********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 25 July 2013 Vol. XXVI No. 030 ______________________________________________________________________ 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 *********************************************************************** * There will NOT be a leap second introduced * * in UTC on 31 December 2013. * * * * As of Bulletin A Vol. XXVI No. 030, on 25 July 2013, the contri- * * bution of the US Navy Fleet Numerical Meteorology and Oceanography * * Center (FNMOC) to the Atmospheric Angular Momentum (AAM) * * inputs has been upgraded from the Navy Operational Global * * Atmospheric Prediction System (NOGAPS) to the Navy Global * * Environmental Model (NAVGEM). It is anticipated that this * * upgrade should somewhat improve the short term UT1-UTC predictions. * * * * 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 7 19 56492 0.16306 .00009 0.37471 .00009 0.055879 0.000012 13 7 20 56493 0.16383 .00009 0.37393 .00009 0.055642 0.000014 13 7 21 56494 0.16450 .00009 0.37304 .00009 0.055415 0.000015 13 7 22 56495 0.16485 .00009 0.37182 .00009 0.055147 0.000009 13 7 23 56496 0.16531 .00009 0.37038 .00009 0.054766 0.000009 13 7 24 56497 0.16592 .00009 0.36905 .00009 0.054264 0.000009 13 7 25 56498 0.16644 .00009 0.36787 .00009 0.053679 0.000009 _______________________________________________________________________ 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 = 0.0963 + 0.0865 cos A + 0.0826 sin A - 0.0158 cos C - 0.0514 sin C y = 0.3461 + 0.0749 cos A - 0.0760 sin A - 0.0514 cos C + 0.0158 sin C UT1-UTC = 0.0385 - 0.00102 (MJD - 56506) - (UT2-UT1) where A = 2*pi*(MJD-56498)/365.25 and C = 2*pi*(MJD-56498)/435. TAI-UTC(MJD 56499) = 35.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-56498)**0.80 S t = 0.00025 (MJD-56498)**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 7 26 56499 0.1670 0.3666 0.05305 2013 7 27 56500 0.1675 0.3654 0.05244 2013 7 28 56501 0.1682 0.3643 0.05194 2013 7 29 56502 0.1688 0.3631 0.05156 2013 7 30 56503 0.1694 0.3619 0.05130 2013 7 31 56504 0.1701 0.3608 0.05116 2013 8 1 56505 0.1707 0.3596 0.05113 2013 8 2 56506 0.1713 0.3584 0.05117 2013 8 3 56507 0.1718 0.3571 0.05124 2013 8 4 56508 0.1724 0.3559 0.05129 2013 8 5 56509 0.1729 0.3547 0.05131 2013 8 6 56510 0.1734 0.3534 0.05124 2013 8 7 56511 0.1739 0.3522 0.05108 2013 8 8 56512 0.1743 0.3510 0.05079 2013 8 9 56513 0.1747 0.3497 0.05036 2013 8 10 56514 0.1751 0.3484 0.04981 2013 8 11 56515 0.1755 0.3472 0.04921 2013 8 12 56516 0.1759 0.3459 0.04862 2013 8 13 56517 0.1762 0.3446 0.04807 2013 8 14 56518 0.1766 0.3433 0.04760 2013 8 15 56519 0.1769 0.3420 0.04723 2013 8 16 56520 0.1771 0.3407 0.04693 2013 8 17 56521 0.1774 0.3394 0.04664 2013 8 18 56522 0.1776 0.3380 0.04630 2013 8 19 56523 0.1778 0.3367 0.04583 2013 8 20 56524 0.1780 0.3354 0.04518 2013 8 21 56525 0.1781 0.3340 0.04436 2013 8 22 56526 0.1782 0.3327 0.04342 2013 8 23 56527 0.1783 0.3313 0.04244 2013 8 24 56528 0.1784 0.3300 0.04151 2013 8 25 56529 0.1784 0.3286 0.04070 2013 8 26 56530 0.1784 0.3273 0.04002 2013 8 27 56531 0.1784 0.3259 0.03948 2013 8 28 56532 0.1784 0.3246 0.03907 2013 8 29 56533 0.1783 0.3232 0.03874 2013 8 30 56534 0.1782 0.3219 0.03846 2013 8 31 56535 0.1781 0.3205 0.03819 2013 9 1 56536 0.1779 0.3192 0.03786 2013 9 2 56537 0.1778 0.3178 0.03746 2013 9 3 56538 0.1775 0.3165 0.03695 2013 9 4 56539 0.1773 0.3151 0.03630 2013 9 5 56540 0.1770 0.3138 0.03551 2013 9 6 56541 0.1767 0.3124 0.03459 2013 9 7 56542 0.1764 0.3111 0.03359 2013 9 8 56543 0.1761 0.3098 0.03256 2013 9 9 56544 0.1757 0.3084 0.03155 2013 9 10 56545 0.1753 0.3071 0.03060 2013 9 11 56546 0.1749 0.3058 0.02972 2013 9 12 56547 0.1744 0.3045 0.02890 2013 9 13 56548 0.1739 0.3032 0.02809 2013 9 14 56549 0.1734 0.3019 0.02724 2013 9 15 56550 0.1728 0.3006 0.02626 2013 9 16 56551 0.1723 0.2993 0.02514 2013 9 17 56552 0.1717 0.2981 0.02385 2013 9 18 56553 0.1710 0.2968 0.02242 2013 9 19 56554 0.1704 0.2955 0.02093 2013 9 20 56555 0.1697 0.2943 0.01945 2013 9 21 56556 0.1690 0.2931 0.01805 2013 9 22 56557 0.1683 0.2918 0.01679 2013 9 23 56558 0.1675 0.2906 0.01568 2013 9 24 56559 0.1667 0.2894 0.01470 2013 9 25 56560 0.1659 0.2882 0.01383 2013 9 26 56561 0.1651 0.2871 0.01301 2013 9 27 56562 0.1642 0.2859 0.01222 2013 9 28 56563 0.1633 0.2848 0.01139 2013 9 29 56564 0.1624 0.2836 0.01048 2013 9 30 56565 0.1614 0.2825 0.00947 2013 10 1 56566 0.1605 0.2814 0.00832 2013 10 2 56567 0.1595 0.2803 0.00704 2013 10 3 56568 0.1585 0.2792 0.00563 2013 10 4 56569 0.1574 0.2782 0.00412 2013 10 5 56570 0.1564 0.2771 0.00257 2013 10 6 56571 0.1553 0.2761 0.00104 2013 10 7 56572 0.1542 0.2751 -0.00042 2013 10 8 56573 0.1531 0.2741 -0.00179 2013 10 9 56574 0.1519 0.2731 -0.00306 2013 10 10 56575 0.1507 0.2722 -0.00428 2013 10 11 56576 0.1495 0.2712 -0.00551 2013 10 12 56577 0.1483 0.2703 -0.00681 2013 10 13 56578 0.1471 0.2694 -0.00822 2013 10 14 56579 0.1458 0.2685 -0.00978 2013 10 15 56580 0.1446 0.2677 -0.01145 2013 10 16 56581 0.1433 0.2668 -0.01321 2013 10 17 56582 0.1419 0.2660 -0.01498 2013 10 18 56583 0.1406 0.2652 -0.01669 2013 10 19 56584 0.1393 0.2644 -0.01829 2013 10 20 56585 0.1379 0.2637 -0.01975 2013 10 21 56586 0.1365 0.2630 -0.02107 2013 10 22 56587 0.1351 0.2622 -0.02225 2013 10 23 56588 0.1337 0.2616 -0.02335 2013 10 24 56589 0.1322 0.2609 -0.02440 2013 10 25 56590 0.1308 0.2603 -0.02545 2013 10 26 56591 0.1293 0.2596 -0.02653 2013 10 27 56592 0.1278 0.2590 -0.02769 2013 10 28 56593 0.1263 0.2585 -0.02896 2013 10 29 56594 0.1248 0.2579 -0.03034 2013 10 30 56595 0.1233 0.2574 -0.03184 2013 10 31 56596 0.1217 0.2569 -0.03343 2013 11 1 56597 0.1202 0.2564 -0.03509 2013 11 2 56598 0.1186 0.2560 -0.03675 2013 11 3 56599 0.1170 0.2555 -0.03837 2013 11 4 56600 0.1154 0.2551 -0.03991 2013 11 5 56601 0.1138 0.2548 -0.04135 2013 11 6 56602 0.1122 0.2544 -0.04272 2013 11 7 56603 0.1106 0.2541 -0.04407 2013 11 8 56604 0.1090 0.2538 -0.04547 2013 11 9 56605 0.1073 0.2535 -0.04695 2013 11 10 56606 0.1057 0.2533 -0.04854 2013 11 11 56607 0.1040 0.2531 -0.05023 2013 11 12 56608 0.1024 0.2529 -0.05198 2013 11 13 56609 0.1007 0.2527 -0.05372 2013 11 14 56610 0.0990 0.2526 -0.05542 2013 11 15 56611 0.0973 0.2525 -0.05700 2013 11 16 56612 0.0956 0.2524 -0.05846 2013 11 17 56613 0.0939 0.2523 -0.05976 2013 11 18 56614 0.0923 0.2523 -0.06093 2013 11 19 56615 0.0906 0.2523 -0.06200 2013 11 20 56616 0.0888 0.2523 -0.06301 2013 11 21 56617 0.0871 0.2524 -0.06399 2013 11 22 56618 0.0854 0.2525 -0.06500 2013 11 23 56619 0.0837 0.2526 -0.06606 2013 11 24 56620 0.0820 0.2527 -0.06720 2013 11 25 56621 0.0803 0.2529 -0.06845 2013 11 26 56622 0.0786 0.2531 -0.06980 2013 11 27 56623 0.0769 0.2533 -0.07124 2013 11 28 56624 0.0752 0.2536 -0.07274 2013 11 29 56625 0.0735 0.2539 -0.07426 2013 11 30 56626 0.0718 0.2542 -0.07577 2013 12 1 56627 0.0701 0.2545 -0.07721 2013 12 2 56628 0.0684 0.2549 -0.07856 2013 12 3 56629 0.0667 0.2552 -0.07982 2013 12 4 56630 0.0650 0.2557 -0.08104 2013 12 5 56631 0.0633 0.2561 -0.08227 2013 12 6 56632 0.0616 0.2566 -0.08357 2013 12 7 56633 0.0599 0.2571 -0.08499 2013 12 8 56634 0.0583 0.2576 -0.08650 2013 12 9 56635 0.0566 0.2582 -0.08807 2013 12 10 56636 0.0550 0.2588 -0.08963 2013 12 11 56637 0.0533 0.2594 -0.09112 2013 12 12 56638 0.0517 0.2600 -0.09250 2013 12 13 56639 0.0501 0.2607 -0.09375 2013 12 14 56640 0.0485 0.2614 -0.09485 2013 12 15 56641 0.0469 0.2621 -0.09581 2013 12 16 56642 0.0453 0.2628 -0.09666 2013 12 17 56643 0.0437 0.2636 -0.09744 2013 12 18 56644 0.0421 0.2644 -0.09818 2013 12 19 56645 0.0406 0.2652 -0.09893 2013 12 20 56646 0.0390 0.2660 -0.09974 2013 12 21 56647 0.0375 0.2669 -0.10061 2013 12 22 56648 0.0360 0.2678 -0.10158 2013 12 23 56649 0.0345 0.2687 -0.10264 2013 12 24 56650 0.0330 0.2697 -0.10379 2013 12 25 56651 0.0315 0.2707 -0.10501 2013 12 26 56652 0.0301 0.2717 -0.10626 2013 12 27 56653 0.0286 0.2727 -0.10751 2013 12 28 56654 0.0272 0.2737 -0.10873 2013 12 29 56655 0.0258 0.2748 -0.10988 2013 12 30 56656 0.0244 0.2759 -0.11096 2013 12 31 56657 0.0231 0.2770 -0.11200 2014 1 1 56658 0.0217 0.2781 -0.11304 2014 1 2 56659 0.0204 0.2793 -0.11417 2014 1 3 56660 0.0191 0.2805 -0.11542 2014 1 4 56661 0.0178 0.2817 -0.11681 2014 1 5 56662 0.0166 0.2829 -0.11830 2014 1 6 56663 0.0153 0.2842 -0.11982 2014 1 7 56664 0.0141 0.2854 -0.12128 2014 1 8 56665 0.0129 0.2867 -0.12263 2014 1 9 56666 0.0117 0.2880 -0.12384 2014 1 10 56667 0.0106 0.2894 -0.12490 2014 1 11 56668 0.0095 0.2907 -0.12581 2014 1 12 56669 0.0084 0.2921 -0.12662 2014 1 13 56670 0.0073 0.2935 -0.12734 2014 1 14 56671 0.0062 0.2949 -0.12803 2014 1 15 56672 0.0052 0.2963 -0.12872 2014 1 16 56673 0.0042 0.2977 -0.12947 2014 1 17 56674 0.0032 0.2992 -0.13029 2014 1 18 56675 0.0023 0.3007 -0.13121 2014 1 19 56676 0.0014 0.3022 -0.13223 2014 1 20 56677 0.0005 0.3037 -0.13335 2014 1 21 56678 -0.0004 0.3052 -0.13454 2014 1 22 56679 -0.0012 0.3067 -0.13578 2014 1 23 56680 -0.0020 0.3083 -0.13704 2014 1 24 56681 -0.0028 0.3099 -0.13827 2014 1 25 56682 -0.0036 0.3114 -0.13946 2014 1 26 56683 -0.0043 0.3130 -0.14060 2014 1 27 56684 -0.0050 0.3146 -0.14170 2014 1 28 56685 -0.0057 0.3163 -0.14282 2014 1 29 56686 -0.0063 0.3179 -0.14400 2014 1 30 56687 -0.0069 0.3195 -0.14533 2014 1 31 56688 -0.0075 0.3212 -0.14682 2014 2 1 56689 -0.0080 0.3229 -0.14846 2014 2 2 56690 -0.0085 0.3245 -0.15018 2014 2 3 56691 -0.0090 0.3262 -0.15189 2014 2 4 56692 -0.0095 0.3279 -0.15350 2014 2 5 56693 -0.0099 0.3296 -0.15496 2014 2 6 56694 -0.0103 0.3313 -0.15625 2014 2 7 56695 -0.0106 0.3331 -0.15738 2014 2 8 56696 -0.0110 0.3348 -0.15840 2014 2 9 56697 -0.0112 0.3365 -0.15937 2014 2 10 56698 -0.0115 0.3383 -0.16032 2014 2 11 56699 -0.0117 0.3400 -0.16133 2014 2 12 56700 -0.0119 0.3418 -0.16243 2014 2 13 56701 -0.0121 0.3435 -0.16365 2014 2 14 56702 -0.0122 0.3453 -0.16499 2014 2 15 56703 -0.0123 0.3470 -0.16645 2014 2 16 56704 -0.0124 0.3488 -0.16799 2014 2 17 56705 -0.0124 0.3506 -0.16958 2014 2 18 56706 -0.0124 0.3523 -0.17119 2014 2 19 56707 -0.0123 0.3541 -0.17276 2014 2 20 56708 -0.0122 0.3559 -0.17426 2014 2 21 56709 -0.0121 0.3576 -0.17568 2014 2 22 56710 -0.0120 0.3594 -0.17701 2014 2 23 56711 -0.0118 0.3612 -0.17824 2014 2 24 56712 -0.0116 0.3630 -0.17941 2014 2 25 56713 -0.0114 0.3647 -0.18060 2014 2 26 56714 -0.0111 0.3665 -0.18189 2014 2 27 56715 -0.0108 0.3682 -0.18334 2014 2 28 56716 -0.0104 0.3700 -0.18498 2014 3 1 56717 -0.0100 0.3718 -0.18674 2014 3 2 56718 -0.0096 0.3735 -0.18856 2014 3 3 56719 -0.0092 0.3753 -0.19035 2014 3 4 56720 -0.0087 0.3770 -0.19204 2014 3 5 56721 -0.0082 0.3787 -0.19360 2014 3 6 56722 -0.0076 0.3805 -0.19497 2014 3 7 56723 -0.0070 0.3822 -0.19615 2014 3 8 56724 -0.0064 0.3839 -0.19725 2014 3 9 56725 -0.0057 0.3856 -0.19828 2014 3 10 56726 -0.0051 0.3873 -0.19925 2014 3 11 56727 -0.0043 0.3890 -0.20024 2014 3 12 56728 -0.0036 0.3906 -0.20126 2014 3 13 56729 -0.0028 0.3923 -0.20229 2014 3 14 56730 -0.0020 0.3940 -0.20332 2014 3 15 56731 -0.0011 0.3956 -0.20447 2014 3 16 56732 -0.0002 0.3972 -0.20576 2014 3 17 56733 0.0007 0.3989 -0.20718 2014 3 18 56734 0.0016 0.4005 -0.20864 2014 3 19 56735 0.0026 0.4020 -0.21011 2014 3 20 56736 0.0036 0.4036 -0.21156 2014 3 21 56737 0.0047 0.4052 -0.21293 2014 3 22 56738 0.0057 0.4067 -0.21426 2014 3 23 56739 0.0069 0.4083 -0.21557 2014 3 24 56740 0.0080 0.4098 -0.21691 2014 3 25 56741 0.0092 0.4113 -0.21832 2014 3 26 56742 0.0104 0.4128 -0.21985 2014 3 27 56743 0.0116 0.4142 -0.22148 2014 3 28 56744 0.0128 0.4157 -0.22326 2014 3 29 56745 0.0141 0.4171 -0.22524 2014 3 30 56746 0.0154 0.4185 -0.22729 2014 3 31 56747 0.0168 0.4199 -0.22933 2014 4 1 56748 0.0182 0.4213 -0.23128 2014 4 2 56749 0.0196 0.4226 -0.23312 2014 4 3 56750 0.0210 0.4239 -0.23480 2014 4 4 56751 0.0224 0.4252 -0.23630 2014 4 5 56752 0.0239 0.4265 -0.23774 2014 4 6 56753 0.0254 0.4278 -0.23911 2014 4 7 56754 0.0270 0.4290 -0.24049 2014 4 8 56755 0.0285 0.4303 -0.24192 2014 4 9 56756 0.0301 0.4314 -0.24339 2014 4 10 56757 0.0317 0.4326 -0.24495 2014 4 11 56758 0.0334 0.4338 -0.24666 2014 4 12 56759 0.0350 0.4349 -0.24847 2014 4 13 56760 0.0367 0.4360 -0.25035 2014 4 14 56761 0.0384 0.4370 -0.25228 2014 4 15 56762 0.0402 0.4381 -0.25422 2014 4 16 56763 0.0419 0.4391 -0.25608 2014 4 17 56764 0.0437 0.4401 -0.25777 2014 4 18 56765 0.0455 0.4411 -0.25931 2014 4 19 56766 0.0473 0.4420 -0.26074 2014 4 20 56767 0.0491 0.4429 -0.26208 2014 4 21 56768 0.0510 0.4438 -0.26337 2014 4 22 56769 0.0529 0.4446 -0.26469 2014 4 23 56770 0.0548 0.4455 -0.26604 2014 4 24 56771 0.0567 0.4463 -0.26742 2014 4 25 56772 0.0586 0.4470 -0.26887 2014 4 26 56773 0.0606 0.4478 -0.27046 2014 4 27 56774 0.0625 0.4485 -0.27204 2014 4 28 56775 0.0645 0.4491 -0.27352 2014 4 29 56776 0.0665 0.4498 -0.27490 2014 4 30 56777 0.0685 0.4504 -0.27612 2014 5 1 56778 0.0706 0.4510 -0.27714 2014 5 2 56779 0.0726 0.4515 -0.27801 2014 5 3 56780 0.0747 0.4521 -0.27881 2014 5 4 56781 0.0767 0.4526 -0.27953 2014 5 5 56782 0.0788 0.4530 -0.28025 2014 5 6 56783 0.0809 0.4534 -0.28096 2014 5 7 56784 0.0830 0.4538 -0.28172 2014 5 8 56785 0.0851 0.4542 -0.28252 2014 5 9 56786 0.0873 0.4545 -0.28338 2014 5 10 56787 0.0894 0.4548 -0.28426 2014 5 11 56788 0.0915 0.4551 -0.28514 2014 5 12 56789 0.0937 0.4553 -0.28599 2014 5 13 56790 0.0958 0.4555 -0.28678 2014 5 14 56791 0.0980 0.4557 -0.28753 2014 5 15 56792 0.1002 0.4558 -0.28820 2014 5 16 56793 0.1024 0.4559 -0.28882 2014 5 17 56794 0.1046 0.4560 -0.28946 2014 5 18 56795 0.1067 0.4560 -0.29012 2014 5 19 56796 0.1089 0.4560 -0.29086 2014 5 20 56797 0.1111 0.4559 -0.29172 2014 5 21 56798 0.1133 0.4559 -0.29269 2014 5 22 56799 0.1155 0.4558 -0.29373 2014 5 23 56800 0.1177 0.4556 -0.29479 2014 5 24 56801 0.1199 0.4554 -0.29585 2014 5 25 56802 0.1221 0.4552 -0.29684 2014 5 26 56803 0.1244 0.4550 -0.29768 2014 5 27 56804 0.1266 0.4547 -0.29834 2014 5 28 56805 0.1288 0.4544 -0.29880 2014 5 29 56806 0.1310 0.4540 -0.29912 2014 5 30 56807 0.1332 0.4536 -0.29937 2014 5 31 56808 0.1353 0.4532 -0.29958 2014 6 1 56809 0.1375 0.4528 -0.29978 2014 6 2 56810 0.1397 0.4523 -0.30002 2014 6 3 56811 0.1419 0.4518 -0.30040 2014 6 4 56812 0.1441 0.4512 -0.30091 2014 6 5 56813 0.1462 0.4506 -0.30155 2014 6 6 56814 0.1484 0.4500 -0.30226 2014 6 7 56815 0.1505 0.4493 -0.30304 2014 6 8 56816 0.1527 0.4486 -0.30378 2014 6 9 56817 0.1548 0.4479 -0.30443 2014 6 10 56818 0.1569 0.4472 -0.30497 2014 6 11 56819 0.1590 0.4464 -0.30542 2014 6 12 56820 0.1611 0.4456 -0.30578 2014 6 13 56821 0.1632 0.4447 -0.30606 2014 6 14 56822 0.1653 0.4438 -0.30643 2014 6 15 56823 0.1673 0.4429 -0.30692 2014 6 16 56824 0.1694 0.4419 -0.30751 2014 6 17 56825 0.1714 0.4409 -0.30826 2014 6 18 56826 0.1734 0.4399 -0.30912 2014 6 19 56827 0.1754 0.4389 -0.31006 2014 6 20 56828 0.1774 0.4378 -0.31093 2014 6 21 56829 0.1794 0.4367 -0.31165 2014 6 22 56830 0.1813 0.4355 -0.31221 2014 6 23 56831 0.1833 0.4343 -0.31261 2014 6 24 56832 0.1852 0.4331 -0.31282 2014 6 25 56833 0.1871 0.4319 -0.31285 2014 6 26 56834 0.1890 0.4306 -0.31274 2014 6 27 56835 0.1908 0.4293 -0.31262 2014 6 28 56836 0.1926 0.4280 -0.31247 2014 6 29 56837 0.1945 0.4266 -0.31233 2014 6 30 56838 0.1962 0.4253 -0.31231 2014 7 1 56839 0.1980 0.4238 -0.31242 2014 7 2 56840 0.1998 0.4224 -0.31257 2014 7 3 56841 0.2015 0.4209 -0.31277 2014 7 4 56842 0.2032 0.4194 -0.31307 2014 7 5 56843 0.2048 0.4179 -0.31338 2014 7 6 56844 0.2065 0.4164 -0.31372 2014 7 7 56845 0.2081 0.4148 -0.31401 2014 7 8 56846 0.2097 0.4132 -0.31419 2014 7 9 56847 0.2113 0.4116 -0.31424 2014 7 10 56848 0.2128 0.4099 -0.31418 2014 7 11 56849 0.2143 0.4082 -0.31412 2014 7 12 56850 0.2158 0.4065 -0.31412 2014 7 13 56851 0.2172 0.4048 -0.31427 2014 7 14 56852 0.2187 0.4030 -0.31455 2014 7 15 56853 0.2201 0.4013 -0.31498 2014 7 16 56854 0.2214 0.3995 -0.31549 2014 7 17 56855 0.2227 0.3977 -0.31601 2014 7 18 56856 0.2240 0.3958 -0.31647 2014 7 19 56857 0.2253 0.3940 -0.31683 2014 7 20 56858 0.2266 0.3921 -0.31705 2014 7 21 56859 0.2278 0.3902 -0.31712 2014 7 22 56860 0.2289 0.3883 -0.31705 2014 7 23 56861 0.2301 0.3863 -0.31688 2014 7 24 56862 0.2312 0.3844 -0.31669 2014 7 25 56863 0.2322 0.3824 -0.31653 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) 56476 -81.09 0.30 -13.34 0.05 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 56476 -0.020 0.119 -0.226 0.050 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).