********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 19 August 2010 Vol. XXIII No. 033 ______________________________________________________________________ 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 3 June 2010 at 0000 UTC Beginning 1 January 2009: TAI-UTC(BIPM) = 34.000 000 seconds ________________________________________________________________________ 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 10 8 13 55421 0.16663 .00010 0.45290 .00009 -0.049453 0.000008 10 8 14 55422 0.16897 .00009 0.45135 .00009 -0.050077 0.000008 10 8 15 55423 0.17144 .00009 0.44959 .00009 -0.050484 0.000008 10 8 16 55424 0.17449 .00010 0.44802 .00009 -0.050630 0.000006 10 8 17 55425 0.17763 .00009 0.44696 .00009 -0.050532 0.000005 10 8 18 55426 0.18021 .00009 0.44598 .00009 -0.050256 0.000005 10 8 19 55427 0.18250 .00009 0.44484 .00009 -0.049895 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 = 0.0972 + 0.1154 cos A + 0.0380 sin A - 0.0411 cos C + 0.0729 sin C y = 0.3418 + 0.0313 cos A - 0.1043 sin A + 0.0729 cos C + 0.0411 sin C UT1-UTC = -0.0677 - 0.00081 (MJD - 55435) - (UT2-UT1) where A = 2*pi*(MJD-55427)/365.25 and C = 2*pi*(MJD-55427)/435. TAI-UTC(MJD 55428) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55427)**0.80 S t = 0.00025 (MJD-55427)**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) 2010 8 20 55428 0.1844 0.4437 -0.04953 2010 8 21 55429 0.1863 0.4425 -0.04924 2010 8 22 55430 0.1880 0.4411 -0.04904 2010 8 23 55431 0.1896 0.4398 -0.04897 2010 8 24 55432 0.1911 0.4384 -0.04902 2010 8 25 55433 0.1925 0.4370 -0.04918 2010 8 26 55434 0.1939 0.4355 -0.04943 2010 8 27 55435 0.1952 0.4340 -0.04971 2010 8 28 55436 0.1965 0.4325 -0.04996 2010 8 29 55437 0.1978 0.4310 -0.05015 2010 8 30 55438 0.1990 0.4295 -0.05027 2010 8 31 55439 0.2002 0.4279 -0.05030 2010 9 1 55440 0.2013 0.4263 -0.05026 2010 9 2 55441 0.2025 0.4247 -0.05018 2010 9 3 55442 0.2036 0.4231 -0.05014 2010 9 4 55443 0.2046 0.4214 -0.05021 2010 9 5 55444 0.2056 0.4198 -0.05049 2010 9 6 55445 0.2066 0.4181 -0.05106 2010 9 7 55446 0.2076 0.4164 -0.05192 2010 9 8 55447 0.2085 0.4147 -0.05302 2010 9 9 55448 0.2094 0.4130 -0.05420 2010 9 10 55449 0.2103 0.4113 -0.05532 2010 9 11 55450 0.2111 0.4095 -0.05625 2010 9 12 55451 0.2119 0.4078 -0.05690 2010 9 13 55452 0.2127 0.4060 -0.05729 2010 9 14 55453 0.2135 0.4042 -0.05747 2010 9 15 55454 0.2142 0.4025 -0.05755 2010 9 16 55455 0.2148 0.4007 -0.05762 2010 9 17 55456 0.2155 0.3988 -0.05777 2010 9 18 55457 0.2161 0.3970 -0.05801 2010 9 19 55458 0.2167 0.3952 -0.05837 2010 9 20 55459 0.2172 0.3934 -0.05887 2010 9 21 55460 0.2177 0.3915 -0.05950 2010 9 22 55461 0.2182 0.3897 -0.06021 2010 9 23 55462 0.2186 0.3878 -0.06096 2010 9 24 55463 0.2190 0.3860 -0.06171 2010 9 25 55464 0.2194 0.3841 -0.06241 2010 9 26 55465 0.2197 0.3822 -0.06302 2010 9 27 55466 0.2200 0.3803 -0.06351 2010 9 28 55467 0.2203 0.3785 -0.06389 2010 9 29 55468 0.2206 0.3766 -0.06420 2010 9 30 55469 0.2208 0.3747 -0.06448 2010 10 1 55470 0.2209 0.3728 -0.06483 2010 10 2 55471 0.2211 0.3709 -0.06533 2010 10 3 55472 0.2212 0.3690 -0.06607 2010 10 4 55473 0.2212 0.3671 -0.06711 2010 10 5 55474 0.2213 0.3652 -0.06841 2010 10 6 55475 0.2213 0.3633 -0.06990 2010 10 7 55476 0.2213 0.3614 -0.07144 2010 10 8 55477 0.2212 0.3595 -0.07288 2010 10 9 55478 0.2211 0.3576 -0.07412 2010 10 10 55479 0.2210 0.3557 -0.07510 2010 10 11 55480 0.2208 0.3538 -0.07586 2010 10 12 55481 0.2206 0.3519 -0.07649 2010 10 13 55482 0.2204 0.3500 -0.07709 2010 10 14 55483 0.2201 0.3482 -0.07772 2010 10 15 55484 0.2198 0.3463 -0.07846 2010 10 16 55485 0.2195 0.3444 -0.07933 2010 10 17 55486 0.2191 0.3425 -0.08033 2010 10 18 55487 0.2188 0.3407 -0.08146 2010 10 19 55488 0.2183 0.3388 -0.08267 2010 10 20 55489 0.2179 0.3370 -0.08395 2010 10 21 55490 0.2174 0.3351 -0.08522 2010 10 22 55491 0.2169 0.3333 -0.08643 2010 10 23 55492 0.2163 0.3315 -0.08754 2010 10 24 55493 0.2158 0.3297 -0.08853 2010 10 25 55494 0.2152 0.3279 -0.08939 2010 10 26 55495 0.2145 0.3261 -0.09015 2010 10 27 55496 0.2139 0.3243 -0.09088 2010 10 28 55497 0.2132 0.3225 -0.09163 2010 10 29 55498 0.2124 0.3207 -0.09250 2010 10 30 55499 0.2117 0.3190 -0.09355 2010 10 31 55500 0.2109 0.3172 -0.09483 2010 11 1 55501 0.2101 0.3155 -0.09635 2010 11 2 55502 0.2093 0.3138 -0.09805 2010 11 3 55503 0.2084 0.3121 -0.09983 2010 11 4 55504 0.2075 0.3104 -0.10156 2010 11 5 55505 0.2066 0.3087 -0.10312 2010 11 6 55506 0.2056 0.3071 -0.10444 2010 11 7 55507 0.2046 0.3054 -0.10552 2010 11 8 55508 0.2036 0.3038 -0.10640 2010 11 9 55509 0.2026 0.3022 -0.10717 2010 11 10 55510 0.2016 0.3006 -0.10793 2010 11 11 55511 0.2005 0.2990 -0.10874 2010 11 12 55512 0.1994 0.2974 -0.10965 2010 11 13 55513 0.1982 0.2959 -0.11065 2010 11 14 55514 0.1971 0.2944 -0.11176 2010 11 15 55515 0.1959 0.2929 -0.11293 2010 11 16 55516 0.1947 0.2914 -0.11414 2010 11 17 55517 0.1935 0.2899 -0.11534 2010 11 18 55518 0.1922 0.2884 -0.11649 2010 11 19 55519 0.1910 0.2870 -0.11754 2010 11 20 55520 0.1897 0.2856 -0.11848 2010 11 21 55521 0.1884 0.2842 -0.11929 2010 11 22 55522 0.1870 0.2828 -0.11998 2010 11 23 55523 0.1857 0.2815 -0.12061 2010 11 24 55524 0.1843 0.2801 -0.12124 2010 11 25 55525 0.1829 0.2788 -0.12195 2010 11 26 55526 0.1815 0.2775 -0.12282 2010 11 27 55527 0.1801 0.2763 -0.12389 2010 11 28 55528 0.1786 0.2750 -0.12518 2010 11 29 55529 0.1771 0.2738 -0.12663 2010 11 30 55530 0.1756 0.2726 -0.12816 2010 12 1 55531 0.1741 0.2714 -0.12967 2010 12 2 55532 0.1726 0.2703 -0.13104 2010 12 3 55533 0.1711 0.2691 -0.13220 2010 12 4 55534 0.1695 0.2680 -0.13314 2010 12 5 55535 0.1680 0.2670 -0.13388 2010 12 6 55536 0.1664 0.2659 -0.13444 2010 12 7 55537 0.1648 0.2649 -0.13496 2010 12 8 55538 0.1632 0.2639 -0.13552 2010 12 9 55539 0.1615 0.2629 -0.13617 2010 12 10 55540 0.1599 0.2619 -0.13693 2010 12 11 55541 0.1582 0.2610 -0.13780 2010 12 12 55542 0.1566 0.2601 -0.13876 2010 12 13 55543 0.1549 0.2592 -0.13976 2010 12 14 55544 0.1532 0.2584 -0.14077 2010 12 15 55545 0.1515 0.2576 -0.14174 2010 12 16 55546 0.1498 0.2568 -0.14264 2010 12 17 55547 0.1481 0.2560 -0.14342 2010 12 18 55548 0.1464 0.2552 -0.14408 2010 12 19 55549 0.1446 0.2545 -0.14463 2010 12 20 55550 0.1429 0.2538 -0.14509 2010 12 21 55551 0.1412 0.2532 -0.14553 2010 12 22 55552 0.1394 0.2525 -0.14604 2010 12 23 55553 0.1376 0.2519 -0.14669 2010 12 24 55554 0.1359 0.2513 -0.14755 2010 12 25 55555 0.1341 0.2508 -0.14863 2010 12 26 55556 0.1323 0.2502 -0.14989 2010 12 27 55557 0.1305 0.2497 -0.15122 2010 12 28 55558 0.1287 0.2493 -0.15253 2010 12 29 55559 0.1270 0.2488 -0.15370 2010 12 30 55560 0.1252 0.2484 -0.15468 2010 12 31 55561 0.1234 0.2480 -0.15543 2011 1 1 55562 0.1216 0.2476 -0.15599 2011 1 2 55563 0.1198 0.2473 -0.15641 2011 1 3 55564 0.1180 0.2470 -0.15678 2011 1 4 55565 0.1162 0.2467 -0.15716 2011 1 5 55566 0.1144 0.2465 -0.15764 2011 1 6 55567 0.1126 0.2462 -0.15822 2011 1 7 55568 0.1108 0.2460 -0.15893 2011 1 8 55569 0.1090 0.2459 -0.15975 2011 1 9 55570 0.1072 0.2457 -0.16063 2011 1 10 55571 0.1054 0.2456 -0.16153 2011 1 11 55572 0.1036 0.2455 -0.16242 2011 1 12 55573 0.1018 0.2455 -0.16324 2011 1 13 55574 0.1000 0.2455 -0.16397 2011 1 14 55575 0.0983 0.2455 -0.16458 2011 1 15 55576 0.0965 0.2455 -0.16509 2011 1 16 55577 0.0947 0.2455 -0.16551 2011 1 17 55578 0.0930 0.2456 -0.16590 2011 1 18 55579 0.0912 0.2457 -0.16633 2011 1 19 55580 0.0895 0.2459 -0.16691 2011 1 20 55581 0.0877 0.2460 -0.16770 2011 1 21 55582 0.0860 0.2462 -0.16875 2011 1 22 55583 0.0843 0.2464 -0.17003 2011 1 23 55584 0.0826 0.2467 -0.17145 2011 1 24 55585 0.0809 0.2469 -0.17288 2011 1 25 55586 0.0792 0.2472 -0.17420 2011 1 26 55587 0.0775 0.2475 -0.17532 2011 1 27 55588 0.0758 0.2479 -0.17621 2011 1 28 55589 0.0741 0.2483 -0.17688 2011 1 29 55590 0.0725 0.2487 -0.17741 2011 1 30 55591 0.0708 0.2491 -0.17787 2011 1 31 55592 0.0692 0.2495 -0.17833 2011 2 1 55593 0.0676 0.2500 -0.17888 2011 2 2 55594 0.0660 0.2505 -0.17954 2011 2 3 55595 0.0644 0.2510 -0.18033 2011 2 4 55596 0.0628 0.2516 -0.18124 2011 2 5 55597 0.0613 0.2521 -0.18225 2011 2 6 55598 0.0597 0.2527 -0.18330 2011 2 7 55599 0.0582 0.2534 -0.18435 2011 2 8 55600 0.0567 0.2540 -0.18536 2011 2 9 55601 0.0552 0.2547 -0.18629 2011 2 10 55602 0.0537 0.2554 -0.18712 2011 2 11 55603 0.0522 0.2561 -0.18785 2011 2 12 55604 0.0508 0.2568 -0.18848 2011 2 13 55605 0.0494 0.2576 -0.18907 2011 2 14 55606 0.0479 0.2583 -0.18968 2011 2 15 55607 0.0465 0.2592 -0.19039 2011 2 16 55608 0.0452 0.2600 -0.19129 2011 2 17 55609 0.0438 0.2608 -0.19245 2011 2 18 55610 0.0425 0.2617 -0.19389 2011 2 19 55611 0.0411 0.2626 -0.19553 2011 2 20 55612 0.0398 0.2635 -0.19725 2011 2 21 55613 0.0386 0.2644 -0.19891 2011 2 22 55614 0.0373 0.2653 -0.20036 2011 2 23 55615 0.0361 0.2663 -0.20154 2011 2 24 55616 0.0348 0.2673 -0.20246 2011 2 25 55617 0.0336 0.2683 -0.20316 2011 2 26 55618 0.0325 0.2693 -0.20373 2011 2 27 55619 0.0313 0.2704 -0.20428 2011 2 28 55620 0.0302 0.2714 -0.20487 2011 3 1 55621 0.0291 0.2725 -0.20557 2011 3 2 55622 0.0280 0.2736 -0.20642 2011 3 3 55623 0.0269 0.2747 -0.20741 2011 3 4 55624 0.0259 0.2758 -0.20856 2011 3 5 55625 0.0249 0.2770 -0.20981 2011 3 6 55626 0.0239 0.2781 -0.21114 2011 3 7 55627 0.0229 0.2793 -0.21249 2011 3 8 55628 0.0219 0.2805 -0.21380 2011 3 9 55629 0.0210 0.2817 -0.21505 2011 3 10 55630 0.0201 0.2829 -0.21620 2011 3 11 55631 0.0192 0.2841 -0.21725 2011 3 12 55632 0.0184 0.2854 -0.21823 2011 3 13 55633 0.0176 0.2866 -0.21918 2011 3 14 55634 0.0168 0.2879 -0.22017 2011 3 15 55635 0.0160 0.2892 -0.22131 2011 3 16 55636 0.0152 0.2904 -0.22268 2011 3 17 55637 0.0145 0.2918 -0.22436 2011 3 18 55638 0.0138 0.2931 -0.22633 2011 3 19 55639 0.0131 0.2944 -0.22851 2011 3 20 55640 0.0125 0.2957 -0.23074 2011 3 21 55641 0.0118 0.2971 -0.23286 2011 3 22 55642 0.0112 0.2984 -0.23473 2011 3 23 55643 0.0107 0.2998 -0.23628 2011 3 24 55644 0.0101 0.3012 -0.23753 2011 3 25 55645 0.0096 0.3025 -0.23858 2011 3 26 55646 0.0091 0.3039 -0.23954 2011 3 27 55647 0.0086 0.3053 -0.24052 2011 3 28 55648 0.0082 0.3067 -0.24157 2011 3 29 55649 0.0078 0.3081 -0.24275 2011 3 30 55650 0.0074 0.3096 -0.24407 2011 3 31 55651 0.0070 0.3110 -0.24546 2011 4 1 55652 0.0067 0.3124 -0.24688 2011 4 2 55653 0.0064 0.3138 -0.24827 2011 4 3 55654 0.0061 0.3153 -0.24957 2011 4 4 55655 0.0058 0.3167 -0.25081 2011 4 5 55656 0.0056 0.3182 -0.25199 2011 4 6 55657 0.0054 0.3196 -0.25305 2011 4 7 55658 0.0052 0.3211 -0.25394 2011 4 8 55659 0.0051 0.3225 -0.25472 2011 4 9 55660 0.0049 0.3240 -0.25544 2011 4 10 55661 0.0048 0.3254 -0.25619 2011 4 11 55662 0.0047 0.3269 -0.25707 2011 4 12 55663 0.0047 0.3284 -0.25812 2011 4 13 55664 0.0047 0.3298 -0.25940 2011 4 14 55665 0.0047 0.3313 -0.26093 2011 4 15 55666 0.0047 0.3327 -0.26271 2011 4 16 55667 0.0048 0.3342 -0.26458 2011 4 17 55668 0.0048 0.3357 -0.26638 2011 4 18 55669 0.0049 0.3371 -0.26801 2011 4 19 55670 0.0051 0.3386 -0.26934 2011 4 20 55671 0.0052 0.3400 -0.27035 2011 4 21 55672 0.0054 0.3415 -0.27115 2011 4 22 55673 0.0056 0.3429 -0.27182 2011 4 23 55674 0.0059 0.3444 -0.27248 2011 4 24 55675 0.0061 0.3458 -0.27322 2011 4 25 55676 0.0064 0.3473 -0.27408 2011 4 26 55677 0.0067 0.3487 -0.27512 2011 4 27 55678 0.0070 0.3501 -0.27630 2011 4 28 55679 0.0074 0.3516 -0.27756 2011 4 29 55680 0.0078 0.3530 -0.27884 2011 4 30 55681 0.0082 0.3544 -0.28014 2011 5 1 55682 0.0086 0.3558 -0.28146 2011 5 2 55683 0.0090 0.3572 -0.28270 2011 5 3 55684 0.0095 0.3586 -0.28383 2011 5 4 55685 0.0100 0.3600 -0.28479 2011 5 5 55686 0.0105 0.3613 -0.28563 2011 5 6 55687 0.0110 0.3627 -0.28639 2011 5 7 55688 0.0116 0.3641 -0.28715 2011 5 8 55689 0.0122 0.3654 -0.28794 2011 5 9 55690 0.0128 0.3668 -0.28881 2011 5 10 55691 0.0134 0.3681 -0.28977 2011 5 11 55692 0.0141 0.3694 -0.29087 2011 5 12 55693 0.0147 0.3707 -0.29206 2011 5 13 55694 0.0154 0.3720 -0.29334 2011 5 14 55695 0.0161 0.3733 -0.29464 2011 5 15 55696 0.0169 0.3746 -0.29583 2011 5 16 55697 0.0176 0.3759 -0.29682 2011 5 17 55698 0.0184 0.3771 -0.29750 2011 5 18 55699 0.0192 0.3784 -0.29798 2011 5 19 55700 0.0200 0.3796 -0.29835 2011 5 20 55701 0.0208 0.3808 -0.29871 2011 5 21 55702 0.0217 0.3821 -0.29910 2011 5 22 55703 0.0225 0.3833 -0.29954 2011 5 23 55704 0.0234 0.3844 -0.30006 2011 5 24 55705 0.0243 0.3856 -0.30066 2011 5 25 55706 0.0252 0.3868 -0.30136 2011 5 26 55707 0.0261 0.3879 -0.30207 2011 5 27 55708 0.0271 0.3890 -0.30277 2011 5 28 55709 0.0281 0.3901 -0.30337 2011 5 29 55710 0.0290 0.3912 -0.30383 2011 5 30 55711 0.0300 0.3923 -0.30413 2011 5 31 55712 0.0311 0.3934 -0.30432 2011 6 1 55713 0.0321 0.3944 -0.30436 2011 6 2 55714 0.0331 0.3955 -0.30424 2011 6 3 55715 0.0342 0.3965 -0.30400 2011 6 4 55716 0.0352 0.3975 -0.30378 2011 6 5 55717 0.0363 0.3985 -0.30370 2011 6 6 55718 0.0374 0.3994 -0.30376 2011 6 7 55719 0.0385 0.4004 -0.30395 2011 6 8 55720 0.0397 0.4013 -0.30428 2011 6 9 55721 0.0408 0.4022 -0.30468 2011 6 10 55722 0.0419 0.4031 -0.30509 2011 6 11 55723 0.0431 0.4040 -0.30546 2011 6 12 55724 0.0443 0.4049 -0.30564 2011 6 13 55725 0.0454 0.4057 -0.30557 2011 6 14 55726 0.0466 0.4066 -0.30527 2011 6 15 55727 0.0478 0.4074 -0.30488 2011 6 16 55728 0.0490 0.4082 -0.30449 2011 6 17 55729 0.0502 0.4089 -0.30417 2011 6 18 55730 0.0515 0.4097 -0.30397 2011 6 19 55731 0.0527 0.4104 -0.30383 2011 6 20 55732 0.0539 0.4111 -0.30376 2011 6 21 55733 0.0552 0.4118 -0.30373 2011 6 22 55734 0.0564 0.4125 -0.30371 2011 6 23 55735 0.0577 0.4132 -0.30369 2011 6 24 55736 0.0590 0.4138 -0.30360 2011 6 25 55737 0.0603 0.4144 -0.30343 2011 6 26 55738 0.0615 0.4150 -0.30317 2011 6 27 55739 0.0628 0.4156 -0.30280 2011 6 28 55740 0.0641 0.4162 -0.30230 2011 6 29 55741 0.0654 0.4167 -0.30171 2011 6 30 55742 0.0667 0.4173 -0.30106 2011 7 1 55743 0.0680 0.4178 -0.30048 2011 7 2 55744 0.0693 0.4182 -0.30009 2011 7 3 55745 0.0706 0.4187 -0.29984 2011 7 4 55746 0.0719 0.4191 -0.29976 2011 7 5 55747 0.0732 0.4196 -0.29985 2011 7 6 55748 0.0746 0.4200 -0.30004 2011 7 7 55749 0.0759 0.4203 -0.30026 2011 7 8 55750 0.0772 0.4207 -0.30041 2011 7 9 55751 0.0785 0.4210 -0.30037 2011 7 10 55752 0.0798 0.4214 -0.30009 2011 7 11 55753 0.0811 0.4217 -0.29961 2011 7 12 55754 0.0825 0.4219 -0.29898 2011 7 13 55755 0.0838 0.4222 -0.29828 2011 7 14 55756 0.0851 0.4224 -0.29766 2011 7 15 55757 0.0864 0.4227 -0.29717 2011 7 16 55758 0.0877 0.4229 -0.29682 2011 7 17 55759 0.0890 0.4231 -0.29659 2011 7 18 55760 0.0903 0.4232 -0.29647 2011 7 19 55761 0.0916 0.4234 -0.29641 2011 7 20 55762 0.0929 0.4235 -0.29641 2011 7 21 55763 0.0942 0.4236 -0.29638 2011 7 22 55764 0.0955 0.4237 -0.29626 2011 7 23 55765 0.0968 0.4237 -0.29608 2011 7 24 55766 0.0981 0.4238 -0.29580 2011 7 25 55767 0.0993 0.4238 -0.29534 2011 7 26 55768 0.1006 0.4238 -0.29471 2011 7 27 55769 0.1019 0.4238 -0.29397 2011 7 28 55770 0.1031 0.4237 -0.29329 2011 7 29 55771 0.1044 0.4237 -0.29277 2011 7 30 55772 0.1056 0.4236 -0.29244 2011 7 31 55773 0.1069 0.4235 -0.29232 2011 8 1 55774 0.1081 0.4234 -0.29241 2011 8 2 55775 0.1093 0.4233 -0.29272 2011 8 3 55776 0.1105 0.4231 -0.29316 2011 8 4 55777 0.1117 0.4230 -0.29354 2011 8 5 55778 0.1129 0.4228 -0.29377 2011 8 6 55779 0.1141 0.4226 -0.29382 2011 8 7 55780 0.1153 0.4224 -0.29365 2011 8 8 55781 0.1164 0.4221 -0.29331 2011 8 9 55782 0.1176 0.4219 -0.29292 2011 8 10 55783 0.1187 0.4216 -0.29254 2011 8 11 55784 0.1199 0.4213 -0.29224 2011 8 12 55785 0.1210 0.4210 -0.29203 2011 8 13 55786 0.1221 0.4207 -0.29198 2011 8 14 55787 0.1232 0.4203 -0.29205 2011 8 15 55788 0.1243 0.4200 -0.29226 2011 8 16 55789 0.1254 0.4196 -0.29254 2011 8 17 55790 0.1264 0.4192 -0.29282 2011 8 18 55791 0.1275 0.4188 -0.29307 2011 8 19 55792 0.1285 0.4184 -0.29322 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) 55408 -72.40 0.48 -9.48 0.16 55409 -72.41 0.32 -9.55 0.12 55410 -72.44 0.32 -9.65 0.12 55411 -72.78 0.13 -9.84 0.34 55412 -73.38 0.16 -9.98 0.34 55413 -73.89 0.16 -9.94 0.34 55414 -74.01 0.16 -9.76 0.34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55408 -0.022 0.191 0.031 0.160 55409 -0.029 0.127 0.022 0.120 55410 -0.021 0.127 0.018 0.120 55411 -0.011 0.052 0.014 0.340 55412 -0.001 0.064 0.031 0.340 55413 0.009 0.064 0.043 0.340 55414 0.033 0.064 0.058 0.340 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.