********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 6 January 2011 Vol. XXIV No. 001 ______________________________________________________________________ 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 = -0.2 seconds beginning 6 January 2011 at 0000 UTC Beginning 1 January 2009: TAI-UTC(BIPM) = 34.000 000 seconds ********************************************************************** * As of Bulletin A Vol. XXIV, No. 005, on 03 Feb 2011, we will * * adopt the new 08C04 EOP system. This will result in a jump of * * less than 0.1 mas in polar motion and 10 us in UT1-UTC. The * * only users who need to be concerned with this change are those * * who need EOP accuracy to better than 0.1 mas (~0.3 cm at the * * Earth's surface, ~1.3 cm at GPS orbit). * ********************************************************************** ________________________________________________________________________ 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 31 55561 0.13406 .00009 0.20410 .00009 -0.140240 0.000012 11 1 1 55562 0.13095 .00010 0.20317 .00009 -0.140561 0.000012 11 1 2 55563 0.12770 .00009 0.20232 .00009 -0.140788 0.000010 11 1 3 55564 0.12443 .00009 0.20141 .00009 -0.140974 0.000009 11 1 4 55565 0.12129 .00009 0.20070 .00009 -0.141148 0.000009 11 1 5 55566 0.11772 .00009 0.20034 .00009 -0.141354 0.000008 11 1 6 55567 0.11369 .00009 0.19994 .00009 -0.141657 0.000007 IERS Final Values MJD x y UT1-UTC " " s 10 11 2 55502 0.2215 0.2973 -0.09273 10 11 3 55503 0.2209 0.2943 -0.09446 10 11 4 55504 0.2207 0.2919 -0.09616 10 11 5 55505 0.2204 0.2896 -0.09771 10 11 6 55506 0.2203 0.2873 -0.09907 10 11 7 55507 0.2195 0.2855 -0.10017 10 11 8 55508 0.2177 0.2831 -0.10098 10 11 9 55509 0.2162 0.2807 -0.10167 10 11 10 55510 0.2150 0.2788 -0.10227 10 11 11 55511 0.2138 0.2770 -0.10285 10 11 12 55512 0.2127 0.2751 -0.10353 10 11 13 55513 0.2119 0.2736 -0.10436 10 11 14 55514 0.2110 0.2724 -0.10534 10 11 15 55515 0.2100 0.2707 -0.10643 10 11 16 55516 0.2089 0.2687 -0.10759 10 11 17 55517 0.2079 0.2662 -0.10878 10 11 18 55518 0.2072 0.2636 -0.10991 10 11 19 55519 0.2064 0.2610 -0.11091 10 11 20 55520 0.2056 0.2584 -0.11174 10 11 21 55521 0.2051 0.2562 -0.11242 10 11 22 55522 0.2048 0.2543 -0.11299 10 11 23 55523 0.2042 0.2524 -0.11346 10 11 24 55524 0.2028 0.2507 -0.11394 10 11 25 55525 0.2012 0.2488 -0.11450 10 11 26 55526 0.1999 0.2470 -0.11521 10 11 27 55527 0.1988 0.2457 -0.11614 10 11 28 55528 0.1973 0.2445 -0.11733 10 11 29 55529 0.1958 0.2429 -0.11869 10 11 30 55530 0.1947 0.2411 -0.12007 10 12 1 55531 0.1935 0.2398 -0.12144 _______________________________________________________________________ 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 = 0.0788 - 0.0000 cos A - 0.1123 sin A + 0.0335 cos C - 0.0311 sin C y = 0.3295 - 0.1007 cos A + 0.0058 sin A - 0.0311 cos C - 0.0335 sin C UT1-UTC = -0.1369 - 0.00073 (MJD - 55575) - (UT2-UT1) where A = 2*pi*(MJD-55567)/365.25 and C = 2*pi*(MJD-55567)/435. TAI-UTC(MJD 55568) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55567)**0.80 S t = 0.00025 (MJD-55567)**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) 2011 1 7 55568 0.1106 0.1993 -0.14210 2011 1 8 55569 0.1073 0.1987 -0.14263 2011 1 9 55570 0.1043 0.1982 -0.14321 2011 1 10 55571 0.1016 0.1978 -0.14379 2011 1 11 55572 0.0990 0.1976 -0.14433 2011 1 12 55573 0.0966 0.1974 -0.14482 2011 1 13 55574 0.0941 0.1974 -0.14524 2011 1 14 55575 0.0917 0.1974 -0.14556 2011 1 15 55576 0.0893 0.1974 -0.14576 2011 1 16 55577 0.0869 0.1975 -0.14585 2011 1 17 55578 0.0846 0.1976 -0.14591 2011 1 18 55579 0.0824 0.1977 -0.14603 2011 1 19 55580 0.0802 0.1979 -0.14630 2011 1 20 55581 0.0780 0.1982 -0.14680 2011 1 21 55582 0.0759 0.1985 -0.14758 2011 1 22 55583 0.0738 0.1988 -0.14859 2011 1 23 55584 0.0716 0.1992 -0.14975 2011 1 24 55585 0.0695 0.1996 -0.15093 2011 1 25 55586 0.0675 0.2000 -0.15197 2011 1 26 55587 0.0654 0.2005 -0.15280 2011 1 27 55588 0.0634 0.2010 -0.15338 2011 1 28 55589 0.0614 0.2015 -0.15375 2011 1 29 55590 0.0594 0.2021 -0.15396 2011 1 30 55591 0.0574 0.2027 -0.15410 2011 1 31 55592 0.0554 0.2034 -0.15425 2011 2 1 55593 0.0535 0.2041 -0.15448 2011 2 2 55594 0.0516 0.2048 -0.15485 2011 2 3 55595 0.0496 0.2055 -0.15536 2011 2 4 55596 0.0477 0.2063 -0.15600 2011 2 5 55597 0.0459 0.2071 -0.15674 2011 2 6 55598 0.0440 0.2079 -0.15753 2011 2 7 55599 0.0422 0.2088 -0.15834 2011 2 8 55600 0.0404 0.2096 -0.15910 2011 2 9 55601 0.0385 0.2106 -0.15979 2011 2 10 55602 0.0368 0.2115 -0.16038 2011 2 11 55603 0.0350 0.2125 -0.16087 2011 2 12 55604 0.0333 0.2135 -0.16128 2011 2 13 55605 0.0315 0.2145 -0.16165 2011 2 14 55606 0.0298 0.2155 -0.16204 2011 2 15 55607 0.0282 0.2166 -0.16254 2011 2 16 55608 0.0265 0.2177 -0.16324 2011 2 17 55609 0.0249 0.2188 -0.16421 2011 2 18 55610 0.0233 0.2200 -0.16547 2011 2 19 55611 0.0217 0.2212 -0.16695 2011 2 20 55612 0.0201 0.2224 -0.16854 2011 2 21 55613 0.0186 0.2236 -0.17008 2011 2 22 55614 0.0170 0.2248 -0.17143 2011 2 23 55615 0.0155 0.2261 -0.17252 2011 2 24 55616 0.0141 0.2274 -0.17338 2011 2 25 55617 0.0126 0.2287 -0.17405 2011 2 26 55618 0.0112 0.2301 -0.17462 2011 2 27 55619 0.0098 0.2314 -0.17518 2011 2 28 55620 0.0084 0.2328 -0.17581 2011 3 1 55621 0.0071 0.2342 -0.17654 2011 3 2 55622 0.0058 0.2356 -0.17741 2011 3 3 55623 0.0045 0.2371 -0.17841 2011 3 4 55624 0.0032 0.2386 -0.17952 2011 3 5 55625 0.0020 0.2400 -0.18070 2011 3 6 55626 0.0008 0.2415 -0.18190 2011 3 7 55627 -0.0004 0.2431 -0.18306 2011 3 8 55628 -0.0016 0.2446 -0.18414 2011 3 9 55629 -0.0027 0.2462 -0.18512 2011 3 10 55630 -0.0038 0.2477 -0.18597 2011 3 11 55631 -0.0048 0.2493 -0.18672 2011 3 12 55632 -0.0059 0.2509 -0.18740 2011 3 13 55633 -0.0069 0.2525 -0.18805 2011 3 14 55634 -0.0079 0.2542 -0.18875 2011 3 15 55635 -0.0088 0.2558 -0.18959 2011 3 16 55636 -0.0097 0.2575 -0.19066 2011 3 17 55637 -0.0106 0.2592 -0.19199 2011 3 18 55638 -0.0115 0.2609 -0.19358 2011 3 19 55639 -0.0123 0.2626 -0.19534 2011 3 20 55640 -0.0131 0.2643 -0.19714 2011 3 21 55641 -0.0139 0.2660 -0.19882 2011 3 22 55642 -0.0146 0.2678 -0.20027 2011 3 23 55643 -0.0153 0.2695 -0.20146 2011 3 24 55644 -0.0160 0.2713 -0.20243 2011 3 25 55645 -0.0167 0.2730 -0.20324 2011 3 26 55646 -0.0173 0.2748 -0.20400 2011 3 27 55647 -0.0179 0.2766 -0.20478 2011 3 28 55648 -0.0184 0.2784 -0.20565 2011 3 29 55649 -0.0190 0.2802 -0.20662 2011 3 30 55650 -0.0195 0.2820 -0.20770 2011 3 31 55651 -0.0199 0.2839 -0.20887 2011 4 1 55652 -0.0203 0.2857 -0.21011 2011 4 2 55653 -0.0207 0.2875 -0.21136 2011 4 3 55654 -0.0211 0.2894 -0.21259 2011 4 4 55655 -0.0214 0.2912 -0.21375 2011 4 5 55656 -0.0218 0.2931 -0.21481 2011 4 6 55657 -0.0220 0.2949 -0.21575 2011 4 7 55658 -0.0223 0.2968 -0.21658 2011 4 8 55659 -0.0225 0.2986 -0.21731 2011 4 9 55660 -0.0227 0.3005 -0.21801 2011 4 10 55661 -0.0228 0.3024 -0.21873 2011 4 11 55662 -0.0229 0.3042 -0.21953 2011 4 12 55663 -0.0230 0.3061 -0.22051 2011 4 13 55664 -0.0231 0.3080 -0.22171 2011 4 14 55665 -0.0231 0.3099 -0.22316 2011 4 15 55666 -0.0231 0.3117 -0.22480 2011 4 16 55667 -0.0231 0.3136 -0.22654 2011 4 17 55668 -0.0230 0.3155 -0.22825 2011 4 18 55669 -0.0229 0.3173 -0.22978 2011 4 19 55670 -0.0228 0.3192 -0.23106 2011 4 20 55671 -0.0226 0.3211 -0.23209 2011 4 21 55672 -0.0224 0.3229 -0.23291 2011 4 22 55673 -0.0222 0.3248 -0.23362 2011 4 23 55674 -0.0219 0.3266 -0.23432 2011 4 24 55675 -0.0216 0.3285 -0.23508 2011 4 25 55676 -0.0213 0.3303 -0.23589 2011 4 26 55677 -0.0210 0.3322 -0.23679 2011 4 27 55678 -0.0206 0.3340 -0.23776 2011 4 28 55679 -0.0202 0.3358 -0.23878 2011 4 29 55680 -0.0198 0.3376 -0.23981 2011 4 30 55681 -0.0193 0.3394 -0.24080 2011 5 1 55682 -0.0188 0.3412 -0.24172 2011 5 2 55683 -0.0183 0.3430 -0.24253 2011 5 3 55684 -0.0177 0.3448 -0.24321 2011 5 4 55685 -0.0172 0.3466 -0.24377 2011 5 5 55686 -0.0166 0.3484 -0.24422 2011 5 6 55687 -0.0159 0.3501 -0.24460 2011 5 7 55688 -0.0153 0.3519 -0.24498 2011 5 8 55689 -0.0146 0.3536 -0.24542 2011 5 9 55690 -0.0139 0.3554 -0.24598 2011 5 10 55691 -0.0132 0.3571 -0.24673 2011 5 11 55692 -0.0124 0.3588 -0.24768 2011 5 12 55693 -0.0116 0.3605 -0.24880 2011 5 13 55694 -0.0108 0.3621 -0.25005 2011 5 14 55695 -0.0100 0.3638 -0.25130 2011 5 15 55696 -0.0091 0.3655 -0.25244 2011 5 16 55697 -0.0082 0.3671 -0.25337 2011 5 17 55698 -0.0073 0.3687 -0.25407 2011 5 18 55699 -0.0064 0.3703 -0.25454 2011 5 19 55700 -0.0054 0.3719 -0.25487 2011 5 20 55701 -0.0044 0.3735 -0.25514 2011 5 21 55702 -0.0034 0.3751 -0.25545 2011 5 22 55703 -0.0024 0.3766 -0.25583 2011 5 23 55704 -0.0013 0.3782 -0.25630 2011 5 24 55705 -0.0003 0.3797 -0.25685 2011 5 25 55706 0.0008 0.3812 -0.25744 2011 5 26 55707 0.0020 0.3827 -0.25804 2011 5 27 55708 0.0031 0.3841 -0.25861 2011 5 28 55709 0.0043 0.3856 -0.25910 2011 5 29 55710 0.0054 0.3870 -0.25949 2011 5 30 55711 0.0066 0.3884 -0.25976 2011 5 31 55712 0.0079 0.3898 -0.25989 2011 6 1 55713 0.0091 0.3912 -0.25990 2011 6 2 55714 0.0104 0.3925 -0.25984 2011 6 3 55715 0.0116 0.3939 -0.25975 2011 6 4 55716 0.0129 0.3952 -0.25971 2011 6 5 55717 0.0142 0.3965 -0.25978 2011 6 6 55718 0.0156 0.3977 -0.26002 2011 6 7 55719 0.0169 0.3990 -0.26044 2011 6 8 55720 0.0183 0.4002 -0.26102 2011 6 9 55721 0.0197 0.4014 -0.26172 2011 6 10 55722 0.0211 0.4026 -0.26243 2011 6 11 55723 0.0225 0.4038 -0.26305 2011 6 12 55724 0.0239 0.4049 -0.26351 2011 6 13 55725 0.0253 0.4060 -0.26376 2011 6 14 55726 0.0268 0.4071 -0.26379 2011 6 15 55727 0.0282 0.4082 -0.26365 2011 6 16 55728 0.0297 0.4093 -0.26344 2011 6 17 55729 0.0312 0.4103 -0.26323 2011 6 18 55730 0.0327 0.4113 -0.26309 2011 6 19 55731 0.0342 0.4123 -0.26305 2011 6 20 55732 0.0358 0.4132 -0.26310 2011 6 21 55733 0.0373 0.4142 -0.26321 2011 6 22 55734 0.0389 0.4151 -0.26335 2011 6 23 55735 0.0404 0.4160 -0.26346 2011 6 24 55736 0.0420 0.4168 -0.26351 2011 6 25 55737 0.0436 0.4177 -0.26346 2011 6 26 55738 0.0452 0.4185 -0.26329 2011 6 27 55739 0.0468 0.4193 -0.26299 2011 6 28 55740 0.0484 0.4201 -0.26256 2011 6 29 55741 0.0500 0.4208 -0.26205 2011 6 30 55742 0.0516 0.4215 -0.26151 2011 7 1 55743 0.0532 0.4222 -0.26099 2011 7 2 55744 0.0548 0.4229 -0.26057 2011 7 3 55745 0.0565 0.4235 -0.26032 2011 7 4 55746 0.0581 0.4241 -0.26025 2011 7 5 55747 0.0598 0.4247 -0.26035 2011 7 6 55748 0.0614 0.4253 -0.26057 2011 7 7 55749 0.0631 0.4258 -0.26079 2011 7 8 55750 0.0647 0.4264 -0.26092 2011 7 9 55751 0.0664 0.4268 -0.26086 2011 7 10 55752 0.0681 0.4273 -0.26057 2011 7 11 55753 0.0697 0.4277 -0.26005 2011 7 12 55754 0.0714 0.4282 -0.25933 2011 7 13 55755 0.0731 0.4285 -0.25849 2011 7 14 55756 0.0747 0.4289 -0.25763 2011 7 15 55757 0.0764 0.4292 -0.25684 2011 7 16 55758 0.0781 0.4296 -0.25616 2011 7 17 55759 0.0797 0.4298 -0.25563 2011 7 18 55760 0.0814 0.4301 -0.25524 2011 7 19 55761 0.0831 0.4303 -0.25493 2011 7 20 55762 0.0847 0.4306 -0.25467 2011 7 21 55763 0.0864 0.4307 -0.25439 2011 7 22 55764 0.0881 0.4309 -0.25404 2011 7 23 55765 0.0897 0.4310 -0.25361 2011 7 24 55766 0.0914 0.4311 -0.25306 2011 7 25 55767 0.0930 0.4312 -0.25241 2011 7 26 55768 0.0947 0.4313 -0.25168 2011 7 27 55769 0.0963 0.4313 -0.25092 2011 7 28 55770 0.0980 0.4313 -0.25018 2011 7 29 55771 0.0996 0.4313 -0.24955 2011 7 30 55772 0.1012 0.4313 -0.24910 2011 7 31 55773 0.1029 0.4312 -0.24889 2011 8 1 55774 0.1045 0.4311 -0.24891 2011 8 2 55775 0.1061 0.4310 -0.24911 2011 8 3 55776 0.1077 0.4309 -0.24940 2011 8 4 55777 0.1093 0.4307 -0.24964 2011 8 5 55778 0.1108 0.4305 -0.24972 2011 8 6 55779 0.1124 0.4303 -0.24958 2011 8 7 55780 0.1140 0.4301 -0.24923 2011 8 8 55781 0.1155 0.4298 -0.24870 2011 8 9 55782 0.1171 0.4295 -0.24809 2011 8 10 55783 0.1186 0.4292 -0.24747 2011 8 11 55784 0.1202 0.4289 -0.24696 2011 8 12 55785 0.1217 0.4286 -0.24659 2011 8 13 55786 0.1232 0.4282 -0.24640 2011 8 14 55787 0.1247 0.4278 -0.24634 2011 8 15 55788 0.1262 0.4274 -0.24641 2011 8 16 55789 0.1276 0.4269 -0.24659 2011 8 17 55790 0.1291 0.4265 -0.24683 2011 8 18 55791 0.1305 0.4260 -0.24706 2011 8 19 55792 0.1320 0.4255 -0.24721 2011 8 20 55793 0.1334 0.4250 -0.24727 2011 8 21 55794 0.1348 0.4244 -0.24721 2011 8 22 55795 0.1362 0.4239 -0.24704 2011 8 23 55796 0.1376 0.4233 -0.24679 2011 8 24 55797 0.1389 0.4227 -0.24660 2011 8 25 55798 0.1403 0.4220 -0.24651 2011 8 26 55799 0.1416 0.4214 -0.24663 2011 8 27 55800 0.1429 0.4207 -0.24703 2011 8 28 55801 0.1442 0.4201 -0.24771 2011 8 29 55802 0.1455 0.4194 -0.24865 2011 8 30 55803 0.1468 0.4186 -0.24974 2011 8 31 55804 0.1480 0.4179 -0.25086 2011 9 1 55805 0.1493 0.4171 -0.25195 2011 9 2 55806 0.1505 0.4164 -0.25296 2011 9 3 55807 0.1517 0.4156 -0.25378 2011 9 4 55808 0.1529 0.4148 -0.25433 2011 9 5 55809 0.1541 0.4139 -0.25473 2011 9 6 55810 0.1552 0.4131 -0.25513 2011 9 7 55811 0.1563 0.4122 -0.25562 2011 9 8 55812 0.1574 0.4113 -0.25625 2011 9 9 55813 0.1585 0.4105 -0.25698 2011 9 10 55814 0.1596 0.4095 -0.25778 2011 9 11 55815 0.1607 0.4086 -0.25868 2011 9 12 55816 0.1617 0.4077 -0.25960 2011 9 13 55817 0.1627 0.4067 -0.26047 2011 9 14 55818 0.1637 0.4058 -0.26129 2011 9 15 55819 0.1647 0.4048 -0.26199 2011 9 16 55820 0.1657 0.4038 -0.26257 2011 9 17 55821 0.1666 0.4028 -0.26310 2011 9 18 55822 0.1676 0.4018 -0.26355 2011 9 19 55823 0.1685 0.4007 -0.26394 2011 9 20 55824 0.1693 0.3997 -0.26425 2011 9 21 55825 0.1702 0.3986 -0.26450 2011 9 22 55826 0.1710 0.3975 -0.26476 2011 9 23 55827 0.1719 0.3965 -0.26509 2011 9 24 55828 0.1727 0.3954 -0.26562 2011 9 25 55829 0.1735 0.3943 -0.26642 2011 9 26 55830 0.1742 0.3932 -0.26747 2011 9 27 55831 0.1750 0.3920 -0.26870 2011 9 28 55832 0.1757 0.3909 -0.27001 2011 9 29 55833 0.1764 0.3898 -0.27125 2011 9 30 55834 0.1770 0.3886 -0.27235 2011 10 1 55835 0.1777 0.3874 -0.27330 2011 10 2 55836 0.1783 0.3863 -0.27411 2011 10 3 55837 0.1789 0.3851 -0.27488 2011 10 4 55838 0.1795 0.3839 -0.27561 2011 10 5 55839 0.1801 0.3827 -0.27635 2011 10 6 55840 0.1807 0.3815 -0.27720 2011 10 7 55841 0.1812 0.3803 -0.27817 2011 10 8 55842 0.1817 0.3791 -0.27928 2011 10 9 55843 0.1822 0.3779 -0.28045 2011 10 10 55844 0.1826 0.3767 -0.28162 2011 10 11 55845 0.1831 0.3754 -0.28278 2011 10 12 55846 0.1835 0.3742 -0.28390 2011 10 13 55847 0.1839 0.3730 -0.28493 2011 10 14 55848 0.1843 0.3717 -0.28584 2011 10 15 55849 0.1846 0.3705 -0.28667 2011 10 16 55850 0.1850 0.3692 -0.28740 2011 10 17 55851 0.1853 0.3680 -0.28805 2011 10 18 55852 0.1856 0.3667 -0.28866 2011 10 19 55853 0.1858 0.3655 -0.28934 2011 10 20 55854 0.1861 0.3642 -0.29012 2011 10 21 55855 0.1863 0.3629 -0.29111 2011 10 22 55856 0.1865 0.3617 -0.29236 2011 10 23 55857 0.1867 0.3604 -0.29379 2011 10 24 55858 0.1869 0.3591 -0.29536 2011 10 25 55859 0.1870 0.3579 -0.29696 2011 10 26 55860 0.1871 0.3566 -0.29844 2011 10 27 55861 0.1873 0.3553 -0.29968 2011 10 28 55862 0.1873 0.3541 -0.30070 2011 10 29 55863 0.1874 0.3528 -0.30155 2011 10 30 55864 0.1874 0.3515 -0.30233 2011 10 31 55865 0.1875 0.3503 -0.30316 2011 11 1 55866 0.1875 0.3490 -0.30400 2011 11 2 55867 0.1875 0.3478 -0.30482 2011 11 3 55868 0.1874 0.3465 -0.30564 2011 11 4 55869 0.1874 0.3452 -0.30650 2011 11 5 55870 0.1873 0.3440 -0.30735 2011 11 6 55871 0.1872 0.3427 -0.30811 2011 11 7 55872 0.1871 0.3415 -0.30882 2011 11 8 55873 0.1869 0.3402 -0.30949 2011 11 9 55874 0.1868 0.3390 -0.31010 2011 11 10 55875 0.1866 0.3378 -0.31066 2011 11 11 55876 0.1864 0.3365 -0.31112 2011 11 12 55877 0.1862 0.3353 -0.31154 2011 11 13 55878 0.1860 0.3341 -0.31191 2011 11 14 55879 0.1858 0.3329 -0.31222 2011 11 15 55880 0.1855 0.3317 -0.31254 2011 11 16 55881 0.1852 0.3305 -0.31294 2011 11 17 55882 0.1849 0.3293 -0.31357 2011 11 18 55883 0.1846 0.3281 -0.31454 2011 11 19 55884 0.1843 0.3269 -0.31574 2011 11 20 55885 0.1839 0.3257 -0.31716 2011 11 21 55886 0.1836 0.3246 -0.31873 2011 11 22 55887 0.1832 0.3234 -0.32023 2011 11 23 55888 0.1828 0.3223 -0.32156 2011 11 24 55889 0.1824 0.3211 -0.32275 2011 11 25 55890 0.1820 0.3200 -0.32375 2011 11 26 55891 0.1815 0.3189 -0.32464 2011 11 27 55892 0.1811 0.3177 -0.32547 2011 11 28 55893 0.1806 0.3166 -0.32630 2011 11 29 55894 0.1801 0.3155 -0.32727 2011 11 30 55895 0.1796 0.3144 -0.32834 2011 12 1 55896 0.1791 0.3134 -0.32948 2011 12 2 55897 0.1786 0.3123 -0.33065 2011 12 3 55898 0.1780 0.3112 -0.33187 2011 12 4 55899 0.1775 0.3102 -0.33305 2011 12 5 55900 0.1769 0.3091 -0.33417 2011 12 6 55901 0.1763 0.3081 -0.33525 2011 12 7 55902 0.1757 0.3071 -0.33626 2011 12 8 55903 0.1751 0.3061 -0.33716 2011 12 9 55904 0.1745 0.3051 -0.33795 2011 12 10 55905 0.1739 0.3041 -0.33866 2011 12 11 55906 0.1732 0.3031 -0.33932 2011 12 12 55907 0.1726 0.3022 -0.33994 2011 12 13 55908 0.1719 0.3012 -0.34061 2011 12 14 55909 0.1712 0.3003 -0.34137 2011 12 15 55910 0.1705 0.2994 -0.34226 2011 12 16 55911 0.1698 0.2984 -0.34329 2011 12 17 55912 0.1691 0.2975 -0.34445 2011 12 18 55913 0.1684 0.2967 -0.34568 2011 12 19 55914 0.1677 0.2958 -0.34693 2011 12 20 55915 0.1670 0.2949 -0.34817 2011 12 21 55916 0.1662 0.2941 -0.34934 2011 12 22 55917 0.1655 0.2932 -0.35038 2011 12 23 55918 0.1647 0.2924 -0.35127 2011 12 24 55919 0.1639 0.2916 -0.35209 2011 12 25 55920 0.1631 0.2908 -0.35293 2011 12 26 55921 0.1624 0.2900 -0.35381 2011 12 27 55922 0.1616 0.2893 -0.35475 2011 12 28 55923 0.1608 0.2885 -0.35574 2011 12 29 55924 0.1600 0.2878 -0.35668 2011 12 30 55925 0.1592 0.2870 -0.35763 2011 12 31 55926 0.1583 0.2863 -0.35855 2012 1 1 55927 0.1575 0.2856 -0.35937 2012 1 2 55928 0.1567 0.2849 -0.36009 2012 1 3 55929 0.1559 0.2843 -0.36074 2012 1 4 55930 0.1550 0.2836 -0.36130 2012 1 5 55931 0.1542 0.2830 -0.36173 2012 1 6 55932 0.1533 0.2823 -0.36205 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) 55541 -66.71 0.14 -6.43 0.17 55542 -66.77 0.14 -6.58 0.17 55543 -66.94 0.14 -6.68 0.17 55544 -67.18 0.74 -6.66 0.34 55545 -67.41 0.74 -6.60 0.34 55546 -67.56 0.74 -6.58 0.34 55547 -67.65 0.74 -6.59 0.34 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 55502 -70.4 -8.2 55503 -70.4 -7.9 55504 -70.4 -7.8 55505 -70.4 -7.9 55506 -70.2 -8.1 55507 -70.1 -8.1 55508 -69.9 -8.0 55509 -69.7 -7.8 55510 -69.5 -7.8 55511 -69.3 -7.7 55512 -69.2 -7.7 55513 -69.0 -7.8 55514 -68.8 -7.8 55515 -68.7 -7.8 55516 -68.7 -7.8 55517 -68.7 -7.8 55518 -68.8 -7.7 55519 -68.9 -7.7 55520 -69.0 -7.5 55521 -69.2 -7.3 55522 -69.5 -7.1 55523 -69.4 -7.1 55524 -69.0 -7.3 55525 -68.4 -7.7 55526 -67.9 -8.0 55527 -67.7 -8.1 55528 -67.7 -8.0 55529 -67.7 -7.8 55530 -67.8 -7.4 55531 -67.8 -6.9 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55541 0.323 0.056 -0.189 0.170 55542 0.315 0.056 -0.168 0.170 55543 0.296 0.056 -0.168 0.170 55544 0.265 0.294 -0.148 0.340 55545 0.232 0.294 -0.122 0.340 55546 0.211 0.294 -0.111 0.340 55547 0.191 0.294 -0.136 0.340 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 55502 0.29 0.06 55503 0.37 0.05 55504 0.42 -0.01 55505 0.36 -0.03 55506 0.31 -0.04 55507 0.25 0.02 55508 0.32 0.01 55509 0.39 0.01 55510 0.39 -0.17 55511 0.34 -0.18 55512 0.28 -0.21 55513 0.32 -0.28 55514 0.36 -0.20 55515 0.37 -0.13 55516 0.36 -0.12 55517 0.38 -0.16 55518 0.36 -0.12 55519 0.33 -0.19 55520 0.32 -0.11 55521 0.29 -0.09 55522 0.20 -0.08 55523 0.20 -0.18 55524 0.23 -0.35 55525 0.31 -0.65 55526 0.37 -0.84 55527 0.38 -0.87 55528 0.36 -0.78 55529 0.36 -0.66 55530 0.34 -0.44 55531 0.38 -0.19 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.