********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 12 July 2018 Vol. XXXI No. 028 ______________________________________________________________________ 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 *********************************************************************** * * * There will NOT be a leap second introduced * * in UTC on 31 December 2018 * * * * 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 6 58305 0.17455 .00009 0.42527 .00009 0.072410 0.000015 18 7 7 58306 0.17631 .00009 0.42514 .00009 0.072344 0.000015 18 7 8 58307 0.17776 .00009 0.42499 .00009 0.072201 0.000013 18 7 9 58308 0.17873 .00009 0.42463 .00009 0.072029 0.000008 18 7 10 58309 0.17939 .00009 0.42377 .00009 0.071879 0.000006 18 7 11 58310 0.18028 .00009 0.42268 .00009 0.071772 0.000005 18 7 12 58311 0.18137 .00009 0.42166 .00009 0.071738 0.000005 _______________________________________________________________________ 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 = 0.1157 + 0.0891 cos A + 0.0936 sin A - 0.0171 cos C - 0.0143 sin C y = 0.3494 + 0.0902 cos A - 0.0851 sin A - 0.0143 cos C + 0.0171 sin C UT1-UTC = 0.0762 - 0.00071 (MJD - 58319) - (UT2-UT1) where A = 2*pi*(MJD-58311)/365.25 and C = 2*pi*(MJD-58311)/435. TAI-UTC(MJD 58312) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58311)**0.80 S t = 0.00025 (MJD-58311)**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 13 58312 0.1826 0.4206 0.07178 2018 7 14 58313 0.1837 0.4197 0.07179 2018 7 15 58314 0.1848 0.4187 0.07166 2018 7 16 58315 0.1858 0.4177 0.07136 2018 7 17 58316 0.1869 0.4167 0.07089 2018 7 18 58317 0.1879 0.4156 0.07034 2018 7 19 58318 0.1890 0.4145 0.06979 2018 7 20 58319 0.1901 0.4134 0.06933 2018 7 21 58320 0.1911 0.4122 0.06901 2018 7 22 58321 0.1921 0.4111 0.06885 2018 7 23 58322 0.1931 0.4099 0.06889 2018 7 24 58323 0.1940 0.4086 0.06909 2018 7 25 58324 0.1950 0.4074 0.06939 2018 7 26 58325 0.1960 0.4062 0.06978 2018 7 27 58326 0.1970 0.4050 0.07022 2018 7 28 58327 0.1978 0.4039 0.07069 2018 7 29 58328 0.1986 0.4027 0.07114 2018 7 30 58329 0.1993 0.4015 0.07152 2018 7 31 58330 0.2000 0.4003 0.07180 2018 8 1 58331 0.2007 0.3991 0.07198 2018 8 2 58332 0.2014 0.3978 0.07207 2018 8 3 58333 0.2020 0.3965 0.07210 2018 8 4 58334 0.2027 0.3952 0.07208 2018 8 5 58335 0.2033 0.3939 0.07206 2018 8 6 58336 0.2038 0.3926 0.07207 2018 8 7 58337 0.2044 0.3913 0.07215 2018 8 8 58338 0.2049 0.3900 0.07228 2018 8 9 58339 0.2053 0.3887 0.07241 2018 8 10 58340 0.2058 0.3873 0.07249 2018 8 11 58341 0.2062 0.3860 0.07242 2018 8 12 58342 0.2066 0.3846 0.07216 2018 8 13 58343 0.2070 0.3832 0.07172 2018 8 14 58344 0.2074 0.3818 0.07114 2018 8 15 58345 0.2077 0.3804 0.07053 2018 8 16 58346 0.2080 0.3790 0.06996 2018 8 17 58347 0.2082 0.3777 0.06951 2018 8 18 58348 0.2085 0.3763 0.06921 2018 8 19 58349 0.2087 0.3749 0.06906 2018 8 20 58350 0.2089 0.3735 0.06905 2018 8 21 58351 0.2090 0.3721 0.06915 2018 8 22 58352 0.2091 0.3706 0.06932 2018 8 23 58353 0.2092 0.3692 0.06950 2018 8 24 58354 0.2093 0.3678 0.06964 2018 8 25 58355 0.2093 0.3664 0.06971 2018 8 26 58356 0.2093 0.3650 0.06966 2018 8 27 58357 0.2093 0.3635 0.06948 2018 8 28 58358 0.2092 0.3621 0.06915 2018 8 29 58359 0.2091 0.3607 0.06870 2018 8 30 58360 0.2090 0.3593 0.06816 2018 8 31 58361 0.2089 0.3579 0.06759 2018 9 1 58362 0.2087 0.3564 0.06701 2018 9 2 58363 0.2085 0.3550 0.06649 2018 9 3 58364 0.2083 0.3536 0.06605 2018 9 4 58365 0.2080 0.3522 0.06569 2018 9 5 58366 0.2077 0.3508 0.06537 2018 9 6 58367 0.2074 0.3494 0.06505 2018 9 7 58368 0.2071 0.3480 0.06464 2018 9 8 58369 0.2067 0.3466 0.06408 2018 9 9 58370 0.2063 0.3452 0.06334 2018 9 10 58371 0.2059 0.3438 0.06244 2018 9 11 58372 0.2054 0.3424 0.06145 2018 9 12 58373 0.2050 0.3410 0.06046 2018 9 13 58374 0.2045 0.3396 0.05957 2018 9 14 58375 0.2039 0.3383 0.05884 2018 9 15 58376 0.2034 0.3369 0.05828 2018 9 16 58377 0.2028 0.3356 0.05787 2018 9 17 58378 0.2022 0.3342 0.05760 2018 9 18 58379 0.2015 0.3329 0.05740 2018 9 19 58380 0.2009 0.3316 0.05724 2018 9 20 58381 0.2002 0.3303 0.05705 2018 9 21 58382 0.1994 0.3290 0.05680 2018 9 22 58383 0.1987 0.3277 0.05644 2018 9 23 58384 0.1979 0.3264 0.05594 2018 9 24 58385 0.1971 0.3251 0.05530 2018 9 25 58386 0.1963 0.3238 0.05453 2018 9 26 58387 0.1955 0.3226 0.05367 2018 9 27 58388 0.1946 0.3214 0.05276 2018 9 28 58389 0.1937 0.3201 0.05186 2018 9 29 58390 0.1928 0.3189 0.05103 2018 9 30 58391 0.1918 0.3177 0.05029 2018 10 1 58392 0.1909 0.3165 0.04965 2018 10 2 58393 0.1899 0.3154 0.04907 2018 10 3 58394 0.1888 0.3142 0.04851 2018 10 4 58395 0.1878 0.3131 0.04789 2018 10 5 58396 0.1868 0.3119 0.04713 2018 10 6 58397 0.1857 0.3108 0.04619 2018 10 7 58398 0.1846 0.3097 0.04506 2018 10 8 58399 0.1834 0.3087 0.04379 2018 10 9 58400 0.1823 0.3076 0.04245 2018 10 10 58401 0.1811 0.3065 0.04115 2018 10 11 58402 0.1799 0.3055 0.03995 2018 10 12 58403 0.1787 0.3045 0.03891 2018 10 13 58404 0.1775 0.3035 0.03804 2018 10 14 58405 0.1762 0.3025 0.03730 2018 10 15 58406 0.1750 0.3016 0.03668 2018 10 16 58407 0.1737 0.3006 0.03611 2018 10 17 58408 0.1724 0.2997 0.03554 2018 10 18 58409 0.1711 0.2988 0.03494 2018 10 19 58410 0.1697 0.2979 0.03424 2018 10 20 58411 0.1684 0.2971 0.03343 2018 10 21 58412 0.1670 0.2962 0.03249 2018 10 22 58413 0.1656 0.2954 0.03143 2018 10 23 58414 0.1642 0.2946 0.03026 2018 10 24 58415 0.1628 0.2939 0.02903 2018 10 25 58416 0.1613 0.2931 0.02779 2018 10 26 58417 0.1599 0.2924 0.02662 2018 10 27 58418 0.1584 0.2917 0.02554 2018 10 28 58419 0.1569 0.2910 0.02459 2018 10 29 58420 0.1554 0.2903 0.02371 2018 10 30 58421 0.1539 0.2897 0.02288 2018 10 31 58422 0.1524 0.2890 0.02204 2018 11 1 58423 0.1509 0.2884 0.02110 2018 11 2 58424 0.1493 0.2879 0.02003 2018 11 3 58425 0.1478 0.2873 0.01880 2018 11 4 58426 0.1462 0.2868 0.01744 2018 11 5 58427 0.1446 0.2863 0.01600 2018 11 6 58428 0.1430 0.2858 0.01457 2018 11 7 58429 0.1414 0.2853 0.01324 2018 11 8 58430 0.1398 0.2849 0.01205 2018 11 9 58431 0.1382 0.2845 0.01104 2018 11 10 58432 0.1366 0.2841 0.01020 2018 11 11 58433 0.1350 0.2837 0.00950 2018 11 12 58434 0.1333 0.2834 0.00889 2018 11 13 58435 0.1317 0.2831 0.00831 2018 11 14 58436 0.1300 0.2828 0.00772 2018 11 15 58437 0.1284 0.2826 0.00707 2018 11 16 58438 0.1267 0.2823 0.00631 2018 11 17 58439 0.1251 0.2821 0.00543 2018 11 18 58440 0.1234 0.2819 0.00443 2018 11 19 58441 0.1217 0.2818 0.00332 2018 11 20 58442 0.1200 0.2816 0.00212 2018 11 21 58443 0.1184 0.2815 0.00088 2018 11 22 58444 0.1167 0.2814 -0.00033 2018 11 23 58445 0.1150 0.2814 -0.00145 2018 11 24 58446 0.1133 0.2814 -0.00245 2018 11 25 58447 0.1116 0.2814 -0.00332 2018 11 26 58448 0.1099 0.2814 -0.00411 2018 11 27 58449 0.1083 0.2814 -0.00489 2018 11 28 58450 0.1066 0.2815 -0.00572 2018 11 29 58451 0.1049 0.2816 -0.00667 2018 11 30 58452 0.1032 0.2817 -0.00776 2018 12 1 58453 0.1015 0.2819 -0.00897 2018 12 2 58454 0.0999 0.2821 -0.01025 2018 12 3 58455 0.0982 0.2823 -0.01152 2018 12 4 58456 0.0965 0.2825 -0.01271 2018 12 5 58457 0.0949 0.2827 -0.01378 2018 12 6 58458 0.0932 0.2830 -0.01468 2018 12 7 58459 0.0916 0.2833 -0.01541 2018 12 8 58460 0.0899 0.2837 -0.01599 2018 12 9 58461 0.0883 0.2840 -0.01647 2018 12 10 58462 0.0866 0.2844 -0.01688 2018 12 11 58463 0.0850 0.2848 -0.01728 2018 12 12 58464 0.0834 0.2853 -0.01772 2018 12 13 58465 0.0818 0.2857 -0.01825 2018 12 14 58466 0.0802 0.2862 -0.01888 2018 12 15 58467 0.0786 0.2867 -0.01962 2018 12 16 58468 0.0770 0.2872 -0.02047 2018 12 17 58469 0.0754 0.2878 -0.02141 2018 12 18 58470 0.0739 0.2884 -0.02241 2018 12 19 58471 0.0723 0.2890 -0.02341 2018 12 20 58472 0.0708 0.2896 -0.02436 2018 12 21 58473 0.0693 0.2903 -0.02521 2018 12 22 58474 0.0678 0.2909 -0.02594 2018 12 23 58475 0.0663 0.2917 -0.02657 2018 12 24 58476 0.0648 0.2924 -0.02716 2018 12 25 58477 0.0633 0.2931 -0.02779 2018 12 26 58478 0.0619 0.2939 -0.02854 2018 12 27 58479 0.0604 0.2947 -0.02943 2018 12 28 58480 0.0590 0.2955 -0.03046 2018 12 29 58481 0.0576 0.2964 -0.03155 2018 12 30 58482 0.0562 0.2972 -0.03265 2018 12 31 58483 0.0548 0.2981 -0.03367 2019 1 1 58484 0.0535 0.2990 -0.03455 2019 1 2 58485 0.0521 0.2999 -0.03528 2019 1 3 58486 0.0508 0.3009 -0.03585 2019 1 4 58487 0.0495 0.3019 -0.03626 2019 1 5 58488 0.0482 0.3029 -0.03655 2019 1 6 58489 0.0469 0.3039 -0.03678 2019 1 7 58490 0.0457 0.3049 -0.03697 2019 1 8 58491 0.0445 0.3059 -0.03719 2019 1 9 58492 0.0433 0.3070 -0.03746 2019 1 10 58493 0.0421 0.3081 -0.03782 2019 1 11 58494 0.0409 0.3092 -0.03827 2019 1 12 58495 0.0398 0.3103 -0.03881 2019 1 13 58496 0.0386 0.3115 -0.03942 2019 1 14 58497 0.0375 0.3127 -0.04006 2019 1 15 58498 0.0365 0.3138 -0.04071 2019 1 16 58499 0.0354 0.3150 -0.04132 2019 1 17 58500 0.0344 0.3163 -0.04186 2019 1 18 58501 0.0334 0.3175 -0.04231 2019 1 19 58502 0.0324 0.3187 -0.04271 2019 1 20 58503 0.0314 0.3200 -0.04311 2019 1 21 58504 0.0305 0.3213 -0.04359 2019 1 22 58505 0.0296 0.3226 -0.04424 2019 1 23 58506 0.0287 0.3239 -0.04511 2019 1 24 58507 0.0279 0.3252 -0.04617 2019 1 25 58508 0.0270 0.3266 -0.04736 2019 1 26 58509 0.0262 0.3279 -0.04855 2019 1 27 58510 0.0254 0.3293 -0.04965 2019 1 28 58511 0.0247 0.3307 -0.05057 2019 1 29 58512 0.0240 0.3320 -0.05127 2019 1 30 58513 0.0233 0.3334 -0.05178 2019 1 31 58514 0.0226 0.3349 -0.05212 2019 2 1 58515 0.0219 0.3363 -0.05235 2019 2 2 58516 0.0213 0.3377 -0.05255 2019 2 3 58517 0.0207 0.3392 -0.05276 2019 2 4 58518 0.0202 0.3406 -0.05306 2019 2 5 58519 0.0196 0.3421 -0.05348 2019 2 6 58520 0.0191 0.3436 -0.05404 2019 2 7 58521 0.0187 0.3451 -0.05477 2019 2 8 58522 0.0182 0.3466 -0.05564 2019 2 9 58523 0.0178 0.3481 -0.05663 2019 2 10 58524 0.0174 0.3496 -0.05769 2019 2 11 58525 0.0170 0.3511 -0.05878 2019 2 12 58526 0.0167 0.3526 -0.05987 2019 2 13 58527 0.0164 0.3541 -0.06092 2019 2 14 58528 0.0161 0.3557 -0.06190 2019 2 15 58529 0.0159 0.3572 -0.06282 2019 2 16 58530 0.0157 0.3588 -0.06370 2019 2 17 58531 0.0155 0.3603 -0.06462 2019 2 18 58532 0.0153 0.3619 -0.06565 2019 2 19 58533 0.0152 0.3634 -0.06686 2019 2 20 58534 0.0151 0.3650 -0.06829 2019 2 21 58535 0.0151 0.3665 -0.06991 2019 2 22 58536 0.0150 0.3681 -0.07165 2019 2 23 58537 0.0150 0.3697 -0.07344 2019 2 24 58538 0.0151 0.3712 -0.07517 2019 2 25 58539 0.0151 0.3728 -0.07678 2019 2 26 58540 0.0152 0.3744 -0.07821 2019 2 27 58541 0.0153 0.3759 -0.07949 2019 2 28 58542 0.0155 0.3775 -0.08064 2019 3 1 58543 0.0157 0.3791 -0.08168 2019 3 2 58544 0.0159 0.3806 -0.08268 2019 3 3 58545 0.0161 0.3822 -0.08371 2019 3 4 58546 0.0164 0.3838 -0.08478 2019 3 5 58547 0.0167 0.3853 -0.08588 2019 3 6 58548 0.0170 0.3869 -0.08707 2019 3 7 58549 0.0174 0.3884 -0.08835 2019 3 8 58550 0.0178 0.3900 -0.08976 2019 3 9 58551 0.0182 0.3915 -0.09120 2019 3 10 58552 0.0186 0.3930 -0.09265 2019 3 11 58553 0.0191 0.3945 -0.09408 2019 3 12 58554 0.0196 0.3961 -0.09540 2019 3 13 58555 0.0201 0.3976 -0.09656 2019 3 14 58556 0.0207 0.3991 -0.09760 2019 3 15 58557 0.0213 0.4006 -0.09863 2019 3 16 58558 0.0219 0.4021 -0.09967 2019 3 17 58559 0.0226 0.4036 -0.10076 2019 3 18 58560 0.0233 0.4050 -0.10196 2019 3 19 58561 0.0240 0.4065 -0.10338 2019 3 20 58562 0.0247 0.4079 -0.10509 2019 3 21 58563 0.0255 0.4094 -0.10703 2019 3 22 58564 0.0263 0.4108 -0.10902 2019 3 23 58565 0.0271 0.4122 -0.11095 2019 3 24 58566 0.0279 0.4137 -0.11277 2019 3 25 58567 0.0288 0.4150 -0.11442 2019 3 26 58568 0.0297 0.4164 -0.11587 2019 3 27 58569 0.0306 0.4178 -0.11710 2019 3 28 58570 0.0316 0.4192 -0.11816 2019 3 29 58571 0.0326 0.4205 -0.11911 2019 3 30 58572 0.0336 0.4218 -0.12002 2019 3 31 58573 0.0346 0.4232 -0.12096 2019 4 1 58574 0.0357 0.4245 -0.12192 2019 4 2 58575 0.0368 0.4257 -0.12299 2019 4 3 58576 0.0379 0.4270 -0.12420 2019 4 4 58577 0.0390 0.4283 -0.12552 2019 4 5 58578 0.0402 0.4295 -0.12692 2019 4 6 58579 0.0413 0.4307 -0.12833 2019 4 7 58580 0.0425 0.4319 -0.12972 2019 4 8 58581 0.0438 0.4331 -0.13106 2019 4 9 58582 0.0450 0.4343 -0.13227 2019 4 10 58583 0.0463 0.4354 -0.13345 2019 4 11 58584 0.0476 0.4365 -0.13454 2019 4 12 58585 0.0489 0.4376 -0.13558 2019 4 13 58586 0.0502 0.4387 -0.13667 2019 4 14 58587 0.0516 0.4398 -0.13786 2019 4 15 58588 0.0530 0.4409 -0.13921 2019 4 16 58589 0.0544 0.4419 -0.14080 2019 4 17 58590 0.0558 0.4429 -0.14262 2019 4 18 58591 0.0572 0.4439 -0.14449 2019 4 19 58592 0.0587 0.4448 -0.14636 2019 4 20 58593 0.0601 0.4458 -0.14813 2019 4 21 58594 0.0616 0.4467 -0.14966 2019 4 22 58595 0.0631 0.4476 -0.15093 2019 4 23 58596 0.0647 0.4485 -0.15194 2019 4 24 58597 0.0662 0.4493 -0.15272 2019 4 25 58598 0.0678 0.4502 -0.15337 2019 4 26 58599 0.0693 0.4510 -0.15396 2019 4 27 58600 0.0709 0.4518 -0.15451 2019 4 28 58601 0.0725 0.4525 -0.15510 2019 4 29 58602 0.0742 0.4532 -0.15573 2019 4 30 58603 0.0758 0.4540 -0.15648 2019 5 1 58604 0.0774 0.4546 -0.15733 2019 5 2 58605 0.0791 0.4553 -0.15828 2019 5 3 58606 0.0808 0.4559 -0.15923 2019 5 4 58607 0.0825 0.4565 -0.16019 2019 5 5 58608 0.0841 0.4571 -0.16109 2019 5 6 58609 0.0859 0.4577 -0.16187 2019 5 7 58610 0.0876 0.4582 -0.16256 2019 5 8 58611 0.0893 0.4587 -0.16317 2019 5 9 58612 0.0910 0.4592 -0.16384 2019 5 10 58613 0.0928 0.4597 -0.16454 2019 5 11 58614 0.0945 0.4601 -0.16531 2019 5 12 58615 0.0963 0.4605 -0.16613 2019 5 13 58616 0.0981 0.4609 -0.16709 2019 5 14 58617 0.0998 0.4612 -0.16817 2019 5 15 58618 0.1016 0.4615 -0.16942 2019 5 16 58619 0.1034 0.4618 -0.17074 2019 5 17 58620 0.1052 0.4621 -0.17201 2019 5 18 58621 0.1070 0.4623 -0.17316 2019 5 19 58622 0.1088 0.4625 -0.17409 2019 5 20 58623 0.1106 0.4627 -0.17486 2019 5 21 58624 0.1124 0.4629 -0.17548 2019 5 22 58625 0.1142 0.4630 -0.17593 2019 5 23 58626 0.1161 0.4631 -0.17627 2019 5 24 58627 0.1179 0.4632 -0.17652 2019 5 25 58628 0.1197 0.4632 -0.17683 2019 5 26 58629 0.1215 0.4632 -0.17720 2019 5 27 58630 0.1233 0.4632 -0.17766 2019 5 28 58631 0.1251 0.4631 -0.17824 2019 5 29 58632 0.1270 0.4631 -0.17889 2019 5 30 58633 0.1288 0.4630 -0.17962 2019 5 31 58634 0.1306 0.4629 -0.18034 2019 6 1 58635 0.1324 0.4627 -0.18103 2019 6 2 58636 0.1342 0.4625 -0.18164 2019 6 3 58637 0.1360 0.4623 -0.18211 2019 6 4 58638 0.1378 0.4621 -0.18241 2019 6 5 58639 0.1396 0.4618 -0.18258 2019 6 6 58640 0.1414 0.4615 -0.18277 2019 6 7 58641 0.1432 0.4612 -0.18300 2019 6 8 58642 0.1450 0.4608 -0.18334 2019 6 9 58643 0.1467 0.4604 -0.18376 2019 6 10 58644 0.1485 0.4600 -0.18435 2019 6 11 58645 0.1502 0.4596 -0.18502 2019 6 12 58646 0.1520 0.4591 -0.18571 2019 6 13 58647 0.1537 0.4587 -0.18635 2019 6 14 58648 0.1554 0.4581 -0.18690 2019 6 15 58649 0.1572 0.4576 -0.18731 2019 6 16 58650 0.1589 0.4570 -0.18745 2019 6 17 58651 0.1606 0.4564 -0.18744 2019 6 18 58652 0.1622 0.4558 -0.18736 2019 6 19 58653 0.1639 0.4552 -0.18718 2019 6 20 58654 0.1656 0.4545 -0.18695 2019 6 21 58655 0.1672 0.4538 -0.18680 2019 6 22 58656 0.1688 0.4531 -0.18668 2019 6 23 58657 0.1704 0.4523 -0.18670 2019 6 24 58658 0.1720 0.4515 -0.18685 2019 6 25 58659 0.1736 0.4507 -0.18711 2019 6 26 58660 0.1752 0.4499 -0.18748 2019 6 27 58661 0.1768 0.4490 -0.18792 2019 6 28 58662 0.1783 0.4482 -0.18842 2019 6 29 58663 0.1798 0.4473 -0.18891 2019 6 30 58664 0.1813 0.4463 -0.18929 2019 7 1 58665 0.1828 0.4454 -0.18957 2019 7 2 58666 0.1843 0.4444 -0.18975 2019 7 3 58667 0.1857 0.4434 -0.18989 2019 7 4 58668 0.1871 0.4424 -0.19013 2019 7 5 58669 0.1885 0.4413 -0.19044 2019 7 6 58670 0.1899 0.4403 -0.19089 2019 7 7 58671 0.1913 0.4392 -0.19153 2019 7 8 58672 0.1926 0.4381 -0.19233 2019 7 9 58673 0.1940 0.4369 -0.19320 2019 7 10 58674 0.1953 0.4358 -0.19408 2019 7 11 58675 0.1965 0.4346 -0.19487 2019 7 12 58676 0.1978 0.4334 -0.19545 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) 58289 -106.90 0.46 -11.78 0.11 58290 -106.97 0.46 -11.86 0.11 58291 -106.87 0.46 -11.94 0.11 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58289 -0.158 0.183 -0.120 0.115 58290 -0.151 0.183 -0.128 0.115 58291 -0.144 0.183 -0.139 0.115 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).