219 -0.12479 2019 4 3 58576 0.0375 0.4232 -0.12607 2019 4 4 58577 0.0386 0.4245 -0.12751 2019 4 5 58578 0.0397 0.4257 -0.12903 2019 4 6 58579 0.0408 0.4270 -0.13059 2019 4 7 58580 0.0420 0.4282 -0.13218 2019 4 8 58581 0.0431 0.4294 -0.13373 2019 4 9 58582 0.0443 0.4305 -0.13519 2019 4 10 58583 0.0455 0.4317 -0.13648 2019 4 11 58584 0.0468 0.4329 -0.13764 2019 4 12 58585 0.0480 0.4340 -0.13869 2019 4 13 58586 0.0493 0.4351 -0.13973 2019 4 14 58587 0.0506 0.4362 -0.14085 2019 4 15 58588 0.0519 0.4373 -0.14207 2019 4 16 58589 0.0533 0.4383 -0.14350 2019 4 17 58590 0.0546 0.4393 -0.14514 2019 4 18 58591 0.0560 0.4403 -0.14689 2019 4 19 58592 0.0574 0.4413 -0.14864 2019 4 20 58593 0.0589 0.4423 -0.15026 2019 4 21 58594 0.0603 0.4432 -0.15168 2019 4 22 58595 0.0618 0.4442 -0.15289 2019 4 23 58596 0.0632 0.4451 -0.15387 2019 4 24 58597 0.0647 0.4460 -0.15477 2019 4 25 58598 0.0662 0.4468 -0.15558 2019 4 26 58599 0.0678 0.4476 -0.15634 2019 4 27 58600 0.0693 0.4485 -0.15715 2019 4 28 58601 0.0708 0.4492 -0.15803 2019 4 29 58602 0.0724 0.4500 -0.15898 2019 4 30 58603 0.0740 0.4508 -0.16008 2019 5 1 58604 0.0756 0.4515 -0.16131 2019 5 2 58605 0.0772 0.4522 -0.16258 2019 5 3 58606 0.0788 0.4528 -0.16388 2019 5 4 58607 0.0805 0.4535 -0.16519 2019 5 5 58608 0.0821 0.4541 -0.16639 2019 5 6 58609 0.0838 0.4547 -0.16744 2019 5 7 58610 0.0855 0.4553 -0.16830 2019 5 8 58611 0.0872 0.4558 -0.16897 2019 5 9 58612 0.0889 0.4563 -0.16952 2019 5 10 58613 0.0906 0.4568 -0.17004 2019 5 11 58614 0.0923 0.4573 -0.17056 2019 5 12 58615 0.0940 0.4577 -0.17119 2019 5 13 58616 0.0957 0.4582 -0.17193 2019 5 14 58617 0.0975 0.4585 -0.17285 2019 5 15 58618 0.0992 0.4589 -0.17391 2019 5 16 58619 0.1010 0.4592 -0.17500 2019 5 17 58620 0.1027 0.4595 -0.17599 2019 5 18 58621 0.1045 0.4598 -0.17684 2019 5 19 58622 0.1062 0.4601 -0.17748 2019 5 20 58623 0.1080 0.4603 -0.17790 2019 5 21 58624 0.1098 0.4605 -0.17817 2019 5 22 58625 0.1116 0.4607 -0.17836 2019 5 23 58626 0.1134 0.4608 -0.17862 2019 5 24 58627 0.1151 0.4610 -0.17891 2019 5 25 58628 0.1169 0.4610 -0.17926 2019 5 26 58629 0.1187 0.4611 -0.17960 2019 5 27 58630 0.1205 0.4611 -0.18001 2019 5 28 58631 0.1223 0.4612 -0.18048 2019 5 29 58632 0.1241 0.4611 -0.18108 2019 5 30 58633 0.1259 0.4611 -0.18176 2019 5 31 58634 0.1277 0.4610 -0.18247 2019 6 1 58635 0.1294 0.4609 -0.18317 2019 6 2 58636 0.1312 0.4608 -0.18379 2019 6 3 58637 0.1330 0.4606 -0.18432 2019 6 4 58638 0.1348 0.4604 -0.18476 2019 6 5 58639 0.1366 0.4602 -0.18505 2019 6 6 58640 0.1383 0.4600 -0.18526 2019 6 7 58641 0.1401 0.4597 -0.18543 2019 6 8 58642 0.1418 0.4594 -0.18572 2019 6 9 58643 0.1436 0.4591 -0.18616 2019 6 10 58644 0.1453 0.4588 -0.18675 2019 6 11 58645 0.1471 0.4584 -0.18747 2019 6 12 58646 0.1488 0.4580 -0.18823 2019 6 13 58647 0.1505 0.4576 -0.18896 2019 6 14 58648 0.1522 0.4571 -0.18956 2019 6 15 58649 0.1539 0.4566 -0.18997 2019 6 16 58650 0.1556 0.4561 -0.19019 2019 6 17 58651 0.1573 0.4556 -0.19021 2019 6 18 58652 0.1590 0.4550 -0.19005 2019 6 19 58653 0.1606 0.4544 -0.18980 2019 6 20 58654 0.1623 0.4538 -0.18956 2019 6 21 58655 0.1639 0.4532 -0.18938 2019 6 22 58656 0.1655 0.4525 -0.18926 2019 6 23 58657 0.1671 0.4518 -0.18916 2019 6 24 58658 0.1687 0.4511 -0.18917 2019 6 25 58659 0.1703 0.4504 -0.18925 2019 6 26 58660 0.1719 0.4496 -0.18935 2019 6 27 58661 0.1734 0.4488 -0.18950 2019 6 28 58662 0.1750 0.4480 -0.18967 2019 6 29 58663 0.1765 0.4471 -0.18983 2019 6 30 58664 0.1780 0.4463 -0.18982 2019 7 1 58665 0.1795 0.4454 -0.18973 2019 7 2 58666 0.1809 0.4445 -0.18961 2019 7 3 58667 0.1824 0.4436 -0.18941 2019 7 4 58668 0.1838 0.4426 -0.18921 2019 7 5 58669 0.1852 0.4416 -0.18918 2019 7 6 58670 0.1866 0.4406 -0.18928 2019 7 7 58671 0.1880 0.4396 -0.18960 2019 7 8 58672 0.1893 0.4385 -0.19008 2019 7 9 58673 0.1907 0.4375 -0.19065 2019 7 10 58674 0.1920 0.4364 -0.19122 2019 7 11 58675 0.1933 0.4353 -0.19172 2019 7 12 58676 0.1945 0.4342 -0.19213 2019 7 13 58677 0.1958 0.4330 -0.19238 2019 7 14 58678 0.1970 0.4318 -0.19245 2019 7 15 58679 0.1982 0.4306 -0.19239 2019 7 16 58680 0.1994 0.4294 -0.19227 2019 7 17 58681 0.2005 0.4282 -0.19214 2019 7 18 58682 0.2016 0.4270 -0.19211 2019 7 19 58683 0.2027 0.4257 -0.19211 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) 58292 -106.84 0.47 -11.96 0.12 58293 -107.08 0.47 -11.88 0.12 58294 -107.53 0.47 -11.74 0.12 58295 -107.93 0.32 -11.68 0.16 58296 -108.11 0.22 -11.77 0.03 58297 -108.08 0.22 -11.91 0.03 58298 -107.98 0.22 -11.96 0.03 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58292 -0.137 0.185 -0.132 0.120 58293 -0.129 0.185 -0.120 0.120 58294 -0.122 0.185 -0.103 0.120 58295 -0.114 0.128 -0.082 0.160 58296 -0.106 0.087 -0.056 0.027 58297 -0.098 0.087 -0.029 0.027 58298 -0.090 0.087 0.000 0.027 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).