********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 9 September 2010 Vol. XXIII No. 036 ______________________________________________________________________ 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 9 3 55442 0.20873 .00009 0.42121 .00009 -0.050716 0.000007 10 9 4 55443 0.21007 .00009 0.41939 .00009 -0.050691 0.000007 10 9 5 55444 0.21149 .00009 0.41775 .00009 -0.050829 0.000007 10 9 6 55445 0.21271 .00009 0.41617 .00009 -0.051219 0.000008 10 9 7 55446 0.21414 .00009 0.41440 .00009 -0.051908 0.000008 10 9 8 55447 0.21575 .00009 0.41258 .00009 -0.052861 0.000007 10 9 9 55448 0.21713 .00009 0.41082 .00009 -0.053928 0.000007 _______________________________________________________________________ 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 = 0.0951 + 0.1290 cos A + 0.0085 sin A - 0.0167 cos C + 0.0672 sin C y = 0.3444 + 0.0033 cos A - 0.1152 sin A + 0.0672 cos C + 0.0167 sin C UT1-UTC = -0.0758 - 0.00080 (MJD - 55456) - (UT2-UT1) where A = 2*pi*(MJD-55448)/365.25 and C = 2*pi*(MJD-55448)/435. TAI-UTC(MJD 55449) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55448)**0.80 S t = 0.00025 (MJD-55448)**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 9 10 55449 0.2185 0.4091 -0.05489 2010 9 11 55450 0.2195 0.4073 -0.05561 2010 9 12 55451 0.2204 0.4055 -0.05602 2010 9 13 55452 0.2213 0.4037 -0.05614 2010 9 14 55453 0.2221 0.4018 -0.05602 2010 9 15 55454 0.2229 0.4000 -0.05576 2010 9 16 55455 0.2236 0.3981 -0.05547 2010 9 17 55456 0.2243 0.3962 -0.05522 2010 9 18 55457 0.2249 0.3943 -0.05508 2010 9 19 55458 0.2255 0.3924 -0.05511 2010 9 20 55459 0.2261 0.3905 -0.05532 2010 9 21 55460 0.2266 0.3886 -0.05572 2010 9 22 55461 0.2271 0.3867 -0.05627 2010 9 23 55462 0.2275 0.3848 -0.05690 2010 9 24 55463 0.2279 0.3828 -0.05755 2010 9 25 55464 0.2283 0.3809 -0.05818 2010 9 26 55465 0.2287 0.3789 -0.05875 2010 9 27 55466 0.2290 0.3770 -0.05923 2010 9 28 55467 0.2292 0.3750 -0.05963 2010 9 29 55468 0.2295 0.3731 -0.05996 2010 9 30 55469 0.2297 0.3711 -0.06029 2010 10 1 55470 0.2298 0.3691 -0.06069 2010 10 2 55471 0.2300 0.3672 -0.06124 2010 10 3 55472 0.2301 0.3652 -0.06203 2010 10 4 55473 0.2301 0.3632 -0.06312 2010 10 5 55474 0.2302 0.3613 -0.06447 2010 10 6 55475 0.2302 0.3593 -0.06601 2010 10 7 55476 0.2301 0.3573 -0.06760 2010 10 8 55477 0.2300 0.3554 -0.06907 2010 10 9 55478 0.2299 0.3534 -0.07033 2010 10 10 55479 0.2298 0.3515 -0.07132 2010 10 11 55480 0.2296 0.3495 -0.07206 2010 10 12 55481 0.2294 0.3475 -0.07264 2010 10 13 55482 0.2292 0.3456 -0.07316 2010 10 14 55483 0.2289 0.3436 -0.07370 2010 10 15 55484 0.2286 0.3417 -0.07431 2010 10 16 55485 0.2282 0.3398 -0.07504 2010 10 17 55486 0.2278 0.3378 -0.07590 2010 10 18 55487 0.2274 0.3359 -0.07688 2010 10 19 55488 0.2270 0.3340 -0.07794 2010 10 20 55489 0.2265 0.3321 -0.07904 2010 10 21 55490 0.2260 0.3302 -0.08013 2010 10 22 55491 0.2255 0.3283 -0.08117 2010 10 23 55492 0.2249 0.3264 -0.08210 2010 10 24 55493 0.2243 0.3246 -0.08292 2010 10 25 55494 0.2236 0.3227 -0.08362 2010 10 26 55495 0.2230 0.3208 -0.08422 2010 10 27 55496 0.2223 0.3190 -0.08478 2010 10 28 55497 0.2215 0.3172 -0.08536 2010 10 29 55498 0.2208 0.3153 -0.08604 2010 10 30 55499 0.2200 0.3135 -0.08690 2010 10 31 55500 0.2192 0.3118 -0.08799 2010 11 1 55501 0.2183 0.3100 -0.08930 2010 11 2 55502 0.2174 0.3082 -0.09080 2010 11 3 55503 0.2165 0.3065 -0.09237 2010 11 4 55504 0.2156 0.3047 -0.09390 2010 11 5 55505 0.2146 0.3030 -0.09527 2010 11 6 55506 0.2136 0.3013 -0.09641 2010 11 7 55507 0.2126 0.2996 -0.09732 2010 11 8 55508 0.2116 0.2979 -0.09804 2010 11 9 55509 0.2105 0.2963 -0.09867 2010 11 10 55510 0.2094 0.2946 -0.09930 2010 11 11 55511 0.2083 0.2930 -0.10000 2010 11 12 55512 0.2071 0.2914 -0.10080 2010 11 13 55513 0.2059 0.2898 -0.10174 2010 11 14 55514 0.2047 0.2882 -0.10279 2010 11 15 55515 0.2035 0.2867 -0.10394 2010 11 16 55516 0.2022 0.2852 -0.10514 2010 11 17 55517 0.2010 0.2837 -0.10635 2010 11 18 55518 0.1997 0.2822 -0.10753 2010 11 19 55519 0.1983 0.2807 -0.10862 2010 11 20 55520 0.1970 0.2792 -0.10959 2010 11 21 55521 0.1956 0.2778 -0.11044 2010 11 22 55522 0.1942 0.2764 -0.11118 2010 11 23 55523 0.1928 0.2750 -0.11184 2010 11 24 55524 0.1914 0.2737 -0.11249 2010 11 25 55525 0.1899 0.2723 -0.11321 2010 11 26 55526 0.1884 0.2710 -0.11409 2010 11 27 55527 0.1869 0.2697 -0.11517 2010 11 28 55528 0.1854 0.2685 -0.11647 2010 11 29 55529 0.1839 0.2672 -0.11792 2010 11 30 55530 0.1824 0.2660 -0.11946 2010 12 1 55531 0.1808 0.2648 -0.12096 2010 12 2 55532 0.1792 0.2636 -0.12233 2010 12 3 55533 0.1776 0.2625 -0.12350 2010 12 4 55534 0.1760 0.2613 -0.12444 2010 12 5 55535 0.1743 0.2602 -0.12518 2010 12 6 55536 0.1727 0.2592 -0.12579 2010 12 7 55537 0.1710 0.2581 -0.12636 2010 12 8 55538 0.1693 0.2571 -0.12697 2010 12 9 55539 0.1676 0.2561 -0.12766 2010 12 10 55540 0.1659 0.2551 -0.12845 2010 12 11 55541 0.1642 0.2542 -0.12935 2010 12 12 55542 0.1625 0.2533 -0.13033 2010 12 13 55543 0.1607 0.2524 -0.13136 2010 12 14 55544 0.1590 0.2515 -0.13238 2010 12 15 55545 0.1572 0.2507 -0.13336 2010 12 16 55546 0.1554 0.2499 -0.13425 2010 12 17 55547 0.1537 0.2491 -0.13503 2010 12 18 55548 0.1519 0.2484 -0.13568 2010 12 19 55549 0.1500 0.2476 -0.13620 2010 12 20 55550 0.1482 0.2469 -0.13664 2010 12 21 55551 0.1464 0.2463 -0.13705 2010 12 22 55552 0.1446 0.2456 -0.13753 2010 12 23 55553 0.1428 0.2450 -0.13816 2010 12 24 55554 0.1409 0.2444 -0.13900 2010 12 25 55555 0.1391 0.2439 -0.14006 2010 12 26 55556 0.1372 0.2433 -0.14129 2010 12 27 55557 0.1354 0.2428 -0.14257 2010 12 28 55558 0.1335 0.2424 -0.14382 2010 12 29 55559 0.1316 0.2419 -0.14494 2010 12 30 55560 0.1298 0.2415 -0.14586 2010 12 31 55561 0.1279 0.2411 -0.14657 2011 1 1 55562 0.1260 0.2408 -0.14708 2011 1 2 55563 0.1241 0.2405 -0.14746 2011 1 3 55564 0.1223 0.2402 -0.14778 2011 1 4 55565 0.1204 0.2399 -0.14813 2011 1 5 55566 0.1185 0.2397 -0.14857 2011 1 6 55567 0.1167 0.2395 -0.14912 2011 1 7 55568 0.1148 0.2393 -0.14980 2011 1 8 55569 0.1129 0.2391 -0.15058 2011 1 9 55570 0.1110 0.2390 -0.15143 2011 1 10 55571 0.1092 0.2389 -0.15230 2011 1 11 55572 0.1073 0.2388 -0.15315 2011 1 12 55573 0.1054 0.2388 -0.15395 2011 1 13 55574 0.1036 0.2388 -0.15465 2011 1 14 55575 0.1017 0.2388 -0.15523 2011 1 15 55576 0.0999 0.2389 -0.15571 2011 1 16 55577 0.0981 0.2389 -0.15611 2011 1 17 55578 0.0962 0.2390 -0.15647 2011 1 18 55579 0.0944 0.2392 -0.15688 2011 1 19 55580 0.0926 0.2393 -0.15743 2011 1 20 55581 0.0908 0.2395 -0.15820 2011 1 21 55582 0.0889 0.2397 -0.15922 2011 1 22 55583 0.0872 0.2400 -0.16048 2011 1 23 55584 0.0854 0.2403 -0.16187 2011 1 24 55585 0.0836 0.2406 -0.16328 2011 1 25 55586 0.0818 0.2409 -0.16457 2011 1 26 55587 0.0801 0.2412 -0.16566 2011 1 27 55588 0.0783 0.2416 -0.16651 2011 1 28 55589 0.0766 0.2420 -0.16715 2011 1 29 55590 0.0748 0.2425 -0.16764 2011 1 30 55591 0.0731 0.2429 -0.16806 2011 1 31 55592 0.0714 0.2434 -0.16850 2011 2 1 55593 0.0698 0.2439 -0.16900 2011 2 2 55594 0.0681 0.2444 -0.16963 2011 2 3 55595 0.0664 0.2450 -0.17038 2011 2 4 55596 0.0648 0.2456 -0.17126 2011 2 5 55597 0.0631 0.2462 -0.17223 2011 2 6 55598 0.0615 0.2468 -0.17325 2011 2 7 55599 0.0599 0.2475 -0.17426 2011 2 8 55600 0.0583 0.2482 -0.17523 2011 2 9 55601 0.0568 0.2489 -0.17613 2011 2 10 55602 0.0552 0.2496 -0.17692 2011 2 11 55603 0.0537 0.2504 -0.17760 2011 2 12 55604 0.0522 0.2512 -0.17820 2011 2 13 55605 0.0507 0.2520 -0.17875 2011 2 14 55606 0.0492 0.2528 -0.17933 2011 2 15 55607 0.0478 0.2537 -0.18000 2011 2 16 55608 0.0463 0.2545 -0.18088 2011 2 17 55609 0.0449 0.2554 -0.18202 2011 2 18 55610 0.0435 0.2563 -0.18344 2011 2 19 55611 0.0421 0.2573 -0.18508 2011 2 20 55612 0.0407 0.2582 -0.18681 2011 2 21 55613 0.0394 0.2592 -0.18849 2011 2 22 55614 0.0381 0.2602 -0.18998 2011 2 23 55615 0.0368 0.2612 -0.19123 2011 2 24 55616 0.0355 0.2623 -0.19223 2011 2 25 55617 0.0342 0.2633 -0.19305 2011 2 26 55618 0.0330 0.2644 -0.19376 2011 2 27 55619 0.0318 0.2655 -0.19446 2011 2 28 55620 0.0306 0.2666 -0.19522 2011 3 1 55621 0.0295 0.2677 -0.19608 2011 3 2 55622 0.0283 0.2689 -0.19707 2011 3 3 55623 0.0272 0.2700 -0.19818 2011 3 4 55624 0.0261 0.2712 -0.19939 2011 3 5 55625 0.0250 0.2724 -0.20067 2011 3 6 55626 0.0240 0.2736 -0.20197 2011 3 7 55627 0.0230 0.2749 -0.20324 2011 3 8 55628 0.0220 0.2761 -0.20443 2011 3 9 55629 0.0210 0.2774 -0.20553 2011 3 10 55630 0.0200 0.2787 -0.20653 2011 3 11 55631 0.0191 0.2799 -0.20742 2011 3 12 55632 0.0182 0.2812 -0.20825 2011 3 13 55633 0.0174 0.2826 -0.20906 2011 3 14 55634 0.0165 0.2839 -0.20993 2011 3 15 55635 0.0157 0.2852 -0.21095 2011 3 16 55636 0.0149 0.2866 -0.21217 2011 3 17 55637 0.0141 0.2880 -0.21365 2011 3 18 55638 0.0134 0.2893 -0.21537 2011 3 19 55639 0.0127 0.2907 -0.21723 2011 3 20 55640 0.0120 0.2921 -0.21909 2011 3 21 55641 0.0113 0.2935 -0.22079 2011 3 22 55642 0.0107 0.2949 -0.22224 2011 3 23 55643 0.0101 0.2964 -0.22339 2011 3 24 55644 0.0095 0.2978 -0.22428 2011 3 25 55645 0.0089 0.2993 -0.22499 2011 3 26 55646 0.0084 0.3007 -0.22563 2011 3 27 55647 0.0079 0.3022 -0.22630 2011 3 28 55648 0.0074 0.3036 -0.22704 2011 3 29 55649 0.0070 0.3051 -0.22791 2011 3 30 55650 0.0066 0.3066 -0.22892 2011 3 31 55651 0.0062 0.3081 -0.23006 2011 4 1 55652 0.0058 0.3096 -0.23133 2011 4 2 55653 0.0055 0.3111 -0.23266 2011 4 3 55654 0.0052 0.3126 -0.23402 2011 4 4 55655 0.0049 0.3141 -0.23536 2011 4 5 55656 0.0047 0.3156 -0.23662 2011 4 6 55657 0.0044 0.3171 -0.23780 2011 4 7 55658 0.0042 0.3186 -0.23889 2011 4 8 55659 0.0041 0.3201 -0.23991 2011 4 9 55660 0.0039 0.3217 -0.24090 2011 4 10 55661 0.0038 0.3232 -0.24194 2011 4 11 55662 0.0037 0.3247 -0.24309 2011 4 12 55663 0.0037 0.3262 -0.24445 2011 4 13 55664 0.0036 0.3278 -0.24606 2011 4 14 55665 0.0036 0.3293 -0.24795 2011 4 15 55666 0.0036 0.3308 -0.25004 2011 4 16 55667 0.0037 0.3324 -0.25221 2011 4 17 55668 0.0038 0.3339 -0.25432 2011 4 18 55669 0.0039 0.3354 -0.25620 2011 4 19 55670 0.0040 0.3369 -0.25778 2011 4 20 55671 0.0042 0.3384 -0.25906 2011 4 21 55672 0.0043 0.3400 -0.26009 2011 4 22 55673 0.0045 0.3415 -0.26100 2011 4 23 55674 0.0048 0.3430 -0.26186 2011 4 24 55675 0.0050 0.3445 -0.26279 2011 4 25 55676 0.0053 0.3460 -0.26383 2011 4 26 55677 0.0056 0.3475 -0.26504 2011 4 27 55678 0.0060 0.3490 -0.26640 2011 4 28 55679 0.0063 0.3505 -0.26786 2011 4 29 55680 0.0067 0.3520 -0.26935 2011 4 30 55681 0.0071 0.3534 -0.27081 2011 5 1 55682 0.0076 0.3549 -0.27222 2011 5 2 55683 0.0080 0.3564 -0.27349 2011 5 3 55684 0.0085 0.3578 -0.27458 2011 5 4 55685 0.0090 0.3593 -0.27548 2011 5 5 55686 0.0095 0.3607 -0.27617 2011 5 6 55687 0.0101 0.3621 -0.27677 2011 5 7 55688 0.0107 0.3635 -0.27736 2011 5 8 55689 0.0113 0.3650 -0.27798 2011 5 9 55690 0.0119 0.3664 -0.27873 2011 5 10 55691 0.0126 0.3677 -0.27969 2011 5 11 55692 0.0132 0.3691 -0.28089 2011 5 12 55693 0.0139 0.3705 -0.28225 2011 5 13 55694 0.0146 0.3719 -0.28368 2011 5 14 55695 0.0154 0.3732 -0.28507 2011 5 15 55696 0.0161 0.3745 -0.28630 2011 5 16 55697 0.0169 0.3759 -0.28734 2011 5 17 55698 0.0177 0.3772 -0.28816 2011 5 18 55699 0.0185 0.3785 -0.28877 2011 5 19 55700 0.0194 0.3798 -0.28917 2011 5 20 55701 0.0202 0.3811 -0.28949 2011 5 21 55702 0.0211 0.3823 -0.28982 2011 5 22 55703 0.0220 0.3836 -0.29023 2011 5 23 55704 0.0229 0.3848 -0.29078 2011 5 24 55705 0.0239 0.3860 -0.29138 2011 5 25 55706 0.0248 0.3872 -0.29204 2011 5 26 55707 0.0258 0.3884 -0.29271 2011 5 27 55708 0.0268 0.3896 -0.29340 2011 5 28 55709 0.0278 0.3908 -0.29399 2011 5 29 55710 0.0288 0.3919 -0.29446 2011 5 30 55711 0.0298 0.3930 -0.29478 2011 5 31 55712 0.0309 0.3941 -0.29492 2011 6 1 55713 0.0320 0.3952 -0.29488 2011 6 2 55714 0.0331 0.3963 -0.29476 2011 6 3 55715 0.0342 0.3974 -0.29458 2011 6 4 55716 0.0353 0.3984 -0.29446 2011 6 5 55717 0.0364 0.3995 -0.29446 2011 6 6 55718 0.0376 0.4005 -0.29467 2011 6 7 55719 0.0387 0.4015 -0.29516 2011 6 8 55720 0.0399 0.4024 -0.29588 2011 6 9 55721 0.0411 0.4034 -0.29673 2011 6 10 55722 0.0423 0.4043 -0.29762 2011 6 11 55723 0.0435 0.4053 -0.29847 2011 6 12 55724 0.0447 0.4062 -0.29925 2011 6 13 55725 0.0460 0.4071 -0.29985 2011 6 14 55726 0.0472 0.4079 -0.30024 2011 6 15 55727 0.0485 0.4088 -0.30044 2011 6 16 55728 0.0497 0.4096 -0.30054 2011 6 17 55729 0.0510 0.4104 -0.30063 2011 6 18 55730 0.0523 0.4112 -0.30080 2011 6 19 55731 0.0536 0.4120 -0.30104 2011 6 20 55732 0.0549 0.4127 -0.30132 2011 6 21 55733 0.0562 0.4134 -0.30159 2011 6 22 55734 0.0575 0.4142 -0.30181 2011 6 23 55735 0.0589 0.4148 -0.30192 2011 6 24 55736 0.0602 0.4155 -0.30194 2011 6 25 55737 0.0615 0.4162 -0.30188 2011 6 26 55738 0.0629 0.4168 -0.30171 2011 6 27 55739 0.0642 0.4174 -0.30141 2011 6 28 55740 0.0656 0.4180 -0.30092 2011 6 29 55741 0.0670 0.4186 -0.30037 2011 6 30 55742 0.0683 0.4191 -0.29983 2011 7 1 55743 0.0697 0.4196 -0.29937 2011 7 2 55744 0.0711 0.4201 -0.29901 2011 7 3 55745 0.0725 0.4206 -0.29881 2011 7 4 55746 0.0738 0.4211 -0.29880 2011 7 5 55747 0.0752 0.4215 -0.29899 2011 7 6 55748 0.0766 0.4219 -0.29935 2011 7 7 55749 0.0780 0.4223 -0.29976 2011 7 8 55750 0.0794 0.4227 -0.30011 2011 7 9 55751 0.0808 0.4231 -0.30029 2011 7 10 55752 0.0822 0.4234 -0.30023 2011 7 11 55753 0.0836 0.4237 -0.29995 2011 7 12 55754 0.0850 0.4240 -0.29953 2011 7 13 55755 0.0864 0.4243 -0.29900 2011 7 14 55756 0.0878 0.4246 -0.29838 2011 7 15 55757 0.0892 0.4248 -0.29774 2011 7 16 55758 0.0906 0.4250 -0.29717 2011 7 17 55759 0.0919 0.4252 -0.29676 2011 7 18 55760 0.0933 0.4254 -0.29643 2011 7 19 55761 0.0947 0.4255 -0.29609 2011 7 20 55762 0.0961 0.4257 -0.29574 2011 7 21 55763 0.0975 0.4258 -0.29532 2011 7 22 55764 0.0988 0.4259 -0.29483 2011 7 23 55765 0.1002 0.4259 -0.29426 2011 7 24 55766 0.1016 0.4260 -0.29357 2011 7 25 55767 0.1029 0.4260 -0.29273 2011 7 26 55768 0.1043 0.4260 -0.29179 2011 7 27 55769 0.1056 0.4260 -0.29090 2011 7 28 55770 0.1070 0.4260 -0.29011 2011 7 29 55771 0.1083 0.4259 -0.28948 2011 7 30 55772 0.1096 0.4258 -0.28907 2011 7 31 55773 0.1109 0.4257 -0.28886 2011 8 1 55774 0.1123 0.4256 -0.28885 2011 8 2 55775 0.1136 0.4255 -0.28901 2011 8 3 55776 0.1149 0.4253 -0.28924 2011 8 4 55777 0.1162 0.4252 -0.28945 2011 8 5 55778 0.1174 0.4250 -0.28951 2011 8 6 55779 0.1187 0.4248 -0.28940 2011 8 7 55780 0.1200 0.4245 -0.28910 2011 8 8 55781 0.1212 0.4243 -0.28866 2011 8 9 55782 0.1225 0.4240 -0.28813 2011 8 10 55783 0.1237 0.4237 -0.28756 2011 8 11 55784 0.1249 0.4234 -0.28704 2011 8 12 55785 0.1261 0.4231 -0.28667 2011 8 13 55786 0.1273 0.4228 -0.28651 2011 8 14 55787 0.1285 0.4224 -0.28645 2011 8 15 55788 0.1297 0.4221 -0.28644 2011 8 16 55789 0.1308 0.4217 -0.28645 2011 8 17 55790 0.1320 0.4213 -0.28645 2011 8 18 55791 0.1331 0.4208 -0.28638 2011 8 19 55792 0.1342 0.4204 -0.28624 2011 8 20 55793 0.1353 0.4200 -0.28595 2011 8 21 55794 0.1364 0.4195 -0.28554 2011 8 22 55795 0.1375 0.4190 -0.28505 2011 8 23 55796 0.1386 0.4185 -0.28452 2011 8 24 55797 0.1397 0.4180 -0.28402 2011 8 25 55798 0.1407 0.4174 -0.28370 2011 8 26 55799 0.1417 0.4169 -0.28358 2011 8 27 55800 0.1427 0.4163 -0.28372 2011 8 28 55801 0.1437 0.4158 -0.28413 2011 8 29 55802 0.1447 0.4152 -0.28479 2011 8 30 55803 0.1457 0.4146 -0.28561 2011 8 31 55804 0.1466 0.4139 -0.28653 2011 9 1 55805 0.1476 0.4133 -0.28735 2011 9 2 55806 0.1485 0.4127 -0.28798 2011 9 3 55807 0.1494 0.4120 -0.28842 2011 9 4 55808 0.1503 0.4113 -0.28868 2011 9 5 55809 0.1511 0.4106 -0.28876 2011 9 6 55810 0.1520 0.4099 -0.28870 2011 9 7 55811 0.1528 0.4092 -0.28863 2011 9 8 55812 0.1536 0.4085 -0.28869 2011 9 9 55813 0.1544 0.4078 -0.28894 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) 55429 -74.50 0.10 -9.62 0.34 55430 -74.53 0.26 -9.49 0.34 55431 -74.44 0.26 -9.32 0.34 55432 -74.35 0.34 -9.06 0.10 55433 -74.37 0.31 -8.85 0.34 55434 -74.54 0.31 -8.86 0.34 55435 -74.82 0.31 -9.10 0.34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55429 0.087 0.040 -0.012 0.340 55430 0.099 0.103 -0.005 0.340 55431 0.101 0.103 -0.010 0.340 55432 0.090 0.135 0.004 0.100 55433 0.076 0.123 0.020 0.340 55434 0.072 0.123 0.025 0.340 55435 0.064 0.123 0.001 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.