********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 5 August 2010 Vol. XXIII No. 031 ______________________________________________________________________ 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 ********************************************************************** * As of Bulletin A Vol. XXIII, No. 031, on 5 August 2010, VLBI INT2 * * data from Geospatial Information Authority of Japan (GSI) is * * being used in the solution. The effect appears to be less than * * 10 us in UT1-UTC. * ********************************************************************** ________________________________________________________________________ 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 30 55407 0.13530 .00010 0.46937 .00009 -0.049804 0.000011 10 7 31 55408 0.13728 .00010 0.46800 .00009 -0.049709 0.000010 10 8 1 55409 0.13947 .00010 0.46664 .00009 -0.049544 0.000011 10 8 2 55410 0.14163 .00010 0.46549 .00009 -0.049300 0.000015 10 8 3 55411 0.14383 .00010 0.46454 .00009 -0.048967 0.000015 10 8 4 55412 0.14590 .00009 0.46359 .00009 -0.048556 0.000014 10 8 5 55413 0.14770 .00009 0.46254 .00009 -0.048118 0.000014 IERS Final Values MJD x y UT1-UTC " " s 10 6 2 55349 -0.0224 0.4537 -0.05216 10 6 3 55350 -0.0208 0.4551 -0.05284 10 6 4 55351 -0.0193 0.4565 -0.05358 10 6 5 55352 -0.0174 0.4579 -0.05432 10 6 6 55353 -0.0146 0.4594 -0.05504 10 6 7 55354 -0.0119 0.4612 -0.05569 10 6 8 55355 -0.0096 0.4627 -0.05622 10 6 9 55356 -0.0066 0.4643 -0.05668 10 6 10 55357 -0.0037 0.4661 -0.05699 10 6 11 55358 -0.0012 0.4678 -0.05717 10 6 12 55359 0.0017 0.4693 -0.05725 10 6 13 55360 0.0049 0.4709 -0.05731 10 6 14 55361 0.0078 0.4724 -0.05741 10 6 15 55362 0.0102 0.4735 -0.05760 10 6 16 55363 0.0129 0.4745 -0.05796 10 6 17 55364 0.0159 0.4755 -0.05847 10 6 18 55365 0.0192 0.4765 -0.05910 10 6 19 55366 0.0223 0.4777 -0.05974 10 6 20 55367 0.0249 0.4786 -0.06021 10 6 21 55368 0.0276 0.4788 -0.06043 10 6 22 55369 0.0306 0.4790 -0.06041 10 6 23 55370 0.0340 0.4789 -0.06017 10 6 24 55371 0.0379 0.4791 -0.05973 10 6 25 55372 0.0413 0.4798 -0.05914 10 6 26 55373 0.0442 0.4805 -0.05852 10 6 27 55374 0.0471 0.4813 -0.05795 10 6 28 55375 0.0502 0.4820 -0.05746 10 6 29 55376 0.0535 0.4825 -0.05711 10 6 30 55377 0.0570 0.4830 -0.05694 10 7 1 55378 0.0608 0.4832 -0.05687 _______________________________________________________________________ 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 = 0.0927 + 0.0988 cos A + 0.0586 sin A - 0.0537 cos C + 0.0701 sin C y = 0.3400 + 0.0510 cos A - 0.0892 sin A + 0.0701 cos C + 0.0537 sin C UT1-UTC = -0.0576 - 0.00082 (MJD - 55421) - (UT2-UT1) where A = 2*pi*(MJD-55413)/365.25 and C = 2*pi*(MJD-55413)/435. TAI-UTC(MJD 55414) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55413)**0.80 S t = 0.00025 (MJD-55413)**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 6 55414 0.1496 0.4616 -0.04768 2010 8 7 55415 0.1514 0.4605 -0.04731 2010 8 8 55416 0.1531 0.4594 -0.04709 2010 8 9 55417 0.1549 0.4584 -0.04709 2010 8 10 55418 0.1566 0.4574 -0.04737 2010 8 11 55419 0.1583 0.4564 -0.04790 2010 8 12 55420 0.1600 0.4553 -0.04859 2010 8 13 55421 0.1617 0.4543 -0.04929 2010 8 14 55422 0.1633 0.4532 -0.04984 2010 8 15 55423 0.1649 0.4521 -0.05017 2010 8 16 55424 0.1665 0.4510 -0.05026 2010 8 17 55425 0.1680 0.4499 -0.05012 2010 8 18 55426 0.1696 0.4487 -0.04981 2010 8 19 55427 0.1711 0.4476 -0.04940 2010 8 20 55428 0.1726 0.4464 -0.04897 2010 8 21 55429 0.1740 0.4451 -0.04861 2010 8 22 55430 0.1755 0.4439 -0.04836 2010 8 23 55431 0.1769 0.4426 -0.04825 2010 8 24 55432 0.1783 0.4414 -0.04827 2010 8 25 55433 0.1796 0.4400 -0.04841 2010 8 26 55434 0.1809 0.4387 -0.04866 2010 8 27 55435 0.1822 0.4374 -0.04895 2010 8 28 55436 0.1835 0.4360 -0.04920 2010 8 29 55437 0.1848 0.4346 -0.04939 2010 8 30 55438 0.1860 0.4332 -0.04947 2010 8 31 55439 0.1872 0.4318 -0.04944 2010 9 1 55440 0.1884 0.4303 -0.04932 2010 9 2 55441 0.1895 0.4289 -0.04913 2010 9 3 55442 0.1906 0.4274 -0.04897 2010 9 4 55443 0.1917 0.4259 -0.04891 2010 9 5 55444 0.1928 0.4244 -0.04905 2010 9 6 55445 0.1938 0.4229 -0.04948 2010 9 7 55446 0.1948 0.4213 -0.05020 2010 9 8 55447 0.1957 0.4198 -0.05116 2010 9 9 55448 0.1967 0.4182 -0.05223 2010 9 10 55449 0.1976 0.4166 -0.05325 2010 9 11 55450 0.1985 0.4150 -0.05409 2010 9 12 55451 0.1993 0.4134 -0.05467 2010 9 13 55452 0.2001 0.4118 -0.05502 2010 9 14 55453 0.2009 0.4101 -0.05519 2010 9 15 55454 0.2017 0.4085 -0.05527 2010 9 16 55455 0.2024 0.4068 -0.05535 2010 9 17 55456 0.2031 0.4052 -0.05551 2010 9 18 55457 0.2037 0.4035 -0.05579 2010 9 19 55458 0.2044 0.4018 -0.05623 2010 9 20 55459 0.2050 0.4001 -0.05682 2010 9 21 55460 0.2055 0.3984 -0.05756 2010 9 22 55461 0.2061 0.3967 -0.05841 2010 9 23 55462 0.2066 0.3949 -0.05933 2010 9 24 55463 0.2070 0.3932 -0.06026 2010 9 25 55464 0.2075 0.3915 -0.06115 2010 9 26 55465 0.2079 0.3897 -0.06196 2010 9 27 55466 0.2083 0.3880 -0.06267 2010 9 28 55467 0.2086 0.3862 -0.06327 2010 9 29 55468 0.2089 0.3844 -0.06381 2010 9 30 55469 0.2092 0.3827 -0.06434 2010 10 1 55470 0.2095 0.3809 -0.06492 2010 10 2 55471 0.2097 0.3791 -0.06564 2010 10 3 55472 0.2099 0.3774 -0.06658 2010 10 4 55473 0.2100 0.3756 -0.06780 2010 10 5 55474 0.2101 0.3738 -0.06927 2010 10 6 55475 0.2102 0.3720 -0.07093 2010 10 7 55476 0.2103 0.3702 -0.07263 2010 10 8 55477 0.2103 0.3684 -0.07423 2010 10 9 55478 0.2103 0.3667 -0.07560 2010 10 10 55479 0.2103 0.3649 -0.07672 2010 10 11 55480 0.2102 0.3631 -0.07760 2010 10 12 55481 0.2101 0.3613 -0.07834 2010 10 13 55482 0.2100 0.3595 -0.07903 2010 10 14 55483 0.2098 0.3577 -0.07974 2010 10 15 55484 0.2097 0.3560 -0.08053 2010 10 16 55485 0.2094 0.3542 -0.08144 2010 10 17 55486 0.2092 0.3524 -0.08248 2010 10 18 55487 0.2089 0.3507 -0.08362 2010 10 19 55488 0.2086 0.3489 -0.08485 2010 10 20 55489 0.2083 0.3472 -0.08612 2010 10 21 55490 0.2079 0.3454 -0.08739 2010 10 22 55491 0.2075 0.3437 -0.08860 2010 10 23 55492 0.2071 0.3419 -0.08971 2010 10 24 55493 0.2066 0.3402 -0.09068 2010 10 25 55494 0.2061 0.3385 -0.09153 2010 10 26 55495 0.2056 0.3368 -0.09228 2010 10 27 55496 0.2051 0.3351 -0.09297 2010 10 28 55497 0.2045 0.3334 -0.09368 2010 10 29 55498 0.2039 0.3317 -0.09450 2010 10 30 55499 0.2033 0.3300 -0.09549 2010 10 31 55500 0.2026 0.3284 -0.09672 2010 11 1 55501 0.2019 0.3267 -0.09818 2010 11 2 55502 0.2012 0.3251 -0.09981 2010 11 3 55503 0.2005 0.3234 -0.10153 2010 11 4 55504 0.1997 0.3218 -0.10320 2010 11 5 55505 0.1989 0.3202 -0.10471 2010 11 6 55506 0.1981 0.3186 -0.10599 2010 11 7 55507 0.1973 0.3170 -0.10702 2010 11 8 55508 0.1964 0.3154 -0.10787 2010 11 9 55509 0.1955 0.3139 -0.10863 2010 11 10 55510 0.1946 0.3123 -0.10938 2010 11 11 55511 0.1937 0.3108 -0.11018 2010 11 12 55512 0.1927 0.3093 -0.11109 2010 11 13 55513 0.1917 0.3078 -0.11211 2010 11 14 55514 0.1907 0.3063 -0.11323 2010 11 15 55515 0.1897 0.3049 -0.11444 2010 11 16 55516 0.1886 0.3034 -0.11570 2010 11 17 55517 0.1875 0.3020 -0.11696 2010 11 18 55518 0.1864 0.3006 -0.11817 2010 11 19 55519 0.1853 0.2992 -0.11930 2010 11 20 55520 0.1842 0.2978 -0.12031 2010 11 21 55521 0.1830 0.2965 -0.12120 2010 11 22 55522 0.1818 0.2951 -0.12191 2010 11 23 55523 0.1806 0.2938 -0.12256 2010 11 24 55524 0.1794 0.2925 -0.12320 2010 11 25 55525 0.1782 0.2912 -0.12393 2010 11 26 55526 0.1769 0.2899 -0.12480 2010 11 27 55527 0.1756 0.2887 -0.12589 2010 11 28 55528 0.1743 0.2875 -0.12717 2010 11 29 55529 0.1730 0.2863 -0.12862 2010 11 30 55530 0.1717 0.2851 -0.13013 2010 12 1 55531 0.1703 0.2839 -0.13162 2010 12 2 55532 0.1690 0.2828 -0.13297 2010 12 3 55533 0.1676 0.2817 -0.13411 2010 12 4 55534 0.1662 0.2806 -0.13503 2010 12 5 55535 0.1648 0.2795 -0.13574 2010 12 6 55536 0.1633 0.2785 -0.13633 2010 12 7 55537 0.1619 0.2774 -0.13687 2010 12 8 55538 0.1605 0.2764 -0.13745 2010 12 9 55539 0.1590 0.2754 -0.13811 2010 12 10 55540 0.1575 0.2745 -0.13889 2010 12 11 55541 0.1560 0.2735 -0.13977 2010 12 12 55542 0.1545 0.2726 -0.14074 2010 12 13 55543 0.1530 0.2717 -0.14176 2010 12 14 55544 0.1515 0.2709 -0.14278 2010 12 15 55545 0.1499 0.2700 -0.14376 2010 12 16 55546 0.1484 0.2692 -0.14466 2010 12 17 55547 0.1468 0.2684 -0.14546 2010 12 18 55548 0.1453 0.2677 -0.14613 2010 12 19 55549 0.1437 0.2669 -0.14668 2010 12 20 55550 0.1421 0.2662 -0.14715 2010 12 21 55551 0.1405 0.2655 -0.14760 2010 12 22 55552 0.1389 0.2648 -0.14812 2010 12 23 55553 0.1373 0.2642 -0.14879 2010 12 24 55554 0.1357 0.2636 -0.14967 2010 12 25 55555 0.1341 0.2630 -0.15077 2010 12 26 55556 0.1325 0.2624 -0.15204 2010 12 27 55557 0.1309 0.2619 -0.15340 2010 12 28 55558 0.1293 0.2613 -0.15473 2010 12 29 55559 0.1276 0.2609 -0.15593 2010 12 30 55560 0.1260 0.2604 -0.15694 2010 12 31 55561 0.1243 0.2599 -0.15772 2011 1 1 55562 0.1227 0.2595 -0.15831 2011 1 2 55563 0.1211 0.2591 -0.15877 2011 1 3 55564 0.1194 0.2588 -0.15916 2011 1 4 55565 0.1178 0.2584 -0.15958 2011 1 5 55566 0.1161 0.2581 -0.16008 2011 1 6 55567 0.1145 0.2578 -0.16070 2011 1 7 55568 0.1128 0.2576 -0.16144 2011 1 8 55569 0.1112 0.2574 -0.16228 2011 1 9 55570 0.1096 0.2571 -0.16320 2011 1 10 55571 0.1079 0.2570 -0.16413 2011 1 11 55572 0.1063 0.2568 -0.16504 2011 1 12 55573 0.1046 0.2567 -0.16590 2011 1 13 55574 0.1030 0.2566 -0.16666 2011 1 14 55575 0.1014 0.2565 -0.16731 2011 1 15 55576 0.0998 0.2564 -0.16785 2011 1 16 55577 0.0981 0.2564 -0.16830 2011 1 17 55578 0.0965 0.2564 -0.16872 2011 1 18 55579 0.0949 0.2564 -0.16919 2011 1 19 55580 0.0933 0.2565 -0.16980 2011 1 20 55581 0.0917 0.2566 -0.17062 2011 1 21 55582 0.0901 0.2567 -0.17170 2011 1 22 55583 0.0885 0.2568 -0.17300 2011 1 23 55584 0.0870 0.2569 -0.17444 2011 1 24 55585 0.0854 0.2571 -0.17589 2011 1 25 55586 0.0838 0.2573 -0.17723 2011 1 26 55587 0.0823 0.2575 -0.17835 2011 1 27 55588 0.0807 0.2578 -0.17924 2011 1 28 55589 0.0792 0.2580 -0.17991 2011 1 29 55590 0.0777 0.2583 -0.18043 2011 1 30 55591 0.0762 0.2586 -0.18088 2011 1 31 55592 0.0747 0.2590 -0.18133 2011 2 1 55593 0.0732 0.2594 -0.18185 2011 2 2 55594 0.0717 0.2597 -0.18248 2011 2 3 55595 0.0702 0.2602 -0.18324 2011 2 4 55596 0.0688 0.2606 -0.18411 2011 2 5 55597 0.0673 0.2610 -0.18506 2011 2 6 55598 0.0659 0.2615 -0.18606 2011 2 7 55599 0.0645 0.2620 -0.18704 2011 2 8 55600 0.0631 0.2626 -0.18797 2011 2 9 55601 0.0617 0.2631 -0.18880 2011 2 10 55602 0.0604 0.2637 -0.18953 2011 2 11 55603 0.0590 0.2643 -0.19015 2011 2 12 55604 0.0577 0.2649 -0.19069 2011 2 13 55605 0.0563 0.2655 -0.19119 2011 2 14 55606 0.0550 0.2661 -0.19174 2011 2 15 55607 0.0537 0.2668 -0.19244 2011 2 16 55608 0.0525 0.2675 -0.19338 2011 2 17 55609 0.0512 0.2682 -0.19464 2011 2 18 55610 0.0500 0.2690 -0.19622 2011 2 19 55611 0.0487 0.2697 -0.19805 2011 2 20 55612 0.0475 0.2705 -0.19999 2011 2 21 55613 0.0463 0.2713 -0.20188 2011 2 22 55614 0.0452 0.2721 -0.20358 2011 2 23 55615 0.0440 0.2729 -0.20503 2011 2 24 55616 0.0429 0.2737 -0.20621 2011 2 25 55617 0.0418 0.2746 -0.20721 2011 2 26 55618 0.0407 0.2755 -0.20809 2011 2 27 55619 0.0396 0.2764 -0.20893 2011 2 28 55620 0.0386 0.2773 -0.20981 2011 3 1 55621 0.0375 0.2782 -0.21076 2011 3 2 55622 0.0365 0.2792 -0.21180 2011 3 3 55623 0.0355 0.2801 -0.21295 2011 3 4 55624 0.0345 0.2811 -0.21418 2011 3 5 55625 0.0336 0.2821 -0.21546 2011 3 6 55626 0.0327 0.2831 -0.21674 2011 3 7 55627 0.0318 0.2841 -0.21796 2011 3 8 55628 0.0309 0.2852 -0.21910 2011 3 9 55629 0.0300 0.2862 -0.22013 2011 3 10 55630 0.0292 0.2873 -0.22104 2011 3 11 55631 0.0283 0.2884 -0.22183 2011 3 12 55632 0.0275 0.2894 -0.22253 2011 3 13 55633 0.0268 0.2905 -0.22323 2011 3 14 55634 0.0260 0.2917 -0.22400 2011 3 15 55635 0.0253 0.2928 -0.22494 2011 3 16 55636 0.0246 0.2939 -0.22610 2011 3 17 55637 0.0239 0.2951 -0.22756 2011 3 18 55638 0.0232 0.2962 -0.22931 2011 3 19 55639 0.0226 0.2974 -0.23123 2011 3 20 55640 0.0220 0.2986 -0.23316 2011 3 21 55641 0.0214 0.2997 -0.23496 2011 3 22 55642 0.0208 0.3009 -0.23649 2011 3 23 55643 0.0203 0.3021 -0.23769 2011 3 24 55644 0.0198 0.3034 -0.23866 2011 3 25 55645 0.0193 0.3046 -0.23944 2011 3 26 55646 0.0188 0.3058 -0.24018 2011 3 27 55647 0.0183 0.3070 -0.24096 2011 3 28 55648 0.0179 0.3083 -0.24186 2011 3 29 55649 0.0175 0.3095 -0.24296 2011 3 30 55650 0.0171 0.3108 -0.24423 2011 3 31 55651 0.0168 0.3121 -0.24562 2011 4 1 55652 0.0165 0.3133 -0.24709 2011 4 2 55653 0.0162 0.3146 -0.24863 2011 4 3 55654 0.0159 0.3159 -0.25023 2011 4 4 55655 0.0156 0.3171 -0.25179 2011 4 5 55656 0.0154 0.3184 -0.25326 2011 4 6 55657 0.0152 0.3197 -0.25457 2011 4 7 55658 0.0150 0.3210 -0.25576 2011 4 8 55659 0.0148 0.3223 -0.25684 2011 4 9 55660 0.0147 0.3236 -0.25789 2011 4 10 55661 0.0146 0.3249 -0.25894 2011 4 11 55662 0.0145 0.3262 -0.26002 2011 4 12 55663 0.0144 0.3275 -0.26120 2011 4 13 55664 0.0144 0.3288 -0.26253 2011 4 14 55665 0.0143 0.3301 -0.26403 2011 4 15 55666 0.0144 0.3314 -0.26569 2011 4 16 55667 0.0144 0.3327 -0.26746 2011 4 17 55668 0.0144 0.3340 -0.26921 2011 4 18 55669 0.0145 0.3353 -0.27079 2011 4 19 55670 0.0146 0.3366 -0.27206 2011 4 20 55671 0.0147 0.3379 -0.27309 2011 4 21 55672 0.0149 0.3392 -0.27395 2011 4 22 55673 0.0150 0.3405 -0.27476 2011 4 23 55674 0.0152 0.3418 -0.27554 2011 4 24 55675 0.0154 0.3431 -0.27637 2011 4 25 55676 0.0157 0.3444 -0.27726 2011 4 26 55677 0.0159 0.3456 -0.27826 2011 4 27 55678 0.0162 0.3469 -0.27938 2011 4 28 55679 0.0165 0.3482 -0.28056 2011 4 29 55680 0.0168 0.3494 -0.28176 2011 4 30 55681 0.0171 0.3507 -0.28291 2011 5 1 55682 0.0175 0.3520 -0.28395 2011 5 2 55683 0.0179 0.3532 -0.28486 2011 5 3 55684 0.0183 0.3545 -0.28566 2011 5 4 55685 0.0187 0.3557 -0.28630 2011 5 5 55686 0.0192 0.3569 -0.28675 2011 5 6 55687 0.0196 0.3582 -0.28705 2011 5 7 55688 0.0201 0.3594 -0.28731 2011 5 8 55689 0.0206 0.3606 -0.28766 2011 5 9 55690 0.0211 0.3618 -0.28811 2011 5 10 55691 0.0217 0.3630 -0.28869 2011 5 11 55692 0.0223 0.3641 -0.28945 2011 5 12 55693 0.0228 0.3653 -0.29035 2011 5 13 55694 0.0234 0.3665 -0.29136 2011 5 14 55695 0.0241 0.3676 -0.29242 2011 5 15 55696 0.0247 0.3688 -0.29334 2011 5 16 55697 0.0254 0.3699 -0.29403 2011 5 17 55698 0.0260 0.3710 -0.29446 2011 5 18 55699 0.0267 0.3722 -0.29473 2011 5 19 55700 0.0274 0.3733 -0.29494 2011 5 20 55701 0.0281 0.3744 -0.29516 2011 5 21 55702 0.0289 0.3754 -0.29544 2011 5 22 55703 0.0296 0.3765 -0.29577 2011 5 23 55704 0.0304 0.3776 -0.29616 2011 5 24 55705 0.0312 0.3786 -0.29660 2011 5 25 55706 0.0320 0.3796 -0.29707 2011 5 26 55707 0.0328 0.3807 -0.29757 2011 5 27 55708 0.0337 0.3817 -0.29803 2011 5 28 55709 0.0345 0.3827 -0.29843 2011 5 29 55710 0.0354 0.3836 -0.29875 2011 5 30 55711 0.0362 0.3846 -0.29895 2011 5 31 55712 0.0371 0.3855 -0.29902 2011 6 1 55713 0.0380 0.3865 -0.29895 2011 6 2 55714 0.0389 0.3874 -0.29878 2011 6 3 55715 0.0399 0.3883 -0.29863 2011 6 4 55716 0.0408 0.3892 -0.29860 2011 6 5 55717 0.0418 0.3901 -0.29865 2011 6 6 55718 0.0427 0.3910 -0.29882 2011 6 7 55719 0.0437 0.3918 -0.29916 2011 6 8 55720 0.0447 0.3926 -0.29965 2011 6 9 55721 0.0457 0.3935 -0.30024 2011 6 10 55722 0.0467 0.3943 -0.30084 2011 6 11 55723 0.0477 0.3950 -0.30132 2011 6 12 55724 0.0487 0.3958 -0.30160 2011 6 13 55725 0.0497 0.3966 -0.30166 2011 6 14 55726 0.0508 0.3973 -0.30151 2011 6 15 55727 0.0518 0.3980 -0.30122 2011 6 16 55728 0.0529 0.3987 -0.30094 2011 6 17 55729 0.0540 0.3994 -0.30072 2011 6 18 55730 0.0550 0.4001 -0.30060 2011 6 19 55731 0.0561 0.4007 -0.30058 2011 6 20 55732 0.0572 0.4014 -0.30067 2011 6 21 55733 0.0583 0.4020 -0.30082 2011 6 22 55734 0.0594 0.4026 -0.30105 2011 6 23 55735 0.0605 0.4032 -0.30126 2011 6 24 55736 0.0616 0.4038 -0.30140 2011 6 25 55737 0.0627 0.4043 -0.30148 2011 6 26 55738 0.0638 0.4048 -0.30145 2011 6 27 55739 0.0650 0.4054 -0.30123 2011 6 28 55740 0.0661 0.4059 -0.30079 2011 6 29 55741 0.0672 0.4063 -0.30020 2011 6 30 55742 0.0683 0.4068 -0.29961 2011 7 1 55743 0.0695 0.4072 -0.29911 2011 7 2 55744 0.0706 0.4077 -0.29873 2011 7 3 55745 0.0718 0.4081 -0.29850 2011 7 4 55746 0.0729 0.4085 -0.29846 2011 7 5 55747 0.0740 0.4088 -0.29864 2011 7 6 55748 0.0752 0.4092 -0.29899 2011 7 7 55749 0.0763 0.4095 -0.29935 2011 7 8 55750 0.0775 0.4099 -0.29962 2011 7 9 55751 0.0786 0.4102 -0.29977 2011 7 10 55752 0.0798 0.4104 -0.29970 2011 7 11 55753 0.0809 0.4107 -0.29942 2011 7 12 55754 0.0820 0.4109 -0.29902 2011 7 13 55755 0.0832 0.4112 -0.29857 2011 7 14 55756 0.0843 0.4114 -0.29812 2011 7 15 55757 0.0855 0.4116 -0.29772 2011 7 16 55758 0.0866 0.4118 -0.29745 2011 7 17 55759 0.0877 0.4119 -0.29731 2011 7 18 55760 0.0888 0.4121 -0.29731 2011 7 19 55761 0.0900 0.4122 -0.29739 2011 7 20 55762 0.0911 0.4123 -0.29749 2011 7 21 55763 0.0922 0.4124 -0.29756 2011 7 22 55764 0.0933 0.4124 -0.29755 2011 7 23 55765 0.0944 0.4125 -0.29743 2011 7 24 55766 0.0955 0.4125 -0.29720 2011 7 25 55767 0.0966 0.4125 -0.29686 2011 7 26 55768 0.0977 0.4125 -0.29646 2011 7 27 55769 0.0988 0.4125 -0.29606 2011 7 28 55770 0.0999 0.4125 -0.29571 2011 7 29 55771 0.1009 0.4124 -0.29549 2011 7 30 55772 0.1020 0.4124 -0.29541 2011 7 31 55773 0.1030 0.4123 -0.29553 2011 8 1 55774 0.1041 0.4122 -0.29584 2011 8 2 55775 0.1051 0.4121 -0.29633 2011 8 3 55776 0.1062 0.4120 -0.29688 2011 8 4 55777 0.1072 0.4118 -0.29735 2011 8 5 55778 0.1082 0.4116 -0.29770 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) 55394 -71.10 0.74 -9.23 0.34 55395 -71.47 0.74 -9.22 0.34 55396 -71.57 0.74 -9.29 0.34 55397 -71.54 0.74 -9.44 0.34 55398 -71.55 0.15 -9.61 0.34 55399 -71.69 0.15 -9.73 0.34 55400 -71.87 0.15 -9.81 0.34 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 55349 -63.1 -10.0 55350 -63.2 -10.2 55351 -63.2 -10.4 55352 -63.1 -10.4 55353 -63.2 -10.3 55354 -63.6 -10.2 55355 -64.1 -10.2 55356 -64.5 -10.2 55357 -64.7 -10.1 55358 -64.9 -10.0 55359 -65.0 -9.9 55360 -65.1 -10.0 55361 -65.0 -10.1 55362 -64.9 -10.1 55363 -64.8 -10.0 55364 -65.1 -9.8 55365 -65.5 -9.8 55366 -65.8 -9.8 55367 -66.0 -9.8 55368 -66.1 -9.7 55369 -66.2 -9.6 55370 -66.3 -9.6 55371 -66.4 -9.7 55372 -66.4 -9.8 55373 -66.4 -9.9 55374 -66.5 -9.9 55375 -66.7 -9.7 55376 -66.9 -9.5 55377 -67.2 -9.5 55378 -67.4 -9.7 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55394 -0.169 0.294 -0.004 0.340 55395 -0.180 0.294 0.020 0.340 55396 -0.182 0.294 0.041 0.340 55397 -0.181 0.294 0.042 0.340 55398 -0.165 0.060 0.018 0.340 55399 -0.149 0.060 0.000 0.340 55400 -0.137 0.060 -0.003 0.340 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 55349 -0.03 -0.02 55350 -0.04 -0.02 55351 -0.05 -0.09 55352 -0.02 -0.10 55353 -0.01 -0.07 55354 -0.02 0.03 55355 0.00 0.09 55356 0.05 0.08 55357 0.11 0.04 55358 0.12 -0.03 55359 0.12 0.04 55360 0.06 0.07 55361 0.01 0.10 55362 -0.04 0.07 55363 -0.01 -0.03 55364 -0.01 -0.03 55365 0.01 -0.12 55366 0.02 -0.12 55367 -0.02 -0.11 55368 -0.05 -0.04 55369 -0.03 0.02 55370 0.04 0.04 55371 0.11 0.06 55372 0.15 0.13 55373 0.14 0.15 55374 0.07 0.09 55375 -0.01 0.09 55376 -0.05 0.11 55377 -0.11 0.08 55378 -0.10 0.00 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.