********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 10 March 2016 Vol. XXIX No. 010 ______________________________________________________________________ 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 3 4 57451 -.02375 .00009 0.36020 .00009 -0.025410 0.000014 16 3 5 57452 -.02370 .00009 0.36264 .00010 -0.027214 0.000030 16 3 6 57453 -.02373 .00009 0.36507 .00010 -0.029137 0.000029 16 3 7 57454 -.02401 .00009 0.36756 .00009 -0.031276 0.000031 16 3 8 57455 -.02443 .00009 0.37004 .00009 -0.033549 0.000030 16 3 9 57456 -.02481 .00009 0.37247 .00009 -0.035874 0.000026 16 3 10 57457 -.02511 .00009 0.37489 .00009 -0.038220 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 = 0.0996 - 0.1142 cos A - 0.0186 sin A - 0.0149 cos C + 0.0210 sin C y = 0.3690 - 0.0176 cos A + 0.0987 sin A + 0.0210 cos C + 0.0149 sin C UT1-UTC = -0.0527 - 0.00139 (MJD - 57465) - (UT2-UT1) where A = 2*pi*(MJD-57457)/365.25 and C = 2*pi*(MJD-57457)/435. TAI-UTC(MJD 57458) = 36.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-57457)**0.80 S t = 0.00025 (MJD-57457)**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 11 57458 -0.0253 0.3771 -0.04070 2016 3 12 57459 -0.0253 0.3793 -0.04308 2016 3 13 57460 -0.0253 0.3814 -0.04532 2016 3 14 57461 -0.0251 0.3834 -0.04739 2016 3 15 57462 -0.0247 0.3853 -0.04930 2016 3 16 57463 -0.0244 0.3872 -0.05107 2016 3 17 57464 -0.0240 0.3892 -0.05275 2016 3 18 57465 -0.0237 0.3911 -0.05441 2016 3 19 57466 -0.0233 0.3929 -0.05610 2016 3 20 57467 -0.0228 0.3948 -0.05789 2016 3 21 57468 -0.0222 0.3966 -0.05976 2016 3 22 57469 -0.0216 0.3984 -0.06169 2016 3 23 57470 -0.0209 0.4001 -0.06365 2016 3 24 57471 -0.0202 0.4020 -0.06565 2016 3 25 57472 -0.0194 0.4038 -0.06767 2016 3 26 57473 -0.0186 0.4056 -0.06967 2016 3 27 57474 -0.0177 0.4073 -0.07160 2016 3 28 57475 -0.0169 0.4091 -0.07346 2016 3 29 57476 -0.0160 0.4109 -0.07524 2016 3 30 57477 -0.0151 0.4126 -0.07698 2016 3 31 57478 -0.0141 0.4144 -0.07869 2016 4 1 57479 -0.0131 0.4161 -0.08041 2016 4 2 57480 -0.0121 0.4178 -0.08219 2016 4 3 57481 -0.0111 0.4195 -0.08409 2016 4 4 57482 -0.0100 0.4212 -0.08617 2016 4 5 57483 -0.0089 0.4229 -0.08843 2016 4 6 57484 -0.0077 0.4246 -0.09086 2016 4 7 57485 -0.0066 0.4262 -0.09338 2016 4 8 57486 -0.0054 0.4278 -0.09588 2016 4 9 57487 -0.0042 0.4294 -0.09826 2016 4 10 57488 -0.0029 0.4310 -0.10045 2016 4 11 57489 -0.0016 0.4326 -0.10246 2016 4 12 57490 -0.0003 0.4341 -0.10431 2016 4 13 57491 0.0010 0.4356 -0.10608 2016 4 14 57492 0.0024 0.4371 -0.10782 2016 4 15 57493 0.0037 0.4386 -0.10957 2016 4 16 57494 0.0052 0.4401 -0.11138 2016 4 17 57495 0.0066 0.4415 -0.11324 2016 4 18 57496 0.0081 0.4429 -0.11515 2016 4 19 57497 0.0096 0.4443 -0.11711 2016 4 20 57498 0.0111 0.4457 -0.11908 2016 4 21 57499 0.0126 0.4471 -0.12105 2016 4 22 57500 0.0142 0.4484 -0.12298 2016 4 23 57501 0.0158 0.4497 -0.12488 2016 4 24 57502 0.0174 0.4510 -0.12671 2016 4 25 57503 0.0191 0.4523 -0.12848 2016 4 26 57504 0.0207 0.4535 -0.13019 2016 4 27 57505 0.0224 0.4547 -0.13187 2016 4 28 57506 0.0241 0.4559 -0.13355 2016 4 29 57507 0.0258 0.4570 -0.13527 2016 4 30 57508 0.0276 0.4582 -0.13709 2016 5 1 57509 0.0294 0.4593 -0.13904 2016 5 2 57510 0.0312 0.4604 -0.14115 2016 5 3 57511 0.0330 0.4614 -0.14342 2016 5 4 57512 0.0348 0.4624 -0.14579 2016 5 5 57513 0.0367 0.4634 -0.14820 2016 5 6 57514 0.0385 0.4644 -0.15053 2016 5 7 57515 0.0404 0.4654 -0.15273 2016 5 8 57516 0.0423 0.4663 -0.15474 2016 5 9 57517 0.0442 0.4672 -0.15658 2016 5 10 57518 0.0462 0.4680 -0.15827 2016 5 11 57519 0.0481 0.4689 -0.15989 2016 5 12 57520 0.0501 0.4697 -0.16148 2016 5 13 57521 0.0521 0.4704 -0.16307 2016 5 14 57522 0.0540 0.4712 -0.16467 2016 5 15 57523 0.0561 0.4719 -0.16627 2016 5 16 57524 0.0581 0.4726 -0.16786 2016 5 17 57525 0.0601 0.4732 -0.16944 2016 5 18 57526 0.0621 0.4738 -0.17097 2016 5 19 57527 0.0642 0.4744 -0.17243 2016 5 20 57528 0.0663 0.4750 -0.17381 2016 5 21 57529 0.0683 0.4755 -0.17510 2016 5 22 57530 0.0704 0.4760 -0.17628 2016 5 23 57531 0.0725 0.4765 -0.17738 2016 5 24 57532 0.0746 0.4769 -0.17840 2016 5 25 57533 0.0767 0.4773 -0.17940 2016 5 26 57534 0.0789 0.4777 -0.18041 2016 5 27 57535 0.0810 0.4780 -0.18148 2016 5 28 57536 0.0831 0.4784 -0.18267 2016 5 29 57537 0.0852 0.4786 -0.18398 2016 5 30 57538 0.0874 0.4789 -0.18544 2016 5 31 57539 0.0895 0.4791 -0.18701 2016 6 1 57540 0.0917 0.4793 -0.18864 2016 6 2 57541 0.0938 0.4794 -0.19025 2016 6 3 57542 0.0960 0.4795 -0.19176 2016 6 4 57543 0.0981 0.4796 -0.19312 2016 6 5 57544 0.1003 0.4797 -0.19431 2016 6 6 57545 0.1024 0.4797 -0.19536 2016 6 7 57546 0.1046 0.4797 -0.19632 2016 6 8 57547 0.1068 0.4796 -0.19723 2016 6 9 57548 0.1089 0.4796 -0.19815 2016 6 10 57549 0.1111 0.4794 -0.19908 2016 6 11 57550 0.1132 0.4793 -0.20003 2016 6 12 57551 0.1154 0.4791 -0.20099 2016 6 13 57552 0.1175 0.4789 -0.20195 2016 6 14 57553 0.1197 0.4787 -0.20288 2016 6 15 57554 0.1218 0.4784 -0.20376 2016 6 16 57555 0.1239 0.4781 -0.20456 2016 6 17 57556 0.1261 0.4778 -0.20528 2016 6 18 57557 0.1282 0.4774 -0.20591 2016 6 19 57558 0.1303 0.4770 -0.20646 2016 6 20 57559 0.1324 0.4766 -0.20695 2016 6 21 57560 0.1345 0.4761 -0.20740 2016 6 22 57561 0.1366 0.4756 -0.20787 2016 6 23 57562 0.1387 0.4751 -0.20841 2016 6 24 57563 0.1407 0.4745 -0.20905 2016 6 25 57564 0.1428 0.4739 -0.20982 2016 6 26 57565 0.1448 0.4733 -0.21074 2016 6 27 57566 0.1469 0.4727 -0.21178 2016 6 28 57567 0.1489 0.4720 -0.21289 2016 6 29 57568 0.1509 0.4713 -0.21401 2016 6 30 57569 0.1529 0.4705 -0.21507 2016 7 1 57570 0.1549 0.4698 -0.21601 2016 7 2 57571 0.1569 0.4690 -0.21681 2016 7 3 57572 0.1588 0.4681 -0.21748 2016 7 4 57573 0.1608 0.4673 -0.21806 2016 7 5 57574 0.1627 0.4664 -0.21861 2016 7 6 57575 0.1646 0.4655 -0.21917 2016 7 7 57576 0.1665 0.4645 -0.21977 2016 7 8 57577 0.1684 0.4635 -0.22041 2016 7 9 57578 0.1702 0.4625 -0.22109 2016 7 10 57579 0.1721 0.4615 -0.22178 2016 7 11 57580 0.1739 0.4605 -0.22246 2016 7 12 57581 0.1757 0.4594 -0.22310 2016 7 13 57582 0.1775 0.4583 -0.22368 2016 7 14 57583 0.1792 0.4571 -0.22420 2016 7 15 57584 0.1810 0.4560 -0.22463 2016 7 16 57585 0.1827 0.4548 -0.22499 2016 7 17 57586 0.1844 0.4535 -0.22530 2016 7 18 57587 0.1860 0.4523 -0.22559 2016 7 19 57588 0.1877 0.4510 -0.22589 2016 7 20 57589 0.1893 0.4497 -0.22626 2016 7 21 57590 0.1909 0.4484 -0.22674 2016 7 22 57591 0.1925 0.4471 -0.22737 2016 7 23 57592 0.1940 0.4457 -0.22815 2016 7 24 57593 0.1956 0.4443 -0.22907 2016 7 25 57594 0.1971 0.4429 -0.23006 2016 7 26 57595 0.1985 0.4415 -0.23108 2016 7 27 57596 0.2000 0.4400 -0.23205 2016 7 28 57597 0.2014 0.4385 -0.23292 2016 7 29 57598 0.2028 0.4371 -0.23367 2016 7 30 57599 0.2042 0.4355 -0.23431 2016 7 31 57600 0.2055 0.4340 -0.23486 2016 8 1 57601 0.2068 0.4324 -0.23538 2016 8 2 57602 0.2081 0.4309 -0.23592 2016 8 3 57603 0.2094 0.4293 -0.23651 2016 8 4 57604 0.2106 0.4276 -0.23718 2016 8 5 57605 0.2118 0.4260 -0.23791 2016 8 6 57606 0.2129 0.4243 -0.23869 2016 8 7 57607 0.2141 0.4227 -0.23948 2016 8 8 57608 0.2152 0.4210 -0.24025 2016 8 9 57609 0.2163 0.4193 -0.24099 2016 8 10 57610 0.2173 0.4176 -0.24168 2016 8 11 57611 0.2183 0.4158 -0.24230 2016 8 12 57612 0.2193 0.4141 -0.24285 2016 8 13 57613 0.2202 0.4123 -0.24337 2016 8 14 57614 0.2211 0.4105 -0.24386 2016 8 15 57615 0.2220 0.4087 -0.24438 2016 8 16 57616 0.2229 0.4069 -0.24496 2016 8 17 57617 0.2237 0.4051 -0.24566 2016 8 18 57618 0.2245 0.4033 -0.24652 2016 8 19 57619 0.2252 0.4014 -0.24757 2016 8 20 57620 0.2259 0.3996 -0.24879 2016 8 21 57621 0.2266 0.3977 -0.25013 2016 8 22 57622 0.2273 0.3958 -0.25151 2016 8 23 57623 0.2279 0.3939 -0.25286 2016 8 24 57624 0.2285 0.3921 -0.25412 2016 8 25 57625 0.2290 0.3902 -0.25525 2016 8 26 57626 0.2295 0.3882 -0.25625 2016 8 27 57627 0.2300 0.3863 -0.25716 2016 8 28 57628 0.2304 0.3844 -0.25803 2016 8 29 57629 0.2308 0.3825 -0.25890 2016 8 30 57630 0.2312 0.3805 -0.25983 2016 8 31 57631 0.2315 0.3786 -0.26084 2016 9 1 57632 0.2318 0.3766 -0.26193 2016 9 2 57633 0.2321 0.3747 -0.26307 2016 9 3 57634 0.2323 0.3727 -0.26425 2016 9 4 57635 0.2325 0.3708 -0.26542 2016 9 5 57636 0.2327 0.3688 -0.26655 2016 9 6 57637 0.2328 0.3668 -0.26763 2016 9 7 57638 0.2329 0.3649 -0.26863 2016 9 8 57639 0.2329 0.3629 -0.26954 2016 9 9 57640 0.2329 0.3609 -0.27038 2016 9 10 57641 0.2329 0.3590 -0.27117 2016 9 11 57642 0.2328 0.3570 -0.27194 2016 9 12 57643 0.2328 0.3550 -0.27274 2016 9 13 57644 0.2326 0.3531 -0.27360 2016 9 14 57645 0.2325 0.3511 -0.27459 2016 9 15 57646 0.2323 0.3492 -0.27575 2016 9 16 57647 0.2320 0.3472 -0.27710 2016 9 17 57648 0.2317 0.3452 -0.27862 2016 9 18 57649 0.2314 0.3433 -0.28025 2016 9 19 57650 0.2311 0.3413 -0.28192 2016 9 20 57651 0.2307 0.3394 -0.28354 2016 9 21 57652 0.2303 0.3375 -0.28506 2016 9 22 57653 0.2299 0.3356 -0.28646 2016 9 23 57654 0.2294 0.3336 -0.28776 2016 9 24 57655 0.2289 0.3317 -0.28902 2016 9 25 57656 0.2283 0.3298 -0.29030 2016 9 26 57657 0.2277 0.3279 -0.29165 2016 9 27 57658 0.2271 0.3260 -0.29308 2016 9 28 57659 0.2264 0.3242 -0.29463 2016 9 29 57660 0.2257 0.3223 -0.29626 2016 9 30 57661 0.2250 0.3204 -0.29797 2016 10 1 57662 0.2243 0.3186 -0.29972 2016 10 2 57663 0.2235 0.3168 -0.30147 2016 10 3 57664 0.2227 0.3149 -0.30320 2016 10 4 57665 0.2218 0.3131 -0.30487 2016 10 5 57666 0.2209 0.3113 -0.30648 2016 10 6 57667 0.2200 0.3096 -0.30801 2016 10 7 57668 0.2190 0.3078 -0.30947 2016 10 8 57669 0.2181 0.3060 -0.31089 2016 10 9 57670 0.2170 0.3043 -0.31232 2016 10 10 57671 0.2160 0.3026 -0.31382 2016 10 11 57672 0.2149 0.3009 -0.31544 2016 10 12 57673 0.2138 0.2992 -0.31722 2016 10 13 57674 0.2127 0.2975 -0.31918 2016 10 14 57675 0.2115 0.2958 -0.32133 2016 10 15 57676 0.2103 0.2942 -0.32361 2016 10 16 57677 0.2091 0.2926 -0.32592 2016 10 17 57678 0.2078 0.2910 -0.32818 2016 10 18 57679 0.2065 0.2894 -0.33034 2016 10 19 57680 0.2052 0.2878 -0.33239 2016 10 20 57681 0.2039 0.2863 -0.33432 2016 10 21 57682 0.2025 0.2848 -0.33615 2016 10 22 57683 0.2011 0.2833 -0.33797 2016 10 23 57684 0.1997 0.2818 -0.33974 2016 10 24 57685 0.1983 0.2803 -0.34157 2016 10 25 57686 0.1968 0.2789 -0.34344 2016 10 26 57687 0.1953 0.2775 -0.34536 2016 10 27 57688 0.1938 0.2761 -0.34735 2016 10 28 57689 0.1922 0.2747 -0.34933 2016 10 29 57690 0.1906 0.2734 -0.35128 2016 10 30 57691 0.1890 0.2721 -0.35323 2016 10 31 57692 0.1874 0.2708 -0.35504 2016 11 1 57693 0.1858 0.2695 -0.35675 2016 11 2 57694 0.1841 0.2682 -0.35837 2016 11 3 57695 0.1824 0.2670 -0.35990 2016 11 4 57696 0.1807 0.2658 -0.36138 2016 11 5 57697 0.1790 0.2647 -0.36281 2016 11 6 57698 0.1772 0.2635 -0.36425 2016 11 7 57699 0.1755 0.2624 -0.36573 2016 11 8 57700 0.1737 0.2613 -0.36739 2016 11 9 57701 0.1719 0.2602 -0.36919 2016 11 10 57702 0.1700 0.2592 -0.37113 2016 11 11 57703 0.1682 0.2582 -0.37327 2016 11 12 57704 0.1663 0.2572 -0.37543 2016 11 13 57705 0.1644 0.2563 -0.37768 2016 11 14 57706 0.1626 0.2553 -0.37986 2016 11 15 57707 0.1606 0.2544 -0.38191 2016 11 16 57708 0.1587 0.2536 -0.38376 2016 11 17 57709 0.1568 0.2527 -0.38553 2016 11 18 57710 0.1548 0.2519 -0.38725 2016 11 19 57711 0.1528 0.2512 -0.38898 2016 11 20 57712 0.1509 0.2504 -0.39071 2016 11 21 57713 0.1489 0.2497 -0.39252 2016 11 22 57714 0.1469 0.2490 -0.39441 2016 11 23 57715 0.1448 0.2484 -0.39641 2016 11 24 57716 0.1428 0.2477 -0.39849 2016 11 25 57717 0.1408 0.2471 -0.40059 2016 11 26 57718 0.1387 0.2466 -0.40262 2016 11 27 57719 0.1367 0.2460 -0.40451 2016 11 28 57720 0.1346 0.2455 -0.40637 2016 11 29 57721 0.1325 0.2451 -0.40803 2016 11 30 57722 0.1304 0.2446 -0.40966 2016 12 1 57723 0.1284 0.2442 -0.41115 2016 12 2 57724 0.1263 0.2438 -0.41256 2016 12 3 57725 0.1242 0.2435 -0.41393 2016 12 4 57726 0.1220 0.2432 -0.41536 2016 12 5 57727 0.1199 0.2429 -0.41688 2016 12 6 57728 0.1178 0.2427 -0.41855 2016 12 7 57729 0.1157 0.2425 -0.42041 2016 12 8 57730 0.1136 0.2423 -0.42243 2016 12 9 57731 0.1115 0.2421 -0.42452 2016 12 10 57732 0.1093 0.2420 -0.42661 2016 12 11 57733 0.1072 0.2419 -0.42864 2016 12 12 57734 0.1051 0.2419 -0.43052 2016 12 13 57735 0.1030 0.2418 -0.43215 2016 12 14 57736 0.1008 0.2418 -0.43365 2016 12 15 57737 0.0987 0.2419 -0.43502 2016 12 16 57738 0.0966 0.2420 -0.43624 2016 12 17 57739 0.0945 0.2421 -0.43739 2016 12 18 57740 0.0924 0.2422 -0.43848 2016 12 19 57741 0.0902 0.2424 -0.43957 2016 12 20 57742 0.0881 0.2426 -0.44078 2016 12 21 57743 0.0860 0.2428 -0.44187 2016 12 22 57744 0.0839 0.2431 -0.44299 2016 12 23 57745 0.0818 0.2434 -0.44411 2016 12 24 57746 0.0798 0.2437 -0.44516 2016 12 25 57747 0.0777 0.2441 -0.44614 2016 12 26 57748 0.0756 0.2444 -0.44706 2016 12 27 57749 0.0736 0.2449 -0.44801 2016 12 28 57750 0.0715 0.2453 -0.44893 2016 12 29 57751 0.0695 0.2458 -0.44977 2016 12 30 57752 0.0674 0.2463 -0.45061 2016 12 31 57753 0.0654 0.2469 -0.45146 2017 1 1 57754 0.0634 0.2475 -0.45241 2017 1 2 57755 0.0614 0.2481 -0.45344 2017 1 3 57756 0.0594 0.2487 -0.45460 2017 1 4 57757 0.0574 0.2494 -0.45590 2017 1 5 57758 0.0555 0.2501 -0.45734 2017 1 6 57759 0.0535 0.2508 -0.45883 2017 1 7 57760 0.0516 0.2515 -0.46039 2017 1 8 57761 0.0497 0.2523 -0.46185 2017 1 9 57762 0.0478 0.2531 -0.46327 2017 1 10 57763 0.0459 0.2540 -0.46456 2017 1 11 57764 0.0440 0.2549 -0.46580 2017 1 12 57765 0.0422 0.2558 -0.46704 2017 1 13 57766 0.0404 0.2567 -0.46839 2017 1 14 57767 0.0385 0.2576 -0.46980 2017 1 15 57768 0.0367 0.2586 -0.47135 2017 1 16 57769 0.0350 0.2596 -0.47295 2017 1 17 57770 0.0332 0.2607 -0.47454 2017 1 18 57771 0.0315 0.2617 -0.47610 2017 1 19 57772 0.0298 0.2628 -0.47762 2017 1 20 57773 0.0281 0.2639 -0.47903 2017 1 21 57774 0.0264 0.2651 -0.48034 2017 1 22 57775 0.0247 0.2663 -0.48156 2017 1 23 57776 0.0231 0.2674 -0.48269 2017 1 24 57777 0.0215 0.2687 -0.48370 2017 1 25 57778 0.0199 0.2699 -0.48461 2017 1 26 57779 0.0184 0.2712 -0.48547 2017 1 27 57780 0.0168 0.2725 -0.48632 2017 1 28 57781 0.0153 0.2738 -0.48724 2017 1 29 57782 0.0138 0.2751 -0.48821 2017 1 30 57783 0.0124 0.2765 -0.48928 2017 1 31 57784 0.0109 0.2778 -0.49051 2017 2 1 57785 0.0095 0.2792 -0.49187 2017 2 2 57786 0.0081 0.2806 -0.49330 2017 2 3 57787 0.0068 0.2821 -0.49480 2017 2 4 57788 0.0055 0.2836 -0.49629 2017 2 5 57789 0.0042 0.2850 -0.49766 2017 2 6 57790 0.0029 0.2865 -0.49894 2017 2 7 57791 0.0017 0.2881 -0.50011 2017 2 8 57792 0.0004 0.2896 -0.50121 2017 2 9 57793 -0.0007 0.2911 -0.50229 2017 2 10 57794 -0.0019 0.2927 -0.50332 2017 2 11 57795 -0.0030 0.2943 -0.50436 2017 2 12 57796 -0.0041 0.2959 -0.50547 2017 2 13 57797 -0.0052 0.2975 -0.50657 2017 2 14 57798 -0.0062 0.2992 -0.50774 2017 2 15 57799 -0.0072 0.3008 -0.50890 2017 2 16 57800 -0.0082 0.3025 -0.51011 2017 2 17 57801 -0.0092 0.3042 -0.51122 2017 2 18 57802 -0.0101 0.3059 -0.51237 2017 2 19 57803 -0.0109 0.3076 -0.51347 2017 2 20 57804 -0.0118 0.3093 -0.51453 2017 2 21 57805 -0.0126 0.3111 -0.51560 2017 2 22 57806 -0.0134 0.3128 -0.51671 2017 2 23 57807 -0.0141 0.3146 -0.51783 2017 2 24 57808 -0.0148 0.3164 -0.51893 2017 2 25 57809 -0.0155 0.3181 -0.52010 2017 2 26 57810 -0.0162 0.3199 -0.52138 2017 2 27 57811 -0.0168 0.3217 -0.52273 2017 2 28 57812 -0.0174 0.3236 -0.52417 2017 3 1 57813 -0.0179 0.3254 -0.52565 2017 3 2 57814 -0.0185 0.3272 -0.52710 2017 3 3 57815 -0.0189 0.3290 -0.52853 2017 3 4 57816 -0.0194 0.3309 -0.52994 2017 3 5 57817 -0.0198 0.3327 -0.53129 2017 3 6 57818 -0.0202 0.3346 -0.53264 2017 3 7 57819 -0.0205 0.3365 -0.53395 2017 3 8 57820 -0.0208 0.3383 -0.53529 2017 3 9 57821 -0.0211 0.3402 -0.53674 2017 3 10 57822 -0.0213 0.3421 -0.53829 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) 57435 -94.58 0.30 -10.55 0.03 57436 -94.51 0.30 -10.64 0.03 57437 -94.32 0.30 -10.68 0.03 57438 -94.08 0.30 -10.68 0.15 57439 -93.91 0.30 -10.68 0.01 57440 -93.87 0.30 -10.74 0.01 57441 -93.84 0.30 -10.84 0.01 57442 -93.76 0.30 -10.96 0.01 57443 -93.72 0.30 -11.06 0.01 57444 -93.84 0.30 -11.16 0.01 57445 -94.06 0.30 -11.28 0.15 57446 -94.25 0.30 -11.42 0.15 57447 -94.35 0.30 -11.58 0.15 57448 -94.43 0.30 -11.70 0.15 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 57435 -0.163 0.119 -0.058 0.030 57436 -0.146 0.119 -0.055 0.030 57437 -0.134 0.119 -0.064 0.030 57438 -0.125 0.119 -0.068 0.150 57439 -0.112 0.119 -0.054 0.010 57440 -0.107 0.119 -0.054 0.010 57441 -0.104 0.119 -0.058 0.010 57442 -0.101 0.119 -0.063 0.010 57443 -0.099 0.119 -0.039 0.010 57444 -0.107 0.119 -0.015 0.010 57445 -0.119 0.119 -0.017 0.150 57446 -0.127 0.119 -0.042 0.150 57447 -0.113 0.119 -0.081 0.150 57448 -0.090 0.119 -0.115 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).