********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 18 March 2021 Vol. XXXIV No. 011 ______________________________________________________________________ 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 3 12 59285 0.06059 .00009 0.38777 .00009 -0.171088 0.000014 21 3 13 59286 0.06175 .00009 0.38936 .00009 -0.171294 0.000013 21 3 14 59287 0.06305 .00009 0.39097 .00009 -0.171602 0.000009 21 3 15 59288 0.06430 .00009 0.39254 .00009 -0.171937 0.000005 21 3 16 59289 0.06524 .00009 0.39421 .00009 -0.172211 0.000004 21 3 17 59290 0.06566 .00009 0.39589 .00009 -0.172361 0.000003 21 3 18 59291 0.06583 .00009 0.39747 .00009 -0.172367 0.000055 _______________________________________________________________________ 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 = 0.1273 - 0.0939 cos A + 0.0571 sin A + 0.0263 cos C - 0.0175 sin C y = 0.3619 + 0.0511 cos A + 0.0866 sin A - 0.0175 cos C - 0.0263 sin C UT1-UTC = -0.1505 + 0.00022 (MJD - 59299) - (UT2-UT1) where A = 2*pi*(MJD-59291)/365.25 and C = 2*pi*(MJD-59291)/435. TAI-UTC(MJD 59292) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59291)**0.80 S t = 0.00025 (MJD-59291)**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 3 19 59292 0.0660 0.3988 -0.17223 2021 3 20 59293 0.0663 0.4001 -0.17194 2021 3 21 59294 0.0669 0.4012 -0.17156 2021 3 22 59295 0.0675 0.4023 -0.17115 2021 3 23 59296 0.0683 0.4034 -0.17078 2021 3 24 59297 0.0690 0.4045 -0.17049 2021 3 25 59298 0.0697 0.4057 -0.17036 2021 3 26 59299 0.0703 0.4069 -0.17047 2021 3 27 59300 0.0709 0.4080 -0.17085 2021 3 28 59301 0.0715 0.4091 -0.17150 2021 3 29 59302 0.0722 0.4102 -0.17229 2021 3 30 59303 0.0729 0.4112 -0.17307 2021 3 31 59304 0.0736 0.4122 -0.17371 2021 4 1 59305 0.0744 0.4132 -0.17413 2021 4 2 59306 0.0752 0.4141 -0.17431 2021 4 3 59307 0.0760 0.4151 -0.17425 2021 4 4 59308 0.0768 0.4160 -0.17405 2021 4 5 59309 0.0777 0.4169 -0.17381 2021 4 6 59310 0.0786 0.4177 -0.17362 2021 4 7 59311 0.0796 0.4185 -0.17355 2021 4 8 59312 0.0806 0.4194 -0.17362 2021 4 9 59313 0.0817 0.4202 -0.17380 2021 4 10 59314 0.0828 0.4210 -0.17408 2021 4 11 59315 0.0838 0.4218 -0.17440 2021 4 12 59316 0.0849 0.4226 -0.17471 2021 4 13 59317 0.0861 0.4234 -0.17497 2021 4 14 59318 0.0872 0.4242 -0.17514 2021 4 15 59319 0.0884 0.4249 -0.17520 2021 4 16 59320 0.0896 0.4256 -0.17513 2021 4 17 59321 0.0908 0.4263 -0.17496 2021 4 18 59322 0.0921 0.4270 -0.17471 2021 4 19 59323 0.0933 0.4277 -0.17442 2021 4 20 59324 0.0946 0.4284 -0.17418 2021 4 21 59325 0.0959 0.4290 -0.17404 2021 4 22 59326 0.0972 0.4297 -0.17410 2021 4 23 59327 0.0986 0.4303 -0.17441 2021 4 24 59328 0.0999 0.4309 -0.17498 2021 4 25 59329 0.1013 0.4314 -0.17576 2021 4 26 59330 0.1027 0.4320 -0.17665 2021 4 27 59331 0.1040 0.4326 -0.17748 2021 4 28 59332 0.1054 0.4331 -0.17810 2021 4 29 59333 0.1069 0.4336 -0.17844 2021 4 30 59334 0.1083 0.4341 -0.17847 2021 5 1 59335 0.1097 0.4345 -0.17828 2021 5 2 59336 0.1112 0.4350 -0.17798 2021 5 3 59337 0.1126 0.4354 -0.17767 2021 5 4 59338 0.1141 0.4358 -0.17744 2021 5 5 59339 0.1156 0.4362 -0.17733 2021 5 6 59340 0.1171 0.4365 -0.17733 2021 5 7 59341 0.1186 0.4369 -0.17742 2021 5 8 59342 0.1201 0.4372 -0.17756 2021 5 9 59343 0.1216 0.4375 -0.17769 2021 5 10 59344 0.1231 0.4378 -0.17776 2021 5 11 59345 0.1246 0.4380 -0.17772 2021 5 12 59346 0.1262 0.4382 -0.17752 2021 5 13 59347 0.1277 0.4384 -0.17717 2021 5 14 59348 0.1293 0.4386 -0.17665 2021 5 15 59349 0.1308 0.4387 -0.17600 2021 5 16 59350 0.1324 0.4389 -0.17527 2021 5 17 59351 0.1339 0.4390 -0.17453 2021 5 18 59352 0.1355 0.4391 -0.17386 2021 5 19 59353 0.1371 0.4391 -0.17332 2021 5 20 59354 0.1387 0.4391 -0.17300 2021 5 21 59355 0.1403 0.4392 -0.17292 2021 5 22 59356 0.1418 0.4391 -0.17307 2021 5 23 59357 0.1434 0.4391 -0.17338 2021 5 24 59358 0.1450 0.4390 -0.17373 2021 5 25 59359 0.1466 0.4389 -0.17396 2021 5 26 59360 0.1482 0.4388 -0.17395 2021 5 27 59361 0.1498 0.4387 -0.17366 2021 5 28 59362 0.1514 0.4385 -0.17310 2021 5 29 59363 0.1530 0.4383 -0.17237 2021 5 30 59364 0.1546 0.4381 -0.17161 2021 5 31 59365 0.1562 0.4379 -0.17090 2021 6 1 59366 0.1578 0.4376 -0.17031 2021 6 2 59367 0.1594 0.4374 -0.16984 2021 6 3 59368 0.1610 0.4370 -0.16947 2021 6 4 59369 0.1625 0.4367 -0.16914 2021 6 5 59370 0.1641 0.4363 -0.16881 2021 6 6 59371 0.1657 0.4360 -0.16843 2021 6 7 59372 0.1673 0.4356 -0.16793 2021 6 8 59373 0.1688 0.4351 -0.16729 2021 6 9 59374 0.1704 0.4347 -0.16648 2021 6 10 59375 0.1719 0.4342 -0.16551 2021 6 11 59376 0.1735 0.4337 -0.16440 2021 6 12 59377 0.1750 0.4332 -0.16321 2021 6 13 59378 0.1766 0.4326 -0.16198 2021 6 14 59379 0.1781 0.4320 -0.16080 2021 6 15 59380 0.1796 0.4314 -0.15974 2021 6 16 59381 0.1811 0.4308 -0.15884 2021 6 17 59382 0.1826 0.4302 -0.15815 2021 6 18 59383 0.1841 0.4295 -0.15767 2021 6 19 59384 0.1856 0.4288 -0.15735 2021 6 20 59385 0.1870 0.4281 -0.15711 2021 6 21 59386 0.1885 0.4274 -0.15681 2021 6 22 59387 0.1899 0.4266 -0.15634 2021 6 23 59388 0.1913 0.4258 -0.15561 2021 6 24 59389 0.1928 0.4250 -0.15461 2021 6 25 59390 0.1942 0.4242 -0.15342 2021 6 26 59391 0.1956 0.4233 -0.15216 2021 6 27 59392 0.1969 0.4225 -0.15094 2021 6 28 59393 0.1983 0.4216 -0.14984 2021 6 29 59394 0.1996 0.4207 -0.14888 2021 6 30 59395 0.2010 0.4197 -0.14805 2021 7 1 59396 0.2023 0.4188 -0.14729 2021 7 2 59397 0.2036 0.4178 -0.14654 2021 7 3 59398 0.2048 0.4168 -0.14575 2021 7 4 59399 0.2061 0.4158 -0.14485 2021 7 5 59400 0.2073 0.4147 -0.14381 2021 7 6 59401 0.2086 0.4137 -0.14261 2021 7 7 59402 0.2098 0.4126 -0.14125 2021 7 8 59403 0.2110 0.4115 -0.13976 2021 7 9 59404 0.2121 0.4104 -0.13816 2021 7 10 59405 0.2133 0.4092 -0.13654 2021 7 11 59406 0.2144 0.4081 -0.13495 2021 7 12 59407 0.2155 0.4069 -0.13347 2021 7 13 59408 0.2166 0.4057 -0.13218 2021 7 14 59409 0.2177 0.4045 -0.13110 2021 7 15 59410 0.2187 0.4033 -0.13024 2021 7 16 59411 0.2197 0.4020 -0.12954 2021 7 17 59412 0.2207 0.4008 -0.12895 2021 7 18 59413 0.2217 0.3995 -0.12833 2021 7 19 59414 0.2226 0.3982 -0.12761 2021 7 20 59415 0.2236 0.3969 -0.12668 2021 7 21 59416 0.2245 0.3956 -0.12552 2021 7 22 59417 0.2254 0.3943 -0.12417 2021 7 23 59418 0.2262 0.3929 -0.12273 2021 7 24 59419 0.2270 0.3915 -0.12132 2021 7 25 59420 0.2279 0.3902 -0.12002 2021 7 26 59421 0.2286 0.3888 -0.11890 2021 7 27 59422 0.2294 0.3874 -0.11794 2021 7 28 59423 0.2301 0.3859 -0.11710 2021 7 29 59424 0.2308 0.3845 -0.11632 2021 7 30 59425 0.2315 0.3831 -0.11553 2021 7 31 59426 0.2322 0.3816 -0.11466 2021 8 1 59427 0.2328 0.3802 -0.11367 2021 8 2 59428 0.2334 0.3787 -0.11255 2021 8 3 59429 0.2339 0.3772 -0.11128 2021 8 4 59430 0.2345 0.3757 -0.10988 2021 8 5 59431 0.2350 0.3742 -0.10839 2021 8 6 59432 0.2355 0.3727 -0.10687 2021 8 7 59433 0.2359 0.3712 -0.10538 2021 8 8 59434 0.2364 0.3696 -0.10401 2021 8 9 59435 0.2368 0.3681 -0.10284 2021 8 10 59436 0.2371 0.3665 -0.10189 2021 8 11 59437 0.2375 0.3650 -0.10119 2021 8 12 59438 0.2378 0.3634 -0.10069 2021 8 13 59439 0.2381 0.3619 -0.10031 2021 8 14 59440 0.2383 0.3603 -0.09992 2021 8 15 59441 0.2386 0.3587 -0.09943 2021 8 16 59442 0.2388 0.3571 -0.09876 2021 8 17 59443 0.2389 0.3555 -0.09788 2021 8 18 59444 0.2391 0.3539 -0.09681 2021 8 19 59445 0.2392 0.3524 -0.09563 2021 8 20 59446 0.2392 0.3508 -0.09446 2021 8 21 59447 0.2393 0.3492 -0.09339 2021 8 22 59448 0.2393 0.3476 -0.09251 2021 8 23 59449 0.2393 0.3460 -0.09182 2021 8 24 59450 0.2392 0.3443 -0.09129 2021 8 25 59451 0.2392 0.3427 -0.09086 2021 8 26 59452 0.2391 0.3411 -0.09046 2021 8 27 59453 0.2389 0.3395 -0.09001 2021 8 28 59454 0.2388 0.3379 -0.08945 2021 8 29 59455 0.2386 0.3363 -0.08875 2021 8 30 59456 0.2383 0.3347 -0.08791 2021 8 31 59457 0.2381 0.3331 -0.08694 2021 9 1 59458 0.2378 0.3315 -0.08586 2021 9 2 59459 0.2375 0.3299 -0.08474 2021 9 3 59460 0.2371 0.3283 -0.08363 2021 9 4 59461 0.2367 0.3268 -0.08263 2021 9 5 59462 0.2363 0.3252 -0.08181 2021 9 6 59463 0.2359 0.3236 -0.08122 2021 9 7 59464 0.2354 0.3220 -0.08091 2021 9 8 59465 0.2349 0.3205 -0.08084 2021 9 9 59466 0.2344 0.3189 -0.08094 2021 9 10 59467 0.2338 0.3173 -0.08108 2021 9 11 59468 0.2332 0.3158 -0.08112 2021 9 12 59469 0.2326 0.3143 -0.08099 2021 9 13 59470 0.2319 0.3127 -0.08063 2021 9 14 59471 0.2313 0.3112 -0.08006 2021 9 15 59472 0.2305 0.3097 -0.07936 2021 9 16 59473 0.2298 0.3082 -0.07864 2021 9 17 59474 0.2290 0.3067 -0.07800 2021 9 18 59475 0.2282 0.3052 -0.07752 2021 9 19 59476 0.2274 0.3037 -0.07724 2021 9 20 59477 0.2265 0.3023 -0.07714 2021 9 21 59478 0.2257 0.3008 -0.07716 2021 9 22 59479 0.2247 0.2994 -0.07724 2021 9 23 59480 0.2238 0.2980 -0.07729 2021 9 24 59481 0.2228 0.2965 -0.07725 2021 9 25 59482 0.2218 0.2951 -0.07705 2021 9 26 59483 0.2208 0.2938 -0.07669 2021 9 27 59484 0.2198 0.2924 -0.07616 2021 9 28 59485 0.2187 0.2910 -0.07550 2021 9 29 59486 0.2176 0.2897 -0.07475 2021 9 30 59487 0.2164 0.2884 -0.07398 2021 10 1 59488 0.2153 0.2871 -0.07327 2021 10 2 59489 0.2141 0.2858 -0.07270 2021 10 3 59490 0.2129 0.2845 -0.07235 2021 10 4 59491 0.2117 0.2832 -0.07228 2021 10 5 59492 0.2104 0.2820 -0.07250 2021 10 6 59493 0.2091 0.2808 -0.07296 2021 10 7 59494 0.2078 0.2796 -0.07354 2021 10 8 59495 0.2065 0.2784 -0.07408 2021 10 9 59496 0.2051 0.2772 -0.07445 2021 10 10 59497 0.2037 0.2760 -0.07454 2021 10 11 59498 0.2023 0.2749 -0.07437 2021 10 12 59499 0.2009 0.2738 -0.07399 2021 10 13 59500 0.1995 0.2727 -0.07350 2021 10 14 59501 0.1980 0.2716 -0.07302 2021 10 15 59502 0.1965 0.2706 -0.07263 2021 10 16 59503 0.1950 0.2696 -0.07240 2021 10 17 59504 0.1935 0.2686 -0.07232 2021 10 18 59505 0.1919 0.2676 -0.07236 2021 10 19 59506 0.1904 0.2666 -0.07246 2021 10 20 59507 0.1888 0.2657 -0.07256 2021 10 21 59508 0.1872 0.2648 -0.07259 2021 10 22 59509 0.1855 0.2639 -0.07254 2021 10 23 59510 0.1839 0.2630 -0.07240 2021 10 24 59511 0.1822 0.2622 -0.07215 2021 10 25 59512 0.1805 0.2613 -0.07183 2021 10 26 59513 0.1788 0.2606 -0.07145 2021 10 27 59514 0.1771 0.2598 -0.07104 2021 10 28 59515 0.1754 0.2590 -0.07064 2021 10 29 59516 0.1736 0.2583 -0.07033 2021 10 30 59517 0.1719 0.2576 -0.07015 2021 10 31 59518 0.1701 0.2570 -0.07015 2021 11 1 59519 0.1683 0.2563 -0.07048 2021 11 2 59520 0.1665 0.2557 -0.07109 2021 11 3 59521 0.1647 0.2551 -0.07186 2021 11 4 59522 0.1629 0.2545 -0.07269 2021 11 5 59523 0.1610 0.2540 -0.07351 2021 11 6 59524 0.1592 0.2535 -0.07416 2021 11 7 59525 0.1573 0.2530 -0.07452 2021 11 8 59526 0.1554 0.2526 -0.07470 2021 11 9 59527 0.1535 0.2521 -0.07480 2021 11 10 59528 0.1517 0.2517 -0.07495 2021 11 11 59529 0.1498 0.2514 -0.07525 2021 11 12 59530 0.1478 0.2510 -0.07568 2021 11 13 59531 0.1459 0.2507 -0.07627 2021 11 14 59532 0.1440 0.2504 -0.07697 2021 11 15 59533 0.1421 0.2502 -0.07771 2021 11 16 59534 0.1401 0.2499 -0.07847 2021 11 17 59535 0.1382 0.2497 -0.07912 2021 11 18 59536 0.1362 0.2496 -0.07959 2021 11 19 59537 0.1343 0.2494 -0.07987 2021 11 20 59538 0.1323 0.2493 -0.07987 2021 11 21 59539 0.1303 0.2492 -0.07963 2021 11 22 59540 0.1284 0.2492 -0.07920 2021 11 23 59541 0.1264 0.2491 -0.07863 2021 11 24 59542 0.1244 0.2491 -0.07806 2021 11 25 59543 0.1224 0.2492 -0.07759 2021 11 26 59544 0.1205 0.2492 -0.07726 2021 11 27 59545 0.1185 0.2493 -0.07712 2021 11 28 59546 0.1165 0.2494 -0.07724 2021 11 29 59547 0.1145 0.2496 -0.07760 2021 11 30 59548 0.1126 0.2498 -0.07810 2021 12 1 59549 0.1106 0.2500 -0.07865 2021 12 2 59550 0.1086 0.2502 -0.07918 2021 12 3 59551 0.1067 0.2505 -0.07953 2021 12 4 59552 0.1047 0.2508 -0.07958 2021 12 5 59553 0.1027 0.2511 -0.07931 2021 12 6 59554 0.1008 0.2515 -0.07881 2021 12 7 59555 0.0988 0.2518 -0.07826 2021 12 8 59556 0.0969 0.2523 -0.07776 2021 12 9 59557 0.0949 0.2527 -0.07745 2021 12 10 59558 0.0930 0.2532 -0.07740 2021 12 11 59559 0.0911 0.2537 -0.07749 2021 12 12 59560 0.0892 0.2542 -0.07768 2021 12 13 59561 0.0873 0.2548 -0.07790 2021 12 14 59562 0.0854 0.2554 -0.07807 2021 12 15 59563 0.0835 0.2560 -0.07810 2021 12 16 59564 0.0816 0.2566 -0.07797 2021 12 17 59565 0.0797 0.2573 -0.07771 2021 12 18 59566 0.0779 0.2580 -0.07730 2021 12 19 59567 0.0760 0.2587 -0.07675 2021 12 20 59568 0.0742 0.2595 -0.07612 2021 12 21 59569 0.0724 0.2603 -0.07553 2021 12 22 59570 0.0705 0.2611 -0.07499 2021 12 23 59571 0.0688 0.2619 -0.07452 2021 12 24 59572 0.0670 0.2628 -0.07422 2021 12 25 59573 0.0652 0.2637 -0.07410 2021 12 26 59574 0.0635 0.2646 -0.07415 2021 12 27 59575 0.0617 0.2655 -0.07437 2021 12 28 59576 0.0600 0.2665 -0.07473 2021 12 29 59577 0.0583 0.2675 -0.07511 2021 12 30 59578 0.0566 0.2685 -0.07541 2021 12 31 59579 0.0549 0.2696 -0.07550 2022 1 1 59580 0.0533 0.2707 -0.07546 2022 1 2 59581 0.0517 0.2718 -0.07520 2022 1 3 59582 0.0501 0.2729 -0.07484 2022 1 4 59583 0.0485 0.2741 -0.07454 2022 1 5 59584 0.0469 0.2752 -0.07433 2022 1 6 59585 0.0453 0.2764 -0.07424 2022 1 7 59586 0.0438 0.2776 -0.07428 2022 1 8 59587 0.0423 0.2789 -0.07451 2022 1 9 59588 0.0408 0.2802 -0.07489 2022 1 10 59589 0.0393 0.2815 -0.07526 2022 1 11 59590 0.0379 0.2828 -0.07564 2022 1 12 59591 0.0365 0.2841 -0.07588 2022 1 13 59592 0.0351 0.2855 -0.07597 2022 1 14 59593 0.0337 0.2868 -0.07589 2022 1 15 59594 0.0324 0.2882 -0.07563 2022 1 16 59595 0.0311 0.2897 -0.07530 2022 1 17 59596 0.0298 0.2911 -0.07497 2022 1 18 59597 0.0285 0.2926 -0.07470 2022 1 19 59598 0.0272 0.2941 -0.07454 2022 1 20 59599 0.0260 0.2956 -0.07454 2022 1 21 59600 0.0248 0.2971 -0.07475 2022 1 22 59601 0.0237 0.2986 -0.07521 2022 1 23 59602 0.0225 0.3002 -0.07588 2022 1 24 59603 0.0214 0.3017 -0.07673 2022 1 25 59604 0.0203 0.3033 -0.07758 2022 1 26 59605 0.0193 0.3049 -0.07833 2022 1 27 59606 0.0183 0.3066 -0.07895 2022 1 28 59607 0.0173 0.3082 -0.07938 2022 1 29 59608 0.0163 0.3099 -0.07964 2022 1 30 59609 0.0154 0.3115 -0.07979 2022 1 31 59610 0.0145 0.3132 -0.07993 2022 2 1 59611 0.0136 0.3149 -0.08024 2022 2 2 59612 0.0128 0.3166 -0.08069 2022 2 3 59613 0.0119 0.3184 -0.08131 2022 2 4 59614 0.0112 0.3201 -0.08209 2022 2 5 59615 0.0104 0.3219 -0.08293 2022 2 6 59616 0.0097 0.3236 -0.08381 2022 2 7 59617 0.0090 0.3254 -0.08462 2022 2 8 59618 0.0084 0.3272 -0.08525 2022 2 9 59619 0.0077 0.3290 -0.08571 2022 2 10 59620 0.0071 0.3308 -0.08601 2022 2 11 59621 0.0066 0.3326 -0.08605 2022 2 12 59622 0.0061 0.3344 -0.08596 2022 2 13 59623 0.0056 0.3363 -0.08580 2022 2 14 59624 0.0051 0.3381 -0.08560 2022 2 15 59625 0.0047 0.3400 -0.08550 2022 2 16 59626 0.0043 0.3418 -0.08560 2022 2 17 59627 0.0039 0.3437 -0.08591 2022 2 18 59628 0.0036 0.3456 -0.08643 2022 2 19 59629 0.0033 0.3474 -0.08713 2022 2 20 59630 0.0031 0.3493 -0.08795 2022 2 21 59631 0.0029 0.3512 -0.08881 2022 2 22 59632 0.0027 0.3531 -0.08958 2022 2 23 59633 0.0025 0.3550 -0.09011 2022 2 24 59634 0.0024 0.3569 -0.09039 2022 2 25 59635 0.0023 0.3588 -0.09044 2022 2 26 59636 0.0023 0.3607 -0.09035 2022 2 27 59637 0.0022 0.3626 -0.09020 2022 2 28 59638 0.0023 0.3645 -0.09013 2022 3 1 59639 0.0023 0.3664 -0.09025 2022 3 2 59640 0.0024 0.3683 -0.09068 2022 3 3 59641 0.0025 0.3702 -0.09136 2022 3 4 59642 0.0027 0.3721 -0.09217 2022 3 5 59643 0.0029 0.3740 -0.09298 2022 3 6 59644 0.0031 0.3759 -0.09374 2022 3 7 59645 0.0034 0.3778 -0.09445 2022 3 8 59646 0.0037 0.3797 -0.09509 2022 3 9 59647 0.0040 0.3816 -0.09563 2022 3 10 59648 0.0044 0.3835 -0.09602 2022 3 11 59649 0.0048 0.3854 -0.09631 2022 3 12 59650 0.0052 0.3873 -0.09655 2022 3 13 59651 0.0057 0.3891 -0.09676 2022 3 14 59652 0.0062 0.3910 -0.09702 2022 3 15 59653 0.0067 0.3928 -0.09738 2022 3 16 59654 0.0073 0.3947 -0.09792 2022 3 17 59655 0.0079 0.3965 -0.09866 2022 3 18 59656 0.0085 0.3984 -0.09959 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) 59269 -108.24 0.58 -7.47 0.05 59270 -108.21 0.58 -7.73 0.05 59271 -108.02 0.58 -7.81 0.05 59272 -107.60 0.47 -7.69 0.05 59273 -107.17 0.57 -7.45 0.06 59274 -107.05 0.57 -7.29 0.06 59275 -107.37 0.63 -7.32 0.06 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59269 0.226 0.232 -0.001 0.046 59270 0.210 0.232 -0.019 0.046 59271 0.197 0.232 -0.028 0.046 59272 0.191 0.187 -0.028 0.051 59273 0.191 0.225 -0.021 0.056 59274 0.196 0.225 -0.009 0.056 59275 0.203 0.249 0.006 0.060 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).