********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 26 August 2010 Vol. XXIII No. 034 ______________________________________________________________________ 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 20 55428 0.18451 .00009 0.44306 .00009 -0.049476 0.000019 10 8 21 55429 0.18670 .00009 0.44117 .00009 -0.049148 0.000019 10 8 22 55430 0.18919 .00009 0.43917 .00009 -0.048937 0.000017 10 8 23 55431 0.19200 .00009 0.43724 .00009 -0.048902 0.000015 10 8 24 55432 0.19486 .00009 0.43574 .00009 -0.049025 0.000014 10 8 25 55433 0.19735 .00009 0.43447 .00009 -0.049267 0.000065 10 8 26 55434 0.19940 .00009 0.43331 .00009 -0.049578 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 = 0.1000 + 0.1216 cos A + 0.0287 sin A - 0.0332 cos C + 0.0716 sin C y = 0.3417 + 0.0224 cos A - 0.1096 sin A + 0.0716 cos C + 0.0332 sin C UT1-UTC = -0.0710 - 0.00081 (MJD - 55442) - (UT2-UT1) where A = 2*pi*(MJD-55434)/365.25 and C = 2*pi*(MJD-55434)/435. TAI-UTC(MJD 55435) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55434)**0.80 S t = 0.00025 (MJD-55434)**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 27 55435 0.2012 0.4320 -0.04989 2010 8 28 55436 0.2027 0.4306 -0.05016 2010 8 29 55437 0.2041 0.4292 -0.05034 2010 8 30 55438 0.2054 0.4277 -0.05042 2010 8 31 55439 0.2066 0.4261 -0.05036 2010 9 1 55440 0.2078 0.4245 -0.05018 2010 9 2 55441 0.2089 0.4228 -0.04993 2010 9 3 55442 0.2100 0.4212 -0.04968 2010 9 4 55443 0.2111 0.4195 -0.04954 2010 9 5 55444 0.2121 0.4177 -0.04961 2010 9 6 55445 0.2131 0.4160 -0.05000 2010 9 7 55446 0.2141 0.4143 -0.05072 2010 9 8 55447 0.2150 0.4125 -0.05171 2010 9 9 55448 0.2159 0.4107 -0.05283 2010 9 10 55449 0.2168 0.4089 -0.05391 2010 9 11 55450 0.2176 0.4071 -0.05482 2010 9 12 55451 0.2184 0.4053 -0.05548 2010 9 13 55452 0.2191 0.4034 -0.05590 2010 9 14 55453 0.2198 0.4016 -0.05614 2010 9 15 55454 0.2205 0.3997 -0.05629 2010 9 16 55455 0.2212 0.3979 -0.05644 2010 9 17 55456 0.2218 0.3960 -0.05665 2010 9 18 55457 0.2224 0.3941 -0.05697 2010 9 19 55458 0.2229 0.3922 -0.05741 2010 9 20 55459 0.2234 0.3903 -0.05798 2010 9 21 55460 0.2239 0.3884 -0.05866 2010 9 22 55461 0.2244 0.3865 -0.05942 2010 9 23 55462 0.2248 0.3846 -0.06023 2010 9 24 55463 0.2251 0.3827 -0.06101 2010 9 25 55464 0.2255 0.3807 -0.06174 2010 9 26 55465 0.2258 0.3788 -0.06238 2010 9 27 55466 0.2261 0.3768 -0.06291 2010 9 28 55467 0.2263 0.3749 -0.06334 2010 9 29 55468 0.2265 0.3729 -0.06368 2010 9 30 55469 0.2267 0.3710 -0.06399 2010 10 1 55470 0.2268 0.3690 -0.06437 2010 10 2 55471 0.2269 0.3671 -0.06489 2010 10 3 55472 0.2270 0.3651 -0.06565 2010 10 4 55473 0.2270 0.3632 -0.06668 2010 10 5 55474 0.2270 0.3612 -0.06797 2010 10 6 55475 0.2270 0.3593 -0.06944 2010 10 7 55476 0.2269 0.3573 -0.07095 2010 10 8 55477 0.2268 0.3554 -0.07234 2010 10 9 55478 0.2266 0.3534 -0.07351 2010 10 10 55479 0.2265 0.3515 -0.07441 2010 10 11 55480 0.2263 0.3495 -0.07507 2010 10 12 55481 0.2260 0.3476 -0.07558 2010 10 13 55482 0.2257 0.3456 -0.07604 2010 10 14 55483 0.2254 0.3437 -0.07653 2010 10 15 55484 0.2251 0.3418 -0.07712 2010 10 16 55485 0.2247 0.3399 -0.07784 2010 10 17 55486 0.2243 0.3379 -0.07869 2010 10 18 55487 0.2239 0.3360 -0.07967 2010 10 19 55488 0.2234 0.3341 -0.08075 2010 10 20 55489 0.2229 0.3322 -0.08188 2010 10 21 55490 0.2224 0.3304 -0.08303 2010 10 22 55491 0.2218 0.3285 -0.08414 2010 10 23 55492 0.2212 0.3266 -0.08518 2010 10 24 55493 0.2205 0.3248 -0.08611 2010 10 25 55494 0.2199 0.3229 -0.08694 2010 10 26 55495 0.2192 0.3211 -0.08769 2010 10 27 55496 0.2185 0.3192 -0.08840 2010 10 28 55497 0.2177 0.3174 -0.08915 2010 10 29 55498 0.2169 0.3156 -0.09001 2010 10 30 55499 0.2161 0.3138 -0.09106 2010 10 31 55500 0.2153 0.3121 -0.09234 2010 11 1 55501 0.2144 0.3103 -0.09386 2010 11 2 55502 0.2135 0.3086 -0.09554 2010 11 3 55503 0.2126 0.3068 -0.09728 2010 11 4 55504 0.2116 0.3051 -0.09898 2010 11 5 55505 0.2106 0.3034 -0.10050 2010 11 6 55506 0.2096 0.3017 -0.10179 2010 11 7 55507 0.2086 0.3000 -0.10284 2010 11 8 55508 0.2075 0.2984 -0.10371 2010 11 9 55509 0.2064 0.2967 -0.10447 2010 11 10 55510 0.2053 0.2951 -0.10522 2010 11 11 55511 0.2041 0.2935 -0.10603 2010 11 12 55512 0.2029 0.2919 -0.10695 2010 11 13 55513 0.2017 0.2903 -0.10798 2010 11 14 55514 0.2005 0.2888 -0.10911 2010 11 15 55515 0.1993 0.2873 -0.11033 2010 11 16 55516 0.1980 0.2858 -0.11159 2010 11 17 55517 0.1967 0.2843 -0.11284 2010 11 18 55518 0.1954 0.2828 -0.11405 2010 11 19 55519 0.1940 0.2813 -0.11516 2010 11 20 55520 0.1927 0.2799 -0.11615 2010 11 21 55521 0.1913 0.2785 -0.11701 2010 11 22 55522 0.1899 0.2771 -0.11775 2010 11 23 55523 0.1885 0.2757 -0.11842 2010 11 24 55524 0.1870 0.2744 -0.11907 2010 11 25 55525 0.1855 0.2731 -0.11979 2010 11 26 55526 0.1840 0.2718 -0.12067 2010 11 27 55527 0.1825 0.2705 -0.12174 2010 11 28 55528 0.1810 0.2693 -0.12300 2010 11 29 55529 0.1795 0.2680 -0.12443 2010 11 30 55530 0.1779 0.2668 -0.12592 2010 12 1 55531 0.1763 0.2657 -0.12738 2010 12 2 55532 0.1747 0.2645 -0.12870 2010 12 3 55533 0.1731 0.2634 -0.12982 2010 12 4 55534 0.1715 0.2623 -0.13072 2010 12 5 55535 0.1698 0.2612 -0.13141 2010 12 6 55536 0.1682 0.2601 -0.13198 2010 12 7 55537 0.1665 0.2591 -0.13251 2010 12 8 55538 0.1648 0.2581 -0.13308 2010 12 9 55539 0.1631 0.2571 -0.13375 2010 12 10 55540 0.1614 0.2562 -0.13452 2010 12 11 55541 0.1597 0.2552 -0.13541 2010 12 12 55542 0.1579 0.2544 -0.13639 2010 12 13 55543 0.1562 0.2535 -0.13737 2010 12 14 55544 0.1544 0.2526 -0.13836 2010 12 15 55545 0.1526 0.2518 -0.13931 2010 12 16 55546 0.1509 0.2510 -0.14018 2010 12 17 55547 0.1491 0.2503 -0.14095 2010 12 18 55548 0.1473 0.2495 -0.14159 2010 12 19 55549 0.1455 0.2488 -0.14211 2010 12 20 55550 0.1437 0.2482 -0.14256 2010 12 21 55551 0.1418 0.2475 -0.14299 2010 12 22 55552 0.1400 0.2469 -0.14348 2010 12 23 55553 0.1382 0.2463 -0.14412 2010 12 24 55554 0.1363 0.2457 -0.14498 2010 12 25 55555 0.1345 0.2452 -0.14605 2010 12 26 55556 0.1326 0.2447 -0.14730 2010 12 27 55557 0.1308 0.2442 -0.14863 2010 12 28 55558 0.1289 0.2438 -0.14993 2010 12 29 55559 0.1270 0.2433 -0.15110 2010 12 30 55560 0.1252 0.2429 -0.15208 2010 12 31 55561 0.1233 0.2426 -0.15283 2011 1 1 55562 0.1214 0.2422 -0.15338 2011 1 2 55563 0.1196 0.2419 -0.15380 2011 1 3 55564 0.1177 0.2417 -0.15416 2011 1 4 55565 0.1158 0.2414 -0.15454 2011 1 5 55566 0.1140 0.2412 -0.15501 2011 1 6 55567 0.1121 0.2410 -0.15559 2011 1 7 55568 0.1102 0.2408 -0.15630 2011 1 8 55569 0.1083 0.2407 -0.15710 2011 1 9 55570 0.1065 0.2406 -0.15798 2011 1 10 55571 0.1046 0.2405 -0.15887 2011 1 11 55572 0.1028 0.2405 -0.15975 2011 1 12 55573 0.1009 0.2405 -0.16056 2011 1 13 55574 0.0991 0.2405 -0.16128 2011 1 14 55575 0.0972 0.2405 -0.16189 2011 1 15 55576 0.0954 0.2406 -0.16239 2011 1 16 55577 0.0935 0.2407 -0.16281 2011 1 17 55578 0.0917 0.2408 -0.16319 2011 1 18 55579 0.0899 0.2409 -0.16362 2011 1 19 55580 0.0881 0.2411 -0.16419 2011 1 20 55581 0.0863 0.2413 -0.16497 2011 1 21 55582 0.0845 0.2416 -0.16601 2011 1 22 55583 0.0827 0.2418 -0.16728 2011 1 23 55584 0.0809 0.2421 -0.16869 2011 1 24 55585 0.0792 0.2424 -0.17011 2011 1 25 55586 0.0774 0.2428 -0.17141 2011 1 26 55587 0.0757 0.2432 -0.17251 2011 1 27 55588 0.0739 0.2435 -0.17337 2011 1 28 55589 0.0722 0.2440 -0.17402 2011 1 29 55590 0.0705 0.2444 -0.17452 2011 1 30 55591 0.0688 0.2449 -0.17495 2011 1 31 55592 0.0671 0.2454 -0.17539 2011 2 1 55593 0.0654 0.2459 -0.17591 2011 2 2 55594 0.0638 0.2465 -0.17655 2011 2 3 55595 0.0621 0.2471 -0.17732 2011 2 4 55596 0.0605 0.2477 -0.17821 2011 2 5 55597 0.0589 0.2483 -0.17920 2011 2 6 55598 0.0573 0.2490 -0.18024 2011 2 7 55599 0.0557 0.2496 -0.18128 2011 2 8 55600 0.0542 0.2503 -0.18227 2011 2 9 55601 0.0526 0.2511 -0.18319 2011 2 10 55602 0.0511 0.2518 -0.18401 2011 2 11 55603 0.0496 0.2526 -0.18473 2011 2 12 55604 0.0481 0.2534 -0.18536 2011 2 13 55605 0.0466 0.2542 -0.18594 2011 2 14 55606 0.0451 0.2551 -0.18655 2011 2 15 55607 0.0437 0.2559 -0.18726 2011 2 16 55608 0.0423 0.2568 -0.18817 2011 2 17 55609 0.0409 0.2577 -0.18934 2011 2 18 55610 0.0395 0.2586 -0.19078 2011 2 19 55611 0.0381 0.2596 -0.19245 2011 2 20 55612 0.0368 0.2606 -0.19421 2011 2 21 55613 0.0355 0.2616 -0.19591 2011 2 22 55614 0.0342 0.2626 -0.19744 2011 2 23 55615 0.0329 0.2636 -0.19871 2011 2 24 55616 0.0316 0.2647 -0.19974 2011 2 25 55617 0.0304 0.2657 -0.20057 2011 2 26 55618 0.0292 0.2668 -0.20130 2011 2 27 55619 0.0280 0.2679 -0.20200 2011 2 28 55620 0.0268 0.2691 -0.20275 2011 3 1 55621 0.0257 0.2702 -0.20358 2011 3 2 55622 0.0246 0.2714 -0.20452 2011 3 3 55623 0.0235 0.2725 -0.20555 2011 3 4 55624 0.0224 0.2737 -0.20665 2011 3 5 55625 0.0214 0.2750 -0.20778 2011 3 6 55626 0.0203 0.2762 -0.20889 2011 3 7 55627 0.0194 0.2774 -0.20995 2011 3 8 55628 0.0184 0.2787 -0.21091 2011 3 9 55629 0.0174 0.2800 -0.21177 2011 3 10 55630 0.0165 0.2812 -0.21253 2011 3 11 55631 0.0156 0.2825 -0.21322 2011 3 12 55632 0.0147 0.2839 -0.21387 2011 3 13 55633 0.0139 0.2852 -0.21457 2011 3 14 55634 0.0131 0.2865 -0.21539 2011 3 15 55635 0.0123 0.2879 -0.21642 2011 3 16 55636 0.0115 0.2892 -0.21774 2011 3 17 55637 0.0108 0.2906 -0.21938 2011 3 18 55638 0.0101 0.2920 -0.22131 2011 3 19 55639 0.0094 0.2934 -0.22343 2011 3 20 55640 0.0087 0.2948 -0.22561 2011 3 21 55641 0.0081 0.2962 -0.22768 2011 3 22 55642 0.0075 0.2977 -0.22951 2011 3 23 55643 0.0069 0.2991 -0.23106 2011 3 24 55644 0.0063 0.3006 -0.23233 2011 3 25 55645 0.0058 0.3020 -0.23342 2011 3 26 55646 0.0053 0.3035 -0.23443 2011 3 27 55647 0.0048 0.3049 -0.23545 2011 3 28 55648 0.0044 0.3064 -0.23656 2011 3 29 55649 0.0040 0.3079 -0.23781 2011 3 30 55650 0.0036 0.3094 -0.23922 2011 3 31 55651 0.0032 0.3109 -0.24078 2011 4 1 55652 0.0029 0.3124 -0.24244 2011 4 2 55653 0.0026 0.3139 -0.24414 2011 4 3 55654 0.0023 0.3154 -0.24581 2011 4 4 55655 0.0020 0.3169 -0.24740 2011 4 5 55656 0.0018 0.3184 -0.24883 2011 4 6 55657 0.0016 0.3200 -0.25008 2011 4 7 55658 0.0015 0.3215 -0.25113 2011 4 8 55659 0.0013 0.3230 -0.25206 2011 4 9 55660 0.0012 0.3246 -0.25294 2011 4 10 55661 0.0011 0.3261 -0.25381 2011 4 11 55662 0.0011 0.3276 -0.25478 2011 4 12 55663 0.0010 0.3291 -0.25595 2011 4 13 55664 0.0010 0.3307 -0.25739 2011 4 14 55665 0.0010 0.3322 -0.25905 2011 4 15 55666 0.0011 0.3337 -0.26086 2011 4 16 55667 0.0012 0.3353 -0.26273 2011 4 17 55668 0.0013 0.3368 -0.26451 2011 4 18 55669 0.0014 0.3383 -0.26614 2011 4 19 55670 0.0015 0.3399 -0.26755 2011 4 20 55671 0.0017 0.3414 -0.26871 2011 4 21 55672 0.0019 0.3429 -0.26960 2011 4 22 55673 0.0022 0.3444 -0.27037 2011 4 23 55674 0.0024 0.3459 -0.27110 2011 4 24 55675 0.0027 0.3474 -0.27189 2011 4 25 55676 0.0030 0.3490 -0.27282 2011 4 26 55677 0.0034 0.3505 -0.27382 2011 4 27 55678 0.0037 0.3519 -0.27489 2011 4 28 55679 0.0041 0.3534 -0.27603 2011 4 29 55680 0.0045 0.3549 -0.27722 2011 4 30 55681 0.0049 0.3564 -0.27837 2011 5 1 55682 0.0054 0.3579 -0.27941 2011 5 2 55683 0.0059 0.3593 -0.28034 2011 5 3 55684 0.0064 0.3608 -0.28109 2011 5 4 55685 0.0069 0.3622 -0.28165 2011 5 5 55686 0.0075 0.3637 -0.28210 2011 5 6 55687 0.0081 0.3651 -0.28246 2011 5 7 55688 0.0087 0.3665 -0.28282 2011 5 8 55689 0.0093 0.3679 -0.28325 2011 5 9 55690 0.0100 0.3693 -0.28386 2011 5 10 55691 0.0106 0.3707 -0.28474 2011 5 11 55692 0.0113 0.3721 -0.28589 2011 5 12 55693 0.0120 0.3735 -0.28724 2011 5 13 55694 0.0128 0.3748 -0.28873 2011 5 14 55695 0.0135 0.3762 -0.29027 2011 5 15 55696 0.0143 0.3775 -0.29179 2011 5 16 55697 0.0151 0.3789 -0.29315 2011 5 17 55698 0.0159 0.3802 -0.29427 2011 5 18 55699 0.0168 0.3815 -0.29513 2011 5 19 55700 0.0176 0.3827 -0.29582 2011 5 20 55701 0.0185 0.3840 -0.29645 2011 5 21 55702 0.0194 0.3853 -0.29711 2011 5 22 55703 0.0203 0.3865 -0.29782 2011 5 23 55704 0.0213 0.3878 -0.29856 2011 5 24 55705 0.0222 0.3890 -0.29929 2011 5 25 55706 0.0232 0.3902 -0.30001 2011 5 26 55707 0.0242 0.3914 -0.30064 2011 5 27 55708 0.0252 0.3925 -0.30121 2011 5 28 55709 0.0262 0.3937 -0.30171 2011 5 29 55710 0.0273 0.3948 -0.30212 2011 5 30 55711 0.0283 0.3960 -0.30239 2011 5 31 55712 0.0294 0.3971 -0.30247 2011 6 1 55713 0.0305 0.3982 -0.30245 2011 6 2 55714 0.0316 0.3992 -0.30239 2011 6 3 55715 0.0327 0.4003 -0.30235 2011 6 4 55716 0.0339 0.4013 -0.30235 2011 6 5 55717 0.0350 0.4024 -0.30245 2011 6 6 55718 0.0362 0.4034 -0.30269 2011 6 7 55719 0.0374 0.4043 -0.30313 2011 6 8 55720 0.0386 0.4053 -0.30379 2011 6 9 55721 0.0398 0.4063 -0.30457 2011 6 10 55722 0.0410 0.4072 -0.30537 2011 6 11 55723 0.0422 0.4081 -0.30608 2011 6 12 55724 0.0434 0.4090 -0.30657 2011 6 13 55725 0.0447 0.4099 -0.30684 2011 6 14 55726 0.0459 0.4108 -0.30690 2011 6 15 55727 0.0472 0.4116 -0.30678 2011 6 16 55728 0.0485 0.4124 -0.30649 2011 6 17 55729 0.0498 0.4132 -0.30612 2011 6 18 55730 0.0511 0.4140 -0.30579 2011 6 19 55731 0.0524 0.4147 -0.30559 2011 6 20 55732 0.0537 0.4155 -0.30546 2011 6 21 55733 0.0550 0.4162 -0.30534 2011 6 22 55734 0.0564 0.4169 -0.30522 2011 6 23 55735 0.0577 0.4176 -0.30504 2011 6 24 55736 0.0590 0.4182 -0.30480 2011 6 25 55737 0.0604 0.4189 -0.30450 2011 6 26 55738 0.0618 0.4195 -0.30405 2011 6 27 55739 0.0631 0.4201 -0.30345 2011 6 28 55740 0.0645 0.4207 -0.30271 2011 6 29 55741 0.0659 0.4212 -0.30196 2011 6 30 55742 0.0672 0.4218 -0.30126 2011 7 1 55743 0.0686 0.4223 -0.30065 2011 7 2 55744 0.0700 0.4228 -0.30019 2011 7 3 55745 0.0714 0.4233 -0.29988 2011 7 4 55746 0.0728 0.4237 -0.29974 2011 7 5 55747 0.0742 0.4241 -0.29976 2011 7 6 55748 0.0756 0.4245 -0.29990 2011 7 7 55749 0.0770 0.4249 -0.30009 2011 7 8 55750 0.0784 0.4253 -0.30021 2011 7 9 55751 0.0798 0.4256 -0.30018 2011 7 10 55752 0.0812 0.4260 -0.29999 2011 7 11 55753 0.0826 0.4263 -0.29961 2011 7 12 55754 0.0840 0.4265 -0.29907 2011 7 13 55755 0.0854 0.4268 -0.29843 2011 7 14 55756 0.0867 0.4271 -0.29776 2011 7 15 55757 0.0881 0.4273 -0.29720 2011 7 16 55758 0.0895 0.4275 -0.29682 2011 7 17 55759 0.0909 0.4276 -0.29654 2011 7 18 55760 0.0923 0.4278 -0.29632 2011 7 19 55761 0.0937 0.4279 -0.29614 2011 7 20 55762 0.0951 0.4280 -0.29595 2011 7 21 55763 0.0964 0.4281 -0.29571 2011 7 22 55764 0.0978 0.4282 -0.29541 2011 7 23 55765 0.0992 0.4283 -0.29496 2011 7 24 55766 0.1005 0.4283 -0.29436 2011 7 25 55767 0.1019 0.4283 -0.29366 2011 7 26 55768 0.1033 0.4283 -0.29287 2011 7 27 55769 0.1046 0.4283 -0.29208 2011 7 28 55770 0.1059 0.4282 -0.29139 2011 7 29 55771 0.1073 0.4281 -0.29087 2011 7 30 55772 0.1086 0.4281 -0.29053 2011 7 31 55773 0.1099 0.4279 -0.29044 2011 8 1 55774 0.1112 0.4278 -0.29060 2011 8 2 55775 0.1125 0.4277 -0.29093 2011 8 3 55776 0.1138 0.4275 -0.29141 2011 8 4 55777 0.1151 0.4273 -0.29186 2011 8 5 55778 0.1164 0.4271 -0.29215 2011 8 6 55779 0.1176 0.4269 -0.29228 2011 8 7 55780 0.1189 0.4266 -0.29222 2011 8 8 55781 0.1201 0.4264 -0.29193 2011 8 9 55782 0.1214 0.4261 -0.29144 2011 8 10 55783 0.1226 0.4258 -0.29089 2011 8 11 55784 0.1238 0.4255 -0.29042 2011 8 12 55785 0.1250 0.4251 -0.29013 2011 8 13 55786 0.1262 0.4248 -0.28998 2011 8 14 55787 0.1274 0.4244 -0.28994 2011 8 15 55788 0.1285 0.4240 -0.28997 2011 8 16 55789 0.1297 0.4236 -0.29008 2011 8 17 55790 0.1308 0.4232 -0.29023 2011 8 18 55791 0.1319 0.4227 -0.29031 2011 8 19 55792 0.1330 0.4223 -0.29028 2011 8 20 55793 0.1341 0.4218 -0.29019 2011 8 21 55794 0.1352 0.4213 -0.28998 2011 8 22 55795 0.1363 0.4208 -0.28969 2011 8 23 55796 0.1374 0.4203 -0.28940 2011 8 24 55797 0.1384 0.4197 -0.28915 2011 8 25 55798 0.1394 0.4192 -0.28899 2011 8 26 55799 0.1404 0.4186 -0.28897 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) 55415 -73.79 0.13 -9.72 0.13 55416 -73.36 0.27 -9.82 0.14 55417 -72.99 0.27 -9.91 0.14 55418 -72.87 0.33 -9.80 0.16 55419 -73.06 0.31 -9.57 0.13 55420 -73.43 0.31 -9.39 0.13 55421 -73.84 0.31 -9.31 0.13 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55415 0.048 0.052 0.021 0.130 55416 0.063 0.107 0.027 0.140 55417 0.051 0.107 0.037 0.140 55418 0.037 0.131 0.040 0.160 55419 0.041 0.123 0.031 0.130 55420 0.056 0.123 0.045 0.130 55421 0.060 0.123 0.052 0.130 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.