********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 5 November 2026 Vol. XXXIX No. 045 ______________________________________________________________________ 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 = -0.1 seconds beginning 29 October 2026 at 0000 UTC Beginning 1 January 2017: TAI-UTC = 37.000 000 seconds *********************************************************************** * ANNOUNCEMENTS: * * * * ------------------------------------------------------------------- * * Starting with the weekly Bulletin A products published on 15 * * October 2026, the daily and weekly products from the IERS Rapid * * Service/Prediction Centre will be computed using a new algorithm * * along with improved pre-processing of Atmospheric Angular Momentum * * inputs. The new algorithm is a Kalman smoother and weighted cubic * * spline. Going forward, users should expect to see improvements in * * the 0-7 day predictions of UT1-UTC from the current day of * * computation, with polar motion and celestial pole offset values * * remaining mostly unchanged. After implementation, slight changes * * may result if comparing to previous daily and weekly published * * values up to one year in the past of the date of this change. It * * is expected that these values are less than 0.05 mas in polar * * motion and 20 us in UT1-UTC. * * ------------------------------------------------------------------- * * * * 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 10 30 61343 0.14139 .00004 0.31798 .00004 -0.053243 0.000010 26 10 31 61344 0.13983 .00004 0.31794 .00004 -0.053913 0.000008 26 11 1 61345 0.13802 .00004 0.31793 .00004 -0.054709 0.000008 26 11 2 61346 0.13630 .00004 0.31773 .00004 -0.055669 0.000013 26 11 3 61347 0.13501 .00004 0.31769 .00004 -0.056823 0.000009 26 11 4 61348 0.13395 .00004 0.31805 .00004 -0.058148 0.000009 26 11 5 61349 0.13290 .00004 0.31858 .00004 -0.059553 0.000012 IERS Final Values MJD x y UT1-UTC " " s 26 9 2 61285 0.2099 0.3392 0.00176 26 9 3 61286 0.2087 0.3385 0.00126 26 9 4 61287 0.2071 0.3380 0.00103 26 9 5 61288 0.2052 0.3371 0.00098 26 9 6 61289 0.2036 0.3362 0.00094 26 9 7 61290 0.2024 0.3352 0.00071 26 9 8 61291 0.2019 0.3344 0.00026 26 9 9 61292 0.2012 0.3342 -0.00046 26 9 10 61293 0.2002 0.3339 -0.00145 26 9 11 61294 0.1986 0.3335 -0.00261 26 9 12 61295 0.1964 0.3326 -0.00383 26 9 13 61296 0.1945 0.3317 -0.00503 26 9 14 61297 0.1930 0.3306 -0.00619 26 9 15 61298 0.1916 0.3295 -0.00710 26 9 16 61299 0.1908 0.3292 -0.00787 26 9 17 61300 0.1900 0.3291 -0.00847 26 9 18 61301 0.1891 0.3291 -0.00894 26 9 19 61302 0.1877 0.3293 -0.00943 26 9 20 61303 0.1861 0.3291 -0.00996 26 9 21 61304 0.1850 0.3285 -0.01058 26 9 22 61305 0.1838 0.3282 -0.01137 26 9 23 61306 0.1824 0.3277 -0.01234 26 9 24 61307 0.1815 0.3273 -0.01350 26 9 25 61308 0.1808 0.3270 -0.01482 26 9 26 61309 0.1800 0.3266 -0.01629 26 9 27 61310 0.1791 0.3262 -0.01783 26 9 28 61311 0.1784 0.3257 -0.01931 26 9 29 61312 0.1775 0.3260 -0.02061 26 9 30 61313 0.1761 0.3258 -0.02168 26 10 1 61314 0.1746 0.3253 -0.02250 _______________________________________________________________________ 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 = 0.1615 - 0.0105 cos A - 0.1068 sin A - 0.0166 cos C + 0.0432 sin C y = 0.3684 - 0.0916 cos A + 0.0075 sin A + 0.0432 cos C + 0.0166 sin C UT1-UTC = -0.1139 - 0.00044 (MJD - 61356) - (UT2-UT1) where A = 2*pi*(MJD-61349)/365.25 and C = 2*pi*(MJD-61349)/435. TAI-UTC(MJD 61350) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-61349)**0.80 S t = 0.00025 (MJD-61349)**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 11 6 61350 0.1318 0.3191 -0.06092 2026 11 7 61351 0.1307 0.3196 -0.06215 2026 11 8 61352 0.1295 0.3200 -0.06320 2026 11 9 61353 0.1283 0.3204 -0.06411 2026 11 10 61354 0.1271 0.3206 -0.06490 2026 11 11 61355 0.1259 0.3209 -0.06557 2026 11 12 61356 0.1247 0.3213 -0.06612 2026 11 13 61357 0.1235 0.3216 -0.06661 2026 11 14 61358 0.1223 0.3220 -0.06706 2026 11 15 61359 0.1211 0.3225 -0.06751 2026 11 16 61360 0.1200 0.3230 -0.06809 2026 11 17 61361 0.1189 0.3235 -0.06886 2026 11 18 61362 0.1177 0.3240 -0.06986 2026 11 19 61363 0.1167 0.3245 -0.07107 2026 11 20 61364 0.1156 0.3251 -0.07245 2026 11 21 61365 0.1145 0.3256 -0.07392 2026 11 22 61366 0.1134 0.3262 -0.07536 2026 11 23 61367 0.1123 0.3267 -0.07667 2026 11 24 61368 0.1113 0.3273 -0.07777 2026 11 25 61369 0.1102 0.3279 -0.07863 2026 11 26 61370 0.1091 0.3286 -0.07934 2026 11 27 61371 0.1081 0.3292 -0.08000 2026 11 28 61372 0.1071 0.3299 -0.08077 2026 11 29 61373 0.1061 0.3305 -0.08174 2026 11 30 61374 0.1051 0.3312 -0.08294 2026 12 1 61375 0.1041 0.3319 -0.08433 2026 12 2 61376 0.1031 0.3326 -0.08582 2026 12 3 61377 0.1021 0.3334 -0.08729 2026 12 4 61378 0.1011 0.3341 -0.08866 2026 12 5 61379 0.1002 0.3349 -0.08987 2026 12 6 61380 0.0992 0.3356 -0.09087 2026 12 7 61381 0.0983 0.3364 -0.09167 2026 12 8 61382 0.0974 0.3372 -0.09231 2026 12 9 61383 0.0965 0.3380 -0.09282 2026 12 10 61384 0.0956 0.3389 -0.09327 2026 12 11 61385 0.0947 0.3397 -0.09374 2026 12 12 61386 0.0938 0.3406 -0.09428 2026 12 13 61387 0.0930 0.3414 -0.09495 2026 12 14 61388 0.0921 0.3423 -0.09579 2026 12 15 61389 0.0913 0.3432 -0.09681 2026 12 16 61390 0.0905 0.3441 -0.09801 2026 12 17 61391 0.0897 0.3451 -0.09934 2026 12 18 61392 0.0889 0.3460 -0.10074 2026 12 19 61393 0.0881 0.3469 -0.10214 2026 12 20 61394 0.0874 0.3479 -0.10343 2026 12 21 61395 0.0866 0.3489 -0.10452 2026 12 22 61396 0.0859 0.3498 -0.10538 2026 12 23 61397 0.0852 0.3508 -0.10606 2026 12 24 61398 0.0845 0.3518 -0.10665 2026 12 25 61399 0.0838 0.3528 -0.10731 2026 12 26 61400 0.0832 0.3539 -0.10818 2026 12 27 61401 0.0825 0.3549 -0.10930 2026 12 28 61402 0.0819 0.3560 -0.11067 2026 12 29 61403 0.0813 0.3570 -0.11217 2026 12 30 61404 0.0807 0.3581 -0.11367 2026 12 31 61405 0.0801 0.3591 -0.11507 2027 1 1 61406 0.0795 0.3602 -0.11629 2027 1 2 61407 0.0790 0.3613 -0.11728 2027 1 3 61408 0.0785 0.3624 -0.11805 2027 1 4 61409 0.0780 0.3635 -0.11863 2027 1 5 61410 0.0775 0.3647 -0.11905 2027 1 6 61411 0.0770 0.3658 -0.11939 2027 1 7 61412 0.0766 0.3669 -0.11971 2027 1 8 61413 0.0761 0.3681 -0.12009 2027 1 9 61414 0.0757 0.3692 -0.12059 2027 1 10 61415 0.0753 0.3704 -0.12126 2027 1 11 61416 0.0750 0.3715 -0.12213 2027 1 12 61417 0.0746 0.3727 -0.12318 2027 1 13 61418 0.0743 0.3739 -0.12438 2027 1 14 61419 0.0740 0.3751 -0.12567 2027 1 15 61420 0.0737 0.3763 -0.12697 2027 1 16 61421 0.0734 0.3775 -0.12820 2027 1 17 61422 0.0732 0.3787 -0.12928 2027 1 18 61423 0.0730 0.3799 -0.13016 2027 1 19 61424 0.0727 0.3811 -0.13085 2027 1 20 61425 0.0726 0.3823 -0.13141 2027 1 21 61426 0.0724 0.3835 -0.13199 2027 1 22 61427 0.0723 0.3847 -0.13272 2027 1 23 61428 0.0721 0.3859 -0.13372 2027 1 24 61429 0.0720 0.3872 -0.13499 2027 1 25 61430 0.0720 0.3884 -0.13648 2027 1 26 61431 0.0719 0.3896 -0.13805 2027 1 27 61432 0.0719 0.3909 -0.13956 2027 1 28 61433 0.0719 0.3921 -0.14090 2027 1 29 61434 0.0719 0.3933 -0.14201 2027 1 30 61435 0.0719 0.3946 -0.14288 2027 1 31 61436 0.0720 0.3958 -0.14355 2027 2 1 61437 0.0720 0.3970 -0.14406 2027 2 2 61438 0.0721 0.3983 -0.14448 2027 2 3 61439 0.0723 0.3995 -0.14487 2027 2 4 61440 0.0724 0.4008 -0.14532 2027 2 5 61441 0.0726 0.4020 -0.14588 2027 2 6 61442 0.0728 0.4032 -0.14661 2027 2 7 61443 0.0730 0.4045 -0.14754 2027 2 8 61444 0.0732 0.4057 -0.14866 2027 2 9 61445 0.0735 0.4069 -0.14994 2027 2 10 61446 0.0738 0.4081 -0.15131 2027 2 11 61447 0.0741 0.4094 -0.15269 2027 2 12 61448 0.0744 0.4106 -0.15401 2027 2 13 61449 0.0747 0.4118 -0.15517 2027 2 14 61450 0.0751 0.4130 -0.15614 2027 2 15 61451 0.0755 0.4142 -0.15691 2027 2 16 61452 0.0759 0.4154 -0.15753 2027 2 17 61453 0.0764 0.4166 -0.15813 2027 2 18 61454 0.0768 0.4178 -0.15883 2027 2 19 61455 0.0773 0.4190 -0.15976 2027 2 20 61456 0.0778 0.4202 -0.16098 2027 2 21 61457 0.0783 0.4214 -0.16254 2027 2 22 61458 0.0789 0.4225 -0.16428 2027 2 23 61459 0.0795 0.4237 -0.16605 2027 2 24 61460 0.0801 0.4249 -0.16769 2027 2 25 61461 0.0807 0.4260 -0.16912 2027 2 26 61462 0.0813 0.4271 -0.17030 2027 2 27 61463 0.0820 0.4283 -0.17124 2027 2 28 61464 0.0827 0.4294 -0.17200 2027 3 1 61465 0.0834 0.4305 -0.17263 2027 3 2 61466 0.0841 0.4316 -0.17320 2027 3 3 61467 0.0849 0.4327 -0.17381 2027 3 4 61468 0.0856 0.4338 -0.17450 2027 3 5 61469 0.0864 0.4349 -0.17536 2027 3 6 61470 0.0873 0.4359 -0.17640 2027 3 7 61471 0.0881 0.4370 -0.17765 2027 3 8 61472 0.0889 0.4380 -0.17908 2027 3 9 61473 0.0898 0.4391 -0.18064 2027 3 10 61474 0.0907 0.4401 -0.18224 2027 3 11 61475 0.0916 0.4411 -0.18378 2027 3 12 61476 0.0926 0.4421 -0.18519 2027 3 13 61477 0.0935 0.4431 -0.18640 2027 3 14 61478 0.0945 0.4440 -0.18741 2027 3 15 61479 0.0955 0.4450 -0.18825 2027 3 16 61480 0.0965 0.4459 -0.18902 2027 3 17 61481 0.0976 0.4468 -0.18985 2027 3 18 61482 0.0986 0.4478 -0.19086 2027 3 19 61483 0.0997 0.4486 -0.19214 2027 3 20 61484 0.1008 0.4495 -0.19370 2027 3 21 61485 0.1019 0.4504 -0.19548 2027 3 22 61486 0.1030 0.4513 -0.19736 2027 3 23 61487 0.1042 0.4521 -0.19919 2027 3 24 61488 0.1053 0.4529 -0.20085 2027 3 25 61489 0.1065 0.4537 -0.20227 2027 3 26 61490 0.1077 0.4545 -0.20342 2027 3 27 61491 0.1089 0.4553 -0.20435 2027 3 28 61492 0.1101 0.4560 -0.20511 2027 3 29 61493 0.1114 0.4568 -0.20578 2027 3 30 61494 0.1126 0.4575 -0.20645 2027 3 31 61495 0.1139 0.4582 -0.20717 2027 4 1 61496 0.1152 0.4589 -0.20801 2027 4 2 61497 0.1165 0.4595 -0.20902 2027 4 3 61498 0.1178 0.4602 -0.21023 2027 4 4 61499 0.1192 0.4608 -0.21161 2027 4 5 61500 0.1205 0.4614 -0.21314 2027 4 6 61501 0.1219 0.4620 -0.21474 2027 4 7 61502 0.1233 0.4626 -0.21631 2027 4 8 61503 0.1247 0.4631 -0.21776 2027 4 9 61504 0.1261 0.4636 -0.21901 2027 4 10 61505 0.1275 0.4641 -0.22003 2027 4 11 61506 0.1289 0.4646 -0.22086 2027 4 12 61507 0.1303 0.4651 -0.22157 2027 4 13 61508 0.1318 0.4656 -0.22228 2027 4 14 61509 0.1333 0.4660 -0.22313 2027 4 15 61510 0.1347 0.4664 -0.22419 2027 4 16 61511 0.1362 0.4668 -0.22549 2027 4 17 61512 0.1377 0.4671 -0.22700 2027 4 18 61513 0.1392 0.4675 -0.22864 2027 4 19 61514 0.1407 0.4678 -0.23027 2027 4 20 61515 0.1422 0.4681 -0.23178 2027 4 21 61516 0.1437 0.4684 -0.23308 2027 4 22 61517 0.1453 0.4686 -0.23411 2027 4 23 61518 0.1468 0.4689 -0.23490 2027 4 24 61519 0.1484 0.4691 -0.23550 2027 4 25 61520 0.1499 0.4693 -0.23598 2027 4 26 61521 0.1515 0.4694 -0.23642 2027 4 27 61522 0.1531 0.4696 -0.23689 2027 4 28 61523 0.1546 0.4697 -0.23747 2027 4 29 61524 0.1562 0.4698 -0.23820 2027 4 30 61525 0.1578 0.4698 -0.23912 2027 5 1 61526 0.1594 0.4699 -0.24024 2027 5 2 61527 0.1610 0.4699 -0.24153 2027 5 3 61528 0.1626 0.4699 -0.24295 2027 5 4 61529 0.1641 0.4699 -0.24443 2027 5 5 61530 0.1657 0.4699 -0.24588 2027 5 6 61531 0.1673 0.4698 -0.24723 2027 5 7 61532 0.1689 0.4697 -0.24842 2027 5 8 61533 0.1706 0.4696 -0.24948 2027 5 9 61534 0.1722 0.4694 -0.25048 2027 5 10 61535 0.1738 0.4693 -0.25154 2027 5 11 61536 0.1754 0.4691 -0.25279 2027 5 12 61537 0.1770 0.4689 -0.25428 2027 5 13 61538 0.1786 0.4687 -0.25603 2027 5 14 61539 0.1802 0.4684 -0.25796 2027 5 15 61540 0.1818 0.4681 -0.25995 2027 5 16 61541 0.1834 0.4678 -0.26185 2027 5 17 61542 0.1850 0.4675 -0.26354 2027 5 18 61543 0.1866 0.4671 -0.26494 2027 5 19 61544 0.1881 0.4668 -0.26599 2027 5 20 61545 0.1897 0.4664 -0.26669 2027 5 21 61546 0.1913 0.4659 -0.26708 2027 5 22 61547 0.1929 0.4655 -0.26721 2027 5 23 61548 0.1944 0.4650 -0.26717 2027 5 24 61549 0.1960 0.4645 -0.26704 2027 5 25 61550 0.1976 0.4640 -0.26690 2027 5 26 61551 0.1991 0.4635 -0.26683 2027 5 27 61552 0.2007 0.4629 -0.26686 2027 5 28 61553 0.2022 0.4623 -0.26702 2027 5 29 61554 0.2037 0.4617 -0.26728 2027 5 30 61555 0.2052 0.4611 -0.26763 2027 5 31 61556 0.2067 0.4604 -0.26799 2027 6 1 61557 0.2082 0.4598 -0.26828 2027 6 2 61558 0.2097 0.4591 -0.26843 2027 6 3 61559 0.2112 0.4584 -0.26836 2027 6 4 61560 0.2127 0.4576 -0.26806 2027 6 5 61561 0.2141 0.4568 -0.26758 2027 6 6 61562 0.2156 0.4561 -0.26702 2027 6 7 61563 0.2170 0.4553 -0.26651 2027 6 8 61564 0.2184 0.4544 -0.26618 2027 6 9 61565 0.2199 0.4536 -0.26608 2027 6 10 61566 0.2212 0.4527 -0.26619 2027 6 11 61567 0.2226 0.4518 -0.26642 2027 6 12 61568 0.2240 0.4509 -0.26666 2027 6 13 61569 0.2254 0.4500 -0.26680 2027 6 14 61570 0.2267 0.4490 -0.26678 2027 6 15 61571 0.2280 0.4480 -0.26654 2027 6 16 61572 0.2293 0.4470 -0.26608 2027 6 17 61573 0.2306 0.4460 -0.26537 2027 6 18 61574 0.2319 0.4450 -0.26448 2027 6 19 61575 0.2332 0.4439 -0.26346 2027 6 20 61576 0.2344 0.4429 -0.26238 2027 6 21 61577 0.2356 0.4418 -0.26130 2027 6 22 61578 0.2368 0.4406 -0.26033 2027 6 23 61579 0.2380 0.4395 -0.25951 2027 6 24 61580 0.2392 0.4384 -0.25885 2027 6 25 61581 0.2403 0.4372 -0.25832 2027 6 26 61582 0.2415 0.4360 -0.25787 2027 6 27 61583 0.2426 0.4348 -0.25750 2027 6 28 61584 0.2437 0.4336 -0.25718 2027 6 29 61585 0.2447 0.4324 -0.25678 2027 6 30 61586 0.2458 0.4311 -0.25617 2027 7 1 61587 0.2468 0.4299 -0.25532 2027 7 2 61588 0.2478 0.4286 -0.25427 2027 7 3 61589 0.2488 0.4273 -0.25304 2027 7 4 61590 0.2498 0.4260 -0.25186 2027 7 5 61591 0.2507 0.4246 -0.25083 2027 7 6 61592 0.2516 0.4233 -0.25011 2027 7 7 61593 0.2525 0.4219 -0.24967 2027 7 8 61594 0.2534 0.4206 -0.24947 2027 7 9 61595 0.2543 0.4192 -0.24936 2027 7 10 61596 0.2551 0.4178 -0.24919 2027 7 11 61597 0.2559 0.4164 -0.24889 2027 7 12 61598 0.2567 0.4149 -0.24841 2027 7 13 61599 0.2574 0.4135 -0.24771 2027 7 14 61600 0.2581 0.4121 -0.24674 2027 7 15 61601 0.2588 0.4106 -0.24557 2027 7 16 61602 0.2595 0.4091 -0.24434 2027 7 17 61603 0.2602 0.4077 -0.24309 2027 7 18 61604 0.2608 0.4062 -0.24181 2027 7 19 61605 0.2614 0.4047 -0.24052 2027 7 20 61606 0.2620 0.4032 -0.23938 2027 7 21 61607 0.2625 0.4016 -0.23842 2027 7 22 61608 0.2630 0.4001 -0.23761 2027 7 23 61609 0.2635 0.3986 -0.23692 2027 7 24 61610 0.2640 0.3970 -0.23623 2027 7 25 61611 0.2644 0.3955 -0.23551 2027 7 26 61612 0.2648 0.3939 -0.23469 2027 7 27 61613 0.2652 0.3924 -0.23374 2027 7 28 61614 0.2656 0.3908 -0.23263 2027 7 29 61615 0.2659 0.3892 -0.23133 2027 7 30 61616 0.2662 0.3876 -0.22996 2027 7 31 61617 0.2665 0.3861 -0.22868 2027 8 1 61618 0.2667 0.3845 -0.22757 2027 8 2 61619 0.2669 0.3829 -0.22666 2027 8 3 61620 0.2671 0.3813 -0.22601 2027 8 4 61621 0.2673 0.3797 -0.22563 2027 8 5 61622 0.2674 0.3781 -0.22539 2027 8 6 61623 0.2675 0.3765 -0.22519 2027 8 7 61624 0.2676 0.3748 -0.22480 2027 8 8 61625 0.2676 0.3732 -0.22413 2027 8 9 61626 0.2676 0.3716 -0.22318 2027 8 10 61627 0.2676 0.3700 -0.22202 2027 8 11 61628 0.2676 0.3684 -0.22074 2027 8 12 61629 0.2675 0.3668 -0.21937 2027 8 13 61630 0.2674 0.3652 -0.21801 2027 8 14 61631 0.2672 0.3636 -0.21673 2027 8 15 61632 0.2671 0.3620 -0.21559 2027 8 16 61633 0.2669 0.3603 -0.21462 2027 8 17 61634 0.2666 0.3587 -0.21388 2027 8 18 61635 0.2664 0.3571 -0.21335 2027 8 19 61636 0.2661 0.3555 -0.21298 2027 8 20 61637 0.2658 0.3539 -0.21277 2027 8 21 61638 0.2655 0.3524 -0.21262 2027 8 22 61639 0.2651 0.3508 -0.21244 2027 8 23 61640 0.2647 0.3492 -0.21218 2027 8 24 61641 0.2643 0.3476 -0.21177 2027 8 25 61642 0.2638 0.3460 -0.21126 2027 8 26 61643 0.2633 0.3445 -0.21057 2027 8 27 61644 0.2628 0.3429 -0.20991 2027 8 28 61645 0.2623 0.3414 -0.20930 2027 8 29 61646 0.2617 0.3398 -0.20888 2027 8 30 61647 0.2611 0.3383 -0.20875 2027 8 31 61648 0.2604 0.3368 -0.20898 2027 9 1 61649 0.2598 0.3353 -0.20951 2027 9 2 61650 0.2591 0.3337 -0.21009 2027 9 3 61651 0.2584 0.3323 -0.21056 2027 9 4 61652 0.2576 0.3308 -0.21077 2027 9 5 61653 0.2569 0.3293 -0.21070 2027 9 6 61654 0.2561 0.3278 -0.21032 2027 9 7 61655 0.2552 0.3264 -0.20969 2027 9 8 61656 0.2544 0.3249 -0.20896 2027 9 9 61657 0.2535 0.3235 -0.20822 2027 9 10 61658 0.2526 0.3221 -0.20753 2027 9 11 61659 0.2517 0.3207 -0.20697 2027 9 12 61660 0.2507 0.3193 -0.20655 2027 9 13 61661 0.2497 0.3179 -0.20631 2027 9 14 61662 0.2487 0.3166 -0.20632 2027 9 15 61663 0.2476 0.3152 -0.20650 2027 9 16 61664 0.2466 0.3139 -0.20685 2027 9 17 61665 0.2455 0.3126 -0.20729 2027 9 18 61666 0.2444 0.3113 -0.20775 2027 9 19 61667 0.2432 0.3100 -0.20810 2027 9 20 61668 0.2421 0.3088 -0.20832 2027 9 21 61669 0.2409 0.3075 -0.20833 2027 9 22 61670 0.2397 0.3063 -0.20820 2027 9 23 61671 0.2384 0.3051 -0.20803 2027 9 24 61672 0.2372 0.3039 -0.20787 2027 9 25 61673 0.2359 0.3027 -0.20781 2027 9 26 61674 0.2346 0.3016 -0.20795 2027 9 27 61675 0.2332 0.3004 -0.20839 2027 9 28 61676 0.2319 0.2993 -0.20916 2027 9 29 61677 0.2305 0.2982 -0.21012 2027 9 30 61678 0.2291 0.2971 -0.21111 2027 10 1 61679 0.2277 0.2961 -0.21194 2027 10 2 61680 0.2262 0.2951 -0.21249 2027 10 3 61681 0.2248 0.2941 -0.21274 2027 10 4 61682 0.2233 0.2931 -0.21270 2027 10 5 61683 0.2218 0.2921 -0.21248 2027 10 6 61684 0.2203 0.2912 -0.21220 2027 10 7 61685 0.2188 0.2902 -0.21189 2027 10 8 61686 0.2172 0.2893 -0.21171 2027 10 9 61687 0.2156 0.2885 -0.21165 2027 10 10 61688 0.2140 0.2876 -0.21173 2027 10 11 61689 0.2124 0.2868 -0.21200 2027 10 12 61690 0.2108 0.2860 -0.21241 2027 10 13 61691 0.2092 0.2852 -0.21292 2027 10 14 61692 0.2075 0.2845 -0.21354 2027 10 15 61693 0.2058 0.2837 -0.21424 2027 10 16 61694 0.2041 0.2830 -0.21493 2027 10 17 61695 0.2024 0.2824 -0.21546 2027 10 18 61696 0.2007 0.2817 -0.21576 2027 10 19 61697 0.1990 0.2811 -0.21590 2027 10 20 61698 0.1972 0.2805 -0.21598 2027 10 21 61699 0.1955 0.2799 -0.21610 2027 10 22 61700 0.1937 0.2794 -0.21639 2027 10 23 61701 0.1919 0.2788 -0.21686 2027 10 24 61702 0.1901 0.2784 -0.21764 2027 10 25 61703 0.1883 0.2779 -0.21870 2027 10 26 61704 0.1865 0.2775 -0.21997 2027 10 27 61705 0.1847 0.2770 -0.22135 2027 10 28 61706 0.1828 0.2767 -0.22264 2027 10 29 61707 0.1810 0.2763 -0.22371 2027 10 30 61708 0.1791 0.2760 -0.22445 2027 10 31 61709 0.1773 0.2757 -0.22488 2027 11 1 61710 0.1754 0.2754 -0.22507 2027 11 2 61711 0.1735 0.2752 -0.22512 2027 11 3 61712 0.1717 0.2750 -0.22512 2027 11 4 61713 0.1698 0.2748 -0.22512 2027 11 5 61714 0.1679 0.2746 -0.22520 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) 61330 -121.24 0.13 -10.67 0.04 61331 -120.72 0.13 -10.71 0.04 61332 -120.45 0.13 -10.74 0.04 61333 -120.39 0.14 -10.67 0.04 61334 -120.51 0.14 -10.52 0.04 61335 -120.77 0.14 -10.38 0.05 61336 -121.06 0.14 -10.32 0.05 61337 -121.24 0.15 -10.28 0.05 61338 -121.23 0.15 -10.19 0.06 61339 -121.14 0.17 -10.11 0.06 61340 -121.03 0.19 -10.10 0.07 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 61285 -124.3 -11.5 61286 -124.3 -11.5 61287 -124.1 -11.5 61288 -123.8 -11.6 61289 -123.5 -11.7 61290 -123.3 -11.7 61291 -123.3 -11.7 61292 -123.5 -11.5 61293 -123.6 -11.2 61294 -123.7 -11.0 61295 -123.7 -11.0 61296 -124.0 -11.0 61297 -124.6 -11.2 61298 -125.1 -11.4 61299 -125.3 -11.4 61300 -125.2 -11.4 61301 -124.7 -11.2 61302 -124.1 -11.1 61303 -123.7 -11.1 61304 -123.5 -11.3 61305 -123.5 -11.3 61306 -123.7 -11.3 61307 -123.8 -11.2 61308 -123.9 -11.1 61309 -123.9 -11.1 61310 -123.8 -11.0 61311 -123.9 -11.0 61312 -124.0 -11.0 61313 -124.0 -11.1 61314 -123.9 -11.1 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 61330 0.437 0.052 -0.113 0.039 61331 0.427 0.053 -0.115 0.040 61332 0.414 0.053 -0.117 0.041 61333 0.401 0.054 -0.119 0.043 61334 0.385 0.054 -0.121 0.045 61335 0.369 0.055 -0.124 0.047 61336 0.351 0.056 -0.126 0.050 61337 0.332 0.058 -0.128 0.053 61338 0.311 0.062 -0.130 0.057 61339 0.291 0.067 -0.132 0.061 61340 0.270 0.075 -0.134 0.067 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 61285 0.44 -0.12 61286 0.46 -0.09 61287 0.46 -0.08 61288 0.47 -0.10 61289 0.46 -0.15 61290 0.45 -0.19 61291 0.42 -0.21 61292 0.38 -0.17 61293 0.33 -0.10 61294 0.29 -0.03 61295 0.27 -0.03 61296 0.27 -0.07 61297 0.28 -0.12 61298 0.29 -0.17 61299 0.28 -0.17 61300 0.27 -0.15 61301 0.25 -0.12 61302 0.24 -0.11 61303 0.23 -0.11 61304 0.23 -0.11 61305 0.24 -0.12 61306 0.25 -0.14 61307 0.26 -0.16 61308 0.27 -0.19 61309 0.28 -0.21 61310 0.30 -0.23 61311 0.31 -0.24 61312 0.33 -0.24 61313 0.34 -0.23 61314 0.35 -0.21