********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 9 December 2010 Vol. XXIII No. 049 ______________________________________________________________________ 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 = -0.2 seconds beginning 6 January 2011 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 12 3 55533 0.19101 .00009 0.23685 .00009 -0.123663 0.000014 10 12 4 55534 0.18995 .00009 0.23540 .00009 -0.124416 0.000012 10 12 5 55535 0.18831 .00009 0.23396 .00009 -0.124946 0.000012 10 12 6 55536 0.18643 .00009 0.23236 .00009 -0.125354 0.000011 10 12 7 55537 0.18490 .00009 0.23082 .00009 -0.125776 0.000011 10 12 8 55538 0.18382 .00009 0.22947 .00009 -0.126252 0.000012 10 12 9 55539 0.18304 .00010 0.22840 .00009 -0.126795 0.000009 _______________________________________________________________________ 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 = 0.0994 + 0.0449 cos A - 0.1133 sin A + 0.0440 cos C - 0.0001 sin C y = 0.3294 - 0.1029 cos A - 0.0329 sin A - 0.0001 cos C - 0.0440 sin C UT1-UTC = -0.1256 - 0.00077 (MJD - 55547) - (UT2-UT1) where A = 2*pi*(MJD-55539)/365.25 and C = 2*pi*(MJD-55539)/435. TAI-UTC(MJD 55540) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55539)**0.80 S t = 0.00025 (MJD-55539)**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 12 10 55540 0.1816 0.2275 -0.12744 2010 12 11 55541 0.1804 0.2266 -0.12814 2010 12 12 55542 0.1790 0.2258 -0.12885 2010 12 13 55543 0.1774 0.2249 -0.12955 2010 12 14 55544 0.1756 0.2239 -0.13023 2010 12 15 55545 0.1738 0.2228 -0.13090 2010 12 16 55546 0.1721 0.2218 -0.13149 2010 12 17 55547 0.1703 0.2208 -0.13198 2010 12 18 55548 0.1685 0.2198 -0.13234 2010 12 19 55549 0.1667 0.2190 -0.13257 2010 12 20 55550 0.1649 0.2181 -0.13273 2010 12 21 55551 0.1630 0.2173 -0.13291 2010 12 22 55552 0.1610 0.2165 -0.13321 2010 12 23 55553 0.1591 0.2157 -0.13368 2010 12 24 55554 0.1571 0.2149 -0.13436 2010 12 25 55555 0.1551 0.2141 -0.13526 2010 12 26 55556 0.1531 0.2134 -0.13635 2010 12 27 55557 0.1511 0.2127 -0.13753 2010 12 28 55558 0.1491 0.2120 -0.13869 2010 12 29 55559 0.1471 0.2114 -0.13970 2010 12 30 55560 0.1450 0.2108 -0.14052 2010 12 31 55561 0.1430 0.2102 -0.14112 2011 1 1 55562 0.1409 0.2096 -0.14153 2011 1 2 55563 0.1389 0.2091 -0.14181 2011 1 3 55564 0.1368 0.2086 -0.14204 2011 1 4 55565 0.1347 0.2081 -0.14229 2011 1 5 55566 0.1327 0.2076 -0.14262 2011 1 6 55567 0.1306 0.2072 -0.14307 2011 1 7 55568 0.1285 0.2068 -0.14366 2011 1 8 55569 0.1265 0.2065 -0.14436 2011 1 9 55570 0.1244 0.2062 -0.14514 2011 1 10 55571 0.1223 0.2059 -0.14594 2011 1 11 55572 0.1202 0.2056 -0.14672 2011 1 12 55573 0.1182 0.2054 -0.14742 2011 1 13 55574 0.1161 0.2052 -0.14803 2011 1 14 55575 0.1140 0.2051 -0.14852 2011 1 15 55576 0.1120 0.2049 -0.14891 2011 1 16 55577 0.1099 0.2048 -0.14922 2011 1 17 55578 0.1078 0.2048 -0.14951 2011 1 18 55579 0.1058 0.2047 -0.14985 2011 1 19 55580 0.1037 0.2047 -0.15034 2011 1 20 55581 0.1017 0.2048 -0.15105 2011 1 21 55582 0.0997 0.2048 -0.15203 2011 1 22 55583 0.0976 0.2049 -0.15325 2011 1 23 55584 0.0956 0.2050 -0.15461 2011 1 24 55585 0.0936 0.2052 -0.15597 2011 1 25 55586 0.0916 0.2054 -0.15720 2011 1 26 55587 0.0896 0.2056 -0.15821 2011 1 27 55588 0.0876 0.2059 -0.15897 2011 1 28 55589 0.0856 0.2061 -0.15951 2011 1 29 55590 0.0836 0.2065 -0.15989 2011 1 30 55591 0.0817 0.2068 -0.16018 2011 1 31 55592 0.0797 0.2072 -0.16047 2011 2 1 55593 0.0778 0.2076 -0.16082 2011 2 2 55594 0.0758 0.2080 -0.16128 2011 2 3 55595 0.0739 0.2085 -0.16187 2011 2 4 55596 0.0720 0.2090 -0.16257 2011 2 5 55597 0.0701 0.2095 -0.16337 2011 2 6 55598 0.0682 0.2100 -0.16421 2011 2 7 55599 0.0664 0.2106 -0.16505 2011 2 8 55600 0.0645 0.2112 -0.16585 2011 2 9 55601 0.0627 0.2119 -0.16657 2011 2 10 55602 0.0609 0.2125 -0.16720 2011 2 11 55603 0.0591 0.2132 -0.16772 2011 2 12 55604 0.0573 0.2140 -0.16815 2011 2 13 55605 0.0555 0.2147 -0.16855 2011 2 14 55606 0.0538 0.2155 -0.16896 2011 2 15 55607 0.0521 0.2163 -0.16949 2011 2 16 55608 0.0503 0.2171 -0.17021 2011 2 17 55609 0.0486 0.2180 -0.17120 2011 2 18 55610 0.0470 0.2188 -0.17247 2011 2 19 55611 0.0453 0.2198 -0.17396 2011 2 20 55612 0.0437 0.2207 -0.17555 2011 2 21 55613 0.0420 0.2216 -0.17710 2011 2 22 55614 0.0404 0.2226 -0.17846 2011 2 23 55615 0.0389 0.2236 -0.17957 2011 2 24 55616 0.0373 0.2247 -0.18044 2011 2 25 55617 0.0358 0.2257 -0.18112 2011 2 26 55618 0.0343 0.2268 -0.18169 2011 2 27 55619 0.0328 0.2279 -0.18225 2011 2 28 55620 0.0313 0.2290 -0.18287 2011 3 1 55621 0.0299 0.2301 -0.18358 2011 3 2 55622 0.0284 0.2313 -0.18442 2011 3 3 55623 0.0270 0.2325 -0.18538 2011 3 4 55624 0.0256 0.2337 -0.18645 2011 3 5 55625 0.0243 0.2349 -0.18758 2011 3 6 55626 0.0230 0.2362 -0.18871 2011 3 7 55627 0.0217 0.2375 -0.18982 2011 3 8 55628 0.0204 0.2387 -0.19085 2011 3 9 55629 0.0191 0.2401 -0.19178 2011 3 10 55630 0.0179 0.2414 -0.19260 2011 3 11 55631 0.0167 0.2427 -0.19332 2011 3 12 55632 0.0155 0.2441 -0.19398 2011 3 13 55633 0.0144 0.2455 -0.19463 2011 3 14 55634 0.0132 0.2469 -0.19533 2011 3 15 55635 0.0121 0.2483 -0.19618 2011 3 16 55636 0.0111 0.2497 -0.19726 2011 3 17 55637 0.0100 0.2511 -0.19861 2011 3 18 55638 0.0090 0.2526 -0.20022 2011 3 19 55639 0.0080 0.2541 -0.20200 2011 3 20 55640 0.0070 0.2556 -0.20382 2011 3 21 55641 0.0061 0.2571 -0.20552 2011 3 22 55642 0.0052 0.2586 -0.20701 2011 3 23 55643 0.0043 0.2601 -0.20824 2011 3 24 55644 0.0034 0.2617 -0.20923 2011 3 25 55645 0.0026 0.2632 -0.21008 2011 3 26 55646 0.0018 0.2648 -0.21088 2011 3 27 55647 0.0010 0.2664 -0.21172 2011 3 28 55648 0.0003 0.2680 -0.21260 2011 3 29 55649 -0.0004 0.2696 -0.21360 2011 3 30 55650 -0.0011 0.2712 -0.21470 2011 3 31 55651 -0.0018 0.2728 -0.21590 2011 4 1 55652 -0.0024 0.2744 -0.21716 2011 4 2 55653 -0.0030 0.2760 -0.21844 2011 4 3 55654 -0.0036 0.2777 -0.21970 2011 4 4 55655 -0.0041 0.2793 -0.22088 2011 4 5 55656 -0.0046 0.2810 -0.22196 2011 4 6 55657 -0.0051 0.2827 -0.22293 2011 4 7 55658 -0.0056 0.2843 -0.22379 2011 4 8 55659 -0.0060 0.2860 -0.22456 2011 4 9 55660 -0.0064 0.2877 -0.22530 2011 4 10 55661 -0.0068 0.2894 -0.22605 2011 4 11 55662 -0.0071 0.2911 -0.22690 2011 4 12 55663 -0.0074 0.2928 -0.22793 2011 4 13 55664 -0.0077 0.2945 -0.22917 2011 4 14 55665 -0.0079 0.2962 -0.23067 2011 4 15 55666 -0.0082 0.2979 -0.23236 2011 4 16 55667 -0.0084 0.2996 -0.23416 2011 4 17 55668 -0.0085 0.3013 -0.23591 2011 4 18 55669 -0.0087 0.3030 -0.23750 2011 4 19 55670 -0.0088 0.3047 -0.23885 2011 4 20 55671 -0.0089 0.3065 -0.23993 2011 4 21 55672 -0.0089 0.3082 -0.24081 2011 4 22 55673 -0.0089 0.3099 -0.24158 2011 4 23 55674 -0.0089 0.3116 -0.24234 2011 4 24 55675 -0.0089 0.3133 -0.24315 2011 4 25 55676 -0.0088 0.3150 -0.24404 2011 4 26 55677 -0.0087 0.3167 -0.24502 2011 4 27 55678 -0.0086 0.3184 -0.24608 2011 4 28 55679 -0.0085 0.3201 -0.24718 2011 4 29 55680 -0.0083 0.3218 -0.24829 2011 4 30 55681 -0.0081 0.3235 -0.24937 2011 5 1 55682 -0.0079 0.3252 -0.25037 2011 5 2 55683 -0.0076 0.3269 -0.25127 2011 5 3 55684 -0.0073 0.3286 -0.25204 2011 5 4 55685 -0.0070 0.3302 -0.25268 2011 5 5 55686 -0.0067 0.3319 -0.25322 2011 5 6 55687 -0.0063 0.3336 -0.25369 2011 5 7 55688 -0.0059 0.3352 -0.25416 2011 5 8 55689 -0.0055 0.3369 -0.25469 2011 5 9 55690 -0.0051 0.3385 -0.25534 2011 5 10 55691 -0.0046 0.3401 -0.25617 2011 5 11 55692 -0.0041 0.3418 -0.25720 2011 5 12 55693 -0.0036 0.3434 -0.25841 2011 5 13 55694 -0.0030 0.3450 -0.25974 2011 5 14 55695 -0.0025 0.3466 -0.26107 2011 5 15 55696 -0.0019 0.3482 -0.26230 2011 5 16 55697 -0.0012 0.3497 -0.26331 2011 5 17 55698 -0.0006 0.3513 -0.26409 2011 5 18 55699 0.0001 0.3529 -0.26464 2011 5 19 55700 0.0007 0.3544 -0.26504 2011 5 20 55701 0.0015 0.3559 -0.26539 2011 5 21 55702 0.0022 0.3574 -0.26577 2011 5 22 55703 0.0030 0.3589 -0.26622 2011 5 23 55704 0.0037 0.3604 -0.26675 2011 5 24 55705 0.0045 0.3619 -0.26736 2011 5 25 55706 0.0054 0.3634 -0.26800 2011 5 26 55707 0.0062 0.3648 -0.26865 2011 5 27 55708 0.0071 0.3663 -0.26926 2011 5 28 55709 0.0080 0.3677 -0.26980 2011 5 29 55710 0.0089 0.3691 -0.27022 2011 5 30 55711 0.0098 0.3705 -0.27050 2011 5 31 55712 0.0107 0.3719 -0.27065 2011 6 1 55713 0.0117 0.3732 -0.27067 2011 6 2 55714 0.0127 0.3746 -0.27061 2011 6 3 55715 0.0137 0.3759 -0.27051 2011 6 4 55716 0.0147 0.3772 -0.27044 2011 6 5 55717 0.0158 0.3785 -0.27047 2011 6 6 55718 0.0168 0.3798 -0.27065 2011 6 7 55719 0.0179 0.3810 -0.27100 2011 6 8 55720 0.0190 0.3823 -0.27150 2011 6 9 55721 0.0201 0.3835 -0.27208 2011 6 10 55722 0.0212 0.3847 -0.27266 2011 6 11 55723 0.0224 0.3859 -0.27314 2011 6 12 55724 0.0235 0.3871 -0.27341 2011 6 13 55725 0.0247 0.3882 -0.27345 2011 6 14 55726 0.0259 0.3894 -0.27324 2011 6 15 55727 0.0271 0.3905 -0.27284 2011 6 16 55728 0.0283 0.3916 -0.27233 2011 6 17 55729 0.0295 0.3926 -0.27181 2011 6 18 55730 0.0308 0.3937 -0.27135 2011 6 19 55731 0.0320 0.3947 -0.27098 2011 6 20 55732 0.0333 0.3958 -0.27071 2011 6 21 55733 0.0346 0.3967 -0.27052 2011 6 22 55734 0.0359 0.3977 -0.27037 2011 6 23 55735 0.0372 0.3987 -0.27022 2011 6 24 55736 0.0385 0.3996 -0.27005 2011 6 25 55737 0.0398 0.4005 -0.26982 2011 6 26 55738 0.0412 0.4014 -0.26951 2011 6 27 55739 0.0425 0.4023 -0.26911 2011 6 28 55740 0.0439 0.4031 -0.26864 2011 6 29 55741 0.0452 0.4039 -0.26815 2011 6 30 55742 0.0466 0.4048 -0.26767 2011 7 1 55743 0.0480 0.4055 -0.26728 2011 7 2 55744 0.0494 0.4063 -0.26705 2011 7 3 55745 0.0508 0.4070 -0.26703 2011 7 4 55746 0.0522 0.4078 -0.26724 2011 7 5 55747 0.0536 0.4084 -0.26768 2011 7 6 55748 0.0550 0.4091 -0.26827 2011 7 7 55749 0.0564 0.4098 -0.26893 2011 7 8 55750 0.0579 0.4104 -0.26955 2011 7 9 55751 0.0593 0.4110 -0.27005 2011 7 10 55752 0.0607 0.4116 -0.27038 2011 7 11 55753 0.0622 0.4121 -0.27051 2011 7 12 55754 0.0636 0.4127 -0.27050 2011 7 13 55755 0.0651 0.4132 -0.27040 2011 7 14 55756 0.0665 0.4137 -0.27033 2011 7 15 55757 0.0680 0.4142 -0.27031 2011 7 16 55758 0.0694 0.4146 -0.27039 2011 7 17 55759 0.0709 0.4150 -0.27055 2011 7 18 55760 0.0723 0.4154 -0.27077 2011 7 19 55761 0.0738 0.4158 -0.27099 2011 7 20 55762 0.0753 0.4162 -0.27120 2011 7 21 55763 0.0767 0.4165 -0.27132 2011 7 22 55764 0.0782 0.4168 -0.27134 2011 7 23 55765 0.0796 0.4171 -0.27129 2011 7 24 55766 0.0811 0.4174 -0.27114 2011 7 25 55767 0.0826 0.4176 -0.27087 2011 7 26 55768 0.0840 0.4178 -0.27044 2011 7 27 55769 0.0855 0.4180 -0.26988 2011 7 28 55770 0.0869 0.4182 -0.26921 2011 7 29 55771 0.0884 0.4184 -0.26854 2011 7 30 55772 0.0898 0.4185 -0.26799 2011 7 31 55773 0.0912 0.4186 -0.26768 2011 8 1 55774 0.0927 0.4187 -0.26764 2011 8 2 55775 0.0941 0.4188 -0.26785 2011 8 3 55776 0.0955 0.4188 -0.26824 2011 8 4 55777 0.0970 0.4189 -0.26867 2011 8 5 55778 0.0984 0.4189 -0.26903 2011 8 6 55779 0.0998 0.4188 -0.26926 2011 8 7 55780 0.1012 0.4188 -0.26933 2011 8 8 55781 0.1026 0.4187 -0.26925 2011 8 9 55782 0.1040 0.4187 -0.26903 2011 8 10 55783 0.1054 0.4185 -0.26873 2011 8 11 55784 0.1067 0.4184 -0.26850 2011 8 12 55785 0.1081 0.4183 -0.26840 2011 8 13 55786 0.1095 0.4181 -0.26846 2011 8 14 55787 0.1108 0.4179 -0.26865 2011 8 15 55788 0.1121 0.4177 -0.26892 2011 8 16 55789 0.1135 0.4175 -0.26925 2011 8 17 55790 0.1148 0.4172 -0.26959 2011 8 18 55791 0.1161 0.4170 -0.26990 2011 8 19 55792 0.1174 0.4167 -0.27011 2011 8 20 55793 0.1187 0.4164 -0.27022 2011 8 21 55794 0.1200 0.4161 -0.27022 2011 8 22 55795 0.1213 0.4157 -0.27009 2011 8 23 55796 0.1225 0.4154 -0.26986 2011 8 24 55797 0.1238 0.4150 -0.26963 2011 8 25 55798 0.1250 0.4146 -0.26944 2011 8 26 55799 0.1262 0.4142 -0.26942 2011 8 27 55800 0.1275 0.4137 -0.26966 2011 8 28 55801 0.1287 0.4133 -0.27012 2011 8 29 55802 0.1299 0.4128 -0.27081 2011 8 30 55803 0.1310 0.4123 -0.27164 2011 8 31 55804 0.1322 0.4118 -0.27246 2011 9 1 55805 0.1333 0.4113 -0.27313 2011 9 2 55806 0.1345 0.4108 -0.27361 2011 9 3 55807 0.1356 0.4102 -0.27390 2011 9 4 55808 0.1367 0.4096 -0.27405 2011 9 5 55809 0.1378 0.4091 -0.27416 2011 9 6 55810 0.1389 0.4085 -0.27421 2011 9 7 55811 0.1399 0.4078 -0.27419 2011 9 8 55812 0.1410 0.4072 -0.27417 2011 9 9 55813 0.1420 0.4066 -0.27426 2011 9 10 55814 0.1430 0.4059 -0.27441 2011 9 11 55815 0.1440 0.4052 -0.27457 2011 9 12 55816 0.1450 0.4045 -0.27478 2011 9 13 55817 0.1460 0.4038 -0.27504 2011 9 14 55818 0.1469 0.4031 -0.27530 2011 9 15 55819 0.1479 0.4024 -0.27555 2011 9 16 55820 0.1488 0.4017 -0.27574 2011 9 17 55821 0.1497 0.4009 -0.27587 2011 9 18 55822 0.1506 0.4001 -0.27593 2011 9 19 55823 0.1515 0.3994 -0.27588 2011 9 20 55824 0.1523 0.3986 -0.27577 2011 9 21 55825 0.1532 0.3978 -0.27570 2011 9 22 55826 0.1540 0.3969 -0.27582 2011 9 23 55827 0.1548 0.3961 -0.27629 2011 9 24 55828 0.1556 0.3953 -0.27705 2011 9 25 55829 0.1563 0.3944 -0.27813 2011 9 26 55830 0.1571 0.3936 -0.27952 2011 9 27 55831 0.1578 0.3927 -0.28096 2011 9 28 55832 0.1585 0.3918 -0.28234 2011 9 29 55833 0.1592 0.3910 -0.28364 2011 9 30 55834 0.1599 0.3901 -0.28473 2011 10 1 55835 0.1606 0.3892 -0.28563 2011 10 2 55836 0.1612 0.3882 -0.28638 2011 10 3 55837 0.1618 0.3873 -0.28704 2011 10 4 55838 0.1624 0.3864 -0.28777 2011 10 5 55839 0.1630 0.3855 -0.28858 2011 10 6 55840 0.1636 0.3845 -0.28950 2011 10 7 55841 0.1642 0.3836 -0.29051 2011 10 8 55842 0.1647 0.3826 -0.29166 2011 10 9 55843 0.1652 0.3817 -0.29287 2011 10 10 55844 0.1657 0.3807 -0.29411 2011 10 11 55845 0.1662 0.3797 -0.29540 2011 10 12 55846 0.1666 0.3787 -0.29667 2011 10 13 55847 0.1671 0.3778 -0.29784 2011 10 14 55848 0.1675 0.3768 -0.29891 2011 10 15 55849 0.1679 0.3758 -0.29987 2011 10 16 55850 0.1683 0.3748 -0.30073 2011 10 17 55851 0.1687 0.3738 -0.30147 2011 10 18 55852 0.1690 0.3728 -0.30220 2011 10 19 55853 0.1694 0.3718 -0.30296 2011 10 20 55854 0.1697 0.3708 -0.30383 2011 10 21 55855 0.1700 0.3698 -0.30487 2011 10 22 55856 0.1702 0.3687 -0.30612 2011 10 23 55857 0.1705 0.3677 -0.30758 2011 10 24 55858 0.1707 0.3667 -0.30924 2011 10 25 55859 0.1710 0.3657 -0.31103 2011 10 26 55860 0.1712 0.3647 -0.31282 2011 10 27 55861 0.1714 0.3637 -0.31449 2011 10 28 55862 0.1715 0.3626 -0.31595 2011 10 29 55863 0.1717 0.3616 -0.31722 2011 10 30 55864 0.1718 0.3606 -0.31839 2011 10 31 55865 0.1720 0.3596 -0.31949 2011 11 1 55866 0.1721 0.3585 -0.32059 2011 11 2 55867 0.1721 0.3575 -0.32172 2011 11 3 55868 0.1722 0.3565 -0.32283 2011 11 4 55869 0.1723 0.3555 -0.32400 2011 11 5 55870 0.1723 0.3545 -0.32522 2011 11 6 55871 0.1723 0.3534 -0.32640 2011 11 7 55872 0.1723 0.3524 -0.32756 2011 11 8 55873 0.1723 0.3514 -0.32868 2011 11 9 55874 0.1723 0.3504 -0.32974 2011 11 10 55875 0.1722 0.3494 -0.33065 2011 11 11 55876 0.1722 0.3484 -0.33142 2011 11 12 55877 0.1721 0.3474 -0.33206 2011 11 13 55878 0.1720 0.3464 -0.33258 2011 11 14 55879 0.1719 0.3454 -0.33311 2011 11 15 55880 0.1717 0.3444 -0.33373 2011 11 16 55881 0.1716 0.3434 -0.33446 2011 11 17 55882 0.1714 0.3425 -0.33528 2011 11 18 55883 0.1713 0.3415 -0.33627 2011 11 19 55884 0.1711 0.3405 -0.33742 2011 11 20 55885 0.1709 0.3396 -0.33873 2011 11 21 55886 0.1707 0.3386 -0.34017 2011 11 22 55887 0.1704 0.3376 -0.34157 2011 11 23 55888 0.1702 0.3367 -0.34285 2011 11 24 55889 0.1700 0.3357 -0.34395 2011 11 25 55890 0.1697 0.3348 -0.34489 2011 11 26 55891 0.1694 0.3339 -0.34567 2011 11 27 55892 0.1691 0.3330 -0.34635 2011 11 28 55893 0.1688 0.3320 -0.34704 2011 11 29 55894 0.1685 0.3311 -0.34777 2011 11 30 55895 0.1681 0.3302 -0.34852 2011 12 1 55896 0.1678 0.3293 -0.34936 2011 12 2 55897 0.1674 0.3285 -0.35021 2011 12 3 55898 0.1671 0.3276 -0.35106 2011 12 4 55899 0.1667 0.3267 -0.35190 2011 12 5 55900 0.1663 0.3258 -0.35270 2011 12 6 55901 0.1659 0.3250 -0.35350 2011 12 7 55902 0.1655 0.3242 -0.35424 2011 12 8 55903 0.1651 0.3233 -0.35489 2011 12 9 55904 0.1646 0.3225 -0.35546 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) 55517 -68.93 0.15 -7.74 0.34 55518 -69.03 0.15 -7.71 0.34 55519 -69.09 0.15 -7.67 0.34 55520 -69.17 0.74 -7.58 0.13 55521 -69.29 0.74 -7.41 0.13 55522 -69.35 0.14 -7.24 0.13 55523 -69.22 0.33 -7.17 0.15 55524 -68.88 0.33 -7.21 0.15 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55517 0.284 0.060 -0.099 0.340 55518 0.266 0.060 -0.125 0.340 55519 0.257 0.060 -0.155 0.340 55520 0.250 0.294 -0.186 0.130 55521 0.251 0.294 -0.200 0.130 55522 0.262 0.056 -0.219 0.130 55523 0.274 0.131 -0.250 0.150 55524 0.281 0.131 -0.264 0.150 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.