********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 8 February 2018 Vol. XXXI No. 006 ______________________________________________________________________ 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 = +0.2 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 18 2 2 58151 0.01405 .00009 0.29012 .00009 0.195042 0.000021 18 2 3 58152 0.01244 .00009 0.29173 .00009 0.193465 0.000023 18 2 4 58153 0.01053 .00009 0.29343 .00009 0.191797 0.000022 18 2 5 58154 0.00844 .00009 0.29524 .00009 0.190125 0.000017 18 2 6 58155 0.00686 .00009 0.29668 .00009 0.188560 0.000016 18 2 7 58156 0.00614 .00009 0.29799 .00009 0.187147 0.000015 18 2 8 58157 0.00566 .00009 0.29961 .00009 0.185889 0.000012 _______________________________________________________________________ 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 - 0.1088 cos A - 0.0795 sin A - 0.0064 cos C + 0.0221 sin C y = 0.3531 - 0.0742 cos A + 0.0994 sin A + 0.0221 cos C + 0.0064 sin C UT1-UTC = 0.1884 - 0.00095 (MJD - 58165) - (UT2-UT1) where A = 2*pi*(MJD-58157)/365.25 and C = 2*pi*(MJD-58157)/435. TAI-UTC(MJD 58158) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58157)**0.80 S t = 0.00025 (MJD-58157)**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) 2018 2 9 58158 0.0051 0.3014 0.18479 2018 2 10 58159 0.0044 0.3031 0.18385 2018 2 11 58160 0.0036 0.3050 0.18305 2018 2 12 58161 0.0027 0.3068 0.18232 2018 2 13 58162 0.0019 0.3086 0.18162 2018 2 14 58163 0.0011 0.3104 0.18092 2018 2 15 58164 0.0003 0.3121 0.18018 2018 2 16 58165 -0.0004 0.3138 0.17933 2018 2 17 58166 -0.0011 0.3156 0.17833 2018 2 18 58167 -0.0018 0.3174 0.17715 2018 2 19 58168 -0.0024 0.3192 0.17580 2018 2 20 58169 -0.0030 0.3209 0.17432 2018 2 21 58170 -0.0035 0.3227 0.17276 2018 2 22 58171 -0.0040 0.3245 0.17119 2018 2 23 58172 -0.0045 0.3263 0.16967 2018 2 24 58173 -0.0050 0.3281 0.16823 2018 2 25 58174 -0.0055 0.3300 0.16690 2018 2 26 58175 -0.0059 0.3319 0.16565 2018 2 27 58176 -0.0063 0.3337 0.16440 2018 2 28 58177 -0.0067 0.3355 0.16311 2018 3 1 58178 -0.0070 0.3373 0.16172 2018 3 2 58179 -0.0072 0.3392 0.16023 2018 3 3 58180 -0.0074 0.3410 0.15869 2018 3 4 58181 -0.0076 0.3429 0.15716 2018 3 5 58182 -0.0077 0.3447 0.15571 2018 3 6 58183 -0.0079 0.3466 0.15439 2018 3 7 58184 -0.0079 0.3485 0.15323 2018 3 8 58185 -0.0080 0.3504 0.15223 2018 3 9 58186 -0.0080 0.3522 0.15137 2018 3 10 58187 -0.0080 0.3541 0.15060 2018 3 11 58188 -0.0079 0.3560 0.14988 2018 3 12 58189 -0.0078 0.3578 0.14917 2018 3 13 58190 -0.0077 0.3597 0.14841 2018 3 14 58191 -0.0076 0.3616 0.14757 2018 3 15 58192 -0.0074 0.3634 0.14661 2018 3 16 58193 -0.0071 0.3653 0.14549 2018 3 17 58194 -0.0069 0.3672 0.14422 2018 3 18 58195 -0.0066 0.3690 0.14281 2018 3 19 58196 -0.0063 0.3709 0.14130 2018 3 20 58197 -0.0059 0.3727 0.13975 2018 3 21 58198 -0.0055 0.3746 0.13823 2018 3 22 58199 -0.0051 0.3764 0.13678 2018 3 23 58200 -0.0046 0.3782 0.13543 2018 3 24 58201 -0.0041 0.3801 0.13416 2018 3 25 58202 -0.0035 0.3819 0.13294 2018 3 26 58203 -0.0030 0.3837 0.13172 2018 3 27 58204 -0.0024 0.3855 0.13042 2018 3 28 58205 -0.0017 0.3873 0.12900 2018 3 29 58206 -0.0011 0.3891 0.12745 2018 3 30 58207 -0.0004 0.3909 0.12577 2018 3 31 58208 0.0004 0.3926 0.12403 2018 4 1 58209 0.0012 0.3944 0.12231 2018 4 2 58210 0.0020 0.3962 0.12066 2018 4 3 58211 0.0028 0.3979 0.11914 2018 4 4 58212 0.0037 0.3996 0.11776 2018 4 5 58213 0.0046 0.4013 0.11654 2018 4 6 58214 0.0055 0.4030 0.11543 2018 4 7 58215 0.0065 0.4047 0.11443 2018 4 8 58216 0.0075 0.4064 0.11347 2018 4 9 58217 0.0085 0.4080 0.11252 2018 4 10 58218 0.0095 0.4097 0.11152 2018 4 11 58219 0.0106 0.4113 0.11044 2018 4 12 58220 0.0117 0.4129 0.10923 2018 4 13 58221 0.0129 0.4145 0.10788 2018 4 14 58222 0.0141 0.4161 0.10640 2018 4 15 58223 0.0153 0.4177 0.10481 2018 4 16 58224 0.0165 0.4192 0.10317 2018 4 17 58225 0.0177 0.4207 0.10156 2018 4 18 58226 0.0190 0.4223 0.10003 2018 4 19 58227 0.0204 0.4237 0.09864 2018 4 20 58228 0.0217 0.4252 0.09740 2018 4 21 58229 0.0231 0.4267 0.09626 2018 4 22 58230 0.0245 0.4281 0.09518 2018 4 23 58231 0.0259 0.4295 0.09407 2018 4 24 58232 0.0273 0.4309 0.09290 2018 4 25 58233 0.0288 0.4323 0.09162 2018 4 26 58234 0.0303 0.4336 0.09024 2018 4 27 58235 0.0318 0.4350 0.08879 2018 4 28 58236 0.0334 0.4363 0.08733 2018 4 29 58237 0.0350 0.4375 0.08593 2018 4 30 58238 0.0366 0.4388 0.08465 2018 5 1 58239 0.0382 0.4400 0.08352 2018 5 2 58240 0.0398 0.4412 0.08254 2018 5 3 58241 0.0415 0.4424 0.08171 2018 5 4 58242 0.0432 0.4436 0.08101 2018 5 5 58243 0.0449 0.4447 0.08038 2018 5 6 58244 0.0466 0.4458 0.07978 2018 5 7 58245 0.0483 0.4469 0.07917 2018 5 8 58246 0.0501 0.4480 0.07849 2018 5 9 58247 0.0519 0.4490 0.07771 2018 5 10 58248 0.0537 0.4500 0.07681 2018 5 11 58249 0.0555 0.4510 0.07579 2018 5 12 58250 0.0574 0.4520 0.07465 2018 5 13 58251 0.0592 0.4529 0.07343 2018 5 14 58252 0.0611 0.4538 0.07221 2018 5 15 58253 0.0630 0.4547 0.07105 2018 5 16 58254 0.0649 0.4555 0.07002 2018 5 17 58255 0.0668 0.4563 0.06914 2018 5 18 58256 0.0687 0.4571 0.06839 2018 5 19 58257 0.0707 0.4579 0.06771 2018 5 20 58258 0.0726 0.4586 0.06704 2018 5 21 58259 0.0746 0.4593 0.06632 2018 5 22 58260 0.0766 0.4600 0.06549 2018 5 23 58261 0.0786 0.4606 0.06457 2018 5 24 58262 0.0806 0.4612 0.06358 2018 5 25 58263 0.0826 0.4618 0.06258 2018 5 26 58264 0.0846 0.4624 0.06162 2018 5 27 58265 0.0867 0.4629 0.06076 2018 5 28 58266 0.0887 0.4634 0.06005 2018 5 29 58267 0.0908 0.4638 0.05951 2018 5 30 58268 0.0928 0.4643 0.05912 2018 5 31 58269 0.0949 0.4647 0.05886 2018 6 1 58270 0.0970 0.4650 0.05869 2018 6 2 58271 0.0991 0.4654 0.05858 2018 6 3 58272 0.1012 0.4657 0.05847 2018 6 4 58273 0.1032 0.4659 0.05832 2018 6 5 58274 0.1053 0.4662 0.05808 2018 6 6 58275 0.1074 0.4664 0.05774 2018 6 7 58276 0.1095 0.4666 0.05729 2018 6 8 58277 0.1117 0.4667 0.05672 2018 6 9 58278 0.1138 0.4669 0.05607 2018 6 10 58279 0.1159 0.4669 0.05537 2018 6 11 58280 0.1180 0.4670 0.05469 2018 6 12 58281 0.1201 0.4670 0.05410 2018 6 13 58282 0.1222 0.4670 0.05363 2018 6 14 58283 0.1243 0.4670 0.05330 2018 6 15 58284 0.1264 0.4669 0.05306 2018 6 16 58285 0.1285 0.4668 0.05285 2018 6 17 58286 0.1306 0.4667 0.05258 2018 6 18 58287 0.1327 0.4665 0.05222 2018 6 19 58288 0.1348 0.4663 0.05175 2018 6 20 58289 0.1369 0.4661 0.05122 2018 6 21 58290 0.1390 0.4658 0.05067 2018 6 22 58291 0.1411 0.4655 0.05016 2018 6 23 58292 0.1431 0.4652 0.04975 2018 6 24 58293 0.1452 0.4648 0.04947 2018 6 25 58294 0.1472 0.4645 0.04934 2018 6 26 58295 0.1493 0.4640 0.04936 2018 6 27 58296 0.1513 0.4636 0.04950 2018 6 28 58297 0.1534 0.4631 0.04974 2018 6 29 58298 0.1554 0.4626 0.05004 2018 6 30 58299 0.1574 0.4621 0.05034 2018 7 1 58300 0.1594 0.4615 0.05060 2018 7 2 58301 0.1614 0.4609 0.05078 2018 7 3 58302 0.1634 0.4603 0.05086 2018 7 4 58303 0.1653 0.4596 0.05082 2018 7 5 58304 0.1673 0.4589 0.05066 2018 7 6 58305 0.1692 0.4582 0.05040 2018 7 7 58306 0.1711 0.4575 0.05007 2018 7 8 58307 0.1730 0.4567 0.04973 2018 7 9 58308 0.1749 0.4559 0.04942 2018 7 10 58309 0.1768 0.4551 0.04919 2018 7 11 58310 0.1787 0.4542 0.04908 2018 7 12 58311 0.1805 0.4533 0.04905 2018 7 13 58312 0.1823 0.4524 0.04906 2018 7 14 58313 0.1841 0.4515 0.04902 2018 7 15 58314 0.1859 0.4505 0.04887 2018 7 16 58315 0.1877 0.4495 0.04857 2018 7 17 58316 0.1894 0.4485 0.04817 2018 7 18 58317 0.1912 0.4474 0.04771 2018 7 19 58318 0.1929 0.4463 0.04727 2018 7 20 58319 0.1946 0.4452 0.04692 2018 7 21 58320 0.1962 0.4441 0.04671 2018 7 22 58321 0.1979 0.4430 0.04663 2018 7 23 58322 0.1995 0.4418 0.04671 2018 7 24 58323 0.2011 0.4406 0.04690 2018 7 25 58324 0.2027 0.4393 0.04719 2018 7 26 58325 0.2042 0.4381 0.04753 2018 7 27 58326 0.2057 0.4368 0.04787 2018 7 28 58327 0.2072 0.4355 0.04818 2018 7 29 58328 0.2087 0.4342 0.04841 2018 7 30 58329 0.2102 0.4329 0.04853 2018 7 31 58330 0.2116 0.4315 0.04853 2018 8 1 58331 0.2130 0.4301 0.04841 2018 8 2 58332 0.2144 0.4287 0.04819 2018 8 3 58333 0.2157 0.4273 0.04790 2018 8 4 58334 0.2170 0.4258 0.04760 2018 8 5 58335 0.2183 0.4244 0.04732 2018 8 6 58336 0.2196 0.4229 0.04712 2018 8 7 58337 0.2208 0.4214 0.04703 2018 8 8 58338 0.2221 0.4198 0.04704 2018 8 9 58339 0.2232 0.4183 0.04712 2018 8 10 58340 0.2244 0.4167 0.04720 2018 8 11 58341 0.2255 0.4151 0.04722 2018 8 12 58342 0.2266 0.4135 0.04712 2018 8 13 58343 0.2276 0.4119 0.04692 2018 8 14 58344 0.2287 0.4103 0.04666 2018 8 15 58345 0.2297 0.4086 0.04643 2018 8 16 58346 0.2306 0.4070 0.04630 2018 8 17 58347 0.2316 0.4053 0.04632 2018 8 18 58348 0.2325 0.4036 0.04649 2018 8 19 58349 0.2334 0.4019 0.04678 2018 8 20 58350 0.2342 0.4002 0.04715 2018 8 21 58351 0.2350 0.3985 0.04756 2018 8 22 58352 0.2358 0.3967 0.04796 2018 8 23 58353 0.2365 0.3950 0.04831 2018 8 24 58354 0.2372 0.3932 0.04856 2018 8 25 58355 0.2379 0.3914 0.04868 2018 8 26 58356 0.2385 0.3896 0.04863 2018 8 27 58357 0.2392 0.3878 0.04839 2018 8 28 58358 0.2397 0.3860 0.04795 2018 8 29 58359 0.2403 0.3842 0.04734 2018 8 30 58360 0.2408 0.3824 0.04657 2018 8 31 58361 0.2412 0.3806 0.04572 2018 9 1 58362 0.2417 0.3787 0.04482 2018 9 2 58363 0.2421 0.3769 0.04392 2018 9 3 58364 0.2425 0.3750 0.04307 2018 9 4 58365 0.2428 0.3732 0.04226 2018 9 5 58366 0.2431 0.3713 0.04149 2018 9 6 58367 0.2434 0.3694 0.04067 2018 9 7 58368 0.2436 0.3676 0.03976 2018 9 8 58369 0.2438 0.3657 0.03868 2018 9 9 58370 0.2440 0.3638 0.03741 2018 9 10 58371 0.2441 0.3619 0.03601 2018 9 11 58372 0.2442 0.3601 0.03454 2018 9 12 58373 0.2442 0.3582 0.03310 2018 9 13 58374 0.2442 0.3563 0.03175 2018 9 14 58375 0.2442 0.3544 0.03054 2018 9 15 58376 0.2442 0.3525 0.02950 2018 9 16 58377 0.2441 0.3506 0.02865 2018 9 17 58378 0.2440 0.3487 0.02794 2018 9 18 58379 0.2438 0.3469 0.02732 2018 9 19 58380 0.2436 0.3450 0.02672 2018 9 20 58381 0.2434 0.3431 0.02601 2018 9 21 58382 0.2432 0.3412 0.02512 2018 9 22 58383 0.2429 0.3394 0.02407 2018 9 23 58384 0.2425 0.3375 0.02287 2018 9 24 58385 0.2422 0.3356 0.02149 2018 9 25 58386 0.2418 0.3338 0.02005 2018 9 26 58387 0.2414 0.3319 0.01853 2018 9 27 58388 0.2409 0.3301 0.01695 2018 9 28 58389 0.2404 0.3282 0.01540 2018 9 29 58390 0.2399 0.3264 0.01397 2018 9 30 58391 0.2393 0.3246 0.01263 2018 10 1 58392 0.2387 0.3228 0.01143 2018 10 2 58393 0.2381 0.3210 0.01032 2018 10 3 58394 0.2374 0.3192 0.00915 2018 10 4 58395 0.2367 0.3174 0.00794 2018 10 5 58396 0.2360 0.3156 0.00667 2018 10 6 58397 0.2352 0.3138 0.00525 2018 10 7 58398 0.2344 0.3121 0.00361 2018 10 8 58399 0.2336 0.3103 0.00181 2018 10 9 58400 0.2328 0.3086 -0.00001 2018 10 10 58401 0.2319 0.3069 -0.00178 2018 10 11 58402 0.2309 0.3052 -0.00340 2018 10 12 58403 0.2300 0.3035 -0.00482 2018 10 13 58404 0.2290 0.3018 -0.00607 2018 10 14 58405 0.2280 0.3002 -0.00718 2018 10 15 58406 0.2270 0.2985 -0.00820 2018 10 16 58407 0.2259 0.2969 -0.00907 2018 10 17 58408 0.2248 0.2953 -0.00997 2018 10 18 58409 0.2237 0.2937 -0.01098 2018 10 19 58410 0.2225 0.2921 -0.01208 2018 10 20 58411 0.2213 0.2905 -0.01337 2018 10 21 58412 0.2201 0.2890 -0.01482 2018 10 22 58413 0.2189 0.2875 -0.01638 2018 10 23 58414 0.2176 0.2860 -0.01810 2018 10 24 58415 0.2163 0.2845 -0.01995 2018 10 25 58416 0.2150 0.2830 -0.02178 2018 10 26 58417 0.2136 0.2816 -0.02358 2018 10 27 58418 0.2123 0.2801 -0.02532 2018 10 28 58419 0.2109 0.2787 -0.02697 2018 10 29 58420 0.2094 0.2773 -0.02859 2018 10 30 58421 0.2080 0.2760 -0.03018 2018 10 31 58422 0.2065 0.2746 -0.03178 2018 11 1 58423 0.2050 0.2733 -0.03349 2018 11 2 58424 0.2035 0.2720 -0.03538 2018 11 3 58425 0.2020 0.2707 -0.03742 2018 11 4 58426 0.2004 0.2695 -0.03957 2018 11 5 58427 0.1988 0.2683 -0.04174 2018 11 6 58428 0.1972 0.2671 -0.04384 2018 11 7 58429 0.1956 0.2659 -0.04577 2018 11 8 58430 0.1939 0.2647 -0.04753 2018 11 9 58431 0.1923 0.2636 -0.04920 2018 11 10 58432 0.1906 0.2625 -0.05071 2018 11 11 58433 0.1889 0.2614 -0.05207 2018 11 12 58434 0.1871 0.2604 -0.05332 2018 11 13 58435 0.1854 0.2593 -0.05447 2018 11 14 58436 0.1836 0.2583 -0.05560 2018 11 15 58437 0.1819 0.2573 -0.05678 2018 11 16 58438 0.1801 0.2564 -0.05806 2018 11 17 58439 0.1783 0.2555 -0.05952 2018 11 18 58440 0.1764 0.2546 -0.06116 2018 11 19 58441 0.1746 0.2537 -0.06292 2018 11 20 58442 0.1727 0.2529 -0.06469 2018 11 21 58443 0.1709 0.2521 -0.06650 2018 11 22 58444 0.1690 0.2513 -0.06830 2018 11 23 58445 0.1671 0.2505 -0.06999 2018 11 24 58446 0.1652 0.2498 -0.07152 2018 11 25 58447 0.1633 0.2491 -0.07290 2018 11 26 58448 0.1613 0.2485 -0.07414 2018 11 27 58449 0.1594 0.2478 -0.07533 2018 11 28 58450 0.1575 0.2472 -0.07667 2018 11 29 58451 0.1555 0.2466 -0.07816 2018 11 30 58452 0.1535 0.2461 -0.07972 2018 12 1 58453 0.1516 0.2456 -0.08133 2018 12 2 58454 0.1496 0.2451 -0.08298 2018 12 3 58455 0.1476 0.2446 -0.08465 2018 12 4 58456 0.1456 0.2442 -0.08627 2018 12 5 58457 0.1436 0.2438 -0.08772 2018 12 6 58458 0.1416 0.2434 -0.08901 2018 12 7 58459 0.1396 0.2431 -0.09016 2018 12 8 58460 0.1376 0.2428 -0.09121 2018 12 9 58461 0.1355 0.2425 -0.09226 2018 12 10 58462 0.1335 0.2423 -0.09324 2018 12 11 58463 0.1315 0.2421 -0.09422 2018 12 12 58464 0.1295 0.2419 -0.09524 2018 12 13 58465 0.1274 0.2417 -0.09632 2018 12 14 58466 0.1254 0.2416 -0.09750 2018 12 15 58467 0.1234 0.2415 -0.09875 2018 12 16 58468 0.1213 0.2415 -0.10020 2018 12 17 58469 0.1193 0.2414 -0.10178 2018 12 18 58470 0.1173 0.2414 -0.10341 2018 12 19 58471 0.1153 0.2415 -0.10500 2018 12 20 58472 0.1132 0.2415 -0.10645 2018 12 21 58473 0.1112 0.2416 -0.10779 2018 12 22 58474 0.1092 0.2418 -0.10897 2018 12 23 58475 0.1072 0.2419 -0.10997 2018 12 24 58476 0.1052 0.2421 -0.11081 2018 12 25 58477 0.1032 0.2423 -0.11165 2018 12 26 58478 0.1012 0.2426 -0.11265 2018 12 27 58479 0.0992 0.2429 -0.11383 2018 12 28 58480 0.0972 0.2432 -0.11512 2018 12 29 58481 0.0953 0.2435 -0.11647 2018 12 30 58482 0.0933 0.2439 -0.11774 2018 12 31 58483 0.0914 0.2443 -0.11895 2019 1 1 58484 0.0894 0.2447 -0.12003 2019 1 2 58485 0.0875 0.2452 -0.12098 2019 1 3 58486 0.0856 0.2457 -0.12181 2019 1 4 58487 0.0836 0.2462 -0.12247 2019 1 5 58488 0.0818 0.2467 -0.12302 2019 1 6 58489 0.0799 0.2473 -0.12353 2019 1 7 58490 0.0780 0.2479 -0.12401 2019 1 8 58491 0.0761 0.2485 -0.12449 2019 1 9 58492 0.0743 0.2492 -0.12510 2019 1 10 58493 0.0725 0.2499 -0.12582 2019 1 11 58494 0.0706 0.2506 -0.12665 2019 1 12 58495 0.0688 0.2514 -0.12767 2019 1 13 58496 0.0671 0.2521 -0.12874 2019 1 14 58497 0.0653 0.2529 -0.12984 2019 1 15 58498 0.0635 0.2538 -0.13096 2019 1 16 58499 0.0618 0.2546 -0.13201 2019 1 17 58500 0.0601 0.2555 -0.13300 2019 1 18 58501 0.0584 0.2564 -0.13389 2019 1 19 58502 0.0567 0.2573 -0.13471 2019 1 20 58503 0.0551 0.2583 -0.13553 2019 1 21 58504 0.0534 0.2593 -0.13644 2019 1 22 58505 0.0518 0.2603 -0.13748 2019 1 23 58506 0.0502 0.2613 -0.13863 2019 1 24 58507 0.0486 0.2624 -0.13993 2019 1 25 58508 0.0471 0.2635 -0.14134 2019 1 26 58509 0.0455 0.2646 -0.14280 2019 1 27 58510 0.0440 0.2657 -0.14422 2019 1 28 58511 0.0425 0.2669 -0.14549 2019 1 29 58512 0.0411 0.2680 -0.14653 2019 1 30 58513 0.0396 0.2692 -0.14742 2019 1 31 58514 0.0382 0.2705 -0.14812 2019 2 1 58515 0.0368 0.2717 -0.14865 2019 2 2 58516 0.0355 0.2730 -0.14910 2019 2 3 58517 0.0341 0.2743 -0.14956 2019 2 4 58518 0.0328 0.2756 -0.15006 2019 2 5 58519 0.0315 0.2769 -0.15060 2019 2 6 58520 0.0303 0.2782 -0.15123 2019 2 7 58521 0.0290 0.2796 -0.15204 2019 2 8 58522 0.0278 0.2810 -0.15301 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) 58131 -104.21 0.30 -8.16 0.03 58132 -104.29 0.30 -8.25 0.03 58133 -104.10 0.30 -8.37 0.03 58134 -103.83 0.30 -8.44 0.02 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58131 0.164 0.119 -0.219 0.030 58132 0.123 0.119 -0.236 0.030 58133 0.099 0.119 -0.241 0.030 58134 0.083 0.119 -0.226 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).