********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 3 September 2026 Vol. XXXIX No. 036 ______________________________________________________________________ GENERAL INFORMATION: 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 = 0.0 seconds beginning 09 April 2026 at 0000 UTC Beginning 1 January 2017: TAI-UTC = 37.000 000 seconds *********************************************************************** * ANNOUNCEMENTS: * * * * There will NOT be a leap second introduced in UTC * * at the end of December 2026. * * * * The primary source for IERS Rapid Service/Prediction Center (RS/PC) * * data products is the official IERS RS/PC website: * * https://maia.usno.navy.mil * * * * IERS RS/PC products are also available from: * * NASA CDDIS: https://cddis.nasa.gov/archive/products/iers/ * * NASA CDDIS: ftps://gdc.cddis.eosdis.nasa.gov/products/iers/ * * IERS Central Bureau: https://datacenter.iers.org/eop.php * * * * Questions about IERS RS/PC products can be emailed to: * * eopcp@us.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 26 8 28 61280 0.21281 .00009 0.34142 .00009 0.005905 0.000019 26 8 29 61281 0.21250 .00009 0.34060 .00009 0.005076 0.000021 26 8 30 61282 0.21207 .00009 0.33996 .00009 0.004165 0.000021 26 8 31 61283 0.21147 .00009 0.33955 .00009 0.003271 0.000020 26 9 1 61284 0.21080 .00009 0.33933 .00009 0.002418 0.000020 26 9 2 61285 0.20989 .00009 0.33909 .00009 0.001721 0.000019 26 9 3 61286 0.20872 .00009 0.33864 .00009 0.001234 0.000015 IERS Final Values MJD x y UT1-UTC " " s 26 7 2 61223 0.2054 0.3885 0.01483 26 7 3 61224 0.2057 0.3877 0.01489 26 7 4 61225 0.2062 0.3865 0.01467 26 7 5 61226 0.2075 0.3852 0.01422 26 7 6 61227 0.2092 0.3847 0.01361 26 7 7 61228 0.2105 0.3841 0.01293 26 7 8 61229 0.2116 0.3838 0.01223 26 7 9 61230 0.2119 0.3833 0.01166 26 7 10 61231 0.2120 0.3826 0.01133 26 7 11 61232 0.2117 0.3822 0.01129 26 7 12 61233 0.2117 0.3814 0.01144 26 7 13 61234 0.2119 0.3803 0.01168 26 7 14 61235 0.2122 0.3790 0.01183 26 7 15 61236 0.2127 0.3777 0.01179 26 7 16 61237 0.2129 0.3765 0.01154 26 7 17 61238 0.2138 0.3752 0.01107 26 7 18 61239 0.2149 0.3744 0.01047 26 7 19 61240 0.2153 0.3733 0.00989 26 7 20 61241 0.2155 0.3723 0.00944 26 7 21 61242 0.2159 0.3714 0.00921 26 7 22 61243 0.2171 0.3708 0.00919 26 7 23 61244 0.2179 0.3701 0.00936 26 7 24 61245 0.2186 0.3695 0.00974 26 7 25 61246 0.2192 0.3691 0.01027 26 7 26 61247 0.2193 0.3687 0.01090 26 7 27 61248 0.2194 0.3682 0.01159 26 7 28 61249 0.2191 0.3673 0.01220 26 7 29 61250 0.2192 0.3663 0.01268 26 7 30 61251 0.2197 0.3658 0.01294 26 7 31 61252 0.2204 0.3653 0.01294 26 8 1 61253 0.2215 0.3649 0.01271 _______________________________________________________________________ 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 = 0.1509 + 0.1109 cos A - 0.0485 sin A - 0.0610 cos C - 0.0072 sin C y = 0.3790 - 0.0386 cos A - 0.1027 sin A - 0.0072 cos C + 0.0610 sin C UT1-UTC = -0.0737 - 0.00024 (MJD - 61294) - (UT2-UT1) where A = 2*pi*(MJD-61286)/365.25 and C = 2*pi*(MJD-61286)/435. TAI-UTC(MJD 61287) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-61286)**0.80 S t = 0.00025 (MJD-61286)**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) 2026 9 4 61287 0.2076 0.3380 0.00086 2026 9 5 61288 0.2065 0.3372 0.00064 2026 9 6 61289 0.2056 0.3364 0.00045 2026 9 7 61290 0.2047 0.3356 0.00013 2026 9 8 61291 0.2039 0.3348 -0.00043 2026 9 9 61292 0.2032 0.3341 -0.00128 2026 9 10 61293 0.2024 0.3334 -0.00240 2026 9 11 61294 0.2016 0.3327 -0.00370 2026 9 12 61295 0.2008 0.3321 -0.00506 2026 9 13 61296 0.1999 0.3315 -0.00636 2026 9 14 61297 0.1990 0.3308 -0.00748 2026 9 15 61298 0.1981 0.3302 -0.00838 2026 9 16 61299 0.1972 0.3295 -0.00905 2026 9 17 61300 0.1963 0.3289 -0.00950 2026 9 18 61301 0.1954 0.3282 -0.00981 2026 9 19 61302 0.1945 0.3276 -0.01007 2026 9 20 61303 0.1935 0.3269 -0.01036 2026 9 21 61304 0.1926 0.3263 -0.01076 2026 9 22 61305 0.1917 0.3257 -0.01135 2026 9 23 61306 0.1907 0.3251 -0.01215 2026 9 24 61307 0.1897 0.3245 -0.01321 2026 9 25 61308 0.1887 0.3239 -0.01451 2026 9 26 61309 0.1877 0.3234 -0.01600 2026 9 27 61310 0.1867 0.3228 -0.01756 2026 9 28 61311 0.1857 0.3223 -0.01907 2026 9 29 61312 0.1846 0.3217 -0.02042 2026 9 30 61313 0.1836 0.3212 -0.02154 2026 10 1 61314 0.1825 0.3207 -0.02241 2026 10 2 61315 0.1814 0.3202 -0.02310 2026 10 3 61316 0.1804 0.3197 -0.02373 2026 10 4 61317 0.1793 0.3193 -0.02440 2026 10 5 61318 0.1782 0.3188 -0.02525 2026 10 6 61319 0.1770 0.3184 -0.02634 2026 10 7 61320 0.1759 0.3179 -0.02768 2026 10 8 61321 0.1747 0.3175 -0.02920 2026 10 9 61322 0.1736 0.3171 -0.03083 2026 10 10 61323 0.1724 0.3167 -0.03245 2026 10 11 61324 0.1712 0.3164 -0.03396 2026 10 12 61325 0.1701 0.3160 -0.03528 2026 10 13 61326 0.1689 0.3157 -0.03639 2026 10 14 61327 0.1676 0.3154 -0.03730 2026 10 15 61328 0.1664 0.3151 -0.03805 2026 10 16 61329 0.1652 0.3148 -0.03872 2026 10 17 61330 0.1640 0.3145 -0.03937 2026 10 18 61331 0.1627 0.3143 -0.04006 2026 10 19 61332 0.1614 0.3141 -0.04087 2026 10 20 61333 0.1602 0.3138 -0.04185 2026 10 21 61334 0.1589 0.3137 -0.04303 2026 10 22 61335 0.1576 0.3135 -0.04442 2026 10 23 61336 0.1563 0.3133 -0.04600 2026 10 24 61337 0.1550 0.3132 -0.04769 2026 10 25 61338 0.1537 0.3131 -0.04939 2026 10 26 61339 0.1524 0.3130 -0.05098 2026 10 27 61340 0.1511 0.3129 -0.05236 2026 10 28 61341 0.1498 0.3128 -0.05347 2026 10 29 61342 0.1485 0.3128 -0.05437 2026 10 30 61343 0.1472 0.3127 -0.05515 2026 10 31 61344 0.1458 0.3127 -0.05594 2026 11 1 61345 0.1445 0.3127 -0.05688 2026 11 2 61346 0.1431 0.3128 -0.05804 2026 11 3 61347 0.1418 0.3128 -0.05943 2026 11 4 61348 0.1404 0.3129 -0.06100 2026 11 5 61349 0.1391 0.3130 -0.06266 2026 11 6 61350 0.1377 0.3131 -0.06431 2026 11 7 61351 0.1364 0.3132 -0.06585 2026 11 8 61352 0.1350 0.3134 -0.06720 2026 11 9 61353 0.1337 0.3135 -0.06833 2026 11 10 61354 0.1323 0.3137 -0.06923 2026 11 11 61355 0.1310 0.3139 -0.06993 2026 11 12 61356 0.1296 0.3142 -0.07049 2026 11 13 61357 0.1282 0.3144 -0.07098 2026 11 14 61358 0.1269 0.3147 -0.07147 2026 11 15 61359 0.1255 0.3150 -0.07205 2026 11 16 61360 0.1242 0.3153 -0.07276 2026 11 17 61361 0.1228 0.3156 -0.07364 2026 11 18 61362 0.1215 0.3160 -0.07471 2026 11 19 61363 0.1201 0.3163 -0.07596 2026 11 20 61364 0.1188 0.3167 -0.07734 2026 11 21 61365 0.1175 0.3171 -0.07877 2026 11 22 61366 0.1161 0.3176 -0.08013 2026 11 23 61367 0.1148 0.3180 -0.08132 2026 11 24 61368 0.1135 0.3185 -0.08225 2026 11 25 61369 0.1121 0.3190 -0.08292 2026 11 26 61370 0.1108 0.3195 -0.08340 2026 11 27 61371 0.1095 0.3200 -0.08384 2026 11 28 61372 0.1082 0.3206 -0.08437 2026 11 29 61373 0.1069 0.3212 -0.08509 2026 11 30 61374 0.1056 0.3217 -0.08603 2026 12 1 61375 0.1044 0.3224 -0.08715 2026 12 2 61376 0.1031 0.3230 -0.08834 2026 12 3 61377 0.1018 0.3236 -0.08951 2026 12 4 61378 0.1006 0.3243 -0.09057 2026 12 5 61379 0.0994 0.3250 -0.09143 2026 12 6 61380 0.0981 0.3257 -0.09208 2026 12 7 61381 0.0969 0.3264 -0.09249 2026 12 8 61382 0.0957 0.3272 -0.09271 2026 12 9 61383 0.0945 0.3279 -0.09277 2026 12 10 61384 0.0933 0.3287 -0.09275 2026 12 11 61385 0.0921 0.3295 -0.09273 2026 12 12 61386 0.0910 0.3303 -0.09277 2026 12 13 61387 0.0898 0.3312 -0.09293 2026 12 14 61388 0.0887 0.3320 -0.09326 2026 12 15 61389 0.0876 0.3329 -0.09376 2026 12 16 61390 0.0864 0.3338 -0.09443 2026 12 17 61391 0.0854 0.3347 -0.09522 2026 12 18 61392 0.0843 0.3356 -0.09609 2026 12 19 61393 0.0832 0.3365 -0.09693 2026 12 20 61394 0.0822 0.3375 -0.09766 2026 12 21 61395 0.0811 0.3385 -0.09840 2026 12 22 61396 0.0801 0.3395 -0.09890 2026 12 23 61397 0.0791 0.3405 -0.09919 2026 12 24 61398 0.0781 0.3415 -0.09940 2026 12 25 61399 0.0772 0.3425 -0.09966 2026 12 26 61400 0.0762 0.3436 -0.10011 2026 12 27 61401 0.0753 0.3446 -0.10082 2026 12 28 61402 0.0744 0.3457 -0.10176 2026 12 29 61403 0.0735 0.3468 -0.10283 2026 12 30 61404 0.0726 0.3479 -0.10390 2026 12 31 61405 0.0717 0.3491 -0.10487 2027 1 1 61406 0.0709 0.3502 -0.10565 2027 1 2 61407 0.0701 0.3513 -0.10620 2027 1 3 61408 0.0693 0.3525 -0.10653 2027 1 4 61409 0.0685 0.3537 -0.10666 2027 1 5 61410 0.0678 0.3549 -0.10664 2027 1 6 61411 0.0670 0.3561 -0.10653 2027 1 7 61412 0.0663 0.3573 -0.10640 2027 1 8 61413 0.0656 0.3585 -0.10633 2027 1 9 61414 0.0649 0.3598 -0.10638 2027 1 10 61415 0.0643 0.3610 -0.10659 2027 1 11 61416 0.0637 0.3623 -0.10699 2027 1 12 61417 0.0631 0.3635 -0.10757 2027 1 13 61418 0.0625 0.3648 -0.10829 2027 1 14 61419 0.0619 0.3661 -0.10909 2027 1 15 61420 0.0614 0.3674 -0.10989 2027 1 16 61421 0.0609 0.3687 -0.11062 2027 1 17 61422 0.0604 0.3701 -0.11119 2027 1 18 61423 0.0599 0.3714 -0.11155 2027 1 19 61424 0.0595 0.3727 -0.11172 2027 1 20 61425 0.0591 0.3741 -0.11177 2027 1 21 61426 0.0587 0.3754 -0.11183 2027 1 22 61427 0.0583 0.3768 -0.11207 2027 1 23 61428 0.0580 0.3781 -0.11256 2027 1 24 61429 0.0577 0.3795 -0.11335 2027 1 25 61430 0.0574 0.3809 -0.11435 2027 1 26 61431 0.0571 0.3823 -0.11544 2027 1 27 61432 0.0569 0.3836 -0.11647 2027 1 28 61433 0.0566 0.3850 -0.11732 2027 1 29 61434 0.0565 0.3864 -0.11794 2027 1 30 61435 0.0563 0.3878 -0.11832 2027 1 31 61436 0.0562 0.3892 -0.11849 2027 2 1 61437 0.0561 0.3907 -0.11850 2027 2 2 61438 0.0560 0.3921 -0.11840 2027 2 3 61439 0.0559 0.3935 -0.11828 2027 2 4 61440 0.0559 0.3949 -0.11821 2027 2 5 61441 0.0559 0.3963 -0.11825 2027 2 6 61442 0.0559 0.3977 -0.11846 2027 2 7 61443 0.0560 0.3992 -0.11887 2027 2 8 61444 0.0560 0.4006 -0.11948 2027 2 9 61445 0.0561 0.4020 -0.12024 2027 2 10 61446 0.0563 0.4034 -0.12111 2027 2 11 61447 0.0564 0.4048 -0.12200 2027 2 12 61448 0.0566 0.4063 -0.12282 2027 2 13 61449 0.0568 0.4077 -0.12350 2027 2 14 61450 0.0571 0.4091 -0.12399 2027 2 15 61451 0.0573 0.4105 -0.12429 2027 2 16 61452 0.0576 0.4119 -0.12446 2027 2 17 61453 0.0580 0.4133 -0.12460 2027 2 18 61454 0.0583 0.4147 -0.12486 2027 2 19 61455 0.0587 0.4161 -0.12536 2027 2 20 61456 0.0591 0.4175 -0.12616 2027 2 21 61457 0.0595 0.4189 -0.12724 2027 2 22 61458 0.0600 0.4203 -0.12850 2027 2 23 61459 0.0604 0.4217 -0.12980 2027 2 24 61460 0.0610 0.4231 -0.13098 2027 2 25 61461 0.0615 0.4244 -0.13195 2027 2 26 61462 0.0621 0.4258 -0.13267 2027 2 27 61463 0.0627 0.4271 -0.13316 2027 2 28 61464 0.0633 0.4285 -0.13347 2027 3 1 61465 0.0639 0.4298 -0.13367 2027 3 2 61466 0.0646 0.4312 -0.13384 2027 3 3 61467 0.0653 0.4325 -0.13404 2027 3 4 61468 0.0660 0.4338 -0.13436 2027 3 5 61469 0.0668 0.4351 -0.13486 2027 3 6 61470 0.0675 0.4364 -0.13558 2027 3 7 61471 0.0683 0.4377 -0.13652 2027 3 8 61472 0.0691 0.4390 -0.13766 2027 3 9 61473 0.0700 0.4402 -0.13893 2027 3 10 61474 0.0709 0.4415 -0.14025 2027 3 11 61475 0.0718 0.4427 -0.14149 2027 3 12 61476 0.0727 0.4439 -0.14257 2027 3 13 61477 0.0737 0.4452 -0.14339 2027 3 14 61478 0.0746 0.4464 -0.14394 2027 3 15 61479 0.0756 0.4475 -0.14427 2027 3 16 61480 0.0766 0.4487 -0.14449 2027 3 17 61481 0.0777 0.4499 -0.14473 2027 3 18 61482 0.0788 0.4510 -0.14512 2027 3 19 61483 0.0799 0.4522 -0.14577 2027 3 20 61484 0.0810 0.4533 -0.14670 2027 3 21 61485 0.0821 0.4544 -0.14784 2027 3 22 61486 0.0833 0.4555 -0.14908 2027 3 23 61487 0.0845 0.4565 -0.15026 2027 3 24 61488 0.0857 0.4576 -0.15125 2027 3 25 61489 0.0869 0.4586 -0.15198 2027 3 26 61490 0.0881 0.4596 -0.15241 2027 3 27 61491 0.0894 0.4606 -0.15259 2027 3 28 61492 0.0907 0.4616 -0.15257 2027 3 29 61493 0.0920 0.4626 -0.15245 2027 3 30 61494 0.0933 0.4635 -0.15232 2027 3 31 61495 0.0947 0.4645 -0.15225 2027 4 1 61496 0.0961 0.4654 -0.15231 2027 4 2 61497 0.0975 0.4662 -0.15255 2027 4 3 61498 0.0989 0.4671 -0.15297 2027 4 4 61499 0.1003 0.4680 -0.15356 2027 4 5 61500 0.1017 0.4688 -0.15428 2027 4 6 61501 0.1032 0.4696 -0.15506 2027 4 7 61502 0.1047 0.4704 -0.15580 2027 4 8 61503 0.1062 0.4712 -0.15643 2027 4 9 61504 0.1077 0.4719 -0.15688 2027 4 10 61505 0.1092 0.4726 -0.15714 2027 4 11 61506 0.1108 0.4733 -0.15723 2027 4 12 61507 0.1123 0.4740 -0.15724 2027 4 13 61508 0.1139 0.4747 -0.15728 2027 4 14 61509 0.1155 0.4753 -0.15747 2027 4 15 61510 0.1171 0.4759 -0.15793 2027 4 16 61511 0.1187 0.4765 -0.15867 2027 4 17 61512 0.1203 0.4770 -0.15964 2027 4 18 61513 0.1220 0.4776 -0.16079 2027 4 19 61514 0.1236 0.4781 -0.16197 2027 4 20 61515 0.1253 0.4786 -0.16304 2027 4 21 61516 0.1270 0.4791 -0.16396 2027 4 22 61517 0.1287 0.4795 -0.16458 2027 4 23 61518 0.1304 0.4799 -0.16503 2027 4 24 61519 0.1321 0.4803 -0.16523 2027 4 25 61520 0.1338 0.4807 -0.16537 2027 4 26 61521 0.1355 0.4810 -0.16542 2027 4 27 61522 0.1373 0.4814 -0.16548 2027 4 28 61523 0.1390 0.4817 -0.16560 2027 4 29 61524 0.1408 0.4819 -0.16590 2027 4 30 61525 0.1426 0.4822 -0.16643 2027 5 1 61526 0.1443 0.4824 -0.16707 2027 5 2 61527 0.1461 0.4826 -0.16780 2027 5 3 61528 0.1479 0.4827 -0.16857 2027 5 4 61529 0.1497 0.4829 -0.16933 2027 5 5 61530 0.1515 0.4830 -0.16995 2027 5 6 61531 0.1533 0.4831 -0.17036 2027 5 7 61532 0.1551 0.4831 -0.17055 2027 5 8 61533 0.1569 0.4832 -0.17056 2027 5 9 61534 0.1587 0.4832 -0.17042 2027 5 10 61535 0.1605 0.4832 -0.17029 2027 5 11 61536 0.1623 0.4831 -0.17023 2027 5 12 61537 0.1641 0.4830 -0.17036 2027 5 13 61538 0.1659 0.4829 -0.17078 2027 5 14 61539 0.1678 0.4828 -0.17141 2027 5 15 61540 0.1696 0.4827 -0.17220 2027 5 16 61541 0.1714 0.4825 -0.17303 2027 5 17 61542 0.1732 0.4823 -0.17382 2027 5 18 61543 0.1750 0.4820 -0.17439 2027 5 19 61544 0.1768 0.4818 -0.17475 2027 5 20 61545 0.1786 0.4815 -0.17480 2027 5 21 61546 0.1804 0.4812 -0.17464 2027 5 22 61547 0.1822 0.4808 -0.17435 2027 5 23 61548 0.1840 0.4805 -0.17397 2027 5 24 61549 0.1858 0.4801 -0.17351 2027 5 25 61550 0.1876 0.4797 -0.17306 2027 5 26 61551 0.1894 0.4792 -0.17272 2027 5 27 61552 0.1912 0.4787 -0.17257 2027 5 28 61553 0.1930 0.4782 -0.17259 2027 5 29 61554 0.1947 0.4777 -0.17274 2027 5 30 61555 0.1965 0.4772 -0.17300 2027 5 31 61556 0.1982 0.4766 -0.17321 2027 6 1 61557 0.2000 0.4760 -0.17337 2027 6 2 61558 0.2017 0.4753 -0.17332 2027 6 3 61559 0.2034 0.4747 -0.17307 2027 6 4 61560 0.2051 0.4740 -0.17262 2027 6 5 61561 0.2068 0.4733 -0.17193 2027 6 6 61562 0.2085 0.4726 -0.17124 2027 6 7 61563 0.2102 0.4718 -0.17061 2027 6 8 61564 0.2119 0.4710 -0.17012 2027 6 9 61565 0.2135 0.4702 -0.16989 2027 6 10 61566 0.2151 0.4694 -0.16985 2027 6 11 61567 0.2168 0.4685 -0.16992 2027 6 12 61568 0.2184 0.4676 -0.17004 2027 6 13 61569 0.2200 0.4667 -0.17014 2027 6 14 61570 0.2216 0.4658 -0.17013 2027 6 15 61571 0.2231 0.4648 -0.16986 2027 6 16 61572 0.2247 0.4639 -0.16931 2027 6 17 61573 0.2262 0.4629 -0.16854 2027 6 18 61574 0.2277 0.4618 -0.16765 2027 6 19 61575 0.2292 0.4608 -0.16671 2027 6 20 61576 0.2307 0.4597 -0.16583 2027 6 21 61577 0.2322 0.4586 -0.16496 2027 6 22 61578 0.2336 0.4575 -0.16426 2027 6 23 61579 0.2350 0.4564 -0.16371 2027 6 24 61580 0.2364 0.4552 -0.16335 2027 6 25 61581 0.2378 0.4540 -0.16317 2027 6 26 61582 0.2392 0.4528 -0.16308 2027 6 27 61583 0.2405 0.4516 -0.16302 2027 6 28 61584 0.2419 0.4504 -0.16285 2027 6 29 61585 0.2432 0.4491 -0.16254 2027 6 30 61586 0.2444 0.4478 -0.16202 2027 7 1 61587 0.2457 0.4465 -0.16130 2027 7 2 61588 0.2469 0.4452 -0.16038 2027 7 3 61589 0.2481 0.4439 -0.15932 2027 7 4 61590 0.2493 0.4425 -0.15827 2027 7 5 61591 0.2505 0.4411 -0.15731 2027 7 6 61592 0.2516 0.4397 -0.15664 2027 7 7 61593 0.2527 0.4383 -0.15627 2027 7 8 61594 0.2538 0.4369 -0.15616 2027 7 9 61595 0.2549 0.4355 -0.15615 2027 7 10 61596 0.2559 0.4340 -0.15598 2027 7 11 61597 0.2569 0.4325 -0.15560 2027 7 12 61598 0.2579 0.4310 -0.15508 2027 7 13 61599 0.2589 0.4295 -0.15426 2027 7 14 61600 0.2598 0.4280 -0.15320 2027 7 15 61601 0.2607 0.4265 -0.15195 2027 7 16 61602 0.2616 0.4249 -0.15063 2027 7 17 61603 0.2624 0.4234 -0.14923 2027 7 18 61604 0.2633 0.4218 -0.14789 2027 7 19 61605 0.2641 0.4202 -0.14669 2027 7 20 61606 0.2648 0.4186 -0.14563 2027 7 21 61607 0.2656 0.4170 -0.14470 2027 7 22 61608 0.2663 0.4153 -0.14400 2027 7 23 61609 0.2669 0.4137 -0.14349 2027 7 24 61610 0.2676 0.4121 -0.14301 2027 7 25 61611 0.2682 0.4104 -0.14254 2027 7 26 61612 0.2688 0.4087 -0.14193 2027 7 27 61613 0.2693 0.4071 -0.14114 2027 7 28 61614 0.2699 0.4054 -0.14019 2027 7 29 61615 0.2703 0.4037 -0.13911 2027 7 30 61616 0.2708 0.4020 -0.13784 2027 7 31 61617 0.2712 0.4003 -0.13666 2027 8 1 61618 0.2716 0.3986 -0.13545 2027 8 2 61619 0.2720 0.3968 -0.13440 2027 8 3 61620 0.2723 0.3951 -0.13363 2027 8 4 61621 0.2727 0.3934 -0.13311 2027 8 5 61622 0.2729 0.3916 -0.13269 2027 8 6 61623 0.2732 0.3899 -0.13223 2027 8 7 61624 0.2734 0.3881 -0.13157 2027 8 8 61625 0.2735 0.3864 -0.13061 2027 8 9 61626 0.2737 0.3846 -0.12936 2027 8 10 61627 0.2738 0.3829 -0.12791 2027 8 11 61628 0.2739 0.3811 -0.12630 2027 8 12 61629 0.2739 0.3793 -0.12462 2027 8 13 61630 0.2739 0.3776 -0.12293 2027 8 14 61631 0.2739 0.3758 -0.12133 2027 8 15 61632 0.2739 0.3741 -0.11986 2027 8 16 61633 0.2738 0.3723 -0.11850 2027 8 17 61634 0.2737 0.3705 -0.11734 2027 8 18 61635 0.2735 0.3688 -0.11643 2027 8 19 61636 0.2733 0.3670 -0.11576 2027 8 20 61637 0.2731 0.3652 -0.11520 2027 8 21 61638 0.2729 0.3635 -0.11474 2027 8 22 61639 0.2726 0.3617 -0.11427 2027 8 23 61640 0.2723 0.3600 -0.11358 2027 8 24 61641 0.2719 0.3582 -0.11277 2027 8 25 61642 0.2715 0.3565 -0.11184 2027 8 26 61643 0.2711 0.3548 -0.11079 2027 8 27 61644 0.2707 0.3530 -0.10982 2027 8 28 61645 0.2702 0.3513 -0.10884 2027 8 29 61646 0.2697 0.3496 -0.10806 2027 8 30 61647 0.2691 0.3479 -0.10761 2027 8 31 61648 0.2686 0.3462 -0.10751 2027 9 1 61649 0.2680 0.3445 -0.10774 2027 9 2 61650 0.2673 0.3428 -0.10811 2027 9 3 61651 0.2666 0.3411 -0.10838 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) 61267 -122.34 1.23 -11.66 0.25 61268 -122.86 1.02 -11.67 0.24 61269 -123.66 1.02 -11.68 0.24 61270 -124.32 0.91 -11.75 0.23 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 61223 -117.4 -12.0 61224 -117.4 -11.9 61225 -117.5 -11.8 61226 -117.6 -11.8 61227 -117.6 -11.9 61228 -117.8 -11.9 61229 -118.1 -12.1 61230 -118.5 -12.2 61231 -118.9 -12.2 61232 -119.2 -12.2 61233 -119.2 -12.2 61234 -119.0 -12.3 61235 -118.8 -12.1 61236 -118.8 -11.9 61237 -118.9 -11.8 61238 -119.0 -11.9 61239 -119.3 -12.0 61240 -120.0 -11.8 61241 -120.8 -11.7 61242 -121.2 -11.8 61243 -121.1 -11.9 61244 -120.9 -12.0 61245 -120.7 -12.0 61246 -120.8 -11.9 61247 -121.0 -12.0 61248 -121.3 -12.1 61249 -121.5 -12.1 61250 -121.6 -11.8 61251 -121.5 -11.6 61252 -121.5 -11.5 61253 -121.6 -11.6 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 61267 0.438 0.488 -0.232 0.245 61268 0.422 0.406 -0.232 0.236 61269 0.405 0.406 -0.232 0.236 61270 0.387 0.360 -0.232 0.232 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 61223 0.34 -0.31 61224 0.33 -0.33 61225 0.34 -0.34 61226 0.35 -0.33 61227 0.35 -0.33 61228 0.36 -0.32 61229 0.36 -0.31 61230 0.37 -0.30 61231 0.38 -0.29 61232 0.38 -0.28 61233 0.38 -0.28 61234 0.38 -0.27 61235 0.38 -0.27 61236 0.37 -0.26 61237 0.36 -0.26 61238 0.35 -0.26 61239 0.34 -0.25 61240 0.34 -0.24 61241 0.34 -0.23 61242 0.34 -0.21 61243 0.37 -0.19 61244 0.41 -0.17 61245 0.44 -0.15 61246 0.43 -0.15 61247 0.40 -0.16 61248 0.36 -0.18 61249 0.33 -0.20 61250 0.33 -0.24 61251 0.35 -0.28 61252 0.37 -0.31 61253 0.38 -0.32