********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 26 July 2018 Vol. XXXI No. 030 ______________________________________________________________________ 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 = +0.1 seconds beginning 15 Mar 2018 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 7 20 58319 0.19056 .00009 0.41568 .00009 0.069447 0.000010 18 7 21 58320 0.19167 .00009 0.41463 .00009 0.069163 0.000009 18 7 22 58321 0.19271 .00009 0.41361 .00009 0.069047 0.000009 18 7 23 58322 0.19377 .00009 0.41277 .00009 0.069073 0.000004 18 7 24 58323 0.19477 .00009 0.41221 .00009 0.069190 0.000005 18 7 25 58324 0.19549 .00009 0.41182 .00009 0.069337 0.000005 18 7 26 58325 0.19588 .00009 0.41136 .00009 0.069516 0.000004 _______________________________________________________________________ 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 = 0.1153 + 0.1049 cos A + 0.0643 sin A - 0.0183 cos C - 0.0042 sin C y = 0.3546 + 0.0637 cos A - 0.0999 sin A - 0.0042 cos C + 0.0183 sin C UT1-UTC = 0.0563 - 0.00070 (MJD - 58333) - (UT2-UT1) where A = 2*pi*(MJD-58325)/365.25 and C = 2*pi*(MJD-58325)/435. TAI-UTC(MJD 58326) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58325)**0.80 S t = 0.00025 (MJD-58325)**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 7 27 58326 0.1962 0.4106 0.06969 2018 7 28 58327 0.1965 0.4097 0.06982 2018 7 29 58328 0.1970 0.4087 0.06989 2018 7 30 58329 0.1975 0.4075 0.06989 2018 7 31 58330 0.1980 0.4064 0.06978 2018 8 1 58331 0.1987 0.4052 0.06957 2018 8 2 58332 0.1993 0.4041 0.06927 2018 8 3 58333 0.1999 0.4030 0.06891 2018 8 4 58334 0.2005 0.4018 0.06851 2018 8 5 58335 0.2011 0.4007 0.06810 2018 8 6 58336 0.2017 0.3995 0.06772 2018 8 7 58337 0.2023 0.3983 0.06738 2018 8 8 58338 0.2029 0.3971 0.06711 2018 8 9 58339 0.2034 0.3959 0.06690 2018 8 10 58340 0.2039 0.3946 0.06666 2018 8 11 58341 0.2044 0.3933 0.06632 2018 8 12 58342 0.2049 0.3921 0.06581 2018 8 13 58343 0.2053 0.3908 0.06516 2018 8 14 58344 0.2057 0.3896 0.06442 2018 8 15 58345 0.2061 0.3883 0.06366 2018 8 16 58346 0.2065 0.3871 0.06297 2018 8 17 58347 0.2068 0.3859 0.06245 2018 8 18 58348 0.2071 0.3846 0.06211 2018 8 19 58349 0.2073 0.3833 0.06198 2018 8 20 58350 0.2075 0.3820 0.06202 2018 8 21 58351 0.2078 0.3807 0.06218 2018 8 22 58352 0.2080 0.3793 0.06242 2018 8 23 58353 0.2081 0.3780 0.06269 2018 8 24 58354 0.2083 0.3767 0.06294 2018 8 25 58355 0.2084 0.3753 0.06311 2018 8 26 58356 0.2085 0.3740 0.06315 2018 8 27 58357 0.2086 0.3726 0.06305 2018 8 28 58358 0.2087 0.3713 0.06280 2018 8 29 58359 0.2087 0.3699 0.06242 2018 8 30 58360 0.2087 0.3686 0.06193 2018 8 31 58361 0.2087 0.3672 0.06139 2018 9 1 58362 0.2086 0.3658 0.06084 2018 9 2 58363 0.2085 0.3645 0.06032 2018 9 3 58364 0.2084 0.3631 0.05987 2018 9 4 58365 0.2083 0.3617 0.05947 2018 9 5 58366 0.2081 0.3604 0.05911 2018 9 6 58367 0.2079 0.3590 0.05872 2018 9 7 58368 0.2077 0.3577 0.05822 2018 9 8 58369 0.2075 0.3563 0.05756 2018 9 9 58370 0.2072 0.3549 0.05671 2018 9 10 58371 0.2069 0.3536 0.05569 2018 9 11 58372 0.2066 0.3522 0.05459 2018 9 12 58373 0.2063 0.3509 0.05349 2018 9 13 58374 0.2059 0.3496 0.05249 2018 9 14 58375 0.2055 0.3482 0.05165 2018 9 15 58376 0.2051 0.3469 0.05097 2018 9 16 58377 0.2046 0.3456 0.05044 2018 9 17 58378 0.2041 0.3442 0.05003 2018 9 18 58379 0.2036 0.3429 0.04970 2018 9 19 58380 0.2031 0.3416 0.04939 2018 9 20 58381 0.2025 0.3403 0.04905 2018 9 21 58382 0.2019 0.3390 0.04863 2018 9 22 58383 0.2013 0.3377 0.04810 2018 9 23 58384 0.2007 0.3365 0.04744 2018 9 24 58385 0.2000 0.3352 0.04664 2018 9 25 58386 0.1994 0.3339 0.04571 2018 9 26 58387 0.1986 0.3327 0.04469 2018 9 27 58388 0.1979 0.3315 0.04363 2018 9 28 58389 0.1972 0.3302 0.04259 2018 9 29 58390 0.1964 0.3290 0.04162 2018 9 30 58391 0.1956 0.3278 0.04076 2018 10 1 58392 0.1947 0.3266 0.03999 2018 10 2 58393 0.1939 0.3254 0.03930 2018 10 3 58394 0.1930 0.3243 0.03863 2018 10 4 58395 0.1921 0.3231 0.03791 2018 10 5 58396 0.1912 0.3220 0.03706 2018 10 6 58397 0.1902 0.3208 0.03604 2018 10 7 58398 0.1892 0.3197 0.03484 2018 10 8 58399 0.1883 0.3186 0.03352 2018 10 9 58400 0.1872 0.3175 0.03214 2018 10 10 58401 0.1862 0.3164 0.03082 2018 10 11 58402 0.1851 0.3154 0.02963 2018 10 12 58403 0.1841 0.3143 0.02860 2018 10 13 58404 0.1830 0.3133 0.02775 2018 10 14 58405 0.1819 0.3123 0.02706 2018 10 15 58406 0.1807 0.3113 0.02647 2018 10 16 58407 0.1796 0.3103 0.02594 2018 10 17 58408 0.1784 0.3094 0.02543 2018 10 18 58409 0.1772 0.3084 0.02486 2018 10 19 58410 0.1760 0.3075 0.02422 2018 10 20 58411 0.1747 0.3066 0.02346 2018 10 21 58412 0.1735 0.3057 0.02257 2018 10 22 58413 0.1722 0.3048 0.02155 2018 10 23 58414 0.1709 0.3040 0.02042 2018 10 24 58415 0.1696 0.3032 0.01923 2018 10 25 58416 0.1683 0.3023 0.01803 2018 10 26 58417 0.1670 0.3016 0.01688 2018 10 27 58418 0.1656 0.3008 0.01583 2018 10 28 58419 0.1642 0.3000 0.01490 2018 10 29 58420 0.1629 0.2993 0.01407 2018 10 30 58421 0.1615 0.2986 0.01328 2018 10 31 58422 0.1601 0.2979 0.01246 2018 11 1 58423 0.1586 0.2972 0.01154 2018 11 2 58424 0.1572 0.2966 0.01047 2018 11 3 58425 0.1558 0.2959 0.00924 2018 11 4 58426 0.1543 0.2953 0.00786 2018 11 5 58427 0.1528 0.2948 0.00641 2018 11 6 58428 0.1513 0.2942 0.00497 2018 11 7 58429 0.1498 0.2937 0.00362 2018 11 8 58430 0.1483 0.2931 0.00242 2018 11 9 58431 0.1468 0.2926 0.00141 2018 11 10 58432 0.1453 0.2922 0.00056 2018 11 11 58433 0.1438 0.2917 -0.00014 2018 11 12 58434 0.1422 0.2913 -0.00079 2018 11 13 58435 0.1407 0.2909 -0.00140 2018 11 14 58436 0.1391 0.2905 -0.00202 2018 11 15 58437 0.1376 0.2902 -0.00270 2018 11 16 58438 0.1360 0.2898 -0.00347 2018 11 17 58439 0.1344 0.2895 -0.00436 2018 11 18 58440 0.1328 0.2893 -0.00537 2018 11 19 58441 0.1312 0.2890 -0.00649 2018 11 20 58442 0.1297 0.2888 -0.00768 2018 11 21 58443 0.1281 0.2886 -0.00891 2018 11 22 58444 0.1265 0.2884 -0.01010 2018 11 23 58445 0.1249 0.2882 -0.01121 2018 11 24 58446 0.1232 0.2881 -0.01219 2018 11 25 58447 0.1216 0.2880 -0.01303 2018 11 26 58448 0.1200 0.2879 -0.01379 2018 11 27 58449 0.1184 0.2878 -0.01454 2018 11 28 58450 0.1168 0.2878 -0.01534 2018 11 29 58451 0.1152 0.2878 -0.01625 2018 11 30 58452 0.1136 0.2878 -0.01731 2018 12 1 58453 0.1120 0.2878 -0.01848 2018 12 2 58454 0.1104 0.2879 -0.01971 2018 12 3 58455 0.1087 0.2879 -0.02094 2018 12 4 58456 0.1071 0.2881 -0.02210 2018 12 5 58457 0.1055 0.2882 -0.02313 2018 12 6 58458 0.1039 0.2883 -0.02399 2018 12 7 58459 0.1023 0.2885 -0.02469 2018 12 8 58460 0.1007 0.2887 -0.02524 2018 12 9 58461 0.0991 0.2890 -0.02568 2018 12 10 58462 0.0976 0.2892 -0.02606 2018 12 11 58463 0.0960 0.2895 -0.02643 2018 12 12 58464 0.0944 0.2898 -0.02685 2018 12 13 58465 0.0928 0.2901 -0.02735 2018 12 14 58466 0.0913 0.2905 -0.02796 2018 12 15 58467 0.0897 0.2909 -0.02868 2018 12 16 58468 0.0882 0.2913 -0.02952 2018 12 17 58469 0.0866 0.2917 -0.03045 2018 12 18 58470 0.0851 0.2922 -0.03144 2018 12 19 58471 0.0836 0.2926 -0.03244 2018 12 20 58472 0.0821 0.2931 -0.03339 2018 12 21 58473 0.0806 0.2936 -0.03425 2018 12 22 58474 0.0791 0.2942 -0.03498 2018 12 23 58475 0.0776 0.2948 -0.03562 2018 12 24 58476 0.0762 0.2953 -0.03623 2018 12 25 58477 0.0747 0.2960 -0.03688 2018 12 26 58478 0.0733 0.2966 -0.03765 2018 12 27 58479 0.0718 0.2972 -0.03857 2018 12 28 58480 0.0704 0.2979 -0.03962 2018 12 29 58481 0.0690 0.2986 -0.04075 2018 12 30 58482 0.0676 0.2994 -0.04187 2018 12 31 58483 0.0663 0.3001 -0.04292 2019 1 1 58484 0.0649 0.3009 -0.04385 2019 1 2 58485 0.0636 0.3017 -0.04461 2019 1 3 58486 0.0622 0.3025 -0.04521 2019 1 4 58487 0.0609 0.3033 -0.04567 2019 1 5 58488 0.0596 0.3041 -0.04601 2019 1 6 58489 0.0584 0.3050 -0.04629 2019 1 7 58490 0.0571 0.3059 -0.04656 2019 1 8 58491 0.0559 0.3068 -0.04685 2019 1 9 58492 0.0547 0.3077 -0.04722 2019 1 10 58493 0.0535 0.3087 -0.04769 2019 1 11 58494 0.0523 0.3097 -0.04827 2019 1 12 58495 0.0511 0.3106 -0.04897 2019 1 13 58496 0.0500 0.3116 -0.04976 2019 1 14 58497 0.0488 0.3127 -0.05061 2019 1 15 58498 0.0477 0.3137 -0.05148 2019 1 16 58499 0.0467 0.3148 -0.05233 2019 1 17 58500 0.0456 0.3158 -0.05312 2019 1 18 58501 0.0446 0.3169 -0.05380 2019 1 19 58502 0.0435 0.3180 -0.05439 2019 1 20 58503 0.0425 0.3192 -0.05492 2019 1 21 58504 0.0416 0.3203 -0.05548 2019 1 22 58505 0.0406 0.3215 -0.05614 2019 1 23 58506 0.0397 0.3226 -0.05696 2019 1 24 58507 0.0388 0.3238 -0.05793 2019 1 25 58508 0.0379 0.3250 -0.05900 2019 1 26 58509 0.0371 0.3262 -0.06008 2019 1 27 58510 0.0362 0.3275 -0.06108 2019 1 28 58511 0.0354 0.3287 -0.06191 2019 1 29 58512 0.0347 0.3299 -0.06254 2019 1 30 58513 0.0339 0.3312 -0.06298 2019 1 31 58514 0.0332 0.3325 -0.06325 2019 2 1 58515 0.0325 0.3338 -0.06340 2019 2 2 58516 0.0318 0.3351 -0.06351 2019 2 3 58517 0.0311 0.3364 -0.06364 2019 2 4 58518 0.0305 0.3377 -0.06388 2019 2 5 58519 0.0299 0.3391 -0.06426 2019 2 6 58520 0.0293 0.3404 -0.06482 2019 2 7 58521 0.0288 0.3418 -0.06558 2019 2 8 58522 0.0283 0.3431 -0.06653 2019 2 9 58523 0.0278 0.3445 -0.06764 2019 2 10 58524 0.0273 0.3459 -0.06884 2019 2 11 58525 0.0269 0.3473 -0.07008 2019 2 12 58526 0.0265 0.3487 -0.07130 2019 2 13 58527 0.0261 0.3501 -0.07242 2019 2 14 58528 0.0257 0.3515 -0.07340 2019 2 15 58529 0.0254 0.3529 -0.07422 2019 2 16 58530 0.0251 0.3543 -0.07491 2019 2 17 58531 0.0248 0.3557 -0.07556 2019 2 18 58532 0.0246 0.3572 -0.07625 2019 2 19 58533 0.0244 0.3586 -0.07708 2019 2 20 58534 0.0242 0.3601 -0.07811 2019 2 21 58535 0.0240 0.3615 -0.07930 2019 2 22 58536 0.0239 0.3629 -0.08059 2019 2 23 58537 0.0238 0.3644 -0.08187 2019 2 24 58538 0.0237 0.3659 -0.08303 2019 2 25 58539 0.0237 0.3673 -0.08403 2019 2 26 58540 0.0237 0.3688 -0.08485 2019 2 27 58541 0.0237 0.3702 -0.08553 2019 2 28 58542 0.0238 0.3717 -0.08614 2019 3 1 58543 0.0238 0.3731 -0.08673 2019 3 2 58544 0.0239 0.3746 -0.08735 2019 3 3 58545 0.0241 0.3761 -0.08803 2019 3 4 58546 0.0242 0.3775 -0.08878 2019 3 5 58547 0.0244 0.3790 -0.08965 2019 3 6 58548 0.0246 0.3804 -0.09067 2019 3 7 58549 0.0249 0.3819 -0.09183 2019 3 8 58550 0.0252 0.3833 -0.09306 2019 3 9 58551 0.0255 0.3848 -0.09438 2019 3 10 58552 0.0258 0.3862 -0.09574 2019 3 11 58553 0.0262 0.3876 -0.09707 2019 3 12 58554 0.0265 0.3891 -0.09834 2019 3 13 58555 0.0270 0.3905 -0.09956 2019 3 14 58556 0.0274 0.3919 -0.10071 2019 3 15 58557 0.0279 0.3933 -0.10176 2019 3 16 58558 0.0284 0.3947 -0.10282 2019 3 17 58559 0.0289 0.3961 -0.10401 2019 3 18 58560 0.0295 0.3975 -0.10532 2019 3 19 58561 0.0301 0.3989 -0.10683 2019 3 20 58562 0.0307 0.4003 -0.10859 2019 3 21 58563 0.0313 0.4017 -0.11051 2019 3 22 58564 0.0320 0.4030 -0.11249 2019 3 23 58565 0.0327 0.4044 -0.11450 2019 3 24 58566 0.0334 0.4057 -0.11639 2019 3 25 58567 0.0341 0.4070 -0.11812 2019 3 26 58568 0.0349 0.4084 -0.11967 2019 3 27 58569 0.0357 0.4097 -0.12107 2019 3 28 58570 0.0365 0.4110 -0.12234 2019 3 29 58571 0.0374 0.4123 -0.12352 2019 3 30 58572 0.0383 0.4135 -0.12470 2019 3 31 58573 0.0392 0.4148 -0.12592 2019 4 1 58574 0.0401 0.4160 -0.12720 2019 4 2 58575 0.0410 0.4173 -0.12853 2019 4 3 58576 0.0420 0.4185 -0.12992 2019 4 4 58577 0.0430 0.4197 -0.13141 2019 4 5 58578 0.0440 0.4209 -0.13299 2019 4 6 58579 0.0451 0.4221 -0.13456 2019 4 7 58580 0.0461 0.4232 -0.13609 2019 4 8 58581 0.0472 0.4244 -0.13755 2019 4 9 58582 0.0483 0.4255 -0.13885 2019 4 10 58583 0.0495 0.4266 -0.13996 2019 4 11 58584 0.0506 0.4277 -0.14094 2019 4 12 58585 0.0518 0.4288 -0.14192 2019 4 13 58586 0.0530 0.4299 -0.14295 2019 4 14 58587 0.0542 0.4309 -0.14406 2019 4 15 58588 0.0555 0.4319 -0.14531 2019 4 16 58589 0.0567 0.4329 -0.14676 2019 4 17 58590 0.0580 0.4339 -0.14846 2019 4 18 58591 0.0593 0.4349 -0.15034 2019 4 19 58592 0.0606 0.4358 -0.15221 2019 4 20 58593 0.0620 0.4368 -0.15398 2019 4 21 58594 0.0633 0.4377 -0.15560 2019 4 22 58595 0.0647 0.4386 -0.15703 2019 4 23 58596 0.0661 0.4395 -0.15825 2019 4 24 58597 0.0675 0.4403 -0.15927 2019 4 25 58598 0.0689 0.4411 -0.16013 2019 4 26 58599 0.0703 0.4419 -0.16091 2019 4 27 58600 0.0718 0.4427 -0.16167 2019 4 28 58601 0.0733 0.4435 -0.16248 2019 4 29 58602 0.0747 0.4442 -0.16330 2019 4 30 58603 0.0762 0.4450 -0.16424 2019 5 1 58604 0.0777 0.4457 -0.16529 2019 5 2 58605 0.0793 0.4463 -0.16644 2019 5 3 58606 0.0808 0.4470 -0.16762 2019 5 4 58607 0.0824 0.4476 -0.16878 2019 5 5 58608 0.0839 0.4482 -0.16986 2019 5 6 58609 0.0855 0.4488 -0.17086 2019 5 7 58610 0.0871 0.4494 -0.17169 2019 5 8 58611 0.0887 0.4499 -0.17248 2019 5 9 58612 0.0903 0.4504 -0.17319 2019 5 10 58613 0.0919 0.4509 -0.17388 2019 5 11 58614 0.0935 0.4513 -0.17466 2019 5 12 58615 0.0952 0.4518 -0.17557 2019 5 13 58616 0.0968 0.4522 -0.17664 2019 5 14 58617 0.0984 0.4526 -0.17791 2019 5 15 58618 0.1001 0.4529 -0.17935 2019 5 16 58619 0.1018 0.4533 -0.18077 2019 5 17 58620 0.1034 0.4536 -0.18211 2019 5 18 58621 0.1051 0.4539 -0.18330 2019 5 19 58622 0.1068 0.4541 -0.18425 2019 5 20 58623 0.1085 0.4544 -0.18493 2019 5 21 58624 0.1102 0.4546 -0.18537 2019 5 22 58625 0.1119 0.4548 -0.18562 2019 5 23 58626 0.1136 0.4549 -0.18576 2019 5 24 58627 0.1153 0.4551 -0.18588 2019 5 25 58628 0.1170 0.4552 -0.18597 2019 5 26 58629 0.1187 0.4552 -0.18612 2019 5 27 58630 0.1204 0.4553 -0.18632 2019 5 28 58631 0.1221 0.4553 -0.18662 2019 5 29 58632 0.1238 0.4553 -0.18702 2019 5 30 58633 0.1255 0.4553 -0.18748 2019 5 31 58634 0.1272 0.4552 -0.18791 2019 6 1 58635 0.1289 0.4552 -0.18832 2019 6 2 58636 0.1306 0.4551 -0.18864 2019 6 3 58637 0.1323 0.4549 -0.18882 2019 6 4 58638 0.1340 0.4548 -0.18891 2019 6 5 58639 0.1356 0.4546 -0.18894 2019 6 6 58640 0.1373 0.4544 -0.18907 2019 6 7 58641 0.1390 0.4542 -0.18927 2019 6 8 58642 0.1407 0.4539 -0.18961 2019 6 9 58643 0.1424 0.4536 -0.19002 2019 6 10 58644 0.1440 0.4533 -0.19056 2019 6 11 58645 0.1457 0.4530 -0.19118 2019 6 12 58646 0.1473 0.4526 -0.19187 2019 6 13 58647 0.1490 0.4522 -0.19257 2019 6 14 58648 0.1506 0.4518 -0.19314 2019 6 15 58649 0.1522 0.4514 -0.19358 2019 6 16 58650 0.1539 0.4509 -0.19380 2019 6 17 58651 0.1555 0.4504 -0.19388 2019 6 18 58652 0.1571 0.4499 -0.19386 2019 6 19 58653 0.1586 0.4493 -0.19372 2019 6 20 58654 0.1602 0.4488 -0.19352 2019 6 21 58655 0.1618 0.4482 -0.19326 2019 6 22 58656 0.1633 0.4476 -0.19310 2019 6 23 58657 0.1649 0.4469 -0.19301 2019 6 24 58658 0.1664 0.4463 -0.19303 2019 6 25 58659 0.1679 0.4456 -0.19315 2019 6 26 58660 0.1694 0.4449 -0.19334 2019 6 27 58661 0.1709 0.4442 -0.19357 2019 6 28 58662 0.1724 0.4434 -0.19379 2019 6 29 58663 0.1738 0.4426 -0.19395 2019 6 30 58664 0.1753 0.4418 -0.19403 2019 7 1 58665 0.1767 0.4410 -0.19396 2019 7 2 58666 0.1781 0.4401 -0.19376 2019 7 3 58667 0.1795 0.4393 -0.19349 2019 7 4 58668 0.1808 0.4384 -0.19329 2019 7 5 58669 0.1822 0.4375 -0.19322 2019 7 6 58670 0.1835 0.4365 -0.19331 2019 7 7 58671 0.1848 0.4356 -0.19351 2019 7 8 58672 0.1861 0.4346 -0.19386 2019 7 9 58673 0.1874 0.4336 -0.19424 2019 7 10 58674 0.1887 0.4326 -0.19456 2019 7 11 58675 0.1899 0.4316 -0.19477 2019 7 12 58676 0.1911 0.4305 -0.19484 2019 7 13 58677 0.1923 0.4294 -0.19476 2019 7 14 58678 0.1935 0.4283 -0.19444 2019 7 15 58679 0.1946 0.4272 -0.19402 2019 7 16 58680 0.1957 0.4261 -0.19359 2019 7 17 58681 0.1968 0.4250 -0.19312 2019 7 18 58682 0.1979 0.4238 -0.19265 2019 7 19 58683 0.1990 0.4226 -0.19231 2019 7 20 58684 0.2000 0.4214 -0.19203 2019 7 21 58685 0.2010 0.4202 -0.19191 2019 7 22 58686 0.2020 0.4190 -0.19193 2019 7 23 58687 0.2030 0.4177 -0.19205 2019 7 24 58688 0.2039 0.4164 -0.19227 2019 7 25 58689 0.2048 0.4152 -0.19254 2019 7 26 58690 0.2057 0.4139 -0.19285 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) 58299 -108.18 0.24 -11.90 0.03 58300 -108.32 0.24 -11.80 0.03 58301 -108.55 0.24 -11.78 0.03 58302 -108.66 0.32 -11.78 0.16 58303 -108.57 0.14 -11.72 0.03 58304 -108.50 0.14 -11.59 0.03 58305 -108.82 0.14 -11.52 0.03 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58299 -0.168 0.094 0.008 0.026 58300 -0.153 0.094 0.009 0.026 58301 -0.137 0.094 0.006 0.026 58302 -0.120 0.128 -0.000 0.160 58303 -0.103 0.056 -0.010 0.034 58304 -0.085 0.056 -0.021 0.034 58305 -0.068 0.056 -0.033 0.034 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).