********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 18 February 2016 Vol. XXIX No. 007 ______________________________________________________________________ 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 31 Jan 2016 at 0000 UTC Beginning 1 July 2015: TAI-UTC = 36.000 000 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 by available by 20:00 UTC. * * * * 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 16 2 12 57430 -.01120 .00009 0.31906 .00009 0.009164 0.000027 16 2 13 57431 -.01184 .00009 0.32111 .00009 0.007102 0.000026 16 2 14 57432 -.01243 .00009 0.32324 .00009 0.005245 0.000025 16 2 15 57433 -.01309 .00009 0.32530 .00009 0.003491 0.000019 16 2 16 57434 -.01389 .00009 0.32703 .00009 0.001932 0.000017 16 2 17 57435 -.01481 .00009 0.32859 .00009 0.000512 0.000014 16 2 18 57436 -.01593 .00009 0.33037 .00009 -0.000806 0.000014 _______________________________________________________________________ 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 = 0.0937 - 0.0949 cos A - 0.0419 sin A - 0.0185 cos C - 0.0004 sin C y = 0.3656 - 0.0389 cos A + 0.0799 sin A - 0.0004 cos C + 0.0185 sin C UT1-UTC = -0.0248 - 0.00136 (MJD - 57444) - (UT2-UT1) where A = 2*pi*(MJD-57436)/365.25 and C = 2*pi*(MJD-57436)/435. TAI-UTC(MJD 57437) = 36.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-57436)**0.80 S t = 0.00025 (MJD-57436)**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) 2016 2 19 57437 -0.0170 0.3320 -0.00212 2016 2 20 57438 -0.0180 0.3338 -0.00348 2016 2 21 57439 -0.0187 0.3356 -0.00492 2016 2 22 57440 -0.0193 0.3375 -0.00647 2016 2 23 57441 -0.0198 0.3393 -0.00811 2016 2 24 57442 -0.0202 0.3411 -0.00980 2016 2 25 57443 -0.0206 0.3428 -0.01155 2016 2 26 57444 -0.0210 0.3445 -0.01332 2016 2 27 57445 -0.0213 0.3462 -0.01505 2016 2 28 57446 -0.0215 0.3479 -0.01673 2016 2 29 57447 -0.0217 0.3497 -0.01832 2016 3 1 57448 -0.0219 0.3514 -0.01983 2016 3 2 57449 -0.0220 0.3532 -0.02126 2016 3 3 57450 -0.0220 0.3550 -0.02267 2016 3 4 57451 -0.0220 0.3568 -0.02412 2016 3 5 57452 -0.0220 0.3586 -0.02565 2016 3 6 57453 -0.0220 0.3605 -0.02735 2016 3 7 57454 -0.0219 0.3623 -0.02924 2016 3 8 57455 -0.0217 0.3642 -0.03133 2016 3 9 57456 -0.0216 0.3660 -0.03359 2016 3 10 57457 -0.0214 0.3678 -0.03595 2016 3 11 57458 -0.0212 0.3697 -0.03833 2016 3 12 57459 -0.0210 0.3715 -0.04065 2016 3 13 57460 -0.0207 0.3733 -0.04285 2016 3 14 57461 -0.0204 0.3752 -0.04491 2016 3 15 57462 -0.0201 0.3770 -0.04685 2016 3 16 57463 -0.0198 0.3788 -0.04871 2016 3 17 57464 -0.0194 0.3806 -0.05053 2016 3 18 57465 -0.0189 0.3824 -0.05236 2016 3 19 57466 -0.0185 0.3842 -0.05425 2016 3 20 57467 -0.0180 0.3860 -0.05623 2016 3 21 57468 -0.0175 0.3877 -0.05829 2016 3 22 57469 -0.0169 0.3895 -0.06044 2016 3 23 57470 -0.0164 0.3913 -0.06266 2016 3 24 57471 -0.0157 0.3930 -0.06490 2016 3 25 57472 -0.0151 0.3947 -0.06714 2016 3 26 57473 -0.0144 0.3965 -0.06934 2016 3 27 57474 -0.0137 0.3982 -0.07149 2016 3 28 57475 -0.0129 0.3999 -0.07355 2016 3 29 57476 -0.0122 0.4016 -0.07554 2016 3 30 57477 -0.0114 0.4033 -0.07748 2016 3 31 57478 -0.0105 0.4050 -0.07939 2016 4 1 57479 -0.0096 0.4066 -0.08134 2016 4 2 57480 -0.0087 0.4083 -0.08336 2016 4 3 57481 -0.0078 0.4099 -0.08551 2016 4 4 57482 -0.0068 0.4115 -0.08784 2016 4 5 57483 -0.0058 0.4131 -0.09036 2016 4 6 57484 -0.0048 0.4147 -0.09303 2016 4 7 57485 -0.0038 0.4163 -0.09578 2016 4 8 57486 -0.0027 0.4179 -0.09850 2016 4 9 57487 -0.0016 0.4194 -0.10111 2016 4 10 57488 -0.0005 0.4210 -0.10353 2016 4 11 57489 0.0007 0.4225 -0.10576 2016 4 12 57490 0.0019 0.4240 -0.10783 2016 4 13 57491 0.0031 0.4255 -0.10978 2016 4 14 57492 0.0044 0.4269 -0.11166 2016 4 15 57493 0.0056 0.4284 -0.11353 2016 4 16 57494 0.0069 0.4298 -0.11541 2016 4 17 57495 0.0083 0.4312 -0.11732 2016 4 18 57496 0.0096 0.4326 -0.11926 2016 4 19 57497 0.0110 0.4340 -0.12121 2016 4 20 57498 0.0124 0.4353 -0.12315 2016 4 21 57499 0.0138 0.4367 -0.12506 2016 4 22 57500 0.0153 0.4380 -0.12691 2016 4 23 57501 0.0167 0.4393 -0.12867 2016 4 24 57502 0.0182 0.4405 -0.13035 2016 4 25 57503 0.0197 0.4418 -0.13194 2016 4 26 57504 0.0213 0.4430 -0.13345 2016 4 27 57505 0.0228 0.4442 -0.13492 2016 4 28 57506 0.0244 0.4454 -0.13639 2016 4 29 57507 0.0260 0.4465 -0.13791 2016 4 30 57508 0.0277 0.4477 -0.13952 2016 5 1 57509 0.0293 0.4488 -0.14127 2016 5 2 57510 0.0310 0.4498 -0.14319 2016 5 3 57511 0.0327 0.4509 -0.14527 2016 5 4 57512 0.0344 0.4519 -0.14746 2016 5 5 57513 0.0361 0.4529 -0.14968 2016 5 6 57514 0.0378 0.4539 -0.15184 2016 5 7 57515 0.0396 0.4549 -0.15385 2016 5 8 57516 0.0414 0.4558 -0.15568 2016 5 9 57517 0.0432 0.4567 -0.15733 2016 5 10 57518 0.0450 0.4576 -0.15884 2016 5 11 57519 0.0468 0.4584 -0.16028 2016 5 12 57520 0.0486 0.4593 -0.16169 2016 5 13 57521 0.0505 0.4600 -0.16310 2016 5 14 57522 0.0524 0.4608 -0.16454 2016 5 15 57523 0.0543 0.4616 -0.16600 2016 5 16 57524 0.0562 0.4623 -0.16748 2016 5 17 57525 0.0581 0.4630 -0.16894 2016 5 18 57526 0.0600 0.4636 -0.17037 2016 5 19 57527 0.0619 0.4642 -0.17175 2016 5 20 57528 0.0639 0.4648 -0.17305 2016 5 21 57529 0.0658 0.4654 -0.17426 2016 5 22 57530 0.0678 0.4659 -0.17538 2016 5 23 57531 0.0698 0.4665 -0.17642 2016 5 24 57532 0.0717 0.4669 -0.17741 2016 5 25 57533 0.0737 0.4674 -0.17837 2016 5 26 57534 0.0757 0.4678 -0.17937 2016 5 27 57535 0.0777 0.4682 -0.18043 2016 5 28 57536 0.0797 0.4686 -0.18160 2016 5 29 57537 0.0818 0.4689 -0.18292 2016 5 30 57538 0.0838 0.4692 -0.18437 2016 5 31 57539 0.0858 0.4695 -0.18594 2016 6 1 57540 0.0879 0.4697 -0.18757 2016 6 2 57541 0.0899 0.4699 -0.18919 2016 6 3 57542 0.0919 0.4701 -0.19071 2016 6 4 57543 0.0940 0.4703 -0.19209 2016 6 5 57544 0.0960 0.4704 -0.19330 2016 6 6 57545 0.0981 0.4705 -0.19438 2016 6 7 57546 0.1001 0.4705 -0.19537 2016 6 8 57547 0.1022 0.4706 -0.19632 2016 6 9 57548 0.1042 0.4706 -0.19728 2016 6 10 57549 0.1063 0.4705 -0.19826 2016 6 11 57550 0.1083 0.4705 -0.19926 2016 6 12 57551 0.1104 0.4704 -0.20028 2016 6 13 57552 0.1124 0.4703 -0.20130 2016 6 14 57553 0.1145 0.4701 -0.20228 2016 6 15 57554 0.1165 0.4699 -0.20322 2016 6 16 57555 0.1185 0.4697 -0.20408 2016 6 17 57556 0.1206 0.4695 -0.20486 2016 6 18 57557 0.1226 0.4692 -0.20555 2016 6 19 57558 0.1246 0.4689 -0.20615 2016 6 20 57559 0.1266 0.4686 -0.20670 2016 6 21 57560 0.1286 0.4682 -0.20721 2016 6 22 57561 0.1306 0.4678 -0.20774 2016 6 23 57562 0.1326 0.4674 -0.20832 2016 6 24 57563 0.1346 0.4669 -0.20901 2016 6 25 57564 0.1366 0.4665 -0.20983 2016 6 26 57565 0.1386 0.4659 -0.21078 2016 6 27 57566 0.1405 0.4654 -0.21185 2016 6 28 57567 0.1425 0.4648 -0.21297 2016 6 29 57568 0.1444 0.4642 -0.21411 2016 6 30 57569 0.1463 0.4636 -0.21518 2016 7 1 57570 0.1482 0.4629 -0.21614 2016 7 2 57571 0.1501 0.4623 -0.21696 2016 7 3 57572 0.1520 0.4615 -0.21766 2016 7 4 57573 0.1539 0.4608 -0.21826 2016 7 5 57574 0.1557 0.4600 -0.21883 2016 7 6 57575 0.1576 0.4592 -0.21941 2016 7 7 57576 0.1594 0.4584 -0.22003 2016 7 8 57577 0.1612 0.4576 -0.22070 2016 7 9 57578 0.1630 0.4567 -0.22140 2016 7 10 57579 0.1648 0.4558 -0.22212 2016 7 11 57580 0.1665 0.4549 -0.22282 2016 7 12 57581 0.1683 0.4539 -0.22349 2016 7 13 57582 0.1700 0.4529 -0.22411 2016 7 14 57583 0.1717 0.4519 -0.22464 2016 7 15 57584 0.1734 0.4509 -0.22510 2016 7 16 57585 0.1750 0.4498 -0.22549 2016 7 17 57586 0.1767 0.4487 -0.22582 2016 7 18 57587 0.1783 0.4476 -0.22612 2016 7 19 57588 0.1799 0.4465 -0.22644 2016 7 20 57589 0.1815 0.4453 -0.22683 2016 7 21 57590 0.1831 0.4441 -0.22732 2016 7 22 57591 0.1846 0.4429 -0.22796 2016 7 23 57592 0.1861 0.4417 -0.22875 2016 7 24 57593 0.1876 0.4405 -0.22967 2016 7 25 57594 0.1891 0.4392 -0.23066 2016 7 26 57595 0.1905 0.4379 -0.23167 2016 7 27 57596 0.1920 0.4366 -0.23262 2016 7 28 57597 0.1933 0.4353 -0.23348 2016 7 29 57598 0.1947 0.4339 -0.23420 2016 7 30 57599 0.1961 0.4325 -0.23480 2016 7 31 57600 0.1974 0.4311 -0.23532 2016 8 1 57601 0.1987 0.4297 -0.23579 2016 8 2 57602 0.1999 0.4283 -0.23628 2016 8 3 57603 0.2012 0.4268 -0.23683 2016 8 4 57604 0.2024 0.4253 -0.23744 2016 8 5 57605 0.2036 0.4238 -0.23811 2016 8 6 57606 0.2047 0.4223 -0.23882 2016 8 7 57607 0.2059 0.4208 -0.23955 2016 8 8 57608 0.2070 0.4193 -0.24025 2016 8 9 57609 0.2081 0.4177 -0.24092 2016 8 10 57610 0.2091 0.4161 -0.24153 2016 8 11 57611 0.2101 0.4145 -0.24206 2016 8 12 57612 0.2111 0.4129 -0.24253 2016 8 13 57613 0.2120 0.4113 -0.24295 2016 8 14 57614 0.2130 0.4097 -0.24334 2016 8 15 57615 0.2139 0.4080 -0.24374 2016 8 16 57616 0.2147 0.4064 -0.24421 2016 8 17 57617 0.2156 0.4047 -0.24478 2016 8 18 57618 0.2164 0.4030 -0.24551 2016 8 19 57619 0.2171 0.4013 -0.24641 2016 8 20 57620 0.2179 0.3996 -0.24747 2016 8 21 57621 0.2186 0.3979 -0.24865 2016 8 22 57622 0.2193 0.3961 -0.24986 2016 8 23 57623 0.2199 0.3944 -0.25104 2016 8 24 57624 0.2205 0.3926 -0.25212 2016 8 25 57625 0.2211 0.3909 -0.25307 2016 8 26 57626 0.2216 0.3891 -0.25391 2016 8 27 57627 0.2221 0.3873 -0.25467 2016 8 28 57628 0.2226 0.3856 -0.25542 2016 8 29 57629 0.2231 0.3838 -0.25620 2016 8 30 57630 0.2235 0.3820 -0.25707 2016 8 31 57631 0.2239 0.3802 -0.25806 2016 9 1 57632 0.2242 0.3783 -0.25916 2016 9 2 57633 0.2245 0.3765 -0.26036 2016 9 3 57634 0.2248 0.3747 -0.26162 2016 9 4 57635 0.2250 0.3729 -0.26291 2016 9 5 57636 0.2253 0.3711 -0.26417 2016 9 6 57637 0.2254 0.3692 -0.26539 2016 9 7 57638 0.2256 0.3674 -0.26655 2016 9 8 57639 0.2257 0.3656 -0.26763 2016 9 9 57640 0.2258 0.3637 -0.26865 2016 9 10 57641 0.2258 0.3619 -0.26965 2016 9 11 57642 0.2258 0.3600 -0.27066 2016 9 12 57643 0.2258 0.3582 -0.27173 2016 9 13 57644 0.2258 0.3564 -0.27292 2016 9 14 57645 0.2257 0.3545 -0.27427 2016 9 15 57646 0.2255 0.3527 -0.27581 2016 9 16 57647 0.2254 0.3509 -0.27756 2016 9 17 57648 0.2252 0.3490 -0.27948 2016 9 18 57649 0.2250 0.3472 -0.28149 2016 9 19 57650 0.2247 0.3454 -0.28350 2016 9 20 57651 0.2244 0.3435 -0.28542 2016 9 21 57652 0.2241 0.3417 -0.28718 2016 9 22 57653 0.2237 0.3399 -0.28878 2016 9 23 57654 0.2233 0.3381 -0.29023 2016 9 24 57655 0.2229 0.3363 -0.29159 2016 9 25 57656 0.2225 0.3345 -0.29290 2016 9 26 57657 0.2220 0.3327 -0.29423 2016 9 27 57658 0.2214 0.3310 -0.29564 2016 9 28 57659 0.2209 0.3292 -0.29712 2016 9 29 57660 0.2203 0.3274 -0.29865 2016 9 30 57661 0.2197 0.3257 -0.30026 2016 10 1 57662 0.2190 0.3239 -0.30179 2016 10 2 57663 0.2184 0.3222 -0.30337 2016 10 3 57664 0.2176 0.3205 -0.30491 2016 10 4 57665 0.2169 0.3187 -0.30640 2016 10 5 57666 0.2161 0.3170 -0.30777 2016 10 6 57667 0.2153 0.3153 -0.30915 2016 10 7 57668 0.2145 0.3137 -0.31052 2016 10 8 57669 0.2136 0.3120 -0.31192 2016 10 9 57670 0.2127 0.3104 -0.31333 2016 10 10 57671 0.2118 0.3087 -0.31484 2016 10 11 57672 0.2108 0.3071 -0.31652 2016 10 12 57673 0.2098 0.3055 -0.31845 2016 10 13 57674 0.2088 0.3039 -0.32066 2016 10 14 57675 0.2078 0.3023 -0.32311 2016 10 15 57676 0.2067 0.3007 -0.32568 2016 10 16 57677 0.2056 0.2992 -0.32825 2016 10 17 57678 0.2045 0.2977 -0.33084 2016 10 18 57679 0.2033 0.2961 -0.33322 2016 10 19 57680 0.2021 0.2946 -0.33547 2016 10 20 57681 0.2009 0.2932 -0.33750 2016 10 21 57682 0.1997 0.2917 -0.33936 2016 10 22 57683 0.1984 0.2903 -0.34113 2016 10 23 57684 0.1971 0.2888 -0.34290 2016 10 24 57685 0.1958 0.2874 -0.34469 2016 10 25 57686 0.1945 0.2860 -0.34658 2016 10 26 57687 0.1931 0.2847 -0.34853 2016 10 27 57688 0.1918 0.2833 -0.35055 2016 10 28 57689 0.1903 0.2820 -0.35254 2016 10 29 57690 0.1889 0.2807 -0.35445 2016 10 30 57691 0.1875 0.2794 -0.35626 2016 10 31 57692 0.1860 0.2782 -0.35795 2016 11 1 57693 0.1845 0.2769 -0.35945 2016 11 2 57694 0.1830 0.2757 -0.36087 2016 11 3 57695 0.1814 0.2745 -0.36217 2016 11 4 57696 0.1798 0.2734 -0.36334 2016 11 5 57697 0.1783 0.2722 -0.36442 2016 11 6 57698 0.1767 0.2711 -0.36543 2016 11 7 57699 0.1750 0.2700 -0.36649 2016 11 8 57700 0.1734 0.2689 -0.36775 2016 11 9 57701 0.1717 0.2679 -0.36906 2016 11 10 57702 0.1700 0.2669 -0.37062 2016 11 11 57703 0.1684 0.2659 -0.37236 2016 11 12 57704 0.1666 0.2649 -0.37422 2016 11 13 57705 0.1649 0.2639 -0.37612 2016 11 14 57706 0.1632 0.2630 -0.37799 2016 11 15 57707 0.1614 0.2621 -0.37983 2016 11 16 57708 0.1596 0.2613 -0.38154 2016 11 17 57709 0.1578 0.2604 -0.38306 2016 11 18 57710 0.1560 0.2596 -0.38449 2016 11 19 57711 0.1542 0.2588 -0.38586 2016 11 20 57712 0.1524 0.2581 -0.38726 2016 11 21 57713 0.1505 0.2573 -0.38864 2016 11 22 57714 0.1487 0.2566 -0.39006 2016 11 23 57715 0.1468 0.2560 -0.39149 2016 11 24 57716 0.1449 0.2553 -0.39296 2016 11 25 57717 0.1430 0.2547 -0.39440 2016 11 26 57718 0.1411 0.2541 -0.39584 2016 11 27 57719 0.1392 0.2536 -0.39717 2016 11 28 57720 0.1373 0.2530 -0.39847 2016 11 29 57721 0.1354 0.2525 -0.39967 2016 11 30 57722 0.1334 0.2520 -0.40082 2016 12 1 57723 0.1315 0.2516 -0.40197 2016 12 2 57724 0.1296 0.2512 -0.40317 2016 12 3 57725 0.1276 0.2508 -0.40439 2016 12 4 57726 0.1256 0.2504 -0.40573 2016 12 5 57727 0.1237 0.2501 -0.40716 2016 12 6 57728 0.1217 0.2498 -0.40869 2016 12 7 57729 0.1197 0.2496 -0.41034 2016 12 8 57730 0.1178 0.2493 -0.41215 2016 12 9 57731 0.1158 0.2491 -0.41402 2016 12 10 57732 0.1138 0.2489 -0.41593 2016 12 11 57733 0.1118 0.2488 -0.41782 2016 12 12 57734 0.1098 0.2487 -0.41960 2016 12 13 57735 0.1079 0.2486 -0.42121 2016 12 14 57736 0.1059 0.2485 -0.42260 2016 12 15 57737 0.1039 0.2485 -0.42385 2016 12 16 57738 0.1019 0.2485 -0.42500 2016 12 17 57739 0.0999 0.2485 -0.42614 2016 12 18 57740 0.0979 0.2486 -0.42722 2016 12 19 57741 0.0960 0.2487 -0.42831 2016 12 20 57742 0.0940 0.2488 -0.42943 2016 12 21 57743 0.0920 0.2489 -0.43056 2016 12 22 57744 0.0901 0.2491 -0.43167 2016 12 23 57745 0.0881 0.2493 -0.43280 2016 12 24 57746 0.0862 0.2496 -0.43388 2016 12 25 57747 0.0842 0.2498 -0.43486 2016 12 26 57748 0.0823 0.2501 -0.43577 2016 12 27 57749 0.0803 0.2504 -0.43657 2016 12 28 57750 0.0784 0.2508 -0.43728 2016 12 29 57751 0.0765 0.2512 -0.43794 2016 12 30 57752 0.0746 0.2516 -0.43847 2016 12 31 57753 0.0727 0.2520 -0.43899 2017 1 1 57754 0.0708 0.2525 -0.43957 2017 1 2 57755 0.0689 0.2530 -0.44021 2017 1 3 57756 0.0671 0.2535 -0.44104 2017 1 4 57757 0.0652 0.2541 -0.44201 2017 1 5 57758 0.0634 0.2547 -0.44318 2017 1 6 57759 0.0615 0.2553 -0.44440 2017 1 7 57760 0.0597 0.2559 -0.44575 2017 1 8 57761 0.0579 0.2566 -0.44709 2017 1 9 57762 0.0561 0.2573 -0.44835 2017 1 10 57763 0.0543 0.2580 -0.44955 2017 1 11 57764 0.0526 0.2587 -0.45070 2017 1 12 57765 0.0508 0.2595 -0.45179 2017 1 13 57766 0.0491 0.2603 -0.45279 2017 1 14 57767 0.0474 0.2611 -0.45378 2017 1 15 57768 0.0457 0.2620 -0.45479 2017 1 16 57769 0.0440 0.2628 -0.45575 2017 1 17 57770 0.0423 0.2637 -0.45668 2017 1 18 57771 0.0407 0.2647 -0.45754 2017 1 19 57772 0.0391 0.2656 -0.45831 2017 1 20 57773 0.0375 0.2666 -0.45906 2017 1 21 57774 0.0359 0.2676 -0.45980 2017 1 22 57775 0.0343 0.2686 -0.46053 2017 1 23 57776 0.0328 0.2697 -0.46128 2017 1 24 57777 0.0312 0.2707 -0.46201 2017 1 25 57778 0.0297 0.2718 -0.46274 2017 1 26 57779 0.0283 0.2729 -0.46355 2017 1 27 57780 0.0268 0.2741 -0.46443 2017 1 28 57781 0.0254 0.2752 -0.46541 2017 1 29 57782 0.0239 0.2764 -0.46663 2017 1 30 57783 0.0226 0.2776 -0.46797 2017 1 31 57784 0.0212 0.2788 -0.46945 2017 2 1 57785 0.0198 0.2801 -0.47098 2017 2 2 57786 0.0185 0.2813 -0.47261 2017 2 3 57787 0.0172 0.2826 -0.47423 2017 2 4 57788 0.0160 0.2839 -0.47573 2017 2 5 57789 0.0147 0.2853 -0.47719 2017 2 6 57790 0.0135 0.2866 -0.47852 2017 2 7 57791 0.0123 0.2880 -0.47977 2017 2 8 57792 0.0111 0.2893 -0.48100 2017 2 9 57793 0.0100 0.2907 -0.48228 2017 2 10 57794 0.0089 0.2921 -0.48354 2017 2 11 57795 0.0078 0.2936 -0.48490 2017 2 12 57796 0.0068 0.2950 -0.48630 2017 2 13 57797 0.0057 0.2965 -0.48769 2017 2 14 57798 0.0047 0.2979 -0.48906 2017 2 15 57799 0.0038 0.2994 -0.49030 2017 2 16 57800 0.0028 0.3009 -0.49141 2017 2 17 57801 0.0019 0.3024 -0.49245 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) 57408 -94.58 0.30 -9.63 0.03 57409 -94.43 0.30 -9.65 0.03 57410 -94.19 0.30 -9.52 0.08 57411 -94.01 0.30 -9.39 0.15 57412 -93.94 0.30 -9.40 0.04 57413 -93.86 0.30 -9.57 0.04 57414 -93.74 0.30 -9.78 0.04 57415 -93.69 0.30 -9.90 0.04 57416 -93.82 0.30 -9.94 0.04 57417 -94.08 0.30 -9.96 0.04 57418 -94.34 0.30 -10.03 0.03 57419 -94.53 0.30 -10.11 0.03 57420 -94.67 0.30 -10.14 0.03 57421 -94.75 0.30 -10.04 0.03 57422 -94.67 0.30 -9.86 0.03 57423 -94.51 0.30 -9.78 0.03 57424 -94.39 0.30 -9.93 0.15 57425 -94.38 0.11 -10.24 0.15 57426 -94.32 0.11 -10.46 0.15 57427 -94.14 0.11 -10.40 0.15 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 57408 -0.080 0.119 -0.090 0.030 57409 -0.079 0.119 -0.117 0.030 57410 -0.070 0.119 -0.123 0.080 57411 -0.047 0.119 -0.123 0.150 57412 -0.033 0.119 -0.126 0.040 57413 -0.026 0.119 -0.140 0.040 57414 -0.027 0.119 -0.145 0.040 57415 -0.034 0.119 -0.115 0.040 57416 -0.049 0.119 -0.083 0.040 57417 -0.071 0.119 -0.056 0.040 57418 -0.094 0.119 -0.049 0.030 57419 -0.111 0.119 -0.045 0.030 57420 -0.121 0.119 -0.072 0.030 57421 -0.128 0.119 -0.108 0.030 57422 -0.116 0.119 -0.135 0.030 57423 -0.108 0.119 -0.155 0.030 57424 -0.104 0.119 -0.170 0.150 57425 -0.116 0.044 -0.186 0.150 57426 -0.129 0.044 -0.206 0.150 57427 -0.153 0.044 -0.229 0.150 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).