********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 8 December 2016 Vol. XXIX 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 = -0.4 seconds beginning 17 Nov 2016 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 2 57724 0.12801 .00009 0.26704 .00009 -0.370891 0.000015 16 12 3 57725 0.12611 .00009 0.26682 .00009 -0.372120 0.000013 16 12 4 57726 0.12425 .00009 0.26654 .00009 -0.373317 0.000010 16 12 5 57727 0.12249 .00009 0.26625 .00009 -0.374648 0.000009 16 12 6 57728 0.12089 .00009 0.26596 .00009 -0.376067 0.000009 16 12 7 57729 0.11965 .00009 0.26569 .00009 -0.377541 0.000009 16 12 8 57730 0.11868 .00009 0.26556 .00009 -0.379145 0.000007 _______________________________________________________________________ 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 = 0.1113 - 0.0077 cos A - 0.1083 sin A + 0.0164 cos C - 0.0147 sin C y = 0.3793 - 0.1015 cos A + 0.0049 sin A - 0.0147 cos C - 0.0164 sin C UT1-UTC = -0.3867 - 0.00133 (MJD - 57738) - (UT2-UT1) where A = 2*pi*(MJD-57730)/365.25 and C = 2*pi*(MJD-57730)/435. TAI-UTC(MJD 57731) = 36.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-57730)**0.80 S t = 0.00025 (MJD-57730)**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 9 57731 0.1175 0.2656 -0.38087 2016 12 10 57732 0.1163 0.2657 -0.38265 2016 12 11 57733 0.1147 0.2658 -0.38439 2016 12 12 57734 0.1131 0.2659 -0.38601 2016 12 13 57735 0.1113 0.2659 -0.38746 2016 12 14 57736 0.1096 0.2660 -0.38873 2016 12 15 57737 0.1080 0.2661 -0.38990 2016 12 16 57738 0.1063 0.2663 -0.39103 2016 12 17 57739 0.1046 0.2665 -0.39217 2016 12 18 57740 0.1028 0.2666 -0.39335 2016 12 19 57741 0.1011 0.2668 -0.39462 2016 12 20 57742 0.0994 0.2670 -0.39594 2016 12 21 57743 0.0977 0.2672 -0.39728 2016 12 22 57744 0.0960 0.2674 -0.39863 2016 12 23 57745 0.0943 0.2677 -0.39997 2016 12 24 57746 0.0926 0.2680 -0.40128 2016 12 25 57747 0.0910 0.2683 -0.40250 2016 12 26 57748 0.0893 0.2686 -0.40364 2016 12 27 57749 0.0877 0.2690 -0.40469 2016 12 28 57750 0.0861 0.2694 -0.40567 2016 12 29 57751 0.0845 0.2698 -0.40659 2016 12 30 57752 0.0829 0.2703 -0.40748 2016 12 31 57753 0.0813 0.2708 -0.40840 2017 1 1 57754 0.0797 0.2713 0.59061 2017 1 2 57755 0.0781 0.2718 0.58949 2017 1 3 57756 0.0765 0.2724 0.58821 2017 1 4 57757 0.0749 0.2730 0.58679 2017 1 5 57758 0.0733 0.2736 0.58525 2017 1 6 57759 0.0718 0.2742 0.58363 2017 1 7 57760 0.0702 0.2748 0.58202 2017 1 8 57761 0.0687 0.2755 0.58046 2017 1 9 57762 0.0672 0.2762 0.57901 2017 1 10 57763 0.0657 0.2769 0.57769 2017 1 11 57764 0.0642 0.2776 0.57648 2017 1 12 57765 0.0627 0.2784 0.57532 2017 1 13 57766 0.0613 0.2792 0.57415 2017 1 14 57767 0.0598 0.2800 0.57292 2017 1 15 57768 0.0584 0.2808 0.57163 2017 1 16 57769 0.0570 0.2816 0.57027 2017 1 17 57770 0.0556 0.2825 0.56890 2017 1 18 57771 0.0543 0.2834 0.56753 2017 1 19 57772 0.0529 0.2843 0.56620 2017 1 20 57773 0.0516 0.2852 0.56494 2017 1 21 57774 0.0503 0.2862 0.56377 2017 1 22 57775 0.0490 0.2872 0.56270 2017 1 23 57776 0.0477 0.2882 0.56171 2017 1 24 57777 0.0465 0.2892 0.56078 2017 1 25 57778 0.0452 0.2902 0.55990 2017 1 26 57779 0.0440 0.2913 0.55901 2017 1 27 57780 0.0428 0.2924 0.55807 2017 1 28 57781 0.0416 0.2935 0.55705 2017 1 29 57782 0.0405 0.2946 0.55590 2017 1 30 57783 0.0394 0.2957 0.55461 2017 1 31 57784 0.0383 0.2968 0.55316 2017 2 1 57785 0.0372 0.2980 0.55160 2017 2 2 57786 0.0361 0.2992 0.54998 2017 2 3 57787 0.0351 0.3004 0.54834 2017 2 4 57788 0.0341 0.3016 0.54676 2017 2 5 57789 0.0331 0.3028 0.54526 2017 2 6 57790 0.0321 0.3041 0.54387 2017 2 7 57791 0.0312 0.3054 0.54257 2017 2 8 57792 0.0303 0.3066 0.54132 2017 2 9 57793 0.0294 0.3079 0.54007 2017 2 10 57794 0.0285 0.3092 0.53875 2017 2 11 57795 0.0277 0.3106 0.53735 2017 2 12 57796 0.0269 0.3119 0.53585 2017 2 13 57797 0.0261 0.3133 0.53429 2017 2 14 57798 0.0253 0.3146 0.53271 2017 2 15 57799 0.0246 0.3160 0.53114 2017 2 16 57800 0.0239 0.3174 0.52962 2017 2 17 57801 0.0232 0.3188 0.52817 2017 2 18 57802 0.0225 0.3202 0.52681 2017 2 19 57803 0.0219 0.3216 0.52552 2017 2 20 57804 0.0213 0.3230 0.52430 2017 2 21 57805 0.0207 0.3245 0.52312 2017 2 22 57806 0.0202 0.3259 0.52195 2017 2 23 57807 0.0197 0.3274 0.52074 2017 2 24 57808 0.0192 0.3289 0.51945 2017 2 25 57809 0.0187 0.3303 0.51803 2017 2 26 57810 0.0183 0.3318 0.51644 2017 2 27 57811 0.0179 0.3333 0.51469 2017 2 28 57812 0.0175 0.3348 0.51279 2017 3 1 57813 0.0172 0.3363 0.51080 2017 3 2 57814 0.0169 0.3378 0.50879 2017 3 3 57815 0.0166 0.3393 0.50683 2017 3 4 57816 0.0163 0.3409 0.50498 2017 3 5 57817 0.0161 0.3424 0.50326 2017 3 6 57818 0.0159 0.3439 0.50164 2017 3 7 57819 0.0157 0.3455 0.50010 2017 3 8 57820 0.0155 0.3470 0.49857 2017 3 9 57821 0.0154 0.3485 0.49699 2017 3 10 57822 0.0153 0.3501 0.49533 2017 3 11 57823 0.0153 0.3516 0.49357 2017 3 12 57824 0.0153 0.3532 0.49173 2017 3 13 57825 0.0153 0.3547 0.48984 2017 3 14 57826 0.0153 0.3563 0.48795 2017 3 15 57827 0.0153 0.3578 0.48609 2017 3 16 57828 0.0154 0.3594 0.48430 2017 3 17 57829 0.0155 0.3609 0.48261 2017 3 18 57830 0.0157 0.3625 0.48101 2017 3 19 57831 0.0159 0.3640 0.47950 2017 3 20 57832 0.0161 0.3655 0.47806 2017 3 21 57833 0.0163 0.3671 0.47664 2017 3 22 57834 0.0166 0.3686 0.47522 2017 3 23 57835 0.0168 0.3702 0.47373 2017 3 24 57836 0.0172 0.3717 0.47213 2017 3 25 57837 0.0175 0.3732 0.47037 2017 3 26 57838 0.0179 0.3747 0.46843 2017 3 27 57839 0.0183 0.3763 0.46635 2017 3 28 57840 0.0187 0.3778 0.46413 2017 3 29 57841 0.0192 0.3793 0.46185 2017 3 30 57842 0.0197 0.3808 0.45960 2017 3 31 57843 0.0202 0.3823 0.45745 2017 4 1 57844 0.0207 0.3837 0.45544 2017 4 2 57845 0.0213 0.3852 0.45358 2017 4 3 57846 0.0219 0.3867 0.45183 2017 4 4 57847 0.0225 0.3881 0.45014 2017 4 5 57848 0.0232 0.3896 0.44844 2017 4 6 57849 0.0238 0.3910 0.44669 2017 4 7 57850 0.0245 0.3925 0.44487 2017 4 8 57851 0.0253 0.3939 0.44298 2017 4 9 57852 0.0260 0.3953 0.44104 2017 4 10 57853 0.0268 0.3967 0.43910 2017 4 11 57854 0.0276 0.3981 0.43718 2017 4 12 57855 0.0284 0.3995 0.43533 2017 4 13 57856 0.0293 0.4008 0.43357 2017 4 14 57857 0.0302 0.4022 0.43191 2017 4 15 57858 0.0311 0.4035 0.43037 2017 4 16 57859 0.0320 0.4048 0.42891 2017 4 17 57860 0.0330 0.4061 0.42752 2017 4 18 57861 0.0339 0.4074 0.42616 2017 4 19 57862 0.0349 0.4087 0.42477 2017 4 20 57863 0.0360 0.4100 0.42331 2017 4 21 57864 0.0370 0.4112 0.42173 2017 4 22 57865 0.0381 0.4125 0.42001 2017 4 23 57866 0.0392 0.4137 0.41811 2017 4 24 57867 0.0403 0.4149 0.41606 2017 4 25 57868 0.0414 0.4161 0.41391 2017 4 26 57869 0.0426 0.4172 0.41174 2017 4 27 57870 0.0437 0.4184 0.40964 2017 4 28 57871 0.0449 0.4195 0.40768 2017 4 29 57872 0.0462 0.4206 0.40590 2017 4 30 57873 0.0474 0.4217 0.40426 2017 5 1 57874 0.0486 0.4228 0.40272 2017 5 2 57875 0.0499 0.4239 0.40122 2017 5 3 57876 0.0512 0.4249 0.39971 2017 5 4 57877 0.0525 0.4259 0.39815 2017 5 5 57878 0.0538 0.4269 0.39655 2017 5 6 57879 0.0552 0.4279 0.39491 2017 5 7 57880 0.0566 0.4289 0.39328 2017 5 8 57881 0.0579 0.4298 0.39168 2017 5 9 57882 0.0593 0.4307 0.39015 2017 5 10 57883 0.0607 0.4316 0.38871 2017 5 11 57884 0.0622 0.4325 0.38739 2017 5 12 57885 0.0636 0.4334 0.38619 2017 5 13 57886 0.0651 0.4342 0.38509 2017 5 14 57887 0.0665 0.4350 0.38408 2017 5 15 57888 0.0680 0.4358 0.38312 2017 5 16 57889 0.0695 0.4366 0.38217 2017 5 17 57890 0.0710 0.4373 0.38118 2017 5 18 57891 0.0726 0.4380 0.38011 2017 5 19 57892 0.0741 0.4387 0.37892 2017 5 20 57893 0.0756 0.4394 0.37759 2017 5 21 57894 0.0772 0.4401 0.37612 2017 5 22 57895 0.0788 0.4407 0.37452 2017 5 23 57896 0.0803 0.4413 0.37286 2017 5 24 57897 0.0819 0.4419 0.37121 2017 5 25 57898 0.0835 0.4424 0.36967 2017 5 26 57899 0.0851 0.4429 0.36829 2017 5 27 57900 0.0867 0.4435 0.36707 2017 5 28 57901 0.0884 0.4439 0.36597 2017 5 29 57902 0.0900 0.4444 0.36493 2017 5 30 57903 0.0916 0.4448 0.36390 2017 5 31 57904 0.0933 0.4452 0.36283 2017 6 1 57905 0.0949 0.4456 0.36172 2017 6 2 57906 0.0966 0.4460 0.36060 2017 6 3 57907 0.0982 0.4463 0.35947 2017 6 4 57908 0.0999 0.4466 0.35840 2017 6 5 57909 0.1015 0.4469 0.35739 2017 6 6 57910 0.1032 0.4471 0.35649 2017 6 7 57911 0.1049 0.4474 0.35572 2017 6 8 57912 0.1066 0.4476 0.35507 2017 6 9 57913 0.1082 0.4477 0.35455 2017 6 10 57914 0.1099 0.4479 0.35415 2017 6 11 57915 0.1116 0.4480 0.35382 2017 6 12 57916 0.1133 0.4481 0.35353 2017 6 13 57917 0.1149 0.4482 0.35324 2017 6 14 57918 0.1166 0.4482 0.35291 2017 6 15 57919 0.1183 0.4483 0.35248 2017 6 16 57920 0.1200 0.4483 0.35194 2017 6 17 57921 0.1216 0.4482 0.35127 2017 6 18 57922 0.1233 0.4482 0.35048 2017 6 19 57923 0.1250 0.4481 0.34958 2017 6 20 57924 0.1266 0.4480 0.34866 2017 6 21 57925 0.1283 0.4479 0.34776 2017 6 22 57926 0.1299 0.4477 0.34695 2017 6 23 57927 0.1316 0.4475 0.34626 2017 6 24 57928 0.1332 0.4473 0.34567 2017 6 25 57929 0.1349 0.4471 0.34514 2017 6 26 57930 0.1365 0.4468 0.34460 2017 6 27 57931 0.1381 0.4465 0.34399 2017 6 28 57932 0.1397 0.4462 0.34329 2017 6 29 57933 0.1414 0.4459 0.34250 2017 6 30 57934 0.1430 0.4455 0.34163 2017 7 1 57935 0.1445 0.4452 0.34074 2017 7 2 57936 0.1461 0.4447 0.33985 2017 7 3 57937 0.1477 0.4443 0.33901 2017 7 4 57938 0.1493 0.4439 0.33823 2017 7 5 57939 0.1508 0.4434 0.33754 2017 7 6 57940 0.1524 0.4429 0.33692 2017 7 7 57941 0.1539 0.4423 0.33637 2017 7 8 57942 0.1554 0.4418 0.33586 2017 7 9 57943 0.1569 0.4412 0.33534 2017 7 10 57944 0.1584 0.4406 0.33476 2017 7 11 57945 0.1599 0.4400 0.33410 2017 7 12 57946 0.1614 0.4394 0.33335 2017 7 13 57947 0.1628 0.4387 0.33250 2017 7 14 57948 0.1642 0.4380 0.33157 2017 7 15 57949 0.1657 0.4373 0.33056 2017 7 16 57950 0.1671 0.4366 0.32947 2017 7 17 57951 0.1685 0.4358 0.32831 2017 7 18 57952 0.1698 0.4350 0.32719 2017 7 19 57953 0.1712 0.4342 0.32619 2017 7 20 57954 0.1725 0.4334 0.32536 2017 7 21 57955 0.1739 0.4326 0.32470 2017 7 22 57956 0.1752 0.4317 0.32418 2017 7 23 57957 0.1765 0.4308 0.32372 2017 7 24 57958 0.1777 0.4300 0.32324 2017 7 25 57959 0.1790 0.4290 0.32258 2017 7 26 57960 0.1802 0.4281 0.32188 2017 7 27 57961 0.1814 0.4271 0.32107 2017 7 28 57962 0.1826 0.4262 0.32027 2017 7 29 57963 0.1838 0.4252 0.31953 2017 7 30 57964 0.1850 0.4242 0.31886 2017 7 31 57965 0.1861 0.4231 0.31834 2017 8 1 57966 0.1872 0.4221 0.31795 2017 8 2 57967 0.1883 0.4210 0.31776 2017 8 3 57968 0.1894 0.4199 0.31757 2017 8 4 57969 0.1904 0.4188 0.31746 2017 8 5 57970 0.1914 0.4177 0.31736 2017 8 6 57971 0.1924 0.4166 0.31727 2017 8 7 57972 0.1934 0.4155 0.31719 2017 8 8 57973 0.1944 0.4143 0.31698 2017 8 9 57974 0.1953 0.4131 0.31660 2017 8 10 57975 0.1962 0.4119 0.31598 2017 8 11 57976 0.1971 0.4107 0.31524 2017 8 12 57977 0.1979 0.4095 0.31444 2017 8 13 57978 0.1988 0.4083 0.31359 2017 8 14 57979 0.1996 0.4070 0.31274 2017 8 15 57980 0.2004 0.4058 0.31191 2017 8 16 57981 0.2011 0.4045 0.31129 2017 8 17 57982 0.2019 0.4032 0.31074 2017 8 18 57983 0.2026 0.4020 0.31022 2017 8 19 57984 0.2033 0.4007 0.30974 2017 8 20 57985 0.2039 0.3993 0.30913 2017 8 21 57986 0.2046 0.3980 0.30839 2017 8 22 57987 0.2052 0.3967 0.30750 2017 8 23 57988 0.2058 0.3954 0.30653 2017 8 24 57989 0.2063 0.3940 0.30550 2017 8 25 57990 0.2068 0.3926 0.30445 2017 8 26 57991 0.2073 0.3913 0.30357 2017 8 27 57992 0.2078 0.3899 0.30269 2017 8 28 57993 0.2083 0.3885 0.30204 2017 8 29 57994 0.2087 0.3871 0.30141 2017 8 30 57995 0.2091 0.3857 0.30083 2017 8 31 57996 0.2094 0.3843 0.30020 2017 9 1 57997 0.2098 0.3829 0.29957 2017 9 2 57998 0.2101 0.3815 0.29887 2017 9 3 57999 0.2104 0.3801 0.29809 2017 9 4 58000 0.2106 0.3787 0.29716 2017 9 5 58001 0.2109 0.3773 0.29609 2017 9 6 58002 0.2111 0.3759 0.29479 2017 9 7 58003 0.2112 0.3744 0.29332 2017 9 8 58004 0.2114 0.3730 0.29175 2017 9 9 58005 0.2115 0.3716 0.29022 2017 9 10 58006 0.2116 0.3701 0.28865 2017 9 11 58007 0.2116 0.3687 0.28705 2017 9 12 58008 0.2117 0.3672 0.28562 2017 9 13 58009 0.2117 0.3658 0.28416 2017 9 14 58010 0.2117 0.3644 0.28289 2017 9 15 58011 0.2116 0.3629 0.28168 2017 9 16 58012 0.2115 0.3615 0.28042 2017 9 17 58013 0.2114 0.3601 0.27907 2017 9 18 58014 0.2113 0.3586 0.27761 2017 9 19 58015 0.2111 0.3572 0.27597 2017 9 20 58016 0.2110 0.3558 0.27426 2017 9 21 58017 0.2107 0.3544 0.27258 2017 9 22 58018 0.2105 0.3529 0.27095 2017 9 23 58019 0.2102 0.3515 0.26931 2017 9 24 58020 0.2099 0.3501 0.26792 2017 9 25 58021 0.2096 0.3487 0.26656 2017 9 26 58022 0.2093 0.3473 0.26520 2017 9 27 58023 0.2089 0.3459 0.26385 2017 9 28 58024 0.2085 0.3445 0.26258 2017 9 29 58025 0.2081 0.3431 0.26134 2017 9 30 58026 0.2076 0.3417 0.26001 2017 10 1 58027 0.2071 0.3404 0.25861 2017 10 2 58028 0.2066 0.3390 0.25719 2017 10 3 58029 0.2061 0.3377 0.25567 2017 10 4 58030 0.2055 0.3363 0.25387 2017 10 5 58031 0.2050 0.3350 0.25193 2017 10 6 58032 0.2044 0.3336 0.24992 2017 10 7 58033 0.2037 0.3323 0.24786 2017 10 8 58034 0.2031 0.3310 0.24590 2017 10 9 58035 0.2024 0.3297 0.24406 2017 10 10 58036 0.2017 0.3284 0.24240 2017 10 11 58037 0.2010 0.3272 0.24082 2017 10 12 58038 0.2002 0.3259 0.23948 2017 10 13 58039 0.1994 0.3247 0.23812 2017 10 14 58040 0.1986 0.3234 0.23672 2017 10 15 58041 0.1978 0.3222 0.23520 2017 10 16 58042 0.1970 0.3210 0.23357 2017 10 17 58043 0.1961 0.3198 0.23183 2017 10 18 58044 0.1952 0.3186 0.22999 2017 10 19 58045 0.1943 0.3174 0.22821 2017 10 20 58046 0.1934 0.3163 0.22636 2017 10 21 58047 0.1924 0.3151 0.22466 2017 10 22 58048 0.1914 0.3140 0.22296 2017 10 23 58049 0.1904 0.3129 0.22136 2017 10 24 58050 0.1894 0.3118 0.21987 2017 10 25 58051 0.1884 0.3107 0.21854 2017 10 26 58052 0.1873 0.3097 0.21711 2017 10 27 58053 0.1862 0.3086 0.21587 2017 10 28 58054 0.1851 0.3076 0.21457 2017 10 29 58055 0.1840 0.3066 0.21319 2017 10 30 58056 0.1829 0.3056 0.21169 2017 10 31 58057 0.1818 0.3046 0.20998 2017 11 1 58058 0.1806 0.3036 0.20816 2017 11 2 58059 0.1794 0.3027 0.20621 2017 11 3 58060 0.1782 0.3018 0.20405 2017 11 4 58061 0.1770 0.3009 0.20188 2017 11 5 58062 0.1758 0.3000 0.19974 2017 11 6 58063 0.1745 0.2992 0.19768 2017 11 7 58064 0.1733 0.2983 0.19568 2017 11 8 58065 0.1720 0.2975 0.19375 2017 11 9 58066 0.1707 0.2967 0.19182 2017 11 10 58067 0.1694 0.2959 0.18991 2017 11 11 58068 0.1681 0.2952 0.18790 2017 11 12 58069 0.1667 0.2944 0.18581 2017 11 13 58070 0.1654 0.2937 0.18362 2017 11 14 58071 0.1640 0.2930 0.18138 2017 11 15 58072 0.1627 0.2923 0.17926 2017 11 16 58073 0.1613 0.2917 0.17709 2017 11 17 58074 0.1599 0.2910 0.17503 2017 11 18 58075 0.1585 0.2904 0.17298 2017 11 19 58076 0.1571 0.2899 0.17107 2017 11 20 58077 0.1557 0.2893 0.16921 2017 11 21 58078 0.1542 0.2888 0.16739 2017 11 22 58079 0.1528 0.2882 0.16566 2017 11 23 58080 0.1513 0.2877 0.16389 2017 11 24 58081 0.1499 0.2873 0.16208 2017 11 25 58082 0.1484 0.2868 0.16012 2017 11 26 58083 0.1469 0.2864 0.15805 2017 11 27 58084 0.1455 0.2860 0.15586 2017 11 28 58085 0.1440 0.2856 0.15355 2017 11 29 58086 0.1425 0.2853 0.15114 2017 11 30 58087 0.1410 0.2849 0.14869 2017 12 1 58088 0.1395 0.2846 0.14621 2017 12 2 58089 0.1380 0.2844 0.14381 2017 12 3 58090 0.1365 0.2841 0.14160 2017 12 4 58091 0.1350 0.2839 0.13959 2017 12 5 58092 0.1335 0.2836 0.13775 2017 12 6 58093 0.1320 0.2835 0.13606 2017 12 7 58094 0.1305 0.2833 0.13447 2017 12 8 58095 0.1290 0.2832 0.13275 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) 57708 -101.35 0.30 -10.59 0.05 57709 -101.50 0.30 -10.47 0.05 57710 -101.41 0.30 -10.44 0.05 57711 -101.06 0.30 -10.62 0.15 57712 -100.71 0.13 -10.85 0.05 57713 -100.63 0.13 -10.88 0.05 57714 -100.73 0.13 -10.72 0.05 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 57708 0.097 0.119 -0.284 0.050 57709 0.112 0.119 -0.315 0.050 57710 0.138 0.119 -0.314 0.050 57711 0.160 0.119 -0.291 0.150 57712 0.173 0.052 -0.283 0.050 57713 0.172 0.052 -0.275 0.050 57714 0.159 0.052 -0.275 0.050 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).