********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 28 January 2016 Vol. XXIX No. 004 ______________________________________________________________________ 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 26 Nov 2015 at 0000 UTC = +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 1 22 57409 0.01385 .00009 0.28772 .00009 0.041414 0.000035 16 1 23 57410 0.01113 .00009 0.28874 .00009 0.039905 0.000037 16 1 24 57411 0.00870 .00009 0.28935 .00009 0.038367 0.000031 16 1 25 57412 0.00692 .00009 0.28985 .00009 0.036746 0.000026 16 1 26 57413 0.00570 .00009 0.29060 .00009 0.035072 0.000065 16 1 27 57414 0.00464 .00009 0.29171 .00010 0.033421 0.000065 16 1 28 57415 0.00348 .00009 0.29304 .00009 0.031831 0.000055 _______________________________________________________________________ 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 = 0.0884 - 0.0680 cos A - 0.0602 sin A - 0.0168 cos C - 0.0191 sin C y = 0.3625 - 0.0547 cos A + 0.0548 sin A - 0.0191 cos C + 0.0168 sin C UT1-UTC = -0.0011 - 0.00134 (MJD - 57423) - (UT2-UT1) where A = 2*pi*(MJD-57415)/365.25 and C = 2*pi*(MJD-57415)/435. TAI-UTC(MJD 57416) = 36.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-57415)**0.80 S t = 0.00025 (MJD-57415)**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 1 29 57416 0.0023 0.2945 0.03032 2016 1 30 57417 0.0010 0.2959 0.02887 2016 1 31 57418 -0.0004 0.2972 0.02751 2016 2 1 57419 -0.0016 0.2984 0.02621 2016 2 2 57420 -0.0027 0.2997 0.02498 2016 2 3 57421 -0.0036 0.3011 0.02383 2016 2 4 57422 -0.0045 0.3025 0.02273 2016 2 5 57423 -0.0054 0.3040 0.02163 2016 2 6 57424 -0.0063 0.3056 0.02049 2016 2 7 57425 -0.0071 0.3072 0.01925 2016 2 8 57426 -0.0080 0.3088 0.01784 2016 2 9 57427 -0.0088 0.3105 0.01621 2016 2 10 57428 -0.0097 0.3121 0.01433 2016 2 11 57429 -0.0105 0.3137 0.01224 2016 2 12 57430 -0.0113 0.3154 0.01003 2016 2 13 57431 -0.0121 0.3170 0.00779 2016 2 14 57432 -0.0127 0.3186 0.00562 2016 2 15 57433 -0.0134 0.3203 0.00357 2016 2 16 57434 -0.0140 0.3220 0.00164 2016 2 17 57435 -0.0146 0.3237 -0.00020 2016 2 18 57436 -0.0152 0.3254 -0.00199 2016 2 19 57437 -0.0157 0.3271 -0.00380 2016 2 20 57438 -0.0162 0.3288 -0.00566 2016 2 21 57439 -0.0167 0.3305 -0.00761 2016 2 22 57440 -0.0171 0.3322 -0.00965 2016 2 23 57441 -0.0175 0.3340 -0.01176 2016 2 24 57442 -0.0179 0.3357 -0.01393 2016 2 25 57443 -0.0182 0.3374 -0.01610 2016 2 26 57444 -0.0185 0.3392 -0.01825 2016 2 27 57445 -0.0188 0.3410 -0.02036 2016 2 28 57446 -0.0191 0.3427 -0.02241 2016 2 29 57447 -0.0193 0.3445 -0.02438 2016 3 1 57448 -0.0195 0.3463 -0.02628 2016 3 2 57449 -0.0196 0.3481 -0.02811 2016 3 3 57450 -0.0197 0.3498 -0.02990 2016 3 4 57451 -0.0198 0.3516 -0.03171 2016 3 5 57452 -0.0198 0.3534 -0.03359 2016 3 6 57453 -0.0198 0.3552 -0.03559 2016 3 7 57454 -0.0198 0.3570 -0.03776 2016 3 8 57455 -0.0198 0.3588 -0.04011 2016 3 9 57456 -0.0197 0.3605 -0.04264 2016 3 10 57457 -0.0196 0.3623 -0.04527 2016 3 11 57458 -0.0194 0.3641 -0.04791 2016 3 12 57459 -0.0192 0.3659 -0.05045 2016 3 13 57460 -0.0190 0.3677 -0.05283 2016 3 14 57461 -0.0188 0.3694 -0.05501 2016 3 15 57462 -0.0185 0.3712 -0.05702 2016 3 16 57463 -0.0182 0.3730 -0.05889 2016 3 17 57464 -0.0178 0.3748 -0.06070 2016 3 18 57465 -0.0175 0.3765 -0.06250 2016 3 19 57466 -0.0171 0.3783 -0.06432 2016 3 20 57467 -0.0166 0.3800 -0.06619 2016 3 21 57468 -0.0162 0.3818 -0.06811 2016 3 22 57469 -0.0156 0.3835 -0.07007 2016 3 23 57470 -0.0151 0.3852 -0.07205 2016 3 24 57471 -0.0145 0.3869 -0.07403 2016 3 25 57472 -0.0139 0.3887 -0.07599 2016 3 26 57473 -0.0133 0.3904 -0.07790 2016 3 27 57474 -0.0127 0.3921 -0.07975 2016 3 28 57475 -0.0120 0.3938 -0.08153 2016 3 29 57476 -0.0112 0.3954 -0.08324 2016 3 30 57477 -0.0105 0.3971 -0.08490 2016 3 31 57478 -0.0097 0.3988 -0.08655 2016 4 1 57479 -0.0089 0.4004 -0.08825 2016 4 2 57480 -0.0081 0.4020 -0.09002 2016 4 3 57481 -0.0072 0.4037 -0.09194 2016 4 4 57482 -0.0063 0.4053 -0.09404 2016 4 5 57483 -0.0054 0.4069 -0.09633 2016 4 6 57484 -0.0044 0.4085 -0.09878 2016 4 7 57485 -0.0034 0.4100 -0.10130 2016 4 8 57486 -0.0024 0.4116 -0.10380 2016 4 9 57487 -0.0013 0.4131 -0.10617 2016 4 10 57488 -0.0003 0.4146 -0.10838 2016 4 11 57489 0.0008 0.4162 -0.11040 2016 4 12 57490 0.0020 0.4176 -0.11227 2016 4 13 57491 0.0031 0.4191 -0.11405 2016 4 14 57492 0.0043 0.4206 -0.11578 2016 4 15 57493 0.0055 0.4220 -0.11752 2016 4 16 57494 0.0067 0.4235 -0.11928 2016 4 17 57495 0.0080 0.4249 -0.12108 2016 4 18 57496 0.0093 0.4263 -0.12293 2016 4 19 57497 0.0106 0.4276 -0.12479 2016 4 20 57498 0.0119 0.4290 -0.12666 2016 4 21 57499 0.0133 0.4303 -0.12850 2016 4 22 57500 0.0146 0.4316 -0.13030 2016 4 23 57501 0.0161 0.4329 -0.13203 2016 4 24 57502 0.0175 0.4342 -0.13368 2016 4 25 57503 0.0189 0.4355 -0.13526 2016 4 26 57504 0.0204 0.4367 -0.13677 2016 4 27 57505 0.0219 0.4379 -0.13824 2016 4 28 57506 0.0234 0.4391 -0.13971 2016 4 29 57507 0.0249 0.4402 -0.14123 2016 4 30 57508 0.0265 0.4414 -0.14285 2016 5 1 57509 0.0281 0.4425 -0.14461 2016 5 2 57510 0.0297 0.4436 -0.14654 2016 5 3 57511 0.0313 0.4447 -0.14863 2016 5 4 57512 0.0329 0.4457 -0.15084 2016 5 5 57513 0.0346 0.4468 -0.15309 2016 5 6 57514 0.0363 0.4478 -0.15528 2016 5 7 57515 0.0379 0.4487 -0.15733 2016 5 8 57516 0.0397 0.4497 -0.15920 2016 5 9 57517 0.0414 0.4506 -0.16089 2016 5 10 57518 0.0431 0.4515 -0.16245 2016 5 11 57519 0.0449 0.4524 -0.16394 2016 5 12 57520 0.0466 0.4533 -0.16540 2016 5 13 57521 0.0484 0.4541 -0.16687 2016 5 14 57522 0.0502 0.4549 -0.16835 2016 5 15 57523 0.0520 0.4557 -0.16986 2016 5 16 57524 0.0539 0.4564 -0.17140 2016 5 17 57525 0.0557 0.4571 -0.17293 2016 5 18 57526 0.0576 0.4578 -0.17443 2016 5 19 57527 0.0594 0.4585 -0.17587 2016 5 20 57528 0.0613 0.4591 -0.17724 2016 5 21 57529 0.0632 0.4597 -0.17852 2016 5 22 57530 0.0651 0.4603 -0.17971 2016 5 23 57531 0.0670 0.4609 -0.18081 2016 5 24 57532 0.0689 0.4614 -0.18186 2016 5 25 57533 0.0708 0.4619 -0.18289 2016 5 26 57534 0.0728 0.4624 -0.18393 2016 5 27 57535 0.0747 0.4628 -0.18505 2016 5 28 57536 0.0767 0.4632 -0.18627 2016 5 29 57537 0.0786 0.4636 -0.18764 2016 5 30 57538 0.0806 0.4640 -0.18914 2016 5 31 57539 0.0825 0.4643 -0.19076 2016 6 1 57540 0.0845 0.4646 -0.19243 2016 6 2 57541 0.0865 0.4649 -0.19409 2016 6 3 57542 0.0885 0.4651 -0.19566 2016 6 4 57543 0.0904 0.4653 -0.19707 2016 6 5 57544 0.0924 0.4655 -0.19831 2016 6 6 57545 0.0944 0.4657 -0.19941 2016 6 7 57546 0.0964 0.4658 -0.20042 2016 6 8 57547 0.0984 0.4659 -0.20139 2016 6 9 57548 0.1004 0.4660 -0.20236 2016 6 10 57549 0.1024 0.4660 -0.20335 2016 6 11 57550 0.1044 0.4660 -0.20436 2016 6 12 57551 0.1063 0.4660 -0.20539 2016 6 13 57552 0.1083 0.4659 -0.20640 2016 6 14 57553 0.1103 0.4658 -0.20738 2016 6 15 57554 0.1123 0.4657 -0.20830 2016 6 16 57555 0.1143 0.4656 -0.20915 2016 6 17 57556 0.1162 0.4654 -0.20990 2016 6 18 57557 0.1182 0.4652 -0.21056 2016 6 19 57558 0.1202 0.4650 -0.21113 2016 6 20 57559 0.1221 0.4647 -0.21164 2016 6 21 57560 0.1241 0.4645 -0.21211 2016 6 22 57561 0.1260 0.4642 -0.21258 2016 6 23 57562 0.1280 0.4638 -0.21312 2016 6 24 57563 0.1299 0.4634 -0.21375 2016 6 25 57564 0.1318 0.4630 -0.21452 2016 6 26 57565 0.1338 0.4626 -0.21541 2016 6 27 57566 0.1357 0.4622 -0.21642 2016 6 28 57567 0.1376 0.4617 -0.21749 2016 6 29 57568 0.1395 0.4612 -0.21856 2016 6 30 57569 0.1413 0.4606 -0.21957 2016 7 1 57570 0.1432 0.4601 -0.22046 2016 7 2 57571 0.1451 0.4595 -0.22121 2016 7 3 57572 0.1469 0.4588 -0.22182 2016 7 4 57573 0.1487 0.4582 -0.22234 2016 7 5 57574 0.1505 0.4575 -0.22283 2016 7 6 57575 0.1523 0.4568 -0.22333 2016 7 7 57576 0.1541 0.4561 -0.22386 2016 7 8 57577 0.1559 0.4553 -0.22444 2016 7 9 57578 0.1577 0.4545 -0.22505 2016 7 10 57579 0.1594 0.4537 -0.22567 2016 7 11 57580 0.1611 0.4529 -0.22628 2016 7 12 57581 0.1629 0.4520 -0.22686 2016 7 13 57582 0.1646 0.4512 -0.22737 2016 7 14 57583 0.1662 0.4502 -0.22781 2016 7 15 57584 0.1679 0.4493 -0.22817 2016 7 16 57585 0.1695 0.4484 -0.22846 2016 7 17 57586 0.1712 0.4474 -0.22869 2016 7 18 57587 0.1728 0.4464 -0.22890 2016 7 19 57588 0.1743 0.4453 -0.22913 2016 7 20 57589 0.1759 0.4443 -0.22942 2016 7 21 57590 0.1774 0.4432 -0.22982 2016 7 22 57591 0.1790 0.4421 -0.23037 2016 7 23 57592 0.1805 0.4410 -0.23108 2016 7 24 57593 0.1819 0.4398 -0.23192 2016 7 25 57594 0.1834 0.4387 -0.23284 2016 7 26 57595 0.1848 0.4375 -0.23378 2016 7 27 57596 0.1862 0.4363 -0.23468 2016 7 28 57597 0.1876 0.4350 -0.23549 2016 7 29 57598 0.1890 0.4338 -0.23619 2016 7 30 57599 0.1903 0.4325 -0.23678 2016 7 31 57600 0.1917 0.4312 -0.23731 2016 8 1 57601 0.1930 0.4299 -0.23782 2016 8 2 57602 0.1942 0.4286 -0.23837 2016 8 3 57603 0.1955 0.4272 -0.23899 2016 8 4 57604 0.1967 0.4259 -0.23971 2016 8 5 57605 0.1979 0.4245 -0.24052 2016 8 6 57606 0.1990 0.4231 -0.24138 2016 8 7 57607 0.2002 0.4217 -0.24227 2016 8 8 57608 0.2013 0.4202 -0.24314 2016 8 9 57609 0.2024 0.4188 -0.24397 2016 8 10 57610 0.2034 0.4173 -0.24474 2016 8 11 57611 0.2044 0.4158 -0.24542 2016 8 12 57612 0.2054 0.4143 -0.24603 2016 8 13 57613 0.2064 0.4128 -0.24658 2016 8 14 57614 0.2073 0.4113 -0.24709 2016 8 15 57615 0.2083 0.4097 -0.24762 2016 8 16 57616 0.2091 0.4082 -0.24821 2016 8 17 57617 0.2100 0.4066 -0.24890 2016 8 18 57618 0.2108 0.4050 -0.24974 2016 8 19 57619 0.2116 0.4034 -0.25074 2016 8 20 57620 0.2124 0.4018 -0.25191 2016 8 21 57621 0.2131 0.4002 -0.25318 2016 8 22 57622 0.2138 0.3986 -0.25449 2016 8 23 57623 0.2145 0.3969 -0.25576 2016 8 24 57624 0.2151 0.3953 -0.25694 2016 8 25 57625 0.2158 0.3936 -0.25801 2016 8 26 57626 0.2163 0.3920 -0.25898 2016 8 27 57627 0.2169 0.3903 -0.25989 2016 8 28 57628 0.2174 0.3886 -0.26079 2016 8 29 57629 0.2179 0.3869 -0.26174 2016 8 30 57630 0.2184 0.3852 -0.26279 2016 8 31 57631 0.2188 0.3835 -0.26398 2016 9 1 57632 0.2192 0.3818 -0.26532 2016 9 2 57633 0.2195 0.3801 -0.26678 2016 9 3 57634 0.2199 0.3784 -0.26828 2016 9 4 57635 0.2202 0.3767 -0.26977 2016 9 5 57636 0.2204 0.3749 -0.27122 2016 9 6 57637 0.2207 0.3732 -0.27259 2016 9 7 57638 0.2209 0.3715 -0.27390 2016 9 8 57639 0.2210 0.3697 -0.27510 2016 9 9 57640 0.2212 0.3680 -0.27620 2016 9 10 57641 0.2213 0.3662 -0.27722 2016 9 11 57642 0.2214 0.3645 -0.27825 2016 9 12 57643 0.2214 0.3627 -0.27933 2016 9 13 57644 0.2214 0.3610 -0.28054 2016 9 14 57645 0.2214 0.3592 -0.28192 2016 9 15 57646 0.2213 0.3575 -0.28352 2016 9 16 57647 0.2212 0.3558 -0.28529 2016 9 17 57648 0.2211 0.3540 -0.28715 2016 9 18 57649 0.2210 0.3523 -0.28907 2016 9 19 57650 0.2208 0.3505 -0.29095 2016 9 20 57651 0.2206 0.3488 -0.29264 2016 9 21 57652 0.2203 0.3471 -0.29419 2016 9 22 57653 0.2200 0.3453 -0.29556 2016 9 23 57654 0.2197 0.3436 -0.29671 2016 9 24 57655 0.2194 0.3419 -0.29772 2016 9 25 57656 0.2190 0.3402 -0.29860 2016 9 26 57657 0.2186 0.3385 -0.29948 2016 9 27 57658 0.2182 0.3368 -0.30050 2016 9 28 57659 0.2177 0.3351 -0.30150 2016 9 29 57660 0.2172 0.3334 -0.30264 2016 9 30 57661 0.2167 0.3317 -0.30385 2016 10 1 57662 0.2161 0.3300 -0.30508 2016 10 2 57663 0.2155 0.3283 -0.30631 2016 10 3 57664 0.2149 0.3267 -0.30754 2016 10 4 57665 0.2143 0.3250 -0.30882 2016 10 5 57666 0.2136 0.3234 -0.31006 2016 10 6 57667 0.2129 0.3218 -0.31119 2016 10 7 57668 0.2121 0.3202 -0.31227 2016 10 8 57669 0.2114 0.3186 -0.31330 2016 10 9 57670 0.2106 0.3170 -0.31437 2016 10 10 57671 0.2098 0.3154 -0.31545 2016 10 11 57672 0.2089 0.3138 -0.31666 2016 10 12 57673 0.2080 0.3123 -0.31803 2016 10 13 57674 0.2071 0.3107 -0.31962 2016 10 14 57675 0.2062 0.3092 -0.32140 2016 10 15 57676 0.2052 0.3077 -0.32339 2016 10 16 57677 0.2042 0.3062 -0.32540 2016 10 17 57678 0.2032 0.3047 -0.32744 2016 10 18 57679 0.2022 0.3032 -0.32934 2016 10 19 57680 0.2011 0.3018 -0.33113 2016 10 20 57681 0.2000 0.3003 -0.33282 2016 10 21 57682 0.1989 0.2989 -0.33447 2016 10 22 57683 0.1977 0.2975 -0.33609 2016 10 23 57684 0.1966 0.2961 -0.33776 2016 10 24 57685 0.1954 0.2947 -0.33947 2016 10 25 57686 0.1942 0.2934 -0.34121 2016 10 26 57687 0.1929 0.2921 -0.34297 2016 10 27 57688 0.1917 0.2907 -0.34477 2016 10 28 57689 0.1904 0.2894 -0.34654 2016 10 29 57690 0.1891 0.2882 -0.34826 2016 10 30 57691 0.1877 0.2869 -0.34994 2016 10 31 57692 0.1864 0.2857 -0.35153 2016 11 1 57693 0.1850 0.2845 -0.35300 2016 11 2 57694 0.1836 0.2833 -0.35430 2016 11 3 57695 0.1822 0.2821 -0.35551 2016 11 4 57696 0.1807 0.2809 -0.35660 2016 11 5 57697 0.1793 0.2798 -0.35767 2016 11 6 57698 0.1778 0.2787 -0.35868 2016 11 7 57699 0.1763 0.2776 -0.35972 2016 11 8 57700 0.1748 0.2765 -0.36091 2016 11 9 57701 0.1733 0.2755 -0.36226 2016 11 10 57702 0.1717 0.2745 -0.36379 2016 11 11 57703 0.1701 0.2735 -0.36555 2016 11 12 57704 0.1686 0.2725 -0.36744 2016 11 13 57705 0.1670 0.2716 -0.36934 2016 11 14 57706 0.1653 0.2706 -0.37119 2016 11 15 57707 0.1637 0.2697 -0.37288 2016 11 16 57708 0.1621 0.2689 -0.37438 2016 11 17 57709 0.1604 0.2680 -0.37572 2016 11 18 57710 0.1587 0.2672 -0.37686 2016 11 19 57711 0.1570 0.2664 -0.37789 2016 11 20 57712 0.1553 0.2656 -0.37892 2016 11 21 57713 0.1536 0.2649 -0.37992 2016 11 22 57714 0.1519 0.2641 -0.38100 2016 11 23 57715 0.1502 0.2634 -0.38211 2016 11 24 57716 0.1484 0.2628 -0.38331 2016 11 25 57717 0.1467 0.2621 -0.38447 2016 11 26 57718 0.1449 0.2615 -0.38570 2016 11 27 57719 0.1431 0.2609 -0.38690 2016 11 28 57720 0.1413 0.2603 -0.38804 2016 11 29 57721 0.1395 0.2598 -0.38915 2016 11 30 57722 0.1377 0.2593 -0.39022 2016 12 1 57723 0.1359 0.2588 -0.39121 2016 12 2 57724 0.1341 0.2583 -0.39206 2016 12 3 57725 0.1323 0.2579 -0.39286 2016 12 4 57726 0.1305 0.2575 -0.39366 2016 12 5 57727 0.1286 0.2571 -0.39446 2016 12 6 57728 0.1268 0.2568 -0.39533 2016 12 7 57729 0.1249 0.2565 -0.39629 2016 12 8 57730 0.1231 0.2562 -0.39734 2016 12 9 57731 0.1213 0.2559 -0.39855 2016 12 10 57732 0.1194 0.2557 -0.39989 2016 12 11 57733 0.1175 0.2555 -0.40128 2016 12 12 57734 0.1157 0.2553 -0.40270 2016 12 13 57735 0.1138 0.2551 -0.40401 2016 12 14 57736 0.1120 0.2550 -0.40524 2016 12 15 57737 0.1101 0.2549 -0.40643 2016 12 16 57738 0.1083 0.2548 -0.40760 2016 12 17 57739 0.1064 0.2548 -0.40880 2016 12 18 57740 0.1046 0.2548 -0.41014 2016 12 19 57741 0.1027 0.2548 -0.41150 2016 12 20 57742 0.1008 0.2548 -0.41287 2016 12 21 57743 0.0990 0.2549 -0.41417 2016 12 22 57744 0.0972 0.2550 -0.41547 2016 12 23 57745 0.0953 0.2551 -0.41672 2016 12 24 57746 0.0935 0.2553 -0.41782 2016 12 25 57747 0.0917 0.2555 -0.41889 2016 12 26 57748 0.0898 0.2557 -0.41984 2016 12 27 57749 0.0880 0.2559 -0.42072 2016 12 28 57750 0.0862 0.2562 -0.42157 2016 12 29 57751 0.0844 0.2564 -0.42242 2016 12 30 57752 0.0826 0.2568 -0.42319 2016 12 31 57753 0.0808 0.2571 -0.42402 2017 1 1 57754 0.0790 0.2575 -0.42490 2017 1 2 57755 0.0773 0.2579 -0.42583 2017 1 3 57756 0.0755 0.2583 -0.42685 2017 1 4 57757 0.0738 0.2587 -0.42790 2017 1 5 57758 0.0720 0.2592 -0.42899 2017 1 6 57759 0.0703 0.2597 -0.43013 2017 1 7 57760 0.0686 0.2602 -0.43124 2017 1 8 57761 0.0669 0.2608 -0.43235 2017 1 9 57762 0.0652 0.2614 -0.43334 2017 1 10 57763 0.0635 0.2620 -0.43424 2017 1 11 57764 0.0618 0.2626 -0.43504 2017 1 12 57765 0.0602 0.2633 -0.43578 2017 1 13 57766 0.0585 0.2639 -0.43653 2017 1 14 57767 0.0569 0.2647 -0.43732 2017 1 15 57768 0.0553 0.2654 -0.43817 2017 1 16 57769 0.0537 0.2661 -0.43906 2017 1 17 57770 0.0522 0.2669 -0.44006 2017 1 18 57771 0.0506 0.2677 -0.44106 2017 1 19 57772 0.0491 0.2685 -0.44203 2017 1 20 57773 0.0475 0.2694 -0.44297 2017 1 21 57774 0.0460 0.2702 -0.44387 2017 1 22 57775 0.0445 0.2711 -0.44475 2017 1 23 57776 0.0431 0.2720 -0.44556 2017 1 24 57777 0.0416 0.2730 -0.44630 2017 1 25 57778 0.0402 0.2739 -0.44706 2017 1 26 57779 0.0388 0.2749 -0.44784 2017 1 27 57780 0.0374 0.2759 -0.44873 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) 57393 -94.08 0.30 -9.19 0.01 57394 -94.13 0.30 -9.11 0.01 57395 -94.10 0.30 -9.19 0.01 57396 -93.94 0.30 -9.44 0.15 57397 -93.68 0.30 -9.69 0.15 57398 -93.42 0.11 -9.73 0.01 57399 -93.29 0.11 -9.54 0.01 57400 -93.32 0.11 -9.29 0.01 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 57393 -0.088 0.119 -0.101 0.010 57394 -0.080 0.119 -0.143 0.010 57395 -0.057 0.119 -0.163 0.010 57396 -0.027 0.119 -0.172 0.150 57397 -0.010 0.119 -0.171 0.150 57398 -0.011 0.044 -0.155 0.010 57399 -0.028 0.044 -0.153 0.010 57400 -0.044 0.044 -0.192 0.010 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).