********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 31 May 2018 Vol. XXXI No. 022 ______________________________________________________________________ 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: * * 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 5 25 58263 0.10445 .00009 0.44791 .00009 0.081656 0.000022 18 5 26 58264 0.10607 .00009 0.44791 .00009 0.080650 0.000023 18 5 27 58265 0.10755 .00009 0.44770 .00009 0.079691 0.000023 18 5 28 58266 0.10909 .00009 0.44744 .00009 0.078837 0.000016 18 5 29 58267 0.11066 .00009 0.44725 .00009 0.078178 0.000016 18 5 30 58268 0.11208 .00009 0.44718 .00009 0.077716 0.000015 18 5 31 58269 0.11321 .00009 0.44715 .00009 0.077353 0.000015 _______________________________________________________________________ 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 = 0.1097 + 0.0006 cos A + 0.1416 sin A + 0.0047 cos C - 0.0292 sin C y = 0.3431 + 0.1338 cos A + 0.0015 sin A - 0.0292 cos C - 0.0047 sin C UT1-UTC = 0.1133 - 0.00076 (MJD - 58277) - (UT2-UT1) where A = 2*pi*(MJD-58269)/365.25 and C = 2*pi*(MJD-58269)/435. TAI-UTC(MJD 58270) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58269)**0.80 S t = 0.00025 (MJD-58269)**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 1 58270 0.1144 0.4470 0.07706 2018 6 2 58271 0.1156 0.4468 0.07681 2018 6 3 58272 0.1168 0.4465 0.07653 2018 6 4 58273 0.1182 0.4462 0.07618 2018 6 5 58274 0.1198 0.4459 0.07575 2018 6 6 58275 0.1213 0.4456 0.07522 2018 6 7 58276 0.1229 0.4454 0.07459 2018 6 8 58277 0.1245 0.4453 0.07386 2018 6 9 58278 0.1259 0.4451 0.07304 2018 6 10 58279 0.1274 0.4449 0.07216 2018 6 11 58280 0.1289 0.4446 0.07129 2018 6 12 58281 0.1304 0.4443 0.07052 2018 6 13 58282 0.1319 0.4439 0.06992 2018 6 14 58283 0.1334 0.4436 0.06946 2018 6 15 58284 0.1349 0.4432 0.06911 2018 6 16 58285 0.1364 0.4428 0.06880 2018 6 17 58286 0.1379 0.4424 0.06847 2018 6 18 58287 0.1393 0.4420 0.06809 2018 6 19 58288 0.1407 0.4416 0.06763 2018 6 20 58289 0.1422 0.4411 0.06715 2018 6 21 58290 0.1436 0.4406 0.06667 2018 6 22 58291 0.1450 0.4401 0.06626 2018 6 23 58292 0.1464 0.4396 0.06595 2018 6 24 58293 0.1478 0.4390 0.06578 2018 6 25 58294 0.1492 0.4384 0.06576 2018 6 26 58295 0.1506 0.4378 0.06587 2018 6 27 58296 0.1519 0.4372 0.06611 2018 6 28 58297 0.1533 0.4366 0.06645 2018 6 29 58298 0.1547 0.4359 0.06684 2018 6 30 58299 0.1560 0.4353 0.06723 2018 7 1 58300 0.1574 0.4346 0.06760 2018 7 2 58301 0.1587 0.4339 0.06789 2018 7 3 58302 0.1600 0.4331 0.06809 2018 7 4 58303 0.1613 0.4324 0.06819 2018 7 5 58304 0.1626 0.4316 0.06819 2018 7 6 58305 0.1638 0.4308 0.06812 2018 7 7 58306 0.1651 0.4300 0.06800 2018 7 8 58307 0.1663 0.4291 0.06789 2018 7 9 58308 0.1675 0.4283 0.06782 2018 7 10 58309 0.1687 0.4274 0.06785 2018 7 11 58310 0.1699 0.4265 0.06801 2018 7 12 58311 0.1711 0.4256 0.06826 2018 7 13 58312 0.1722 0.4246 0.06856 2018 7 14 58313 0.1733 0.4237 0.06882 2018 7 15 58314 0.1745 0.4227 0.06898 2018 7 16 58315 0.1756 0.4217 0.06901 2018 7 17 58316 0.1766 0.4207 0.06893 2018 7 18 58317 0.1777 0.4197 0.06881 2018 7 19 58318 0.1787 0.4187 0.06872 2018 7 20 58319 0.1797 0.4176 0.06873 2018 7 21 58320 0.1807 0.4165 0.06888 2018 7 22 58321 0.1817 0.4154 0.06917 2018 7 23 58322 0.1827 0.4143 0.06960 2018 7 24 58323 0.1836 0.4132 0.07016 2018 7 25 58324 0.1845 0.4121 0.07081 2018 7 26 58325 0.1854 0.4109 0.07152 2018 7 27 58326 0.1863 0.4098 0.07225 2018 7 28 58327 0.1871 0.4086 0.07294 2018 7 29 58328 0.1879 0.4074 0.07355 2018 7 30 58329 0.1887 0.4062 0.07405 2018 7 31 58330 0.1895 0.4050 0.07443 2018 8 1 58331 0.1903 0.4037 0.07468 2018 8 2 58332 0.1910 0.4025 0.07482 2018 8 3 58333 0.1917 0.4012 0.07489 2018 8 4 58334 0.1924 0.3999 0.07491 2018 8 5 58335 0.1930 0.3987 0.07493 2018 8 6 58336 0.1937 0.3974 0.07499 2018 8 7 58337 0.1943 0.3961 0.07513 2018 8 8 58338 0.1949 0.3947 0.07532 2018 8 9 58339 0.1954 0.3934 0.07553 2018 8 10 58340 0.1959 0.3921 0.07569 2018 8 11 58341 0.1965 0.3907 0.07571 2018 8 12 58342 0.1969 0.3894 0.07556 2018 8 13 58343 0.1974 0.3880 0.07524 2018 8 14 58344 0.1978 0.3867 0.07480 2018 8 15 58345 0.1982 0.3853 0.07433 2018 8 16 58346 0.1986 0.3839 0.07393 2018 8 17 58347 0.1989 0.3825 0.07365 2018 8 18 58348 0.1993 0.3811 0.07352 2018 8 19 58349 0.1996 0.3797 0.07356 2018 8 20 58350 0.1998 0.3783 0.07373 2018 8 21 58351 0.2001 0.3769 0.07400 2018 8 22 58352 0.2003 0.3755 0.07434 2018 8 23 58353 0.2005 0.3741 0.07469 2018 8 24 58354 0.2006 0.3726 0.07499 2018 8 25 58355 0.2008 0.3712 0.07522 2018 8 26 58356 0.2009 0.3698 0.07532 2018 8 27 58357 0.2010 0.3683 0.07529 2018 8 28 58358 0.2010 0.3669 0.07511 2018 8 29 58359 0.2010 0.3655 0.07481 2018 8 30 58360 0.2010 0.3640 0.07442 2018 8 31 58361 0.2010 0.3626 0.07398 2018 9 1 58362 0.2009 0.3611 0.07355 2018 9 2 58363 0.2008 0.3597 0.07317 2018 9 3 58364 0.2007 0.3583 0.07285 2018 9 4 58365 0.2006 0.3568 0.07260 2018 9 5 58366 0.2004 0.3554 0.07239 2018 9 6 58367 0.2002 0.3540 0.07214 2018 9 7 58368 0.2000 0.3525 0.07180 2018 9 8 58369 0.1998 0.3511 0.07127 2018 9 9 58370 0.1995 0.3497 0.07055 2018 9 10 58371 0.1992 0.3483 0.06965 2018 9 11 58372 0.1988 0.3468 0.06864 2018 9 12 58373 0.1985 0.3454 0.06764 2018 9 13 58374 0.1981 0.3440 0.06672 2018 9 14 58375 0.1977 0.3426 0.06595 2018 9 15 58376 0.1973 0.3412 0.06534 2018 9 16 58377 0.1968 0.3398 0.06488 2018 9 17 58378 0.1963 0.3384 0.06456 2018 9 18 58379 0.1958 0.3371 0.06431 2018 9 19 58380 0.1953 0.3357 0.06409 2018 9 20 58381 0.1947 0.3343 0.06384 2018 9 21 58382 0.1941 0.3330 0.06351 2018 9 22 58383 0.1935 0.3316 0.06308 2018 9 23 58384 0.1928 0.3303 0.06251 2018 9 24 58385 0.1922 0.3290 0.06180 2018 9 25 58386 0.1915 0.3276 0.06095 2018 9 26 58387 0.1907 0.3263 0.06001 2018 9 27 58388 0.1900 0.3250 0.05902 2018 9 28 58389 0.1892 0.3238 0.05803 2018 9 29 58390 0.1884 0.3225 0.05711 2018 9 30 58391 0.1876 0.3212 0.05628 2018 10 1 58392 0.1868 0.3200 0.05554 2018 10 2 58393 0.1859 0.3187 0.05487 2018 10 3 58394 0.1850 0.3175 0.05421 2018 10 4 58395 0.1841 0.3163 0.05349 2018 10 5 58396 0.1832 0.3151 0.05264 2018 10 6 58397 0.1822 0.3139 0.05161 2018 10 7 58398 0.1812 0.3128 0.05040 2018 10 8 58399 0.1802 0.3116 0.04905 2018 10 9 58400 0.1792 0.3105 0.04765 2018 10 10 58401 0.1782 0.3094 0.04629 2018 10 11 58402 0.1771 0.3083 0.04505 2018 10 12 58403 0.1760 0.3072 0.04397 2018 10 13 58404 0.1749 0.3061 0.04306 2018 10 14 58405 0.1738 0.3050 0.04231 2018 10 15 58406 0.1726 0.3040 0.04166 2018 10 16 58407 0.1715 0.3030 0.04107 2018 10 17 58408 0.1703 0.3020 0.04049 2018 10 18 58409 0.1691 0.3010 0.03985 2018 10 19 58410 0.1679 0.3000 0.03913 2018 10 20 58411 0.1666 0.2991 0.03828 2018 10 21 58412 0.1654 0.2982 0.03730 2018 10 22 58413 0.1641 0.2973 0.03619 2018 10 23 58414 0.1628 0.2964 0.03498 2018 10 24 58415 0.1615 0.2955 0.03369 2018 10 25 58416 0.1602 0.2947 0.03240 2018 10 26 58417 0.1588 0.2938 0.03117 2018 10 27 58418 0.1575 0.2930 0.03004 2018 10 28 58419 0.1561 0.2922 0.02904 2018 10 29 58420 0.1547 0.2915 0.02815 2018 10 30 58421 0.1533 0.2907 0.02730 2018 10 31 58422 0.1519 0.2900 0.02644 2018 11 1 58423 0.1505 0.2893 0.02549 2018 11 2 58424 0.1490 0.2886 0.02440 2018 11 3 58425 0.1476 0.2880 0.02316 2018 11 4 58426 0.1461 0.2874 0.02178 2018 11 5 58427 0.1446 0.2868 0.02033 2018 11 6 58428 0.1432 0.2862 0.01889 2018 11 7 58429 0.1417 0.2856 0.01753 2018 11 8 58430 0.1402 0.2851 0.01633 2018 11 9 58431 0.1386 0.2846 0.01530 2018 11 10 58432 0.1371 0.2841 0.01444 2018 11 11 58433 0.1356 0.2836 0.01371 2018 11 12 58434 0.1340 0.2832 0.01308 2018 11 13 58435 0.1325 0.2828 0.01248 2018 11 14 58436 0.1309 0.2824 0.01187 2018 11 15 58437 0.1293 0.2820 0.01119 2018 11 16 58438 0.1278 0.2816 0.01042 2018 11 17 58439 0.1262 0.2813 0.00953 2018 11 18 58440 0.1246 0.2810 0.00851 2018 11 19 58441 0.1230 0.2808 0.00738 2018 11 20 58442 0.1214 0.2805 0.00617 2018 11 21 58443 0.1198 0.2803 0.00492 2018 11 22 58444 0.1182 0.2801 0.00371 2018 11 23 58445 0.1166 0.2800 0.00258 2018 11 24 58446 0.1150 0.2798 0.00158 2018 11 25 58447 0.1134 0.2797 0.00071 2018 11 26 58448 0.1118 0.2796 -0.00007 2018 11 27 58449 0.1101 0.2795 -0.00084 2018 11 28 58450 0.1085 0.2795 -0.00166 2018 11 29 58451 0.1069 0.2795 -0.00260 2018 11 30 58452 0.1053 0.2795 -0.00368 2018 12 1 58453 0.1037 0.2795 -0.00487 2018 12 2 58454 0.1021 0.2796 -0.00612 2018 12 3 58455 0.1004 0.2797 -0.00737 2018 12 4 58456 0.0988 0.2798 -0.00854 2018 12 5 58457 0.0972 0.2799 -0.00958 2018 12 6 58458 0.0956 0.2801 -0.01046 2018 12 7 58459 0.0940 0.2803 -0.01117 2018 12 8 58460 0.0924 0.2805 -0.01174 2018 12 9 58461 0.0908 0.2808 -0.01220 2018 12 10 58462 0.0892 0.2810 -0.01262 2018 12 11 58463 0.0876 0.2813 -0.01305 2018 12 12 58464 0.0861 0.2816 -0.01356 2018 12 13 58465 0.0845 0.2820 -0.01419 2018 12 14 58466 0.0829 0.2824 -0.01498 2018 12 15 58467 0.0814 0.2828 -0.01592 2018 12 16 58468 0.0798 0.2832 -0.01699 2018 12 17 58469 0.0783 0.2836 -0.01818 2018 12 18 58470 0.0767 0.2841 -0.01942 2018 12 19 58471 0.0752 0.2846 -0.02066 2018 12 20 58472 0.0737 0.2851 -0.02182 2018 12 21 58473 0.0722 0.2856 -0.02286 2018 12 22 58474 0.0707 0.2862 -0.02374 2018 12 23 58475 0.0692 0.2868 -0.02450 2018 12 24 58476 0.0677 0.2874 -0.02520 2018 12 25 58477 0.0663 0.2881 -0.02593 2018 12 26 58478 0.0648 0.2887 -0.02679 2018 12 27 58479 0.0634 0.2894 -0.02781 2018 12 28 58480 0.0620 0.2901 -0.02898 2018 12 29 58481 0.0606 0.2908 -0.03026 2018 12 30 58482 0.0592 0.2916 -0.03156 2018 12 31 58483 0.0578 0.2924 -0.03280 2019 1 1 58484 0.0564 0.2932 -0.03393 2019 1 2 58485 0.0551 0.2940 -0.03490 2019 1 3 58486 0.0537 0.2948 -0.03567 2019 1 4 58487 0.0524 0.2957 -0.03626 2019 1 5 58488 0.0511 0.2966 -0.03670 2019 1 6 58489 0.0498 0.2975 -0.03705 2019 1 7 58490 0.0486 0.2984 -0.03735 2019 1 8 58491 0.0473 0.2994 -0.03768 2019 1 9 58492 0.0461 0.3003 -0.03809 2019 1 10 58493 0.0449 0.3013 -0.03861 2019 1 11 58494 0.0437 0.3023 -0.03925 2019 1 12 58495 0.0425 0.3034 -0.03998 2019 1 13 58496 0.0414 0.3044 -0.04078 2019 1 14 58497 0.0402 0.3055 -0.04168 2019 1 15 58498 0.0391 0.3066 -0.04258 2019 1 16 58499 0.0380 0.3077 -0.04354 2019 1 17 58500 0.0369 0.3088 -0.04446 2019 1 18 58501 0.0359 0.3099 -0.04530 2019 1 19 58502 0.0349 0.3111 -0.04607 2019 1 20 58503 0.0339 0.3123 -0.04681 2019 1 21 58504 0.0329 0.3134 -0.04758 2019 1 22 58505 0.0319 0.3147 -0.04850 2019 1 23 58506 0.0310 0.3159 -0.04964 2019 1 24 58507 0.0300 0.3171 -0.05090 2019 1 25 58508 0.0292 0.3184 -0.05228 2019 1 26 58509 0.0283 0.3196 -0.05370 2019 1 27 58510 0.0274 0.3209 -0.05501 2019 1 28 58511 0.0266 0.3222 -0.05616 2019 1 29 58512 0.0258 0.3235 -0.05709 2019 1 30 58513 0.0251 0.3248 -0.05779 2019 1 31 58514 0.0243 0.3262 -0.05830 2019 2 1 58515 0.0236 0.3275 -0.05870 2019 2 2 58516 0.0229 0.3289 -0.05898 2019 2 3 58517 0.0222 0.3302 -0.05922 2019 2 4 58518 0.0216 0.3316 -0.05944 2019 2 5 58519 0.0210 0.3330 -0.05975 2019 2 6 58520 0.0204 0.3344 -0.06018 2019 2 7 58521 0.0198 0.3358 -0.06073 2019 2 8 58522 0.0193 0.3373 -0.06137 2019 2 9 58523 0.0188 0.3387 -0.06212 2019 2 10 58524 0.0183 0.3401 -0.06295 2019 2 11 58525 0.0178 0.3416 -0.06380 2019 2 12 58526 0.0174 0.3430 -0.06468 2019 2 13 58527 0.0170 0.3445 -0.06558 2019 2 14 58528 0.0166 0.3460 -0.06654 2019 2 15 58529 0.0163 0.3474 -0.06747 2019 2 16 58530 0.0160 0.3489 -0.06838 2019 2 17 58531 0.0157 0.3504 -0.06922 2019 2 18 58532 0.0154 0.3519 -0.07014 2019 2 19 58533 0.0152 0.3534 -0.07119 2019 2 20 58534 0.0150 0.3549 -0.07251 2019 2 21 58535 0.0148 0.3564 -0.07405 2019 2 22 58536 0.0146 0.3579 -0.07570 2019 2 23 58537 0.0145 0.3595 -0.07739 2019 2 24 58538 0.0144 0.3610 -0.07895 2019 2 25 58539 0.0144 0.3625 -0.08040 2019 2 26 58540 0.0143 0.3640 -0.08169 2019 2 27 58541 0.0143 0.3655 -0.08278 2019 2 28 58542 0.0144 0.3671 -0.08370 2019 3 1 58543 0.0144 0.3686 -0.08445 2019 3 2 58544 0.0145 0.3701 -0.08519 2019 3 3 58545 0.0146 0.3716 -0.08594 2019 3 4 58546 0.0147 0.3731 -0.08676 2019 3 5 58547 0.0149 0.3747 -0.08769 2019 3 6 58548 0.0151 0.3762 -0.08874 2019 3 7 58549 0.0153 0.3777 -0.08993 2019 3 8 58550 0.0156 0.3792 -0.09122 2019 3 9 58551 0.0159 0.3807 -0.09259 2019 3 10 58552 0.0162 0.3822 -0.09400 2019 3 11 58553 0.0165 0.3837 -0.09537 2019 3 12 58554 0.0169 0.3852 -0.09667 2019 3 13 58555 0.0173 0.3867 -0.09787 2019 3 14 58556 0.0177 0.3882 -0.09904 2019 3 15 58557 0.0182 0.3897 -0.10016 2019 3 16 58558 0.0186 0.3911 -0.10125 2019 3 17 58559 0.0191 0.3926 -0.10234 2019 3 18 58560 0.0197 0.3941 -0.10359 2019 3 19 58561 0.0202 0.3955 -0.10502 2019 3 20 58562 0.0208 0.3969 -0.10664 2019 3 21 58563 0.0214 0.3984 -0.10843 2019 3 22 58564 0.0221 0.3998 -0.11031 2019 3 23 58565 0.0228 0.4012 -0.11218 2019 3 24 58566 0.0235 0.4026 -0.11382 2019 3 25 58567 0.0242 0.4040 -0.11530 2019 3 26 58568 0.0249 0.4054 -0.11666 2019 3 27 58569 0.0257 0.4068 -0.11781 2019 3 28 58570 0.0265 0.4081 -0.11882 2019 3 29 58571 0.0273 0.4095 -0.11983 2019 3 30 58572 0.0282 0.4108 -0.12079 2019 3 31 58573 0.0291 0.4121 -0.12184 2019 4 1 58574 0.0300 0.4134 -0.12300 2019 4 2 58575 0.0309 0.4147 -0.12429 2019 4 3 58576 0.0318 0.4160 -0.12574 2019 4 4 58577 0.0328 0.4172 -0.12733 2019 4 5 58578 0.0338 0.4185 -0.12908 2019 4 6 58579 0.0348 0.4197 -0.13090 2019 4 7 58580 0.0359 0.4209 -0.13270 2019 4 8 58581 0.0369 0.4221 -0.13445 2019 4 9 58582 0.0380 0.4233 -0.13611 2019 4 10 58583 0.0391 0.4245 -0.13768 2019 4 11 58584 0.0403 0.4256 -0.13923 2019 4 12 58585 0.0414 0.4268 -0.14068 2019 4 13 58586 0.0426 0.4279 -0.14212 2019 4 14 58587 0.0438 0.4290 -0.14367 2019 4 15 58588 0.0450 0.4301 -0.14540 2019 4 16 58589 0.0463 0.4311 -0.14735 2019 4 17 58590 0.0475 0.4322 -0.14953 2019 4 18 58591 0.0488 0.4332 -0.15184 2019 4 19 58592 0.0501 0.4342 -0.15412 2019 4 20 58593 0.0514 0.4352 -0.15631 2019 4 21 58594 0.0527 0.4361 -0.15826 2019 4 22 58595 0.0541 0.4371 -0.15993 2019 4 23 58596 0.0554 0.4380 -0.16133 2019 4 24 58597 0.0568 0.4389 -0.16256 2019 4 25 58598 0.0582 0.4397 -0.16370 2019 4 26 58599 0.0596 0.4406 -0.16483 2019 4 27 58600 0.0611 0.4414 -0.16597 2019 4 28 58601 0.0625 0.4422 -0.16707 2019 4 29 58602 0.0640 0.4430 -0.16828 2019 4 30 58603 0.0655 0.4438 -0.16956 2019 5 1 58604 0.0670 0.4445 -0.17095 2019 5 2 58605 0.0685 0.4452 -0.17250 2019 5 3 58606 0.0700 0.4459 -0.17421 2019 5 4 58607 0.0715 0.4466 -0.17596 2019 5 5 58608 0.0731 0.4472 -0.17767 2019 5 6 58609 0.0746 0.4478 -0.17930 2019 5 7 58610 0.0762 0.4484 -0.18073 2019 5 8 58611 0.0778 0.4490 -0.18200 2019 5 9 58612 0.0794 0.4495 -0.18319 2019 5 10 58613 0.0810 0.4500 -0.18433 2019 5 11 58614 0.0826 0.4505 -0.18547 2019 5 12 58615 0.0842 0.4510 -0.18673 2019 5 13 58616 0.0858 0.4514 -0.18811 2019 5 14 58617 0.0874 0.4518 -0.18964 2019 5 15 58618 0.0891 0.4522 -0.19135 2019 5 16 58619 0.0907 0.4526 -0.19308 2019 5 17 58620 0.0924 0.4529 -0.19466 2019 5 18 58621 0.0940 0.4532 -0.19607 2019 5 19 58622 0.0957 0.4535 -0.19731 2019 5 20 58623 0.0974 0.4537 -0.19835 2019 5 21 58624 0.0991 0.4540 -0.19918 2019 5 22 58625 0.1007 0.4542 -0.19985 2019 5 23 58626 0.1024 0.4543 -0.20042 2019 5 24 58627 0.1041 0.4545 -0.20094 2019 5 25 58628 0.1058 0.4546 -0.20149 2019 5 26 58629 0.1075 0.4547 -0.20213 2019 5 27 58630 0.1092 0.4547 -0.20290 2019 5 28 58631 0.1109 0.4548 -0.20364 2019 5 29 58632 0.1126 0.4548 -0.20452 2019 5 30 58633 0.1143 0.4548 -0.20550 2019 5 31 58634 0.1160 0.4547 -0.20650 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) 58243 -102.97 0.22 -12.20 0.13 58244 -102.81 0.22 -12.33 0.13 58245 -102.53 0.19 -12.40 0.14 58246 -102.14 0.00 -12.42 0.21 58247 -101.80 0.04 -12.39 0.17 58248 -101.72 0.04 -12.32 0.17 58249 -102.03 0.04 -12.23 0.17 58250 -102.53 0.04 -12.10 0.17 58251 -102.86 0.12 -11.94 0.14 58252 -102.95 0.12 -11.86 0.14 58253 -103.04 0.23 -11.95 0.09 58254 -103.33 0.30 -12.24 0.14 58255 -103.73 0.30 -12.52 0.14 58256 -103.97 0.30 -12.58 0.14 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58243 -0.082 0.087 -0.142 0.131 58244 -0.068 0.087 -0.156 0.131 58245 -0.054 0.075 -0.166 0.139 58246 -0.043 0.005 -0.172 0.208 58247 -0.035 0.015 -0.173 0.173 58248 -0.031 0.015 -0.170 0.173 58249 -0.032 0.015 -0.162 0.173 58250 -0.037 0.015 -0.152 0.173 58251 -0.046 0.048 -0.142 0.139 58252 -0.058 0.048 -0.134 0.139 58253 -0.072 0.091 -0.129 0.087 58254 -0.087 0.120 -0.128 0.143 58255 -0.103 0.120 -0.131 0.143 58256 -0.120 0.120 -0.136 0.143 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).