********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 3 March 2016 Vol. XXIX No. 009 ______________________________________________________________________ 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 = -0.1 seconds beginning 24 Mar 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 26 57444 -.02205 .00009 0.34634 .00009 -0.013426 0.000018 16 2 27 57445 -.02243 .00009 0.34846 .00009 -0.015220 0.000017 16 2 28 57446 -.02321 .00009 0.35074 .00009 -0.016986 0.000025 16 2 29 57447 -.02414 .00009 0.35278 .00009 -0.018722 0.000022 16 3 1 57448 -.02472 .00009 0.35442 .00009 -0.020380 0.000023 16 3 2 57449 -.02462 .00009 0.35600 .00009 -0.021904 0.000023 16 3 3 57450 -.02400 .00009 0.35779 .00009 -0.023526 0.000055 IERS Final Values MJD x y UT1-UTC " " s 16 1 2 57389 0.0489 0.2573 0.07961 16 1 3 57390 0.0471 0.2577 0.07769 16 1 4 57391 0.0457 0.2585 0.07576 16 1 5 57392 0.0442 0.2601 0.07384 16 1 6 57393 0.0423 0.2618 0.07196 16 1 7 57394 0.0406 0.2633 0.07010 16 1 8 57395 0.0396 0.2650 0.06831 16 1 9 57396 0.0380 0.2672 0.06657 16 1 10 57397 0.0359 0.2689 0.06479 16 1 11 57398 0.0342 0.2707 0.06296 16 1 12 57399 0.0327 0.2725 0.06104 16 1 13 57400 0.0311 0.2744 0.05900 16 1 14 57401 0.0295 0.2757 0.05683 16 1 15 57402 0.0283 0.2767 0.05463 16 1 16 57403 0.0267 0.2781 0.05248 16 1 17 57404 0.0251 0.2795 0.05039 16 1 18 57405 0.0233 0.2813 0.04841 16 1 19 57406 0.0213 0.2832 0.04651 16 1 20 57407 0.0190 0.2850 0.04472 16 1 21 57408 0.0165 0.2865 0.04311 16 1 22 57409 0.0139 0.2878 0.04157 16 1 23 57410 0.0110 0.2888 0.04003 16 1 24 57411 0.0085 0.2894 0.03841 16 1 25 57412 0.0068 0.2898 0.03682 16 1 26 57413 0.0057 0.2905 0.03520 16 1 27 57414 0.0047 0.2917 0.03358 16 1 28 57415 0.0035 0.2930 0.03200 16 1 29 57416 0.0023 0.2941 0.03046 16 1 30 57417 0.0009 0.2957 0.02894 16 1 31 57418 -0.0013 0.2975 0.02755 16 2 1 57419 -0.0033 0.2995 0.02627 _______________________________________________________________________ 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 = 0.0974 - 0.1087 cos A - 0.0278 sin A - 0.0173 cos C + 0.0145 sin C y = 0.3663 - 0.0260 cos A + 0.0931 sin A + 0.0145 cos C + 0.0173 sin C UT1-UTC = -0.0433 - 0.00138 (MJD - 57458) - (UT2-UT1) where A = 2*pi*(MJD-57450)/365.25 and C = 2*pi*(MJD-57450)/435. TAI-UTC(MJD 57451) = 36.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-57450)**0.80 S t = 0.00025 (MJD-57450)**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 3 4 57451 -0.0235 0.3597 -0.02521 2016 3 5 57452 -0.0228 0.3617 -0.02696 2016 3 6 57453 -0.0224 0.3638 -0.02884 2016 3 7 57454 -0.0222 0.3658 -0.03086 2016 3 8 57455 -0.0222 0.3677 -0.03302 2016 3 9 57456 -0.0220 0.3695 -0.03530 2016 3 10 57457 -0.0218 0.3713 -0.03765 2016 3 11 57458 -0.0215 0.3731 -0.04001 2016 3 12 57459 -0.0212 0.3750 -0.04230 2016 3 13 57460 -0.0209 0.3769 -0.04449 2016 3 14 57461 -0.0205 0.3787 -0.04658 2016 3 15 57462 -0.0201 0.3805 -0.04856 2016 3 16 57463 -0.0196 0.3824 -0.05042 2016 3 17 57464 -0.0192 0.3842 -0.05222 2016 3 18 57465 -0.0188 0.3861 -0.05401 2016 3 19 57466 -0.0183 0.3878 -0.05583 2016 3 20 57467 -0.0179 0.3896 -0.05769 2016 3 21 57468 -0.0173 0.3913 -0.05959 2016 3 22 57469 -0.0167 0.3931 -0.06151 2016 3 23 57470 -0.0161 0.3948 -0.06344 2016 3 24 57471 -0.0154 0.3966 -0.06536 2016 3 25 57472 -0.0147 0.3983 -0.06725 2016 3 26 57473 -0.0140 0.4001 -0.06910 2016 3 27 57474 -0.0133 0.4018 -0.07091 2016 3 28 57475 -0.0125 0.4035 -0.07265 2016 3 29 57476 -0.0117 0.4051 -0.07432 2016 3 30 57477 -0.0109 0.4068 -0.07595 2016 3 31 57478 -0.0100 0.4085 -0.07755 2016 4 1 57479 -0.0091 0.4101 -0.07919 2016 4 2 57480 -0.0081 0.4118 -0.08093 2016 4 3 57481 -0.0072 0.4134 -0.08282 2016 4 4 57482 -0.0062 0.4150 -0.08492 2016 4 5 57483 -0.0051 0.4166 -0.08723 2016 4 6 57484 -0.0041 0.4182 -0.08972 2016 4 7 57485 -0.0030 0.4197 -0.09231 2016 4 8 57486 -0.0019 0.4213 -0.09490 2016 4 9 57487 -0.0007 0.4228 -0.09740 2016 4 10 57488 0.0004 0.4243 -0.09974 2016 4 11 57489 0.0016 0.4258 -0.10193 2016 4 12 57490 0.0028 0.4273 -0.10399 2016 4 13 57491 0.0041 0.4288 -0.10598 2016 4 14 57492 0.0054 0.4302 -0.10795 2016 4 15 57493 0.0067 0.4316 -0.10994 2016 4 16 57494 0.0080 0.4331 -0.11196 2016 4 17 57495 0.0094 0.4344 -0.11403 2016 4 18 57496 0.0107 0.4358 -0.11613 2016 4 19 57497 0.0121 0.4371 -0.11824 2016 4 20 57498 0.0136 0.4385 -0.12035 2016 4 21 57499 0.0150 0.4398 -0.12243 2016 4 22 57500 0.0165 0.4411 -0.12444 2016 4 23 57501 0.0180 0.4423 -0.12638 2016 4 24 57502 0.0195 0.4436 -0.12822 2016 4 25 57503 0.0211 0.4448 -0.12998 2016 4 26 57504 0.0226 0.4460 -0.13166 2016 4 27 57505 0.0242 0.4471 -0.13331 2016 4 28 57506 0.0258 0.4483 -0.13495 2016 4 29 57507 0.0275 0.4494 -0.13663 2016 4 30 57508 0.0291 0.4505 -0.13841 2016 5 1 57509 0.0308 0.4516 -0.14033 2016 5 2 57510 0.0325 0.4526 -0.14240 2016 5 3 57511 0.0342 0.4536 -0.14463 2016 5 4 57512 0.0359 0.4546 -0.14695 2016 5 5 57513 0.0377 0.4556 -0.14929 2016 5 6 57514 0.0394 0.4566 -0.15155 2016 5 7 57515 0.0412 0.4575 -0.15366 2016 5 8 57516 0.0430 0.4584 -0.15557 2016 5 9 57517 0.0448 0.4592 -0.15731 2016 5 10 57518 0.0467 0.4601 -0.15890 2016 5 11 57519 0.0485 0.4609 -0.16041 2016 5 12 57520 0.0504 0.4617 -0.16189 2016 5 13 57521 0.0523 0.4624 -0.16337 2016 5 14 57522 0.0541 0.4631 -0.16487 2016 5 15 57523 0.0560 0.4638 -0.16637 2016 5 16 57524 0.0580 0.4645 -0.16789 2016 5 17 57525 0.0599 0.4652 -0.16938 2016 5 18 57526 0.0618 0.4658 -0.17085 2016 5 19 57527 0.0638 0.4664 -0.17226 2016 5 20 57528 0.0657 0.4669 -0.17358 2016 5 21 57529 0.0677 0.4674 -0.17481 2016 5 22 57530 0.0697 0.4679 -0.17595 2016 5 23 57531 0.0717 0.4684 -0.17701 2016 5 24 57532 0.0737 0.4689 -0.17801 2016 5 25 57533 0.0757 0.4693 -0.17898 2016 5 26 57534 0.0777 0.4696 -0.17996 2016 5 27 57535 0.0797 0.4700 -0.18102 2016 5 28 57536 0.0817 0.4703 -0.18218 2016 5 29 57537 0.0837 0.4706 -0.18347 2016 5 30 57538 0.0858 0.4709 -0.18491 2016 5 31 57539 0.0878 0.4711 -0.18645 2016 6 1 57540 0.0898 0.4713 -0.18805 2016 6 2 57541 0.0919 0.4715 -0.18963 2016 6 3 57542 0.0939 0.4716 -0.19112 2016 6 4 57543 0.0960 0.4717 -0.19246 2016 6 5 57544 0.0980 0.4718 -0.19363 2016 6 6 57545 0.1001 0.4718 -0.19466 2016 6 7 57546 0.1021 0.4718 -0.19560 2016 6 8 57547 0.1042 0.4718 -0.19650 2016 6 9 57548 0.1062 0.4718 -0.19741 2016 6 10 57549 0.1083 0.4717 -0.19834 2016 6 11 57550 0.1103 0.4716 -0.19929 2016 6 12 57551 0.1124 0.4715 -0.20026 2016 6 13 57552 0.1144 0.4713 -0.20123 2016 6 14 57553 0.1165 0.4711 -0.20217 2016 6 15 57554 0.1185 0.4709 -0.20307 2016 6 16 57555 0.1205 0.4706 -0.20389 2016 6 17 57556 0.1225 0.4703 -0.20463 2016 6 18 57557 0.1246 0.4700 -0.20529 2016 6 19 57558 0.1266 0.4696 -0.20586 2016 6 20 57559 0.1286 0.4693 -0.20638 2016 6 21 57560 0.1306 0.4688 -0.20688 2016 6 22 57561 0.1326 0.4684 -0.20739 2016 6 23 57562 0.1345 0.4679 -0.20796 2016 6 24 57563 0.1365 0.4674 -0.20864 2016 6 25 57564 0.1385 0.4669 -0.20944 2016 6 26 57565 0.1404 0.4664 -0.21038 2016 6 27 57566 0.1424 0.4658 -0.21143 2016 6 28 57567 0.1443 0.4652 -0.21254 2016 6 29 57568 0.1462 0.4645 -0.21366 2016 6 30 57569 0.1481 0.4638 -0.21471 2016 7 1 57570 0.1500 0.4631 -0.21566 2016 7 2 57571 0.1519 0.4624 -0.21646 2016 7 3 57572 0.1538 0.4616 -0.21714 2016 7 4 57573 0.1556 0.4609 -0.21772 2016 7 5 57574 0.1575 0.4600 -0.21827 2016 7 6 57575 0.1593 0.4592 -0.21883 2016 7 7 57576 0.1611 0.4583 -0.21943 2016 7 8 57577 0.1629 0.4574 -0.22008 2016 7 9 57578 0.1646 0.4565 -0.22076 2016 7 10 57579 0.1664 0.4556 -0.22146 2016 7 11 57580 0.1681 0.4546 -0.22215 2016 7 12 57581 0.1698 0.4536 -0.22280 2016 7 13 57582 0.1715 0.4526 -0.22340 2016 7 14 57583 0.1732 0.4515 -0.22392 2016 7 15 57584 0.1749 0.4504 -0.22437 2016 7 16 57585 0.1765 0.4493 -0.22474 2016 7 17 57586 0.1781 0.4482 -0.22507 2016 7 18 57587 0.1797 0.4471 -0.22537 2016 7 19 57588 0.1813 0.4459 -0.22568 2016 7 20 57589 0.1829 0.4447 -0.22606 2016 7 21 57590 0.1844 0.4435 -0.22655 2016 7 22 57591 0.1859 0.4422 -0.22718 2016 7 23 57592 0.1874 0.4410 -0.22798 2016 7 24 57593 0.1889 0.4397 -0.22890 2016 7 25 57594 0.1903 0.4384 -0.22990 2016 7 26 57595 0.1917 0.4370 -0.23092 2016 7 27 57596 0.1931 0.4357 -0.23189 2016 7 28 57597 0.1945 0.4343 -0.23277 2016 7 29 57598 0.1958 0.4329 -0.23352 2016 7 30 57599 0.1971 0.4315 -0.23416 2016 7 31 57600 0.1984 0.4301 -0.23472 2016 8 1 57601 0.1997 0.4286 -0.23524 2016 8 2 57602 0.2009 0.4272 -0.23579 2016 8 3 57603 0.2021 0.4257 -0.23640 2016 8 4 57604 0.2033 0.4242 -0.23708 2016 8 5 57605 0.2044 0.4227 -0.23782 2016 8 6 57606 0.2055 0.4211 -0.23861 2016 8 7 57607 0.2066 0.4196 -0.23941 2016 8 8 57608 0.2077 0.4180 -0.24020 2016 8 9 57609 0.2087 0.4164 -0.24095 2016 8 10 57610 0.2097 0.4148 -0.24164 2016 8 11 57611 0.2107 0.4132 -0.24227 2016 8 12 57612 0.2116 0.4115 -0.24283 2016 8 13 57613 0.2125 0.4099 -0.24335 2016 8 14 57614 0.2134 0.4082 -0.24384 2016 8 15 57615 0.2143 0.4066 -0.24436 2016 8 16 57616 0.2151 0.4049 -0.24494 2016 8 17 57617 0.2159 0.4032 -0.24563 2016 8 18 57618 0.2167 0.4015 -0.24648 2016 8 19 57619 0.2174 0.3997 -0.24751 2016 8 20 57620 0.2181 0.3980 -0.24870 2016 8 21 57621 0.2187 0.3963 -0.25002 2016 8 22 57622 0.2194 0.3945 -0.25137 2016 8 23 57623 0.2200 0.3928 -0.25269 2016 8 24 57624 0.2205 0.3910 -0.25390 2016 8 25 57625 0.2211 0.3892 -0.25498 2016 8 26 57626 0.2216 0.3874 -0.25593 2016 8 27 57627 0.2220 0.3856 -0.25677 2016 8 28 57628 0.2225 0.3838 -0.25756 2016 8 29 57629 0.2229 0.3820 -0.25835 2016 8 30 57630 0.2232 0.3802 -0.25919 2016 8 31 57631 0.2236 0.3784 -0.26009 2016 9 1 57632 0.2239 0.3766 -0.26106 2016 9 2 57633 0.2241 0.3747 -0.26208 2016 9 3 57634 0.2244 0.3729 -0.26311 2016 9 4 57635 0.2246 0.3711 -0.26413 2016 9 5 57636 0.2247 0.3692 -0.26511 2016 9 6 57637 0.2248 0.3674 -0.26602 2016 9 7 57638 0.2249 0.3656 -0.26685 2016 9 8 57639 0.2250 0.3637 -0.26760 2016 9 9 57640 0.2250 0.3619 -0.26830 2016 9 10 57641 0.2250 0.3600 -0.26898 2016 9 11 57642 0.2250 0.3582 -0.26969 2016 9 12 57643 0.2249 0.3564 -0.27048 2016 9 13 57644 0.2248 0.3545 -0.27141 2016 9 14 57645 0.2247 0.3527 -0.27253 2016 9 15 57646 0.2245 0.3508 -0.27388 2016 9 16 57647 0.2243 0.3490 -0.27545 2016 9 17 57648 0.2241 0.3472 -0.27723 2016 9 18 57649 0.2238 0.3454 -0.27914 2016 9 19 57650 0.2235 0.3435 -0.28109 2016 9 20 57651 0.2231 0.3417 -0.28298 2016 9 21 57652 0.2228 0.3399 -0.28476 2016 9 22 57653 0.2224 0.3381 -0.28641 2016 9 23 57654 0.2219 0.3363 -0.28796 2016 9 24 57655 0.2214 0.3345 -0.28943 2016 9 25 57656 0.2209 0.3327 -0.29089 2016 9 26 57657 0.2204 0.3309 -0.29237 2016 9 27 57658 0.2198 0.3292 -0.29390 2016 9 28 57659 0.2192 0.3274 -0.29549 2016 9 29 57660 0.2186 0.3257 -0.29715 2016 9 30 57661 0.2179 0.3239 -0.29884 2016 10 1 57662 0.2172 0.3222 -0.30053 2016 10 2 57663 0.2165 0.3205 -0.30220 2016 10 3 57664 0.2157 0.3188 -0.30381 2016 10 4 57665 0.2149 0.3171 -0.30536 2016 10 5 57666 0.2141 0.3154 -0.30687 2016 10 6 57667 0.2133 0.3137 -0.30834 2016 10 7 57668 0.2124 0.3121 -0.30979 2016 10 8 57669 0.2115 0.3104 -0.31124 2016 10 9 57670 0.2105 0.3088 -0.31271 2016 10 10 57671 0.2096 0.3072 -0.31425 2016 10 11 57672 0.2086 0.3056 -0.31591 2016 10 12 57673 0.2075 0.3040 -0.31773 2016 10 13 57674 0.2065 0.3024 -0.31977 2016 10 14 57675 0.2054 0.3009 -0.32199 2016 10 15 57676 0.2043 0.2993 -0.32433 2016 10 16 57677 0.2031 0.2978 -0.32680 2016 10 17 57678 0.2019 0.2963 -0.32916 2016 10 18 57679 0.2008 0.2948 -0.33138 2016 10 19 57680 0.1995 0.2933 -0.33344 2016 10 20 57681 0.1983 0.2919 -0.33532 2016 10 21 57682 0.1970 0.2905 -0.33708 2016 10 22 57683 0.1957 0.2891 -0.33875 2016 10 23 57684 0.1944 0.2877 -0.34039 2016 10 24 57685 0.1930 0.2863 -0.34203 2016 10 25 57686 0.1916 0.2849 -0.34377 2016 10 26 57687 0.1902 0.2836 -0.34554 2016 10 27 57688 0.1888 0.2823 -0.34733 2016 10 28 57689 0.1874 0.2810 -0.34916 2016 10 29 57690 0.1859 0.2798 -0.35088 2016 10 30 57691 0.1844 0.2785 -0.35262 2016 10 31 57692 0.1829 0.2773 -0.35429 2016 11 1 57693 0.1814 0.2761 -0.35589 2016 11 2 57694 0.1798 0.2749 -0.35737 2016 11 3 57695 0.1782 0.2738 -0.35884 2016 11 4 57696 0.1766 0.2727 -0.36030 2016 11 5 57697 0.1750 0.2716 -0.36180 2016 11 6 57698 0.1734 0.2705 -0.36333 2016 11 7 57699 0.1717 0.2694 -0.36496 2016 11 8 57700 0.1700 0.2684 -0.36677 2016 11 9 57701 0.1683 0.2674 -0.36883 2016 11 10 57702 0.1666 0.2664 -0.37114 2016 11 11 57703 0.1649 0.2655 -0.37367 2016 11 12 57704 0.1632 0.2646 -0.37628 2016 11 13 57705 0.1614 0.2637 -0.37884 2016 11 14 57706 0.1596 0.2628 -0.38139 2016 11 15 57707 0.1578 0.2620 -0.38370 2016 11 16 57708 0.1560 0.2612 -0.38589 2016 11 17 57709 0.1542 0.2604 -0.38787 2016 11 18 57710 0.1524 0.2596 -0.38971 2016 11 19 57711 0.1505 0.2589 -0.39148 2016 11 20 57712 0.1487 0.2582 -0.39326 2016 11 21 57713 0.1468 0.2575 -0.39506 2016 11 22 57714 0.1449 0.2568 -0.39694 2016 11 23 57715 0.1431 0.2562 -0.39886 2016 11 24 57716 0.1412 0.2556 -0.40081 2016 11 25 57717 0.1392 0.2551 -0.40269 2016 11 26 57718 0.1373 0.2545 -0.40445 2016 11 27 57719 0.1354 0.2540 -0.40609 2016 11 28 57720 0.1335 0.2536 -0.40760 2016 11 29 57721 0.1315 0.2531 -0.40890 2016 11 30 57722 0.1296 0.2527 -0.41012 2016 12 1 57723 0.1276 0.2523 -0.41124 2016 12 2 57724 0.1257 0.2520 -0.41223 2016 12 3 57725 0.1237 0.2516 -0.41316 2016 12 4 57726 0.1217 0.2513 -0.41403 2016 12 5 57727 0.1197 0.2511 -0.41496 2016 12 6 57728 0.1178 0.2508 -0.41611 2016 12 7 57729 0.1158 0.2506 -0.41730 2016 12 8 57730 0.1138 0.2504 -0.41869 2016 12 9 57731 0.1118 0.2503 -0.42023 2016 12 10 57732 0.1098 0.2502 -0.42184 2016 12 11 57733 0.1078 0.2501 -0.42344 2016 12 12 57734 0.1058 0.2500 -0.42499 2016 12 13 57735 0.1039 0.2500 -0.42652 2016 12 14 57736 0.1019 0.2500 -0.42794 2016 12 15 57737 0.0999 0.2500 -0.42922 2016 12 16 57738 0.0979 0.2501 -0.43045 2016 12 17 57739 0.0959 0.2502 -0.43165 2016 12 18 57740 0.0939 0.2503 -0.43291 2016 12 19 57741 0.0920 0.2505 -0.43416 2016 12 20 57742 0.0900 0.2506 -0.43544 2016 12 21 57743 0.0880 0.2509 -0.43671 2016 12 22 57744 0.0861 0.2511 -0.43799 2016 12 23 57745 0.0841 0.2514 -0.43922 2016 12 24 57746 0.0822 0.2517 -0.44043 2016 12 25 57747 0.0802 0.2520 -0.44151 2016 12 26 57748 0.0783 0.2524 -0.44257 2016 12 27 57749 0.0764 0.2527 -0.44352 2016 12 28 57750 0.0744 0.2532 -0.44445 2016 12 29 57751 0.0725 0.2536 -0.44540 2016 12 30 57752 0.0706 0.2541 -0.44644 2016 12 31 57753 0.0688 0.2546 -0.44753 2017 1 1 57754 0.0669 0.2551 -0.44878 2017 1 2 57755 0.0650 0.2557 -0.45014 2017 1 3 57756 0.0632 0.2563 -0.45162 2017 1 4 57757 0.0613 0.2569 -0.45320 2017 1 5 57758 0.0595 0.2575 -0.45490 2017 1 6 57759 0.0577 0.2582 -0.45662 2017 1 7 57760 0.0559 0.2589 -0.45831 2017 1 8 57761 0.0541 0.2596 -0.45996 2017 1 9 57762 0.0523 0.2604 -0.46148 2017 1 10 57763 0.0506 0.2611 -0.46285 2017 1 11 57764 0.0488 0.2620 -0.46404 2017 1 12 57765 0.0471 0.2628 -0.46516 2017 1 13 57766 0.0454 0.2636 -0.46622 2017 1 14 57767 0.0437 0.2645 -0.46732 2017 1 15 57768 0.0420 0.2654 -0.46840 2017 1 16 57769 0.0404 0.2664 -0.46949 2017 1 17 57770 0.0387 0.2673 -0.47061 2017 1 18 57771 0.0371 0.2683 -0.47174 2017 1 19 57772 0.0355 0.2693 -0.47284 2017 1 20 57773 0.0339 0.2704 -0.47393 2017 1 21 57774 0.0324 0.2714 -0.47497 2017 1 22 57775 0.0308 0.2725 -0.47591 2017 1 23 57776 0.0293 0.2736 -0.47678 2017 1 24 57777 0.0278 0.2747 -0.47757 2017 1 25 57778 0.0264 0.2759 -0.47829 2017 1 26 57779 0.0249 0.2770 -0.47900 2017 1 27 57780 0.0235 0.2782 -0.47964 2017 1 28 57781 0.0221 0.2794 -0.48030 2017 1 29 57782 0.0207 0.2807 -0.48105 2017 1 30 57783 0.0193 0.2819 -0.48191 2017 1 31 57784 0.0180 0.2832 -0.48296 2017 2 1 57785 0.0167 0.2845 -0.48414 2017 2 2 57786 0.0154 0.2858 -0.48547 2017 2 3 57787 0.0142 0.2871 -0.48680 2017 2 4 57788 0.0129 0.2885 -0.48820 2017 2 5 57789 0.0117 0.2899 -0.48955 2017 2 6 57790 0.0106 0.2912 -0.49082 2017 2 7 57791 0.0094 0.2926 -0.49206 2017 2 8 57792 0.0083 0.2941 -0.49329 2017 2 9 57793 0.0072 0.2955 -0.49450 2017 2 10 57794 0.0061 0.2970 -0.49568 2017 2 11 57795 0.0051 0.2984 -0.49687 2017 2 12 57796 0.0041 0.2999 -0.49811 2017 2 13 57797 0.0031 0.3014 -0.49930 2017 2 14 57798 0.0021 0.3029 -0.50046 2017 2 15 57799 0.0012 0.3045 -0.50154 2017 2 16 57800 0.0003 0.3060 -0.50252 2017 2 17 57801 -0.0005 0.3076 -0.50346 2017 2 18 57802 -0.0014 0.3091 -0.50439 2017 2 19 57803 -0.0022 0.3107 -0.50531 2017 2 20 57804 -0.0030 0.3123 -0.50626 2017 2 21 57805 -0.0037 0.3139 -0.50720 2017 2 22 57806 -0.0044 0.3155 -0.50819 2017 2 23 57807 -0.0051 0.3172 -0.50927 2017 2 24 57808 -0.0058 0.3188 -0.51047 2017 2 25 57809 -0.0064 0.3205 -0.51181 2017 2 26 57810 -0.0070 0.3221 -0.51342 2017 2 27 57811 -0.0075 0.3238 -0.51517 2017 2 28 57812 -0.0081 0.3254 -0.51705 2017 3 1 57813 -0.0086 0.3271 -0.51897 2017 3 2 57814 -0.0090 0.3288 -0.52093 2017 3 3 57815 -0.0095 0.3305 -0.52283 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) 57428 -93.92 0.30 -9.99 0.04 57429 -93.82 0.30 -9.75 0.04 57430 -93.93 0.30 -9.75 0.04 57431 -94.14 0.30 -9.92 0.09 57432 -94.33 0.30 -10.13 0.04 57433 -94.44 0.30 -10.29 0.04 57434 -94.50 0.30 -10.43 0.04 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 57389 -93.9 -9.5 57390 -94.0 -9.5 57391 -94.0 -9.5 57392 -94.1 -9.4 57393 -94.1 -9.3 57394 -94.2 -9.1 57395 -94.2 -9.2 57396 -94.1 -9.5 57397 -93.9 -9.7 57398 -93.6 -9.8 57399 -93.4 -9.6 57400 -93.4 -9.4 57401 -93.5 -9.2 57402 -93.6 -9.1 57403 -93.7 -9.1 57404 -93.8 -9.2 57405 -94.0 -9.2 57406 -94.3 -9.3 57407 -94.6 -9.6 57408 -94.7 -9.8 57409 -94.5 -9.8 57410 -94.3 -9.6 57411 -94.1 -9.5 57412 -94.1 -9.5 57413 -94.0 -9.6 57414 -93.8 -9.8 57415 -93.7 -10.0 57416 -93.7 -10.1 57417 -94.0 -10.1 57418 -94.3 -10.2 57419 -94.5 -10.2 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 57428 -0.184 0.119 -0.106 0.040 57429 -0.201 0.119 -0.095 0.040 57430 -0.207 0.119 -0.092 0.040 57431 -0.198 0.119 -0.080 0.090 57432 -0.187 0.119 -0.081 0.040 57433 -0.173 0.119 -0.075 0.040 57434 -0.158 0.119 -0.072 0.040 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 57389 -0.18 -0.11 57390 -0.16 -0.13 57391 -0.11 -0.14 57392 -0.12 -0.14 57393 -0.10 -0.21 57394 -0.11 -0.13 57395 -0.10 -0.17 57396 -0.09 -0.23 57397 -0.10 -0.18 57398 -0.08 -0.22 57399 -0.07 -0.21 57400 -0.08 -0.30 57401 -0.07 -0.30 57402 -0.08 -0.23 57403 -0.10 -0.17 57404 -0.12 -0.21 57405 -0.12 -0.14 57406 -0.12 -0.10 57407 -0.12 -0.21 57408 -0.13 -0.26 57409 -0.11 -0.27 57410 -0.11 -0.20 57411 -0.08 -0.23 57412 -0.10 -0.23 57413 -0.08 -0.17 57414 -0.05 -0.16 57415 -0.04 -0.21 57416 0.00 -0.24 57417 -0.04 -0.20 57418 -0.08 -0.22 57419 -0.10 -0.14 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).