********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 13 September 2018 Vol. XXXI No. 037 ______________________________________________________________________ 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 9 7 58368 0.21249 .00009 0.36036 .00009 0.062195 0.000012 18 9 8 58369 0.21272 .00009 0.35979 .00009 0.061775 0.000012 18 9 9 58370 0.21279 .00009 0.35909 .00009 0.061156 0.000012 18 9 10 58371 0.21311 .00009 0.35831 .00009 0.060336 0.000008 18 9 11 58372 0.21371 .00009 0.35750 .00009 0.059376 0.000008 18 9 12 58373 0.21411 .00009 0.35668 .00009 0.058387 0.000008 18 9 13 58374 0.21406 .00009 0.35589 .00009 0.057524 0.000009 _______________________________________________________________________ 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 = 0.1190 + 0.0962 cos A - 0.0411 sin A - 0.0007 cos C + 0.0246 sin C y = 0.3588 - 0.0334 cos A - 0.0930 sin A + 0.0246 cos C + 0.0007 sin C UT1-UTC = 0.0201 - 0.00067 (MJD - 58382) - (UT2-UT1) where A = 2*pi*(MJD-58374)/365.25 and C = 2*pi*(MJD-58374)/435. TAI-UTC(MJD 58375) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58374)**0.80 S t = 0.00025 (MJD-58374)**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 14 58375 0.2139 0.3550 0.05685 2018 9 15 58376 0.2135 0.3540 0.05637 2018 9 16 58377 0.2132 0.3530 0.05605 2018 9 17 58378 0.2129 0.3518 0.05584 2018 9 18 58379 0.2126 0.3506 0.05569 2018 9 19 58380 0.2123 0.3493 0.05555 2018 9 20 58381 0.2120 0.3480 0.05537 2018 9 21 58382 0.2116 0.3468 0.05512 2018 9 22 58383 0.2111 0.3456 0.05476 2018 9 23 58384 0.2106 0.3443 0.05427 2018 9 24 58385 0.2101 0.3430 0.05365 2018 9 25 58386 0.2095 0.3418 0.05291 2018 9 26 58387 0.2090 0.3405 0.05204 2018 9 27 58388 0.2085 0.3392 0.05111 2018 9 28 58389 0.2080 0.3380 0.05020 2018 9 29 58390 0.2075 0.3368 0.04936 2018 9 30 58391 0.2070 0.3356 0.04863 2018 10 1 58392 0.2064 0.3343 0.04799 2018 10 2 58393 0.2058 0.3331 0.04742 2018 10 3 58394 0.2052 0.3319 0.04685 2018 10 4 58395 0.2046 0.3308 0.04621 2018 10 5 58396 0.2039 0.3296 0.04542 2018 10 6 58397 0.2032 0.3285 0.04444 2018 10 7 58398 0.2024 0.3273 0.04325 2018 10 8 58399 0.2017 0.3261 0.04192 2018 10 9 58400 0.2009 0.3250 0.04051 2018 10 10 58401 0.2000 0.3238 0.03914 2018 10 11 58402 0.1992 0.3227 0.03788 2018 10 12 58403 0.1983 0.3216 0.03676 2018 10 13 58404 0.1974 0.3205 0.03580 2018 10 14 58405 0.1964 0.3194 0.03499 2018 10 15 58406 0.1955 0.3183 0.03427 2018 10 16 58407 0.1945 0.3172 0.03360 2018 10 17 58408 0.1935 0.3162 0.03293 2018 10 18 58409 0.1924 0.3151 0.03220 2018 10 19 58410 0.1914 0.3141 0.03135 2018 10 20 58411 0.1903 0.3131 0.03037 2018 10 21 58412 0.1893 0.3121 0.02924 2018 10 22 58413 0.1882 0.3111 0.02797 2018 10 23 58414 0.1870 0.3101 0.02658 2018 10 24 58415 0.1859 0.3091 0.02512 2018 10 25 58416 0.1847 0.3082 0.02365 2018 10 26 58417 0.1836 0.3073 0.02223 2018 10 27 58418 0.1824 0.3064 0.02091 2018 10 28 58419 0.1812 0.3055 0.01972 2018 10 29 58420 0.1799 0.3046 0.01864 2018 10 30 58421 0.1787 0.3038 0.01763 2018 10 31 58422 0.1774 0.3029 0.01661 2018 11 1 58423 0.1761 0.3021 0.01552 2018 11 2 58424 0.1748 0.3013 0.01431 2018 11 3 58425 0.1735 0.3006 0.01295 2018 11 4 58426 0.1722 0.2998 0.01147 2018 11 5 58427 0.1708 0.2991 0.00993 2018 11 6 58428 0.1694 0.2984 0.00841 2018 11 7 58429 0.1681 0.2977 0.00698 2018 11 8 58430 0.1667 0.2970 0.00570 2018 11 9 58431 0.1652 0.2964 0.00460 2018 11 10 58432 0.1638 0.2957 0.00366 2018 11 11 58433 0.1624 0.2951 0.00285 2018 11 12 58434 0.1609 0.2945 0.00213 2018 11 13 58435 0.1595 0.2940 0.00144 2018 11 14 58436 0.1580 0.2934 0.00073 2018 11 15 58437 0.1565 0.2929 -0.00005 2018 11 16 58438 0.1550 0.2924 -0.00094 2018 11 17 58439 0.1535 0.2920 -0.00195 2018 11 18 58440 0.1520 0.2915 -0.00308 2018 11 19 58441 0.1505 0.2911 -0.00434 2018 11 20 58442 0.1490 0.2907 -0.00567 2018 11 21 58443 0.1475 0.2903 -0.00704 2018 11 22 58444 0.1459 0.2900 -0.00838 2018 11 23 58445 0.1444 0.2896 -0.00962 2018 11 24 58446 0.1428 0.2893 -0.01073 2018 11 25 58447 0.1412 0.2890 -0.01171 2018 11 26 58448 0.1397 0.2888 -0.01259 2018 11 27 58449 0.1381 0.2885 -0.01346 2018 11 28 58450 0.1365 0.2883 -0.01439 2018 11 29 58451 0.1349 0.2881 -0.01543 2018 11 30 58452 0.1334 0.2880 -0.01660 2018 12 1 58453 0.1318 0.2878 -0.01790 2018 12 2 58454 0.1302 0.2877 -0.01926 2018 12 3 58455 0.1286 0.2876 -0.02063 2018 12 4 58456 0.1270 0.2876 -0.02191 2018 12 5 58457 0.1254 0.2875 -0.02307 2018 12 6 58458 0.1238 0.2875 -0.02406 2018 12 7 58459 0.1222 0.2875 -0.02489 2018 12 8 58460 0.1206 0.2876 -0.02555 2018 12 9 58461 0.1190 0.2876 -0.02611 2018 12 10 58462 0.1174 0.2877 -0.02659 2018 12 11 58463 0.1158 0.2878 -0.02706 2018 12 12 58464 0.1142 0.2880 -0.02756 2018 12 13 58465 0.1126 0.2881 -0.02813 2018 12 14 58466 0.1110 0.2883 -0.02880 2018 12 15 58467 0.1095 0.2885 -0.02958 2018 12 16 58468 0.1079 0.2887 -0.03047 2018 12 17 58469 0.1063 0.2890 -0.03144 2018 12 18 58470 0.1047 0.2893 -0.03245 2018 12 19 58471 0.1032 0.2896 -0.03347 2018 12 20 58472 0.1016 0.2899 -0.03444 2018 12 21 58473 0.1001 0.2902 -0.03529 2018 12 22 58474 0.0985 0.2906 -0.03603 2018 12 23 58475 0.0970 0.2910 -0.03666 2018 12 24 58476 0.0955 0.2914 -0.03724 2018 12 25 58477 0.0940 0.2919 -0.03787 2018 12 26 58478 0.0925 0.2924 -0.03862 2018 12 27 58479 0.0910 0.2929 -0.03950 2018 12 28 58480 0.0895 0.2934 -0.04052 2018 12 29 58481 0.0880 0.2939 -0.04161 2018 12 30 58482 0.0865 0.2945 -0.04269 2018 12 31 58483 0.0851 0.2950 -0.04375 2019 1 1 58484 0.0836 0.2957 -0.04467 2019 1 2 58485 0.0822 0.2963 -0.04544 2019 1 3 58486 0.0808 0.2969 -0.04604 2019 1 4 58487 0.0794 0.2976 -0.04650 2019 1 5 58488 0.0780 0.2983 -0.04685 2019 1 6 58489 0.0766 0.2990 -0.04713 2019 1 7 58490 0.0753 0.2998 -0.04740 2019 1 8 58491 0.0739 0.3005 -0.04770 2019 1 9 58492 0.0726 0.3013 -0.04808 2019 1 10 58493 0.0713 0.3021 -0.04856 2019 1 11 58494 0.0700 0.3029 -0.04915 2019 1 12 58495 0.0687 0.3037 -0.04986 2019 1 13 58496 0.0674 0.3046 -0.05066 2019 1 14 58497 0.0662 0.3055 -0.05153 2019 1 15 58498 0.0649 0.3064 -0.05242 2019 1 16 58499 0.0637 0.3073 -0.05330 2019 1 17 58500 0.0625 0.3082 -0.05412 2019 1 18 58501 0.0614 0.3092 -0.05485 2019 1 19 58502 0.0602 0.3102 -0.05549 2019 1 20 58503 0.0591 0.3112 -0.05609 2019 1 21 58504 0.0579 0.3122 -0.05672 2019 1 22 58505 0.0568 0.3132 -0.05747 2019 1 23 58506 0.0558 0.3142 -0.05840 2019 1 24 58507 0.0547 0.3153 -0.05951 2019 1 25 58508 0.0537 0.3164 -0.06075 2019 1 26 58509 0.0527 0.3175 -0.06201 2019 1 27 58510 0.0517 0.3186 -0.06323 2019 1 28 58511 0.0507 0.3197 -0.06431 2019 1 29 58512 0.0498 0.3208 -0.06523 2019 1 30 58513 0.0488 0.3220 -0.06598 2019 1 31 58514 0.0479 0.3232 -0.06659 2019 2 1 58515 0.0471 0.3243 -0.06708 2019 2 2 58516 0.0462 0.3255 -0.06750 2019 2 3 58517 0.0454 0.3267 -0.06791 2019 2 4 58518 0.0446 0.3280 -0.06834 2019 2 5 58519 0.0438 0.3292 -0.06885 2019 2 6 58520 0.0430 0.3304 -0.06947 2019 2 7 58521 0.0423 0.3317 -0.07020 2019 2 8 58522 0.0416 0.3330 -0.07106 2019 2 9 58523 0.0409 0.3343 -0.07201 2019 2 10 58524 0.0403 0.3355 -0.07304 2019 2 11 58525 0.0397 0.3369 -0.07409 2019 2 12 58526 0.0391 0.3382 -0.07514 2019 2 13 58527 0.0385 0.3395 -0.07613 2019 2 14 58528 0.0379 0.3408 -0.07705 2019 2 15 58529 0.0374 0.3422 -0.07789 2019 2 16 58530 0.0369 0.3435 -0.07867 2019 2 17 58531 0.0364 0.3449 -0.07946 2019 2 18 58532 0.0360 0.3462 -0.08035 2019 2 19 58533 0.0356 0.3476 -0.08142 2019 2 20 58534 0.0352 0.3490 -0.08271 2019 2 21 58535 0.0348 0.3503 -0.08418 2019 2 22 58536 0.0345 0.3517 -0.08574 2019 2 23 58537 0.0342 0.3531 -0.08730 2019 2 24 58538 0.0339 0.3545 -0.08874 2019 2 25 58539 0.0337 0.3559 -0.09001 2019 2 26 58540 0.0335 0.3573 -0.09108 2019 2 27 58541 0.0333 0.3587 -0.09197 2019 2 28 58542 0.0331 0.3601 -0.09273 2019 3 1 58543 0.0330 0.3616 -0.09339 2019 3 2 58544 0.0329 0.3630 -0.09403 2019 3 3 58545 0.0328 0.3644 -0.09468 2019 3 4 58546 0.0327 0.3658 -0.09539 2019 3 5 58547 0.0327 0.3672 -0.09621 2019 3 6 58548 0.0327 0.3687 -0.09714 2019 3 7 58549 0.0328 0.3701 -0.09820 2019 3 8 58550 0.0328 0.3715 -0.09937 2019 3 9 58551 0.0329 0.3729 -0.10062 2019 3 10 58552 0.0330 0.3744 -0.10190 2019 3 11 58553 0.0332 0.3758 -0.10318 2019 3 12 58554 0.0334 0.3772 -0.10440 2019 3 13 58555 0.0336 0.3786 -0.10554 2019 3 14 58556 0.0338 0.3800 -0.10659 2019 3 15 58557 0.0341 0.3814 -0.10758 2019 3 16 58558 0.0343 0.3828 -0.10855 2019 3 17 58559 0.0347 0.3842 -0.10958 2019 3 18 58560 0.0350 0.3856 -0.11077 2019 3 19 58561 0.0354 0.3870 -0.11216 2019 3 20 58562 0.0358 0.3884 -0.11376 2019 3 21 58563 0.0362 0.3898 -0.11550 2019 3 22 58564 0.0367 0.3912 -0.11728 2019 3 23 58565 0.0372 0.3925 -0.11895 2019 3 24 58566 0.0377 0.3939 -0.12043 2019 3 25 58567 0.0382 0.3952 -0.12165 2019 3 26 58568 0.0388 0.3966 -0.12262 2019 3 27 58569 0.0394 0.3979 -0.12338 2019 3 28 58570 0.0400 0.3992 -0.12400 2019 3 29 58571 0.0406 0.4005 -0.12454 2019 3 30 58572 0.0413 0.4019 -0.12508 2019 3 31 58573 0.0420 0.4032 -0.12566 2019 4 1 58574 0.0427 0.4044 -0.12635 2019 4 2 58575 0.0435 0.4057 -0.12716 2019 4 3 58576 0.0442 0.4070 -0.12810 2019 4 4 58577 0.0450 0.4082 -0.12917 2019 4 5 58578 0.0459 0.4095 -0.13033 2019 4 6 58579 0.0467 0.4107 -0.13154 2019 4 7 58580 0.0476 0.4119 -0.13274 2019 4 8 58581 0.0485 0.4131 -0.13387 2019 4 9 58582 0.0494 0.4143 -0.13488 2019 4 10 58583 0.0503 0.4155 -0.13575 2019 4 11 58584 0.0513 0.4166 -0.13650 2019 4 12 58585 0.0523 0.4178 -0.13719 2019 4 13 58586 0.0533 0.4189 -0.13788 2019 4 14 58587 0.0543 0.4200 -0.13867 2019 4 15 58588 0.0554 0.4211 -0.13963 2019 4 16 58589 0.0565 0.4222 -0.14081 2019 4 17 58590 0.0576 0.4233 -0.14220 2019 4 18 58591 0.0587 0.4243 -0.14372 2019 4 19 58592 0.0598 0.4254 -0.14525 2019 4 20 58593 0.0610 0.4264 -0.14670 2019 4 21 58594 0.0622 0.4274 -0.14796 2019 4 22 58595 0.0634 0.4284 -0.14903 2019 4 23 58596 0.0646 0.4293 -0.14991 2019 4 24 58597 0.0659 0.4303 -0.15068 2019 4 25 58598 0.0671 0.4312 -0.15137 2019 4 26 58599 0.0684 0.4321 -0.15206 2019 4 27 58600 0.0697 0.4330 -0.15282 2019 4 28 58601 0.0710 0.4338 -0.15370 2019 4 29 58602 0.0723 0.4347 -0.15472 2019 4 30 58603 0.0737 0.4355 -0.15586 2019 5 1 58604 0.0751 0.4363 -0.15711 2019 5 2 58605 0.0764 0.4371 -0.15842 2019 5 3 58606 0.0778 0.4379 -0.15981 2019 5 4 58607 0.0792 0.4386 -0.16128 2019 5 5 58608 0.0807 0.4393 -0.16274 2019 5 6 58609 0.0821 0.4400 -0.16411 2019 5 7 58610 0.0836 0.4407 -0.16539 2019 5 8 58611 0.0850 0.4414 -0.16656 2019 5 9 58612 0.0865 0.4420 -0.16763 2019 5 10 58613 0.0880 0.4426 -0.16862 2019 5 11 58614 0.0895 0.4432 -0.16958 2019 5 12 58615 0.0910 0.4438 -0.17061 2019 5 13 58616 0.0926 0.4443 -0.17180 2019 5 14 58617 0.0941 0.4448 -0.17306 2019 5 15 58618 0.0956 0.4453 -0.17438 2019 5 16 58619 0.0972 0.4458 -0.17566 2019 5 17 58620 0.0988 0.4462 -0.17686 2019 5 18 58621 0.1003 0.4466 -0.17787 2019 5 19 58622 0.1019 0.4470 -0.17860 2019 5 20 58623 0.1035 0.4474 -0.17909 2019 5 21 58624 0.1051 0.4478 -0.17934 2019 5 22 58625 0.1067 0.4481 -0.17943 2019 5 23 58626 0.1083 0.4484 -0.17942 2019 5 24 58627 0.1099 0.4487 -0.17934 2019 5 25 58628 0.1116 0.4489 -0.17926 2019 5 26 58629 0.1132 0.4491 -0.17931 2019 5 27 58630 0.1148 0.4494 -0.17947 2019 5 28 58631 0.1165 0.4495 -0.17965 2019 5 29 58632 0.1181 0.4497 -0.17993 2019 5 30 58633 0.1197 0.4498 -0.18022 2019 5 31 58634 0.1214 0.4499 -0.18055 2019 6 1 58635 0.1230 0.4500 -0.18088 2019 6 2 58636 0.1247 0.4500 -0.18106 2019 6 3 58637 0.1263 0.4501 -0.18110 2019 6 4 58638 0.1280 0.4501 -0.18104 2019 6 5 58639 0.1296 0.4500 -0.18095 2019 6 6 58640 0.1313 0.4500 -0.18086 2019 6 7 58641 0.1329 0.4499 -0.18088 2019 6 8 58642 0.1346 0.4498 -0.18108 2019 6 9 58643 0.1362 0.4497 -0.18146 2019 6 10 58644 0.1378 0.4495 -0.18197 2019 6 11 58645 0.1395 0.4494 -0.18263 2019 6 12 58646 0.1411 0.4492 -0.18337 2019 6 13 58647 0.1427 0.4489 -0.18407 2019 6 14 58648 0.1444 0.4487 -0.18460 2019 6 15 58649 0.1460 0.4484 -0.18497 2019 6 16 58650 0.1476 0.4481 -0.18514 2019 6 17 58651 0.1492 0.4478 -0.18511 2019 6 18 58652 0.1508 0.4474 -0.18493 2019 6 19 58653 0.1524 0.4471 -0.18470 2019 6 20 58654 0.1540 0.4467 -0.18444 2019 6 21 58655 0.1555 0.4462 -0.18418 2019 6 22 58656 0.1571 0.4458 -0.18403 2019 6 23 58657 0.1587 0.4453 -0.18403 2019 6 24 58658 0.1602 0.4448 -0.18411 2019 6 25 58659 0.1618 0.4443 -0.18426 2019 6 26 58660 0.1633 0.4438 -0.18451 2019 6 27 58661 0.1648 0.4432 -0.18478 2019 6 28 58662 0.1663 0.4426 -0.18506 2019 6 29 58663 0.1678 0.4420 -0.18535 2019 6 30 58664 0.1693 0.4414 -0.18559 2019 7 1 58665 0.1707 0.4407 -0.18576 2019 7 2 58666 0.1722 0.4400 -0.18583 2019 7 3 58667 0.1736 0.4393 -0.18587 2019 7 4 58668 0.1751 0.4386 -0.18594 2019 7 5 58669 0.1765 0.4378 -0.18607 2019 7 6 58670 0.1779 0.4371 -0.18638 2019 7 7 58671 0.1793 0.4363 -0.18688 2019 7 8 58672 0.1806 0.4355 -0.18748 2019 7 9 58673 0.1820 0.4346 -0.18809 2019 7 10 58674 0.1833 0.4338 -0.18861 2019 7 11 58675 0.1846 0.4329 -0.18900 2019 7 12 58676 0.1859 0.4320 -0.18924 2019 7 13 58677 0.1872 0.4311 -0.18924 2019 7 14 58678 0.1884 0.4302 -0.18905 2019 7 15 58679 0.1897 0.4292 -0.18870 2019 7 16 58680 0.1909 0.4283 -0.18821 2019 7 17 58681 0.1921 0.4273 -0.18763 2019 7 18 58682 0.1933 0.4263 -0.18703 2019 7 19 58683 0.1944 0.4252 -0.18656 2019 7 20 58684 0.1956 0.4242 -0.18623 2019 7 21 58685 0.1967 0.4231 -0.18599 2019 7 22 58686 0.1978 0.4220 -0.18583 2019 7 23 58687 0.1989 0.4209 -0.18575 2019 7 24 58688 0.1999 0.4198 -0.18580 2019 7 25 58689 0.2009 0.4187 -0.18592 2019 7 26 58690 0.2019 0.4176 -0.18601 2019 7 27 58691 0.2029 0.4164 -0.18604 2019 7 28 58692 0.2039 0.4152 -0.18602 2019 7 29 58693 0.2048 0.4140 -0.18594 2019 7 30 58694 0.2057 0.4128 -0.18580 2019 7 31 58695 0.2066 0.4116 -0.18564 2019 8 1 58696 0.2075 0.4104 -0.18552 2019 8 2 58697 0.2083 0.4091 -0.18555 2019 8 3 58698 0.2091 0.4079 -0.18577 2019 8 4 58699 0.2099 0.4066 -0.18617 2019 8 5 58700 0.2107 0.4053 -0.18662 2019 8 6 58701 0.2114 0.4040 -0.18709 2019 8 7 58702 0.2121 0.4027 -0.18746 2019 8 8 58703 0.2128 0.4014 -0.18768 2019 8 9 58704 0.2135 0.4000 -0.18771 2019 8 10 58705 0.2141 0.3987 -0.18753 2019 8 11 58706 0.2147 0.3974 -0.18719 2019 8 12 58707 0.2153 0.3960 -0.18679 2019 8 13 58708 0.2158 0.3946 -0.18636 2019 8 14 58709 0.2163 0.3933 -0.18602 2019 8 15 58710 0.2168 0.3919 -0.18577 2019 8 16 58711 0.2173 0.3905 -0.18563 2019 8 17 58712 0.2177 0.3891 -0.18565 2019 8 18 58713 0.2181 0.3877 -0.18580 2019 8 19 58714 0.2185 0.3863 -0.18605 2019 8 20 58715 0.2188 0.3848 -0.18641 2019 8 21 58716 0.2191 0.3834 -0.18683 2019 8 22 58717 0.2194 0.3820 -0.18718 2019 8 23 58718 0.2197 0.3806 -0.18748 2019 8 24 58719 0.2199 0.3791 -0.18772 2019 8 25 58720 0.2201 0.3777 -0.18783 2019 8 26 58721 0.2203 0.3762 -0.18785 2019 8 27 58722 0.2204 0.3748 -0.18783 2019 8 28 58723 0.2206 0.3733 -0.18780 2019 8 29 58724 0.2206 0.3719 -0.18791 2019 8 30 58725 0.2207 0.3704 -0.18826 2019 8 31 58726 0.2207 0.3690 -0.18881 2019 9 1 58727 0.2207 0.3675 -0.18953 2019 9 2 58728 0.2207 0.3661 -0.19030 2019 9 3 58729 0.2206 0.3646 -0.19102 2019 9 4 58730 0.2205 0.3632 -0.19159 2019 9 5 58731 0.2204 0.3617 -0.19195 2019 9 6 58732 0.2202 0.3603 -0.19207 2019 9 7 58733 0.2201 0.3588 -0.19204 2019 9 8 58734 0.2199 0.3574 -0.19191 2019 9 9 58735 0.2196 0.3559 -0.19173 2019 9 10 58736 0.2193 0.3545 -0.19163 2019 9 11 58737 0.2190 0.3531 -0.19164 2019 9 12 58738 0.2187 0.3516 -0.19190 2019 9 13 58739 0.2184 0.3502 -0.19234 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) 58345 -114.83 0.50 -11.47 0.16 58346 -115.30 0.50 -11.24 0.16 58347 -115.44 0.50 -11.13 0.16 58348 -115.21 0.17 -11.30 0.21 58349 -114.92 0.20 -11.61 0.20 58350 -114.90 0.20 -11.84 0.20 58351 -115.08 0.23 -11.89 0.18 58352 -115.20 0.17 -11.86 0.19 58353 -115.14 0.17 -11.83 0.19 58354 -114.98 0.17 -11.77 0.19 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58345 -0.160 0.199 0.119 0.162 58346 -0.149 0.199 0.137 0.162 58347 -0.136 0.199 0.153 0.162 58348 -0.122 0.068 0.167 0.214 58349 -0.107 0.080 0.177 0.198 58350 -0.092 0.080 0.184 0.198 58351 -0.076 0.090 0.189 0.181 58352 -0.058 0.069 0.192 0.185 58353 -0.040 0.069 0.196 0.185 58354 -0.021 0.069 0.198 0.185 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).