********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 28 October 2010 Vol. XXIII No. 043 ______________________________________________________________________ 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 10 22 55491 0.23133 .00009 0.32062 .00009 -0.082947 0.000013 10 10 23 55492 0.23068 .00009 0.31833 .00009 -0.083957 0.000013 10 10 24 55493 0.23009 .00009 0.31645 .00009 -0.084802 0.000013 10 10 25 55494 0.22902 .00009 0.31483 .00009 -0.085502 0.000011 10 10 26 55495 0.22752 .00009 0.31290 .00009 -0.086116 0.000010 10 10 27 55496 0.22634 .00009 0.31061 .00009 -0.086659 0.000010 10 10 28 55497 0.22542 .00009 0.30836 .00009 -0.087217 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 = 0.0900 + 0.1080 cos A - 0.0703 sin A + 0.0298 cos C + 0.0377 sin C y = 0.3406 - 0.0671 cos A - 0.0918 sin A + 0.0377 cos C - 0.0298 sin C UT1-UTC = -0.1041 - 0.00078 (MJD - 55505) - (UT2-UT1) where A = 2*pi*(MJD-55497)/365.25 and C = 2*pi*(MJD-55497)/435. TAI-UTC(MJD 55498) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55497)**0.80 S t = 0.00025 (MJD-55497)**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 10 29 55498 0.2246 0.3062 -0.08791 2010 10 30 55499 0.2238 0.3042 -0.08880 2010 10 31 55500 0.2229 0.3022 -0.08994 2010 11 1 55501 0.2221 0.3003 -0.09133 2010 11 2 55502 0.2212 0.2985 -0.09294 2010 11 3 55503 0.2203 0.2966 -0.09466 2010 11 4 55504 0.2194 0.2948 -0.09634 2010 11 5 55505 0.2184 0.2930 -0.09787 2010 11 6 55506 0.2174 0.2912 -0.09915 2010 11 7 55507 0.2164 0.2895 -0.10016 2010 11 8 55508 0.2153 0.2877 -0.10094 2010 11 9 55509 0.2142 0.2860 -0.10159 2010 11 10 55510 0.2131 0.2843 -0.10219 2010 11 11 55511 0.2120 0.2826 -0.10284 2010 11 12 55512 0.2108 0.2810 -0.10360 2010 11 13 55513 0.2096 0.2793 -0.10448 2010 11 14 55514 0.2084 0.2777 -0.10548 2010 11 15 55515 0.2072 0.2761 -0.10658 2010 11 16 55516 0.2059 0.2745 -0.10774 2010 11 17 55517 0.2046 0.2730 -0.10893 2010 11 18 55518 0.2033 0.2714 -0.11010 2010 11 19 55519 0.2020 0.2699 -0.11119 2010 11 20 55520 0.2006 0.2684 -0.11217 2010 11 21 55521 0.1992 0.2669 -0.11302 2010 11 22 55522 0.1978 0.2655 -0.11373 2010 11 23 55523 0.1964 0.2640 -0.11433 2010 11 24 55524 0.1949 0.2626 -0.11491 2010 11 25 55525 0.1935 0.2613 -0.11553 2010 11 26 55526 0.1920 0.2599 -0.11629 2010 11 27 55527 0.1905 0.2586 -0.11722 2010 11 28 55528 0.1889 0.2572 -0.11833 2010 11 29 55529 0.1874 0.2560 -0.11958 2010 11 30 55530 0.1858 0.2547 -0.12089 2010 12 1 55531 0.1842 0.2535 -0.12215 2010 12 2 55532 0.1826 0.2522 -0.12327 2010 12 3 55533 0.1810 0.2511 -0.12419 2010 12 4 55534 0.1793 0.2499 -0.12487 2010 12 5 55535 0.1777 0.2488 -0.12536 2010 12 6 55536 0.1760 0.2477 -0.12572 2010 12 7 55537 0.1743 0.2466 -0.12604 2010 12 8 55538 0.1726 0.2455 -0.12640 2010 12 9 55539 0.1709 0.2445 -0.12686 2010 12 10 55540 0.1691 0.2435 -0.12743 2010 12 11 55541 0.1674 0.2425 -0.12812 2010 12 12 55542 0.1656 0.2416 -0.12890 2010 12 13 55543 0.1638 0.2407 -0.12973 2010 12 14 55544 0.1621 0.2398 -0.13057 2010 12 15 55545 0.1603 0.2389 -0.13137 2010 12 16 55546 0.1584 0.2381 -0.13211 2010 12 17 55547 0.1566 0.2373 -0.13274 2010 12 18 55548 0.1548 0.2365 -0.13325 2010 12 19 55549 0.1530 0.2357 -0.13366 2010 12 20 55550 0.1511 0.2350 -0.13398 2010 12 21 55551 0.1492 0.2343 -0.13429 2010 12 22 55552 0.1474 0.2337 -0.13467 2010 12 23 55553 0.1455 0.2330 -0.13519 2010 12 24 55554 0.1436 0.2324 -0.13591 2010 12 25 55555 0.1417 0.2319 -0.13685 2010 12 26 55556 0.1399 0.2313 -0.13797 2010 12 27 55557 0.1380 0.2308 -0.13916 2010 12 28 55558 0.1361 0.2303 -0.14032 2010 12 29 55559 0.1342 0.2299 -0.14135 2010 12 30 55560 0.1322 0.2294 -0.14219 2010 12 31 55561 0.1303 0.2291 -0.14280 2011 1 1 55562 0.1284 0.2287 -0.14321 2011 1 2 55563 0.1265 0.2284 -0.14348 2011 1 3 55564 0.1246 0.2281 -0.14370 2011 1 4 55565 0.1227 0.2278 -0.14393 2011 1 5 55566 0.1207 0.2275 -0.14424 2011 1 6 55567 0.1188 0.2273 -0.14467 2011 1 7 55568 0.1169 0.2271 -0.14522 2011 1 8 55569 0.1150 0.2270 -0.14588 2011 1 9 55570 0.1131 0.2269 -0.14660 2011 1 10 55571 0.1112 0.2268 -0.14734 2011 1 11 55572 0.1092 0.2267 -0.14806 2011 1 12 55573 0.1073 0.2267 -0.14872 2011 1 13 55574 0.1054 0.2266 -0.14927 2011 1 14 55575 0.1035 0.2267 -0.14972 2011 1 15 55576 0.1016 0.2267 -0.15006 2011 1 16 55577 0.0997 0.2268 -0.15031 2011 1 17 55578 0.0979 0.2269 -0.15054 2011 1 18 55579 0.0960 0.2271 -0.15082 2011 1 19 55580 0.0941 0.2272 -0.15125 2011 1 20 55581 0.0923 0.2274 -0.15189 2011 1 21 55582 0.0904 0.2276 -0.15280 2011 1 22 55583 0.0885 0.2279 -0.15394 2011 1 23 55584 0.0867 0.2282 -0.15523 2011 1 24 55585 0.0849 0.2285 -0.15654 2011 1 25 55586 0.0831 0.2288 -0.15774 2011 1 26 55587 0.0812 0.2292 -0.15876 2011 1 27 55588 0.0794 0.2296 -0.15954 2011 1 28 55589 0.0777 0.2300 -0.16013 2011 1 29 55590 0.0759 0.2305 -0.16057 2011 1 30 55591 0.0741 0.2310 -0.16096 2011 1 31 55592 0.0724 0.2315 -0.16136 2011 2 1 55593 0.0706 0.2320 -0.16184 2011 2 2 55594 0.0689 0.2326 -0.16244 2011 2 3 55595 0.0672 0.2331 -0.16317 2011 2 4 55596 0.0655 0.2337 -0.16403 2011 2 5 55597 0.0638 0.2344 -0.16497 2011 2 6 55598 0.0621 0.2350 -0.16595 2011 2 7 55599 0.0605 0.2357 -0.16693 2011 2 8 55600 0.0589 0.2365 -0.16788 2011 2 9 55601 0.0572 0.2372 -0.16874 2011 2 10 55602 0.0556 0.2380 -0.16951 2011 2 11 55603 0.0540 0.2387 -0.17017 2011 2 12 55604 0.0525 0.2396 -0.17075 2011 2 13 55605 0.0509 0.2404 -0.17129 2011 2 14 55606 0.0494 0.2412 -0.17179 2011 2 15 55607 0.0479 0.2421 -0.17239 2011 2 16 55608 0.0464 0.2430 -0.17320 2011 2 17 55609 0.0449 0.2440 -0.17426 2011 2 18 55610 0.0434 0.2449 -0.17561 2011 2 19 55611 0.0420 0.2459 -0.17717 2011 2 20 55612 0.0406 0.2469 -0.17883 2011 2 21 55613 0.0392 0.2479 -0.18044 2011 2 22 55614 0.0378 0.2489 -0.18186 2011 2 23 55615 0.0365 0.2500 -0.18304 2011 2 24 55616 0.0351 0.2511 -0.18397 2011 2 25 55617 0.0338 0.2522 -0.18472 2011 2 26 55618 0.0325 0.2533 -0.18537 2011 2 27 55619 0.0313 0.2544 -0.18600 2011 2 28 55620 0.0300 0.2556 -0.18669 2011 3 1 55621 0.0288 0.2567 -0.18748 2011 3 2 55622 0.0276 0.2579 -0.18839 2011 3 3 55623 0.0265 0.2591 -0.18943 2011 3 4 55624 0.0253 0.2604 -0.19056 2011 3 5 55625 0.0242 0.2616 -0.19176 2011 3 6 55626 0.0231 0.2629 -0.19298 2011 3 7 55627 0.0220 0.2642 -0.19416 2011 3 8 55628 0.0210 0.2654 -0.19527 2011 3 9 55629 0.0200 0.2668 -0.19627 2011 3 10 55630 0.0190 0.2681 -0.19717 2011 3 11 55631 0.0180 0.2694 -0.19796 2011 3 12 55632 0.0170 0.2708 -0.19869 2011 3 13 55633 0.0161 0.2721 -0.19940 2011 3 14 55634 0.0152 0.2735 -0.20017 2011 3 15 55635 0.0144 0.2749 -0.20109 2011 3 16 55636 0.0135 0.2763 -0.20224 2011 3 17 55637 0.0127 0.2777 -0.20365 2011 3 18 55638 0.0119 0.2792 -0.20533 2011 3 19 55639 0.0112 0.2806 -0.20718 2011 3 20 55640 0.0104 0.2821 -0.20906 2011 3 21 55641 0.0097 0.2835 -0.21082 2011 3 22 55642 0.0090 0.2850 -0.21237 2011 3 23 55643 0.0084 0.2865 -0.21364 2011 3 24 55644 0.0078 0.2880 -0.21469 2011 3 25 55645 0.0072 0.2895 -0.21558 2011 3 26 55646 0.0066 0.2910 -0.21642 2011 3 27 55647 0.0060 0.2925 -0.21729 2011 3 28 55648 0.0055 0.2940 -0.21824 2011 3 29 55649 0.0051 0.2956 -0.21929 2011 3 30 55650 0.0046 0.2971 -0.22045 2011 3 31 55651 0.0042 0.2986 -0.22170 2011 4 1 55652 0.0038 0.3002 -0.22301 2011 4 2 55653 0.0034 0.3017 -0.22435 2011 4 3 55654 0.0030 0.3033 -0.22565 2011 4 4 55655 0.0027 0.3049 -0.22689 2011 4 5 55656 0.0024 0.3064 -0.22803 2011 4 6 55657 0.0022 0.3080 -0.22905 2011 4 7 55658 0.0019 0.3096 -0.22996 2011 4 8 55659 0.0017 0.3112 -0.23078 2011 4 9 55660 0.0016 0.3128 -0.23157 2011 4 10 55661 0.0014 0.3143 -0.23238 2011 4 11 55662 0.0013 0.3159 -0.23328 2011 4 12 55663 0.0012 0.3175 -0.23436 2011 4 13 55664 0.0011 0.3191 -0.23566 2011 4 14 55665 0.0011 0.3207 -0.23721 2011 4 15 55666 0.0011 0.3223 -0.23895 2011 4 16 55667 0.0011 0.3239 -0.24080 2011 4 17 55668 0.0011 0.3255 -0.24261 2011 4 18 55669 0.0012 0.3270 -0.24426 2011 4 19 55670 0.0013 0.3286 -0.24565 2011 4 20 55671 0.0014 0.3302 -0.24678 2011 4 21 55672 0.0016 0.3318 -0.24771 2011 4 22 55673 0.0018 0.3333 -0.24853 2011 4 23 55674 0.0020 0.3349 -0.24934 2011 4 24 55675 0.0022 0.3365 -0.25019 2011 4 25 55676 0.0025 0.3380 -0.25112 2011 4 26 55677 0.0028 0.3396 -0.25214 2011 4 27 55678 0.0031 0.3412 -0.25322 2011 4 28 55679 0.0034 0.3427 -0.25435 2011 4 29 55680 0.0038 0.3442 -0.25547 2011 4 30 55681 0.0042 0.3458 -0.25656 2011 5 1 55682 0.0046 0.3473 -0.25757 2011 5 2 55683 0.0050 0.3488 -0.25847 2011 5 3 55684 0.0055 0.3503 -0.25924 2011 5 4 55685 0.0060 0.3518 -0.25990 2011 5 5 55686 0.0065 0.3533 -0.26048 2011 5 6 55687 0.0071 0.3548 -0.26102 2011 5 7 55688 0.0076 0.3563 -0.26161 2011 5 8 55689 0.0082 0.3578 -0.26231 2011 5 9 55690 0.0088 0.3592 -0.26320 2011 5 10 55691 0.0095 0.3607 -0.26430 2011 5 11 55692 0.0101 0.3621 -0.26563 2011 5 12 55693 0.0108 0.3636 -0.26714 2011 5 13 55694 0.0115 0.3650 -0.26874 2011 5 14 55695 0.0122 0.3664 -0.27031 2011 5 15 55696 0.0130 0.3678 -0.27173 2011 5 16 55697 0.0138 0.3691 -0.27290 2011 5 17 55698 0.0146 0.3705 -0.27378 2011 5 18 55699 0.0154 0.3719 -0.27442 2011 5 19 55700 0.0162 0.3732 -0.27491 2011 5 20 55701 0.0171 0.3745 -0.27536 2011 5 21 55702 0.0180 0.3759 -0.27587 2011 5 22 55703 0.0189 0.3772 -0.27648 2011 5 23 55704 0.0198 0.3784 -0.27720 2011 5 24 55705 0.0207 0.3797 -0.27800 2011 5 25 55706 0.0217 0.3810 -0.27886 2011 5 26 55707 0.0226 0.3822 -0.27972 2011 5 27 55708 0.0236 0.3834 -0.28055 2011 5 28 55709 0.0247 0.3847 -0.28130 2011 5 29 55710 0.0257 0.3859 -0.28193 2011 5 30 55711 0.0267 0.3870 -0.28241 2011 5 31 55712 0.0278 0.3882 -0.28272 2011 6 1 55713 0.0289 0.3893 -0.28287 2011 6 2 55714 0.0300 0.3905 -0.28292 2011 6 3 55715 0.0311 0.3916 -0.28294 2011 6 4 55716 0.0322 0.3927 -0.28300 2011 6 5 55717 0.0334 0.3937 -0.28317 2011 6 6 55718 0.0345 0.3948 -0.28347 2011 6 7 55719 0.0357 0.3958 -0.28393 2011 6 8 55720 0.0369 0.3969 -0.28452 2011 6 9 55721 0.0381 0.3979 -0.28516 2011 6 10 55722 0.0393 0.3988 -0.28581 2011 6 11 55723 0.0406 0.3998 -0.28640 2011 6 12 55724 0.0418 0.4008 -0.28689 2011 6 13 55725 0.0431 0.4017 -0.28724 2011 6 14 55726 0.0443 0.4026 -0.28734 2011 6 15 55727 0.0456 0.4035 -0.28716 2011 6 16 55728 0.0469 0.4043 -0.28681 2011 6 17 55729 0.0482 0.4052 -0.28644 2011 6 18 55730 0.0495 0.4060 -0.28607 2011 6 19 55731 0.0508 0.4068 -0.28571 2011 6 20 55732 0.0522 0.4076 -0.28543 2011 6 21 55733 0.0535 0.4084 -0.28524 2011 6 22 55734 0.0549 0.4091 -0.28512 2011 6 23 55735 0.0562 0.4098 -0.28504 2011 6 24 55736 0.0576 0.4105 -0.28491 2011 6 25 55737 0.0589 0.4112 -0.28473 2011 6 26 55738 0.0603 0.4119 -0.28444 2011 6 27 55739 0.0617 0.4125 -0.28396 2011 6 28 55740 0.0631 0.4131 -0.28332 2011 6 29 55741 0.0645 0.4137 -0.28257 2011 6 30 55742 0.0659 0.4143 -0.28186 2011 7 1 55743 0.0673 0.4149 -0.28134 2011 7 2 55744 0.0687 0.4154 -0.28098 2011 7 3 55745 0.0702 0.4159 -0.28085 2011 7 4 55746 0.0716 0.4164 -0.28101 2011 7 5 55747 0.0730 0.4168 -0.28130 2011 7 6 55748 0.0744 0.4173 -0.28167 2011 7 7 55749 0.0759 0.4177 -0.28213 2011 7 8 55750 0.0773 0.4181 -0.28253 2011 7 9 55751 0.0788 0.4185 -0.28282 2011 7 10 55752 0.0802 0.4188 -0.28291 2011 7 11 55753 0.0816 0.4192 -0.28279 2011 7 12 55754 0.0831 0.4195 -0.28256 2011 7 13 55755 0.0845 0.4198 -0.28226 2011 7 14 55756 0.0860 0.4201 -0.28195 2011 7 15 55757 0.0874 0.4203 -0.28169 2011 7 16 55758 0.0888 0.4205 -0.28158 2011 7 17 55759 0.0903 0.4207 -0.28160 2011 7 18 55760 0.0917 0.4209 -0.28173 2011 7 19 55761 0.0931 0.4211 -0.28199 2011 7 20 55762 0.0946 0.4212 -0.28230 2011 7 21 55763 0.0960 0.4213 -0.28257 2011 7 22 55764 0.0974 0.4214 -0.28278 2011 7 23 55765 0.0988 0.4215 -0.28287 2011 7 24 55766 0.1003 0.4216 -0.28281 2011 7 25 55767 0.1017 0.4216 -0.28256 2011 7 26 55768 0.1031 0.4216 -0.28219 2011 7 27 55769 0.1045 0.4216 -0.28174 2011 7 28 55770 0.1059 0.4216 -0.28128 2011 7 29 55771 0.1073 0.4215 -0.28089 2011 7 30 55772 0.1087 0.4214 -0.28067 2011 7 31 55773 0.1101 0.4213 -0.28067 2011 8 1 55774 0.1114 0.4212 -0.28093 2011 8 2 55775 0.1128 0.4211 -0.28146 2011 8 3 55776 0.1141 0.4209 -0.28216 2011 8 4 55777 0.1155 0.4208 -0.28287 2011 8 5 55778 0.1168 0.4206 -0.28346 2011 8 6 55779 0.1182 0.4204 -0.28386 2011 8 7 55780 0.1195 0.4201 -0.28408 2011 8 8 55781 0.1208 0.4199 -0.28409 2011 8 9 55782 0.1221 0.4196 -0.28397 2011 8 10 55783 0.1234 0.4193 -0.28377 2011 8 11 55784 0.1247 0.4190 -0.28353 2011 8 12 55785 0.1260 0.4187 -0.28338 2011 8 13 55786 0.1272 0.4183 -0.28337 2011 8 14 55787 0.1285 0.4179 -0.28344 2011 8 15 55788 0.1297 0.4176 -0.28361 2011 8 16 55789 0.1310 0.4172 -0.28386 2011 8 17 55790 0.1322 0.4167 -0.28414 2011 8 18 55791 0.1334 0.4163 -0.28434 2011 8 19 55792 0.1346 0.4158 -0.28443 2011 8 20 55793 0.1358 0.4154 -0.28437 2011 8 21 55794 0.1369 0.4149 -0.28416 2011 8 22 55795 0.1381 0.4144 -0.28388 2011 8 23 55796 0.1392 0.4138 -0.28359 2011 8 24 55797 0.1403 0.4133 -0.28333 2011 8 25 55798 0.1415 0.4128 -0.28309 2011 8 26 55799 0.1425 0.4122 -0.28299 2011 8 27 55800 0.1436 0.4116 -0.28308 2011 8 28 55801 0.1447 0.4110 -0.28345 2011 8 29 55802 0.1458 0.4104 -0.28411 2011 8 30 55803 0.1468 0.4097 -0.28492 2011 8 31 55804 0.1478 0.4091 -0.28577 2011 9 1 55805 0.1488 0.4084 -0.28654 2011 9 2 55806 0.1498 0.4077 -0.28717 2011 9 3 55807 0.1508 0.4071 -0.28756 2011 9 4 55808 0.1517 0.4064 -0.28773 2011 9 5 55809 0.1527 0.4056 -0.28777 2011 9 6 55810 0.1536 0.4049 -0.28774 2011 9 7 55811 0.1545 0.4042 -0.28769 2011 9 8 55812 0.1554 0.4034 -0.28774 2011 9 9 55813 0.1563 0.4026 -0.28789 2011 9 10 55814 0.1571 0.4019 -0.28817 2011 9 11 55815 0.1580 0.4011 -0.28857 2011 9 12 55816 0.1588 0.4003 -0.28908 2011 9 13 55817 0.1596 0.3994 -0.28971 2011 9 14 55818 0.1604 0.3986 -0.29036 2011 9 15 55819 0.1611 0.3978 -0.29098 2011 9 16 55820 0.1619 0.3969 -0.29152 2011 9 17 55821 0.1626 0.3961 -0.29201 2011 9 18 55822 0.1633 0.3952 -0.29252 2011 9 19 55823 0.1640 0.3943 -0.29301 2011 9 20 55824 0.1647 0.3935 -0.29350 2011 9 21 55825 0.1653 0.3926 -0.29401 2011 9 22 55826 0.1660 0.3917 -0.29462 2011 9 23 55827 0.1666 0.3908 -0.29542 2011 9 24 55828 0.1672 0.3898 -0.29646 2011 9 25 55829 0.1678 0.3889 -0.29773 2011 9 26 55830 0.1683 0.3880 -0.29917 2011 9 27 55831 0.1689 0.3870 -0.30064 2011 9 28 55832 0.1694 0.3861 -0.30203 2011 9 29 55833 0.1699 0.3851 -0.30319 2011 9 30 55834 0.1704 0.3842 -0.30411 2011 10 1 55835 0.1709 0.3832 -0.30481 2011 10 2 55836 0.1713 0.3822 -0.30536 2011 10 3 55837 0.1717 0.3813 -0.30583 2011 10 4 55838 0.1721 0.3803 -0.30625 2011 10 5 55839 0.1725 0.3793 -0.30677 2011 10 6 55840 0.1729 0.3783 -0.30744 2011 10 7 55841 0.1732 0.3773 -0.30827 2011 10 8 55842 0.1736 0.3763 -0.30918 2011 10 9 55843 0.1739 0.3753 -0.31015 2011 10 10 55844 0.1742 0.3743 -0.31110 2011 10 11 55845 0.1744 0.3733 -0.31206 2011 10 12 55846 0.1747 0.3723 -0.31299 2011 10 13 55847 0.1749 0.3713 -0.31384 2011 10 14 55848 0.1751 0.3703 -0.31460 2011 10 15 55849 0.1753 0.3693 -0.31525 2011 10 16 55850 0.1755 0.3683 -0.31578 2011 10 17 55851 0.1757 0.3673 -0.31627 2011 10 18 55852 0.1758 0.3662 -0.31680 2011 10 19 55853 0.1759 0.3652 -0.31738 2011 10 20 55854 0.1760 0.3642 -0.31802 2011 10 21 55855 0.1761 0.3632 -0.31877 2011 10 22 55856 0.1762 0.3622 -0.31970 2011 10 23 55857 0.1762 0.3612 -0.32089 2011 10 24 55858 0.1762 0.3602 -0.32222 2011 10 25 55859 0.1762 0.3591 -0.32355 2011 10 26 55860 0.1762 0.3581 -0.32477 2011 10 27 55861 0.1762 0.3571 -0.32578 2011 10 28 55862 0.1762 0.3561 -0.32657 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) 55478 -73.64 0.11 -9.11 0.34 55479 -73.55 0.11 -9.02 0.34 55480 -73.75 0.23 -8.82 0.13 55481 -73.84 0.25 -8.72 0.14 55482 -73.54 0.29 -8.79 0.13 55483 -73.06 0.29 -8.85 0.13 55484 -72.75 0.29 -8.76 0.13 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55478 0.173 0.044 -0.032 0.340 55479 0.181 0.044 -0.058 0.340 55480 0.186 0.091 -0.056 0.130 55481 0.178 0.099 -0.023 0.140 55482 0.166 0.115 -0.023 0.130 55483 0.164 0.115 -0.046 0.130 55484 0.174 0.115 -0.042 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.