********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 18 September 2014 Vol. XXVII No. 038 ______________________________________________________________________ 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 = -0.3 seconds beginning 8 May 2014 at 0000 UTC = -0.4 seconds beginning 25 Sep 2014 at 0000 UTC Beginning 1 July 2012: TAI-UTC = 35.000 000 seconds *********************************************************************** * * * An unexpected server failure of maia.usno.navy.mil occurred on * * on September 4, 2014 at around 21:00 UTC, and a replacement was * * put in place by about 22:15 UTC the same day. However, some of * * the functionality of maia.usno.navy.mil was lost and recovery of * * all functions is on-going. A list of impacts is given below: * * * * 1) The EOP daily solution, which is normally produced no later * * than 18:00 UTC each day, was not updated on September 8, 2014. * * 2) The scheduled maia.usno.navy.mil replacement, which was * * announced earlier and scheduled to occur in mid-September, was * * implemented on September 4, 2014 due to the emergency that day. * * * * Please note that as of September 16, 2014, the email to the * * address, ser7@maia.usno.navy.mil, has been restored. * * * * Please note that daily and Bulletin A EOP data can be obtained from * * the primary Earth Orientation (EO) servers at: * * http://maia.usno.navy.mil ftp://maia.usno.navy.mil * * and from the backup EO server at: * * http://toshi.nofs.navy.mil ftp://toshi.nofs.navy.mil * * * *********************************************************************** ________________________________________________________________________ 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 14 9 12 56912 0.20470 .00009 0.31751 .00009 -0.336934 0.000010 14 9 13 56913 0.20384 .00009 0.31545 .00009 -0.337773 0.000014 14 9 14 56914 0.20334 .00009 0.31373 .00009 -0.338488 0.000009 14 9 15 56915 0.20306 .00009 0.31227 .00009 -0.339114 0.000008 14 9 16 56916 0.20266 .00009 0.31088 .00009 -0.339718 0.000007 14 9 17 56917 0.20197 .00009 0.30949 .00009 -0.340346 0.000065 14 9 18 56918 0.20111 .00009 0.30808 .00009 -0.341006 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 = 0.1118 + 0.0642 cos A - 0.0150 sin A + 0.0249 cos C - 0.0341 sin C y = 0.3539 - 0.0109 cos A - 0.0585 sin A - 0.0341 cos C - 0.0249 sin C UT1-UTC = -0.3834 - 0.00101 (MJD - 56926) - (UT2-UT1) where A = 2*pi*(MJD-56918)/365.25 and C = 2*pi*(MJD-56918)/435. TAI-UTC(MJD 56919) = 35.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-56918)**0.80 S t = 0.00025 (MJD-56918)**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) 2014 9 19 56919 0.2002 0.3065 -0.34168 2014 9 20 56920 0.1993 0.3049 -0.34238 2014 9 21 56921 0.1985 0.3033 -0.34314 2014 9 22 56922 0.1978 0.3017 -0.34397 2014 9 23 56923 0.1971 0.3001 -0.34486 2014 9 24 56924 0.1963 0.2986 -0.34578 2014 9 25 56925 0.1955 0.2971 -0.34670 2014 9 26 56926 0.1946 0.2957 -0.34762 2014 9 27 56927 0.1936 0.2943 -0.34851 2014 9 28 56928 0.1927 0.2929 -0.34939 2014 9 29 56929 0.1917 0.2915 -0.35025 2014 9 30 56930 0.1908 0.2900 -0.35113 2014 10 1 56931 0.1899 0.2886 -0.35205 2014 10 2 56932 0.1889 0.2872 -0.35303 2014 10 3 56933 0.1879 0.2858 -0.35409 2014 10 4 56934 0.1869 0.2844 -0.35530 2014 10 5 56935 0.1858 0.2831 -0.35670 2014 10 6 56936 0.1847 0.2818 -0.35827 2014 10 7 56937 0.1836 0.2805 -0.35996 2014 10 8 56938 0.1825 0.2792 -0.36166 2014 10 9 56939 0.1813 0.2779 -0.36330 2014 10 10 56940 0.1802 0.2766 -0.36479 2014 10 11 56941 0.1790 0.2754 -0.36610 2014 10 12 56942 0.1778 0.2741 -0.36725 2014 10 13 56943 0.1765 0.2729 -0.36827 2014 10 14 56944 0.1753 0.2717 -0.36924 2014 10 15 56945 0.1740 0.2706 -0.37020 2014 10 16 56946 0.1727 0.2694 -0.37120 2014 10 17 56947 0.1714 0.2683 -0.37226 2014 10 18 56948 0.1700 0.2671 -0.37341 2014 10 19 56949 0.1686 0.2660 -0.37463 2014 10 20 56950 0.1672 0.2649 -0.37593 2014 10 21 56951 0.1658 0.2639 -0.37730 2014 10 22 56952 0.1644 0.2629 -0.37870 2014 10 23 56953 0.1629 0.2618 -0.38010 2014 10 24 56954 0.1614 0.2608 -0.38150 2014 10 25 56955 0.1600 0.2599 -0.38285 2014 10 26 56956 0.1584 0.2589 -0.38415 2014 10 27 56957 0.1569 0.2580 -0.38540 2014 10 28 56958 0.1553 0.2571 -0.38663 2014 10 29 56959 0.1538 0.2562 -0.38790 2014 10 30 56960 0.1522 0.2554 -0.38924 2014 10 31 56961 0.1506 0.2545 -0.39072 2014 11 1 56962 0.1489 0.2537 -0.39236 2014 11 2 56963 0.1473 0.2529 -0.39416 2014 11 3 56964 0.1456 0.2522 -0.39606 2014 11 4 56965 0.1440 0.2514 -0.39801 2014 11 5 56966 0.1423 0.2507 -0.39993 2014 11 6 56967 0.1406 0.2501 -0.40173 2014 11 7 56968 0.1388 0.2494 -0.40339 2014 11 8 56969 0.1371 0.2488 -0.40488 2014 11 9 56970 0.1354 0.2482 -0.40625 2014 11 10 56971 0.1336 0.2476 -0.40752 2014 11 11 56972 0.1318 0.2471 -0.40874 2014 11 12 56973 0.1300 0.2465 -0.40997 2014 11 13 56974 0.1282 0.2460 -0.41123 2014 11 14 56975 0.1264 0.2456 -0.41256 2014 11 15 56976 0.1246 0.2451 -0.41396 2014 11 16 56977 0.1228 0.2447 -0.41543 2014 11 17 56978 0.1209 0.2444 -0.41696 2014 11 18 56979 0.1191 0.2440 -0.41853 2014 11 19 56980 0.1172 0.2437 -0.42011 2014 11 20 56981 0.1153 0.2434 -0.42166 2014 11 21 56982 0.1135 0.2431 -0.42316 2014 11 22 56983 0.1116 0.2429 -0.42459 2014 11 23 56984 0.1097 0.2427 -0.42594 2014 11 24 56985 0.1078 0.2425 -0.42723 2014 11 25 56986 0.1059 0.2424 -0.42851 2014 11 26 56987 0.1040 0.2422 -0.42984 2014 11 27 56988 0.1021 0.2422 -0.43125 2014 11 28 56989 0.1002 0.2421 -0.43279 2014 11 29 56990 0.0983 0.2421 -0.43445 2014 11 30 56991 0.0963 0.2421 -0.43619 2014 12 1 56992 0.0944 0.2421 -0.43797 2014 12 2 56993 0.0925 0.2422 -0.43971 2014 12 3 56994 0.0906 0.2423 -0.44135 2014 12 4 56995 0.0887 0.2424 -0.44285 2014 12 5 56996 0.0867 0.2425 -0.44420 2014 12 6 56997 0.0848 0.2427 -0.44541 2014 12 7 56998 0.0829 0.2429 -0.44651 2014 12 8 56999 0.0810 0.2432 -0.44754 2014 12 9 57000 0.0791 0.2435 -0.44856 2014 12 10 57001 0.0771 0.2438 -0.44960 2014 12 11 57002 0.0752 0.2441 -0.45068 2014 12 12 57003 0.0733 0.2445 -0.45182 2014 12 13 57004 0.0714 0.2449 -0.45302 2014 12 14 57005 0.0695 0.2453 -0.45427 2014 12 15 57006 0.0677 0.2457 -0.45556 2014 12 16 57007 0.0658 0.2462 -0.45686 2014 12 17 57008 0.0639 0.2467 -0.45814 2014 12 18 57009 0.0620 0.2473 -0.45938 2014 12 19 57010 0.0602 0.2479 -0.46055 2014 12 20 57011 0.0583 0.2485 -0.46167 2014 12 21 57012 0.0565 0.2491 -0.46273 2014 12 22 57013 0.0546 0.2498 -0.46377 2014 12 23 57014 0.0528 0.2505 -0.46485 2014 12 24 57015 0.0510 0.2512 -0.46601 2014 12 25 57016 0.0492 0.2520 -0.46730 2014 12 26 57017 0.0474 0.2527 -0.46871 2014 12 27 57018 0.0457 0.2535 -0.47021 2014 12 28 57019 0.0439 0.2544 -0.47175 2014 12 29 57020 0.0421 0.2553 -0.47324 2014 12 30 57021 0.0404 0.2562 -0.47462 2014 12 31 57022 0.0387 0.2571 -0.47587 2015 1 1 57023 0.0370 0.2580 -0.47695 2015 1 2 57024 0.0353 0.2590 -0.47789 2015 1 3 57025 0.0336 0.2600 -0.47872 2015 1 4 57026 0.0320 0.2610 -0.47947 2015 1 5 57027 0.0303 0.2621 -0.48023 2015 1 6 57028 0.0287 0.2632 -0.48101 2015 1 7 57029 0.0271 0.2643 -0.48184 2015 1 8 57030 0.0255 0.2654 -0.48273 2015 1 9 57031 0.0240 0.2666 -0.48369 2015 1 10 57032 0.0224 0.2678 -0.48471 2015 1 11 57033 0.0209 0.2690 -0.48578 2015 1 12 57034 0.0194 0.2703 -0.48688 2015 1 13 57035 0.0179 0.2715 -0.48799 2015 1 14 57036 0.0165 0.2728 -0.48907 2015 1 15 57037 0.0151 0.2741 -0.49012 2015 1 16 57038 0.0136 0.2755 -0.49113 2015 1 17 57039 0.0123 0.2768 -0.49210 2015 1 18 57040 0.0109 0.2782 -0.49305 2015 1 19 57041 0.0096 0.2796 -0.49405 2015 1 20 57042 0.0082 0.2811 -0.49514 2015 1 21 57043 0.0069 0.2825 -0.49637 2015 1 22 57044 0.0057 0.2840 -0.49778 2015 1 23 57045 0.0044 0.2855 -0.49932 2015 1 24 57046 0.0032 0.2870 -0.50095 2015 1 25 57047 0.0020 0.2885 -0.50256 2015 1 26 57048 0.0009 0.2901 -0.50409 2015 1 27 57049 -0.0002 0.2917 -0.50548 2015 1 28 57050 -0.0014 0.2933 -0.50671 2015 1 29 57051 -0.0024 0.2949 -0.50780 2015 1 30 57052 -0.0035 0.2965 -0.50876 2015 1 31 57053 -0.0045 0.2981 -0.50964 2015 2 1 57054 -0.0055 0.2998 -0.51050 2015 2 2 57055 -0.0064 0.3015 -0.51137 2015 2 3 57056 -0.0074 0.3032 -0.51229 2015 2 4 57057 -0.0083 0.3049 -0.51328 2015 2 5 57058 -0.0091 0.3066 -0.51434 2015 2 6 57059 -0.0100 0.3084 -0.51548 2015 2 7 57060 -0.0108 0.3102 -0.51667 2015 2 8 57061 -0.0115 0.3119 -0.51791 2015 2 9 57062 -0.0123 0.3137 -0.51916 2015 2 10 57063 -0.0130 0.3155 -0.52040 2015 2 11 57064 -0.0137 0.3173 -0.52160 2015 2 12 57065 -0.0143 0.3192 -0.52277 2015 2 13 57066 -0.0149 0.3210 -0.52389 2015 2 14 57067 -0.0155 0.3229 -0.52500 2015 2 15 57068 -0.0161 0.3247 -0.52614 2015 2 16 57069 -0.0166 0.3266 -0.52735 2015 2 17 57070 -0.0170 0.3285 -0.52871 2015 2 18 57071 -0.0175 0.3304 -0.53025 2015 2 19 57072 -0.0179 0.3323 -0.53199 2015 2 20 57073 -0.0183 0.3342 -0.53387 2015 2 21 57074 -0.0186 0.3361 -0.53581 2015 2 22 57075 -0.0189 0.3380 -0.53770 2015 2 23 57076 -0.0192 0.3399 -0.53948 2015 2 24 57077 -0.0194 0.3419 -0.54108 2015 2 25 57078 -0.0196 0.3438 -0.54252 2015 2 26 57079 -0.0198 0.3458 -0.54381 2015 2 27 57080 -0.0199 0.3477 -0.54501 2015 2 28 57081 -0.0200 0.3497 -0.54615 2015 3 1 57082 -0.0201 0.3516 -0.54729 2015 3 2 57083 -0.0201 0.3536 -0.54846 2015 3 3 57084 -0.0201 0.3556 -0.54970 2015 3 4 57085 -0.0201 0.3575 -0.55101 2015 3 5 57086 -0.0200 0.3595 -0.55240 2015 3 6 57087 -0.0199 0.3615 -0.55385 2015 3 7 57088 -0.0197 0.3634 -0.55534 2015 3 8 57089 -0.0195 0.3654 -0.55686 2015 3 9 57090 -0.0193 0.3674 -0.55837 2015 3 10 57091 -0.0190 0.3693 -0.55986 2015 3 11 57092 -0.0187 0.3713 -0.56129 2015 3 12 57093 -0.0184 0.3732 -0.56268 2015 3 13 57094 -0.0180 0.3752 -0.56404 2015 3 14 57095 -0.0176 0.3771 -0.56540 2015 3 15 57096 -0.0172 0.3791 -0.56681 2015 3 16 57097 -0.0167 0.3810 -0.56834 2015 3 17 57098 -0.0162 0.3830 -0.57005 2015 3 18 57099 -0.0156 0.3849 -0.57196 2015 3 19 57100 -0.0151 0.3868 -0.57406 2015 3 20 57101 -0.0144 0.3887 -0.57629 2015 3 21 57102 -0.0138 0.3906 -0.57856 2015 3 22 57103 -0.0131 0.3925 -0.58076 2015 3 23 57104 -0.0124 0.3944 -0.58282 2015 3 24 57105 -0.0116 0.3963 -0.58470 2015 3 25 57106 -0.0108 0.3982 -0.58642 2015 3 26 57107 -0.0100 0.4001 -0.58799 2015 3 27 57108 -0.0091 0.4019 -0.58946 2015 3 28 57109 -0.0082 0.4037 -0.59087 2015 3 29 57110 -0.0073 0.4056 -0.59226 2015 3 30 57111 -0.0063 0.4074 -0.59364 2015 3 31 57112 -0.0053 0.4092 -0.59503 2015 4 1 57113 -0.0043 0.4110 -0.59643 2015 4 2 57114 -0.0032 0.4127 -0.59783 2015 4 3 57115 -0.0021 0.4145 -0.59923 2015 4 4 57116 -0.0010 0.4162 -0.60062 2015 4 5 57117 0.0002 0.4180 -0.60197 2015 4 6 57118 0.0013 0.4197 -0.60326 2015 4 7 57119 0.0026 0.4214 -0.60448 2015 4 8 57120 0.0038 0.4230 -0.60563 2015 4 9 57121 0.0051 0.4247 -0.60670 2015 4 10 57122 0.0064 0.4263 -0.60774 2015 4 11 57123 0.0078 0.4280 -0.60879 2015 4 12 57124 0.0092 0.4296 -0.60993 2015 4 13 57125 0.0106 0.4311 -0.61121 2015 4 14 57126 0.0120 0.4327 -0.61270 2015 4 15 57127 0.0135 0.4342 -0.61442 2015 4 16 57128 0.0150 0.4358 -0.61633 2015 4 17 57129 0.0165 0.4372 -0.61836 2015 4 18 57130 0.0181 0.4387 -0.62041 2015 4 19 57131 0.0196 0.4402 -0.62237 2015 4 20 57132 0.0213 0.4416 -0.62417 2015 4 21 57133 0.0229 0.4430 -0.62580 2015 4 22 57134 0.0246 0.4444 -0.62727 2015 4 23 57135 0.0262 0.4457 -0.62864 2015 4 24 57136 0.0280 0.4471 -0.62994 2015 4 25 57137 0.0297 0.4484 -0.63121 2015 4 26 57138 0.0315 0.4497 -0.63245 2015 4 27 57139 0.0332 0.4509 -0.63369 2015 4 28 57140 0.0351 0.4522 -0.63494 2015 4 29 57141 0.0369 0.4534 -0.63620 2015 4 30 57142 0.0387 0.4545 -0.63748 2015 5 1 57143 0.0406 0.4557 -0.63877 2015 5 2 57144 0.0425 0.4568 -0.64008 2015 5 3 57145 0.0445 0.4579 -0.64136 2015 5 4 57146 0.0464 0.4590 -0.64261 2015 5 5 57147 0.0484 0.4600 -0.64376 2015 5 6 57148 0.0503 0.4610 -0.64482 2015 5 7 57149 0.0524 0.4620 -0.64581 2015 5 8 57150 0.0544 0.4629 -0.64673 2015 5 9 57151 0.0564 0.4638 -0.64767 2015 5 10 57152 0.0585 0.4647 -0.64865 2015 5 11 57153 0.0605 0.4656 -0.64970 2015 5 12 57154 0.0626 0.4664 -0.65088 2015 5 13 57155 0.0648 0.4672 -0.65212 2015 5 14 57156 0.0669 0.4679 -0.65343 2015 5 15 57157 0.0690 0.4687 -0.65474 2015 5 16 57158 0.0712 0.4694 -0.65594 2015 5 17 57159 0.0733 0.4700 -0.65698 2015 5 18 57160 0.0755 0.4706 -0.65790 2015 5 19 57161 0.0777 0.4712 -0.65867 2015 5 20 57162 0.0799 0.4718 -0.65933 2015 5 21 57163 0.0821 0.4723 -0.65991 2015 5 22 57164 0.0844 0.4728 -0.66051 2015 5 23 57165 0.0866 0.4733 -0.66118 2015 5 24 57166 0.0888 0.4737 -0.66189 2015 5 25 57167 0.0911 0.4741 -0.66263 2015 5 26 57168 0.0934 0.4745 -0.66340 2015 5 27 57169 0.0956 0.4748 -0.66422 2015 5 28 57170 0.0979 0.4751 -0.66511 2015 5 29 57171 0.1002 0.4754 -0.66598 2015 5 30 57172 0.1025 0.4756 -0.66685 2015 5 31 57173 0.1048 0.4758 -0.66773 2015 6 1 57174 0.1071 0.4759 -0.66853 2015 6 2 57175 0.1094 0.4760 -0.66925 2015 6 3 57176 0.1117 0.4761 -0.66991 2015 6 4 57177 0.1140 0.4762 -0.67052 2015 6 5 57178 0.1163 0.4762 -0.67108 2015 6 6 57179 0.1186 0.4762 -0.67169 2015 6 7 57180 0.1209 0.4761 -0.67234 2015 6 8 57181 0.1233 0.4760 -0.67310 2015 6 9 57182 0.1256 0.4759 -0.67394 2015 6 10 57183 0.1279 0.4757 -0.67484 2015 6 11 57184 0.1302 0.4755 -0.67571 2015 6 12 57185 0.1325 0.4753 -0.67656 2015 6 13 57186 0.1348 0.4750 -0.67730 2015 6 14 57187 0.1371 0.4747 -0.67785 2015 6 15 57188 0.1394 0.4744 -0.67825 2015 6 16 57189 0.1417 0.4740 -0.67855 2015 6 17 57190 0.1440 0.4736 -0.67878 2015 6 18 57191 0.1463 0.4731 -0.67898 2015 6 19 57192 0.1486 0.4726 -0.67918 2015 6 20 57193 0.1508 0.4721 -0.67949 2015 6 21 57194 0.1531 0.4716 -0.67988 2015 6 22 57195 0.1553 0.4710 -0.68036 2015 6 23 57196 0.1576 0.4703 -0.68095 2015 6 24 57197 0.1598 0.4697 -0.68160 2015 6 25 57198 0.1620 0.4690 -0.68226 2015 6 26 57199 0.1642 0.4683 -0.68286 2015 6 27 57200 0.1664 0.4675 -0.68339 2015 6 28 57201 0.1686 0.4667 -0.68379 2015 6 29 57202 0.1708 0.4659 -0.68412 2015 6 30 57203 0.1730 0.4650 -0.68438 2015 7 1 57204 0.1751 0.4641 -0.68457 2015 7 2 57205 0.1772 0.4632 -0.68473 2015 7 3 57206 0.1793 0.4622 -0.68491 2015 7 4 57207 0.1814 0.4613 -0.68514 2015 7 5 57208 0.1835 0.4602 -0.68548 2015 7 6 57209 0.1856 0.4592 -0.68592 2015 7 7 57210 0.1876 0.4581 -0.68646 2015 7 8 57211 0.1896 0.4569 -0.68704 2015 7 9 57212 0.1917 0.4558 -0.68757 2015 7 10 57213 0.1936 0.4546 -0.68801 2015 7 11 57214 0.1956 0.4534 -0.68828 2015 7 12 57215 0.1976 0.4521 -0.68836 2015 7 13 57216 0.1995 0.4509 -0.68829 2015 7 14 57217 0.2014 0.4496 -0.68816 2015 7 15 57218 0.2033 0.4482 -0.68800 2015 7 16 57219 0.2051 0.4469 -0.68786 2015 7 17 57220 0.2070 0.4455 -0.68778 2015 7 18 57221 0.2088 0.4440 -0.68774 2015 7 19 57222 0.2105 0.4426 -0.68779 2015 7 20 57223 0.2123 0.4411 -0.68788 2015 7 21 57224 0.2140 0.4396 -0.68805 2015 7 22 57225 0.2158 0.4380 -0.68824 2015 7 23 57226 0.2174 0.4365 -0.68842 2015 7 24 57227 0.2191 0.4349 -0.68851 2015 7 25 57228 0.2207 0.4333 -0.68861 2015 7 26 57229 0.2223 0.4316 -0.68867 2015 7 27 57230 0.2239 0.4300 -0.68868 2015 7 28 57231 0.2254 0.4283 -0.68866 2015 7 29 57232 0.2269 0.4266 -0.68869 2015 7 30 57233 0.2284 0.4248 -0.68882 2015 7 31 57234 0.2299 0.4231 -0.68900 2015 8 1 57235 0.2313 0.4213 -0.68931 2015 8 2 57236 0.2327 0.4195 -0.68982 2015 8 3 57237 0.2340 0.4176 -0.69046 2015 8 4 57238 0.2354 0.4158 -0.69115 2015 8 5 57239 0.2367 0.4139 -0.69179 2015 8 6 57240 0.2379 0.4120 -0.69229 2015 8 7 57241 0.2391 0.4101 -0.69263 2015 8 8 57242 0.2403 0.4081 -0.69284 2015 8 9 57243 0.2415 0.4062 -0.69290 2015 8 10 57244 0.2426 0.4042 -0.69284 2015 8 11 57245 0.2437 0.4022 -0.69268 2015 8 12 57246 0.2448 0.4002 -0.69248 2015 8 13 57247 0.2458 0.3982 -0.69232 2015 8 14 57248 0.2468 0.3962 -0.69224 2015 8 15 57249 0.2477 0.3941 -0.69231 2015 8 16 57250 0.2486 0.3920 -0.69250 2015 8 17 57251 0.2495 0.3899 -0.69281 2015 8 18 57252 0.2504 0.3878 -0.69310 2015 8 19 57253 0.2512 0.3857 -0.69336 2015 8 20 57254 0.2519 0.3836 -0.69355 2015 8 21 57255 0.2526 0.3814 -0.69373 2015 8 22 57256 0.2533 0.3793 -0.69398 2015 8 23 57257 0.2540 0.3771 -0.69427 2015 8 24 57258 0.2546 0.3749 -0.69455 2015 8 25 57259 0.2552 0.3728 -0.69486 2015 8 26 57260 0.2557 0.3706 -0.69519 2015 8 27 57261 0.2562 0.3683 -0.69561 2015 8 28 57262 0.2567 0.3661 -0.69622 2015 8 29 57263 0.2571 0.3639 -0.69693 2015 8 30 57264 0.2575 0.3617 -0.69775 2015 8 31 57265 0.2578 0.3594 -0.69870 2015 9 1 57266 0.2581 0.3572 -0.69969 2015 9 2 57267 0.2584 0.3549 -0.70064 2015 9 3 57268 0.2586 0.3527 -0.70149 2015 9 4 57269 0.2588 0.3504 -0.70221 2015 9 5 57270 0.2589 0.3482 -0.70281 2015 9 6 57271 0.2590 0.3459 -0.70326 2015 9 7 57272 0.2591 0.3436 -0.70365 2015 9 8 57273 0.2591 0.3414 -0.70402 2015 9 9 57274 0.2591 0.3391 -0.70443 2015 9 10 57275 0.2590 0.3368 -0.70490 2015 9 11 57276 0.2589 0.3345 -0.70552 2015 9 12 57277 0.2588 0.3323 -0.70622 2015 9 13 57278 0.2586 0.3300 -0.70703 2015 9 14 57279 0.2584 0.3277 -0.70789 2015 9 15 57280 0.2582 0.3255 -0.70871 2015 9 16 57281 0.2579 0.3232 -0.70950 2015 9 17 57282 0.2575 0.3209 -0.71024 2015 9 18 57283 0.2571 0.3187 -0.71092 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) 56896 -92.84 0.30 -13.26 0.06 56897 -93.01 0.30 -13.46 0.06 56898 -93.02 0.30 -13.63 0.06 56899 -92.89 0.28 -13.70 0.10 56900 -92.87 0.28 -13.73 0.10 56901 -93.13 0.30 -13.77 0.05 56902 -93.53 0.30 -13.82 0.04 56903 -93.78 0.30 -13.86 0.04 56904 -93.77 0.30 -13.91 0.04 56905 -93.62 0.30 -13.99 0.04 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 56896 0.033 0.119 -0.236 0.060 56897 0.019 0.119 -0.260 0.060 56898 0.001 0.119 -0.278 0.060 56899 -0.007 0.111 -0.288 0.100 56900 -0.012 0.111 -0.306 0.100 56901 -0.015 0.119 -0.320 0.050 56902 -0.008 0.119 -0.338 0.040 56903 0.005 0.119 -0.368 0.040 56904 0.006 0.119 -0.402 0.040 56905 0.007 0.119 -0.433 0.040 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 (2010).