********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 8 August 2013 Vol. XXVI No. 032 ______________________________________________________________________ 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 11 April 2013 at 0000 UTC = +0.0 seconds beginning 22 Aug 2013 at 0000 UTC Beginning 1 July 2012: TAI-UTC = 35.000 000 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 * *********************************************************************** ________________________________________________________________________ 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 13 8 2 56506 0.17156 .00009 0.35990 .00009 0.050878 0.000013 13 8 3 56507 0.17181 .00009 0.35875 .00009 0.050925 0.000015 13 8 4 56508 0.17218 .00009 0.35748 .00009 0.050949 0.000013 13 8 5 56509 0.17241 .00009 0.35627 .00009 0.050922 0.000010 13 8 6 56510 0.17255 .00009 0.35524 .00009 0.050799 0.000008 13 8 7 56511 0.17283 .00009 0.35427 .00009 0.050560 0.000007 13 8 8 56512 0.17337 .00009 0.35339 .00009 0.050236 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 = 0.0986 + 0.1019 cos A + 0.0533 sin A - 0.0273 cos C - 0.0413 sin C y = 0.3478 + 0.0497 cos A - 0.0902 sin A - 0.0413 cos C + 0.0273 sin C UT1-UTC = 0.0218 - 0.00103 (MJD - 56520) - (UT2-UT1) where A = 2*pi*(MJD-56512)/365.25 and C = 2*pi*(MJD-56512)/435. TAI-UTC(MJD 56513) = 35.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-56512)**0.80 S t = 0.00025 (MJD-56512)**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) 2013 8 9 56513 0.1738 0.3525 0.04981 2013 8 10 56514 0.1742 0.3516 0.04930 2013 8 11 56515 0.1746 0.3506 0.04873 2013 8 12 56516 0.1750 0.3495 0.04817 2013 8 13 56517 0.1753 0.3483 0.04768 2013 8 14 56518 0.1756 0.3471 0.04728 2013 8 15 56519 0.1759 0.3458 0.04697 2013 8 16 56520 0.1762 0.3446 0.04671 2013 8 17 56521 0.1764 0.3433 0.04645 2013 8 18 56522 0.1767 0.3421 0.04611 2013 8 19 56523 0.1769 0.3409 0.04560 2013 8 20 56524 0.1771 0.3396 0.04491 2013 8 21 56525 0.1773 0.3384 0.04404 2013 8 22 56526 0.1774 0.3372 0.04305 2013 8 23 56527 0.1776 0.3359 0.04203 2013 8 24 56528 0.1777 0.3346 0.04106 2013 8 25 56529 0.1778 0.3333 0.04020 2013 8 26 56530 0.1779 0.3320 0.03949 2013 8 27 56531 0.1779 0.3307 0.03892 2013 8 28 56532 0.1780 0.3294 0.03848 2013 8 29 56533 0.1779 0.3281 0.03814 2013 8 30 56534 0.1779 0.3268 0.03782 2013 8 31 56535 0.1778 0.3254 0.03750 2013 9 1 56536 0.1777 0.3241 0.03711 2013 9 2 56537 0.1776 0.3228 0.03663 2013 9 3 56538 0.1775 0.3215 0.03603 2013 9 4 56539 0.1773 0.3201 0.03530 2013 9 5 56540 0.1771 0.3188 0.03444 2013 9 6 56541 0.1769 0.3175 0.03349 2013 9 7 56542 0.1766 0.3162 0.03248 2013 9 8 56543 0.1763 0.3148 0.03146 2013 9 9 56544 0.1760 0.3135 0.03048 2013 9 10 56545 0.1757 0.3122 0.02956 2013 9 11 56546 0.1753 0.3109 0.02872 2013 9 12 56547 0.1749 0.3096 0.02792 2013 9 13 56548 0.1745 0.3083 0.02713 2013 9 14 56549 0.1740 0.3070 0.02629 2013 9 15 56550 0.1735 0.3057 0.02532 2013 9 16 56551 0.1730 0.3044 0.02421 2013 9 17 56552 0.1725 0.3031 0.02293 2013 9 18 56553 0.1719 0.3019 0.02152 2013 9 19 56554 0.1713 0.3006 0.02004 2013 9 20 56555 0.1707 0.2993 0.01859 2013 9 21 56556 0.1701 0.2981 0.01723 2013 9 22 56557 0.1694 0.2969 0.01601 2013 9 23 56558 0.1687 0.2956 0.01495 2013 9 24 56559 0.1680 0.2944 0.01404 2013 9 25 56560 0.1672 0.2932 0.01323 2013 9 26 56561 0.1665 0.2920 0.01247 2013 9 27 56562 0.1657 0.2909 0.01172 2013 9 28 56563 0.1648 0.2897 0.01093 2013 9 29 56564 0.1640 0.2885 0.01005 2013 9 30 56565 0.1631 0.2874 0.00906 2013 10 1 56566 0.1622 0.2863 0.00792 2013 10 2 56567 0.1613 0.2852 0.00663 2013 10 3 56568 0.1603 0.2841 0.00522 2013 10 4 56569 0.1593 0.2830 0.00371 2013 10 5 56570 0.1583 0.2819 0.00215 2013 10 6 56571 0.1573 0.2809 0.00060 2013 10 7 56572 0.1563 0.2798 -0.00089 2013 10 8 56573 0.1552 0.2788 -0.00228 2013 10 9 56574 0.1541 0.2778 -0.00359 2013 10 10 56575 0.1530 0.2768 -0.00484 2013 10 11 56576 0.1519 0.2758 -0.00610 2013 10 12 56577 0.1507 0.2749 -0.00744 2013 10 13 56578 0.1495 0.2740 -0.00888 2013 10 14 56579 0.1483 0.2730 -0.01046 2013 10 15 56580 0.1471 0.2722 -0.01215 2013 10 16 56581 0.1459 0.2713 -0.01392 2013 10 17 56582 0.1446 0.2704 -0.01570 2013 10 18 56583 0.1433 0.2696 -0.01742 2013 10 19 56584 0.1420 0.2688 -0.01903 2013 10 20 56585 0.1407 0.2680 -0.02049 2013 10 21 56586 0.1394 0.2672 -0.02181 2013 10 22 56587 0.1380 0.2665 -0.02300 2013 10 23 56588 0.1366 0.2657 -0.02412 2013 10 24 56589 0.1353 0.2650 -0.02519 2013 10 25 56590 0.1339 0.2644 -0.02627 2013 10 26 56591 0.1324 0.2637 -0.02739 2013 10 27 56592 0.1310 0.2631 -0.02860 2013 10 28 56593 0.1295 0.2624 -0.02992 2013 10 29 56594 0.1281 0.2618 -0.03135 2013 10 30 56595 0.1266 0.2613 -0.03289 2013 10 31 56596 0.1251 0.2607 -0.03454 2013 11 1 56597 0.1236 0.2602 -0.03624 2013 11 2 56598 0.1221 0.2597 -0.03795 2013 11 3 56599 0.1205 0.2593 -0.03961 2013 11 4 56600 0.1190 0.2588 -0.04119 2013 11 5 56601 0.1174 0.2584 -0.04266 2013 11 6 56602 0.1159 0.2580 -0.04406 2013 11 7 56603 0.1143 0.2576 -0.04544 2013 11 8 56604 0.1127 0.2573 -0.04685 2013 11 9 56605 0.1111 0.2570 -0.04835 2013 11 10 56606 0.1095 0.2567 -0.04995 2013 11 11 56607 0.1079 0.2564 -0.05165 2013 11 12 56608 0.1062 0.2562 -0.05340 2013 11 13 56609 0.1046 0.2560 -0.05515 2013 11 14 56610 0.1030 0.2558 -0.05684 2013 11 15 56611 0.1013 0.2556 -0.05841 2013 11 16 56612 0.0997 0.2555 -0.05984 2013 11 17 56613 0.0980 0.2554 -0.06112 2013 11 18 56614 0.0963 0.2553 -0.06227 2013 11 19 56615 0.0947 0.2552 -0.06331 2013 11 20 56616 0.0930 0.2552 -0.06428 2013 11 21 56617 0.0913 0.2552 -0.06523 2013 11 22 56618 0.0896 0.2552 -0.06620 2013 11 23 56619 0.0880 0.2553 -0.06723 2013 11 24 56620 0.0863 0.2554 -0.06835 2013 11 25 56621 0.0846 0.2555 -0.06960 2013 11 26 56622 0.0829 0.2556 -0.07095 2013 11 27 56623 0.0812 0.2558 -0.07240 2013 11 28 56624 0.0795 0.2560 -0.07391 2013 11 29 56625 0.0779 0.2562 -0.07545 2013 11 30 56626 0.0762 0.2565 -0.07697 2013 12 1 56627 0.0745 0.2567 -0.07843 2013 12 2 56628 0.0728 0.2571 -0.07980 2013 12 3 56629 0.0712 0.2574 -0.08109 2013 12 4 56630 0.0695 0.2577 -0.08233 2013 12 5 56631 0.0678 0.2581 -0.08359 2013 12 6 56632 0.0662 0.2586 -0.08492 2013 12 7 56633 0.0645 0.2590 -0.08637 2013 12 8 56634 0.0628 0.2595 -0.08791 2013 12 9 56635 0.0612 0.2600 -0.08951 2013 12 10 56636 0.0596 0.2605 -0.09110 2013 12 11 56637 0.0579 0.2610 -0.09262 2013 12 12 56638 0.0563 0.2616 -0.09403 2013 12 13 56639 0.0547 0.2622 -0.09531 2013 12 14 56640 0.0531 0.2629 -0.09643 2013 12 15 56641 0.0515 0.2635 -0.09742 2013 12 16 56642 0.0499 0.2642 -0.09830 2013 12 17 56643 0.0484 0.2649 -0.09910 2013 12 18 56644 0.0468 0.2656 -0.09988 2013 12 19 56645 0.0452 0.2664 -0.10066 2013 12 20 56646 0.0437 0.2672 -0.10149 2013 12 21 56647 0.0422 0.2680 -0.10240 2013 12 22 56648 0.0407 0.2689 -0.10339 2013 12 23 56649 0.0392 0.2697 -0.10448 2013 12 24 56650 0.0377 0.2706 -0.10566 2013 12 25 56651 0.0362 0.2715 -0.10690 2013 12 26 56652 0.0348 0.2725 -0.10818 2013 12 27 56653 0.0333 0.2734 -0.10946 2013 12 28 56654 0.0319 0.2744 -0.11070 2013 12 29 56655 0.0305 0.2754 -0.11187 2013 12 30 56656 0.0291 0.2765 -0.11297 2013 12 31 56657 0.0277 0.2775 -0.11403 2014 1 1 56658 0.0264 0.2786 -0.11509 2014 1 2 56659 0.0251 0.2797 -0.11623 2014 1 3 56660 0.0237 0.2808 -0.11749 2014 1 4 56661 0.0225 0.2820 -0.11889 2014 1 5 56662 0.0212 0.2832 -0.12038 2014 1 6 56663 0.0199 0.2844 -0.12190 2014 1 7 56664 0.0187 0.2856 -0.12336 2014 1 8 56665 0.0175 0.2868 -0.12472 2014 1 9 56666 0.0163 0.2881 -0.12592 2014 1 10 56667 0.0151 0.2894 -0.12698 2014 1 11 56668 0.0140 0.2906 -0.12789 2014 1 12 56669 0.0129 0.2920 -0.12868 2014 1 13 56670 0.0118 0.2933 -0.12940 2014 1 14 56671 0.0107 0.2947 -0.13008 2014 1 15 56672 0.0097 0.2960 -0.13076 2014 1 16 56673 0.0086 0.2974 -0.13149 2014 1 17 56674 0.0076 0.2988 -0.13230 2014 1 18 56675 0.0067 0.3003 -0.13321 2014 1 19 56676 0.0057 0.3017 -0.13421 2014 1 20 56677 0.0048 0.3032 -0.13531 2014 1 21 56678 0.0039 0.3046 -0.13648 2014 1 22 56679 0.0030 0.3061 -0.13770 2014 1 23 56680 0.0022 0.3076 -0.13893 2014 1 24 56681 0.0014 0.3092 -0.14014 2014 1 25 56682 0.0006 0.3107 -0.14129 2014 1 26 56683 -0.0001 0.3122 -0.14239 2014 1 27 56684 -0.0009 0.3138 -0.14345 2014 1 28 56685 -0.0016 0.3154 -0.14452 2014 1 29 56686 -0.0022 0.3170 -0.14566 2014 1 30 56687 -0.0029 0.3186 -0.14693 2014 1 31 56688 -0.0035 0.3202 -0.14838 2014 2 1 56689 -0.0041 0.3218 -0.14998 2014 2 2 56690 -0.0046 0.3234 -0.15168 2014 2 3 56691 -0.0051 0.3251 -0.15339 2014 2 4 56692 -0.0056 0.3267 -0.15503 2014 2 5 56693 -0.0061 0.3284 -0.15653 2014 2 6 56694 -0.0065 0.3301 -0.15788 2014 2 7 56695 -0.0069 0.3318 -0.15908 2014 2 8 56696 -0.0073 0.3334 -0.16016 2014 2 9 56697 -0.0076 0.3351 -0.16115 2014 2 10 56698 -0.0079 0.3368 -0.16210 2014 2 11 56699 -0.0082 0.3386 -0.16306 2014 2 12 56700 -0.0084 0.3403 -0.16405 2014 2 13 56701 -0.0086 0.3420 -0.16512 2014 2 14 56702 -0.0088 0.3437 -0.16628 2014 2 15 56703 -0.0089 0.3455 -0.16753 2014 2 16 56704 -0.0090 0.3472 -0.16886 2014 2 17 56705 -0.0091 0.3489 -0.17025 2014 2 18 56706 -0.0091 0.3507 -0.17167 2014 2 19 56707 -0.0091 0.3524 -0.17308 2014 2 20 56708 -0.0091 0.3541 -0.17443 2014 2 21 56709 -0.0090 0.3559 -0.17569 2014 2 22 56710 -0.0089 0.3576 -0.17686 2014 2 23 56711 -0.0088 0.3594 -0.17794 2014 2 24 56712 -0.0086 0.3611 -0.17900 2014 2 25 56713 -0.0084 0.3629 -0.18009 2014 2 26 56714 -0.0082 0.3646 -0.18130 2014 2 27 56715 -0.0079 0.3664 -0.18271 2014 2 28 56716 -0.0076 0.3681 -0.18434 2014 3 1 56717 -0.0073 0.3698 -0.18617 2014 3 2 56718 -0.0070 0.3716 -0.18813 2014 3 3 56719 -0.0066 0.3733 -0.19013 2014 3 4 56720 -0.0061 0.3750 -0.19209 2014 3 5 56721 -0.0057 0.3767 -0.19397 2014 3 6 56722 -0.0052 0.3784 -0.19574 2014 3 7 56723 -0.0046 0.3801 -0.19743 2014 3 8 56724 -0.0041 0.3818 -0.19904 2014 3 9 56725 -0.0035 0.3835 -0.20061 2014 3 10 56726 -0.0028 0.3852 -0.20215 2014 3 11 56727 -0.0022 0.3869 -0.20369 2014 3 12 56728 -0.0015 0.3885 -0.20523 2014 3 13 56729 -0.0008 0.3902 -0.20680 2014 3 14 56730 0.0000 0.3919 -0.20841 2014 3 15 56731 0.0008 0.3935 -0.21008 2014 3 16 56732 0.0016 0.3951 -0.21180 2014 3 17 56733 0.0025 0.3967 -0.21359 2014 3 18 56734 0.0034 0.3983 -0.21542 2014 3 19 56735 0.0043 0.3999 -0.21721 2014 3 20 56736 0.0052 0.4015 -0.21889 2014 3 21 56737 0.0062 0.4030 -0.22047 2014 3 22 56738 0.0072 0.4046 -0.22196 2014 3 23 56739 0.0083 0.4061 -0.22332 2014 3 24 56740 0.0094 0.4076 -0.22464 2014 3 25 56741 0.0105 0.4091 -0.22602 2014 3 26 56742 0.0116 0.4106 -0.22755 2014 3 27 56743 0.0128 0.4121 -0.22926 2014 3 28 56744 0.0140 0.4135 -0.23109 2014 3 29 56745 0.0152 0.4150 -0.23302 2014 3 30 56746 0.0164 0.4164 -0.23496 2014 3 31 56747 0.0177 0.4178 -0.23683 2014 4 1 56748 0.0190 0.4192 -0.23858 2014 4 2 56749 0.0204 0.4205 -0.24018 2014 4 3 56750 0.0217 0.4219 -0.24161 2014 4 4 56751 0.0231 0.4232 -0.24285 2014 4 5 56752 0.0246 0.4245 -0.24402 2014 4 6 56753 0.0260 0.4257 -0.24514 2014 4 7 56754 0.0275 0.4270 -0.24622 2014 4 8 56755 0.0290 0.4282 -0.24731 2014 4 9 56756 0.0305 0.4294 -0.24845 2014 4 10 56757 0.0321 0.4306 -0.24959 2014 4 11 56758 0.0336 0.4318 -0.25073 2014 4 12 56759 0.0352 0.4329 -0.25197 2014 4 13 56760 0.0369 0.4340 -0.25332 2014 4 14 56761 0.0385 0.4351 -0.25476 2014 4 15 56762 0.0402 0.4362 -0.25622 2014 4 16 56763 0.0419 0.4372 -0.25764 2014 4 17 56764 0.0436 0.4382 -0.25901 2014 4 18 56765 0.0453 0.4392 -0.26031 2014 4 19 56766 0.0471 0.4402 -0.26155 2014 4 20 56767 0.0489 0.4411 -0.26279 2014 4 21 56768 0.0507 0.4420 -0.26407 2014 4 22 56769 0.0525 0.4429 -0.26544 2014 4 23 56770 0.0543 0.4438 -0.26691 2014 4 24 56771 0.0562 0.4446 -0.26846 2014 4 25 56772 0.0580 0.4454 -0.27012 2014 4 26 56773 0.0599 0.4462 -0.27189 2014 4 27 56774 0.0618 0.4469 -0.27368 2014 4 28 56775 0.0638 0.4476 -0.27541 2014 4 29 56776 0.0657 0.4483 -0.27703 2014 4 30 56777 0.0677 0.4489 -0.27853 2014 5 1 56778 0.0696 0.4496 -0.27988 2014 5 2 56779 0.0716 0.4501 -0.28107 2014 5 3 56780 0.0736 0.4507 -0.28222 2014 5 4 56781 0.0756 0.4512 -0.28332 2014 5 5 56782 0.0777 0.4517 -0.28443 2014 5 6 56783 0.0797 0.4522 -0.28560 2014 5 7 56784 0.0818 0.4526 -0.28681 2014 5 8 56785 0.0838 0.4530 -0.28813 2014 5 9 56786 0.0859 0.4534 -0.28955 2014 5 10 56787 0.0880 0.4537 -0.29105 2014 5 11 56788 0.0901 0.4540 -0.29260 2014 5 12 56789 0.0922 0.4543 -0.29416 2014 5 13 56790 0.0943 0.4545 -0.29570 2014 5 14 56791 0.0964 0.4547 -0.29715 2014 5 15 56792 0.0985 0.4549 -0.29841 2014 5 16 56793 0.1007 0.4551 -0.29951 2014 5 17 56794 0.1028 0.4552 -0.30054 2014 5 18 56795 0.1049 0.4552 -0.30149 2014 5 19 56796 0.1071 0.4553 -0.30244 2014 5 20 56797 0.1092 0.4553 -0.30343 2014 5 21 56798 0.1114 0.4553 -0.30441 2014 5 22 56799 0.1136 0.4552 -0.30539 2014 5 23 56800 0.1157 0.4551 -0.30640 2014 5 24 56801 0.1179 0.4550 -0.30745 2014 5 25 56802 0.1200 0.4548 -0.30844 2014 5 26 56803 0.1222 0.4546 -0.30929 2014 5 27 56804 0.1244 0.4544 -0.31003 2014 5 28 56805 0.1265 0.4541 -0.31061 2014 5 29 56806 0.1287 0.4538 -0.31101 2014 5 30 56807 0.1308 0.4535 -0.31129 2014 5 31 56808 0.1330 0.4531 -0.31153 2014 6 1 56809 0.1351 0.4527 -0.31172 2014 6 2 56810 0.1373 0.4523 -0.31193 2014 6 3 56811 0.1394 0.4518 -0.31214 2014 6 4 56812 0.1416 0.4513 -0.31239 2014 6 5 56813 0.1437 0.4508 -0.31269 2014 6 6 56814 0.1458 0.4502 -0.31304 2014 6 7 56815 0.1479 0.4496 -0.31338 2014 6 8 56816 0.1500 0.4490 -0.31370 2014 6 9 56817 0.1521 0.4483 -0.31396 2014 6 10 56818 0.1542 0.4476 -0.31416 2014 6 11 56819 0.1563 0.4469 -0.31430 2014 6 12 56820 0.1584 0.4462 -0.31438 2014 6 13 56821 0.1604 0.4454 -0.31444 2014 6 14 56822 0.1625 0.4445 -0.31457 2014 6 15 56823 0.1645 0.4437 -0.31476 2014 6 16 56824 0.1665 0.4428 -0.31508 2014 6 17 56825 0.1685 0.4418 -0.31553 2014 6 18 56826 0.1705 0.4409 -0.31608 2014 6 19 56827 0.1725 0.4399 -0.31667 2014 6 20 56828 0.1745 0.4389 -0.31722 2014 6 21 56829 0.1764 0.4378 -0.31770 2014 6 22 56830 0.1784 0.4367 -0.31807 2014 6 23 56831 0.1803 0.4356 -0.31827 2014 6 24 56832 0.1822 0.4345 -0.31829 2014 6 25 56833 0.1840 0.4333 -0.31814 2014 6 26 56834 0.1859 0.4321 -0.31789 2014 6 27 56835 0.1877 0.4308 -0.31760 2014 6 28 56836 0.1896 0.4296 -0.31731 2014 6 29 56837 0.1914 0.4283 -0.31706 2014 6 30 56838 0.1931 0.4270 -0.31687 2014 7 1 56839 0.1949 0.4256 -0.31683 2014 7 2 56840 0.1966 0.4242 -0.31694 2014 7 3 56841 0.1983 0.4228 -0.31717 2014 7 4 56842 0.2000 0.4214 -0.31747 2014 7 5 56843 0.2017 0.4199 -0.31782 2014 7 6 56844 0.2033 0.4184 -0.31812 2014 7 7 56845 0.2049 0.4169 -0.31831 2014 7 8 56846 0.2065 0.4154 -0.31841 2014 7 9 56847 0.2081 0.4138 -0.31842 2014 7 10 56848 0.2096 0.4122 -0.31837 2014 7 11 56849 0.2111 0.4106 -0.31831 2014 7 12 56850 0.2126 0.4090 -0.31839 2014 7 13 56851 0.2141 0.4073 -0.31865 2014 7 14 56852 0.2155 0.4056 -0.31906 2014 7 15 56853 0.2169 0.4039 -0.31965 2014 7 16 56854 0.2183 0.4022 -0.32035 2014 7 17 56855 0.2196 0.4004 -0.32109 2014 7 18 56856 0.2209 0.3986 -0.32174 2014 7 19 56857 0.2222 0.3968 -0.32217 2014 7 20 56858 0.2234 0.3950 -0.32243 2014 7 21 56859 0.2246 0.3932 -0.32253 2014 7 22 56860 0.2258 0.3913 -0.32246 2014 7 23 56861 0.2270 0.3894 -0.32225 2014 7 24 56862 0.2281 0.3875 -0.32195 2014 7 25 56863 0.2292 0.3856 -0.32167 2014 7 26 56864 0.2302 0.3837 -0.32142 2014 7 27 56865 0.2312 0.3817 -0.32120 2014 7 28 56866 0.2322 0.3798 -0.32115 2014 7 29 56867 0.2332 0.3778 -0.32122 2014 7 30 56868 0.2341 0.3758 -0.32136 2014 7 31 56869 0.2350 0.3738 -0.32155 2014 8 1 56870 0.2358 0.3717 -0.32181 2014 8 2 56871 0.2366 0.3697 -0.32209 2014 8 3 56872 0.2374 0.3676 -0.32238 2014 8 4 56873 0.2381 0.3656 -0.32263 2014 8 5 56874 0.2388 0.3635 -0.32277 2014 8 6 56875 0.2395 0.3614 -0.32280 2014 8 7 56876 0.2401 0.3593 -0.32278 2014 8 8 56877 0.2407 0.3572 -0.32280 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) 56493 -84.44 0.30 -13.21 0.09 56494 -84.39 0.11 -13.45 0.09 56495 -84.46 0.11 -13.46 0.09 56496 -84.66 0.30 -13.26 0.06 56497 -84.81 0.30 -13.09 0.06 56498 -84.87 0.30 -13.09 0.06 56499 -85.09 0.30 -13.15 0.06 56500 -85.66 0.30 -13.12 0.15 56501 -86.33 0.30 -13.04 0.15 56502 -86.65 0.30 -13.06 0.15 56503 -86.52 0.30 -13.18 0.15 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 56493 -0.101 0.119 -0.256 0.090 56494 -0.124 0.044 -0.235 0.090 56495 -0.159 0.044 -0.238 0.090 56496 -0.192 0.119 -0.248 0.060 56497 -0.215 0.119 -0.249 0.060 56498 -0.237 0.119 -0.241 0.060 56499 -0.268 0.119 -0.229 0.060 56500 -0.311 0.119 -0.203 0.150 56501 -0.357 0.119 -0.166 0.150 56502 -0.393 0.119 -0.155 0.150 56503 -0.394 0.119 -0.159 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).