********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 4 October 2018 Vol. XXXI No. 040 ______________________________________________________________________ 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 = +0.0 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 9 28 58389 0.21052 .00009 0.33475 .00009 0.050952 0.000020 18 9 29 58390 0.21055 .00009 0.33356 .00009 0.050033 0.000016 18 9 30 58391 0.21058 .00009 0.33222 .00009 0.049193 0.000011 18 10 1 58392 0.21061 .00009 0.33088 .00009 0.048451 0.000008 18 10 2 58393 0.21059 .00009 0.32974 .00009 0.047766 0.000008 18 10 3 58394 0.21031 .00009 0.32863 .00009 0.047066 0.000008 18 10 4 58395 0.20974 .00009 0.32759 .00009 0.046295 0.000055 IERS Final Values MJD x y UT1-UTC " " s 18 8 2 58332 0.1989 0.4043 0.06949 18 8 3 58333 0.1994 0.4031 0.06920 18 8 4 58334 0.2000 0.4021 0.06890 18 8 5 58335 0.2002 0.4010 0.06863 18 8 6 58336 0.2004 0.3998 0.06846 18 8 7 58337 0.2006 0.3986 0.06832 18 8 8 58338 0.2008 0.3974 0.06837 18 8 9 58339 0.2007 0.3962 0.06830 18 8 10 58340 0.2012 0.3947 0.06823 18 8 11 58341 0.2020 0.3930 0.06795 18 8 12 58342 0.2032 0.3915 0.06756 18 8 13 58343 0.2039 0.3901 0.06701 18 8 14 58344 0.2042 0.3889 0.06632 18 8 15 58345 0.2042 0.3876 0.06586 18 8 16 58346 0.2045 0.3862 0.06529 18 8 17 58347 0.2047 0.3849 0.06475 18 8 18 58348 0.2052 0.3833 0.06446 18 8 19 58349 0.2057 0.3819 0.06438 18 8 20 58350 0.2062 0.3810 0.06441 18 8 21 58351 0.2072 0.3802 0.06452 18 8 22 58352 0.2080 0.3796 0.06467 18 8 23 58353 0.2086 0.3785 0.06483 18 8 24 58354 0.2091 0.3772 0.06496 18 8 25 58355 0.2097 0.3760 0.06505 18 8 26 58356 0.2104 0.3750 0.06505 18 8 27 58357 0.2110 0.3739 0.06496 18 8 28 58358 0.2112 0.3728 0.06476 18 8 29 58359 0.2111 0.3717 0.06445 18 8 30 58360 0.2116 0.3705 0.06407 18 8 31 58361 0.2118 0.3694 0.06365 18 9 1 58362 0.2117 0.3679 0.06326 _______________________________________________________________________ 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 = 0.1247 + 0.0684 cos A - 0.0733 sin A + 0.0135 cos C + 0.0281 sin C y = 0.3547 - 0.0633 cos A - 0.0669 sin A + 0.0281 cos C - 0.0135 sin C UT1-UTC = 0.0073 - 0.00066 (MJD - 58403) - (UT2-UT1) where A = 2*pi*(MJD-58395)/365.25 and C = 2*pi*(MJD-58395)/435. TAI-UTC(MJD 58396) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58395)**0.80 S t = 0.00025 (MJD-58395)**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 10 5 58396 0.2091 0.3265 0.04542 2018 10 6 58397 0.2083 0.3255 0.04434 2018 10 7 58398 0.2075 0.3243 0.04308 2018 10 8 58399 0.2067 0.3231 0.04168 2018 10 9 58400 0.2059 0.3219 0.04026 2018 10 10 58401 0.2052 0.3207 0.03888 2018 10 11 58402 0.2044 0.3194 0.03763 2018 10 12 58403 0.2035 0.3182 0.03653 2018 10 13 58404 0.2026 0.3170 0.03561 2018 10 14 58405 0.2017 0.3159 0.03484 2018 10 15 58406 0.2007 0.3147 0.03417 2018 10 16 58407 0.1998 0.3135 0.03355 2018 10 17 58408 0.1988 0.3123 0.03294 2018 10 18 58409 0.1978 0.3112 0.03228 2018 10 19 58410 0.1968 0.3100 0.03154 2018 10 20 58411 0.1958 0.3089 0.03070 2018 10 21 58412 0.1947 0.3078 0.02974 2018 10 22 58413 0.1937 0.3067 0.02866 2018 10 23 58414 0.1926 0.3056 0.02750 2018 10 24 58415 0.1915 0.3046 0.02630 2018 10 25 58416 0.1904 0.3036 0.02510 2018 10 26 58417 0.1893 0.3026 0.02397 2018 10 27 58418 0.1881 0.3017 0.02294 2018 10 28 58419 0.1869 0.3007 0.02203 2018 10 29 58420 0.1856 0.2998 0.02121 2018 10 30 58421 0.1844 0.2989 0.02045 2018 10 31 58422 0.1831 0.2980 0.01968 2018 11 1 58423 0.1818 0.2971 0.01882 2018 11 2 58424 0.1805 0.2962 0.01783 2018 11 3 58425 0.1792 0.2954 0.01667 2018 11 4 58426 0.1779 0.2946 0.01537 2018 11 5 58427 0.1765 0.2938 0.01399 2018 11 6 58428 0.1751 0.2930 0.01262 2018 11 7 58429 0.1737 0.2923 0.01131 2018 11 8 58430 0.1723 0.2915 0.01015 2018 11 9 58431 0.1709 0.2908 0.00915 2018 11 10 58432 0.1694 0.2901 0.00832 2018 11 11 58433 0.1680 0.2895 0.00761 2018 11 12 58434 0.1665 0.2888 0.00697 2018 11 13 58435 0.1650 0.2882 0.00637 2018 11 14 58436 0.1636 0.2876 0.00573 2018 11 15 58437 0.1621 0.2870 0.00503 2018 11 16 58438 0.1605 0.2865 0.00423 2018 11 17 58439 0.1590 0.2859 0.00329 2018 11 18 58440 0.1575 0.2854 0.00222 2018 11 19 58441 0.1559 0.2850 0.00103 2018 11 20 58442 0.1544 0.2845 -0.00026 2018 11 21 58443 0.1528 0.2841 -0.00160 2018 11 22 58444 0.1513 0.2837 -0.00292 2018 11 23 58445 0.1497 0.2833 -0.00416 2018 11 24 58446 0.1481 0.2829 -0.00529 2018 11 25 58447 0.1465 0.2826 -0.00629 2018 11 26 58448 0.1449 0.2823 -0.00721 2018 11 27 58449 0.1433 0.2820 -0.00811 2018 11 28 58450 0.1417 0.2818 -0.00908 2018 11 29 58451 0.1401 0.2815 -0.01016 2018 11 30 58452 0.1384 0.2813 -0.01137 2018 12 1 58453 0.1368 0.2811 -0.01269 2018 12 2 58454 0.1352 0.2810 -0.01407 2018 12 3 58455 0.1336 0.2809 -0.01543 2018 12 4 58456 0.1319 0.2808 -0.01670 2018 12 5 58457 0.1303 0.2807 -0.01784 2018 12 6 58458 0.1286 0.2806 -0.01880 2018 12 7 58459 0.1270 0.2806 -0.01958 2018 12 8 58460 0.1254 0.2806 -0.02021 2018 12 9 58461 0.1237 0.2806 -0.02073 2018 12 10 58462 0.1221 0.2807 -0.02120 2018 12 11 58463 0.1204 0.2808 -0.02165 2018 12 12 58464 0.1188 0.2809 -0.02216 2018 12 13 58465 0.1172 0.2810 -0.02275 2018 12 14 58466 0.1155 0.2812 -0.02345 2018 12 15 58467 0.1139 0.2813 -0.02427 2018 12 16 58468 0.1123 0.2815 -0.02521 2018 12 17 58469 0.1107 0.2818 -0.02625 2018 12 18 58470 0.1091 0.2820 -0.02735 2018 12 19 58471 0.1075 0.2823 -0.02845 2018 12 20 58472 0.1058 0.2826 -0.02952 2018 12 21 58473 0.1043 0.2830 -0.03048 2018 12 22 58474 0.1027 0.2833 -0.03133 2018 12 23 58475 0.1011 0.2837 -0.03208 2018 12 24 58476 0.0995 0.2841 -0.03279 2018 12 25 58477 0.0979 0.2845 -0.03354 2018 12 26 58478 0.0964 0.2850 -0.03440 2018 12 27 58479 0.0948 0.2855 -0.03541 2018 12 28 58480 0.0933 0.2860 -0.03654 2018 12 29 58481 0.0917 0.2865 -0.03774 2018 12 30 58482 0.0902 0.2871 -0.03895 2018 12 31 58483 0.0887 0.2876 -0.04008 2019 1 1 58484 0.0872 0.2882 -0.04109 2019 1 2 58485 0.0857 0.2889 -0.04194 2019 1 3 58486 0.0843 0.2895 -0.04262 2019 1 4 58487 0.0828 0.2902 -0.04317 2019 1 5 58488 0.0813 0.2909 -0.04360 2019 1 6 58489 0.0799 0.2916 -0.04398 2019 1 7 58490 0.0785 0.2923 -0.04433 2019 1 8 58491 0.0771 0.2931 -0.04471 2019 1 9 58492 0.0757 0.2939 -0.04516 2019 1 10 58493 0.0743 0.2947 -0.04572 2019 1 11 58494 0.0730 0.2955 -0.04638 2019 1 12 58495 0.0716 0.2964 -0.04714 2019 1 13 58496 0.0703 0.2972 -0.04799 2019 1 14 58497 0.0690 0.2981 -0.04890 2019 1 15 58498 0.0677 0.2990 -0.04984 2019 1 16 58499 0.0664 0.3000 -0.05075 2019 1 17 58500 0.0652 0.3009 -0.05159 2019 1 18 58501 0.0639 0.3019 -0.05234 2019 1 19 58502 0.0627 0.3029 -0.05299 2019 1 20 58503 0.0615 0.3039 -0.05359 2019 1 21 58504 0.0603 0.3049 -0.05424 2019 1 22 58505 0.0592 0.3059 -0.05501 2019 1 23 58506 0.0581 0.3070 -0.05594 2019 1 24 58507 0.0569 0.3081 -0.05706 2019 1 25 58508 0.0558 0.3092 -0.05829 2019 1 26 58509 0.0548 0.3103 -0.05956 2019 1 27 58510 0.0537 0.3114 -0.06077 2019 1 28 58511 0.0527 0.3126 -0.06184 2019 1 29 58512 0.0517 0.3137 -0.06275 2019 1 30 58513 0.0507 0.3149 -0.06349 2019 1 31 58514 0.0497 0.3161 -0.06407 2019 2 1 58515 0.0488 0.3173 -0.06454 2019 2 2 58516 0.0479 0.3186 -0.06494 2019 2 3 58517 0.0470 0.3198 -0.06533 2019 2 4 58518 0.0461 0.3210 -0.06574 2019 2 5 58519 0.0453 0.3223 -0.06623 2019 2 6 58520 0.0445 0.3236 -0.06683 2019 2 7 58521 0.0437 0.3249 -0.06754 2019 2 8 58522 0.0429 0.3262 -0.06838 2019 2 9 58523 0.0422 0.3275 -0.06931 2019 2 10 58524 0.0415 0.3288 -0.07032 2019 2 11 58525 0.0408 0.3302 -0.07136 2019 2 12 58526 0.0401 0.3315 -0.07239 2019 2 13 58527 0.0395 0.3329 -0.07337 2019 2 14 58528 0.0389 0.3343 -0.07428 2019 2 15 58529 0.0383 0.3357 -0.07510 2019 2 16 58530 0.0378 0.3370 -0.07587 2019 2 17 58531 0.0373 0.3384 -0.07666 2019 2 18 58532 0.0368 0.3398 -0.07755 2019 2 19 58533 0.0363 0.3413 -0.07861 2019 2 20 58534 0.0358 0.3427 -0.07989 2019 2 21 58535 0.0354 0.3441 -0.08136 2019 2 22 58536 0.0350 0.3456 -0.08293 2019 2 23 58537 0.0347 0.3470 -0.08449 2019 2 24 58538 0.0344 0.3484 -0.08595 2019 2 25 58539 0.0341 0.3499 -0.08722 2019 2 26 58540 0.0338 0.3514 -0.08831 2019 2 27 58541 0.0335 0.3528 -0.08922 2019 2 28 58542 0.0333 0.3543 -0.08999 2019 3 1 58543 0.0331 0.3558 -0.09068 2019 3 2 58544 0.0330 0.3572 -0.09134 2019 3 3 58545 0.0329 0.3587 -0.09202 2019 3 4 58546 0.0328 0.3602 -0.09276 2019 3 5 58547 0.0327 0.3617 -0.09361 2019 3 6 58548 0.0326 0.3631 -0.09457 2019 3 7 58549 0.0326 0.3646 -0.09566 2019 3 8 58550 0.0326 0.3661 -0.09687 2019 3 9 58551 0.0327 0.3676 -0.09815 2019 3 10 58552 0.0328 0.3691 -0.09946 2019 3 11 58553 0.0329 0.3706 -0.10077 2019 3 12 58554 0.0330 0.3720 -0.10202 2019 3 13 58555 0.0332 0.3735 -0.10319 2019 3 14 58556 0.0333 0.3750 -0.10427 2019 3 15 58557 0.0336 0.3765 -0.10528 2019 3 16 58558 0.0338 0.3779 -0.10627 2019 3 17 58559 0.0341 0.3794 -0.10732 2019 3 18 58560 0.0344 0.3808 -0.10852 2019 3 19 58561 0.0347 0.3823 -0.10994 2019 3 20 58562 0.0351 0.3838 -0.11157 2019 3 21 58563 0.0355 0.3852 -0.11337 2019 3 22 58564 0.0359 0.3866 -0.11523 2019 3 23 58565 0.0363 0.3881 -0.11703 2019 3 24 58566 0.0368 0.3895 -0.11868 2019 3 25 58567 0.0373 0.3909 -0.12012 2019 3 26 58568 0.0378 0.3923 -0.12135 2019 3 27 58569 0.0384 0.3937 -0.12240 2019 3 28 58570 0.0390 0.3951 -0.12333 2019 3 29 58571 0.0396 0.3965 -0.12420 2019 3 30 58572 0.0402 0.3979 -0.12506 2019 3 31 58573 0.0409 0.3992 -0.12596 2019 4 1 58574 0.0416 0.4006 -0.12695 2019 4 2 58575 0.0423 0.4019 -0.12805 2019 4 3 58576 0.0431 0.4033 -0.12928 2019 4 4 58577 0.0438 0.4046 -0.13062 2019 4 5 58578 0.0446 0.4059 -0.13205 2019 4 6 58579 0.0454 0.4072 -0.13353 2019 4 7 58580 0.0463 0.4085 -0.13501 2019 4 8 58581 0.0472 0.4098 -0.13644 2019 4 9 58582 0.0481 0.4110 -0.13778 2019 4 10 58583 0.0490 0.4123 -0.13903 2019 4 11 58584 0.0499 0.4135 -0.14019 2019 4 12 58585 0.0509 0.4147 -0.14131 2019 4 13 58586 0.0519 0.4159 -0.14245 2019 4 14 58587 0.0529 0.4171 -0.14367 2019 4 15 58588 0.0540 0.4183 -0.14504 2019 4 16 58589 0.0550 0.4194 -0.14658 2019 4 17 58590 0.0561 0.4206 -0.14827 2019 4 18 58591 0.0572 0.4217 -0.15002 2019 4 19 58592 0.0583 0.4228 -0.15173 2019 4 20 58593 0.0595 0.4239 -0.15328 2019 4 21 58594 0.0607 0.4250 -0.15460 2019 4 22 58595 0.0619 0.4260 -0.15565 2019 4 23 58596 0.0631 0.4270 -0.15644 2019 4 24 58597 0.0643 0.4281 -0.15704 2019 4 25 58598 0.0656 0.4290 -0.15752 2019 4 26 58599 0.0668 0.4300 -0.15794 2019 4 27 58600 0.0681 0.4310 -0.15837 2019 4 28 58601 0.0694 0.4319 -0.15885 2019 4 29 58602 0.0708 0.4328 -0.15942 2019 4 30 58603 0.0721 0.4337 -0.16010 2019 5 1 58604 0.0735 0.4346 -0.16086 2019 5 2 58605 0.0748 0.4354 -0.16171 2019 5 3 58606 0.0762 0.4363 -0.16261 2019 5 4 58607 0.0777 0.4371 -0.16350 2019 5 5 58608 0.0791 0.4379 -0.16433 2019 5 6 58609 0.0805 0.4386 -0.16505 2019 5 7 58610 0.0820 0.4394 -0.16562 2019 5 8 58611 0.0835 0.4401 -0.16604 2019 5 9 58612 0.0849 0.4408 -0.16637 2019 5 10 58613 0.0864 0.4415 -0.16673 2019 5 11 58614 0.0880 0.4421 -0.16720 2019 5 12 58615 0.0895 0.4428 -0.16784 2019 5 13 58616 0.0910 0.4434 -0.16869 2019 5 14 58617 0.0926 0.4439 -0.16971 2019 5 15 58618 0.0941 0.4445 -0.17083 2019 5 16 58619 0.0957 0.4450 -0.17196 2019 5 17 58620 0.0973 0.4455 -0.17300 2019 5 18 58621 0.0989 0.4460 -0.17387 2019 5 19 58622 0.1005 0.4465 -0.17449 2019 5 20 58623 0.1021 0.4469 -0.17480 2019 5 21 58624 0.1037 0.4473 -0.17493 2019 5 22 58625 0.1053 0.4477 -0.17493 2019 5 23 58626 0.1069 0.4481 -0.17485 2019 5 24 58627 0.1086 0.4484 -0.17480 2019 5 25 58628 0.1102 0.4487 -0.17477 2019 5 26 58629 0.1119 0.4490 -0.17476 2019 5 27 58630 0.1135 0.4492 -0.17488 2019 5 28 58631 0.1152 0.4495 -0.17516 2019 5 29 58632 0.1169 0.4497 -0.17552 2019 5 30 58633 0.1185 0.4499 -0.17594 2019 5 31 58634 0.1202 0.4500 -0.17639 2019 6 1 58635 0.1219 0.4501 -0.17683 2019 6 2 58636 0.1236 0.4502 -0.17718 2019 6 3 58637 0.1252 0.4503 -0.17742 2019 6 4 58638 0.1269 0.4504 -0.17756 2019 6 5 58639 0.1286 0.4504 -0.17763 2019 6 6 58640 0.1303 0.4504 -0.17769 2019 6 7 58641 0.1320 0.4504 -0.17782 2019 6 8 58642 0.1336 0.4503 -0.17812 2019 6 9 58643 0.1353 0.4502 -0.17863 2019 6 10 58644 0.1370 0.4501 -0.17934 2019 6 11 58645 0.1387 0.4500 -0.18019 2019 6 12 58646 0.1403 0.4498 -0.18108 2019 6 13 58647 0.1420 0.4496 -0.18191 2019 6 14 58648 0.1437 0.4494 -0.18265 2019 6 15 58649 0.1453 0.4492 -0.18330 2019 6 16 58650 0.1470 0.4489 -0.18379 2019 6 17 58651 0.1486 0.4486 -0.18411 2019 6 18 58652 0.1503 0.4483 -0.18434 2019 6 19 58653 0.1519 0.4480 -0.18449 2019 6 20 58654 0.1535 0.4476 -0.18460 2019 6 21 58655 0.1552 0.4472 -0.18468 2019 6 22 58656 0.1568 0.4468 -0.18474 2019 6 23 58657 0.1584 0.4464 -0.18485 2019 6 24 58658 0.1600 0.4459 -0.18504 2019 6 25 58659 0.1616 0.4454 -0.18522 2019 6 26 58660 0.1632 0.4449 -0.18542 2019 6 27 58661 0.1647 0.4444 -0.18558 2019 6 28 58662 0.1663 0.4438 -0.18571 2019 6 29 58663 0.1678 0.4432 -0.18576 2019 6 30 58664 0.1694 0.4426 -0.18563 2019 7 1 58665 0.1709 0.4420 -0.18535 2019 7 2 58666 0.1724 0.4413 -0.18492 2019 7 3 58667 0.1739 0.4406 -0.18440 2019 7 4 58668 0.1754 0.4399 -0.18387 2019 7 5 58669 0.1768 0.4392 -0.18340 2019 7 6 58670 0.1783 0.4385 -0.18307 2019 7 7 58671 0.1797 0.4377 -0.18297 2019 7 8 58672 0.1811 0.4369 -0.18301 2019 7 9 58673 0.1826 0.4361 -0.18304 2019 7 10 58674 0.1839 0.4352 -0.18306 2019 7 11 58675 0.1853 0.4344 -0.18293 2019 7 12 58676 0.1867 0.4335 -0.18265 2019 7 13 58677 0.1880 0.4326 -0.18222 2019 7 14 58678 0.1893 0.4317 -0.18154 2019 7 15 58679 0.1906 0.4307 -0.18073 2019 7 16 58680 0.1919 0.4297 -0.17986 2019 7 17 58681 0.1932 0.4288 -0.17905 2019 7 18 58682 0.1944 0.4278 -0.17830 2019 7 19 58683 0.1956 0.4267 -0.17772 2019 7 20 58684 0.1969 0.4257 -0.17729 2019 7 21 58685 0.1980 0.4246 -0.17701 2019 7 22 58686 0.1992 0.4235 -0.17682 2019 7 23 58687 0.2003 0.4225 -0.17674 2019 7 24 58688 0.2015 0.4213 -0.17675 2019 7 25 58689 0.2026 0.4202 -0.17678 2019 7 26 58690 0.2036 0.4191 -0.17675 2019 7 27 58691 0.2047 0.4179 -0.17667 2019 7 28 58692 0.2057 0.4167 -0.17651 2019 7 29 58693 0.2067 0.4155 -0.17624 2019 7 30 58694 0.2077 0.4143 -0.17590 2019 7 31 58695 0.2086 0.4131 -0.17561 2019 8 1 58696 0.2096 0.4118 -0.17542 2019 8 2 58697 0.2105 0.4106 -0.17540 2019 8 3 58698 0.2114 0.4093 -0.17563 2019 8 4 58699 0.2122 0.4080 -0.17613 2019 8 5 58700 0.2131 0.4067 -0.17671 2019 8 6 58701 0.2139 0.4054 -0.17728 2019 8 7 58702 0.2146 0.4041 -0.17777 2019 8 8 58703 0.2154 0.4027 -0.17810 2019 8 9 58704 0.2161 0.4014 -0.17824 2019 8 10 58705 0.2168 0.4000 -0.17828 2019 8 11 58706 0.2175 0.3986 -0.17822 2019 8 12 58707 0.2181 0.3973 -0.17812 2019 8 13 58708 0.2188 0.3959 -0.17801 2019 8 14 58709 0.2193 0.3945 -0.17797 2019 8 15 58710 0.2199 0.3931 -0.17800 2019 8 16 58711 0.2204 0.3916 -0.17810 2019 8 17 58712 0.2209 0.3902 -0.17834 2019 8 18 58713 0.2214 0.3888 -0.17870 2019 8 19 58714 0.2219 0.3873 -0.17913 2019 8 20 58715 0.2223 0.3859 -0.17958 2019 8 21 58716 0.2227 0.3844 -0.18001 2019 8 22 58717 0.2230 0.3830 -0.18041 2019 8 23 58718 0.2234 0.3815 -0.18077 2019 8 24 58719 0.2237 0.3800 -0.18102 2019 8 25 58720 0.2240 0.3786 -0.18117 2019 8 26 58721 0.2242 0.3771 -0.18125 2019 8 27 58722 0.2244 0.3756 -0.18126 2019 8 28 58723 0.2246 0.3741 -0.18129 2019 8 29 58724 0.2248 0.3726 -0.18146 2019 8 30 58725 0.2249 0.3711 -0.18193 2019 8 31 58726 0.2250 0.3696 -0.18268 2019 9 1 58727 0.2250 0.3681 -0.18361 2019 9 2 58728 0.2251 0.3666 -0.18459 2019 9 3 58729 0.2251 0.3652 -0.18552 2019 9 4 58730 0.2251 0.3637 -0.18635 2019 9 5 58731 0.2250 0.3622 -0.18705 2019 9 6 58732 0.2249 0.3607 -0.18753 2019 9 7 58733 0.2248 0.3592 -0.18784 2019 9 8 58734 0.2247 0.3577 -0.18810 2019 9 9 58735 0.2245 0.3562 -0.18834 2019 9 10 58736 0.2243 0.3547 -0.18862 2019 9 11 58737 0.2241 0.3532 -0.18892 2019 9 12 58738 0.2238 0.3517 -0.18929 2019 9 13 58739 0.2235 0.3503 -0.18974 2019 9 14 58740 0.2232 0.3488 -0.19029 2019 9 15 58741 0.2228 0.3473 -0.19093 2019 9 16 58742 0.2225 0.3459 -0.19159 2019 9 17 58743 0.2221 0.3444 -0.19230 2019 9 18 58744 0.2216 0.3430 -0.19301 2019 9 19 58745 0.2212 0.3415 -0.19368 2019 9 20 58746 0.2207 0.3401 -0.19428 2019 9 21 58747 0.2201 0.3387 -0.19477 2019 9 22 58748 0.2196 0.3372 -0.19516 2019 9 23 58749 0.2190 0.3358 -0.19556 2019 9 24 58750 0.2184 0.3344 -0.19598 2019 9 25 58751 0.2178 0.3330 -0.19661 2019 9 26 58752 0.2171 0.3317 -0.19746 2019 9 27 58753 0.2164 0.3303 -0.19859 2019 9 28 58754 0.2157 0.3289 -0.19999 2019 9 29 58755 0.2149 0.3276 -0.20156 2019 9 30 58756 0.2141 0.3262 -0.20315 2019 10 1 58757 0.2133 0.3249 -0.20467 2019 10 2 58758 0.2125 0.3236 -0.20603 2019 10 3 58759 0.2117 0.3223 -0.20710 2019 10 4 58760 0.2108 0.3210 -0.20795 These predictions are based on all announced leap seconds. IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 58332 -112.7 -11.6 58333 -113.0 -11.6 58334 -113.3 -11.5 58335 -113.9 -11.6 58336 -114.2 -11.7 58337 -114.3 -11.7 58338 -114.4 -11.8 58339 -114.5 -11.9 58340 -114.4 -11.8 58341 -114.2 -11.7 58342 -114.0 -11.5 58343 -113.9 -11.5 58344 -114.1 -11.6 58345 -114.5 -11.4 58346 -115.0 -11.2 58347 -115.2 -11.1 58348 -115.0 -11.3 58349 -114.7 -11.6 58350 -114.7 -11.8 58351 -114.9 -11.9 58352 -115.1 -11.9 58353 -115.0 -11.8 58354 -114.9 -11.8 58355 -114.8 -11.6 58356 -114.8 -11.5 58357 -114.8 -11.3 58358 -114.8 -11.2 58359 -114.9 -11.3 58360 -115.0 -11.3 58361 -115.0 -11.3 58362 -115.1 -11.5 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 58332 -0.03 0.00 58333 -0.07 -0.07 58334 0.00 0.00 58335 0.00 0.00 58336 0.00 0.00 58337 0.00 0.00 58338 0.00 0.00 58339 -0.07 0.05 58340 -0.06 0.07 58341 -0.06 0.09 58342 -0.06 0.12 58343 -0.06 0.14 58344 -0.05 0.16 58345 -0.05 0.19 58346 -0.05 0.21 58347 -0.04 0.23 58348 -0.04 0.24 58349 -0.03 0.24 58350 -0.03 0.24 58351 -0.02 0.24 58352 -0.01 0.24 58353 -0.01 0.24 58354 0.00 0.24 58355 0.00 0.23 58356 -0.00 0.21 58357 -0.01 0.19 58358 -0.01 0.18 58359 -0.01 0.16 58360 -0.01 0.14 58361 -0.02 0.13 58362 0.00 0.00 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).