********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 15 February 2018 Vol. XXXI No. 007 ______________________________________________________________________ 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 9 58158 0.00480 .00009 0.30139 .00009 0.184806 0.000010 18 2 10 58159 0.00410 .00009 0.30321 .00009 0.183904 0.000010 18 2 11 58160 0.00356 .00009 0.30516 .00009 0.183116 0.000011 18 2 12 58161 0.00325 .00009 0.30723 .00009 0.182355 0.000007 18 2 13 58162 0.00300 .00009 0.30930 .00009 0.181617 0.000007 18 2 14 58163 0.00257 .00009 0.31129 .00009 0.180856 0.000007 18 2 15 58164 0.00196 .00009 0.31326 .00009 0.180011 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 = 0.1188 - 0.1188 cos A - 0.0629 sin A - 0.0014 cos C + 0.0209 sin C y = 0.3530 - 0.0591 cos A + 0.1093 sin A + 0.0209 cos C + 0.0014 sin C UT1-UTC = 0.1833 - 0.00094 (MJD - 58172) - (UT2-UT1) where A = 2*pi*(MJD-58164)/365.25 and C = 2*pi*(MJD-58164)/435. TAI-UTC(MJD 58165) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58164)**0.80 S t = 0.00025 (MJD-58164)**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 16 58165 0.0013 0.3152 0.17906 2018 2 17 58166 0.0006 0.3170 0.17800 2018 2 18 58167 -0.0002 0.3188 0.17685 2018 2 19 58168 -0.0008 0.3206 0.17565 2018 2 20 58169 -0.0013 0.3223 0.17444 2018 2 21 58170 -0.0018 0.3240 0.17327 2018 2 22 58171 -0.0023 0.3258 0.17216 2018 2 23 58172 -0.0027 0.3277 0.17113 2018 2 24 58173 -0.0032 0.3295 0.17018 2018 2 25 58174 -0.0037 0.3314 0.16929 2018 2 26 58175 -0.0041 0.3331 0.16835 2018 2 27 58176 -0.0044 0.3349 0.16731 2018 2 28 58177 -0.0048 0.3367 0.16612 2018 3 1 58178 -0.0051 0.3385 0.16475 2018 3 2 58179 -0.0053 0.3404 0.16320 2018 3 3 58180 -0.0054 0.3422 0.16151 2018 3 4 58181 -0.0056 0.3440 0.15975 2018 3 5 58182 -0.0057 0.3458 0.15799 2018 3 6 58183 -0.0058 0.3476 0.15631 2018 3 7 58184 -0.0058 0.3495 0.15477 2018 3 8 58185 -0.0058 0.3513 0.15340 2018 3 9 58186 -0.0058 0.3532 0.15218 2018 3 10 58187 -0.0058 0.3550 0.15110 2018 3 11 58188 -0.0057 0.3569 0.15012 2018 3 12 58189 -0.0056 0.3587 0.14920 2018 3 13 58190 -0.0054 0.3605 0.14829 2018 3 14 58191 -0.0052 0.3623 0.14734 2018 3 15 58192 -0.0050 0.3642 0.14630 2018 3 16 58193 -0.0048 0.3660 0.14515 2018 3 17 58194 -0.0045 0.3678 0.14389 2018 3 18 58195 -0.0042 0.3696 0.14251 2018 3 19 58196 -0.0038 0.3714 0.14107 2018 3 20 58197 -0.0034 0.3733 0.13960 2018 3 21 58198 -0.0030 0.3751 0.13816 2018 3 22 58199 -0.0026 0.3768 0.13681 2018 3 23 58200 -0.0021 0.3786 0.13556 2018 3 24 58201 -0.0016 0.3804 0.13440 2018 3 25 58202 -0.0010 0.3822 0.13331 2018 3 26 58203 -0.0004 0.3840 0.13221 2018 3 27 58204 0.0002 0.3857 0.13104 2018 3 28 58205 0.0009 0.3875 0.12974 2018 3 29 58206 0.0015 0.3892 0.12828 2018 3 30 58207 0.0023 0.3909 0.12670 2018 3 31 58208 0.0030 0.3927 0.12504 2018 4 1 58209 0.0038 0.3944 0.12338 2018 4 2 58210 0.0046 0.3961 0.12177 2018 4 3 58211 0.0055 0.3977 0.12028 2018 4 4 58212 0.0063 0.3994 0.11893 2018 4 5 58213 0.0073 0.4011 0.11772 2018 4 6 58214 0.0082 0.4027 0.11664 2018 4 7 58215 0.0092 0.4044 0.11564 2018 4 8 58216 0.0102 0.4060 0.11469 2018 4 9 58217 0.0112 0.4076 0.11374 2018 4 10 58218 0.0123 0.4092 0.11275 2018 4 11 58219 0.0134 0.4107 0.11167 2018 4 12 58220 0.0145 0.4123 0.11046 2018 4 13 58221 0.0156 0.4138 0.10912 2018 4 14 58222 0.0168 0.4154 0.10763 2018 4 15 58223 0.0180 0.4169 0.10604 2018 4 16 58224 0.0193 0.4184 0.10440 2018 4 17 58225 0.0205 0.4198 0.10277 2018 4 18 58226 0.0218 0.4213 0.10125 2018 4 19 58227 0.0231 0.4227 0.09986 2018 4 20 58228 0.0245 0.4241 0.09861 2018 4 21 58229 0.0258 0.4255 0.09746 2018 4 22 58230 0.0272 0.4269 0.09637 2018 4 23 58231 0.0287 0.4283 0.09524 2018 4 24 58232 0.0301 0.4296 0.09404 2018 4 25 58233 0.0316 0.4309 0.09273 2018 4 26 58234 0.0331 0.4322 0.09130 2018 4 27 58235 0.0346 0.4335 0.08981 2018 4 28 58236 0.0361 0.4347 0.08830 2018 4 29 58237 0.0377 0.4359 0.08685 2018 4 30 58238 0.0393 0.4371 0.08553 2018 5 1 58239 0.0409 0.4383 0.08435 2018 5 2 58240 0.0425 0.4395 0.08335 2018 5 3 58241 0.0442 0.4406 0.08250 2018 5 4 58242 0.0459 0.4417 0.08178 2018 5 5 58243 0.0476 0.4428 0.08115 2018 5 6 58244 0.0493 0.4438 0.08056 2018 5 7 58245 0.0510 0.4448 0.07996 2018 5 8 58246 0.0528 0.4458 0.07929 2018 5 9 58247 0.0545 0.4468 0.07852 2018 5 10 58248 0.0563 0.4478 0.07763 2018 5 11 58249 0.0581 0.4487 0.07662 2018 5 12 58250 0.0600 0.4496 0.07549 2018 5 13 58251 0.0618 0.4505 0.07429 2018 5 14 58252 0.0636 0.4513 0.07307 2018 5 15 58253 0.0655 0.4521 0.07192 2018 5 16 58254 0.0674 0.4529 0.07089 2018 5 17 58255 0.0693 0.4536 0.07001 2018 5 18 58256 0.0712 0.4544 0.06926 2018 5 19 58257 0.0731 0.4551 0.06859 2018 5 20 58258 0.0751 0.4557 0.06793 2018 5 21 58259 0.0770 0.4564 0.06721 2018 5 22 58260 0.0790 0.4570 0.06641 2018 5 23 58261 0.0810 0.4576 0.06551 2018 5 24 58262 0.0829 0.4581 0.06455 2018 5 25 58263 0.0849 0.4587 0.06359 2018 5 26 58264 0.0869 0.4592 0.06268 2018 5 27 58265 0.0889 0.4596 0.06187 2018 5 28 58266 0.0910 0.4601 0.06121 2018 5 29 58267 0.0930 0.4605 0.06070 2018 5 30 58268 0.0950 0.4608 0.06034 2018 5 31 58269 0.0971 0.4612 0.06012 2018 6 1 58270 0.0991 0.4615 0.05998 2018 6 2 58271 0.1011 0.4618 0.05990 2018 6 3 58272 0.1032 0.4620 0.05981 2018 6 4 58273 0.1053 0.4622 0.05969 2018 6 5 58274 0.1073 0.4624 0.05948 2018 6 6 58275 0.1094 0.4626 0.05917 2018 6 7 58276 0.1115 0.4627 0.05874 2018 6 8 58277 0.1135 0.4628 0.05819 2018 6 9 58278 0.1156 0.4629 0.05755 2018 6 10 58279 0.1177 0.4629 0.05687 2018 6 11 58280 0.1197 0.4629 0.05620 2018 6 12 58281 0.1218 0.4629 0.05561 2018 6 13 58282 0.1239 0.4628 0.05515 2018 6 14 58283 0.1259 0.4627 0.05483 2018 6 15 58284 0.1280 0.4626 0.05460 2018 6 16 58285 0.1301 0.4625 0.05440 2018 6 17 58286 0.1321 0.4623 0.05415 2018 6 18 58287 0.1342 0.4621 0.05380 2018 6 19 58288 0.1362 0.4618 0.05335 2018 6 20 58289 0.1383 0.4616 0.05283 2018 6 21 58290 0.1403 0.4612 0.05230 2018 6 22 58291 0.1423 0.4609 0.05182 2018 6 23 58292 0.1444 0.4605 0.05144 2018 6 24 58293 0.1464 0.4601 0.05120 2018 6 25 58294 0.1484 0.4597 0.05111 2018 6 26 58295 0.1504 0.4593 0.05116 2018 6 27 58296 0.1524 0.4588 0.05135 2018 6 28 58297 0.1543 0.4582 0.05163 2018 6 29 58298 0.1563 0.4577 0.05197 2018 6 30 58299 0.1583 0.4571 0.05232 2018 7 1 58300 0.1602 0.4565 0.05263 2018 7 2 58301 0.1621 0.4559 0.05286 2018 7 3 58302 0.1641 0.4552 0.05298 2018 7 4 58303 0.1660 0.4545 0.05298 2018 7 5 58304 0.1679 0.4538 0.05287 2018 7 6 58305 0.1697 0.4530 0.05266 2018 7 7 58306 0.1716 0.4523 0.05238 2018 7 8 58307 0.1735 0.4514 0.05208 2018 7 9 58308 0.1753 0.4506 0.05181 2018 7 10 58309 0.1771 0.4497 0.05163 2018 7 11 58310 0.1789 0.4489 0.05156 2018 7 12 58311 0.1807 0.4479 0.05157 2018 7 13 58312 0.1824 0.4470 0.05162 2018 7 14 58313 0.1842 0.4460 0.05161 2018 7 15 58314 0.1859 0.4450 0.05149 2018 7 16 58315 0.1876 0.4440 0.05123 2018 7 17 58316 0.1893 0.4429 0.05086 2018 7 18 58317 0.1910 0.4419 0.05043 2018 7 19 58318 0.1926 0.4408 0.05002 2018 7 20 58319 0.1942 0.4396 0.04970 2018 7 21 58320 0.1958 0.4385 0.04951 2018 7 22 58321 0.1974 0.4373 0.04947 2018 7 23 58322 0.1990 0.4361 0.04957 2018 7 24 58323 0.2005 0.4349 0.04979 2018 7 25 58324 0.2020 0.4336 0.05011 2018 7 26 58325 0.2035 0.4324 0.05048 2018 7 27 58326 0.2050 0.4311 0.05085 2018 7 28 58327 0.2064 0.4298 0.05118 2018 7 29 58328 0.2078 0.4284 0.05143 2018 7 30 58329 0.2092 0.4271 0.05157 2018 7 31 58330 0.2106 0.4257 0.05158 2018 8 1 58331 0.2119 0.4243 0.05146 2018 8 2 58332 0.2132 0.4229 0.05124 2018 8 3 58333 0.2145 0.4214 0.05094 2018 8 4 58334 0.2157 0.4200 0.05061 2018 8 5 58335 0.2170 0.4185 0.05029 2018 8 6 58336 0.2182 0.4170 0.05003 2018 8 7 58337 0.2193 0.4155 0.04985 2018 8 8 58338 0.2205 0.4139 0.04975 2018 8 9 58339 0.2216 0.4124 0.04969 2018 8 10 58340 0.2226 0.4108 0.04960 2018 8 11 58341 0.2237 0.4092 0.04940 2018 8 12 58342 0.2247 0.4077 0.04905 2018 8 13 58343 0.2257 0.4060 0.04855 2018 8 14 58344 0.2267 0.4044 0.04796 2018 8 15 58345 0.2276 0.4028 0.04736 2018 8 16 58346 0.2285 0.4011 0.04686 2018 8 17 58347 0.2293 0.3994 0.04651 2018 8 18 58348 0.2302 0.3978 0.04637 2018 8 19 58349 0.2310 0.3961 0.04643 2018 8 20 58350 0.2317 0.3943 0.04669 2018 8 21 58351 0.2325 0.3926 0.04711 2018 8 22 58352 0.2332 0.3909 0.04764 2018 8 23 58353 0.2339 0.3891 0.04822 2018 8 24 58354 0.2345 0.3874 0.04880 2018 8 25 58355 0.2351 0.3856 0.04930 2018 8 26 58356 0.2357 0.3839 0.04967 2018 8 27 58357 0.2362 0.3821 0.04986 2018 8 28 58358 0.2367 0.3803 0.04986 2018 8 29 58359 0.2372 0.3785 0.04967 2018 8 30 58360 0.2376 0.3767 0.04935 2018 8 31 58361 0.2380 0.3749 0.04894 2018 9 1 58362 0.2384 0.3731 0.04850 2018 9 2 58363 0.2387 0.3712 0.04807 2018 9 3 58364 0.2390 0.3694 0.04768 2018 9 4 58365 0.2393 0.3676 0.04733 2018 9 5 58366 0.2395 0.3657 0.04698 2018 9 6 58367 0.2397 0.3639 0.04657 2018 9 7 58368 0.2399 0.3621 0.04602 2018 9 8 58369 0.2400 0.3602 0.04524 2018 9 9 58370 0.2401 0.3584 0.04423 2018 9 10 58371 0.2401 0.3565 0.04299 2018 9 11 58372 0.2402 0.3547 0.04161 2018 9 12 58373 0.2401 0.3528 0.04019 2018 9 13 58374 0.2401 0.3510 0.03883 2018 9 14 58375 0.2400 0.3491 0.03758 2018 9 15 58376 0.2399 0.3473 0.03648 2018 9 16 58377 0.2397 0.3454 0.03552 2018 9 17 58378 0.2396 0.3436 0.03467 2018 9 18 58379 0.2393 0.3417 0.03388 2018 9 19 58380 0.2391 0.3399 0.03309 2018 9 20 58381 0.2388 0.3381 0.03226 2018 9 21 58382 0.2385 0.3362 0.03135 2018 9 22 58383 0.2381 0.3344 0.03034 2018 9 23 58384 0.2377 0.3326 0.02923 2018 9 24 58385 0.2373 0.3308 0.02803 2018 9 25 58386 0.2368 0.3290 0.02674 2018 9 26 58387 0.2364 0.3272 0.02537 2018 9 27 58388 0.2358 0.3254 0.02393 2018 9 28 58389 0.2353 0.3236 0.02247 2018 9 29 58390 0.2347 0.3218 0.02108 2018 9 30 58391 0.2341 0.3200 0.01986 2018 10 1 58392 0.2334 0.3183 0.01872 2018 10 2 58393 0.2327 0.3165 0.01768 2018 10 3 58394 0.2320 0.3148 0.01664 2018 10 4 58395 0.2312 0.3131 0.01545 2018 10 5 58396 0.2304 0.3113 0.01402 2018 10 6 58397 0.2296 0.3096 0.01237 2018 10 7 58398 0.2288 0.3079 0.01051 2018 10 8 58399 0.2279 0.3063 0.00850 2018 10 9 58400 0.2270 0.3046 0.00649 2018 10 10 58401 0.2260 0.3029 0.00455 2018 10 11 58402 0.2251 0.3013 0.00272 2018 10 12 58403 0.2241 0.2997 0.00108 2018 10 13 58404 0.2230 0.2981 -0.00033 2018 10 14 58405 0.2220 0.2965 -0.00158 2018 10 15 58406 0.2209 0.2949 -0.00269 2018 10 16 58407 0.2198 0.2933 -0.00372 2018 10 17 58408 0.2186 0.2918 -0.00480 2018 10 18 58409 0.2174 0.2903 -0.00592 2018 10 19 58410 0.2162 0.2888 -0.00704 2018 10 20 58411 0.2150 0.2873 -0.00827 2018 10 21 58412 0.2137 0.2858 -0.00967 2018 10 22 58413 0.2125 0.2843 -0.01122 2018 10 23 58414 0.2111 0.2829 -0.01285 2018 10 24 58415 0.2098 0.2815 -0.01454 2018 10 25 58416 0.2084 0.2801 -0.01621 2018 10 26 58417 0.2071 0.2787 -0.01778 2018 10 27 58418 0.2056 0.2774 -0.01925 2018 10 28 58419 0.2042 0.2761 -0.02062 2018 10 29 58420 0.2027 0.2747 -0.02190 2018 10 30 58421 0.2013 0.2735 -0.02303 2018 10 31 58422 0.1998 0.2722 -0.02422 2018 11 1 58423 0.1982 0.2710 -0.02556 2018 11 2 58424 0.1967 0.2697 -0.02704 2018 11 3 58425 0.1951 0.2685 -0.02874 2018 11 4 58426 0.1935 0.2674 -0.03060 2018 11 5 58427 0.1919 0.2662 -0.03253 2018 11 6 58428 0.1903 0.2651 -0.03449 2018 11 7 58429 0.1886 0.2640 -0.03641 2018 11 8 58430 0.1869 0.2629 -0.03818 2018 11 9 58431 0.1852 0.2619 -0.03978 2018 11 10 58432 0.1835 0.2609 -0.04125 2018 11 11 58433 0.1818 0.2599 -0.04264 2018 11 12 58434 0.1800 0.2589 -0.04399 2018 11 13 58435 0.1783 0.2580 -0.04533 2018 11 14 58436 0.1765 0.2571 -0.04667 2018 11 15 58437 0.1747 0.2562 -0.04810 2018 11 16 58438 0.1729 0.2553 -0.04967 2018 11 17 58439 0.1711 0.2545 -0.05134 2018 11 18 58440 0.1692 0.2537 -0.05312 2018 11 19 58441 0.1674 0.2529 -0.05495 2018 11 20 58442 0.1655 0.2522 -0.05680 2018 11 21 58443 0.1636 0.2514 -0.05861 2018 11 22 58444 0.1617 0.2507 -0.06037 2018 11 23 58445 0.1598 0.2501 -0.06212 2018 11 24 58446 0.1579 0.2494 -0.06376 2018 11 25 58447 0.1560 0.2488 -0.06526 2018 11 26 58448 0.1540 0.2483 -0.06665 2018 11 27 58449 0.1521 0.2477 -0.06796 2018 11 28 58450 0.1501 0.2472 -0.06930 2018 11 29 58451 0.1482 0.2467 -0.07074 2018 11 30 58452 0.1462 0.2463 -0.07233 2018 12 1 58453 0.1442 0.2458 -0.07410 2018 12 2 58454 0.1423 0.2454 -0.07598 2018 12 3 58455 0.1403 0.2451 -0.07788 2018 12 4 58456 0.1383 0.2447 -0.07963 2018 12 5 58457 0.1363 0.2444 -0.08125 2018 12 6 58458 0.1343 0.2442 -0.08274 2018 12 7 58459 0.1323 0.2439 -0.08402 2018 12 8 58460 0.1303 0.2437 -0.08514 2018 12 9 58461 0.1283 0.2435 -0.08612 2018 12 10 58462 0.1262 0.2434 -0.08699 2018 12 11 58463 0.1242 0.2433 -0.08781 2018 12 12 58464 0.1222 0.2432 -0.08877 2018 12 13 58465 0.1202 0.2431 -0.08983 2018 12 14 58466 0.1182 0.2431 -0.09094 2018 12 15 58467 0.1162 0.2431 -0.09210 2018 12 16 58468 0.1142 0.2431 -0.09333 2018 12 17 58469 0.1122 0.2432 -0.09468 2018 12 18 58470 0.1101 0.2433 -0.09611 2018 12 19 58471 0.1081 0.2434 -0.09751 2018 12 20 58472 0.1062 0.2435 -0.09886 2018 12 21 58473 0.1042 0.2437 -0.10014 2018 12 22 58474 0.1022 0.2439 -0.10135 2018 12 23 58475 0.1002 0.2442 -0.10257 2018 12 24 58476 0.0982 0.2445 -0.10374 2018 12 25 58477 0.0962 0.2448 -0.10497 2018 12 26 58478 0.0943 0.2451 -0.10631 2018 12 27 58479 0.0923 0.2455 -0.10778 2018 12 28 58480 0.0904 0.2459 -0.10936 2018 12 29 58481 0.0885 0.2463 -0.11099 2018 12 30 58482 0.0865 0.2468 -0.11270 2018 12 31 58483 0.0846 0.2472 -0.11437 2019 1 1 58484 0.0827 0.2478 -0.11593 2019 1 2 58485 0.0808 0.2483 -0.11726 2019 1 3 58486 0.0789 0.2489 -0.11836 2019 1 4 58487 0.0771 0.2495 -0.11930 2019 1 5 58488 0.0752 0.2501 -0.12008 2019 1 6 58489 0.0734 0.2508 -0.12072 2019 1 7 58490 0.0715 0.2515 -0.12123 2019 1 8 58491 0.0697 0.2522 -0.12172 2019 1 9 58492 0.0679 0.2529 -0.12233 2019 1 10 58493 0.0662 0.2537 -0.12307 2019 1 11 58494 0.0644 0.2545 -0.12392 2019 1 12 58495 0.0626 0.2553 -0.12485 2019 1 13 58496 0.0609 0.2562 -0.12581 2019 1 14 58497 0.0592 0.2570 -0.12684 2019 1 15 58498 0.0575 0.2579 -0.12789 2019 1 16 58499 0.0558 0.2589 -0.12897 2019 1 17 58500 0.0542 0.2598 -0.13001 2019 1 18 58501 0.0525 0.2608 -0.13094 2019 1 19 58502 0.0509 0.2618 -0.13178 2019 1 20 58503 0.0493 0.2628 -0.13260 2019 1 21 58504 0.0477 0.2639 -0.13343 2019 1 22 58505 0.0462 0.2650 -0.13436 2019 1 23 58506 0.0447 0.2661 -0.13551 2019 1 24 58507 0.0431 0.2672 -0.13685 2019 1 25 58508 0.0417 0.2684 -0.13830 2019 1 26 58509 0.0402 0.2695 -0.13986 2019 1 27 58510 0.0388 0.2707 -0.14132 2019 1 28 58511 0.0373 0.2720 -0.14262 2019 1 29 58512 0.0359 0.2732 -0.14374 2019 1 30 58513 0.0346 0.2745 -0.14464 2019 1 31 58514 0.0332 0.2757 -0.14539 2019 2 1 58515 0.0319 0.2770 -0.14602 2019 2 2 58516 0.0306 0.2784 -0.14659 2019 2 3 58517 0.0294 0.2797 -0.14720 2019 2 4 58518 0.0281 0.2811 -0.14789 2019 2 5 58519 0.0269 0.2825 -0.14867 2019 2 6 58520 0.0257 0.2839 -0.14950 2019 2 7 58521 0.0246 0.2853 -0.15040 2019 2 8 58522 0.0235 0.2867 -0.15142 2019 2 9 58523 0.0224 0.2882 -0.15257 2019 2 10 58524 0.0213 0.2896 -0.15380 2019 2 11 58525 0.0203 0.2911 -0.15504 2019 2 12 58526 0.0192 0.2926 -0.15621 2019 2 13 58527 0.0183 0.2941 -0.15735 2019 2 14 58528 0.0173 0.2957 -0.15838 2019 2 15 58529 0.0164 0.2972 -0.15927 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) 58135 -103.38 0.20 -8.42 0.07 58136 -103.14 0.20 -8.37 0.07 58137 -103.03 0.20 -8.36 0.07 58138 -103.08 0.20 -8.39 0.09 58139 -103.22 0.20 -8.39 0.09 58140 -103.37 0.20 -8.39 0.09 58141 -103.52 0.30 -8.43 0.15 58142 -103.62 0.30 -8.52 0.15 58143 -103.65 0.30 -8.57 0.15 58144 -103.71 0.30 -8.51 0.15 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58135 0.164 0.080 -0.208 0.070 58136 0.198 0.080 -0.206 0.070 58137 0.220 0.080 -0.209 0.070 58138 0.221 0.080 -0.207 0.090 58139 0.213 0.080 -0.179 0.090 58140 0.203 0.080 -0.174 0.090 58141 0.183 0.119 -0.186 0.150 58142 0.171 0.119 -0.201 0.150 58143 0.165 0.119 -0.205 0.150 58144 0.150 0.119 -0.214 0.150 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).