********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 28 June 2018 Vol. XXXI No. 026 ______________________________________________________________________ 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 * * * * If you wish to be a contributor to the IERS Conventions future * * editions, please go to the following web sites for more details: * * (The deadline for applications has been extended to June 29, 2018.) * * http://maia.usno.navy.mil/conventions/announcements/ * * call-for-contributors.php * * http://iers-conventions.obspm.fr/announcements/ * * call-for-contributors.php * * * * 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 22 58291 0.14461 .00009 0.43734 .00009 0.067056 0.000031 18 6 23 58292 0.14665 .00009 0.43659 .00009 0.066865 0.000030 18 6 24 58293 0.14855 .00009 0.43580 .00009 0.066880 0.000027 18 6 25 58294 0.15034 .00009 0.43492 .00009 0.067156 0.000025 18 6 26 58295 0.15217 .00009 0.43383 .00009 0.067580 0.000019 18 6 27 58296 0.15407 .00009 0.43267 .00009 0.068107 0.000019 18 6 28 58297 0.15609 .00009 0.43164 .00009 0.068744 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 = 0.1107 + 0.0639 cos A + 0.1147 sin A - 0.0124 cos C - 0.0194 sin C y = 0.3446 + 0.1099 cos A - 0.0607 sin A - 0.0194 cos C + 0.0124 sin C UT1-UTC = 0.0929 - 0.00073 (MJD - 58305) - (UT2-UT1) where A = 2*pi*(MJD-58297)/365.25 and C = 2*pi*(MJD-58297)/435. TAI-UTC(MJD 58298) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58297)**0.80 S t = 0.00025 (MJD-58297)**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 29 58298 0.1580 0.4308 0.06934 2018 6 30 58299 0.1599 0.4301 0.06994 2018 7 1 58300 0.1616 0.4294 0.07053 2018 7 2 58301 0.1631 0.4287 0.07110 2018 7 3 58302 0.1646 0.4280 0.07160 2018 7 4 58303 0.1659 0.4272 0.07200 2018 7 5 58304 0.1672 0.4263 0.07228 2018 7 6 58305 0.1685 0.4254 0.07244 2018 7 7 58306 0.1697 0.4245 0.07254 2018 7 8 58307 0.1710 0.4236 0.07265 2018 7 9 58308 0.1722 0.4226 0.07276 2018 7 10 58309 0.1734 0.4217 0.07292 2018 7 11 58310 0.1746 0.4207 0.07320 2018 7 12 58311 0.1758 0.4197 0.07358 2018 7 13 58312 0.1770 0.4187 0.07399 2018 7 14 58313 0.1782 0.4177 0.07431 2018 7 15 58314 0.1793 0.4166 0.07449 2018 7 16 58315 0.1804 0.4155 0.07449 2018 7 17 58316 0.1814 0.4144 0.07434 2018 7 18 58317 0.1825 0.4133 0.07411 2018 7 19 58318 0.1836 0.4122 0.07387 2018 7 20 58319 0.1846 0.4111 0.07367 2018 7 21 58320 0.1856 0.4100 0.07359 2018 7 22 58321 0.1866 0.4089 0.07363 2018 7 23 58322 0.1875 0.4078 0.07379 2018 7 24 58323 0.1884 0.4066 0.07406 2018 7 25 58324 0.1892 0.4055 0.07441 2018 7 26 58325 0.1901 0.4044 0.07481 2018 7 27 58326 0.1908 0.4032 0.07521 2018 7 28 58327 0.1916 0.4020 0.07558 2018 7 29 58328 0.1924 0.4008 0.07587 2018 7 30 58329 0.1931 0.3996 0.07606 2018 7 31 58330 0.1938 0.3984 0.07614 2018 8 1 58331 0.1944 0.3972 0.07612 2018 8 2 58332 0.1951 0.3959 0.07600 2018 8 3 58333 0.1957 0.3947 0.07582 2018 8 4 58334 0.1963 0.3934 0.07561 2018 8 5 58335 0.1969 0.3922 0.07541 2018 8 6 58336 0.1974 0.3909 0.07527 2018 8 7 58337 0.1979 0.3896 0.07520 2018 8 8 58338 0.1984 0.3883 0.07521 2018 8 9 58339 0.1988 0.3870 0.07526 2018 8 10 58340 0.1993 0.3857 0.07526 2018 8 11 58341 0.1997 0.3844 0.07515 2018 8 12 58342 0.2001 0.3831 0.07487 2018 8 13 58343 0.2004 0.3818 0.07442 2018 8 14 58344 0.2007 0.3804 0.07388 2018 8 15 58345 0.2010 0.3791 0.07331 2018 8 16 58346 0.2013 0.3778 0.07281 2018 8 17 58347 0.2015 0.3764 0.07245 2018 8 18 58348 0.2018 0.3751 0.07225 2018 8 19 58349 0.2019 0.3737 0.07222 2018 8 20 58350 0.2021 0.3724 0.07233 2018 8 21 58351 0.2022 0.3710 0.07255 2018 8 22 58352 0.2023 0.3697 0.07283 2018 8 23 58353 0.2024 0.3683 0.07313 2018 8 24 58354 0.2025 0.3670 0.07339 2018 8 25 58355 0.2025 0.3656 0.07358 2018 8 26 58356 0.2025 0.3642 0.07366 2018 8 27 58357 0.2024 0.3629 0.07361 2018 8 28 58358 0.2024 0.3615 0.07343 2018 8 29 58359 0.2023 0.3601 0.07314 2018 8 30 58360 0.2022 0.3588 0.07277 2018 8 31 58361 0.2020 0.3574 0.07236 2018 9 1 58362 0.2019 0.3561 0.07196 2018 9 2 58363 0.2017 0.3547 0.07162 2018 9 3 58364 0.2014 0.3533 0.07134 2018 9 4 58365 0.2012 0.3520 0.07115 2018 9 5 58366 0.2009 0.3506 0.07099 2018 9 6 58367 0.2006 0.3493 0.07083 2018 9 7 58368 0.2003 0.3480 0.07057 2018 9 8 58369 0.1999 0.3466 0.07015 2018 9 9 58370 0.1995 0.3453 0.06953 2018 9 10 58371 0.1991 0.3440 0.06875 2018 9 11 58372 0.1987 0.3426 0.06788 2018 9 12 58373 0.1982 0.3413 0.06701 2018 9 13 58374 0.1977 0.3400 0.06622 2018 9 14 58375 0.1972 0.3387 0.06558 2018 9 15 58376 0.1967 0.3374 0.06509 2018 9 16 58377 0.1961 0.3361 0.06475 2018 9 17 58378 0.1955 0.3348 0.06452 2018 9 18 58379 0.1949 0.3336 0.06435 2018 9 19 58380 0.1943 0.3323 0.06419 2018 9 20 58381 0.1936 0.3310 0.06400 2018 9 21 58382 0.1929 0.3298 0.06372 2018 9 22 58383 0.1922 0.3286 0.06331 2018 9 23 58384 0.1915 0.3273 0.06277 2018 9 24 58385 0.1907 0.3261 0.06208 2018 9 25 58386 0.1899 0.3249 0.06125 2018 9 26 58387 0.1891 0.3237 0.06033 2018 9 27 58388 0.1883 0.3225 0.05936 2018 9 28 58389 0.1874 0.3214 0.05840 2018 9 29 58390 0.1865 0.3202 0.05751 2018 9 30 58391 0.1856 0.3191 0.05671 2018 10 1 58392 0.1847 0.3179 0.05601 2018 10 2 58393 0.1837 0.3168 0.05539 2018 10 3 58394 0.1828 0.3157 0.05478 2018 10 4 58395 0.1818 0.3146 0.05411 2018 10 5 58396 0.1808 0.3136 0.05332 2018 10 6 58397 0.1797 0.3125 0.05234 2018 10 7 58398 0.1787 0.3115 0.05118 2018 10 8 58399 0.1776 0.3104 0.04989 2018 10 9 58400 0.1765 0.3094 0.04853 2018 10 10 58401 0.1754 0.3084 0.04722 2018 10 11 58402 0.1742 0.3075 0.04603 2018 10 12 58403 0.1731 0.3065 0.04500 2018 10 13 58404 0.1719 0.3056 0.04413 2018 10 14 58405 0.1707 0.3046 0.04342 2018 10 15 58406 0.1695 0.3037 0.04280 2018 10 16 58407 0.1683 0.3028 0.04224 2018 10 17 58408 0.1670 0.3020 0.04168 2018 10 18 58409 0.1658 0.3011 0.04107 2018 10 19 58410 0.1645 0.3003 0.04037 2018 10 20 58411 0.1632 0.2994 0.03954 2018 10 21 58412 0.1619 0.2986 0.03858 2018 10 22 58413 0.1606 0.2979 0.03749 2018 10 23 58414 0.1592 0.2971 0.03628 2018 10 24 58415 0.1579 0.2964 0.03500 2018 10 25 58416 0.1565 0.2957 0.03372 2018 10 26 58417 0.1551 0.2950 0.03248 2018 10 27 58418 0.1537 0.2943 0.03135 2018 10 28 58419 0.1523 0.2936 0.03034 2018 10 29 58420 0.1509 0.2930 0.02943 2018 10 30 58421 0.1494 0.2924 0.02857 2018 10 31 58422 0.1480 0.2918 0.02769 2018 11 1 58423 0.1465 0.2912 0.02672 2018 11 2 58424 0.1451 0.2907 0.02561 2018 11 3 58425 0.1436 0.2902 0.02434 2018 11 4 58426 0.1421 0.2897 0.02294 2018 11 5 58427 0.1406 0.2892 0.02146 2018 11 6 58428 0.1391 0.2887 0.02000 2018 11 7 58429 0.1376 0.2883 0.01863 2018 11 8 58430 0.1360 0.2879 0.01740 2018 11 9 58431 0.1345 0.2875 0.01636 2018 11 10 58432 0.1330 0.2872 0.01548 2018 11 11 58433 0.1314 0.2868 0.01474 2018 11 12 58434 0.1299 0.2865 0.01410 2018 11 13 58435 0.1283 0.2862 0.01350 2018 11 14 58436 0.1267 0.2860 0.01288 2018 11 15 58437 0.1252 0.2857 0.01220 2018 11 16 58438 0.1236 0.2855 0.01142 2018 11 17 58439 0.1220 0.2853 0.01053 2018 11 18 58440 0.1204 0.2851 0.00951 2018 11 19 58441 0.1188 0.2850 0.00839 2018 11 20 58442 0.1172 0.2849 0.00718 2018 11 21 58443 0.1156 0.2848 0.00594 2018 11 22 58444 0.1140 0.2847 0.00473 2018 11 23 58445 0.1124 0.2847 0.00361 2018 11 24 58446 0.1108 0.2846 0.00261 2018 11 25 58447 0.1092 0.2846 0.00175 2018 11 26 58448 0.1077 0.2847 0.00097 2018 11 27 58449 0.1061 0.2847 0.00021 2018 11 28 58450 0.1045 0.2848 -0.00061 2018 11 29 58451 0.1029 0.2849 -0.00154 2018 11 30 58452 0.1013 0.2850 -0.00261 2018 12 1 58453 0.0997 0.2852 -0.00380 2018 12 2 58454 0.0981 0.2854 -0.00506 2018 12 3 58455 0.0965 0.2856 -0.00631 2018 12 4 58456 0.0949 0.2858 -0.00750 2018 12 5 58457 0.0934 0.2860 -0.00855 2018 12 6 58458 0.0918 0.2863 -0.00943 2018 12 7 58459 0.0902 0.2866 -0.01015 2018 12 8 58460 0.0887 0.2869 -0.01073 2018 12 9 58461 0.0871 0.2873 -0.01119 2018 12 10 58462 0.0856 0.2877 -0.01160 2018 12 11 58463 0.0840 0.2881 -0.01199 2018 12 12 58464 0.0825 0.2885 -0.01243 2018 12 13 58465 0.0810 0.2889 -0.01295 2018 12 14 58466 0.0795 0.2894 -0.01357 2018 12 15 58467 0.0780 0.2899 -0.01430 2018 12 16 58468 0.0765 0.2904 -0.01514 2018 12 17 58469 0.0750 0.2909 -0.01607 2018 12 18 58470 0.0735 0.2915 -0.01704 2018 12 19 58471 0.0720 0.2921 -0.01802 2018 12 20 58472 0.0706 0.2927 -0.01895 2018 12 21 58473 0.0692 0.2933 -0.01976 2018 12 22 58474 0.0677 0.2940 -0.02045 2018 12 23 58475 0.0663 0.2947 -0.02103 2018 12 24 58476 0.0649 0.2954 -0.02156 2018 12 25 58477 0.0635 0.2961 -0.02213 2018 12 26 58478 0.0621 0.2968 -0.02280 2018 12 27 58479 0.0608 0.2976 -0.02360 2018 12 28 58480 0.0594 0.2984 -0.02451 2018 12 29 58481 0.0581 0.2992 -0.02549 2018 12 30 58482 0.0568 0.3000 -0.02644 2018 12 31 58483 0.0555 0.3009 -0.02731 2019 1 1 58484 0.0542 0.3017 -0.02803 2019 1 2 58485 0.0530 0.3026 -0.02859 2019 1 3 58486 0.0517 0.3035 -0.02898 2019 1 4 58487 0.0505 0.3045 -0.02924 2019 1 5 58488 0.0493 0.3054 -0.02940 2019 1 6 58489 0.0481 0.3064 -0.02951 2019 1 7 58490 0.0469 0.3074 -0.02963 2019 1 8 58491 0.0458 0.3084 -0.02978 2019 1 9 58492 0.0446 0.3094 -0.03000 2019 1 10 58493 0.0435 0.3105 -0.03030 2019 1 11 58494 0.0424 0.3115 -0.03070 2019 1 12 58495 0.0413 0.3126 -0.03120 2019 1 13 58496 0.0403 0.3137 -0.03180 2019 1 14 58497 0.0393 0.3148 -0.03250 2019 1 15 58498 0.0382 0.3160 -0.03326 2019 1 16 58499 0.0373 0.3171 -0.03406 2019 1 17 58500 0.0363 0.3183 -0.03485 2019 1 18 58501 0.0354 0.3195 -0.03559 2019 1 19 58502 0.0344 0.3207 -0.03627 2019 1 20 58503 0.0335 0.3219 -0.03694 2019 1 21 58504 0.0327 0.3231 -0.03766 2019 1 22 58505 0.0318 0.3244 -0.03852 2019 1 23 58506 0.0310 0.3256 -0.03958 2019 1 24 58507 0.0302 0.3269 -0.04083 2019 1 25 58508 0.0294 0.3282 -0.04223 2019 1 26 58509 0.0287 0.3295 -0.04370 2019 1 27 58510 0.0279 0.3308 -0.04513 2019 1 28 58511 0.0272 0.3321 -0.04648 2019 1 29 58512 0.0266 0.3334 -0.04770 2019 1 30 58513 0.0259 0.3348 -0.04878 2019 1 31 58514 0.0253 0.3361 -0.04972 2019 2 1 58515 0.0247 0.3375 -0.05054 2019 2 2 58516 0.0241 0.3389 -0.05129 2019 2 3 58517 0.0236 0.3402 -0.05202 2019 2 4 58518 0.0230 0.3416 -0.05275 2019 2 5 58519 0.0226 0.3430 -0.05351 2019 2 6 58520 0.0221 0.3445 -0.05433 2019 2 7 58521 0.0217 0.3459 -0.05525 2019 2 8 58522 0.0212 0.3473 -0.05631 2019 2 9 58523 0.0209 0.3487 -0.05741 2019 2 10 58524 0.0205 0.3502 -0.05857 2019 2 11 58525 0.0202 0.3516 -0.05976 2019 2 12 58526 0.0199 0.3531 -0.06087 2019 2 13 58527 0.0196 0.3545 -0.06187 2019 2 14 58528 0.0194 0.3560 -0.06277 2019 2 15 58529 0.0192 0.3575 -0.06364 2019 2 16 58530 0.0190 0.3590 -0.06449 2019 2 17 58531 0.0188 0.3604 -0.06534 2019 2 18 58532 0.0187 0.3619 -0.06626 2019 2 19 58533 0.0186 0.3634 -0.06736 2019 2 20 58534 0.0185 0.3649 -0.06876 2019 2 21 58535 0.0185 0.3664 -0.07040 2019 2 22 58536 0.0185 0.3679 -0.07213 2019 2 23 58537 0.0185 0.3694 -0.07386 2019 2 24 58538 0.0185 0.3709 -0.07552 2019 2 25 58539 0.0186 0.3723 -0.07704 2019 2 26 58540 0.0187 0.3738 -0.07837 2019 2 27 58541 0.0188 0.3753 -0.07949 2019 2 28 58542 0.0190 0.3768 -0.08042 2019 3 1 58543 0.0192 0.3783 -0.08122 2019 3 2 58544 0.0194 0.3798 -0.08196 2019 3 3 58545 0.0196 0.3813 -0.08271 2019 3 4 58546 0.0199 0.3828 -0.08346 2019 3 5 58547 0.0202 0.3843 -0.08432 2019 3 6 58548 0.0205 0.3857 -0.08531 2019 3 7 58549 0.0209 0.3872 -0.08643 2019 3 8 58550 0.0213 0.3887 -0.08766 2019 3 9 58551 0.0217 0.3901 -0.08894 2019 3 10 58552 0.0221 0.3916 -0.09024 2019 3 11 58553 0.0226 0.3930 -0.09155 2019 3 12 58554 0.0231 0.3945 -0.09278 2019 3 13 58555 0.0236 0.3959 -0.09401 2019 3 14 58556 0.0242 0.3974 -0.09516 2019 3 15 58557 0.0248 0.3988 -0.09625 2019 3 16 58558 0.0254 0.4002 -0.09735 2019 3 17 58559 0.0260 0.4016 -0.09852 2019 3 18 58560 0.0267 0.4030 -0.09983 2019 3 19 58561 0.0274 0.4044 -0.10138 2019 3 20 58562 0.0281 0.4058 -0.10321 2019 3 21 58563 0.0288 0.4071 -0.10514 2019 3 22 58564 0.0296 0.4085 -0.10713 2019 3 23 58565 0.0304 0.4099 -0.10906 2019 3 24 58566 0.0312 0.4112 -0.11080 2019 3 25 58567 0.0320 0.4125 -0.11229 2019 3 26 58568 0.0329 0.4138 -0.11352 2019 3 27 58569 0.0338 0.4151 -0.11452 2019 3 28 58570 0.0347 0.4164 -0.11535 2019 3 29 58571 0.0357 0.4177 -0.11612 2019 3 30 58572 0.0367 0.4189 -0.11682 2019 3 31 58573 0.0377 0.4202 -0.11755 2019 4 1 58574 0.0387 0.4214 -0.11831 2019 4 2 58575 0.0397 0.4226 -0.11919 2019 4 3 58576 0.0408 0.4238 -0.12020 2019 4 4 58577 0.0419 0.4250 -0.12132 2019 4 5 58578 0.0430 0.4262 -0.12249 2019 4 6 58579 0.0441 0.4273 -0.12370 2019 4 7 58580 0.0453 0.4285 -0.12491 2019 4 8 58581 0.0464 0.4296 -0.12603 2019 4 9 58582 0.0476 0.4307 -0.12710 2019 4 10 58583 0.0489 0.4318 -0.12811 2019 4 11 58584 0.0501 0.4328 -0.12916 2019 4 12 58585 0.0514 0.4339 -0.13020 2019 4 13 58586 0.0526 0.4349 -0.13128 2019 4 14 58587 0.0539 0.4359 -0.13238 2019 4 15 58588 0.0553 0.4369 -0.13362 2019 4 16 58589 0.0566 0.4379 -0.13502 2019 4 17 58590 0.0580 0.4388 -0.13665 2019 4 18 58591 0.0593 0.4397 -0.13843 2019 4 19 58592 0.0607 0.4406 -0.14023 2019 4 20 58593 0.0621 0.4415 -0.14195 2019 4 21 58594 0.0636 0.4424 -0.14347 2019 4 22 58595 0.0650 0.4432 -0.14482 2019 4 23 58596 0.0665 0.4440 -0.14601 2019 4 24 58597 0.0679 0.4448 -0.14700 2019 4 25 58598 0.0694 0.4456 -0.14785 2019 4 26 58599 0.0709 0.4464 -0.14857 2019 4 27 58600 0.0724 0.4471 -0.14933 2019 4 28 58601 0.0740 0.4478 -0.15014 2019 4 29 58602 0.0755 0.4485 -0.15104 2019 4 30 58603 0.0771 0.4491 -0.15205 2019 5 1 58604 0.0787 0.4498 -0.15317 2019 5 2 58605 0.0802 0.4504 -0.15438 2019 5 3 58606 0.0818 0.4510 -0.15562 2019 5 4 58607 0.0834 0.4515 -0.15686 2019 5 5 58608 0.0850 0.4521 -0.15805 2019 5 6 58609 0.0867 0.4526 -0.15912 2019 5 7 58610 0.0883 0.4531 -0.16002 2019 5 8 58611 0.0900 0.4535 -0.16078 2019 5 9 58612 0.0916 0.4540 -0.16150 2019 5 10 58613 0.0933 0.4544 -0.16223 2019 5 11 58614 0.0949 0.4548 -0.16300 2019 5 12 58615 0.0966 0.4551 -0.16383 2019 5 13 58616 0.0983 0.4555 -0.16484 2019 5 14 58617 0.1000 0.4558 -0.16599 2019 5 15 58618 0.1017 0.4560 -0.16721 2019 5 16 58619 0.1034 0.4563 -0.16849 2019 5 17 58620 0.1051 0.4565 -0.16973 2019 5 18 58621 0.1068 0.4567 -0.17086 2019 5 19 58622 0.1085 0.4569 -0.17170 2019 5 20 58623 0.1102 0.4571 -0.17238 2019 5 21 58624 0.1119 0.4572 -0.17294 2019 5 22 58625 0.1137 0.4573 -0.17335 2019 5 23 58626 0.1154 0.4573 -0.17366 2019 5 24 58627 0.1171 0.4574 -0.17402 2019 5 25 58628 0.1188 0.4574 -0.17438 2019 5 26 58629 0.1206 0.4574 -0.17485 2019 5 27 58630 0.1223 0.4574 -0.17545 2019 5 28 58631 0.1240 0.4573 -0.17616 2019 5 29 58632 0.1257 0.4572 -0.17700 2019 5 30 58633 0.1274 0.4571 -0.17792 2019 5 31 58634 0.1292 0.4569 -0.17894 2019 6 1 58635 0.1309 0.4568 -0.17996 2019 6 2 58636 0.1326 0.4566 -0.18087 2019 6 3 58637 0.1343 0.4563 -0.18167 2019 6 4 58638 0.1360 0.4561 -0.18236 2019 6 5 58639 0.1377 0.4558 -0.18295 2019 6 6 58640 0.1394 0.4555 -0.18358 2019 6 7 58641 0.1411 0.4552 -0.18419 2019 6 8 58642 0.1427 0.4548 -0.18489 2019 6 9 58643 0.1444 0.4544 -0.18575 2019 6 10 58644 0.1461 0.4540 -0.18678 2019 6 11 58645 0.1477 0.4536 -0.18794 2019 6 12 58646 0.1494 0.4531 -0.18919 2019 6 13 58647 0.1510 0.4526 -0.19041 2019 6 14 58648 0.1526 0.4521 -0.19148 2019 6 15 58649 0.1543 0.4515 -0.19238 2019 6 16 58650 0.1559 0.4510 -0.19303 2019 6 17 58651 0.1575 0.4504 -0.19342 2019 6 18 58652 0.1590 0.4497 -0.19362 2019 6 19 58653 0.1606 0.4491 -0.19372 2019 6 20 58654 0.1622 0.4484 -0.19382 2019 6 21 58655 0.1637 0.4477 -0.19396 2019 6 22 58656 0.1653 0.4470 -0.19417 2019 6 23 58657 0.1668 0.4463 -0.19438 2019 6 24 58658 0.1683 0.4455 -0.19471 2019 6 25 58659 0.1698 0.4447 -0.19509 2019 6 26 58660 0.1712 0.4439 -0.19555 2019 6 27 58661 0.1727 0.4431 -0.19613 2019 6 28 58662 0.1741 0.4422 -0.19681 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) 58275 -104.33 0.34 -12.18 0.13 58276 -104.25 0.34 -12.06 0.13 58277 -104.65 0.34 -11.99 0.13 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58275 -0.132 0.137 -0.105 0.132 58276 -0.132 0.137 -0.112 0.132 58277 -0.131 0.137 -0.119 0.132 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).