********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 29 December 2016 Vol. XXIX No. 052 ______________________________________________________________________ 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 = -0.4 seconds beginning 17 Nov 2016 at 0000 UTC = +0.6 seconds beginning 01 Jan 2017 at 0000 UTC Beginning 1 July 2015: TAI-UTC = 36.000 000 seconds *********************************************************************** * * * 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 * * * * An additional backup mirror of the daily and Bulletin A EOP data * * is now hosted by NASA's Archive of Space Geodesy Data server at: * * ftp://cddis.gsfc.nasa.gov/pub/products/iers * * Daily EOP data will be uploaded here at 18:00 UTC, and * * Bulletin A EOP data should by available by 20:00 UTC. * * * * A positive leap second WILL be introduced in UTC on 31 Dec 2016. * * * * Distribution statement A. Approved for public release: * * distribution unlimited. * * * *********************************************************************** ________________________________________________________________________ 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 16 12 23 57745 0.09817 .00009 0.26520 .00009 -0.400399 0.000017 16 12 24 57746 0.09571 .00009 0.26470 .00009 -0.401597 0.000024 16 12 25 57747 0.09344 .00009 0.26451 .00009 -0.402686 0.000024 16 12 26 57748 0.09129 .00009 0.26455 .00009 -0.403637 0.000021 16 12 27 57749 0.08916 .00009 0.26463 .00009 -0.404575 0.000018 16 12 28 57750 0.08691 .00009 0.26458 .00010 -0.405291 0.000018 16 12 29 57751 0.08456 .00009 0.26425 .00010 -0.406080 0.000017 _______________________________________________________________________ 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 = 0.1169 - 0.0510 cos A - 0.0957 sin A + 0.0196 cos C - 0.0180 sin C y = 0.3699 - 0.0891 cos A + 0.0482 sin A - 0.0180 cos C - 0.0196 sin C UT1-UTC = 0.5882 - 0.00130 (MJD - 57759) - (UT2-UT1) where A = 2*pi*(MJD-57751)/365.25 and C = 2*pi*(MJD-57751)/435. TAI-UTC(MJD 57752) = 36.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-57751)**0.80 S t = 0.00025 (MJD-57751)**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) 2016 12 30 57752 0.0825 0.2639 -0.40693 2016 12 31 57753 0.0807 0.2636 -0.40780 2017 1 1 57754 0.0790 0.2635 0.59127 2017 1 2 57755 0.0775 0.2636 0.59022 2017 1 3 57756 0.0759 0.2639 0.58904 2017 1 4 57757 0.0744 0.2643 0.58775 2017 1 5 57758 0.0728 0.2648 0.58635 2017 1 6 57759 0.0712 0.2653 0.58490 2017 1 7 57760 0.0696 0.2658 0.58344 2017 1 8 57761 0.0680 0.2663 0.58203 2017 1 9 57762 0.0664 0.2668 0.58070 2017 1 10 57763 0.0647 0.2673 0.57946 2017 1 11 57764 0.0631 0.2678 0.57833 2017 1 12 57765 0.0614 0.2685 0.57725 2017 1 13 57766 0.0598 0.2691 0.57615 2017 1 14 57767 0.0581 0.2699 0.57498 2017 1 15 57768 0.0564 0.2706 0.57376 2017 1 16 57769 0.0548 0.2713 0.57247 2017 1 17 57770 0.0531 0.2721 0.57116 2017 1 18 57771 0.0516 0.2729 0.56984 2017 1 19 57772 0.0500 0.2737 0.56857 2017 1 20 57773 0.0484 0.2745 0.56734 2017 1 21 57774 0.0469 0.2754 0.56619 2017 1 22 57775 0.0454 0.2762 0.56512 2017 1 23 57776 0.0439 0.2771 0.56412 2017 1 24 57777 0.0425 0.2780 0.56316 2017 1 25 57778 0.0411 0.2789 0.56223 2017 1 26 57779 0.0398 0.2799 0.56128 2017 1 27 57780 0.0384 0.2810 0.56029 2017 1 28 57781 0.0371 0.2820 0.55920 2017 1 29 57782 0.0358 0.2831 0.55799 2017 1 30 57783 0.0345 0.2842 0.55663 2017 1 31 57784 0.0333 0.2853 0.55514 2017 2 1 57785 0.0320 0.2864 0.55353 2017 2 2 57786 0.0308 0.2876 0.55186 2017 2 3 57787 0.0296 0.2888 0.55018 2017 2 4 57788 0.0284 0.2900 0.54854 2017 2 5 57789 0.0272 0.2912 0.54698 2017 2 6 57790 0.0261 0.2925 0.54553 2017 2 7 57791 0.0250 0.2938 0.54417 2017 2 8 57792 0.0239 0.2950 0.54286 2017 2 9 57793 0.0228 0.2964 0.54154 2017 2 10 57794 0.0218 0.2977 0.54018 2017 2 11 57795 0.0208 0.2990 0.53873 2017 2 12 57796 0.0198 0.3004 0.53720 2017 2 13 57797 0.0188 0.3017 0.53562 2017 2 14 57798 0.0179 0.3031 0.53401 2017 2 15 57799 0.0170 0.3045 0.53242 2017 2 16 57800 0.0161 0.3059 0.53088 2017 2 17 57801 0.0153 0.3073 0.52941 2017 2 18 57802 0.0145 0.3088 0.52804 2017 2 19 57803 0.0137 0.3102 0.52675 2017 2 20 57804 0.0129 0.3117 0.52554 2017 2 21 57805 0.0122 0.3132 0.52438 2017 2 22 57806 0.0115 0.3147 0.52324 2017 2 23 57807 0.0108 0.3162 0.52207 2017 2 24 57808 0.0102 0.3177 0.52081 2017 2 25 57809 0.0095 0.3193 0.51942 2017 2 26 57810 0.0089 0.3208 0.51788 2017 2 27 57811 0.0084 0.3224 0.51615 2017 2 28 57812 0.0079 0.3239 0.51428 2017 3 1 57813 0.0074 0.3255 0.51231 2017 3 2 57814 0.0069 0.3271 0.51033 2017 3 3 57815 0.0064 0.3287 0.50841 2017 3 4 57816 0.0060 0.3303 0.50659 2017 3 5 57817 0.0057 0.3319 0.50491 2017 3 6 57818 0.0053 0.3335 0.50334 2017 3 7 57819 0.0050 0.3351 0.50184 2017 3 8 57820 0.0047 0.3367 0.50035 2017 3 9 57821 0.0044 0.3383 0.49883 2017 3 10 57822 0.0042 0.3400 0.49723 2017 3 11 57823 0.0040 0.3416 0.49553 2017 3 12 57824 0.0038 0.3433 0.49376 2017 3 13 57825 0.0037 0.3449 0.49194 2017 3 14 57826 0.0036 0.3465 0.49011 2017 3 15 57827 0.0035 0.3482 0.48832 2017 3 16 57828 0.0035 0.3498 0.48659 2017 3 17 57829 0.0035 0.3515 0.48495 2017 3 18 57830 0.0035 0.3532 0.48341 2017 3 19 57831 0.0035 0.3548 0.48196 2017 3 20 57832 0.0036 0.3565 0.48057 2017 3 21 57833 0.0037 0.3581 0.47921 2017 3 22 57834 0.0039 0.3598 0.47784 2017 3 23 57835 0.0040 0.3614 0.47641 2017 3 24 57836 0.0042 0.3631 0.47486 2017 3 25 57837 0.0045 0.3647 0.47317 2017 3 26 57838 0.0047 0.3664 0.47129 2017 3 27 57839 0.0050 0.3680 0.46924 2017 3 28 57840 0.0053 0.3696 0.46706 2017 3 29 57841 0.0057 0.3713 0.46481 2017 3 30 57842 0.0061 0.3729 0.46260 2017 3 31 57843 0.0065 0.3745 0.46050 2017 4 1 57844 0.0069 0.3761 0.45855 2017 4 2 57845 0.0074 0.3778 0.45675 2017 4 3 57846 0.0079 0.3794 0.45507 2017 4 4 57847 0.0084 0.3810 0.45344 2017 4 5 57848 0.0090 0.3826 0.45181 2017 4 6 57849 0.0096 0.3841 0.45014 2017 4 7 57850 0.0102 0.3857 0.44839 2017 4 8 57851 0.0108 0.3873 0.44657 2017 4 9 57852 0.0115 0.3888 0.44470 2017 4 10 57853 0.0122 0.3904 0.44281 2017 4 11 57854 0.0129 0.3919 0.44095 2017 4 12 57855 0.0137 0.3935 0.43915 2017 4 13 57856 0.0145 0.3950 0.43744 2017 4 14 57857 0.0153 0.3965 0.43583 2017 4 15 57858 0.0161 0.3980 0.43433 2017 4 16 57859 0.0170 0.3995 0.43293 2017 4 17 57860 0.0179 0.4009 0.43161 2017 4 18 57861 0.0188 0.4024 0.43032 2017 4 19 57862 0.0198 0.4038 0.42900 2017 4 20 57863 0.0207 0.4053 0.42762 2017 4 21 57864 0.0217 0.4067 0.42612 2017 4 22 57865 0.0227 0.4081 0.42447 2017 4 23 57866 0.0238 0.4095 0.42265 2017 4 24 57867 0.0249 0.4108 0.42067 2017 4 25 57868 0.0259 0.4122 0.41860 2017 4 26 57869 0.0271 0.4135 0.41650 2017 4 27 57870 0.0282 0.4148 0.41447 2017 4 28 57871 0.0294 0.4161 0.41259 2017 4 29 57872 0.0306 0.4174 0.41088 2017 4 30 57873 0.0318 0.4187 0.40931 2017 5 1 57874 0.0330 0.4200 0.40784 2017 5 2 57875 0.0342 0.4212 0.40640 2017 5 3 57876 0.0355 0.4224 0.40495 2017 5 4 57877 0.0368 0.4236 0.40345 2017 5 5 57878 0.0381 0.4248 0.40190 2017 5 6 57879 0.0395 0.4259 0.40032 2017 5 7 57880 0.0408 0.4271 0.39873 2017 5 8 57881 0.0422 0.4282 0.39718 2017 5 9 57882 0.0436 0.4293 0.39569 2017 5 10 57883 0.0450 0.4304 0.39430 2017 5 11 57884 0.0464 0.4314 0.39301 2017 5 12 57885 0.0479 0.4325 0.39184 2017 5 13 57886 0.0493 0.4335 0.39078 2017 5 14 57887 0.0508 0.4345 0.38980 2017 5 15 57888 0.0523 0.4354 0.38887 2017 5 16 57889 0.0538 0.4364 0.38794 2017 5 17 57890 0.0554 0.4373 0.38697 2017 5 18 57891 0.0569 0.4382 0.38592 2017 5 19 57892 0.0585 0.4391 0.38475 2017 5 20 57893 0.0600 0.4400 0.38344 2017 5 21 57894 0.0616 0.4408 0.38198 2017 5 22 57895 0.0632 0.4416 0.38039 2017 5 23 57896 0.0648 0.4424 0.37875 2017 5 24 57897 0.0665 0.4431 0.37712 2017 5 25 57898 0.0681 0.4439 0.37559 2017 5 26 57899 0.0697 0.4446 0.37422 2017 5 27 57900 0.0714 0.4453 0.37301 2017 5 28 57901 0.0731 0.4459 0.37192 2017 5 29 57902 0.0747 0.4466 0.37089 2017 5 30 57903 0.0764 0.4472 0.36987 2017 5 31 57904 0.0781 0.4478 0.36881 2017 6 1 57905 0.0798 0.4483 0.36771 2017 6 2 57906 0.0816 0.4489 0.36658 2017 6 3 57907 0.0833 0.4494 0.36545 2017 6 4 57908 0.0850 0.4498 0.36437 2017 6 5 57909 0.0867 0.4503 0.36335 2017 6 6 57910 0.0885 0.4507 0.36243 2017 6 7 57911 0.0902 0.4511 0.36162 2017 6 8 57912 0.0920 0.4515 0.36093 2017 6 9 57913 0.0937 0.4519 0.36035 2017 6 10 57914 0.0955 0.4522 0.35987 2017 6 11 57915 0.0973 0.4525 0.35945 2017 6 12 57916 0.0990 0.4527 0.35906 2017 6 13 57917 0.1008 0.4530 0.35865 2017 6 14 57918 0.1026 0.4532 0.35817 2017 6 15 57919 0.1043 0.4534 0.35760 2017 6 16 57920 0.1061 0.4536 0.35690 2017 6 17 57921 0.1079 0.4537 0.35607 2017 6 18 57922 0.1097 0.4538 0.35513 2017 6 19 57923 0.1114 0.4539 0.35411 2017 6 20 57924 0.1132 0.4540 0.35306 2017 6 21 57925 0.1150 0.4540 0.35207 2017 6 22 57926 0.1167 0.4540 0.35120 2017 6 23 57927 0.1185 0.4540 0.35047 2017 6 24 57928 0.1203 0.4539 0.34988 2017 6 25 57929 0.1220 0.4538 0.34936 2017 6 26 57930 0.1238 0.4537 0.34886 2017 6 27 57931 0.1255 0.4536 0.34833 2017 6 28 57932 0.1273 0.4534 0.34775 2017 6 29 57933 0.1290 0.4533 0.34714 2017 6 30 57934 0.1308 0.4530 0.34654 2017 7 1 57935 0.1325 0.4528 0.34599 2017 7 2 57936 0.1342 0.4525 0.34553 2017 7 3 57937 0.1359 0.4523 0.34519 2017 7 4 57938 0.1376 0.4519 0.34498 2017 7 5 57939 0.1393 0.4516 0.34492 2017 7 6 57940 0.1410 0.4512 0.34498 2017 7 7 57941 0.1427 0.4508 0.34514 2017 7 8 57942 0.1443 0.4504 0.34537 2017 7 9 57943 0.1460 0.4500 0.34560 2017 7 10 57944 0.1476 0.4495 0.34579 2017 7 11 57945 0.1493 0.4490 0.34589 2017 7 12 57946 0.1509 0.4485 0.34586 2017 7 13 57947 0.1525 0.4480 0.34567 2017 7 14 57948 0.1541 0.4474 0.34531 2017 7 15 57949 0.1557 0.4468 0.34479 2017 7 16 57950 0.1573 0.4462 0.34415 2017 7 17 57951 0.1588 0.4455 0.34342 2017 7 18 57952 0.1604 0.4449 0.34267 2017 7 19 57953 0.1619 0.4442 0.34195 2017 7 20 57954 0.1634 0.4435 0.34132 2017 7 21 57955 0.1649 0.4427 0.34078 2017 7 22 57956 0.1664 0.4420 0.34033 2017 7 23 57957 0.1678 0.4412 0.33991 2017 7 24 57958 0.1693 0.4404 0.33946 2017 7 25 57959 0.1707 0.4396 0.33897 2017 7 26 57960 0.1721 0.4387 0.33841 2017 7 27 57961 0.1735 0.4379 0.33781 2017 7 28 57962 0.1749 0.4370 0.33721 2017 7 29 57963 0.1763 0.4361 0.33664 2017 7 30 57964 0.1776 0.4352 0.33613 2017 7 31 57965 0.1789 0.4342 0.33568 2017 8 1 57966 0.1802 0.4332 0.33531 2017 8 2 57967 0.1815 0.4322 0.33501 2017 8 3 57968 0.1828 0.4312 0.33478 2017 8 4 57969 0.1840 0.4302 0.33458 2017 8 5 57970 0.1852 0.4292 0.33436 2017 8 6 57971 0.1864 0.4281 0.33406 2017 8 7 57972 0.1876 0.4270 0.33365 2017 8 8 57973 0.1887 0.4259 0.33308 2017 8 9 57974 0.1898 0.4248 0.33233 2017 8 10 57975 0.1909 0.4237 0.33142 2017 8 11 57976 0.1920 0.4225 0.33035 2017 8 12 57977 0.1931 0.4213 0.32914 2017 8 13 57978 0.1941 0.4201 0.32787 2017 8 14 57979 0.1951 0.4189 0.32666 2017 8 15 57980 0.1961 0.4177 0.32546 2017 8 16 57981 0.1971 0.4165 0.32429 2017 8 17 57982 0.1980 0.4152 0.32321 2017 8 18 57983 0.1989 0.4140 0.32219 2017 8 19 57984 0.1998 0.4127 0.32117 2017 8 20 57985 0.2007 0.4114 0.32002 2017 8 21 57986 0.2015 0.4101 0.31869 2017 8 22 57987 0.2023 0.4088 0.31724 2017 8 23 57988 0.2031 0.4075 0.31572 2017 8 24 57989 0.2038 0.4061 0.31425 2017 8 25 57990 0.2046 0.4048 0.31282 2017 8 26 57991 0.2053 0.4034 0.31148 2017 8 27 57992 0.2059 0.4021 0.31021 2017 8 28 57993 0.2066 0.4007 0.30900 2017 8 29 57994 0.2072 0.3993 0.30792 2017 8 30 57995 0.2078 0.3979 0.30700 2017 8 31 57996 0.2084 0.3965 0.30619 2017 9 1 57997 0.2089 0.3951 0.30547 2017 9 2 57998 0.2094 0.3936 0.30482 2017 9 3 57999 0.2099 0.3922 0.30414 2017 9 4 58000 0.2104 0.3908 0.30339 2017 9 5 58001 0.2108 0.3893 0.30240 2017 9 6 58002 0.2112 0.3879 0.30130 2017 9 7 58003 0.2116 0.3864 0.29996 2017 9 8 58004 0.2119 0.3849 0.29853 2017 9 9 58005 0.2122 0.3835 0.29704 2017 9 10 58006 0.2125 0.3820 0.29554 2017 9 11 58007 0.2128 0.3805 0.29414 2017 9 12 58008 0.2130 0.3790 0.29288 2017 9 13 58009 0.2132 0.3775 0.29181 2017 9 14 58010 0.2134 0.3760 0.29074 2017 9 15 58011 0.2135 0.3745 0.28972 2017 9 16 58012 0.2136 0.3730 0.28865 2017 9 17 58013 0.2137 0.3716 0.28754 2017 9 18 58014 0.2138 0.3701 0.28637 2017 9 19 58015 0.2138 0.3686 0.28507 2017 9 20 58016 0.2138 0.3671 0.28365 2017 9 21 58017 0.2138 0.3656 0.28212 2017 9 22 58018 0.2137 0.3641 0.28063 2017 9 23 58019 0.2136 0.3626 0.27926 2017 9 24 58020 0.2135 0.3611 0.27798 2017 9 25 58021 0.2134 0.3596 0.27680 2017 9 26 58022 0.2132 0.3581 0.27568 2017 9 27 58023 0.2130 0.3566 0.27477 2017 9 28 58024 0.2128 0.3551 0.27388 2017 9 29 58025 0.2125 0.3536 0.27297 2017 9 30 58026 0.2123 0.3521 0.27204 2017 10 1 58027 0.2120 0.3507 0.27094 2017 10 2 58028 0.2116 0.3492 0.26968 2017 10 3 58029 0.2113 0.3477 0.26823 2017 10 4 58030 0.2109 0.3463 0.26663 2017 10 5 58031 0.2104 0.3448 0.26487 2017 10 6 58032 0.2100 0.3434 0.26297 2017 10 7 58033 0.2095 0.3419 0.26117 2017 10 8 58034 0.2090 0.3405 0.25933 2017 10 9 58035 0.2085 0.3391 0.25772 2017 10 10 58036 0.2080 0.3377 0.25616 2017 10 11 58037 0.2074 0.3363 0.25468 2017 10 12 58038 0.2068 0.3349 0.25316 2017 10 13 58039 0.2062 0.3335 0.25161 2017 10 14 58040 0.2055 0.3321 0.24997 2017 10 15 58041 0.2048 0.3307 0.24820 2017 10 16 58042 0.2041 0.3294 0.24629 2017 10 17 58043 0.2034 0.3280 0.24431 2017 10 18 58044 0.2027 0.3267 0.24221 2017 10 19 58045 0.2019 0.3254 0.24012 2017 10 20 58046 0.2011 0.3240 0.23811 2017 10 21 58047 0.2003 0.3227 0.23632 2017 10 22 58048 0.1994 0.3215 0.23460 2017 10 23 58049 0.1986 0.3202 0.23291 2017 10 24 58050 0.1977 0.3189 0.23139 2017 10 25 58051 0.1968 0.3177 0.22982 2017 10 26 58052 0.1958 0.3165 0.22839 2017 10 27 58053 0.1949 0.3152 0.22698 2017 10 28 58054 0.1939 0.3140 0.22550 2017 10 29 58055 0.1929 0.3129 0.22392 2017 10 30 58056 0.1919 0.3117 0.22219 2017 10 31 58057 0.1908 0.3105 0.22027 2017 11 1 58058 0.1898 0.3094 0.21819 2017 11 2 58059 0.1887 0.3083 0.21605 2017 11 3 58060 0.1876 0.3072 0.21385 2017 11 4 58061 0.1865 0.3061 0.21159 2017 11 5 58062 0.1853 0.3050 0.20957 2017 11 6 58063 0.1842 0.3040 0.20760 2017 11 7 58064 0.1830 0.3029 0.20569 2017 11 8 58065 0.1818 0.3019 0.20381 2017 11 9 58066 0.1806 0.3009 0.20201 2017 11 10 58067 0.1794 0.2999 0.20020 2017 11 11 58068 0.1781 0.2990 0.19830 2017 11 12 58069 0.1769 0.2980 0.19633 2017 11 13 58070 0.1756 0.2971 0.19441 2017 11 14 58071 0.1743 0.2962 0.19252 2017 11 15 58072 0.1730 0.2953 0.19053 2017 11 16 58073 0.1717 0.2945 0.18860 2017 11 17 58074 0.1704 0.2936 0.18681 2017 11 18 58075 0.1690 0.2928 0.18511 2017 11 19 58076 0.1677 0.2920 0.18359 2017 11 20 58077 0.1663 0.2912 0.18220 2017 11 21 58078 0.1649 0.2905 0.18094 2017 11 22 58079 0.1635 0.2898 0.17972 2017 11 23 58080 0.1621 0.2891 0.17870 2017 11 24 58081 0.1607 0.2884 0.17761 2017 11 25 58082 0.1593 0.2877 0.17648 2017 11 26 58083 0.1578 0.2871 0.17520 2017 11 27 58084 0.1564 0.2864 0.17379 2017 11 28 58085 0.1549 0.2858 0.17222 2017 11 29 58086 0.1535 0.2853 0.17045 2017 11 30 58087 0.1520 0.2847 0.16864 2017 12 1 58088 0.1505 0.2842 0.16665 2017 12 2 58089 0.1490 0.2837 0.16476 2017 12 3 58090 0.1475 0.2832 0.16287 2017 12 4 58091 0.1460 0.2827 0.16109 2017 12 5 58092 0.1445 0.2823 0.15946 2017 12 6 58093 0.1430 0.2819 0.15798 2017 12 7 58094 0.1415 0.2815 0.15635 2017 12 8 58095 0.1400 0.2811 0.15489 2017 12 9 58096 0.1384 0.2808 0.15335 2017 12 10 58097 0.1369 0.2805 0.15176 2017 12 11 58098 0.1354 0.2802 0.15016 2017 12 12 58099 0.1338 0.2799 0.14853 2017 12 13 58100 0.1323 0.2797 0.14700 2017 12 14 58101 0.1308 0.2795 0.14556 2017 12 15 58102 0.1292 0.2793 0.14411 2017 12 16 58103 0.1277 0.2791 0.14276 2017 12 17 58104 0.1261 0.2789 0.14147 2017 12 18 58105 0.1246 0.2788 0.14022 2017 12 19 58106 0.1231 0.2787 0.13896 2017 12 20 58107 0.1215 0.2786 0.13769 2017 12 21 58108 0.1200 0.2786 0.13637 2017 12 22 58109 0.1184 0.2786 0.13503 2017 12 23 58110 0.1169 0.2786 0.13357 2017 12 24 58111 0.1154 0.2786 0.13198 2017 12 25 58112 0.1138 0.2786 0.13023 2017 12 26 58113 0.1123 0.2787 0.12834 2017 12 27 58114 0.1108 0.2788 0.12645 2017 12 28 58115 0.1093 0.2789 0.12440 2017 12 29 58116 0.1078 0.2791 0.12236 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) 57729 -100.08 0.30 -9.65 0.05 57730 -100.02 0.30 -9.46 0.05 57731 -100.00 0.30 -9.29 0.05 57732 -100.03 0.30 -9.15 0.15 57733 -100.18 0.13 -9.15 0.09 57734 -100.44 0.13 -9.35 0.09 57735 -100.70 0.13 -9.58 0.09 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 57729 -0.014 0.119 -0.164 0.050 57730 -0.030 0.119 -0.170 0.050 57731 -0.041 0.119 -0.183 0.050 57732 -0.052 0.119 -0.212 0.150 57733 -0.065 0.052 -0.252 0.090 57734 -0.068 0.052 -0.274 0.090 57735 -0.059 0.052 -0.251 0.090 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).