********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 15 July 2010 Vol. XXIII No. 028 ______________________________________________________________________ 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 7 9 55386 0.08629 .00009 0.48397 .00009 -0.055217 0.000010 10 7 10 55387 0.08854 .00010 0.48386 .00009 -0.054604 0.000013 10 7 11 55388 0.09080 .00010 0.48377 .00009 -0.054062 0.000015 10 7 12 55389 0.09311 .00009 0.48372 .00009 -0.053671 0.000015 10 7 13 55390 0.09549 .00010 0.48371 .00009 -0.053488 0.000015 10 7 14 55391 0.09807 .00010 0.48373 .00009 -0.053541 0.000016 10 7 15 55392 0.10032 .00010 0.48383 .00009 -0.053763 0.000017 _______________________________________________________________________ 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 = 0.1008 + 0.0681 cos A + 0.0801 sin A - 0.0736 cos C + 0.0605 sin C y = 0.3476 + 0.0719 cos A - 0.0618 sin A + 0.0605 cos C + 0.0736 sin C UT1-UTC = -0.0432 - 0.00084 (MJD - 55400) - (UT2-UT1) where A = 2*pi*(MJD-55392)/365.25 and C = 2*pi*(MJD-55392)/435. TAI-UTC(MJD 55393) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55392)**0.80 S t = 0.00025 (MJD-55392)**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 7 16 55393 0.1027 0.4838 -0.05406 2010 7 17 55394 0.1048 0.4837 -0.05432 2010 7 18 55395 0.1069 0.4835 -0.05444 2010 7 19 55396 0.1090 0.4832 -0.05433 2010 7 20 55397 0.1112 0.4829 -0.05398 2010 7 21 55398 0.1133 0.4825 -0.05341 2010 7 22 55399 0.1154 0.4822 -0.05269 2010 7 23 55400 0.1176 0.4818 -0.05191 2010 7 24 55401 0.1197 0.4813 -0.05114 2010 7 25 55402 0.1218 0.4809 -0.05047 2010 7 26 55403 0.1239 0.4804 -0.04994 2010 7 27 55404 0.1260 0.4798 -0.04952 2010 7 28 55405 0.1281 0.4793 -0.04921 2010 7 29 55406 0.1301 0.4787 -0.04901 2010 7 30 55407 0.1322 0.4780 -0.04887 2010 7 31 55408 0.1342 0.4774 -0.04874 2010 8 1 55409 0.1362 0.4767 -0.04858 2010 8 2 55410 0.1382 0.4759 -0.04835 2010 8 3 55411 0.1402 0.4752 -0.04803 2010 8 4 55412 0.1421 0.4744 -0.04760 2010 8 5 55413 0.1441 0.4736 -0.04707 2010 8 6 55414 0.1460 0.4727 -0.04649 2010 8 7 55415 0.1479 0.4719 -0.04594 2010 8 8 55416 0.1498 0.4709 -0.04552 2010 8 9 55417 0.1516 0.4700 -0.04534 2010 8 10 55418 0.1535 0.4690 -0.04546 2010 8 11 55419 0.1553 0.4681 -0.04586 2010 8 12 55420 0.1571 0.4670 -0.04644 2010 8 13 55421 0.1589 0.4660 -0.04706 2010 8 14 55422 0.1606 0.4649 -0.04756 2010 8 15 55423 0.1624 0.4638 -0.04785 2010 8 16 55424 0.1641 0.4627 -0.04789 2010 8 17 55425 0.1658 0.4615 -0.04772 2010 8 18 55426 0.1674 0.4603 -0.04742 2010 8 19 55427 0.1691 0.4591 -0.04708 2010 8 20 55428 0.1707 0.4579 -0.04678 2010 8 21 55429 0.1723 0.4566 -0.04658 2010 8 22 55430 0.1738 0.4554 -0.04652 2010 8 23 55431 0.1754 0.4541 -0.04663 2010 8 24 55432 0.1769 0.4527 -0.04691 2010 8 25 55433 0.1784 0.4514 -0.04732 2010 8 26 55434 0.1798 0.4500 -0.04782 2010 8 27 55435 0.1813 0.4486 -0.04836 2010 8 28 55436 0.1827 0.4472 -0.04888 2010 8 29 55437 0.1840 0.4457 -0.04934 2010 8 30 55438 0.1854 0.4443 -0.04971 2010 8 31 55439 0.1867 0.4428 -0.04995 2010 9 1 55440 0.1880 0.4413 -0.05008 2010 9 2 55441 0.1892 0.4398 -0.05014 2010 9 3 55442 0.1905 0.4382 -0.05020 2010 9 4 55443 0.1917 0.4367 -0.05038 2010 9 5 55444 0.1928 0.4351 -0.05077 2010 9 6 55445 0.1940 0.4335 -0.05144 2010 9 7 55446 0.1951 0.4319 -0.05242 2010 9 8 55447 0.1962 0.4302 -0.05363 2010 9 9 55448 0.1972 0.4286 -0.05497 2010 9 10 55449 0.1983 0.4269 -0.05626 2010 9 11 55450 0.1992 0.4253 -0.05737 2010 9 12 55451 0.2002 0.4236 -0.05822 2010 9 13 55452 0.2011 0.4219 -0.05881 2010 9 14 55453 0.2020 0.4201 -0.05921 2010 9 15 55454 0.2029 0.4184 -0.05950 2010 9 16 55455 0.2037 0.4166 -0.05978 2010 9 17 55456 0.2045 0.4149 -0.06011 2010 9 18 55457 0.2053 0.4131 -0.06055 2010 9 19 55458 0.2060 0.4113 -0.06112 2010 9 20 55459 0.2067 0.4095 -0.06182 2010 9 21 55460 0.2074 0.4077 -0.06264 2010 9 22 55461 0.2080 0.4059 -0.06354 2010 9 23 55462 0.2086 0.4041 -0.06447 2010 9 24 55463 0.2092 0.4023 -0.06539 2010 9 25 55464 0.2097 0.4004 -0.06624 2010 9 26 55465 0.2102 0.3986 -0.06700 2010 9 27 55466 0.2107 0.3967 -0.06764 2010 9 28 55467 0.2111 0.3948 -0.06817 2010 9 29 55468 0.2115 0.3930 -0.06863 2010 9 30 55469 0.2119 0.3911 -0.06907 2010 10 1 55470 0.2123 0.3892 -0.06958 2010 10 2 55471 0.2126 0.3873 -0.07024 2010 10 3 55472 0.2128 0.3854 -0.07114 2010 10 4 55473 0.2131 0.3835 -0.07232 2010 10 5 55474 0.2133 0.3816 -0.07377 2010 10 6 55475 0.2135 0.3797 -0.07540 2010 10 7 55476 0.2136 0.3778 -0.07707 2010 10 8 55477 0.2137 0.3759 -0.07864 2010 10 9 55478 0.2138 0.3740 -0.08000 2010 10 10 55479 0.2138 0.3721 -0.08110 2010 10 11 55480 0.2138 0.3702 -0.08197 2010 10 12 55481 0.2138 0.3683 -0.08269 2010 10 13 55482 0.2138 0.3664 -0.08335 2010 10 14 55483 0.2137 0.3645 -0.08404 2010 10 15 55484 0.2136 0.3626 -0.08482 2010 10 16 55485 0.2134 0.3607 -0.08572 2010 10 17 55486 0.2132 0.3588 -0.08676 2010 10 18 55487 0.2130 0.3569 -0.08791 2010 10 19 55488 0.2128 0.3550 -0.08916 2010 10 20 55489 0.2125 0.3531 -0.09044 2010 10 21 55490 0.2122 0.3512 -0.09173 2010 10 22 55491 0.2118 0.3493 -0.09297 2010 10 23 55492 0.2115 0.3475 -0.09411 2010 10 24 55493 0.2111 0.3456 -0.09513 2010 10 25 55494 0.2106 0.3438 -0.09604 2010 10 26 55495 0.2102 0.3419 -0.09684 2010 10 27 55496 0.2097 0.3401 -0.09759 2010 10 28 55497 0.2091 0.3382 -0.09837 2010 10 29 55498 0.2086 0.3364 -0.09925 2010 10 30 55499 0.2080 0.3346 -0.10031 2010 10 31 55500 0.2074 0.3328 -0.10160 2010 11 1 55501 0.2068 0.3310 -0.10309 2010 11 2 55502 0.2061 0.3292 -0.10475 2010 11 3 55503 0.2054 0.3274 -0.10649 2010 11 4 55504 0.2047 0.3256 -0.10817 2010 11 5 55505 0.2039 0.3239 -0.10969 2010 11 6 55506 0.2031 0.3222 -0.11098 2010 11 7 55507 0.2023 0.3204 -0.11202 2010 11 8 55508 0.2015 0.3187 -0.11287 2010 11 9 55509 0.2006 0.3170 -0.11361 2010 11 10 55510 0.1997 0.3153 -0.11435 2010 11 11 55511 0.1988 0.3137 -0.11515 2010 11 12 55512 0.1979 0.3120 -0.11604 2010 11 13 55513 0.1969 0.3104 -0.11705 2010 11 14 55514 0.1959 0.3087 -0.11817 2010 11 15 55515 0.1949 0.3071 -0.11936 2010 11 16 55516 0.1939 0.3055 -0.12061 2010 11 17 55517 0.1928 0.3039 -0.12185 2010 11 18 55518 0.1917 0.3024 -0.12305 2010 11 19 55519 0.1906 0.3008 -0.12416 2010 11 20 55520 0.1895 0.2993 -0.12515 2010 11 21 55521 0.1883 0.2978 -0.12602 2010 11 22 55522 0.1871 0.2963 -0.12677 2010 11 23 55523 0.1859 0.2949 -0.12745 2010 11 24 55524 0.1847 0.2934 -0.12813 2010 11 25 55525 0.1835 0.2920 -0.12889 2010 11 26 55526 0.1822 0.2906 -0.12980 2010 11 27 55527 0.1809 0.2892 -0.13092 2010 11 28 55528 0.1796 0.2878 -0.13225 2010 11 29 55529 0.1783 0.2865 -0.13373 2010 11 30 55530 0.1769 0.2851 -0.13528 2010 12 1 55531 0.1756 0.2838 -0.13681 2010 12 2 55532 0.1742 0.2825 -0.13820 2010 12 3 55533 0.1728 0.2813 -0.13938 2010 12 4 55534 0.1714 0.2800 -0.14033 2010 12 5 55535 0.1699 0.2788 -0.14109 2010 12 6 55536 0.1685 0.2776 -0.14171 2010 12 7 55537 0.1670 0.2765 -0.14230 2010 12 8 55538 0.1655 0.2753 -0.14292 2010 12 9 55539 0.1640 0.2742 -0.14362 2010 12 10 55540 0.1625 0.2731 -0.14444 2010 12 11 55541 0.1610 0.2720 -0.14536 2010 12 12 55542 0.1595 0.2710 -0.14636 2010 12 13 55543 0.1579 0.2699 -0.14741 2010 12 14 55544 0.1564 0.2689 -0.14846 2010 12 15 55545 0.1548 0.2679 -0.14948 2010 12 16 55546 0.1532 0.2670 -0.15041 2010 12 17 55547 0.1516 0.2661 -0.15123 2010 12 18 55548 0.1500 0.2652 -0.15193 2010 12 19 55549 0.1484 0.2643 -0.15251 2010 12 20 55550 0.1467 0.2634 -0.15300 2010 12 21 55551 0.1451 0.2626 -0.15347 2010 12 22 55552 0.1435 0.2618 -0.15400 2010 12 23 55553 0.1418 0.2610 -0.15468 2010 12 24 55554 0.1401 0.2603 -0.15556 2010 12 25 55555 0.1385 0.2596 -0.15665 2010 12 26 55556 0.1368 0.2589 -0.15792 2010 12 27 55557 0.1351 0.2582 -0.15926 2010 12 28 55558 0.1334 0.2576 -0.16057 2010 12 29 55559 0.1317 0.2569 -0.16175 2010 12 30 55560 0.1300 0.2564 -0.16272 2010 12 31 55561 0.1283 0.2558 -0.16347 2011 1 1 55562 0.1266 0.2553 -0.16402 2011 1 2 55563 0.1249 0.2548 -0.16443 2011 1 3 55564 0.1232 0.2543 -0.16478 2011 1 4 55565 0.1214 0.2538 -0.16515 2011 1 5 55566 0.1197 0.2534 -0.16560 2011 1 6 55567 0.1180 0.2530 -0.16617 2011 1 7 55568 0.1163 0.2526 -0.16686 2011 1 8 55569 0.1146 0.2523 -0.16764 2011 1 9 55570 0.1128 0.2520 -0.16850 2011 1 10 55571 0.1111 0.2517 -0.16938 2011 1 11 55572 0.1094 0.2514 -0.17024 2011 1 12 55573 0.1077 0.2512 -0.17104 2011 1 13 55574 0.1059 0.2510 -0.17175 2011 1 14 55575 0.1042 0.2508 -0.17235 2011 1 15 55576 0.1025 0.2507 -0.17285 2011 1 16 55577 0.1008 0.2505 -0.17328 2011 1 17 55578 0.0991 0.2504 -0.17369 2011 1 18 55579 0.0974 0.2504 -0.17415 2011 1 19 55580 0.0957 0.2503 -0.17477 2011 1 20 55581 0.0940 0.2503 -0.17562 2011 1 21 55582 0.0923 0.2503 -0.17675 2011 1 22 55583 0.0906 0.2503 -0.17812 2011 1 23 55584 0.0889 0.2504 -0.17966 2011 1 24 55585 0.0873 0.2505 -0.18122 2011 1 25 55586 0.0856 0.2506 -0.18268 2011 1 26 55587 0.0839 0.2507 -0.18393 2011 1 27 55588 0.0823 0.2509 -0.18494 2011 1 28 55589 0.0807 0.2511 -0.18570 2011 1 29 55590 0.0790 0.2513 -0.18629 2011 1 30 55591 0.0774 0.2516 -0.18678 2011 1 31 55592 0.0758 0.2518 -0.18725 2011 2 1 55593 0.0742 0.2521 -0.18776 2011 2 2 55594 0.0726 0.2524 -0.18836 2011 2 3 55595 0.0710 0.2528 -0.18907 2011 2 4 55596 0.0695 0.2532 -0.18989 2011 2 5 55597 0.0679 0.2536 -0.19079 2011 2 6 55598 0.0664 0.2540 -0.19174 2011 2 7 55599 0.0648 0.2544 -0.19268 2011 2 8 55600 0.0633 0.2549 -0.19357 2011 2 9 55601 0.0618 0.2554 -0.19438 2011 2 10 55602 0.0603 0.2559 -0.19506 2011 2 11 55603 0.0588 0.2564 -0.19562 2011 2 12 55604 0.0574 0.2570 -0.19608 2011 2 13 55605 0.0559 0.2576 -0.19650 2011 2 14 55606 0.0545 0.2582 -0.19696 2011 2 15 55607 0.0531 0.2588 -0.19758 2011 2 16 55608 0.0517 0.2595 -0.19845 2011 2 17 55609 0.0503 0.2601 -0.19964 2011 2 18 55610 0.0489 0.2608 -0.20116 2011 2 19 55611 0.0476 0.2615 -0.20293 2011 2 20 55612 0.0463 0.2623 -0.20487 2011 2 21 55613 0.0449 0.2630 -0.20680 2011 2 22 55614 0.0436 0.2638 -0.20856 2011 2 23 55615 0.0424 0.2646 -0.21004 2011 2 24 55616 0.0411 0.2654 -0.21126 2011 2 25 55617 0.0399 0.2663 -0.21229 2011 2 26 55618 0.0386 0.2671 -0.21321 2011 2 27 55619 0.0374 0.2680 -0.21410 2011 2 28 55620 0.0362 0.2689 -0.21499 2011 3 1 55621 0.0351 0.2698 -0.21590 2011 3 2 55622 0.0339 0.2707 -0.21686 2011 3 3 55623 0.0328 0.2717 -0.21788 2011 3 4 55624 0.0317 0.2727 -0.21896 2011 3 5 55625 0.0306 0.2736 -0.22012 2011 3 6 55626 0.0295 0.2746 -0.22131 2011 3 7 55627 0.0285 0.2757 -0.22245 2011 3 8 55628 0.0275 0.2767 -0.22346 2011 3 9 55629 0.0265 0.2777 -0.22439 2011 3 10 55630 0.0255 0.2788 -0.22526 2011 3 11 55631 0.0246 0.2799 -0.22608 2011 3 12 55632 0.0236 0.2810 -0.22682 2011 3 13 55633 0.0227 0.2821 -0.22754 2011 3 14 55634 0.0218 0.2832 -0.22831 2011 3 15 55635 0.0210 0.2844 -0.22923 2011 3 16 55636 0.0201 0.2855 -0.23043 2011 3 17 55637 0.0193 0.2867 -0.23193 2011 3 18 55638 0.0185 0.2878 -0.23370 2011 3 19 55639 0.0177 0.2890 -0.23563 2011 3 20 55640 0.0170 0.2902 -0.23755 2011 3 21 55641 0.0162 0.2914 -0.23933 2011 3 22 55642 0.0155 0.2927 -0.24091 2011 3 23 55643 0.0149 0.2939 -0.24219 2011 3 24 55644 0.0142 0.2951 -0.24316 2011 3 25 55645 0.0136 0.2964 -0.24388 2011 3 26 55646 0.0130 0.2977 -0.24452 2011 3 27 55647 0.0124 0.2989 -0.24521 2011 3 28 55648 0.0118 0.3002 -0.24597 2011 3 29 55649 0.0113 0.3015 -0.24677 2011 3 30 55650 0.0108 0.3028 -0.24764 2011 3 31 55651 0.0103 0.3041 -0.24858 2011 4 1 55652 0.0098 0.3054 -0.24959 2011 4 2 55653 0.0094 0.3067 -0.25063 2011 4 3 55654 0.0090 0.3081 -0.25163 2011 4 4 55655 0.0086 0.3094 -0.25253 2011 4 5 55656 0.0082 0.3107 -0.25330 2011 4 6 55657 0.0079 0.3121 -0.25403 2011 4 7 55658 0.0076 0.3134 -0.25473 2011 4 8 55659 0.0073 0.3148 -0.25541 2011 4 9 55660 0.0070 0.3161 -0.25608 2011 4 10 55661 0.0068 0.3175 -0.25675 2011 4 11 55662 0.0066 0.3189 -0.25748 2011 4 12 55663 0.0064 0.3202 -0.25836 2011 4 13 55664 0.0062 0.3216 -0.25945 2011 4 14 55665 0.0061 0.3230 -0.26081 2011 4 15 55666 0.0059 0.3243 -0.26237 2011 4 16 55667 0.0058 0.3257 -0.26403 2011 4 17 55668 0.0058 0.3271 -0.26569 2011 4 18 55669 0.0057 0.3285 -0.26720 2011 4 19 55670 0.0057 0.3298 -0.26845 2011 4 20 55671 0.0057 0.3312 -0.26942 2011 4 21 55672 0.0057 0.3326 -0.27019 2011 4 22 55673 0.0058 0.3340 -0.27089 2011 4 23 55674 0.0058 0.3354 -0.27164 2011 4 24 55675 0.0059 0.3367 -0.27242 2011 4 25 55676 0.0060 0.3381 -0.27325 2011 4 26 55677 0.0062 0.3395 -0.27414 2011 4 27 55678 0.0064 0.3408 -0.27509 2011 4 28 55679 0.0065 0.3422 -0.27608 2011 4 29 55680 0.0067 0.3436 -0.27708 2011 4 30 55681 0.0070 0.3449 -0.27801 2011 5 1 55682 0.0072 0.3463 -0.27883 2011 5 2 55683 0.0075 0.3476 -0.27954 2011 5 3 55684 0.0078 0.3489 -0.28012 2011 5 4 55685 0.0081 0.3503 -0.28060 2011 5 5 55686 0.0085 0.3516 -0.28106 2011 5 6 55687 0.0088 0.3529 -0.28151 2011 5 7 55688 0.0092 0.3543 -0.28197 2011 5 8 55689 0.0096 0.3556 -0.28251 2011 5 9 55690 0.0100 0.3569 -0.28318 2011 5 10 55691 0.0105 0.3582 -0.28403 2011 5 11 55692 0.0110 0.3595 -0.28513 2011 5 12 55693 0.0114 0.3608 -0.28642 2011 5 13 55694 0.0119 0.3620 -0.28782 2011 5 14 55695 0.0125 0.3633 -0.28926 2011 5 15 55696 0.0130 0.3646 -0.29060 2011 5 16 55697 0.0136 0.3658 -0.29166 2011 5 17 55698 0.0142 0.3670 -0.29239 2011 5 18 55699 0.0148 0.3683 -0.29282 2011 5 19 55700 0.0154 0.3695 -0.29315 2011 5 20 55701 0.0160 0.3707 -0.29347 2011 5 21 55702 0.0167 0.3719 -0.29383 2011 5 22 55703 0.0174 0.3731 -0.29425 2011 5 23 55704 0.0181 0.3743 -0.29474 2011 5 24 55705 0.0188 0.3754 -0.29533 2011 5 25 55706 0.0195 0.3766 -0.29601 2011 5 26 55707 0.0202 0.3777 -0.29668 2011 5 27 55708 0.0210 0.3789 -0.29730 2011 5 28 55709 0.0218 0.3800 -0.29786 2011 5 29 55710 0.0226 0.3811 -0.29831 2011 5 30 55711 0.0234 0.3822 -0.29862 2011 5 31 55712 0.0242 0.3832 -0.29883 2011 6 1 55713 0.0250 0.3843 -0.29895 2011 6 2 55714 0.0259 0.3854 -0.29900 2011 6 3 55715 0.0267 0.3864 -0.29901 2011 6 4 55716 0.0276 0.3874 -0.29908 2011 6 5 55717 0.0285 0.3884 -0.29927 2011 6 6 55718 0.0294 0.3894 -0.29966 2011 6 7 55719 0.0303 0.3904 -0.30026 2011 6 8 55720 0.0312 0.3914 -0.30104 2011 6 9 55721 0.0322 0.3923 -0.30193 2011 6 10 55722 0.0331 0.3932 -0.30284 2011 6 11 55723 0.0341 0.3942 -0.30365 2011 6 12 55724 0.0351 0.3951 -0.30429 2011 6 13 55725 0.0361 0.3960 -0.30472 2011 6 14 55726 0.0371 0.3968 -0.30495 2011 6 15 55727 0.0381 0.3977 -0.30506 2011 6 16 55728 0.0391 0.3985 -0.30512 2011 6 17 55729 0.0401 0.3993 -0.30520 2011 6 18 55730 0.0412 0.4001 -0.30533 2011 6 19 55731 0.0422 0.4009 -0.30552 2011 6 20 55732 0.0433 0.4017 -0.30577 2011 6 21 55733 0.0443 0.4025 -0.30607 2011 6 22 55734 0.0454 0.4032 -0.30636 2011 6 23 55735 0.0465 0.4039 -0.30661 2011 6 24 55736 0.0475 0.4046 -0.30680 2011 6 25 55737 0.0486 0.4053 -0.30690 2011 6 26 55738 0.0497 0.4060 -0.30688 2011 6 27 55739 0.0508 0.4066 -0.30674 2011 6 28 55740 0.0519 0.4072 -0.30647 2011 6 29 55741 0.0530 0.4079 -0.30614 2011 6 30 55742 0.0542 0.4085 -0.30581 2011 7 1 55743 0.0553 0.4090 -0.30553 2011 7 2 55744 0.0564 0.4096 -0.30541 2011 7 3 55745 0.0575 0.4101 -0.30550 2011 7 4 55746 0.0587 0.4107 -0.30582 2011 7 5 55747 0.0598 0.4112 -0.30635 2011 7 6 55748 0.0610 0.4117 -0.30699 2011 7 7 55749 0.0621 0.4121 -0.30764 2011 7 8 55750 0.0632 0.4126 -0.30820 2011 7 9 55751 0.0644 0.4130 -0.30861 2011 7 10 55752 0.0655 0.4134 -0.30878 2011 7 11 55753 0.0667 0.4138 -0.30874 2011 7 12 55754 0.0678 0.4142 -0.30858 2011 7 13 55755 0.0690 0.4145 -0.30833 2011 7 14 55756 0.0701 0.4149 -0.30804 2011 7 15 55757 0.0713 0.4152 -0.30784 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) 55373 -66.73 0.32 -10.03 0.34 55374 -66.61 0.32 -9.95 0.34 55375 -66.60 0.32 -9.74 0.34 55376 -66.68 0.74 -9.54 0.34 55377 -66.82 0.11 -9.49 0.16 55378 -67.04 0.11 -9.61 0.16 55379 -67.31 0.11 -9.73 0.16 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55373 0.004 0.127 0.015 0.340 55374 0.029 0.127 0.039 0.340 55375 0.035 0.127 0.053 0.340 55376 0.034 0.294 0.070 0.340 55377 0.040 0.044 0.093 0.160 55378 0.042 0.044 0.092 0.160 55379 0.023 0.044 0.091 0.160 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.