********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 18 November 2010 Vol. XXIII No. 046 ______________________________________________________________________ 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. 046, on 18 November 2010, we * * have made updated systematic corrections to the IVS VLBI data that* * is being used in the solution. The effect appears to be less than* * 0.1 mas in polar motion and 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 11 12 55512 0.21277 .00010 0.27502 .00009 -0.103536 0.000007 10 11 13 55513 0.21196 .00010 0.27351 .00009 -0.104354 0.000007 10 11 14 55514 0.21104 .00010 0.27219 .00009 -0.105334 0.000010 10 11 15 55515 0.20996 .00009 0.27061 .00009 -0.106431 0.000009 10 11 16 55516 0.20888 .00009 0.26852 .00009 -0.107611 0.000009 10 11 17 55517 0.20793 .00009 0.26602 .00009 -0.108789 0.000009 10 11 18 55518 0.20713 .00009 0.26349 .00010 -0.109905 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 = 0.0951 + 0.0782 cos A - 0.1006 sin A + 0.0402 cos C + 0.0234 sin C y = 0.3330 - 0.0926 cos A - 0.0635 sin A + 0.0234 cos C - 0.0402 sin C UT1-UTC = -0.1165 - 0.00078 (MJD - 55526) - (UT2-UT1) where A = 2*pi*(MJD-55518)/365.25 and C = 2*pi*(MJD-55518)/435. TAI-UTC(MJD 55519) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55518)**0.80 S t = 0.00025 (MJD-55518)**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 11 19 55519 0.2062 0.2614 -0.11097 2010 11 20 55520 0.2053 0.2594 -0.11191 2010 11 21 55521 0.2043 0.2576 -0.11267 2010 11 22 55522 0.2030 0.2560 -0.11329 2010 11 23 55523 0.2017 0.2544 -0.11380 2010 11 24 55524 0.2003 0.2528 -0.11429 2010 11 25 55525 0.1989 0.2512 -0.11485 2010 11 26 55526 0.1974 0.2497 -0.11557 2010 11 27 55527 0.1959 0.2481 -0.11649 2010 11 28 55528 0.1944 0.2467 -0.11761 2010 11 29 55529 0.1929 0.2453 -0.11893 2010 11 30 55530 0.1913 0.2439 -0.12036 2010 12 1 55531 0.1897 0.2425 -0.12177 2010 12 2 55532 0.1880 0.2412 -0.12305 2010 12 3 55533 0.1863 0.2399 -0.12411 2010 12 4 55534 0.1846 0.2387 -0.12491 2010 12 5 55535 0.1829 0.2374 -0.12551 2010 12 6 55536 0.1811 0.2362 -0.12600 2010 12 7 55537 0.1794 0.2350 -0.12647 2010 12 8 55538 0.1776 0.2339 -0.12698 2010 12 9 55539 0.1758 0.2328 -0.12759 2010 12 10 55540 0.1739 0.2317 -0.12829 2010 12 11 55541 0.1721 0.2306 -0.12908 2010 12 12 55542 0.1702 0.2296 -0.12994 2010 12 13 55543 0.1684 0.2286 -0.13085 2010 12 14 55544 0.1665 0.2276 -0.13176 2010 12 15 55545 0.1646 0.2267 -0.13264 2010 12 16 55546 0.1627 0.2257 -0.13346 2010 12 17 55547 0.1607 0.2249 -0.13417 2010 12 18 55548 0.1588 0.2240 -0.13477 2010 12 19 55549 0.1569 0.2232 -0.13527 2010 12 20 55550 0.1549 0.2224 -0.13570 2010 12 21 55551 0.1529 0.2216 -0.13612 2010 12 22 55552 0.1510 0.2209 -0.13661 2010 12 23 55553 0.1490 0.2202 -0.13725 2010 12 24 55554 0.1470 0.2195 -0.13807 2010 12 25 55555 0.1450 0.2189 -0.13909 2010 12 26 55556 0.1430 0.2183 -0.14027 2010 12 27 55557 0.1410 0.2177 -0.14151 2010 12 28 55558 0.1390 0.2172 -0.14270 2010 12 29 55559 0.1369 0.2166 -0.14374 2010 12 30 55560 0.1349 0.2162 -0.14457 2010 12 31 55561 0.1329 0.2157 -0.14516 2011 1 1 55562 0.1309 0.2153 -0.14554 2011 1 2 55563 0.1288 0.2149 -0.14577 2011 1 3 55564 0.1268 0.2146 -0.14595 2011 1 4 55565 0.1248 0.2142 -0.14614 2011 1 5 55566 0.1227 0.2139 -0.14642 2011 1 6 55567 0.1207 0.2137 -0.14681 2011 1 7 55568 0.1186 0.2135 -0.14732 2011 1 8 55569 0.1166 0.2133 -0.14794 2011 1 9 55570 0.1146 0.2131 -0.14863 2011 1 10 55571 0.1125 0.2130 -0.14935 2011 1 11 55572 0.1105 0.2129 -0.15006 2011 1 12 55573 0.1085 0.2128 -0.15070 2011 1 13 55574 0.1065 0.2127 -0.15126 2011 1 14 55575 0.1044 0.2127 -0.15170 2011 1 15 55576 0.1024 0.2128 -0.15204 2011 1 16 55577 0.1004 0.2128 -0.15230 2011 1 17 55578 0.0984 0.2129 -0.15253 2011 1 18 55579 0.0964 0.2130 -0.15282 2011 1 19 55580 0.0944 0.2132 -0.15324 2011 1 20 55581 0.0924 0.2134 -0.15389 2011 1 21 55582 0.0904 0.2136 -0.15479 2011 1 22 55583 0.0885 0.2138 -0.15592 2011 1 23 55584 0.0865 0.2141 -0.15719 2011 1 24 55585 0.0846 0.2144 -0.15847 2011 1 25 55586 0.0826 0.2147 -0.15964 2011 1 26 55587 0.0807 0.2151 -0.16059 2011 1 27 55588 0.0788 0.2155 -0.16131 2011 1 28 55589 0.0768 0.2159 -0.16181 2011 1 29 55590 0.0749 0.2163 -0.16217 2011 1 30 55591 0.0731 0.2168 -0.16245 2011 1 31 55592 0.0712 0.2173 -0.16275 2011 2 1 55593 0.0693 0.2178 -0.16312 2011 2 2 55594 0.0675 0.2184 -0.16360 2011 2 3 55595 0.0656 0.2190 -0.16422 2011 2 4 55596 0.0638 0.2196 -0.16495 2011 2 5 55597 0.0620 0.2203 -0.16577 2011 2 6 55598 0.0602 0.2210 -0.16664 2011 2 7 55599 0.0584 0.2217 -0.16751 2011 2 8 55600 0.0567 0.2224 -0.16834 2011 2 9 55601 0.0549 0.2231 -0.16908 2011 2 10 55602 0.0532 0.2239 -0.16972 2011 2 11 55603 0.0515 0.2247 -0.17026 2011 2 12 55604 0.0498 0.2256 -0.17070 2011 2 13 55605 0.0482 0.2264 -0.17110 2011 2 14 55606 0.0465 0.2273 -0.17151 2011 2 15 55607 0.0449 0.2282 -0.17203 2011 2 16 55608 0.0433 0.2292 -0.17275 2011 2 17 55609 0.0417 0.2301 -0.17374 2011 2 18 55610 0.0401 0.2311 -0.17501 2011 2 19 55611 0.0385 0.2321 -0.17650 2011 2 20 55612 0.0370 0.2332 -0.17809 2011 2 21 55613 0.0355 0.2342 -0.17963 2011 2 22 55614 0.0340 0.2353 -0.18100 2011 2 23 55615 0.0325 0.2364 -0.18212 2011 2 24 55616 0.0311 0.2375 -0.18301 2011 2 25 55617 0.0297 0.2387 -0.18372 2011 2 26 55618 0.0283 0.2398 -0.18434 2011 2 27 55619 0.0269 0.2410 -0.18496 2011 2 28 55620 0.0255 0.2422 -0.18564 2011 3 1 55621 0.0242 0.2435 -0.18643 2011 3 2 55622 0.0229 0.2447 -0.18736 2011 3 3 55623 0.0216 0.2460 -0.18841 2011 3 4 55624 0.0203 0.2473 -0.18957 2011 3 5 55625 0.0191 0.2486 -0.19080 2011 3 6 55626 0.0179 0.2499 -0.19204 2011 3 7 55627 0.0167 0.2513 -0.19320 2011 3 8 55628 0.0156 0.2526 -0.19429 2011 3 9 55629 0.0144 0.2540 -0.19528 2011 3 10 55630 0.0133 0.2554 -0.19617 2011 3 11 55631 0.0123 0.2568 -0.19695 2011 3 12 55632 0.0112 0.2582 -0.19767 2011 3 13 55633 0.0102 0.2597 -0.19837 2011 3 14 55634 0.0092 0.2611 -0.19914 2011 3 15 55635 0.0082 0.2626 -0.20005 2011 3 16 55636 0.0073 0.2641 -0.20119 2011 3 17 55637 0.0064 0.2656 -0.20261 2011 3 18 55638 0.0055 0.2671 -0.20428 2011 3 19 55639 0.0046 0.2686 -0.20614 2011 3 20 55640 0.0038 0.2702 -0.20802 2011 3 21 55641 0.0030 0.2717 -0.20979 2011 3 22 55642 0.0022 0.2733 -0.21134 2011 3 23 55643 0.0015 0.2749 -0.21263 2011 3 24 55644 0.0007 0.2764 -0.21368 2011 3 25 55645 0.0001 0.2780 -0.21458 2011 3 26 55646 -0.0006 0.2796 -0.21543 2011 3 27 55647 -0.0012 0.2812 -0.21630 2011 3 28 55648 -0.0018 0.2829 -0.21725 2011 3 29 55649 -0.0024 0.2845 -0.21830 2011 3 30 55650 -0.0030 0.2861 -0.21946 2011 3 31 55651 -0.0035 0.2878 -0.22071 2011 4 1 55652 -0.0040 0.2894 -0.22202 2011 4 2 55653 -0.0044 0.2911 -0.22335 2011 4 3 55654 -0.0048 0.2928 -0.22464 2011 4 4 55655 -0.0052 0.2944 -0.22587 2011 4 5 55656 -0.0056 0.2961 -0.22700 2011 4 6 55657 -0.0060 0.2978 -0.22800 2011 4 7 55658 -0.0063 0.2995 -0.22890 2011 4 8 55659 -0.0065 0.3011 -0.22971 2011 4 9 55660 -0.0068 0.3028 -0.23048 2011 4 10 55661 -0.0070 0.3045 -0.23127 2011 4 11 55662 -0.0072 0.3062 -0.23216 2011 4 12 55663 -0.0074 0.3079 -0.23321 2011 4 13 55664 -0.0075 0.3096 -0.23449 2011 4 14 55665 -0.0076 0.3113 -0.23600 2011 4 15 55666 -0.0077 0.3130 -0.23772 2011 4 16 55667 -0.0077 0.3147 -0.23954 2011 4 17 55668 -0.0078 0.3164 -0.24132 2011 4 18 55669 -0.0078 0.3181 -0.24293 2011 4 19 55670 -0.0077 0.3198 -0.24429 2011 4 20 55671 -0.0077 0.3215 -0.24539 2011 4 21 55672 -0.0076 0.3232 -0.24629 2011 4 22 55673 -0.0074 0.3249 -0.24707 2011 4 23 55674 -0.0073 0.3266 -0.24784 2011 4 24 55675 -0.0071 0.3283 -0.24866 2011 4 25 55676 -0.0069 0.3300 -0.24955 2011 4 26 55677 -0.0067 0.3317 -0.25054 2011 4 27 55678 -0.0064 0.3333 -0.25159 2011 4 28 55679 -0.0061 0.3350 -0.25269 2011 4 29 55680 -0.0058 0.3367 -0.25380 2011 4 30 55681 -0.0054 0.3383 -0.25487 2011 5 1 55682 -0.0051 0.3400 -0.25587 2011 5 2 55683 -0.0047 0.3416 -0.25675 2011 5 3 55684 -0.0042 0.3433 -0.25751 2011 5 4 55685 -0.0038 0.3449 -0.25814 2011 5 5 55686 -0.0033 0.3465 -0.25867 2011 5 6 55687 -0.0028 0.3481 -0.25913 2011 5 7 55688 -0.0023 0.3497 -0.25958 2011 5 8 55689 -0.0017 0.3513 -0.26009 2011 5 9 55690 -0.0011 0.3529 -0.26073 2011 5 10 55691 -0.0005 0.3545 -0.26155 2011 5 11 55692 0.0001 0.3561 -0.26257 2011 5 12 55693 0.0008 0.3576 -0.26376 2011 5 13 55694 0.0014 0.3592 -0.26507 2011 5 14 55695 0.0021 0.3607 -0.26639 2011 5 15 55696 0.0029 0.3622 -0.26759 2011 5 16 55697 0.0036 0.3637 -0.26858 2011 5 17 55698 0.0044 0.3652 -0.26932 2011 5 18 55699 0.0052 0.3667 -0.26983 2011 5 19 55700 0.0060 0.3682 -0.27018 2011 5 20 55701 0.0069 0.3697 -0.27047 2011 5 21 55702 0.0077 0.3711 -0.27077 2011 5 22 55703 0.0086 0.3725 -0.27113 2011 5 23 55704 0.0095 0.3739 -0.27156 2011 5 24 55705 0.0105 0.3754 -0.27204 2011 5 25 55706 0.0114 0.3767 -0.27255 2011 5 26 55707 0.0124 0.3781 -0.27306 2011 5 27 55708 0.0134 0.3795 -0.27353 2011 5 28 55709 0.0144 0.3808 -0.27394 2011 5 29 55710 0.0154 0.3821 -0.27426 2011 5 30 55711 0.0165 0.3834 -0.27448 2011 5 31 55712 0.0175 0.3847 -0.27463 2011 6 1 55713 0.0186 0.3860 -0.27471 2011 6 2 55714 0.0197 0.3872 -0.27478 2011 6 3 55715 0.0208 0.3885 -0.27490 2011 6 4 55716 0.0220 0.3897 -0.27511 2011 6 5 55717 0.0231 0.3909 -0.27550 2011 6 6 55718 0.0243 0.3921 -0.27608 2011 6 7 55719 0.0255 0.3933 -0.27688 2011 6 8 55720 0.0267 0.3944 -0.27786 2011 6 9 55721 0.0279 0.3955 -0.27894 2011 6 10 55722 0.0292 0.3966 -0.28002 2011 6 11 55723 0.0304 0.3977 -0.28099 2011 6 12 55724 0.0317 0.3988 -0.28175 2011 6 13 55725 0.0330 0.3998 -0.28224 2011 6 14 55726 0.0342 0.4009 -0.28246 2011 6 15 55727 0.0356 0.4019 -0.28247 2011 6 16 55728 0.0369 0.4029 -0.28233 2011 6 17 55729 0.0382 0.4038 -0.28214 2011 6 18 55730 0.0395 0.4048 -0.28194 2011 6 19 55731 0.0409 0.4057 -0.28180 2011 6 20 55732 0.0423 0.4066 -0.28173 2011 6 21 55733 0.0436 0.4075 -0.28175 2011 6 22 55734 0.0450 0.4083 -0.28187 2011 6 23 55735 0.0464 0.4092 -0.28204 2011 6 24 55736 0.0478 0.4100 -0.28222 2011 6 25 55737 0.0492 0.4108 -0.28238 2011 6 26 55738 0.0507 0.4116 -0.28247 2011 6 27 55739 0.0521 0.4123 -0.28244 2011 6 28 55740 0.0535 0.4130 -0.28227 2011 6 29 55741 0.0550 0.4137 -0.28195 2011 6 30 55742 0.0564 0.4144 -0.28159 2011 7 1 55743 0.0579 0.4151 -0.28127 2011 7 2 55744 0.0594 0.4157 -0.28110 2011 7 3 55745 0.0608 0.4163 -0.28112 2011 7 4 55746 0.0623 0.4169 -0.28131 2011 7 5 55747 0.0638 0.4175 -0.28171 2011 7 6 55748 0.0653 0.4180 -0.28226 2011 7 7 55749 0.0668 0.4186 -0.28285 2011 7 8 55750 0.0683 0.4191 -0.28335 2011 7 9 55751 0.0698 0.4195 -0.28371 2011 7 10 55752 0.0713 0.4200 -0.28384 2011 7 11 55753 0.0728 0.4204 -0.28373 2011 7 12 55754 0.0743 0.4208 -0.28339 2011 7 13 55755 0.0758 0.4212 -0.28295 2011 7 14 55756 0.0773 0.4216 -0.28248 2011 7 15 55757 0.0788 0.4219 -0.28208 2011 7 16 55758 0.0803 0.4223 -0.28182 2011 7 17 55759 0.0818 0.4226 -0.28165 2011 7 18 55760 0.0833 0.4228 -0.28156 2011 7 19 55761 0.0848 0.4231 -0.28151 2011 7 20 55762 0.0863 0.4233 -0.28141 2011 7 21 55763 0.0878 0.4235 -0.28122 2011 7 22 55764 0.0893 0.4237 -0.28096 2011 7 23 55765 0.0908 0.4238 -0.28063 2011 7 24 55766 0.0923 0.4240 -0.28024 2011 7 25 55767 0.0938 0.4241 -0.27982 2011 7 26 55768 0.0953 0.4242 -0.27928 2011 7 27 55769 0.0968 0.4242 -0.27860 2011 7 28 55770 0.0983 0.4243 -0.27784 2011 7 29 55771 0.0998 0.4243 -0.27716 2011 7 30 55772 0.1012 0.4243 -0.27659 2011 7 31 55773 0.1027 0.4243 -0.27616 2011 8 1 55774 0.1042 0.4242 -0.27594 2011 8 2 55775 0.1056 0.4242 -0.27594 2011 8 3 55776 0.1071 0.4241 -0.27607 2011 8 4 55777 0.1085 0.4240 -0.27621 2011 8 5 55778 0.1100 0.4239 -0.27625 2011 8 6 55779 0.1114 0.4237 -0.27612 2011 8 7 55780 0.1128 0.4235 -0.27579 2011 8 8 55781 0.1142 0.4233 -0.27524 2011 8 9 55782 0.1156 0.4231 -0.27456 2011 8 10 55783 0.1170 0.4229 -0.27385 2011 8 11 55784 0.1184 0.4226 -0.27326 2011 8 12 55785 0.1198 0.4224 -0.27295 2011 8 13 55786 0.1211 0.4221 -0.27282 2011 8 14 55787 0.1225 0.4217 -0.27287 2011 8 15 55788 0.1238 0.4214 -0.27311 2011 8 16 55789 0.1251 0.4211 -0.27333 2011 8 17 55790 0.1265 0.4207 -0.27349 2011 8 18 55791 0.1278 0.4203 -0.27367 2011 8 19 55792 0.1291 0.4199 -0.27377 2011 8 20 55793 0.1304 0.4194 -0.27382 2011 8 21 55794 0.1316 0.4190 -0.27377 2011 8 22 55795 0.1329 0.4185 -0.27364 2011 8 23 55796 0.1341 0.4180 -0.27352 2011 8 24 55797 0.1354 0.4175 -0.27342 2011 8 25 55798 0.1366 0.4170 -0.27340 2011 8 26 55799 0.1378 0.4165 -0.27351 2011 8 27 55800 0.1390 0.4159 -0.27391 2011 8 28 55801 0.1402 0.4153 -0.27456 2011 8 29 55802 0.1413 0.4147 -0.27547 2011 8 30 55803 0.1425 0.4141 -0.27661 2011 8 31 55804 0.1436 0.4135 -0.27784 2011 9 1 55805 0.1447 0.4129 -0.27897 2011 9 2 55806 0.1458 0.4122 -0.27992 2011 9 3 55807 0.1469 0.4115 -0.28062 2011 9 4 55808 0.1480 0.4108 -0.28111 2011 9 5 55809 0.1490 0.4101 -0.28139 2011 9 6 55810 0.1501 0.4094 -0.28161 2011 9 7 55811 0.1511 0.4087 -0.28182 2011 9 8 55812 0.1521 0.4079 -0.28210 2011 9 9 55813 0.1531 0.4072 -0.28248 2011 9 10 55814 0.1541 0.4064 -0.28297 2011 9 11 55815 0.1550 0.4056 -0.28357 2011 9 12 55816 0.1560 0.4048 -0.28425 2011 9 13 55817 0.1569 0.4040 -0.28504 2011 9 14 55818 0.1578 0.4032 -0.28588 2011 9 15 55819 0.1587 0.4023 -0.28670 2011 9 16 55820 0.1595 0.4015 -0.28744 2011 9 17 55821 0.1604 0.4006 -0.28810 2011 9 18 55822 0.1612 0.3998 -0.28870 2011 9 19 55823 0.1620 0.3989 -0.28921 2011 9 20 55824 0.1628 0.3980 -0.28967 2011 9 21 55825 0.1636 0.3971 -0.29012 2011 9 22 55826 0.1643 0.3962 -0.29058 2011 9 23 55827 0.1651 0.3952 -0.29121 2011 9 24 55828 0.1658 0.3943 -0.29209 2011 9 25 55829 0.1665 0.3934 -0.29319 2011 9 26 55830 0.1672 0.3924 -0.29451 2011 9 27 55831 0.1678 0.3914 -0.29598 2011 9 28 55832 0.1685 0.3905 -0.29747 2011 9 29 55833 0.1691 0.3895 -0.29880 2011 9 30 55834 0.1697 0.3885 -0.29987 2011 10 1 55835 0.1703 0.3875 -0.30067 2011 10 2 55836 0.1708 0.3865 -0.30125 2011 10 3 55837 0.1714 0.3855 -0.30176 2011 10 4 55838 0.1719 0.3845 -0.30232 2011 10 5 55839 0.1724 0.3835 -0.30298 2011 10 6 55840 0.1729 0.3825 -0.30368 2011 10 7 55841 0.1734 0.3814 -0.30446 2011 10 8 55842 0.1738 0.3804 -0.30532 2011 10 9 55843 0.1742 0.3794 -0.30625 2011 10 10 55844 0.1746 0.3783 -0.30724 2011 10 11 55845 0.1750 0.3773 -0.30820 2011 10 12 55846 0.1754 0.3762 -0.30909 2011 10 13 55847 0.1758 0.3752 -0.30989 2011 10 14 55848 0.1761 0.3741 -0.31065 2011 10 15 55849 0.1764 0.3730 -0.31129 2011 10 16 55850 0.1767 0.3720 -0.31183 2011 10 17 55851 0.1769 0.3709 -0.31234 2011 10 18 55852 0.1772 0.3698 -0.31282 2011 10 19 55853 0.1774 0.3688 -0.31332 2011 10 20 55854 0.1776 0.3677 -0.31395 2011 10 21 55855 0.1778 0.3666 -0.31476 2011 10 22 55856 0.1780 0.3655 -0.31580 2011 10 23 55857 0.1782 0.3645 -0.31708 2011 10 24 55858 0.1783 0.3634 -0.31855 2011 10 25 55859 0.1784 0.3623 -0.32018 2011 10 26 55860 0.1785 0.3612 -0.32179 2011 10 27 55861 0.1786 0.3602 -0.32326 2011 10 28 55862 0.1787 0.3591 -0.32451 2011 10 29 55863 0.1787 0.3580 -0.32561 2011 10 30 55864 0.1787 0.3569 -0.32669 2011 10 31 55865 0.1787 0.3559 -0.32777 2011 11 1 55866 0.1787 0.3548 -0.32891 2011 11 2 55867 0.1787 0.3537 -0.33009 2011 11 3 55868 0.1787 0.3527 -0.33136 2011 11 4 55869 0.1786 0.3516 -0.33269 2011 11 5 55870 0.1785 0.3506 -0.33407 2011 11 6 55871 0.1784 0.3495 -0.33544 2011 11 7 55872 0.1783 0.3484 -0.33671 2011 11 8 55873 0.1782 0.3474 -0.33783 2011 11 9 55874 0.1780 0.3464 -0.33879 2011 11 10 55875 0.1778 0.3453 -0.33954 2011 11 11 55876 0.1777 0.3443 -0.34015 2011 11 12 55877 0.1775 0.3433 -0.34068 2011 11 13 55878 0.1772 0.3422 -0.34118 2011 11 14 55879 0.1770 0.3412 -0.34166 2011 11 15 55880 0.1768 0.3402 -0.34214 2011 11 16 55881 0.1765 0.3392 -0.34274 2011 11 17 55882 0.1762 0.3382 -0.34353 2011 11 18 55883 0.1759 0.3372 -0.34456 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) 55499 -70.93 0.31 -8.58 0.34 55500 -70.61 0.31 -8.63 0.34 55501 -70.39 0.23 -8.52 0.34 55502 -70.39 0.21 -8.24 0.34 55503 -70.58 0.20 -7.93 0.34 55504 -70.71 0.20 -7.77 0.34 55505 -70.56 0.20 -7.85 0.34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55499 0.276 0.123 -0.038 0.340 55500 0.284 0.123 -0.021 0.340 55501 0.288 0.091 -0.001 0.340 55502 0.294 0.084 0.017 0.340 55503 0.295 0.080 0.015 0.340 55504 0.293 0.080 0.020 0.340 55505 0.294 0.080 0.024 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.