********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 23 November 2017 Vol. XXX No. 047 ______________________________________________________________________ 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 17 58074 0.15597 .00009 0.24344 .00009 0.262136 0.000012 17 11 18 58075 0.15330 .00009 0.24247 .00009 0.260984 0.000017 17 11 19 58076 0.15073 .00009 0.24152 .00009 0.259954 0.000016 17 11 20 58077 0.14819 .00009 0.24070 .00009 0.259097 0.000006 17 11 21 58078 0.14577 .00009 0.23993 .00009 0.258397 0.000007 17 11 22 58079 0.14375 .00009 0.23923 .00009 0.257762 0.000006 17 11 23 58080 0.14202 .00009 0.23862 .00009 0.257136 0.000006 _______________________________________________________________________ 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 = 0.1147 + 0.0579 cos A - 0.1216 sin A - 0.0283 cos C - 0.0034 sin C y = 0.3451 - 0.1086 cos A - 0.0558 sin A - 0.0034 cos C + 0.0283 sin C UT1-UTC = 0.2523 - 0.00104 (MJD - 58088) - (UT2-UT1) where A = 2*pi*(MJD-58080)/365.25 and C = 2*pi*(MJD-58080)/435. TAI-UTC(MJD 58081) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58080)**0.80 S t = 0.00025 (MJD-58080)**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 24 58081 0.1403 0.2382 0.25652 2017 11 25 58082 0.1384 0.2378 0.25585 2017 11 26 58083 0.1364 0.2375 0.25509 2017 11 27 58084 0.1344 0.2373 0.25420 2017 11 28 58085 0.1323 0.2371 0.25317 2017 11 29 58086 0.1302 0.2369 0.25201 2017 11 30 58087 0.1281 0.2367 0.25073 2017 12 1 58088 0.1260 0.2366 0.24942 2017 12 2 58089 0.1239 0.2365 0.24815 2017 12 3 58090 0.1219 0.2365 0.24699 2017 12 4 58091 0.1198 0.2365 0.24597 2017 12 5 58092 0.1177 0.2365 0.24506 2017 12 6 58093 0.1155 0.2366 0.24420 2017 12 7 58094 0.1134 0.2367 0.24332 2017 12 8 58095 0.1112 0.2368 0.24235 2017 12 9 58096 0.1089 0.2370 0.24128 2017 12 10 58097 0.1068 0.2372 0.24011 2017 12 11 58098 0.1046 0.2374 0.23889 2017 12 12 58099 0.1025 0.2376 0.23769 2017 12 13 58100 0.1003 0.2379 0.23655 2017 12 14 58101 0.0982 0.2382 0.23552 2017 12 15 58102 0.0961 0.2385 0.23461 2017 12 16 58103 0.0940 0.2390 0.23384 2017 12 17 58104 0.0919 0.2394 0.23319 2017 12 18 58105 0.0897 0.2398 0.23265 2017 12 19 58106 0.0876 0.2403 0.23217 2017 12 20 58107 0.0855 0.2409 0.23172 2017 12 21 58108 0.0834 0.2414 0.23124 2017 12 22 58109 0.0814 0.2420 0.23070 2017 12 23 58110 0.0793 0.2427 0.23007 2017 12 24 58111 0.0772 0.2433 0.22931 2017 12 25 58112 0.0752 0.2440 0.22843 2017 12 26 58113 0.0731 0.2447 0.22744 2017 12 27 58114 0.0711 0.2455 0.22636 2017 12 28 58115 0.0691 0.2463 0.22523 2017 12 29 58116 0.0671 0.2471 0.22411 2017 12 30 58117 0.0651 0.2479 0.22306 2017 12 31 58118 0.0631 0.2488 0.22213 2018 1 1 58119 0.0611 0.2497 0.22132 2018 1 2 58120 0.0592 0.2506 0.22058 2018 1 3 58121 0.0572 0.2516 0.21985 2018 1 4 58122 0.0553 0.2526 0.21906 2018 1 5 58123 0.0534 0.2536 0.21817 2018 1 6 58124 0.0516 0.2547 0.21718 2018 1 7 58125 0.0497 0.2558 0.21612 2018 1 8 58126 0.0478 0.2569 0.21506 2018 1 9 58127 0.0460 0.2580 0.21404 2018 1 10 58128 0.0442 0.2592 0.21312 2018 1 11 58129 0.0424 0.2604 0.21230 2018 1 12 58130 0.0407 0.2616 0.21161 2018 1 13 58131 0.0389 0.2629 0.21104 2018 1 14 58132 0.0372 0.2642 0.21056 2018 1 15 58133 0.0355 0.2655 0.21016 2018 1 16 58134 0.0338 0.2668 0.20978 2018 1 17 58135 0.0322 0.2681 0.20940 2018 1 18 58136 0.0305 0.2695 0.20896 2018 1 19 58137 0.0289 0.2709 0.20843 2018 1 20 58138 0.0274 0.2724 0.20778 2018 1 21 58139 0.0258 0.2738 0.20699 2018 1 22 58140 0.0243 0.2753 0.20607 2018 1 23 58141 0.0228 0.2768 0.20504 2018 1 24 58142 0.0213 0.2783 0.20395 2018 1 25 58143 0.0198 0.2799 0.20282 2018 1 26 58144 0.0184 0.2815 0.20172 2018 1 27 58145 0.0170 0.2831 0.20067 2018 1 28 58146 0.0156 0.2847 0.19971 2018 1 29 58147 0.0143 0.2863 0.19881 2018 1 30 58148 0.0130 0.2880 0.19791 2018 1 31 58149 0.0117 0.2896 0.19694 2018 2 1 58150 0.0104 0.2913 0.19585 2018 2 2 58151 0.0092 0.2931 0.19461 2018 2 3 58152 0.0080 0.2948 0.19325 2018 2 4 58153 0.0069 0.2966 0.19183 2018 2 5 58154 0.0057 0.2983 0.19043 2018 2 6 58155 0.0046 0.3001 0.18910 2018 2 7 58156 0.0036 0.3019 0.18787 2018 2 8 58157 0.0025 0.3038 0.18677 2018 2 9 58158 0.0015 0.3056 0.18580 2018 2 10 58159 0.0005 0.3075 0.18492 2018 2 11 58160 -0.0004 0.3093 0.18411 2018 2 12 58161 -0.0013 0.3112 0.18333 2018 2 13 58162 -0.0022 0.3131 0.18254 2018 2 14 58163 -0.0030 0.3150 0.18170 2018 2 15 58164 -0.0038 0.3170 0.18076 2018 2 16 58165 -0.0046 0.3189 0.17969 2018 2 17 58166 -0.0054 0.3209 0.17847 2018 2 18 58167 -0.0061 0.3228 0.17711 2018 2 19 58168 -0.0067 0.3248 0.17564 2018 2 20 58169 -0.0074 0.3268 0.17409 2018 2 21 58170 -0.0080 0.3288 0.17252 2018 2 22 58171 -0.0085 0.3308 0.17099 2018 2 23 58172 -0.0091 0.3328 0.16953 2018 2 24 58173 -0.0096 0.3349 0.16815 2018 2 25 58174 -0.0100 0.3369 0.16685 2018 2 26 58175 -0.0105 0.3389 0.16557 2018 2 27 58176 -0.0109 0.3410 0.16425 2018 2 28 58177 -0.0112 0.3430 0.16283 2018 3 1 58178 -0.0115 0.3451 0.16125 2018 3 2 58179 -0.0118 0.3472 0.15951 2018 3 3 58180 -0.0121 0.3492 0.15767 2018 3 4 58181 -0.0123 0.3513 0.15579 2018 3 5 58182 -0.0124 0.3534 0.15395 2018 3 6 58183 -0.0126 0.3555 0.15221 2018 3 7 58184 -0.0127 0.3576 0.15060 2018 3 8 58185 -0.0127 0.3597 0.14913 2018 3 9 58186 -0.0128 0.3618 0.14779 2018 3 10 58187 -0.0128 0.3638 0.14654 2018 3 11 58188 -0.0127 0.3659 0.14535 2018 3 12 58189 -0.0126 0.3680 0.14429 2018 3 13 58190 -0.0125 0.3701 0.14320 2018 3 14 58191 -0.0124 0.3722 0.14203 2018 3 15 58192 -0.0122 0.3743 0.14074 2018 3 16 58193 -0.0119 0.3764 0.13931 2018 3 17 58194 -0.0117 0.3785 0.13773 2018 3 18 58195 -0.0114 0.3806 0.13601 2018 3 19 58196 -0.0110 0.3826 0.13421 2018 3 20 58197 -0.0107 0.3847 0.13238 2018 3 21 58198 -0.0102 0.3868 0.13059 2018 3 22 58199 -0.0098 0.3888 0.12889 2018 3 23 58200 -0.0093 0.3909 0.12730 2018 3 24 58201 -0.0088 0.3929 0.12581 2018 3 25 58202 -0.0082 0.3950 0.12438 2018 3 26 58203 -0.0076 0.3970 0.12295 2018 3 27 58204 -0.0070 0.3991 0.12146 2018 3 28 58205 -0.0064 0.4011 0.11984 2018 3 29 58206 -0.0057 0.4031 0.11809 2018 3 30 58207 -0.0049 0.4051 0.11621 2018 3 31 58208 -0.0042 0.4071 0.11426 2018 4 1 58209 -0.0034 0.4090 0.11233 2018 4 2 58210 -0.0025 0.4110 0.11046 2018 4 3 58211 -0.0017 0.4130 0.10873 2018 4 4 58212 -0.0008 0.4149 0.10715 2018 4 5 58213 0.0002 0.4168 0.10571 2018 4 6 58214 0.0011 0.4187 0.10440 2018 4 7 58215 0.0022 0.4206 0.10318 2018 4 8 58216 0.0032 0.4225 0.10201 2018 4 9 58217 0.0043 0.4244 0.10083 2018 4 10 58218 0.0054 0.4263 0.09961 2018 4 11 58219 0.0065 0.4281 0.09828 2018 4 12 58220 0.0077 0.4299 0.09684 2018 4 13 58221 0.0089 0.4317 0.09525 2018 4 14 58222 0.0101 0.4335 0.09353 2018 4 15 58223 0.0113 0.4353 0.09171 2018 4 16 58224 0.0126 0.4370 0.08983 2018 4 17 58225 0.0140 0.4388 0.08798 2018 4 18 58226 0.0153 0.4405 0.08622 2018 4 19 58227 0.0167 0.4422 0.08459 2018 4 20 58228 0.0181 0.4439 0.08311 2018 4 21 58229 0.0195 0.4455 0.08172 2018 4 22 58230 0.0210 0.4472 0.08038 2018 4 23 58231 0.0225 0.4488 0.07902 2018 4 24 58232 0.0240 0.4504 0.07757 2018 4 25 58233 0.0256 0.4519 0.07602 2018 4 26 58234 0.0271 0.4535 0.07435 2018 4 27 58235 0.0287 0.4550 0.07262 2018 4 28 58236 0.0304 0.4565 0.07087 2018 4 29 58237 0.0320 0.4580 0.06919 2018 4 30 58238 0.0337 0.4594 0.06761 2018 5 1 58239 0.0354 0.4608 0.06619 2018 5 2 58240 0.0371 0.4622 0.06492 2018 5 3 58241 0.0389 0.4636 0.06381 2018 5 4 58242 0.0407 0.4649 0.06281 2018 5 5 58243 0.0424 0.4663 0.06189 2018 5 6 58244 0.0443 0.4676 0.06101 2018 5 7 58245 0.0461 0.4688 0.06010 2018 5 8 58246 0.0480 0.4701 0.05913 2018 5 9 58247 0.0499 0.4713 0.05806 2018 5 10 58248 0.0518 0.4725 0.05687 2018 5 11 58249 0.0537 0.4736 0.05555 2018 5 12 58250 0.0556 0.4748 0.05411 2018 5 13 58251 0.0576 0.4759 0.05261 2018 5 14 58252 0.0596 0.4769 0.05109 2018 5 15 58253 0.0616 0.4780 0.04963 2018 5 16 58254 0.0636 0.4790 0.04830 2018 5 17 58255 0.0656 0.4800 0.04713 2018 5 18 58256 0.0677 0.4809 0.04608 2018 5 19 58257 0.0697 0.4818 0.04511 2018 5 20 58258 0.0718 0.4827 0.04415 2018 5 21 58259 0.0739 0.4836 0.04313 2018 5 22 58260 0.0760 0.4844 0.04202 2018 5 23 58261 0.0781 0.4852 0.04082 2018 5 24 58262 0.0803 0.4860 0.03955 2018 5 25 58263 0.0824 0.4867 0.03827 2018 5 26 58264 0.0846 0.4874 0.03702 2018 5 27 58265 0.0867 0.4881 0.03587 2018 5 28 58266 0.0889 0.4887 0.03485 2018 5 29 58267 0.0911 0.4893 0.03396 2018 5 30 58268 0.0933 0.4899 0.03321 2018 5 31 58269 0.0955 0.4905 0.03257 2018 6 1 58270 0.0977 0.4910 0.03200 2018 6 2 58271 0.1000 0.4914 0.03147 2018 6 3 58272 0.1022 0.4919 0.03095 2018 6 4 58273 0.1044 0.4923 0.03037 2018 6 5 58274 0.1067 0.4927 0.02972 2018 6 6 58275 0.1089 0.4930 0.02897 2018 6 7 58276 0.1112 0.4933 0.02809 2018 6 8 58277 0.1134 0.4936 0.02709 2018 6 9 58278 0.1157 0.4938 0.02597 2018 6 10 58279 0.1179 0.4941 0.02479 2018 6 11 58280 0.1202 0.4942 0.02360 2018 6 12 58281 0.1225 0.4944 0.02248 2018 6 13 58282 0.1247 0.4945 0.02148 2018 6 14 58283 0.1270 0.4946 0.02064 2018 6 15 58284 0.1293 0.4946 0.01990 2018 6 16 58285 0.1315 0.4946 0.01922 2018 6 17 58286 0.1338 0.4946 0.01850 2018 6 18 58287 0.1361 0.4945 0.01770 2018 6 19 58288 0.1383 0.4944 0.01680 2018 6 20 58289 0.1406 0.4943 0.01584 2018 6 21 58290 0.1428 0.4941 0.01487 2018 6 22 58291 0.1451 0.4939 0.01395 2018 6 23 58292 0.1473 0.4937 0.01315 2018 6 24 58293 0.1496 0.4934 0.01250 2018 6 25 58294 0.1518 0.4932 0.01203 2018 6 26 58295 0.1540 0.4928 0.01173 2018 6 27 58296 0.1563 0.4925 0.01155 2018 6 28 58297 0.1585 0.4921 0.01147 2018 6 29 58298 0.1607 0.4916 0.01145 2018 6 30 58299 0.1629 0.4912 0.01150 2018 7 1 58300 0.1651 0.4907 0.01154 2018 7 2 58301 0.1672 0.4902 0.01150 2018 7 3 58302 0.1694 0.4896 0.01134 2018 7 4 58303 0.1715 0.4890 0.01108 2018 7 5 58304 0.1737 0.4884 0.01072 2018 7 6 58305 0.1758 0.4878 0.01023 2018 7 7 58306 0.1779 0.4871 0.00963 2018 7 8 58307 0.1800 0.4864 0.00891 2018 7 9 58308 0.1821 0.4856 0.00823 2018 7 10 58309 0.1842 0.4848 0.00763 2018 7 11 58310 0.1862 0.4840 0.00714 2018 7 12 58311 0.1883 0.4832 0.00677 2018 7 13 58312 0.1903 0.4823 0.00644 2018 7 14 58313 0.1923 0.4814 0.00610 2018 7 15 58314 0.1943 0.4805 0.00556 2018 7 16 58315 0.1963 0.4795 0.00485 2018 7 17 58316 0.1982 0.4785 0.00402 2018 7 18 58317 0.2002 0.4775 0.00321 2018 7 19 58318 0.2021 0.4765 0.00249 2018 7 20 58319 0.2040 0.4754 0.00188 2018 7 21 58320 0.2058 0.4743 0.00145 2018 7 22 58321 0.2077 0.4732 0.00124 2018 7 23 58322 0.2095 0.4720 0.00130 2018 7 24 58323 0.2113 0.4709 0.00153 2018 7 25 58324 0.2131 0.4696 0.00181 2018 7 26 58325 0.2149 0.4684 0.00212 2018 7 27 58326 0.2166 0.4671 0.00245 2018 7 28 58327 0.2183 0.4659 0.00276 2018 7 29 58328 0.2200 0.4645 0.00307 2018 7 30 58329 0.2217 0.4632 0.00324 2018 7 31 58330 0.2233 0.4618 0.00331 2018 8 1 58331 0.2250 0.4605 0.00321 2018 8 2 58332 0.2266 0.4591 0.00297 2018 8 3 58333 0.2281 0.4576 0.00268 2018 8 4 58334 0.2297 0.4562 0.00235 2018 8 5 58335 0.2312 0.4547 0.00202 2018 8 6 58336 0.2327 0.4532 0.00175 2018 8 7 58337 0.2341 0.4517 0.00159 2018 8 8 58338 0.2355 0.4501 0.00146 2018 8 9 58339 0.2369 0.4486 0.00135 2018 8 10 58340 0.2383 0.4470 0.00122 2018 8 11 58341 0.2397 0.4454 0.00090 2018 8 12 58342 0.2410 0.4437 0.00044 2018 8 13 58343 0.2423 0.4421 -0.00015 2018 8 14 58344 0.2435 0.4404 -0.00084 2018 8 15 58345 0.2447 0.4388 -0.00151 2018 8 16 58346 0.2459 0.4371 -0.00212 2018 8 17 58347 0.2471 0.4353 -0.00261 2018 8 18 58348 0.2482 0.4336 -0.00296 2018 8 19 58349 0.2493 0.4319 -0.00321 2018 8 20 58350 0.2504 0.4301 -0.00338 2018 8 21 58351 0.2514 0.4283 -0.00347 2018 8 22 58352 0.2524 0.4265 -0.00344 2018 8 23 58353 0.2534 0.4247 -0.00337 2018 8 24 58354 0.2543 0.4229 -0.00334 2018 8 25 58355 0.2552 0.4211 -0.00341 2018 8 26 58356 0.2561 0.4192 -0.00360 2018 8 27 58357 0.2569 0.4174 -0.00391 2018 8 28 58358 0.2577 0.4155 -0.00430 2018 8 29 58359 0.2585 0.4136 -0.00483 2018 8 30 58360 0.2592 0.4117 -0.00541 2018 8 31 58361 0.2599 0.4098 -0.00597 2018 9 1 58362 0.2606 0.4079 -0.00651 2018 9 2 58363 0.2612 0.4060 -0.00703 2018 9 3 58364 0.2618 0.4040 -0.00748 2018 9 4 58365 0.2623 0.4021 -0.00782 2018 9 5 58366 0.2629 0.4002 -0.00812 2018 9 6 58367 0.2633 0.3982 -0.00848 2018 9 7 58368 0.2638 0.3962 -0.00899 2018 9 8 58369 0.2642 0.3943 -0.00974 2018 9 9 58370 0.2646 0.3923 -0.01066 2018 9 10 58371 0.2649 0.3903 -0.01178 2018 9 11 58372 0.2653 0.3883 -0.01302 2018 9 12 58373 0.2655 0.3864 -0.01429 2018 9 13 58374 0.2658 0.3844 -0.01554 2018 9 14 58375 0.2660 0.3824 -0.01675 2018 9 15 58376 0.2661 0.3804 -0.01786 2018 9 16 58377 0.2663 0.3784 -0.01884 2018 9 17 58378 0.2664 0.3764 -0.01969 2018 9 18 58379 0.2664 0.3744 -0.02046 2018 9 19 58380 0.2665 0.3724 -0.02119 2018 9 20 58381 0.2665 0.3704 -0.02191 2018 9 21 58382 0.2664 0.3684 -0.02267 2018 9 22 58383 0.2663 0.3664 -0.02351 2018 9 23 58384 0.2662 0.3644 -0.02445 2018 9 24 58385 0.2661 0.3624 -0.02552 2018 9 25 58386 0.2659 0.3604 -0.02672 2018 9 26 58387 0.2657 0.3585 -0.02797 2018 9 27 58388 0.2654 0.3565 -0.02924 2018 9 28 58389 0.2651 0.3545 -0.03049 2018 9 29 58390 0.2648 0.3525 -0.03166 2018 9 30 58391 0.2644 0.3506 -0.03273 2018 10 1 58392 0.2640 0.3486 -0.03371 2018 10 2 58393 0.2636 0.3467 -0.03462 2018 10 3 58394 0.2631 0.3447 -0.03556 2018 10 4 58395 0.2626 0.3428 -0.03655 2018 10 5 58396 0.2621 0.3409 -0.03770 2018 10 6 58397 0.2616 0.3390 -0.03904 2018 10 7 58398 0.2610 0.3371 -0.04059 2018 10 8 58399 0.2603 0.3352 -0.04229 2018 10 9 58400 0.2597 0.3333 -0.04405 2018 10 10 58401 0.2590 0.3314 -0.04580 2018 10 11 58402 0.2582 0.3296 -0.04742 2018 10 12 58403 0.2575 0.3277 -0.04883 2018 10 13 58404 0.2567 0.3259 -0.05004 2018 10 14 58405 0.2558 0.3240 -0.05113 2018 10 15 58406 0.2550 0.3222 -0.05212 2018 10 16 58407 0.2541 0.3204 -0.05313 2018 10 17 58408 0.2532 0.3186 -0.05417 2018 10 18 58409 0.2522 0.3169 -0.05527 2018 10 19 58410 0.2512 0.3151 -0.05645 2018 10 20 58411 0.2502 0.3134 -0.05775 2018 10 21 58412 0.2492 0.3117 -0.05919 2018 10 22 58413 0.2481 0.3100 -0.06074 2018 10 23 58414 0.2470 0.3083 -0.06245 2018 10 24 58415 0.2459 0.3066 -0.06422 2018 10 25 58416 0.2447 0.3050 -0.06598 2018 10 26 58417 0.2435 0.3033 -0.06768 2018 10 27 58418 0.2423 0.3017 -0.06928 2018 10 28 58419 0.2411 0.3001 -0.07078 2018 10 29 58420 0.2398 0.2986 -0.07212 2018 10 30 58421 0.2385 0.2970 -0.07339 2018 10 31 58422 0.2372 0.2955 -0.07471 2018 11 1 58423 0.2359 0.2940 -0.07608 2018 11 2 58424 0.2345 0.2925 -0.07757 2018 11 3 58425 0.2331 0.2910 -0.07925 2018 11 4 58426 0.2317 0.2895 -0.08104 2018 11 5 58427 0.2302 0.2881 -0.08289 2018 11 6 58428 0.2287 0.2867 -0.08474 2018 11 7 58429 0.2273 0.2853 -0.08648 2018 11 8 58430 0.2257 0.2840 -0.08808 2018 11 9 58431 0.2242 0.2827 -0.08952 2018 11 10 58432 0.2226 0.2814 -0.09078 2018 11 11 58433 0.2211 0.2801 -0.09188 2018 11 12 58434 0.2195 0.2788 -0.09287 2018 11 13 58435 0.2178 0.2776 -0.09383 2018 11 14 58436 0.2162 0.2764 -0.09481 2018 11 15 58437 0.2145 0.2752 -0.09591 2018 11 16 58438 0.2128 0.2740 -0.09714 2018 11 17 58439 0.2111 0.2729 -0.09848 2018 11 18 58440 0.2094 0.2718 -0.09988 2018 11 19 58441 0.2077 0.2707 -0.10138 2018 11 20 58442 0.2059 0.2697 -0.10302 2018 11 21 58443 0.2042 0.2687 -0.10470 2018 11 22 58444 0.2024 0.2677 -0.10639 2018 11 23 58445 0.2006 0.2667 -0.10800 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) 58058 -106.53 0.30 -10.38 0.04 58059 -106.47 0.30 -10.05 0.04 58060 -106.27 0.30 -9.77 0.04 58061 -106.11 0.30 -9.72 0.09 58062 -106.11 0.30 -9.92 0.05 58063 -106.21 0.30 -10.14 0.05 58064 -106.28 0.30 -10.14 0.03 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58058 0.304 0.119 0.046 0.040 58059 0.306 0.119 0.024 0.040 58060 0.324 0.119 0.004 0.040 58061 0.340 0.119 0.015 0.090 58062 0.348 0.119 0.053 0.050 58063 0.355 0.119 0.097 0.050 58064 0.366 0.119 0.122 0.030 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).