********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 29 October 2026 Vol. XXXIX No. 044 ______________________________________________________________________ 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 23 61336 0.14842 .00004 0.31756 .00004 -0.044448 0.000011 26 10 24 61337 0.14779 .00004 0.31764 .00004 -0.046172 0.000009 26 10 25 61338 0.14707 .00004 0.31799 .00004 -0.047836 0.000009 26 10 26 61339 0.14622 .00004 0.31837 .00004 -0.049390 0.000015 26 10 27 61340 0.14533 .00004 0.31852 .00004 -0.050735 0.000016 26 10 28 61341 0.14424 .00004 0.31844 .00004 -0.051795 0.000011 26 10 29 61342 0.14284 .00004 0.31828 .00004 -0.052612 0.000014 _______________________________________________________________________ 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 = 0.1631 + 0.0019 cos A - 0.1100 sin A - 0.0219 cos C + 0.0437 sin C y = 0.3695 - 0.0939 cos A - 0.0033 sin A + 0.0437 cos C + 0.0219 sin C UT1-UTC = -0.1114 - 0.00042 (MJD - 61349) - (UT2-UT1) where A = 2*pi*(MJD-61342)/365.25 and C = 2*pi*(MJD-61342)/435. TAI-UTC(MJD 61343) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-61342)**0.80 S t = 0.00025 (MJD-61342)**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 10 30 61343 0.1414 0.3181 -0.05324 2026 10 31 61344 0.1401 0.3179 -0.05383 2026 11 1 61345 0.1388 0.3179 -0.05453 2026 11 2 61346 0.1375 0.3180 -0.05542 2026 11 3 61347 0.1364 0.3181 -0.05651 2026 11 4 61348 0.1353 0.3183 -0.05773 2026 11 5 61349 0.1342 0.3185 -0.05901 2026 11 6 61350 0.1330 0.3187 -0.06029 2026 11 7 61351 0.1319 0.3189 -0.06152 2026 11 8 61352 0.1308 0.3192 -0.06263 2026 11 9 61353 0.1296 0.3194 -0.06357 2026 11 10 61354 0.1285 0.3197 -0.06434 2026 11 11 61355 0.1274 0.3199 -0.06498 2026 11 12 61356 0.1262 0.3202 -0.06552 2026 11 13 61357 0.1251 0.3205 -0.06604 2026 11 14 61358 0.1239 0.3209 -0.06661 2026 11 15 61359 0.1228 0.3213 -0.06729 2026 11 16 61360 0.1216 0.3217 -0.06811 2026 11 17 61361 0.1204 0.3222 -0.06912 2026 11 18 61362 0.1193 0.3227 -0.07033 2026 11 19 61363 0.1182 0.3232 -0.07173 2026 11 20 61364 0.1171 0.3237 -0.07326 2026 11 21 61365 0.1160 0.3242 -0.07486 2026 11 22 61366 0.1149 0.3247 -0.07640 2026 11 23 61367 0.1138 0.3252 -0.07778 2026 11 24 61368 0.1127 0.3257 -0.07893 2026 11 25 61369 0.1116 0.3263 -0.07984 2026 11 26 61370 0.1106 0.3269 -0.08059 2026 11 27 61371 0.1095 0.3275 -0.08132 2026 11 28 61372 0.1084 0.3282 -0.08218 2026 11 29 61373 0.1074 0.3288 -0.08327 2026 11 30 61374 0.1063 0.3295 -0.08460 2026 12 1 61375 0.1053 0.3302 -0.08613 2026 12 2 61376 0.1043 0.3309 -0.08775 2026 12 3 61377 0.1033 0.3316 -0.08936 2026 12 4 61378 0.1023 0.3323 -0.09085 2026 12 5 61379 0.1013 0.3331 -0.09217 2026 12 6 61380 0.1003 0.3339 -0.09326 2026 12 7 61381 0.0993 0.3346 -0.09414 2026 12 8 61382 0.0984 0.3354 -0.09482 2026 12 9 61383 0.0974 0.3362 -0.09536 2026 12 10 61384 0.0965 0.3371 -0.09582 2026 12 11 61385 0.0955 0.3379 -0.09629 2026 12 12 61386 0.0946 0.3387 -0.09683 2026 12 13 61387 0.0937 0.3396 -0.09751 2026 12 14 61388 0.0928 0.3405 -0.09836 2026 12 15 61389 0.0920 0.3414 -0.09940 2026 12 16 61390 0.0911 0.3423 -0.10062 2026 12 17 61391 0.0903 0.3432 -0.10198 2026 12 18 61392 0.0894 0.3442 -0.10343 2026 12 19 61393 0.0886 0.3451 -0.10486 2026 12 20 61394 0.0878 0.3461 -0.10618 2026 12 21 61395 0.0870 0.3471 -0.10729 2026 12 22 61396 0.0862 0.3480 -0.10818 2026 12 23 61397 0.0855 0.3490 -0.10886 2026 12 24 61398 0.0848 0.3500 -0.10946 2026 12 25 61399 0.0840 0.3511 -0.11012 2026 12 26 61400 0.0833 0.3521 -0.11097 2026 12 27 61401 0.0826 0.3532 -0.11208 2026 12 28 61402 0.0820 0.3542 -0.11342 2026 12 29 61403 0.0813 0.3553 -0.11489 2026 12 30 61404 0.0807 0.3564 -0.11638 2026 12 31 61405 0.0800 0.3574 -0.11776 2027 1 1 61406 0.0794 0.3585 -0.11896 2027 1 2 61407 0.0789 0.3596 -0.11995 2027 1 3 61408 0.0783 0.3608 -0.12072 2027 1 4 61409 0.0777 0.3619 -0.12130 2027 1 5 61410 0.0772 0.3630 -0.12174 2027 1 6 61411 0.0767 0.3642 -0.12210 2027 1 7 61412 0.0762 0.3653 -0.12245 2027 1 8 61413 0.0757 0.3665 -0.12286 2027 1 9 61414 0.0753 0.3677 -0.12339 2027 1 10 61415 0.0749 0.3688 -0.12408 2027 1 11 61416 0.0745 0.3700 -0.12494 2027 1 12 61417 0.0741 0.3712 -0.12598 2027 1 13 61418 0.0737 0.3724 -0.12715 2027 1 14 61419 0.0734 0.3736 -0.12840 2027 1 15 61420 0.0730 0.3748 -0.12965 2027 1 16 61421 0.0727 0.3760 -0.13082 2027 1 17 61422 0.0724 0.3772 -0.13183 2027 1 18 61423 0.0722 0.3785 -0.13264 2027 1 19 61424 0.0719 0.3797 -0.13326 2027 1 20 61425 0.0717 0.3809 -0.13376 2027 1 21 61426 0.0715 0.3822 -0.13429 2027 1 22 61427 0.0713 0.3834 -0.13499 2027 1 23 61428 0.0712 0.3847 -0.13596 2027 1 24 61429 0.0711 0.3859 -0.13722 2027 1 25 61430 0.0709 0.3872 -0.13871 2027 1 26 61431 0.0709 0.3884 -0.14027 2027 1 27 61432 0.0708 0.3897 -0.14178 2027 1 28 61433 0.0707 0.3909 -0.14312 2027 1 29 61434 0.0707 0.3922 -0.14423 2027 1 30 61435 0.0707 0.3935 -0.14509 2027 1 31 61436 0.0708 0.3947 -0.14573 2027 2 1 61437 0.0708 0.3960 -0.14620 2027 2 2 61438 0.0709 0.3973 -0.14656 2027 2 3 61439 0.0710 0.3985 -0.14689 2027 2 4 61440 0.0711 0.3998 -0.14726 2027 2 5 61441 0.0712 0.4011 -0.14774 2027 2 6 61442 0.0714 0.4023 -0.14838 2027 2 7 61443 0.0716 0.4036 -0.14921 2027 2 8 61444 0.0718 0.4048 -0.15022 2027 2 9 61445 0.0720 0.4061 -0.15139 2027 2 10 61446 0.0723 0.4073 -0.15265 2027 2 11 61447 0.0726 0.4086 -0.15392 2027 2 12 61448 0.0729 0.4099 -0.15511 2027 2 13 61449 0.0732 0.4111 -0.15616 2027 2 14 61450 0.0736 0.4123 -0.15710 2027 2 15 61451 0.0739 0.4136 -0.15784 2027 2 16 61452 0.0743 0.4148 -0.15845 2027 2 17 61453 0.0748 0.4160 -0.15904 2027 2 18 61454 0.0752 0.4173 -0.15975 2027 2 19 61455 0.0757 0.4185 -0.16069 2027 2 20 61456 0.0762 0.4197 -0.16194 2027 2 21 61457 0.0767 0.4209 -0.16346 2027 2 22 61458 0.0772 0.4221 -0.16517 2027 2 23 61459 0.0778 0.4233 -0.16690 2027 2 24 61460 0.0784 0.4245 -0.16851 2027 2 25 61461 0.0790 0.4256 -0.16991 2027 2 26 61462 0.0796 0.4268 -0.17105 2027 2 27 61463 0.0803 0.4280 -0.17195 2027 2 28 61464 0.0809 0.4291 -0.17266 2027 3 1 61465 0.0816 0.4303 -0.17325 2027 3 2 61466 0.0823 0.4314 -0.17378 2027 3 3 61467 0.0831 0.4325 -0.17433 2027 3 4 61468 0.0838 0.4336 -0.17498 2027 3 5 61469 0.0846 0.4347 -0.17578 2027 3 6 61470 0.0854 0.4358 -0.17678 2027 3 7 61471 0.0863 0.4369 -0.17797 2027 3 8 61472 0.0871 0.4380 -0.17935 2027 3 9 61473 0.0880 0.4390 -0.18084 2027 3 10 61474 0.0889 0.4401 -0.18239 2027 3 11 61475 0.0898 0.4411 -0.18387 2027 3 12 61476 0.0907 0.4421 -0.18522 2027 3 13 61477 0.0917 0.4432 -0.18638 2027 3 14 61478 0.0926 0.4442 -0.18732 2027 3 15 61479 0.0936 0.4451 -0.18811 2027 3 16 61480 0.0947 0.4461 -0.18882 2027 3 17 61481 0.0957 0.4471 -0.18960 2027 3 18 61482 0.0967 0.4480 -0.19055 2027 3 19 61483 0.0978 0.4489 -0.19178 2027 3 20 61484 0.0989 0.4498 -0.19328 2027 3 21 61485 0.1000 0.4507 -0.19501 2027 3 22 61486 0.1011 0.4516 -0.19684 2027 3 23 61487 0.1023 0.4525 -0.19862 2027 3 24 61488 0.1035 0.4533 -0.20023 2027 3 25 61489 0.1046 0.4541 -0.20159 2027 3 26 61490 0.1058 0.4550 -0.20269 2027 3 27 61491 0.1070 0.4558 -0.20357 2027 3 28 61492 0.1083 0.4565 -0.20428 2027 3 29 61493 0.1095 0.4573 -0.20490 2027 3 30 61494 0.1108 0.4580 -0.20550 2027 3 31 61495 0.1121 0.4588 -0.20616 2027 4 1 61496 0.1134 0.4595 -0.20695 2027 4 2 61497 0.1147 0.4602 -0.20790 2027 4 3 61498 0.1160 0.4608 -0.20903 2027 4 4 61499 0.1174 0.4615 -0.21035 2027 4 5 61500 0.1187 0.4621 -0.21180 2027 4 6 61501 0.1201 0.4627 -0.21333 2027 4 7 61502 0.1215 0.4633 -0.21482 2027 4 8 61503 0.1229 0.4639 -0.21620 2027 4 9 61504 0.1243 0.4644 -0.21738 2027 4 10 61505 0.1257 0.4650 -0.21833 2027 4 11 61506 0.1271 0.4655 -0.21908 2027 4 12 61507 0.1286 0.4660 -0.21972 2027 4 13 61508 0.1300 0.4664 -0.22038 2027 4 14 61509 0.1315 0.4669 -0.22116 2027 4 15 61510 0.1330 0.4673 -0.22217 2027 4 16 61511 0.1345 0.4677 -0.22342 2027 4 17 61512 0.1360 0.4681 -0.22489 2027 4 18 61513 0.1375 0.4685 -0.22650 2027 4 19 61514 0.1390 0.4688 -0.22811 2027 4 20 61515 0.1406 0.4691 -0.22961 2027 4 21 61516 0.1421 0.4694 -0.23090 2027 4 22 61517 0.1436 0.4697 -0.23196 2027 4 23 61518 0.1452 0.4700 -0.23279 2027 4 24 61519 0.1468 0.4702 -0.23345 2027 4 25 61520 0.1483 0.4704 -0.23401 2027 4 26 61521 0.1499 0.4706 -0.23457 2027 4 27 61522 0.1515 0.4707 -0.23520 2027 4 28 61523 0.1531 0.4709 -0.23599 2027 4 29 61524 0.1547 0.4710 -0.23698 2027 4 30 61525 0.1563 0.4711 -0.23821 2027 5 1 61526 0.1579 0.4711 -0.23971 2027 5 2 61527 0.1595 0.4712 -0.24144 2027 5 3 61528 0.1611 0.4712 -0.24336 2027 5 4 61529 0.1627 0.4712 -0.24537 2027 5 5 61530 0.1643 0.4712 -0.24735 2027 5 6 61531 0.1659 0.4711 -0.24918 2027 5 7 61532 0.1676 0.4710 -0.25076 2027 5 8 61533 0.1692 0.4709 -0.25204 2027 5 9 61534 0.1708 0.4708 -0.25307 2027 5 10 61535 0.1724 0.4707 -0.25394 2027 5 11 61536 0.1740 0.4705 -0.25479 2027 5 12 61537 0.1757 0.4703 -0.25571 2027 5 13 61538 0.1773 0.4701 -0.25673 2027 5 14 61539 0.1789 0.4698 -0.25784 2027 5 15 61540 0.1805 0.4696 -0.25896 2027 5 16 61541 0.1821 0.4693 -0.26001 2027 5 17 61542 0.1838 0.4690 -0.26087 2027 5 18 61543 0.1854 0.4686 -0.26149 2027 5 19 61544 0.1870 0.4682 -0.26183 2027 5 20 61545 0.1886 0.4679 -0.26190 2027 5 21 61546 0.1902 0.4674 -0.26172 2027 5 22 61547 0.1918 0.4670 -0.26137 2027 5 23 61548 0.1934 0.4666 -0.26094 2027 5 24 61549 0.1949 0.4661 -0.26049 2027 5 25 61550 0.1965 0.4656 -0.26011 2027 5 26 61551 0.1981 0.4650 -0.25984 2027 5 27 61552 0.1996 0.4645 -0.25971 2027 5 28 61553 0.2012 0.4639 -0.25973 2027 5 29 61554 0.2027 0.4633 -0.25989 2027 5 30 61555 0.2043 0.4627 -0.26015 2027 5 31 61556 0.2058 0.4620 -0.26045 2027 6 1 61557 0.2073 0.4614 -0.26072 2027 6 2 61558 0.2088 0.4607 -0.26086 2027 6 3 61559 0.2103 0.4600 -0.26079 2027 6 4 61560 0.2118 0.4592 -0.26047 2027 6 5 61561 0.2133 0.4585 -0.25992 2027 6 6 61562 0.2148 0.4577 -0.25926 2027 6 7 61563 0.2162 0.4569 -0.25862 2027 6 8 61564 0.2177 0.4561 -0.25814 2027 6 9 61565 0.2191 0.4552 -0.25790 2027 6 10 61566 0.2205 0.4543 -0.25789 2027 6 11 61567 0.2219 0.4534 -0.25799 2027 6 12 61568 0.2233 0.4525 -0.25808 2027 6 13 61569 0.2247 0.4516 -0.25809 2027 6 14 61570 0.2261 0.4507 -0.25798 2027 6 15 61571 0.2274 0.4497 -0.25765 2027 6 16 61572 0.2287 0.4487 -0.25702 2027 6 17 61573 0.2300 0.4477 -0.25615 2027 6 18 61574 0.2313 0.4466 -0.25510 2027 6 19 61575 0.2326 0.4456 -0.25389 2027 6 20 61576 0.2339 0.4445 -0.25268 2027 6 21 61577 0.2351 0.4434 -0.25152 2027 6 22 61578 0.2364 0.4423 -0.25052 2027 6 23 61579 0.2376 0.4412 -0.24968 2027 6 24 61580 0.2388 0.4400 -0.24903 2027 6 25 61581 0.2399 0.4389 -0.24855 2027 6 26 61582 0.2411 0.4377 -0.24820 2027 6 27 61583 0.2422 0.4365 -0.24795 2027 6 28 61584 0.2433 0.4353 -0.24776 2027 6 29 61585 0.2444 0.4340 -0.24749 2027 6 30 61586 0.2455 0.4328 -0.24700 2027 7 1 61587 0.2465 0.4315 -0.24628 2027 7 2 61588 0.2476 0.4302 -0.24540 2027 7 3 61589 0.2486 0.4289 -0.24442 2027 7 4 61590 0.2496 0.4276 -0.24337 2027 7 5 61591 0.2505 0.4263 -0.24236 2027 7 6 61592 0.2515 0.4249 -0.24161 2027 7 7 61593 0.2524 0.4236 -0.24114 2027 7 8 61594 0.2533 0.4222 -0.24086 2027 7 9 61595 0.2541 0.4208 -0.24063 2027 7 10 61596 0.2550 0.4194 -0.24026 2027 7 11 61597 0.2558 0.4180 -0.23966 2027 7 12 61598 0.2566 0.4166 -0.23879 2027 7 13 61599 0.2574 0.4151 -0.23766 2027 7 14 61600 0.2581 0.4137 -0.23632 2027 7 15 61601 0.2588 0.4122 -0.23481 2027 7 16 61602 0.2595 0.4108 -0.23326 2027 7 17 61603 0.2602 0.4093 -0.23179 2027 7 18 61604 0.2608 0.4078 -0.23040 2027 7 19 61605 0.2614 0.4063 -0.22908 2027 7 20 61606 0.2620 0.4048 -0.22785 2027 7 21 61607 0.2626 0.4032 -0.22680 2027 7 22 61608 0.2631 0.4017 -0.22587 2027 7 23 61609 0.2636 0.4002 -0.22511 2027 7 24 61610 0.2641 0.3986 -0.22438 2027 7 25 61611 0.2646 0.3971 -0.22361 2027 7 26 61612 0.2650 0.3955 -0.22276 2027 7 27 61613 0.2654 0.3939 -0.22181 2027 7 28 61614 0.2658 0.3924 -0.22074 2027 7 29 61615 0.2661 0.3908 -0.21950 2027 7 30 61616 0.2664 0.3892 -0.21819 2027 7 31 61617 0.2667 0.3876 -0.21689 2027 8 1 61618 0.2670 0.3860 -0.21575 2027 8 2 61619 0.2672 0.3844 -0.21487 2027 8 3 61620 0.2674 0.3828 -0.21436 2027 8 4 61621 0.2676 0.3812 -0.21415 2027 8 5 61622 0.2677 0.3796 -0.21412 2027 8 6 61623 0.2678 0.3780 -0.21414 2027 8 7 61624 0.2679 0.3763 -0.21406 2027 8 8 61625 0.2680 0.3747 -0.21375 2027 8 9 61626 0.2680 0.3731 -0.21320 2027 8 10 61627 0.2680 0.3715 -0.21243 2027 8 11 61628 0.2679 0.3699 -0.21153 2027 8 12 61629 0.2679 0.3682 -0.21049 2027 8 13 61630 0.2678 0.3666 -0.20949 2027 8 14 61631 0.2677 0.3650 -0.20850 2027 8 15 61632 0.2675 0.3634 -0.20760 2027 8 16 61633 0.2673 0.3618 -0.20684 2027 8 17 61634 0.2671 0.3602 -0.20630 2027 8 18 61635 0.2669 0.3586 -0.20600 2027 8 19 61636 0.2666 0.3569 -0.20578 2027 8 20 61637 0.2663 0.3553 -0.20561 2027 8 21 61638 0.2660 0.3537 -0.20542 2027 8 22 61639 0.2656 0.3521 -0.20515 2027 8 23 61640 0.2652 0.3506 -0.20473 2027 8 24 61641 0.2648 0.3490 -0.20412 2027 8 25 61642 0.2643 0.3474 -0.20338 2027 8 26 61643 0.2639 0.3458 -0.20254 2027 8 27 61644 0.2633 0.3443 -0.20167 2027 8 28 61645 0.2628 0.3427 -0.20094 2027 8 29 61646 0.2622 0.3412 -0.20039 2027 8 30 61647 0.2616 0.3396 -0.20016 2027 8 31 61648 0.2610 0.3381 -0.20031 2027 9 1 61649 0.2604 0.3366 -0.20073 2027 9 2 61650 0.2597 0.3351 -0.20129 2027 9 3 61651 0.2590 0.3335 -0.20183 2027 9 4 61652 0.2582 0.3321 -0.20222 2027 9 5 61653 0.2575 0.3306 -0.20234 2027 9 6 61654 0.2567 0.3291 -0.20221 2027 9 7 61655 0.2559 0.3276 -0.20183 2027 9 8 61656 0.2550 0.3262 -0.20133 2027 9 9 61657 0.2541 0.3248 -0.20081 2027 9 10 61658 0.2532 0.3233 -0.20029 2027 9 11 61659 0.2523 0.3219 -0.19982 2027 9 12 61660 0.2513 0.3205 -0.19943 2027 9 13 61661 0.2504 0.3192 -0.19922 2027 9 14 61662 0.2493 0.3178 -0.19924 2027 9 15 61663 0.2483 0.3164 -0.19944 2027 9 16 61664 0.2472 0.3151 -0.19976 2027 9 17 61665 0.2462 0.3138 -0.20010 2027 9 18 61666 0.2450 0.3125 -0.20037 2027 9 19 61667 0.2439 0.3112 -0.20051 2027 9 20 61668 0.2427 0.3099 -0.20046 2027 9 21 61669 0.2415 0.3087 -0.20023 2027 9 22 61670 0.2403 0.3074 -0.19989 2027 9 23 61671 0.2391 0.3062 -0.19945 2027 9 24 61672 0.2378 0.3050 -0.19910 2027 9 25 61673 0.2365 0.3038 -0.19892 2027 9 26 61674 0.2352 0.3027 -0.19897 2027 9 27 61675 0.2339 0.3015 -0.19934 2027 9 28 61676 0.2326 0.3004 -0.19997 2027 9 29 61677 0.2312 0.2993 -0.20075 2027 9 30 61678 0.2298 0.2983 -0.20160 2027 10 1 61679 0.2284 0.2972 -0.20240 2027 10 2 61680 0.2269 0.2962 -0.20305 2027 10 3 61681 0.2255 0.2951 -0.20340 2027 10 4 61682 0.2240 0.2941 -0.20348 2027 10 5 61683 0.2225 0.2932 -0.20338 2027 10 6 61684 0.2210 0.2922 -0.20324 2027 10 7 61685 0.2194 0.2913 -0.20315 2027 10 8 61686 0.2179 0.2904 -0.20318 2027 10 9 61687 0.2163 0.2895 -0.20332 2027 10 10 61688 0.2147 0.2887 -0.20367 2027 10 11 61689 0.2131 0.2878 -0.20421 2027 10 12 61690 0.2115 0.2870 -0.20494 2027 10 13 61691 0.2098 0.2862 -0.20584 2027 10 14 61692 0.2082 0.2855 -0.20679 2027 10 15 61693 0.2065 0.2848 -0.20770 2027 10 16 61694 0.2048 0.2840 -0.20845 2027 10 17 61695 0.2031 0.2834 -0.20900 2027 10 18 61696 0.2014 0.2827 -0.20933 2027 10 19 61697 0.1996 0.2821 -0.20950 2027 10 20 61698 0.1979 0.2815 -0.20955 2027 10 21 61699 0.1961 0.2809 -0.20956 2027 10 22 61700 0.1944 0.2804 -0.20966 2027 10 23 61701 0.1926 0.2798 -0.20990 2027 10 24 61702 0.1908 0.2793 -0.21044 2027 10 25 61703 0.1890 0.2789 -0.21127 2027 10 26 61704 0.1871 0.2784 -0.21234 2027 10 27 61705 0.1853 0.2780 -0.21351 2027 10 28 61706 0.1835 0.2776 -0.21454 2027 10 29 61707 0.1816 0.2773 -0.21537 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) 61327 -122.50 0.14 -10.79 0.05 61328 -122.31 0.15 -10.79 0.05 61329 -121.79 0.17 -10.69 0.06 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 61327 0.469 0.055 -0.080 0.050 61328 0.472 0.061 -0.078 0.054 61329 0.475 0.069 -0.075 0.059