********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 3 February 2011 Vol. XXIV No. 005 ______________________________________________________________________ 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 have * * adopted 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). * * * * There will NOT be a leap second introduced in UTC on * * 30 June 2011. * ********************************************************************** ________________________________________________________________________ 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 11 1 28 55589 0.04955 .00009 0.19805 .00009 -0.155210 0.000020 11 1 29 55590 0.04751 .00010 0.19865 .00009 -0.155578 0.000018 11 1 30 55591 0.04610 .00010 0.19922 .00009 -0.155886 0.000018 11 1 31 55592 0.04514 .00010 0.19983 .00009 -0.156211 0.000016 11 2 1 55593 0.04446 .00010 0.20061 .00009 -0.156580 0.000016 11 2 2 55594 0.04371 .00010 0.20145 .00009 -0.157047 0.000012 11 2 3 55595 0.04287 .00010 0.20218 .00010 -0.157676 0.000006 IERS Final Values MJD x y UT1-UTC " " s 10 12 2 55532 0.1921 0.2384 -0.12268 10 12 3 55533 0.1910 0.2369 -0.12367 10 12 4 55534 0.1900 0.2354 -0.12441 10 12 5 55535 0.1883 0.2340 -0.12494 10 12 6 55536 0.1864 0.2324 -0.12537 10 12 7 55537 0.1849 0.2309 -0.12578 10 12 8 55538 0.1838 0.2295 -0.12624 10 12 9 55539 0.1830 0.2284 -0.12680 10 12 10 55540 0.1818 0.2277 -0.12747 10 12 11 55541 0.1799 0.2268 -0.12818 10 12 12 55542 0.1778 0.2258 -0.12890 10 12 13 55543 0.1751 0.2251 -0.12964 10 12 14 55544 0.1719 0.2240 -0.13035 10 12 15 55545 0.1684 0.2225 -0.13098 10 12 16 55546 0.1660 0.2208 -0.13153 10 12 17 55547 0.1649 0.2197 -0.13203 10 12 18 55548 0.1641 0.2188 -0.13242 10 12 19 55549 0.1632 0.2178 -0.13268 10 12 20 55550 0.1614 0.2167 -0.13282 10 12 21 55551 0.1592 0.2155 -0.13290 10 12 22 55552 0.1570 0.2144 -0.13308 10 12 23 55553 0.1548 0.2132 -0.13343 10 12 24 55554 0.1531 0.2123 -0.13399 10 12 25 55555 0.1515 0.2116 -0.13473 10 12 26 55556 0.1496 0.2106 -0.13570 10 12 27 55557 0.1473 0.2094 -0.13683 10 12 28 55558 0.1446 0.2078 -0.13795 10 12 29 55559 0.1410 0.2066 -0.13891 10 12 30 55560 0.1373 0.2053 -0.13966 10 12 31 55561 0.1341 0.2042 -0.14019 11 1 1 55562 0.1310 0.2032 -0.14054 _______________________________________________________________________ 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 = 0.0791 - 0.0488 cos A - 0.1092 sin A + 0.0080 cos C - 0.0361 sin C y = 0.3373 - 0.0968 cos A + 0.0453 sin A - 0.0361 cos C - 0.0080 sin C UT1-UTC = -0.1549 - 0.00069 (MJD - 55603) - (UT2-UT1) where A = 2*pi*(MJD-55595)/365.25 and C = 2*pi*(MJD-55595)/435. TAI-UTC(MJD 55596) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55595)**0.80 S t = 0.00025 (MJD-55595)**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 2 4 55596 0.0417 0.2031 -0.15841 2011 2 5 55597 0.0404 0.2039 -0.15920 2011 2 6 55598 0.0389 0.2047 -0.15998 2011 2 7 55599 0.0373 0.2056 -0.16071 2011 2 8 55600 0.0358 0.2064 -0.16138 2011 2 9 55601 0.0342 0.2073 -0.16196 2011 2 10 55602 0.0327 0.2082 -0.16243 2011 2 11 55603 0.0311 0.2092 -0.16279 2011 2 12 55604 0.0296 0.2102 -0.16305 2011 2 13 55605 0.0280 0.2112 -0.16328 2011 2 14 55606 0.0264 0.2123 -0.16355 2011 2 15 55607 0.0248 0.2133 -0.16397 2011 2 16 55608 0.0232 0.2144 -0.16463 2011 2 17 55609 0.0216 0.2155 -0.16558 2011 2 18 55610 0.0201 0.2167 -0.16682 2011 2 19 55611 0.0185 0.2178 -0.16828 2011 2 20 55612 0.0170 0.2190 -0.16983 2011 2 21 55613 0.0155 0.2202 -0.17132 2011 2 22 55614 0.0140 0.2214 -0.17260 2011 2 23 55615 0.0125 0.2226 -0.17362 2011 2 24 55616 0.0110 0.2239 -0.17441 2011 2 25 55617 0.0096 0.2252 -0.17502 2011 2 26 55618 0.0081 0.2265 -0.17554 2011 2 27 55619 0.0067 0.2278 -0.17604 2011 2 28 55620 0.0054 0.2292 -0.17658 2011 3 1 55621 0.0040 0.2305 -0.17722 2011 3 2 55622 0.0027 0.2319 -0.17797 2011 3 3 55623 0.0014 0.2333 -0.17885 2011 3 4 55624 0.0001 0.2347 -0.17983 2011 3 5 55625 -0.0012 0.2362 -0.18087 2011 3 6 55626 -0.0024 0.2376 -0.18193 2011 3 7 55627 -0.0036 0.2391 -0.18295 2011 3 8 55628 -0.0048 0.2406 -0.18389 2011 3 9 55629 -0.0059 0.2421 -0.18473 2011 3 10 55630 -0.0070 0.2436 -0.18545 2011 3 11 55631 -0.0081 0.2452 -0.18608 2011 3 12 55632 -0.0092 0.2467 -0.18663 2011 3 13 55633 -0.0102 0.2483 -0.18716 2011 3 14 55634 -0.0112 0.2499 -0.18776 2011 3 15 55635 -0.0122 0.2515 -0.18850 2011 3 16 55636 -0.0131 0.2531 -0.18949 2011 3 17 55637 -0.0141 0.2548 -0.19075 2011 3 18 55638 -0.0149 0.2564 -0.19228 2011 3 19 55639 -0.0158 0.2581 -0.19398 2011 3 20 55640 -0.0166 0.2598 -0.19572 2011 3 21 55641 -0.0174 0.2614 -0.19736 2011 3 22 55642 -0.0182 0.2631 -0.19877 2011 3 23 55643 -0.0189 0.2648 -0.19992 2011 3 24 55644 -0.0196 0.2666 -0.20084 2011 3 25 55645 -0.0203 0.2683 -0.20161 2011 3 26 55646 -0.0210 0.2700 -0.20233 2011 3 27 55647 -0.0216 0.2718 -0.20308 2011 3 28 55648 -0.0222 0.2735 -0.20392 2011 3 29 55649 -0.0227 0.2753 -0.20485 2011 3 30 55650 -0.0232 0.2771 -0.20590 2011 3 31 55651 -0.0237 0.2789 -0.20704 2011 4 1 55652 -0.0242 0.2807 -0.20824 2011 4 2 55653 -0.0246 0.2825 -0.20947 2011 4 3 55654 -0.0250 0.2843 -0.21068 2011 4 4 55655 -0.0254 0.2861 -0.21182 2011 4 5 55656 -0.0257 0.2879 -0.21285 2011 4 6 55657 -0.0260 0.2897 -0.21377 2011 4 7 55658 -0.0263 0.2915 -0.21457 2011 4 8 55659 -0.0265 0.2933 -0.21529 2011 4 9 55660 -0.0268 0.2952 -0.21597 2011 4 10 55661 -0.0269 0.2970 -0.21667 2011 4 11 55662 -0.0271 0.2988 -0.21747 2011 4 12 55663 -0.0272 0.3007 -0.21845 2011 4 13 55664 -0.0273 0.3025 -0.21967 2011 4 14 55665 -0.0274 0.3043 -0.22113 2011 4 15 55666 -0.0274 0.3062 -0.22280 2011 4 16 55667 -0.0274 0.3080 -0.22458 2011 4 17 55668 -0.0274 0.3099 -0.22632 2011 4 18 55669 -0.0273 0.3117 -0.22789 2011 4 19 55670 -0.0272 0.3135 -0.22920 2011 4 20 55671 -0.0271 0.3154 -0.23025 2011 4 21 55672 -0.0269 0.3172 -0.23110 2011 4 22 55673 -0.0267 0.3190 -0.23182 2011 4 23 55674 -0.0265 0.3208 -0.23253 2011 4 24 55675 -0.0263 0.3227 -0.23328 2011 4 25 55676 -0.0260 0.3245 -0.23410 2011 4 26 55677 -0.0257 0.3263 -0.23501 2011 4 27 55678 -0.0254 0.3281 -0.23599 2011 4 28 55679 -0.0250 0.3299 -0.23700 2011 4 29 55680 -0.0246 0.3317 -0.23803 2011 4 30 55681 -0.0242 0.3335 -0.23902 2011 5 1 55682 -0.0238 0.3353 -0.23993 2011 5 2 55683 -0.0233 0.3370 -0.24073 2011 5 3 55684 -0.0228 0.3388 -0.24141 2011 5 4 55685 -0.0223 0.3405 -0.24196 2011 5 5 55686 -0.0217 0.3423 -0.24241 2011 5 6 55687 -0.0212 0.3440 -0.24279 2011 5 7 55688 -0.0206 0.3458 -0.24317 2011 5 8 55689 -0.0199 0.3475 -0.24361 2011 5 9 55690 -0.0193 0.3492 -0.24418 2011 5 10 55691 -0.0186 0.3509 -0.24493 2011 5 11 55692 -0.0179 0.3526 -0.24587 2011 5 12 55693 -0.0171 0.3543 -0.24701 2011 5 13 55694 -0.0164 0.3559 -0.24826 2011 5 14 55695 -0.0156 0.3576 -0.24951 2011 5 15 55696 -0.0148 0.3592 -0.25066 2011 5 16 55697 -0.0139 0.3609 -0.25161 2011 5 17 55698 -0.0131 0.3625 -0.25231 2011 5 18 55699 -0.0122 0.3641 -0.25279 2011 5 19 55700 -0.0113 0.3657 -0.25313 2011 5 20 55701 -0.0103 0.3672 -0.25340 2011 5 21 55702 -0.0094 0.3688 -0.25371 2011 5 22 55703 -0.0084 0.3703 -0.25408 2011 5 23 55704 -0.0074 0.3719 -0.25452 2011 5 24 55705 -0.0064 0.3734 -0.25502 2011 5 25 55706 -0.0054 0.3749 -0.25557 2011 5 26 55707 -0.0043 0.3763 -0.25612 2011 5 27 55708 -0.0032 0.3778 -0.25664 2011 5 28 55709 -0.0021 0.3793 -0.25709 2011 5 29 55710 -0.0010 0.3807 -0.25743 2011 5 30 55711 0.0002 0.3821 -0.25763 2011 5 31 55712 0.0013 0.3835 -0.25771 2011 6 1 55713 0.0025 0.3849 -0.25766 2011 6 2 55714 0.0037 0.3862 -0.25753 2011 6 3 55715 0.0049 0.3876 -0.25738 2011 6 4 55716 0.0062 0.3889 -0.25728 2011 6 5 55717 0.0074 0.3902 -0.25728 2011 6 6 55718 0.0087 0.3914 -0.25744 2011 6 7 55719 0.0100 0.3927 -0.25778 2011 6 8 55720 0.0113 0.3939 -0.25829 2011 6 9 55721 0.0126 0.3952 -0.25891 2011 6 10 55722 0.0139 0.3964 -0.25954 2011 6 11 55723 0.0153 0.3975 -0.26008 2011 6 12 55724 0.0167 0.3987 -0.26046 2011 6 13 55725 0.0180 0.3998 -0.26062 2011 6 14 55726 0.0194 0.4009 -0.26057 2011 6 15 55727 0.0208 0.4020 -0.26036 2011 6 16 55728 0.0223 0.4031 -0.26007 2011 6 17 55729 0.0237 0.4041 -0.25978 2011 6 18 55730 0.0251 0.4052 -0.25957 2011 6 19 55731 0.0266 0.4062 -0.25946 2011 6 20 55732 0.0281 0.4071 -0.25943 2011 6 21 55733 0.0295 0.4081 -0.25947 2011 6 22 55734 0.0310 0.4090 -0.25953 2011 6 23 55735 0.0325 0.4099 -0.25956 2011 6 24 55736 0.0340 0.4108 -0.25954 2011 6 25 55737 0.0355 0.4117 -0.25942 2011 6 26 55738 0.0371 0.4125 -0.25917 2011 6 27 55739 0.0386 0.4134 -0.25880 2011 6 28 55740 0.0401 0.4141 -0.25831 2011 6 29 55741 0.0417 0.4149 -0.25774 2011 6 30 55742 0.0432 0.4157 -0.25713 2011 7 1 55743 0.0448 0.4164 -0.25656 2011 7 2 55744 0.0464 0.4171 -0.25610 2011 7 3 55745 0.0480 0.4178 -0.25581 2011 7 4 55746 0.0495 0.4184 -0.25572 2011 7 5 55747 0.0511 0.4190 -0.25582 2011 7 6 55748 0.0527 0.4196 -0.25605 2011 7 7 55749 0.0543 0.4202 -0.25631 2011 7 8 55750 0.0559 0.4208 -0.25650 2011 7 9 55751 0.0575 0.4213 -0.25654 2011 7 10 55752 0.0591 0.4218 -0.25637 2011 7 11 55753 0.0607 0.4223 -0.25601 2011 7 12 55754 0.0623 0.4227 -0.25549 2011 7 13 55755 0.0639 0.4231 -0.25489 2011 7 14 55756 0.0655 0.4235 -0.25429 2011 7 15 55757 0.0671 0.4239 -0.25376 2011 7 16 55758 0.0687 0.4243 -0.25334 2011 7 17 55759 0.0703 0.4246 -0.25304 2011 7 18 55760 0.0720 0.4249 -0.25285 2011 7 19 55761 0.0736 0.4252 -0.25270 2011 7 20 55762 0.0752 0.4255 -0.25258 2011 7 21 55763 0.0768 0.4257 -0.25242 2011 7 22 55764 0.0784 0.4259 -0.25218 2011 7 23 55765 0.0800 0.4261 -0.25185 2011 7 24 55766 0.0816 0.4262 -0.25140 2011 7 25 55767 0.0832 0.4264 -0.25085 2011 7 26 55768 0.0847 0.4265 -0.25022 2011 7 27 55769 0.0863 0.4266 -0.24955 2011 7 28 55770 0.0879 0.4266 -0.24890 2011 7 29 55771 0.0895 0.4267 -0.24836 2011 7 30 55772 0.0910 0.4267 -0.24800 2011 7 31 55773 0.0926 0.4267 -0.24785 2011 8 1 55774 0.0942 0.4266 -0.24793 2011 8 2 55775 0.0957 0.4266 -0.24819 2011 8 3 55776 0.0972 0.4265 -0.24853 2011 8 4 55777 0.0988 0.4264 -0.24882 2011 8 5 55778 0.1003 0.4263 -0.24896 2011 8 6 55779 0.1018 0.4261 -0.24888 2011 8 7 55780 0.1033 0.4260 -0.24857 2011 8 8 55781 0.1048 0.4258 -0.24808 2011 8 9 55782 0.1063 0.4255 -0.24747 2011 8 10 55783 0.1078 0.4253 -0.24684 2011 8 11 55784 0.1093 0.4250 -0.24625 2011 8 12 55785 0.1107 0.4248 -0.24577 2011 8 13 55786 0.1122 0.4245 -0.24543 2011 8 14 55787 0.1136 0.4241 -0.24522 2011 8 15 55788 0.1150 0.4238 -0.24512 2011 8 16 55789 0.1164 0.4234 -0.24511 2011 8 17 55790 0.1178 0.4230 -0.24512 2011 8 18 55791 0.1192 0.4226 -0.24513 2011 8 19 55792 0.1206 0.4222 -0.24508 2011 8 20 55793 0.1220 0.4217 -0.24496 2011 8 21 55794 0.1233 0.4213 -0.24475 2011 8 22 55795 0.1247 0.4208 -0.24446 2011 8 23 55796 0.1260 0.4203 -0.24413 2011 8 24 55797 0.1273 0.4197 -0.24380 2011 8 25 55798 0.1286 0.4192 -0.24354 2011 8 26 55799 0.1299 0.4186 -0.24342 2011 8 27 55800 0.1312 0.4180 -0.24349 2011 8 28 55801 0.1324 0.4174 -0.24381 2011 8 29 55802 0.1336 0.4168 -0.24434 2011 8 30 55803 0.1349 0.4161 -0.24503 2011 8 31 55804 0.1361 0.4155 -0.24575 2011 9 1 55805 0.1373 0.4148 -0.24637 2011 9 2 55806 0.1384 0.4141 -0.24680 2011 9 3 55807 0.1396 0.4134 -0.24702 2011 9 4 55808 0.1407 0.4127 -0.24707 2011 9 5 55809 0.1419 0.4119 -0.24704 2011 9 6 55810 0.1430 0.4112 -0.24701 2011 9 7 55811 0.1440 0.4104 -0.24703 2011 9 8 55812 0.1451 0.4096 -0.24713 2011 9 9 55813 0.1462 0.4088 -0.24730 2011 9 10 55814 0.1472 0.4079 -0.24753 2011 9 11 55815 0.1482 0.4071 -0.24783 2011 9 12 55816 0.1492 0.4063 -0.24820 2011 9 13 55817 0.1502 0.4054 -0.24860 2011 9 14 55818 0.1512 0.4045 -0.24900 2011 9 15 55819 0.1521 0.4036 -0.24934 2011 9 16 55820 0.1530 0.4027 -0.24959 2011 9 17 55821 0.1539 0.4018 -0.24972 2011 9 18 55822 0.1548 0.4008 -0.24974 2011 9 19 55823 0.1557 0.3999 -0.24975 2011 9 20 55824 0.1565 0.3989 -0.24978 2011 9 21 55825 0.1574 0.3980 -0.24989 2011 9 22 55826 0.1582 0.3970 -0.25014 2011 9 23 55827 0.1590 0.3960 -0.25059 2011 9 24 55828 0.1597 0.3950 -0.25124 2011 9 25 55829 0.1605 0.3940 -0.25218 2011 9 26 55830 0.1612 0.3930 -0.25333 2011 9 27 55831 0.1619 0.3919 -0.25455 2011 9 28 55832 0.1626 0.3909 -0.25572 2011 9 29 55833 0.1633 0.3898 -0.25674 2011 9 30 55834 0.1639 0.3888 -0.25753 2011 10 1 55835 0.1646 0.3877 -0.25809 2011 10 2 55836 0.1652 0.3866 -0.25847 2011 10 3 55837 0.1657 0.3855 -0.25878 2011 10 4 55838 0.1663 0.3844 -0.25911 2011 10 5 55839 0.1669 0.3833 -0.25950 2011 10 6 55840 0.1674 0.3822 -0.26006 2011 10 7 55841 0.1679 0.3811 -0.26083 2011 10 8 55842 0.1684 0.3800 -0.26168 2011 10 9 55843 0.1688 0.3789 -0.26259 2011 10 10 55844 0.1693 0.3777 -0.26356 2011 10 11 55845 0.1697 0.3766 -0.26458 2011 10 12 55846 0.1701 0.3755 -0.26559 2011 10 13 55847 0.1705 0.3743 -0.26655 2011 10 14 55848 0.1709 0.3732 -0.26741 2011 10 15 55849 0.1712 0.3720 -0.26818 2011 10 16 55850 0.1715 0.3709 -0.26884 2011 10 17 55851 0.1718 0.3697 -0.26946 2011 10 18 55852 0.1721 0.3685 -0.27005 2011 10 19 55853 0.1724 0.3674 -0.27077 2011 10 20 55854 0.1726 0.3662 -0.27165 2011 10 21 55855 0.1728 0.3650 -0.27278 2011 10 22 55856 0.1730 0.3639 -0.27419 2011 10 23 55857 0.1732 0.3627 -0.27584 2011 10 24 55858 0.1734 0.3615 -0.27766 2011 10 25 55859 0.1735 0.3603 -0.27952 2011 10 26 55860 0.1736 0.3592 -0.28130 2011 10 27 55861 0.1737 0.3580 -0.28296 2011 10 28 55862 0.1738 0.3568 -0.28451 2011 10 29 55863 0.1739 0.3556 -0.28589 2011 10 30 55864 0.1739 0.3545 -0.28707 2011 10 31 55865 0.1740 0.3533 -0.28819 2011 11 1 55866 0.1740 0.3521 -0.28938 2011 11 2 55867 0.1740 0.3509 -0.29071 2011 11 3 55868 0.1739 0.3498 -0.29218 2011 11 4 55869 0.1739 0.3486 -0.29368 2011 11 5 55870 0.1738 0.3474 -0.29518 2011 11 6 55871 0.1737 0.3463 -0.29668 2011 11 7 55872 0.1736 0.3451 -0.29811 2011 11 8 55873 0.1735 0.3440 -0.29939 2011 11 9 55874 0.1734 0.3428 -0.30055 2011 11 10 55875 0.1732 0.3417 -0.30155 2011 11 11 55876 0.1730 0.3405 -0.30242 2011 11 12 55877 0.1729 0.3394 -0.30323 2011 11 13 55878 0.1726 0.3383 -0.30400 2011 11 14 55879 0.1724 0.3371 -0.30474 2011 11 15 55880 0.1722 0.3360 -0.30547 2011 11 16 55881 0.1719 0.3349 -0.30620 2011 11 17 55882 0.1717 0.3338 -0.30696 2011 11 18 55883 0.1714 0.3327 -0.30780 2011 11 19 55884 0.1711 0.3316 -0.30877 2011 11 20 55885 0.1707 0.3305 -0.30990 2011 11 21 55886 0.1704 0.3294 -0.31115 2011 11 22 55887 0.1701 0.3283 -0.31243 2011 11 23 55888 0.1697 0.3273 -0.31369 2011 11 24 55889 0.1693 0.3262 -0.31483 2011 11 25 55890 0.1689 0.3251 -0.31584 2011 11 26 55891 0.1685 0.3241 -0.31677 2011 11 27 55892 0.1681 0.3231 -0.31767 2011 11 28 55893 0.1676 0.3220 -0.31860 2011 11 29 55894 0.1672 0.3210 -0.31957 2011 11 30 55895 0.1667 0.3200 -0.32057 2011 12 1 55896 0.1662 0.3190 -0.32165 2011 12 2 55897 0.1658 0.3180 -0.32278 2011 12 3 55898 0.1653 0.3170 -0.32395 2011 12 4 55899 0.1647 0.3160 -0.32509 2011 12 5 55900 0.1642 0.3151 -0.32614 2011 12 6 55901 0.1637 0.3141 -0.32710 2011 12 7 55902 0.1631 0.3132 -0.32796 2011 12 8 55903 0.1626 0.3122 -0.32871 2011 12 9 55904 0.1620 0.3113 -0.32934 2011 12 10 55905 0.1614 0.3104 -0.32992 2011 12 11 55906 0.1608 0.3095 -0.33045 2011 12 12 55907 0.1602 0.3086 -0.33097 2011 12 13 55908 0.1596 0.3077 -0.33152 2011 12 14 55909 0.1590 0.3068 -0.33220 2011 12 15 55910 0.1583 0.3060 -0.33301 2011 12 16 55911 0.1577 0.3051 -0.33400 2011 12 17 55912 0.1570 0.3043 -0.33516 2011 12 18 55913 0.1564 0.3035 -0.33635 2011 12 19 55914 0.1557 0.3026 -0.33752 2011 12 20 55915 0.1550 0.3018 -0.33857 2011 12 21 55916 0.1544 0.3010 -0.33941 2011 12 22 55917 0.1537 0.3003 -0.34003 2011 12 23 55918 0.1530 0.2995 -0.34049 2011 12 24 55919 0.1523 0.2987 -0.34088 2011 12 25 55920 0.1516 0.2980 -0.34134 2011 12 26 55921 0.1508 0.2973 -0.34195 2011 12 27 55922 0.1501 0.2966 -0.34263 2011 12 28 55923 0.1494 0.2959 -0.34330 2011 12 29 55924 0.1486 0.2952 -0.34395 2011 12 30 55925 0.1479 0.2945 -0.34459 2011 12 31 55926 0.1472 0.2938 -0.34515 2012 1 1 55927 0.1464 0.2932 -0.34554 2012 1 2 55928 0.1456 0.2925 -0.34582 2012 1 3 55929 0.1449 0.2919 -0.34601 2012 1 4 55930 0.1441 0.2913 -0.34613 2012 1 5 55931 0.1434 0.2907 -0.34619 2012 1 6 55932 0.1426 0.2901 -0.34621 2012 1 7 55933 0.1418 0.2896 -0.34624 2012 1 8 55934 0.1410 0.2890 -0.34631 2012 1 9 55935 0.1403 0.2884 -0.34641 2012 1 10 55936 0.1395 0.2879 -0.34662 2012 1 11 55937 0.1387 0.2874 -0.34698 2012 1 12 55938 0.1379 0.2869 -0.34759 2012 1 13 55939 0.1371 0.2864 -0.34852 2012 1 14 55940 0.1363 0.2859 -0.34957 2012 1 15 55941 0.1355 0.2855 -0.35069 2012 1 16 55942 0.1348 0.2850 -0.35181 2012 1 17 55943 0.1340 0.2846 -0.35273 2012 1 18 55944 0.1332 0.2841 -0.35343 2012 1 19 55945 0.1324 0.2837 -0.35404 2012 1 20 55946 0.1316 0.2833 -0.35456 2012 1 21 55947 0.1308 0.2829 -0.35511 2012 1 22 55948 0.1300 0.2826 -0.35573 2012 1 23 55949 0.1292 0.2822 -0.35645 2012 1 24 55950 0.1284 0.2819 -0.35736 2012 1 25 55951 0.1277 0.2815 -0.35838 2012 1 26 55952 0.1269 0.2812 -0.35946 2012 1 27 55953 0.1261 0.2809 -0.36052 2012 1 28 55954 0.1253 0.2806 -0.36160 2012 1 29 55955 0.1245 0.2803 -0.36259 2012 1 30 55956 0.1238 0.2801 -0.36348 2012 1 31 55957 0.1230 0.2798 -0.36433 2012 2 1 55958 0.1222 0.2796 -0.36513 2012 2 2 55959 0.1215 0.2793 -0.36584 2012 2 3 55960 0.1207 0.2791 -0.36652 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) 55573 -67.17 0.22 -6.20 0.34 55574 -67.21 0.22 -6.30 0.34 55575 -67.27 0.22 -6.47 0.34 55576 -67.38 1.04 -6.55 0.34 55577 -67.49 1.04 -6.47 0.34 55578 -67.55 1.04 -6.41 0.34 55579 -67.51 0.74 -6.55 0.34 55580 -67.27 0.13 -6.85 0.34 55581 -66.86 0.13 -7.04 0.34 55582 -66.48 0.13 -6.94 0.34 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 55532 -67.8 -6.5 55533 -67.7 -6.4 55534 -67.7 -6.6 55535 -67.6 -6.8 55536 -67.5 -6.9 55537 -67.3 -6.8 55538 -67.2 -6.6 55539 -66.8 -6.4 55540 -66.5 -6.4 55541 -66.5 -6.6 55542 -66.6 -6.7 55543 -66.7 -6.7 55544 -66.9 -6.7 55545 -67.2 -6.6 55546 -67.4 -6.6 55547 -67.5 -6.6 55548 -67.5 -6.5 55549 -67.5 -6.4 55550 -67.5 -6.3 55551 -67.3 -6.4 55552 -67.2 -6.6 55553 -66.9 -6.8 55554 -66.6 -6.8 55555 -66.5 -6.7 55556 -66.7 -6.5 55557 -67.0 -6.4 55558 -67.1 -6.3 55559 -67.2 -6.2 55560 -67.4 -6.0 55561 -67.6 -6.0 55562 -67.7 -6.1 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55573 0.147 0.088 -0.221 0.340 55574 0.147 0.088 -0.226 0.340 55575 0.156 0.088 -0.253 0.340 55576 0.170 0.414 -0.283 0.340 55577 0.189 0.414 -0.290 0.340 55578 0.211 0.414 -0.296 0.340 55579 0.220 0.294 -0.288 0.340 55580 0.212 0.052 -0.277 0.340 55581 0.182 0.052 -0.273 0.340 55582 0.151 0.052 -0.292 0.340 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 55532 0.42 0.02 55533 0.48 0.11 55534 0.45 0.05 55535 0.42 0.02 55536 0.37 -0.05 55537 0.35 -0.12 55538 0.29 -0.20 55539 0.37 -0.23 55540 0.43 -0.28 55541 0.41 -0.36 55542 0.38 -0.29 55543 0.39 -0.19 55544 0.38 -0.19 55545 0.32 -0.12 55546 0.27 -0.13 55547 0.25 -0.15 55548 0.26 -0.14 55549 0.28 -0.21 55550 0.29 -0.22 55551 0.34 -0.26 55552 0.28 -0.28 55553 0.24 -0.33 55554 0.24 -0.33 55555 0.25 -0.35 55556 0.24 -0.27 55557 0.22 -0.24 55558 0.24 -0.19 55559 0.22 -0.19 55560 0.17 -0.09 55561 0.15 -0.13 55562 0.16 -0.14 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.