********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 2 July 2026 Vol. XXXIX No. 027 ______________________________________________________________________ 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 June 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 6 26 61217 0.20250 .00009 0.39365 .00009 0.011613 0.000016 26 6 27 61218 0.20320 .00009 0.39268 .00009 0.012088 0.000025 26 6 28 61219 0.20380 .00009 0.39174 .00009 0.012700 0.000027 26 6 29 61220 0.20431 .00009 0.39083 .00009 0.013357 0.000024 26 6 30 61221 0.20479 .00009 0.38993 .00009 0.013998 0.000020 26 7 1 61222 0.20522 .00009 0.38922 .00009 0.014514 0.000018 26 7 2 61223 0.20547 .00009 0.38864 .00009 0.014873 0.000017 IERS Final Values MJD x y UT1-UTC " " s 26 5 2 61162 0.1569 0.4173 0.03251 26 5 3 61163 0.1580 0.4171 0.03223 26 5 4 61164 0.1597 0.4164 0.03208 26 5 5 61165 0.1613 0.4161 0.03209 26 5 6 61166 0.1623 0.4161 0.03215 26 5 7 61167 0.1632 0.4162 0.03219 26 5 8 61168 0.1642 0.4156 0.03220 26 5 9 61169 0.1650 0.4153 0.03208 26 5 10 61170 0.1657 0.4144 0.03172 26 5 11 61171 0.1672 0.4134 0.03101 26 5 12 61172 0.1680 0.4125 0.03014 26 5 13 61173 0.1691 0.4117 0.02916 26 5 14 61174 0.1699 0.4118 0.02812 26 5 15 61175 0.1705 0.4117 0.02715 26 5 16 61176 0.1713 0.4122 0.02638 26 5 17 61177 0.1718 0.4125 0.02592 26 5 18 61178 0.1727 0.4129 0.02569 26 5 19 61179 0.1734 0.4132 0.02560 26 5 20 61180 0.1742 0.4130 0.02550 26 5 21 61181 0.1747 0.4126 0.02521 26 5 22 61182 0.1752 0.4118 0.02463 26 5 23 61183 0.1759 0.4110 0.02378 26 5 24 61184 0.1773 0.4103 0.02276 26 5 25 61185 0.1786 0.4100 0.02174 26 5 26 61186 0.1793 0.4096 0.02076 26 5 27 61187 0.1799 0.4095 0.01985 26 5 28 61188 0.1805 0.4094 0.01908 26 5 29 61189 0.1808 0.4093 0.01850 26 5 30 61190 0.1811 0.4086 0.01808 26 5 31 61191 0.1816 0.4081 0.01784 26 6 1 61192 0.1820 0.4077 0.01777 _______________________________________________________________________ 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 = 0.1443 + 0.0966 cos A + 0.0955 sin A - 0.0259 cos C - 0.0720 sin C y = 0.3687 + 0.0899 cos A - 0.0868 sin A - 0.0720 cos C + 0.0259 sin C UT1-UTC = -0.0018 - 0.00008 (MJD - 61231) - (UT2-UT1) where A = 2*pi*(MJD-61223)/365.25 and C = 2*pi*(MJD-61223)/435. TAI-UTC(MJD 61224) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-61223)**0.80 S t = 0.00025 (MJD-61223)**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 7 3 61224 0.2057 0.3879 0.01494 2026 7 4 61225 0.2060 0.3872 0.01473 2026 7 5 61226 0.2063 0.3864 0.01432 2026 7 6 61227 0.2066 0.3855 0.01375 2026 7 7 61228 0.2070 0.3846 0.01309 2026 7 8 61229 0.2074 0.3837 0.01244 2026 7 9 61230 0.2078 0.3828 0.01192 2026 7 10 61231 0.2081 0.3819 0.01162 2026 7 11 61232 0.2084 0.3811 0.01156 2026 7 12 61233 0.2087 0.3802 0.01171 2026 7 13 61234 0.2089 0.3793 0.01196 2026 7 14 61235 0.2092 0.3785 0.01218 2026 7 15 61236 0.2094 0.3776 0.01227 2026 7 16 61237 0.2096 0.3767 0.01217 2026 7 17 61238 0.2098 0.3758 0.01189 2026 7 18 61239 0.2100 0.3749 0.01151 2026 7 19 61240 0.2102 0.3740 0.01115 2026 7 20 61241 0.2104 0.3731 0.01090 2026 7 21 61242 0.2105 0.3722 0.01084 2026 7 22 61243 0.2106 0.3713 0.01099 2026 7 23 61244 0.2107 0.3704 0.01134 2026 7 24 61245 0.2108 0.3695 0.01186 2026 7 25 61246 0.2109 0.3685 0.01253 2026 7 26 61247 0.2109 0.3676 0.01327 2026 7 27 61248 0.2110 0.3667 0.01401 2026 7 28 61249 0.2110 0.3657 0.01467 2026 7 29 61250 0.2110 0.3648 0.01519 2026 7 30 61251 0.2110 0.3639 0.01550 2026 7 31 61252 0.2110 0.3629 0.01559 2026 8 1 61253 0.2109 0.3620 0.01545 2026 8 2 61254 0.2108 0.3610 0.01513 2026 8 3 61255 0.2107 0.3601 0.01471 2026 8 4 61256 0.2106 0.3591 0.01428 2026 8 5 61257 0.2105 0.3582 0.01395 2026 8 6 61258 0.2103 0.3572 0.01383 2026 8 7 61259 0.2102 0.3562 0.01394 2026 8 8 61260 0.2100 0.3553 0.01429 2026 8 9 61261 0.2098 0.3543 0.01478 2026 8 10 61262 0.2095 0.3534 0.01529 2026 8 11 61263 0.2093 0.3524 0.01566 2026 8 12 61264 0.2090 0.3515 0.01581 2026 8 13 61265 0.2087 0.3505 0.01568 2026 8 14 61266 0.2084 0.3496 0.01534 2026 8 15 61267 0.2081 0.3486 0.01490 2026 8 16 61268 0.2078 0.3477 0.01449 2026 8 17 61269 0.2074 0.3467 0.01422 2026 8 18 61270 0.2070 0.3458 0.01416 2026 8 19 61271 0.2066 0.3448 0.01434 2026 8 20 61272 0.2062 0.3439 0.01472 2026 8 21 61273 0.2057 0.3429 0.01529 2026 8 22 61274 0.2053 0.3420 0.01597 2026 8 23 61275 0.2048 0.3411 0.01671 2026 8 24 61276 0.2043 0.3402 0.01742 2026 8 25 61277 0.2037 0.3392 0.01801 2026 8 26 61278 0.2032 0.3383 0.01842 2026 8 27 61279 0.2026 0.3374 0.01862 2026 8 28 61280 0.2020 0.3365 0.01859 2026 8 29 61281 0.2014 0.3356 0.01836 2026 8 30 61282 0.2008 0.3347 0.01799 2026 8 31 61283 0.2001 0.3338 0.01760 2026 9 1 61284 0.1995 0.3330 0.01728 2026 9 2 61285 0.1988 0.3321 0.01715 2026 9 3 61286 0.1981 0.3312 0.01725 2026 9 4 61287 0.1974 0.3304 0.01756 2026 9 5 61288 0.1966 0.3295 0.01803 2026 9 6 61289 0.1959 0.3287 0.01853 2026 9 7 61290 0.1951 0.3279 0.01891 2026 9 8 61291 0.1943 0.3270 0.01908 2026 9 9 61292 0.1935 0.3262 0.01897 2026 9 10 61293 0.1926 0.3254 0.01861 2026 9 11 61294 0.1918 0.3246 0.01806 2026 9 12 61295 0.1909 0.3238 0.01747 2026 9 13 61296 0.1900 0.3231 0.01695 2026 9 14 61297 0.1891 0.3223 0.01660 2026 9 15 61298 0.1882 0.3216 0.01647 2026 9 16 61299 0.1872 0.3208 0.01657 2026 9 17 61300 0.1863 0.3201 0.01686 2026 9 18 61301 0.1853 0.3194 0.01728 2026 9 19 61302 0.1843 0.3187 0.01778 2026 9 20 61303 0.1833 0.3180 0.01826 2026 9 21 61304 0.1823 0.3173 0.01867 2026 9 22 61305 0.1812 0.3167 0.01891 2026 9 23 61306 0.1802 0.3160 0.01895 2026 9 24 61307 0.1791 0.3154 0.01874 2026 9 25 61308 0.1780 0.3148 0.01830 2026 9 26 61309 0.1769 0.3141 0.01768 2026 9 27 61310 0.1758 0.3136 0.01697 2026 9 28 61311 0.1746 0.3130 0.01628 2026 9 29 61312 0.1735 0.3124 0.01575 2026 9 30 61313 0.1723 0.3119 0.01544 2026 10 1 61314 0.1711 0.3113 0.01537 2026 10 2 61315 0.1699 0.3108 0.01548 2026 10 3 61316 0.1687 0.3103 0.01565 2026 10 4 61317 0.1675 0.3098 0.01575 2026 10 5 61318 0.1663 0.3094 0.01568 2026 10 6 61319 0.1651 0.3089 0.01536 2026 10 7 61320 0.1638 0.3085 0.01479 2026 10 8 61321 0.1625 0.3081 0.01403 2026 10 9 61322 0.1613 0.3077 0.01316 2026 10 10 61323 0.1600 0.3073 0.01232 2026 10 11 61324 0.1587 0.3069 0.01159 2026 10 12 61325 0.1574 0.3066 0.01106 2026 10 13 61326 0.1560 0.3063 0.01074 2026 10 14 61327 0.1547 0.3059 0.01062 2026 10 15 61328 0.1534 0.3057 0.01067 2026 10 16 61329 0.1520 0.3054 0.01081 2026 10 17 61330 0.1507 0.3051 0.01098 2026 10 18 61331 0.1493 0.3049 0.01109 2026 10 19 61332 0.1479 0.3047 0.01092 2026 10 20 61333 0.1465 0.3045 0.01058 2026 10 21 61334 0.1451 0.3043 0.01002 2026 10 22 61335 0.1438 0.3042 0.00923 2026 10 23 61336 0.1423 0.3040 0.00826 2026 10 24 61337 0.1409 0.3039 0.00715 2026 10 25 61338 0.1395 0.3038 0.00604 2026 10 26 61339 0.1381 0.3037 0.00504 2026 10 27 61340 0.1367 0.3037 0.00425 2026 10 28 61341 0.1353 0.3036 0.00372 2026 10 29 61342 0.1338 0.3036 0.00343 2026 10 30 61343 0.1324 0.3036 0.00326 2026 10 31 61344 0.1309 0.3037 0.00308 2026 11 1 61345 0.1295 0.3037 0.00276 2026 11 2 61346 0.1281 0.3038 0.00222 2026 11 3 61347 0.1266 0.3039 0.00146 2026 11 4 61348 0.1252 0.3040 0.00052 2026 11 5 61349 0.1237 0.3041 -0.00051 2026 11 6 61350 0.1222 0.3043 -0.00154 2026 11 7 61351 0.1208 0.3045 -0.00245 2026 11 8 61352 0.1193 0.3047 -0.00320 2026 11 9 61353 0.1179 0.3049 -0.00372 2026 11 10 61354 0.1164 0.3051 -0.00403 2026 11 11 61355 0.1150 0.3054 -0.00416 2026 11 12 61356 0.1135 0.3057 -0.00415 2026 11 13 61357 0.1121 0.3060 -0.00409 2026 11 14 61358 0.1106 0.3063 -0.00405 2026 11 15 61359 0.1092 0.3066 -0.00409 2026 11 16 61360 0.1077 0.3070 -0.00428 2026 11 17 61361 0.1063 0.3074 -0.00466 2026 11 18 61362 0.1049 0.3078 -0.00523 2026 11 19 61363 0.1035 0.3083 -0.00599 2026 11 20 61364 0.1020 0.3087 -0.00690 2026 11 21 61365 0.1006 0.3092 -0.00785 2026 11 22 61366 0.0992 0.3097 -0.00876 2026 11 23 61367 0.0978 0.3102 -0.00949 2026 11 24 61368 0.0964 0.3108 -0.00998 2026 11 25 61369 0.0950 0.3113 -0.01021 2026 11 26 61370 0.0936 0.3119 -0.01027 2026 11 27 61371 0.0922 0.3125 -0.01028 2026 11 28 61372 0.0909 0.3132 -0.01039 2026 11 29 61373 0.0895 0.3138 -0.01071 2026 11 30 61374 0.0882 0.3145 -0.01125 2026 12 1 61375 0.0868 0.3152 -0.01198 2026 12 2 61376 0.0855 0.3159 -0.01279 2026 12 3 61377 0.0842 0.3166 -0.01359 2026 12 4 61378 0.0829 0.3174 -0.01428 2026 12 5 61379 0.0816 0.3182 -0.01479 2026 12 6 61380 0.0803 0.3189 -0.01508 2026 12 7 61381 0.0790 0.3198 -0.01515 2026 12 8 61382 0.0777 0.3206 -0.01503 2026 12 9 61383 0.0765 0.3215 -0.01476 2026 12 10 61384 0.0752 0.3223 -0.01442 2026 12 11 61385 0.0740 0.3232 -0.01407 2026 12 12 61386 0.0728 0.3241 -0.01379 2026 12 13 61387 0.0716 0.3251 -0.01364 2026 12 14 61388 0.0704 0.3260 -0.01366 2026 12 15 61389 0.0693 0.3270 -0.01385 2026 12 16 61390 0.0681 0.3280 -0.01423 2026 12 17 61391 0.0670 0.3290 -0.01474 2026 12 18 61392 0.0659 0.3300 -0.01533 2026 12 19 61393 0.0648 0.3311 -0.01590 2026 12 20 61394 0.0637 0.3321 -0.01637 2026 12 21 61395 0.0626 0.3332 -0.01663 2026 12 22 61396 0.0616 0.3343 -0.01666 2026 12 23 61397 0.0605 0.3354 -0.01648 2026 12 24 61398 0.0595 0.3366 -0.01622 2026 12 25 61399 0.0585 0.3377 -0.01601 2026 12 26 61400 0.0576 0.3389 -0.01599 2026 12 27 61401 0.0566 0.3400 -0.01623 2026 12 28 61402 0.0557 0.3412 -0.01669 2026 12 29 61403 0.0548 0.3425 -0.01729 2026 12 30 61404 0.0539 0.3437 -0.01789 2026 12 31 61405 0.0530 0.3449 -0.01838 2027 1 1 61406 0.0521 0.3462 -0.01868 2027 1 2 61407 0.0513 0.3475 -0.01876 2027 1 3 61408 0.0505 0.3487 -0.01860 2027 1 4 61409 0.0497 0.3500 -0.01824 2027 1 5 61410 0.0490 0.3514 -0.01773 2027 1 6 61411 0.0482 0.3527 -0.01712 2027 1 7 61412 0.0475 0.3540 -0.01649 2027 1 8 61413 0.0468 0.3554 -0.01591 2027 1 9 61414 0.0461 0.3567 -0.01547 2027 1 10 61415 0.0455 0.3581 -0.01520 2027 1 11 61416 0.0449 0.3595 -0.01515 2027 1 12 61417 0.0443 0.3609 -0.01530 2027 1 13 61418 0.0437 0.3623 -0.01564 2027 1 14 61419 0.0431 0.3637 -0.01609 2027 1 15 61420 0.0426 0.3652 -0.01659 2027 1 16 61421 0.0421 0.3666 -0.01703 2027 1 17 61422 0.0416 0.3680 -0.01733 2027 1 18 61423 0.0412 0.3695 -0.01744 2027 1 19 61424 0.0408 0.3710 -0.01736 2027 1 20 61425 0.0404 0.3725 -0.01718 2027 1 21 61426 0.0400 0.3739 -0.01702 2027 1 22 61427 0.0397 0.3754 -0.01703 2027 1 23 61428 0.0393 0.3769 -0.01730 2027 1 24 61429 0.0391 0.3784 -0.01784 2027 1 25 61430 0.0388 0.3799 -0.01859 2027 1 26 61431 0.0386 0.3815 -0.01939 2027 1 27 61432 0.0383 0.3830 -0.02012 2027 1 28 61433 0.0382 0.3845 -0.02066 2027 1 29 61434 0.0380 0.3860 -0.02094 2027 1 30 61435 0.0379 0.3876 -0.02098 2027 1 31 61436 0.0378 0.3891 -0.02080 2027 2 1 61437 0.0377 0.3907 -0.02046 2027 2 2 61438 0.0377 0.3922 -0.02003 2027 2 3 61439 0.0376 0.3938 -0.01957 2027 2 4 61440 0.0377 0.3953 -0.01916 2027 2 5 61441 0.0377 0.3969 -0.01886 2027 2 6 61442 0.0378 0.3984 -0.01876 2027 2 7 61443 0.0379 0.4000 -0.01891 2027 2 8 61444 0.0380 0.4016 -0.01933 2027 2 9 61445 0.0381 0.4031 -0.01991 2027 2 10 61446 0.0383 0.4047 -0.02056 2027 2 11 61447 0.0385 0.4062 -0.02124 2027 2 12 61448 0.0388 0.4078 -0.02189 2027 2 13 61449 0.0390 0.4094 -0.02243 2027 2 14 61450 0.0393 0.4109 -0.02286 2027 2 15 61451 0.0397 0.4125 -0.02307 2027 2 16 61452 0.0400 0.4140 -0.02320 2027 2 17 61453 0.0404 0.4156 -0.02331 2027 2 18 61454 0.0408 0.4171 -0.02358 2027 2 19 61455 0.0413 0.4186 -0.02412 2027 2 20 61456 0.0417 0.4202 -0.02495 2027 2 21 61457 0.0422 0.4217 -0.02604 2027 2 22 61458 0.0427 0.4232 -0.02722 2027 2 23 61459 0.0433 0.4247 -0.02839 2027 2 24 61460 0.0439 0.4263 -0.02940 2027 2 25 61461 0.0445 0.4278 -0.03019 2027 2 26 61462 0.0451 0.4293 -0.03072 2027 2 27 61463 0.0458 0.4308 -0.03098 2027 2 28 61464 0.0465 0.4322 -0.03104 2027 3 1 61465 0.0472 0.4337 -0.03090 2027 3 2 61466 0.0479 0.4352 -0.03074 2027 3 3 61467 0.0487 0.4366 -0.03064 2027 3 4 61468 0.0495 0.4381 -0.03070 2027 3 5 61469 0.0503 0.4395 -0.03096 2027 3 6 61470 0.0512 0.4409 -0.03133 2027 3 7 61471 0.0521 0.4424 -0.03189 2027 3 8 61472 0.0530 0.4438 -0.03272 2027 3 9 61473 0.0539 0.4452 -0.03364 2027 3 10 61474 0.0549 0.4465 -0.03457 2027 3 11 61475 0.0559 0.4479 -0.03542 2027 3 12 61476 0.0569 0.4493 -0.03617 2027 3 13 61477 0.0579 0.4506 -0.03667 2027 3 14 61478 0.0590 0.4519 -0.03696 2027 3 15 61479 0.0601 0.4532 -0.03712 2027 3 16 61480 0.0612 0.4545 -0.03720 2027 3 17 61481 0.0623 0.4558 -0.03731 2027 3 18 61482 0.0635 0.4571 -0.03767 2027 3 19 61483 0.0647 0.4584 -0.03837 2027 3 20 61484 0.0659 0.4596 -0.03931 2027 3 21 61485 0.0671 0.4608 -0.04048 2027 3 22 61486 0.0684 0.4620 -0.04168 2027 3 23 61487 0.0697 0.4632 -0.04278 2027 3 24 61488 0.0710 0.4644 -0.04373 2027 3 25 61489 0.0723 0.4655 -0.04447 2027 3 26 61490 0.0737 0.4667 -0.04488 2027 3 27 61491 0.0750 0.4678 -0.04516 2027 3 28 61492 0.0764 0.4689 -0.04513 2027 3 29 61493 0.0778 0.4699 -0.04492 2027 3 30 61494 0.0793 0.4710 -0.04467 2027 3 31 61495 0.0807 0.4720 -0.04445 2027 4 1 61496 0.0822 0.4731 -0.04430 2027 4 2 61497 0.0837 0.4740 -0.04427 2027 4 3 61498 0.0852 0.4750 -0.04439 2027 4 4 61499 0.0867 0.4760 -0.04463 2027 4 5 61500 0.0883 0.4769 -0.04499 2027 4 6 61501 0.0899 0.4778 -0.04546 2027 4 7 61502 0.0915 0.4787 -0.04591 2027 4 8 61503 0.0931 0.4796 -0.04628 2027 4 9 61504 0.0947 0.4804 -0.04645 2027 4 10 61505 0.0963 0.4812 -0.04644 2027 4 11 61506 0.0980 0.4820 -0.04626 2027 4 12 61507 0.0996 0.4828 -0.04592 2027 4 13 61508 0.1013 0.4835 -0.04560 2027 4 14 61509 0.1030 0.4843 -0.04550 2027 4 15 61510 0.1047 0.4850 -0.04570 2027 4 16 61511 0.1065 0.4856 -0.04616 2027 4 17 61512 0.1082 0.4863 -0.04691 2027 4 18 61513 0.1100 0.4869 -0.04783 2027 4 19 61514 0.1117 0.4875 -0.04863 2027 4 20 61515 0.1135 0.4881 -0.04933 2027 4 21 61516 0.1153 0.4886 -0.04986 2027 4 22 61517 0.1171 0.4892 -0.05014 2027 4 23 61518 0.1189 0.4897 -0.05028 2027 4 24 61519 0.1208 0.4901 -0.05015 2027 4 25 61520 0.1226 0.4906 -0.04986 2027 4 26 61521 0.1245 0.4910 -0.04955 2027 4 27 61522 0.1263 0.4914 -0.04929 2027 4 28 61523 0.1282 0.4917 -0.04920 2027 4 29 61524 0.1300 0.4921 -0.04929 2027 4 30 61525 0.1319 0.4924 -0.04952 2027 5 1 61526 0.1338 0.4927 -0.04995 2027 5 2 61527 0.1357 0.4929 -0.05049 2027 5 3 61528 0.1376 0.4931 -0.05115 2027 5 4 61529 0.1395 0.4933 -0.05182 2027 5 5 61530 0.1414 0.4935 -0.05241 2027 5 6 61531 0.1433 0.4936 -0.05285 2027 5 7 61532 0.1452 0.4937 -0.05314 2027 5 8 61533 0.1472 0.4938 -0.05308 2027 5 9 61534 0.1491 0.4939 -0.05283 2027 5 10 61535 0.1510 0.4939 -0.05255 2027 5 11 61536 0.1529 0.4939 -0.05236 2027 5 12 61537 0.1549 0.4939 -0.05231 2027 5 13 61538 0.1568 0.4938 -0.05247 2027 5 14 61539 0.1587 0.4937 -0.05289 2027 5 15 61540 0.1607 0.4936 -0.05342 2027 5 16 61541 0.1626 0.4935 -0.05398 2027 5 17 61542 0.1645 0.4933 -0.05443 2027 5 18 61543 0.1664 0.4931 -0.05469 2027 5 19 61544 0.1684 0.4928 -0.05471 2027 5 20 61545 0.1703 0.4926 -0.05447 2027 5 21 61546 0.1722 0.4923 -0.05402 2027 5 22 61547 0.1741 0.4920 -0.05341 2027 5 23 61548 0.1760 0.4916 -0.05271 2027 5 24 61549 0.1779 0.4913 -0.05191 2027 5 25 61550 0.1798 0.4908 -0.05115 2027 5 26 61551 0.1817 0.4904 -0.05046 2027 5 27 61552 0.1836 0.4900 -0.04994 2027 5 28 61553 0.1855 0.4895 -0.04961 2027 5 29 61554 0.1873 0.4889 -0.04949 2027 5 30 61555 0.1892 0.4884 -0.04953 2027 5 31 61556 0.1911 0.4878 -0.04962 2027 6 1 61557 0.1929 0.4872 -0.04974 2027 6 2 61558 0.1947 0.4866 -0.04978 2027 6 3 61559 0.1966 0.4859 -0.04961 2027 6 4 61560 0.1984 0.4852 -0.04925 2027 6 5 61561 0.2002 0.4845 -0.04863 2027 6 6 61562 0.2020 0.4838 -0.04791 2027 6 7 61563 0.2038 0.4830 -0.04724 2027 6 8 61564 0.2055 0.4822 -0.04675 2027 6 9 61565 0.2073 0.4814 -0.04647 2027 6 10 61566 0.2090 0.4805 -0.04643 2027 6 11 61567 0.2107 0.4796 -0.04655 2027 6 12 61568 0.2124 0.4787 -0.04668 2027 6 13 61569 0.2141 0.4778 -0.04674 2027 6 14 61570 0.2158 0.4769 -0.04662 2027 6 15 61571 0.2175 0.4759 -0.04630 2027 6 16 61572 0.2191 0.4749 -0.04574 2027 6 17 61573 0.2207 0.4738 -0.04506 2027 6 18 61574 0.2224 0.4728 -0.04431 2027 6 19 61575 0.2239 0.4717 -0.04349 2027 6 20 61576 0.2255 0.4706 -0.04276 2027 6 21 61577 0.2271 0.4694 -0.04210 2027 6 22 61578 0.2286 0.4683 -0.04155 2027 6 23 61579 0.2301 0.4671 -0.04118 2027 6 24 61580 0.2316 0.4659 -0.04100 2027 6 25 61581 0.2331 0.4647 -0.04098 2027 6 26 61582 0.2345 0.4634 -0.04103 2027 6 27 61583 0.2360 0.4621 -0.04114 2027 6 28 61584 0.2374 0.4609 -0.04127 2027 6 29 61585 0.2388 0.4595 -0.04117 2027 6 30 61586 0.2401 0.4582 -0.04093 2027 7 1 61587 0.2415 0.4568 -0.04041 2027 7 2 61588 0.2428 0.4554 -0.03969 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) 61204 -115.15 0.95 -12.02 0.29 61205 -115.49 0.94 -12.15 0.27 61206 -115.42 0.94 -12.36 0.27 61207 -115.09 0.89 -12.39 0.20 61208 -114.81 0.87 -12.29 0.20 61209 -114.67 0.87 -12.26 0.20 61210 -114.71 0.87 -12.26 0.20 61211 -115.04 0.86 -12.12 0.20 61212 -115.67 0.98 -11.83 0.24 61213 -116.28 0.98 -11.63 0.24 61214 -116.53 1.04 -11.67 0.27 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 61162 -110.8 -11.8 61163 -110.8 -12.1 61164 -110.9 -12.2 61165 -110.9 -12.3 61166 -110.8 -12.3 61167 -110.6 -12.4 61168 -110.4 -12.5 61169 -110.2 -12.5 61170 -110.0 -12.3 61171 -110.2 -12.2 61172 -110.6 -12.2 61173 -111.0 -12.3 61174 -111.3 -12.2 61175 -111.7 -11.8 61176 -112.4 -11.6 61177 -113.0 -11.8 61178 -113.2 -12.2 61179 -112.9 -12.5 61180 -112.4 -12.6 61181 -112.0 -12.6 61182 -111.8 -12.6 61183 -112.0 -12.4 61184 -112.2 -12.1 61185 -112.4 -11.9 61186 -112.4 -11.9 61187 -112.3 -11.9 61188 -112.3 -11.9 61189 -112.4 -12.0 61190 -112.6 -12.2 61191 -112.8 -12.6 61192 -113.0 -12.8 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 61204 0.390 0.379 -0.266 0.291 61205 0.383 0.373 -0.263 0.273 61206 0.376 0.373 -0.259 0.273 61207 0.372 0.352 -0.256 0.200 61208 0.369 0.346 -0.252 0.198 61209 0.368 0.346 -0.249 0.198 61210 0.369 0.346 -0.246 0.198 61211 0.371 0.342 -0.244 0.197 61212 0.375 0.388 -0.243 0.238 61213 0.380 0.388 -0.242 0.238 61214 0.385 0.415 -0.241 0.267 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 61162 0.46 -0.06 61163 0.48 -0.05 61164 0.51 -0.04 61165 0.53 -0.04 61166 0.54 -0.04 61167 0.55 -0.04 61168 0.55 -0.05 61169 0.53 -0.07 61170 0.50 -0.11 61171 0.48 -0.14 61172 0.45 -0.18 61173 0.43 -0.20 61174 0.42 -0.22 61175 0.42 -0.23 61176 0.41 -0.20 61177 0.40 -0.15 61178 0.40 -0.10 61179 0.39 -0.07 61180 0.40 -0.08 61181 0.41 -0.12 61182 0.42 -0.16 61183 0.46 -0.18 61184 0.50 -0.19 61185 0.53 -0.20 61186 0.56 -0.19 61187 0.56 -0.18 61188 0.53 -0.16 61189 0.48 -0.14 61190 0.44 -0.13 61191 0.41 -0.13 61192 0.39 -0.14