********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 9 November 2017 Vol. XXX No. 045 ______________________________________________________________________ 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 29 Jun 2017 at 0000 UTC = +0.2 seconds beginning 30 Nov 2017 at 0000 UTC Beginning 1 January 2017: TAI-UTC = 37.000 000 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 be available by 20:00 UTC. * * * * We are currently not able to receive email at * * ser7@maia.usno.navy.mil. Questions and enquiries can now be * * directed to the following email account: navobsy_eop.fct@navy.mil * * * * 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 17 11 3 58060 0.17807 .00009 0.25551 .00009 0.280451 0.000016 17 11 4 58061 0.17676 .00009 0.25492 .00009 0.278882 0.000013 17 11 5 58062 0.17519 .00009 0.25398 .00009 0.277407 0.000011 17 11 6 58063 0.17346 .00009 0.25287 .00009 0.276098 0.000003 17 11 7 58064 0.17187 .00009 0.25161 .00009 0.274957 0.000003 17 11 8 58065 0.17052 .00009 0.25037 .00009 0.273910 0.000002 17 11 9 58066 0.16914 .00009 0.24925 .00009 0.272846 0.000002 _______________________________________________________________________ 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 = 0.1175 + 0.0822 cos A - 0.1111 sin A - 0.0273 cos C - 0.0018 sin C y = 0.3451 - 0.0974 cos A - 0.0767 sin A - 0.0018 cos C + 0.0273 sin C UT1-UTC = 0.2616 - 0.00105 (MJD - 58074) - (UT2-UT1) where A = 2*pi*(MJD-58066)/365.25 and C = 2*pi*(MJD-58066)/435. TAI-UTC(MJD 58067) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58066)**0.80 S t = 0.00025 (MJD-58066)**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) 2017 11 10 58067 0.1677 0.2483 0.27173 2017 11 11 58068 0.1661 0.2475 0.27053 2017 11 12 58069 0.1643 0.2468 0.26924 2017 11 13 58070 0.1624 0.2461 0.26789 2017 11 14 58071 0.1605 0.2455 0.26649 2017 11 15 58072 0.1585 0.2449 0.26512 2017 11 16 58073 0.1565 0.2443 0.26383 2017 11 17 58074 0.1545 0.2437 0.26264 2017 11 18 58075 0.1525 0.2433 0.26157 2017 11 19 58076 0.1504 0.2428 0.26059 2017 11 20 58077 0.1484 0.2424 0.25972 2017 11 21 58078 0.1464 0.2420 0.25894 2017 11 22 58079 0.1444 0.2417 0.25824 2017 11 23 58080 0.1424 0.2414 0.25758 2017 11 24 58081 0.1403 0.2411 0.25691 2017 11 25 58082 0.1382 0.2409 0.25617 2017 11 26 58083 0.1361 0.2407 0.25533 2017 11 27 58084 0.1340 0.2404 0.25435 2017 11 28 58085 0.1319 0.2402 0.25322 2017 11 29 58086 0.1299 0.2401 0.25194 2017 11 30 58087 0.1278 0.2400 0.25054 2017 12 1 58088 0.1257 0.2399 0.24909 2017 12 2 58089 0.1235 0.2399 0.24768 2017 12 3 58090 0.1214 0.2399 0.24637 2017 12 4 58091 0.1193 0.2399 0.24522 2017 12 5 58092 0.1171 0.2400 0.24422 2017 12 6 58093 0.1150 0.2401 0.24330 2017 12 7 58094 0.1128 0.2402 0.24241 2017 12 8 58095 0.1107 0.2404 0.24148 2017 12 9 58096 0.1086 0.2406 0.24050 2017 12 10 58097 0.1064 0.2408 0.23946 2017 12 11 58098 0.1043 0.2411 0.23840 2017 12 12 58099 0.1022 0.2414 0.23733 2017 12 13 58100 0.1000 0.2417 0.23632 2017 12 14 58101 0.0979 0.2421 0.23540 2017 12 15 58102 0.0958 0.2425 0.23459 2017 12 16 58103 0.0937 0.2429 0.23390 2017 12 17 58104 0.0915 0.2434 0.23332 2017 12 18 58105 0.0894 0.2438 0.23282 2017 12 19 58106 0.0874 0.2444 0.23239 2017 12 20 58107 0.0853 0.2449 0.23200 2017 12 21 58108 0.0832 0.2455 0.23158 2017 12 22 58109 0.0811 0.2461 0.23111 2017 12 23 58110 0.0791 0.2468 0.23053 2017 12 24 58111 0.0770 0.2475 0.22983 2017 12 25 58112 0.0750 0.2482 0.22900 2017 12 26 58113 0.0729 0.2489 0.22804 2017 12 27 58114 0.0709 0.2497 0.22697 2017 12 28 58115 0.0689 0.2505 0.22583 2017 12 29 58116 0.0669 0.2513 0.22469 2017 12 30 58117 0.0650 0.2522 0.22361 2017 12 31 58118 0.0630 0.2531 0.22263 2018 1 1 58119 0.0611 0.2540 0.22176 2018 1 2 58120 0.0591 0.2550 0.22096 2018 1 3 58121 0.0572 0.2559 0.22017 2018 1 4 58122 0.0553 0.2569 0.21932 2018 1 5 58123 0.0534 0.2580 0.21836 2018 1 6 58124 0.0516 0.2591 0.21729 2018 1 7 58125 0.0497 0.2602 0.21615 2018 1 8 58126 0.0479 0.2613 0.21500 2018 1 9 58127 0.0461 0.2624 0.21388 2018 1 10 58128 0.0443 0.2636 0.21284 2018 1 11 58129 0.0425 0.2648 0.21190 2018 1 12 58130 0.0408 0.2661 0.21107 2018 1 13 58131 0.0391 0.2673 0.21035 2018 1 14 58132 0.0374 0.2686 0.20972 2018 1 15 58133 0.0357 0.2699 0.20915 2018 1 16 58134 0.0340 0.2713 0.20861 2018 1 17 58135 0.0324 0.2726 0.20805 2018 1 18 58136 0.0308 0.2740 0.20744 2018 1 19 58137 0.0292 0.2754 0.20672 2018 1 20 58138 0.0276 0.2769 0.20588 2018 1 21 58139 0.0261 0.2783 0.20488 2018 1 22 58140 0.0246 0.2798 0.20375 2018 1 23 58141 0.0231 0.2813 0.20251 2018 1 24 58142 0.0217 0.2829 0.20119 2018 1 25 58143 0.0202 0.2844 0.19984 2018 1 26 58144 0.0188 0.2860 0.19853 2018 1 27 58145 0.0174 0.2876 0.19728 2018 1 28 58146 0.0161 0.2892 0.19612 2018 1 29 58147 0.0148 0.2908 0.19503 2018 1 30 58148 0.0135 0.2925 0.19396 2018 1 31 58149 0.0122 0.2942 0.19283 2018 2 1 58150 0.0110 0.2959 0.19158 2018 2 2 58151 0.0098 0.2976 0.19021 2018 2 3 58152 0.0086 0.2993 0.18872 2018 2 4 58153 0.0075 0.3011 0.18718 2018 2 5 58154 0.0063 0.3029 0.18565 2018 2 6 58155 0.0053 0.3047 0.18420 2018 2 7 58156 0.0042 0.3065 0.18285 2018 2 8 58157 0.0032 0.3083 0.18163 2018 2 9 58158 0.0022 0.3101 0.18052 2018 2 10 58159 0.0012 0.3120 0.17951 2018 2 11 58160 0.0003 0.3139 0.17858 2018 2 12 58161 -0.0006 0.3157 0.17768 2018 2 13 58162 -0.0014 0.3176 0.17677 2018 2 14 58163 -0.0022 0.3195 0.17581 2018 2 15 58164 -0.0030 0.3215 0.17475 2018 2 16 58165 -0.0038 0.3234 0.17357 2018 2 17 58166 -0.0045 0.3254 0.17223 2018 2 18 58167 -0.0052 0.3273 0.17076 2018 2 19 58168 -0.0059 0.3293 0.16917 2018 2 20 58169 -0.0065 0.3313 0.16750 2018 2 21 58170 -0.0071 0.3333 0.16582 2018 2 22 58171 -0.0076 0.3353 0.16416 2018 2 23 58172 -0.0081 0.3373 0.16258 2018 2 24 58173 -0.0086 0.3393 0.16109 2018 2 25 58174 -0.0090 0.3413 0.15967 2018 2 26 58175 -0.0094 0.3433 0.15840 2018 2 27 58176 -0.0098 0.3454 0.15710 2018 2 28 58177 -0.0101 0.3474 0.15570 2018 3 1 58178 -0.0104 0.3495 0.15414 2018 3 2 58179 -0.0107 0.3515 0.15244 2018 3 3 58180 -0.0109 0.3536 0.15064 2018 3 4 58181 -0.0111 0.3557 0.14881 2018 3 5 58182 -0.0113 0.3577 0.14702 2018 3 6 58183 -0.0114 0.3598 0.14533 2018 3 7 58184 -0.0115 0.3619 0.14378 2018 3 8 58185 -0.0115 0.3640 0.14236 2018 3 9 58186 -0.0115 0.3660 0.14107 2018 3 10 58187 -0.0115 0.3681 0.13988 2018 3 11 58188 -0.0114 0.3702 0.13875 2018 3 12 58189 -0.0113 0.3723 0.13764 2018 3 13 58190 -0.0112 0.3743 0.13649 2018 3 14 58191 -0.0110 0.3764 0.13525 2018 3 15 58192 -0.0108 0.3785 0.13391 2018 3 16 58193 -0.0106 0.3806 0.13242 2018 3 17 58194 -0.0103 0.3826 0.13078 2018 3 18 58195 -0.0100 0.3847 0.12901 2018 3 19 58196 -0.0096 0.3867 0.12716 2018 3 20 58197 -0.0092 0.3888 0.12528 2018 3 21 58198 -0.0088 0.3908 0.12344 2018 3 22 58199 -0.0083 0.3929 0.12169 2018 3 23 58200 -0.0078 0.3949 0.12005 2018 3 24 58201 -0.0073 0.3970 0.11852 2018 3 25 58202 -0.0067 0.3990 0.11705 2018 3 26 58203 -0.0061 0.4010 0.11558 2018 3 27 58204 -0.0055 0.4030 0.11405 2018 3 28 58205 -0.0048 0.4050 0.11239 2018 3 29 58206 -0.0041 0.4070 0.11060 2018 3 30 58207 -0.0033 0.4090 0.10868 2018 3 31 58208 -0.0026 0.4109 0.10670 2018 4 1 58209 -0.0017 0.4129 0.10472 2018 4 2 58210 -0.0009 0.4148 0.10282 2018 4 3 58211 0.0000 0.4168 0.10106 2018 4 4 58212 0.0009 0.4187 0.09944 2018 4 5 58213 0.0019 0.4206 0.09796 2018 4 6 58214 0.0028 0.4225 0.09662 2018 4 7 58215 0.0039 0.4243 0.09537 2018 4 8 58216 0.0049 0.4262 0.09416 2018 4 9 58217 0.0060 0.4281 0.09296 2018 4 10 58218 0.0071 0.4299 0.09170 2018 4 11 58219 0.0083 0.4317 0.09035 2018 4 12 58220 0.0094 0.4335 0.08887 2018 4 13 58221 0.0106 0.4353 0.08725 2018 4 14 58222 0.0119 0.4370 0.08550 2018 4 15 58223 0.0132 0.4388 0.08364 2018 4 16 58224 0.0145 0.4405 0.08174 2018 4 17 58225 0.0158 0.4422 0.07985 2018 4 18 58226 0.0171 0.4439 0.07806 2018 4 19 58227 0.0185 0.4456 0.07640 2018 4 20 58228 0.0200 0.4472 0.07488 2018 4 21 58229 0.0214 0.4489 0.07346 2018 4 22 58230 0.0229 0.4505 0.07209 2018 4 23 58231 0.0244 0.4520 0.07069 2018 4 24 58232 0.0259 0.4536 0.06921 2018 4 25 58233 0.0275 0.4551 0.06761 2018 4 26 58234 0.0291 0.4567 0.06591 2018 4 27 58235 0.0307 0.4582 0.06414 2018 4 28 58236 0.0323 0.4596 0.06237 2018 4 29 58237 0.0340 0.4611 0.06065 2018 4 30 58238 0.0357 0.4625 0.05904 2018 5 1 58239 0.0374 0.4639 0.05758 2018 5 2 58240 0.0391 0.4653 0.05628 2018 5 3 58241 0.0409 0.4666 0.05513 2018 5 4 58242 0.0426 0.4679 0.05410 2018 5 5 58243 0.0444 0.4692 0.05314 2018 5 6 58244 0.0463 0.4705 0.05220 2018 5 7 58245 0.0481 0.4717 0.05124 2018 5 8 58246 0.0500 0.4729 0.05020 2018 5 9 58247 0.0519 0.4741 0.04905 2018 5 10 58248 0.0538 0.4753 0.04777 2018 5 11 58249 0.0557 0.4764 0.04633 2018 5 12 58250 0.0577 0.4775 0.04476 2018 5 13 58251 0.0596 0.4786 0.04309 2018 5 14 58252 0.0616 0.4796 0.04138 2018 5 15 58253 0.0636 0.4806 0.03970 2018 5 16 58254 0.0656 0.4816 0.03811 2018 5 17 58255 0.0677 0.4826 0.03664 2018 5 18 58256 0.0697 0.4835 0.03529 2018 5 19 58257 0.0718 0.4844 0.03400 2018 5 20 58258 0.0739 0.4852 0.03272 2018 5 21 58259 0.0760 0.4861 0.03139 2018 5 22 58260 0.0781 0.4869 0.02998 2018 5 23 58261 0.0802 0.4876 0.02849 2018 5 24 58262 0.0823 0.4884 0.02695 2018 5 25 58263 0.0845 0.4891 0.02540 2018 5 26 58264 0.0866 0.4898 0.02392 2018 5 27 58265 0.0888 0.4904 0.02256 2018 5 28 58266 0.0910 0.4910 0.02136 2018 5 29 58267 0.0932 0.4916 0.02035 2018 5 30 58268 0.0954 0.4921 0.01952 2018 5 31 58269 0.0976 0.4927 0.01885 2018 6 1 58270 0.0998 0.4931 0.01829 2018 6 2 58271 0.1020 0.4936 0.01780 2018 6 3 58272 0.1043 0.4940 0.01733 2018 6 4 58273 0.1065 0.4944 0.01684 2018 6 5 58274 0.1087 0.4947 0.01628 2018 6 6 58275 0.1110 0.4950 0.01562 2018 6 7 58276 0.1132 0.4953 0.01485 2018 6 8 58277 0.1155 0.4956 0.01396 2018 6 9 58278 0.1177 0.4958 0.01297 2018 6 10 58279 0.1200 0.4960 0.01189 2018 6 11 58280 0.1223 0.4961 0.01080 2018 6 12 58281 0.1245 0.4962 0.00977 2018 6 13 58282 0.1268 0.4963 0.00886 2018 6 14 58283 0.1290 0.4964 0.00809 2018 6 15 58284 0.1313 0.4964 0.00743 2018 6 16 58285 0.1336 0.4964 0.00680 2018 6 17 58286 0.1358 0.4963 0.00609 2018 6 18 58287 0.1381 0.4962 0.00524 2018 6 19 58288 0.1403 0.4961 0.00429 2018 6 20 58289 0.1426 0.4960 0.00332 2018 6 21 58290 0.1448 0.4958 0.00240 2018 6 22 58291 0.1471 0.4955 0.00156 2018 6 23 58292 0.1493 0.4953 0.00086 2018 6 24 58293 0.1516 0.4950 0.00038 2018 6 25 58294 0.1538 0.4947 0.00016 2018 6 26 58295 0.1560 0.4943 0.00014 2018 6 27 58296 0.1582 0.4940 0.00021 2018 6 28 58297 0.1604 0.4935 0.00036 2018 6 29 58298 0.1626 0.4931 0.00058 2018 6 30 58299 0.1648 0.4926 0.00082 2018 7 1 58300 0.1670 0.4921 0.00111 2018 7 2 58301 0.1691 0.4916 0.00130 2018 7 3 58302 0.1713 0.4910 0.00140 2018 7 4 58303 0.1734 0.4904 0.00135 2018 7 5 58304 0.1756 0.4897 0.00116 2018 7 6 58305 0.1777 0.4891 0.00089 2018 7 7 58306 0.1798 0.4883 0.00055 2018 7 8 58307 0.1819 0.4876 0.00017 2018 7 9 58308 0.1839 0.4868 -0.00015 2018 7 10 58309 0.1860 0.4861 -0.00036 2018 7 11 58310 0.1880 0.4852 -0.00050 2018 7 12 58311 0.1901 0.4844 -0.00056 2018 7 13 58312 0.1921 0.4835 -0.00058 2018 7 14 58313 0.1941 0.4826 -0.00072 2018 7 15 58314 0.1960 0.4816 -0.00093 2018 7 16 58315 0.1980 0.4806 -0.00125 2018 7 17 58316 0.1999 0.4796 -0.00167 2018 7 18 58317 0.2019 0.4786 -0.00209 2018 7 19 58318 0.2038 0.4776 -0.00247 2018 7 20 58319 0.2056 0.4765 -0.00277 2018 7 21 58320 0.2075 0.4753 -0.00294 2018 7 22 58321 0.2093 0.4742 -0.00302 2018 7 23 58322 0.2112 0.4730 -0.00301 2018 7 24 58323 0.2129 0.4718 -0.00288 2018 7 25 58324 0.2147 0.4706 -0.00260 2018 7 26 58325 0.2165 0.4694 -0.00223 2018 7 27 58326 0.2182 0.4681 -0.00184 2018 7 28 58327 0.2199 0.4668 -0.00152 2018 7 29 58328 0.2216 0.4655 -0.00129 2018 7 30 58329 0.2232 0.4641 -0.00115 2018 7 31 58330 0.2249 0.4627 -0.00108 2018 8 1 58331 0.2265 0.4614 -0.00114 2018 8 2 58332 0.2280 0.4599 -0.00128 2018 8 3 58333 0.2296 0.4585 -0.00144 2018 8 4 58334 0.2311 0.4570 -0.00161 2018 8 5 58335 0.2326 0.4555 -0.00180 2018 8 6 58336 0.2341 0.4540 -0.00194 2018 8 7 58337 0.2355 0.4525 -0.00198 2018 8 8 58338 0.2369 0.4509 -0.00192 2018 8 9 58339 0.2383 0.4494 -0.00188 2018 8 10 58340 0.2396 0.4478 -0.00192 2018 8 11 58341 0.2410 0.4462 -0.00216 2018 8 12 58342 0.2423 0.4445 -0.00254 2018 8 13 58343 0.2435 0.4429 -0.00311 2018 8 14 58344 0.2448 0.4412 -0.00383 2018 8 15 58345 0.2460 0.4395 -0.00461 2018 8 16 58346 0.2471 0.4378 -0.00539 2018 8 17 58347 0.2483 0.4361 -0.00617 2018 8 18 58348 0.2494 0.4344 -0.00685 2018 8 19 58349 0.2504 0.4326 -0.00740 2018 8 20 58350 0.2515 0.4309 -0.00782 2018 8 21 58351 0.2525 0.4291 -0.00813 2018 8 22 58352 0.2535 0.4273 -0.00837 2018 8 23 58353 0.2544 0.4255 -0.00857 2018 8 24 58354 0.2553 0.4236 -0.00877 2018 8 25 58355 0.2562 0.4218 -0.00902 2018 8 26 58356 0.2571 0.4200 -0.00936 2018 8 27 58357 0.2579 0.4181 -0.00982 2018 8 28 58358 0.2587 0.4162 -0.01042 2018 8 29 58359 0.2594 0.4144 -0.01109 2018 8 30 58360 0.2601 0.4125 -0.01182 2018 8 31 58361 0.2608 0.4106 -0.01257 2018 9 1 58362 0.2614 0.4086 -0.01329 2018 9 2 58363 0.2620 0.4067 -0.01396 2018 9 3 58364 0.2626 0.4048 -0.01455 2018 9 4 58365 0.2631 0.4029 -0.01507 2018 9 5 58366 0.2636 0.4009 -0.01558 2018 9 6 58367 0.2641 0.3990 -0.01612 2018 9 7 58368 0.2645 0.3970 -0.01677 2018 9 8 58369 0.2649 0.3950 -0.01760 2018 9 9 58370 0.2653 0.3931 -0.01865 2018 9 10 58371 0.2656 0.3911 -0.01989 2018 9 11 58372 0.2659 0.3891 -0.02123 2018 9 12 58373 0.2662 0.3872 -0.02261 2018 9 13 58374 0.2664 0.3852 -0.02388 2018 9 14 58375 0.2666 0.3832 -0.02498 2018 9 15 58376 0.2667 0.3812 -0.02587 2018 9 16 58377 0.2668 0.3792 -0.02664 2018 9 17 58378 0.2669 0.3772 -0.02731 2018 9 18 58379 0.2669 0.3752 -0.02798 2018 9 19 58380 0.2669 0.3733 -0.02866 2018 9 20 58381 0.2669 0.3713 -0.02937 2018 9 21 58382 0.2668 0.3693 -0.03016 2018 9 22 58383 0.2667 0.3673 -0.03106 2018 9 23 58384 0.2666 0.3653 -0.03208 2018 9 24 58385 0.2664 0.3634 -0.03324 2018 9 25 58386 0.2662 0.3614 -0.03457 2018 9 26 58387 0.2660 0.3594 -0.03601 2018 9 27 58388 0.2657 0.3574 -0.03748 2018 9 28 58389 0.2654 0.3555 -0.03892 2018 9 29 58390 0.2650 0.3535 -0.04032 2018 9 30 58391 0.2646 0.3516 -0.04165 2018 10 1 58392 0.2642 0.3496 -0.04283 2018 10 2 58393 0.2638 0.3477 -0.04393 2018 10 3 58394 0.2633 0.3458 -0.04504 2018 10 4 58395 0.2628 0.3439 -0.04618 2018 10 5 58396 0.2622 0.3420 -0.04743 2018 10 6 58397 0.2616 0.3401 -0.04888 2018 10 7 58398 0.2610 0.3382 -0.05050 2018 10 8 58399 0.2604 0.3363 -0.05224 2018 10 9 58400 0.2597 0.3344 -0.05404 2018 10 10 58401 0.2589 0.3326 -0.05578 2018 10 11 58402 0.2582 0.3307 -0.05741 2018 10 12 58403 0.2574 0.3289 -0.05888 2018 10 13 58404 0.2566 0.3271 -0.06018 2018 10 14 58405 0.2557 0.3253 -0.06130 2018 10 15 58406 0.2549 0.3235 -0.06230 2018 10 16 58407 0.2539 0.3217 -0.06325 2018 10 17 58408 0.2530 0.3199 -0.06420 2018 10 18 58409 0.2520 0.3182 -0.06524 2018 10 19 58410 0.2510 0.3165 -0.06643 2018 10 20 58411 0.2500 0.3148 -0.06771 2018 10 21 58412 0.2489 0.3131 -0.06907 2018 10 22 58413 0.2478 0.3114 -0.07055 2018 10 23 58414 0.2467 0.3097 -0.07219 2018 10 24 58415 0.2456 0.3081 -0.07393 2018 10 25 58416 0.2444 0.3064 -0.07569 2018 10 26 58417 0.2432 0.3048 -0.07741 2018 10 27 58418 0.2419 0.3032 -0.07901 2018 10 28 58419 0.2407 0.3017 -0.08048 2018 10 29 58420 0.2394 0.3001 -0.08187 2018 10 30 58421 0.2381 0.2986 -0.08326 2018 10 31 58422 0.2367 0.2971 -0.08470 2018 11 1 58423 0.2354 0.2956 -0.08624 2018 11 2 58424 0.2340 0.2941 -0.08797 2018 11 3 58425 0.2325 0.2927 -0.08987 2018 11 4 58426 0.2311 0.2913 -0.09189 2018 11 5 58427 0.2296 0.2899 -0.09395 2018 11 6 58428 0.2281 0.2885 -0.09596 2018 11 7 58429 0.2266 0.2871 -0.09787 2018 11 8 58430 0.2251 0.2858 -0.09963 2018 11 9 58431 0.2235 0.2845 -0.10122 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) 58040 -109.58 0.30 -11.18 0.02 58041 -109.21 0.11 -11.18 0.03 58042 -108.87 0.11 -11.13 0.03 58043 -108.66 0.30 -11.06 0.03 58044 -108.61 0.30 -10.96 0.03 58045 -108.62 0.30 -10.84 0.03 58046 -108.56 0.30 -10.73 0.03 58047 -108.43 0.30 -10.68 0.03 58048 -108.24 0.30 -10.75 0.03 58049 -107.92 0.30 -10.91 0.03 58050 -107.39 0.30 -11.05 0.02 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58040 0.215 0.119 0.070 0.020 58041 0.209 0.044 0.055 0.030 58042 0.197 0.044 0.052 0.030 58043 0.199 0.119 0.048 0.030 58044 0.208 0.119 0.063 0.030 58045 0.216 0.119 0.081 0.030 58046 0.228 0.119 0.090 0.030 58047 0.245 0.119 0.095 0.030 58048 0.263 0.119 0.076 0.030 58049 0.281 0.119 0.033 0.030 58050 0.312 0.119 -0.002 0.020 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).