********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 25 February 2021 Vol. XXXIV No. 008 ______________________________________________________________________ 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 = -0.2 seconds beginning 02 May 2019 at 0000 UTC Beginning 1 January 2017: TAI-UTC = 37.000 000 seconds *********************************************************************** * * * There will NOT be a leap second introduced * * in UTC at the end of June 2021 * * * * The US Naval Observatory's Rapid Service/Prediction Center website * * (maia.usno.navy.mil) must undergo modernization and has been * * offline since 24 October 2019. The expected completion of work and * * return of service will be no earlier than Summer of 2021. * * * * Although the Bulletin A makes several references to maia, the * * paragraph above supersedes any information contained in the * * Bulletin A text. * * * * Updated EOPs are available at NASA's Archive of Space Geodesy Data: * * https://cddis.nasa.gov/archive/products/iers * * ftps://gdc.cddis.eosdis.nasa.gov/products/iers * * Daily EOP data may be available here by 18:00 UTC, and Bulletin A * * EOP data may be available by 20:00 UTC. * * For additional information on accessing CDDIS, please refer to: * * https://cddis.nasa.gov/About/CDDIS_File_Download_FAQ.html * * * * Updated EOPs may also be available at IERS: * * https://datacenter.iers.org/eop.php * * EOP data files are uploaded directly from USNO to this site each * * day. For further information, contact the IERS directly. * * * * Users should verify results obtained from these sites; we cannot * * guarantee the integrity or timeliness of files provided at * * third-party sites. * * * * Questions and enquiries about EOPs can be emailed to the * * following address: * * usn.ncr.navobsydc.mbx.eopcp@mail.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 21 2 19 59264 0.05091 .00009 0.36204 .00009 -0.171982 0.000015 21 2 20 59265 0.05139 .00009 0.36302 .00009 -0.171885 0.000015 21 2 21 59266 0.05134 .00009 0.36387 .00009 -0.171563 0.000013 21 2 22 59267 0.05069 .00009 0.36458 .00009 -0.171043 0.000010 21 2 23 59268 0.04991 .00009 0.36521 .00009 -0.170421 0.000007 21 2 24 59269 0.04956 .00009 0.36564 .00009 -0.169812 0.000006 21 2 25 59270 0.04978 .00009 0.36607 .00009 -0.169338 0.000007 _______________________________________________________________________ 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 = 0.1253 - 0.1078 cos A + 0.0142 sin A + 0.0276 cos C - 0.0039 sin C y = 0.3574 + 0.0127 cos A + 0.0989 sin A - 0.0039 cos C - 0.0276 sin C UT1-UTC = -0.1610 + 0.00019 (MJD - 59278) - (UT2-UT1) where A = 2*pi*(MJD-59270)/365.25 and C = 2*pi*(MJD-59270)/435. TAI-UTC(MJD 59271) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59270)**0.80 S t = 0.00025 (MJD-59270)**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) 2021 2 26 59271 0.0502 0.3667 -0.16906 2021 2 27 59272 0.0507 0.3676 -0.16906 2021 2 28 59273 0.0511 0.3687 -0.16932 2021 3 1 59274 0.0513 0.3700 -0.16982 2021 3 2 59275 0.0512 0.3713 -0.17046 2021 3 3 59276 0.0511 0.3725 -0.17111 2021 3 4 59277 0.0511 0.3737 -0.17164 2021 3 5 59278 0.0512 0.3748 -0.17195 2021 3 6 59279 0.0514 0.3759 -0.17202 2021 3 7 59280 0.0516 0.3770 -0.17186 2021 3 8 59281 0.0519 0.3782 -0.17155 2021 3 9 59282 0.0522 0.3794 -0.17121 2021 3 10 59283 0.0525 0.3807 -0.17092 2021 3 11 59284 0.0527 0.3820 -0.17076 2021 3 12 59285 0.0531 0.3832 -0.17079 2021 3 13 59286 0.0534 0.3845 -0.17102 2021 3 14 59287 0.0539 0.3857 -0.17142 2021 3 15 59288 0.0543 0.3870 -0.17193 2021 3 16 59289 0.0548 0.3883 -0.17247 2021 3 17 59290 0.0553 0.3896 -0.17297 2021 3 18 59291 0.0558 0.3909 -0.17338 2021 3 19 59292 0.0563 0.3922 -0.17367 2021 3 20 59293 0.0568 0.3934 -0.17382 2021 3 21 59294 0.0574 0.3946 -0.17386 2021 3 22 59295 0.0580 0.3958 -0.17382 2021 3 23 59296 0.0586 0.3970 -0.17376 2021 3 24 59297 0.0593 0.3982 -0.17374 2021 3 25 59298 0.0600 0.3994 -0.17386 2021 3 26 59299 0.0607 0.4006 -0.17420 2021 3 27 59300 0.0615 0.4018 -0.17480 2021 3 28 59301 0.0622 0.4029 -0.17565 2021 3 29 59302 0.0630 0.4041 -0.17666 2021 3 30 59303 0.0638 0.4052 -0.17769 2021 3 31 59304 0.0646 0.4063 -0.17859 2021 4 1 59305 0.0655 0.4074 -0.17926 2021 4 2 59306 0.0664 0.4085 -0.17964 2021 4 3 59307 0.0673 0.4096 -0.17978 2021 4 4 59308 0.0682 0.4106 -0.17975 2021 4 5 59309 0.0692 0.4117 -0.17966 2021 4 6 59310 0.0702 0.4127 -0.17961 2021 4 7 59311 0.0712 0.4137 -0.17967 2021 4 8 59312 0.0722 0.4147 -0.17987 2021 4 9 59313 0.0732 0.4157 -0.18020 2021 4 10 59314 0.0743 0.4167 -0.18064 2021 4 11 59315 0.0754 0.4176 -0.18114 2021 4 12 59316 0.0765 0.4186 -0.18163 2021 4 13 59317 0.0776 0.4195 -0.18206 2021 4 14 59318 0.0788 0.4204 -0.18236 2021 4 15 59319 0.0799 0.4213 -0.18252 2021 4 16 59320 0.0811 0.4222 -0.18251 2021 4 17 59321 0.0823 0.4231 -0.18237 2021 4 18 59322 0.0836 0.4239 -0.18213 2021 4 19 59323 0.0848 0.4247 -0.18185 2021 4 20 59324 0.0861 0.4255 -0.18160 2021 4 21 59325 0.0874 0.4263 -0.18145 2021 4 22 59326 0.0887 0.4271 -0.18149 2021 4 23 59327 0.0900 0.4279 -0.18178 2021 4 24 59328 0.0913 0.4286 -0.18234 2021 4 25 59329 0.0927 0.4293 -0.18313 2021 4 26 59330 0.0940 0.4300 -0.18402 2021 4 27 59331 0.0954 0.4307 -0.18487 2021 4 28 59332 0.0968 0.4313 -0.18552 2021 4 29 59333 0.0982 0.4320 -0.18589 2021 4 30 59334 0.0997 0.4326 -0.18596 2021 5 1 59335 0.1011 0.4332 -0.18582 2021 5 2 59336 0.1025 0.4338 -0.18557 2021 5 3 59337 0.1040 0.4343 -0.18532 2021 5 4 59338 0.1055 0.4348 -0.18515 2021 5 5 59339 0.1070 0.4354 -0.18510 2021 5 6 59340 0.1085 0.4358 -0.18517 2021 5 7 59341 0.1100 0.4363 -0.18533 2021 5 8 59342 0.1115 0.4367 -0.18554 2021 5 9 59343 0.1131 0.4372 -0.18575 2021 5 10 59344 0.1146 0.4376 -0.18589 2021 5 11 59345 0.1162 0.4379 -0.18592 2021 5 12 59346 0.1178 0.4383 -0.18580 2021 5 13 59347 0.1193 0.4386 -0.18552 2021 5 14 59348 0.1209 0.4389 -0.18507 2021 5 15 59349 0.1225 0.4392 -0.18448 2021 5 16 59350 0.1241 0.4394 -0.18381 2021 5 17 59351 0.1257 0.4397 -0.18312 2021 5 18 59352 0.1273 0.4399 -0.18249 2021 5 19 59353 0.1290 0.4401 -0.18199 2021 5 20 59354 0.1306 0.4402 -0.18169 2021 5 21 59355 0.1322 0.4404 -0.18162 2021 5 22 59356 0.1338 0.4405 -0.18177 2021 5 23 59357 0.1355 0.4405 -0.18207 2021 5 24 59358 0.1371 0.4406 -0.18240 2021 5 25 59359 0.1388 0.4406 -0.18261 2021 5 26 59360 0.1404 0.4406 -0.18259 2021 5 27 59361 0.1420 0.4406 -0.18227 2021 5 28 59362 0.1437 0.4406 -0.18168 2021 5 29 59363 0.1453 0.4405 -0.18094 2021 5 30 59364 0.1470 0.4404 -0.18015 2021 5 31 59365 0.1486 0.4403 -0.17943 2021 6 1 59366 0.1503 0.4402 -0.17882 2021 6 2 59367 0.1519 0.4400 -0.17832 2021 6 3 59368 0.1536 0.4398 -0.17792 2021 6 4 59369 0.1552 0.4396 -0.17756 2021 6 5 59370 0.1569 0.4393 -0.17719 2021 6 6 59371 0.1585 0.4391 -0.17675 2021 6 7 59372 0.1601 0.4388 -0.17620 2021 6 8 59373 0.1618 0.4385 -0.17550 2021 6 9 59374 0.1634 0.4381 -0.17462 2021 6 10 59375 0.1650 0.4377 -0.17359 2021 6 11 59376 0.1666 0.4374 -0.17241 2021 6 12 59377 0.1682 0.4369 -0.17114 2021 6 13 59378 0.1698 0.4365 -0.16984 2021 6 14 59379 0.1714 0.4360 -0.16860 2021 6 15 59380 0.1730 0.4355 -0.16748 2021 6 16 59381 0.1746 0.4350 -0.16653 2021 6 17 59382 0.1762 0.4345 -0.16580 2021 6 18 59383 0.1777 0.4339 -0.16529 2021 6 19 59384 0.1793 0.4333 -0.16494 2021 6 20 59385 0.1808 0.4327 -0.16468 2021 6 21 59386 0.1823 0.4320 -0.16437 2021 6 22 59387 0.1839 0.4314 -0.16389 2021 6 23 59388 0.1854 0.4307 -0.16317 2021 6 24 59389 0.1869 0.4300 -0.16219 2021 6 25 59390 0.1883 0.4292 -0.16102 2021 6 26 59391 0.1898 0.4285 -0.15978 2021 6 27 59392 0.1913 0.4277 -0.15858 2021 6 28 59393 0.1927 0.4269 -0.15751 2021 6 29 59394 0.1941 0.4261 -0.15658 2021 6 30 59395 0.1955 0.4252 -0.15577 2021 7 1 59396 0.1969 0.4244 -0.15504 2021 7 2 59397 0.1983 0.4235 -0.15432 2021 7 3 59398 0.1997 0.4225 -0.15355 2021 7 4 59399 0.2010 0.4216 -0.15269 2021 7 5 59400 0.2024 0.4207 -0.15169 2021 7 6 59401 0.2037 0.4197 -0.15053 2021 7 7 59402 0.2050 0.4187 -0.14921 2021 7 8 59403 0.2062 0.4177 -0.14775 2021 7 9 59404 0.2075 0.4166 -0.14619 2021 7 10 59405 0.2087 0.4155 -0.14460 2021 7 11 59406 0.2099 0.4145 -0.14305 2021 7 12 59407 0.2111 0.4134 -0.14161 2021 7 13 59408 0.2123 0.4122 -0.14035 2021 7 14 59409 0.2135 0.4111 -0.13930 2021 7 15 59410 0.2146 0.4099 -0.13847 2021 7 16 59411 0.2157 0.4088 -0.13781 2021 7 17 59412 0.2168 0.4076 -0.13723 2021 7 18 59413 0.2179 0.4064 -0.13665 2021 7 19 59414 0.2189 0.4051 -0.13594 2021 7 20 59415 0.2200 0.4039 -0.13504 2021 7 21 59416 0.2210 0.4026 -0.13390 2021 7 22 59417 0.2219 0.4013 -0.13258 2021 7 23 59418 0.2229 0.4000 -0.13116 2021 7 24 59419 0.2238 0.3987 -0.12976 2021 7 25 59420 0.2247 0.3974 -0.12849 2021 7 26 59421 0.2256 0.3961 -0.12739 2021 7 27 59422 0.2264 0.3947 -0.12645 2021 7 28 59423 0.2273 0.3933 -0.12564 2021 7 29 59424 0.2281 0.3920 -0.12488 2021 7 30 59425 0.2288 0.3906 -0.12410 2021 7 31 59426 0.2296 0.3891 -0.12326 2021 8 1 59427 0.2303 0.3877 -0.12229 2021 8 2 59428 0.2310 0.3863 -0.12118 2021 8 3 59429 0.2317 0.3848 -0.11992 2021 8 4 59430 0.2323 0.3834 -0.11853 2021 8 5 59431 0.2329 0.3819 -0.11705 2021 8 6 59432 0.2335 0.3804 -0.11553 2021 8 7 59433 0.2341 0.3789 -0.11405 2021 8 8 59434 0.2346 0.3774 -0.11269 2021 8 9 59435 0.2351 0.3759 -0.11151 2021 8 10 59436 0.2356 0.3744 -0.11056 2021 8 11 59437 0.2360 0.3729 -0.10986 2021 8 12 59438 0.2364 0.3713 -0.10937 2021 8 13 59439 0.2368 0.3698 -0.10898 2021 8 14 59440 0.2372 0.3682 -0.10860 2021 8 15 59441 0.2375 0.3667 -0.10812 2021 8 16 59442 0.2378 0.3651 -0.10746 2021 8 17 59443 0.2380 0.3635 -0.10658 2021 8 18 59444 0.2383 0.3620 -0.10553 2021 8 19 59445 0.2385 0.3604 -0.10436 2021 8 20 59446 0.2386 0.3588 -0.10320 2021 8 21 59447 0.2388 0.3572 -0.10215 2021 8 22 59448 0.2389 0.3556 -0.10127 2021 8 23 59449 0.2390 0.3540 -0.10059 2021 8 24 59450 0.2390 0.3524 -0.10007 2021 8 25 59451 0.2391 0.3508 -0.09965 2021 8 26 59452 0.2390 0.3492 -0.09924 2021 8 27 59453 0.2390 0.3476 -0.09877 2021 8 28 59454 0.2389 0.3460 -0.09819 2021 8 29 59455 0.2388 0.3444 -0.09745 2021 8 30 59456 0.2387 0.3428 -0.09655 2021 8 31 59457 0.2385 0.3412 -0.09549 2021 9 1 59458 0.2383 0.3396 -0.09430 2021 9 2 59459 0.2381 0.3380 -0.09303 2021 9 3 59460 0.2378 0.3364 -0.09176 2021 9 4 59461 0.2376 0.3348 -0.09055 2021 9 5 59462 0.2372 0.3332 -0.08950 2021 9 6 59463 0.2369 0.3316 -0.08868 2021 9 7 59464 0.2365 0.3300 -0.08811 2021 9 8 59465 0.2361 0.3284 -0.08779 2021 9 9 59466 0.2357 0.3268 -0.08762 2021 9 10 59467 0.2352 0.3252 -0.08751 2021 9 11 59468 0.2347 0.3237 -0.08731 2021 9 12 59469 0.2341 0.3221 -0.08694 2021 9 13 59470 0.2336 0.3205 -0.08634 2021 9 14 59471 0.2330 0.3190 -0.08554 2021 9 15 59472 0.2324 0.3175 -0.08462 2021 9 16 59473 0.2317 0.3159 -0.08370 2021 9 17 59474 0.2310 0.3144 -0.08290 2021 9 18 59475 0.2303 0.3129 -0.08230 2021 9 19 59476 0.2296 0.3114 -0.08195 2021 9 20 59477 0.2288 0.3099 -0.08182 2021 9 21 59478 0.2280 0.3084 -0.08185 2021 9 22 59479 0.2272 0.3069 -0.08198 2021 9 23 59480 0.2263 0.3054 -0.08211 2021 9 24 59481 0.2254 0.3040 -0.08220 2021 9 25 59482 0.2245 0.3025 -0.08220 2021 9 26 59483 0.2236 0.3011 -0.08210 2021 9 27 59484 0.2226 0.2997 -0.08191 2021 9 28 59485 0.2216 0.2983 -0.08165 2021 9 29 59486 0.2206 0.2969 -0.08137 2021 9 30 59487 0.2195 0.2955 -0.08112 2021 10 1 59488 0.2184 0.2942 -0.08096 2021 10 2 59489 0.2173 0.2928 -0.08093 2021 10 3 59490 0.2162 0.2915 -0.08111 2021 10 4 59491 0.2150 0.2902 -0.08153 2021 10 5 59492 0.2139 0.2889 -0.08222 2021 10 6 59493 0.2126 0.2876 -0.08310 2021 10 7 59494 0.2114 0.2863 -0.08402 2021 10 8 59495 0.2102 0.2851 -0.08486 2021 10 9 59496 0.2089 0.2839 -0.08543 2021 10 10 59497 0.2076 0.2827 -0.08567 2021 10 11 59498 0.2062 0.2815 -0.08560 2021 10 12 59499 0.2049 0.2803 -0.08529 2021 10 13 59500 0.2035 0.2791 -0.08491 2021 10 14 59501 0.2021 0.2780 -0.08461 2021 10 15 59502 0.2007 0.2769 -0.08445 2021 10 16 59503 0.1992 0.2758 -0.08447 2021 10 17 59504 0.1978 0.2747 -0.08470 2021 10 18 59505 0.1963 0.2737 -0.08507 2021 10 19 59506 0.1948 0.2726 -0.08546 2021 10 20 59507 0.1932 0.2716 -0.08582 2021 10 21 59508 0.1917 0.2706 -0.08613 2021 10 22 59509 0.1901 0.2697 -0.08630 2021 10 23 59510 0.1885 0.2687 -0.08626 2021 10 24 59511 0.1869 0.2678 -0.08600 2021 10 25 59512 0.1853 0.2669 -0.08555 2021 10 26 59513 0.1837 0.2661 -0.08500 2021 10 27 59514 0.1820 0.2652 -0.08439 2021 10 28 59515 0.1803 0.2644 -0.08385 2021 10 29 59516 0.1787 0.2636 -0.08350 2021 10 30 59517 0.1769 0.2628 -0.08332 2021 10 31 59518 0.1752 0.2621 -0.08340 2021 11 1 59519 0.1735 0.2613 -0.08377 2021 11 2 59520 0.1717 0.2606 -0.08440 2021 11 3 59521 0.1700 0.2600 -0.08515 2021 11 4 59522 0.1682 0.2593 -0.08595 2021 11 5 59523 0.1664 0.2587 -0.08666 2021 11 6 59524 0.1646 0.2581 -0.08715 2021 11 7 59525 0.1628 0.2575 -0.08737 2021 11 8 59526 0.1609 0.2570 -0.08735 2021 11 9 59527 0.1591 0.2565 -0.08728 2021 11 10 59528 0.1572 0.2560 -0.08719 2021 11 11 59529 0.1554 0.2556 -0.08717 2021 11 12 59530 0.1535 0.2551 -0.08729 2021 11 13 59531 0.1516 0.2547 -0.08756 2021 11 14 59532 0.1497 0.2543 -0.08790 2021 11 15 59533 0.1479 0.2540 -0.08831 2021 11 16 59534 0.1460 0.2537 -0.08874 2021 11 17 59535 0.1440 0.2534 -0.08911 2021 11 18 59536 0.1421 0.2531 -0.08938 2021 11 19 59537 0.1402 0.2529 -0.08950 2021 11 20 59538 0.1383 0.2527 -0.08954 2021 11 21 59539 0.1363 0.2525 -0.08940 2021 11 22 59540 0.1344 0.2524 -0.08913 2021 11 23 59541 0.1325 0.2522 -0.08881 2021 11 24 59542 0.1305 0.2521 -0.08841 2021 11 25 59543 0.1286 0.2521 -0.08800 2021 11 26 59544 0.1266 0.2521 -0.08769 2021 11 27 59545 0.1247 0.2521 -0.08764 2021 11 28 59546 0.1227 0.2521 -0.08795 2021 11 29 59547 0.1208 0.2521 -0.08853 2021 11 30 59548 0.1188 0.2522 -0.08942 2021 12 1 59549 0.1169 0.2523 -0.09042 2021 12 2 59550 0.1149 0.2525 -0.09139 2021 12 3 59551 0.1130 0.2527 -0.09219 2021 12 4 59552 0.1110 0.2529 -0.09269 2021 12 5 59553 0.1091 0.2531 -0.09295 2021 12 6 59554 0.1072 0.2533 -0.09307 2021 12 7 59555 0.1052 0.2536 -0.09314 2021 12 8 59556 0.1033 0.2540 -0.09328 2021 12 9 59557 0.1014 0.2543 -0.09356 2021 12 10 59558 0.0995 0.2547 -0.09401 2021 12 11 59559 0.0976 0.2551 -0.09464 2021 12 12 59560 0.0957 0.2555 -0.09536 2021 12 13 59561 0.0938 0.2560 -0.09615 2021 12 14 59562 0.0919 0.2565 -0.09684 2021 12 15 59563 0.0900 0.2570 -0.09739 2021 12 16 59564 0.0881 0.2576 -0.09781 2021 12 17 59565 0.0863 0.2581 -0.09808 2021 12 18 59566 0.0844 0.2587 -0.09821 2021 12 19 59567 0.0826 0.2594 -0.09822 2021 12 20 59568 0.0807 0.2600 -0.09811 2021 12 21 59569 0.0789 0.2607 -0.09802 2021 12 22 59570 0.0771 0.2615 -0.09790 2021 12 23 59571 0.0753 0.2622 -0.09784 2021 12 24 59572 0.0735 0.2630 -0.09794 2021 12 25 59573 0.0718 0.2638 -0.09824 2021 12 26 59574 0.0700 0.2646 -0.09881 2021 12 27 59575 0.0683 0.2655 -0.09958 2021 12 28 59576 0.0666 0.2663 -0.10045 2021 12 29 59577 0.0649 0.2673 -0.10133 2021 12 30 59578 0.0632 0.2682 -0.10212 2021 12 31 59579 0.0615 0.2691 -0.10259 2022 1 1 59580 0.0599 0.2701 -0.10280 2022 1 2 59581 0.0582 0.2711 -0.10278 2022 1 3 59582 0.0566 0.2722 -0.10260 2022 1 4 59583 0.0550 0.2732 -0.10245 2022 1 5 59584 0.0534 0.2743 -0.10249 2022 1 6 59585 0.0519 0.2754 -0.10272 2022 1 7 59586 0.0503 0.2766 -0.10309 2022 1 8 59587 0.0488 0.2777 -0.10355 2022 1 9 59588 0.0473 0.2789 -0.10402 2022 1 10 59589 0.0458 0.2801 -0.10443 2022 1 11 59590 0.0444 0.2814 -0.10471 2022 1 12 59591 0.0429 0.2826 -0.10475 2022 1 13 59592 0.0415 0.2839 -0.10458 2022 1 14 59593 0.0402 0.2852 -0.10422 2022 1 15 59594 0.0388 0.2865 -0.10371 2022 1 16 59595 0.0375 0.2878 -0.10308 2022 1 17 59596 0.0361 0.2892 -0.10240 2022 1 18 59597 0.0349 0.2906 -0.10176 2022 1 19 59598 0.0336 0.2920 -0.10131 2022 1 20 59599 0.0324 0.2934 -0.10106 2022 1 21 59600 0.0311 0.2948 -0.10101 2022 1 22 59601 0.0300 0.2963 -0.10115 2022 1 23 59602 0.0288 0.2978 -0.10148 2022 1 24 59603 0.0277 0.2993 -0.10203 2022 1 25 59604 0.0266 0.3008 -0.10272 2022 1 26 59605 0.0255 0.3023 -0.10342 2022 1 27 59606 0.0244 0.3039 -0.10399 2022 1 28 59607 0.0234 0.3054 -0.10437 2022 1 29 59608 0.0224 0.3070 -0.10457 2022 1 30 59609 0.0215 0.3086 -0.10463 2022 1 31 59610 0.0205 0.3102 -0.10467 2022 2 1 59611 0.0196 0.3119 -0.10479 2022 2 2 59612 0.0188 0.3135 -0.10510 2022 2 3 59613 0.0179 0.3152 -0.10559 2022 2 4 59614 0.0171 0.3168 -0.10621 2022 2 5 59615 0.0163 0.3185 -0.10684 2022 2 6 59616 0.0156 0.3202 -0.10743 2022 2 7 59617 0.0149 0.3219 -0.10786 2022 2 8 59618 0.0142 0.3237 -0.10809 2022 2 9 59619 0.0135 0.3254 -0.10808 2022 2 10 59620 0.0129 0.3271 -0.10790 2022 2 11 59621 0.0123 0.3289 -0.10753 2022 2 12 59622 0.0118 0.3306 -0.10704 2022 2 13 59623 0.0112 0.3324 -0.10651 2022 2 14 59624 0.0107 0.3342 -0.10602 2022 2 15 59625 0.0103 0.3360 -0.10568 2022 2 16 59626 0.0099 0.3378 -0.10548 2022 2 17 59627 0.0095 0.3396 -0.10555 2022 2 18 59628 0.0091 0.3414 -0.10594 2022 2 19 59629 0.0088 0.3432 -0.10658 2022 2 20 59630 0.0085 0.3451 -0.10741 2022 2 21 59631 0.0082 0.3469 -0.10835 2022 2 22 59632 0.0080 0.3488 -0.10925 2022 2 23 59633 0.0078 0.3506 -0.10998 2022 2 24 59634 0.0077 0.3524 -0.11053 2022 2 25 59635 0.0075 0.3543 -0.11090 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) 59248 -108.70 0.27 -6.20 0.04 59249 -109.09 0.27 -6.15 0.04 59250 -109.40 0.27 -6.06 0.04 59251 -109.58 0.64 -5.98 0.03 59252 -109.55 0.50 -5.95 0.18 59253 -109.31 0.50 -5.96 0.18 59254 -108.96 0.47 -6.02 0.20 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59248 0.085 0.108 -0.001 0.036 59249 0.081 0.108 0.015 0.036 59250 0.092 0.108 0.036 0.036 59251 0.108 0.254 0.062 0.031 59252 0.125 0.199 0.091 0.185 59253 0.143 0.199 0.123 0.185 59254 0.161 0.189 0.157 0.197 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).