********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 8 July 2021 Vol. XXXIV No. 027 ______________________________________________________________________ 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 = -0.1 seconds beginning 17 July 2021 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 Dec 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 7 2 59397 0.20696 .00009 0.41814 .00009 -0.166710 0.000015 21 7 3 59398 0.20906 .00009 0.41696 .00009 -0.165982 0.000016 21 7 4 59399 0.21127 .00009 0.41588 .00009 -0.165172 0.000017 21 7 5 59400 0.21345 .00009 0.41495 .00009 -0.164192 0.000021 21 7 6 59401 0.21571 .00009 0.41405 .00009 -0.163029 0.000022 21 7 7 59402 0.21804 .00009 0.41312 .00009 -0.161778 0.000024 21 7 8 59403 0.22023 .00009 0.41215 .00009 -0.160456 0.000027 IERS Final Values MJD x y UT1-UTC " " s 21 5 2 59336 0.1082 0.4364 -0.18309 21 5 3 59337 0.1098 0.4374 -0.18279 21 5 4 59338 0.1116 0.4385 -0.18252 21 5 5 59339 0.1133 0.4394 -0.18240 21 5 6 59340 0.1153 0.4403 -0.18242 21 5 7 59341 0.1172 0.4415 -0.18257 21 5 8 59342 0.1187 0.4426 -0.18279 21 5 9 59343 0.1204 0.4434 -0.18303 21 5 10 59344 0.1220 0.4443 -0.18324 21 5 11 59345 0.1232 0.4450 -0.18337 21 5 12 59346 0.1246 0.4451 -0.18341 21 5 13 59347 0.1264 0.4449 -0.18332 21 5 14 59348 0.1284 0.4450 -0.18310 21 5 15 59349 0.1303 0.4454 -0.18280 21 5 16 59350 0.1325 0.4458 -0.18248 21 5 17 59351 0.1349 0.4464 -0.18226 21 5 18 59352 0.1371 0.4467 -0.18207 21 5 19 59353 0.1394 0.4465 -0.18198 21 5 20 59354 0.1421 0.4462 -0.18213 21 5 21 59355 0.1445 0.4461 -0.18251 21 5 22 59356 0.1466 0.4461 -0.18306 21 5 23 59357 0.1484 0.4463 -0.18374 21 5 24 59358 0.1501 0.4460 -0.18444 21 5 25 59359 0.1517 0.4456 -0.18504 21 5 26 59360 0.1532 0.4450 -0.18542 21 5 27 59361 0.1546 0.4446 -0.18554 21 5 28 59362 0.1561 0.4441 -0.18541 21 5 29 59363 0.1578 0.4433 -0.18506 21 5 30 59364 0.1595 0.4432 -0.18462 21 5 31 59365 0.1608 0.4431 -0.18420 21 6 1 59366 0.1622 0.4425 -0.18388 _______________________________________________________________________ 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 = 0.1384 + 0.0800 cos A + 0.0915 sin A + 0.0044 cos C - 0.0413 sin C y = 0.3625 + 0.0901 cos A - 0.0683 sin A - 0.0413 cos C - 0.0044 sin C UT1-UTC = -0.1552 + 0.00025 (MJD - 59411) - (UT2-UT1) where A = 2*pi*(MJD-59403)/365.25 and C = 2*pi*(MJD-59403)/435. TAI-UTC(MJD 59404) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59403)**0.80 S t = 0.00025 (MJD-59403)**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 7 9 59404 0.2221 0.4111 -0.15906 2021 7 10 59405 0.2236 0.4101 -0.15763 2021 7 11 59406 0.2251 0.4090 -0.15628 2021 7 12 59407 0.2264 0.4077 -0.15509 2021 7 13 59408 0.2276 0.4065 -0.15411 2021 7 14 59409 0.2287 0.4051 -0.15337 2021 7 15 59410 0.2299 0.4038 -0.15287 2021 7 16 59411 0.2310 0.4025 -0.15256 2021 7 17 59412 0.2320 0.4011 -0.15234 2021 7 18 59413 0.2329 0.3998 -0.15207 2021 7 19 59414 0.2338 0.3984 -0.15165 2021 7 20 59415 0.2347 0.3971 -0.15098 2021 7 21 59416 0.2355 0.3957 -0.15004 2021 7 22 59417 0.2362 0.3943 -0.14887 2021 7 23 59418 0.2369 0.3929 -0.14757 2021 7 24 59419 0.2375 0.3915 -0.14628 2021 7 25 59420 0.2381 0.3901 -0.14508 2021 7 26 59421 0.2386 0.3886 -0.14403 2021 7 27 59422 0.2391 0.3872 -0.14314 2021 7 28 59423 0.2396 0.3857 -0.14240 2021 7 29 59424 0.2401 0.3842 -0.14173 2021 7 30 59425 0.2406 0.3826 -0.14106 2021 7 31 59426 0.2411 0.3811 -0.14034 2021 8 1 59427 0.2415 0.3796 -0.13953 2021 8 2 59428 0.2420 0.3780 -0.13858 2021 8 3 59429 0.2424 0.3764 -0.13751 2021 8 4 59430 0.2428 0.3749 -0.13631 2021 8 5 59431 0.2432 0.3733 -0.13503 2021 8 6 59432 0.2436 0.3717 -0.13373 2021 8 7 59433 0.2439 0.3701 -0.13248 2021 8 8 59434 0.2442 0.3685 -0.13134 2021 8 9 59435 0.2445 0.3669 -0.13040 2021 8 10 59436 0.2447 0.3653 -0.12970 2021 8 11 59437 0.2450 0.3636 -0.12926 2021 8 12 59438 0.2452 0.3620 -0.12902 2021 8 13 59439 0.2454 0.3603 -0.12891 2021 8 14 59440 0.2456 0.3586 -0.12881 2021 8 15 59441 0.2457 0.3570 -0.12862 2021 8 16 59442 0.2458 0.3553 -0.12825 2021 8 17 59443 0.2459 0.3536 -0.12767 2021 8 18 59444 0.2459 0.3519 -0.12691 2021 8 19 59445 0.2460 0.3502 -0.12603 2021 8 20 59446 0.2460 0.3485 -0.12514 2021 8 21 59447 0.2459 0.3469 -0.12435 2021 8 22 59448 0.2458 0.3452 -0.12371 2021 8 23 59449 0.2457 0.3435 -0.12326 2021 8 24 59450 0.2456 0.3418 -0.12297 2021 8 25 59451 0.2454 0.3401 -0.12277 2021 8 26 59452 0.2452 0.3384 -0.12260 2021 8 27 59453 0.2450 0.3367 -0.12236 2021 8 28 59454 0.2447 0.3350 -0.12202 2021 8 29 59455 0.2444 0.3333 -0.12155 2021 8 30 59456 0.2441 0.3316 -0.12092 2021 8 31 59457 0.2437 0.3300 -0.12016 2021 9 1 59458 0.2433 0.3283 -0.11929 2021 9 2 59459 0.2429 0.3266 -0.11837 2021 9 3 59460 0.2424 0.3249 -0.11746 2021 9 4 59461 0.2419 0.3233 -0.11665 2021 9 5 59462 0.2414 0.3216 -0.11600 2021 9 6 59463 0.2409 0.3200 -0.11559 2021 9 7 59464 0.2403 0.3183 -0.11544 2021 9 8 59465 0.2397 0.3167 -0.11552 2021 9 9 59466 0.2390 0.3151 -0.11574 2021 9 10 59467 0.2384 0.3135 -0.11600 2021 9 11 59468 0.2377 0.3118 -0.11615 2021 9 12 59469 0.2369 0.3102 -0.11610 2021 9 13 59470 0.2362 0.3086 -0.11582 2021 9 14 59471 0.2354 0.3070 -0.11532 2021 9 15 59472 0.2346 0.3055 -0.11467 2021 9 16 59473 0.2337 0.3039 -0.11400 2021 9 17 59474 0.2329 0.3023 -0.11340 2021 9 18 59475 0.2319 0.3008 -0.11295 2021 9 19 59476 0.2310 0.2993 -0.11270 2021 9 20 59477 0.2301 0.2977 -0.11262 2021 9 21 59478 0.2291 0.2962 -0.11268 2021 9 22 59479 0.2281 0.2947 -0.11279 2021 9 23 59480 0.2270 0.2933 -0.11287 2021 9 24 59481 0.2259 0.2918 -0.11287 2021 9 25 59482 0.2248 0.2903 -0.11272 2021 9 26 59483 0.2237 0.2889 -0.11240 2021 9 27 59484 0.2226 0.2875 -0.11194 2021 9 28 59485 0.2214 0.2861 -0.11135 2021 9 29 59486 0.2202 0.2847 -0.11069 2021 9 30 59487 0.2190 0.2833 -0.11003 2021 10 1 59488 0.2177 0.2819 -0.10945 2021 10 2 59489 0.2164 0.2806 -0.10901 2021 10 3 59490 0.2151 0.2793 -0.10880 2021 10 4 59491 0.2138 0.2780 -0.10885 2021 10 5 59492 0.2124 0.2767 -0.10918 2021 10 6 59493 0.2110 0.2754 -0.10973 2021 10 7 59494 0.2096 0.2741 -0.11039 2021 10 8 59495 0.2082 0.2729 -0.11100 2021 10 9 59496 0.2068 0.2717 -0.11144 2021 10 10 59497 0.2053 0.2705 -0.11162 2021 10 11 59498 0.2038 0.2693 -0.11154 2021 10 12 59499 0.2023 0.2682 -0.11128 2021 10 13 59500 0.2008 0.2671 -0.11095 2021 10 14 59501 0.1992 0.2660 -0.11065 2021 10 15 59502 0.1976 0.2649 -0.11048 2021 10 16 59503 0.1960 0.2638 -0.11048 2021 10 17 59504 0.1944 0.2628 -0.11066 2021 10 18 59505 0.1928 0.2618 -0.11097 2021 10 19 59506 0.1911 0.2608 -0.11135 2021 10 20 59507 0.1894 0.2598 -0.11173 2021 10 21 59508 0.1878 0.2589 -0.11204 2021 10 22 59509 0.1860 0.2580 -0.11222 2021 10 23 59510 0.1843 0.2571 -0.11223 2021 10 24 59511 0.1826 0.2562 -0.11208 2021 10 25 59512 0.1808 0.2554 -0.11184 2021 10 26 59513 0.1790 0.2545 -0.11149 2021 10 27 59514 0.1772 0.2537 -0.11110 2021 10 28 59515 0.1754 0.2530 -0.11074 2021 10 29 59516 0.1736 0.2522 -0.11047 2021 10 30 59517 0.1718 0.2515 -0.11037 2021 10 31 59518 0.1699 0.2508 -0.11049 2021 11 1 59519 0.1681 0.2502 -0.11088 2021 11 2 59520 0.1662 0.2496 -0.11151 2021 11 3 59521 0.1643 0.2490 -0.11230 2021 11 4 59522 0.1624 0.2484 -0.11312 2021 11 5 59523 0.1605 0.2478 -0.11383 2021 11 6 59524 0.1586 0.2473 -0.11429 2021 11 7 59525 0.1566 0.2468 -0.11448 2021 11 8 59526 0.1547 0.2464 -0.11442 2021 11 9 59527 0.1528 0.2459 -0.11423 2021 11 10 59528 0.1508 0.2455 -0.11403 2021 11 11 59529 0.1488 0.2451 -0.11393 2021 11 12 59530 0.1469 0.2448 -0.11399 2021 11 13 59531 0.1449 0.2445 -0.11420 2021 11 14 59532 0.1429 0.2442 -0.11455 2021 11 15 59533 0.1409 0.2439 -0.11496 2021 11 16 59534 0.1389 0.2437 -0.11538 2021 11 17 59535 0.1369 0.2435 -0.11573 2021 11 18 59536 0.1349 0.2433 -0.11596 2021 11 19 59537 0.1329 0.2432 -0.11603 2021 11 20 59538 0.1309 0.2431 -0.11592 2021 11 21 59539 0.1289 0.2430 -0.11564 2021 11 22 59540 0.1269 0.2430 -0.11523 2021 11 23 59541 0.1248 0.2429 -0.11475 2021 11 24 59542 0.1228 0.2430 -0.11425 2021 11 25 59543 0.1208 0.2430 -0.11382 2021 11 26 59544 0.1188 0.2431 -0.11351 2021 11 27 59545 0.1168 0.2432 -0.11339 2021 11 28 59546 0.1147 0.2433 -0.11350 2021 11 29 59547 0.1127 0.2435 -0.11384 2021 11 30 59548 0.1107 0.2437 -0.11436 2021 12 1 59549 0.1087 0.2439 -0.11497 2021 12 2 59550 0.1067 0.2442 -0.11555 2021 12 3 59551 0.1047 0.2444 -0.11594 2021 12 4 59552 0.1027 0.2448 -0.11608 2021 12 5 59553 0.1007 0.2451 -0.11595 2021 12 6 59554 0.0987 0.2455 -0.11563 2021 12 7 59555 0.0967 0.2459 -0.11525 2021 12 8 59556 0.0947 0.2463 -0.11494 2021 12 9 59557 0.0928 0.2468 -0.11477 2021 12 10 59558 0.0908 0.2473 -0.11477 2021 12 11 59559 0.0889 0.2478 -0.11491 2021 12 12 59560 0.0869 0.2484 -0.11511 2021 12 13 59561 0.0850 0.2490 -0.11532 2021 12 14 59562 0.0831 0.2496 -0.11546 2021 12 15 59563 0.0811 0.2502 -0.11548 2021 12 16 59564 0.0792 0.2509 -0.11535 2021 12 17 59565 0.0774 0.2516 -0.11504 2021 12 18 59566 0.0755 0.2523 -0.11456 2021 12 19 59567 0.0736 0.2531 -0.11393 2021 12 20 59568 0.0718 0.2539 -0.11322 2021 12 21 59569 0.0699 0.2547 -0.11247 2021 12 22 59570 0.0681 0.2556 -0.11177 2021 12 23 59571 0.0663 0.2564 -0.11118 2021 12 24 59572 0.0645 0.2573 -0.11075 2021 12 25 59573 0.0627 0.2583 -0.11053 2021 12 26 59574 0.0609 0.2592 -0.11051 2021 12 27 59575 0.0592 0.2602 -0.11067 2021 12 28 59576 0.0575 0.2612 -0.11095 2021 12 29 59577 0.0558 0.2623 -0.11125 2021 12 30 59578 0.0541 0.2633 -0.11143 2021 12 31 59579 0.0524 0.2644 -0.11141 2022 1 1 59580 0.0507 0.2656 -0.11114 2022 1 2 59581 0.0491 0.2667 -0.11066 2022 1 3 59582 0.0475 0.2679 -0.11008 2022 1 4 59583 0.0459 0.2691 -0.10953 2022 1 5 59584 0.0443 0.2703 -0.10912 2022 1 6 59585 0.0428 0.2715 -0.10889 2022 1 7 59586 0.0412 0.2728 -0.10882 2022 1 8 59587 0.0397 0.2741 -0.10884 2022 1 9 59588 0.0382 0.2754 -0.10888 2022 1 10 59589 0.0368 0.2768 -0.10884 2022 1 11 59590 0.0353 0.2781 -0.10868 2022 1 12 59591 0.0339 0.2795 -0.10835 2022 1 13 59592 0.0325 0.2809 -0.10785 2022 1 14 59593 0.0311 0.2823 -0.10718 2022 1 15 59594 0.0298 0.2838 -0.10639 2022 1 16 59595 0.0285 0.2853 -0.10553 2022 1 17 59596 0.0272 0.2868 -0.10467 2022 1 18 59597 0.0259 0.2883 -0.10387 2022 1 19 59598 0.0247 0.2898 -0.10319 2022 1 20 59599 0.0235 0.2914 -0.10267 2022 1 21 59600 0.0223 0.2929 -0.10235 2022 1 22 59601 0.0211 0.2945 -0.10223 2022 1 23 59602 0.0200 0.2961 -0.10226 2022 1 24 59603 0.0189 0.2978 -0.10240 2022 1 25 59604 0.0179 0.2994 -0.10256 2022 1 26 59605 0.0168 0.3011 -0.10266 2022 1 27 59606 0.0158 0.3028 -0.10261 2022 1 28 59607 0.0148 0.3045 -0.10236 2022 1 29 59608 0.0139 0.3062 -0.10192 2022 1 30 59609 0.0129 0.3079 -0.10137 2022 1 31 59610 0.0120 0.3096 -0.10085 2022 2 1 59611 0.0112 0.3114 -0.10047 2022 2 2 59612 0.0104 0.3132 -0.10032 2022 2 3 59613 0.0096 0.3150 -0.10042 2022 2 4 59614 0.0088 0.3168 -0.10069 2022 2 5 59615 0.0081 0.3186 -0.10106 2022 2 6 59616 0.0073 0.3204 -0.10142 2022 2 7 59617 0.0067 0.3222 -0.10169 2022 2 8 59618 0.0060 0.3241 -0.10182 2022 2 9 59619 0.0054 0.3259 -0.10177 2022 2 10 59620 0.0049 0.3278 -0.10151 2022 2 11 59621 0.0043 0.3297 -0.10107 2022 2 12 59622 0.0038 0.3316 -0.10050 2022 2 13 59623 0.0033 0.3335 -0.09987 2022 2 14 59624 0.0029 0.3354 -0.09927 2022 2 15 59625 0.0025 0.3373 -0.09879 2022 2 16 59626 0.0021 0.3392 -0.09849 2022 2 17 59627 0.0018 0.3411 -0.09839 2022 2 18 59628 0.0015 0.3431 -0.09855 2022 2 19 59629 0.0012 0.3450 -0.09898 2022 2 20 59630 0.0009 0.3469 -0.09957 2022 2 21 59631 0.0007 0.3489 -0.10024 2022 2 22 59632 0.0006 0.3508 -0.10088 2022 2 23 59633 0.0004 0.3528 -0.10137 2022 2 24 59634 0.0003 0.3548 -0.10166 2022 2 25 59635 0.0003 0.3567 -0.10169 2022 2 26 59636 0.0002 0.3587 -0.10155 2022 2 27 59637 0.0002 0.3607 -0.10136 2022 2 28 59638 0.0003 0.3626 -0.10129 2022 3 1 59639 0.0003 0.3646 -0.10141 2022 3 2 59640 0.0004 0.3666 -0.10172 2022 3 3 59641 0.0006 0.3685 -0.10221 2022 3 4 59642 0.0007 0.3705 -0.10285 2022 3 5 59643 0.0010 0.3725 -0.10346 2022 3 6 59644 0.0012 0.3744 -0.10412 2022 3 7 59645 0.0015 0.3764 -0.10463 2022 3 8 59646 0.0018 0.3783 -0.10494 2022 3 9 59647 0.0021 0.3803 -0.10502 2022 3 10 59648 0.0025 0.3822 -0.10485 2022 3 11 59649 0.0029 0.3842 -0.10452 2022 3 12 59650 0.0034 0.3861 -0.10414 2022 3 13 59651 0.0039 0.3881 -0.10378 2022 3 14 59652 0.0044 0.3900 -0.10355 2022 3 15 59653 0.0049 0.3919 -0.10346 2022 3 16 59654 0.0055 0.3938 -0.10357 2022 3 17 59655 0.0061 0.3957 -0.10394 2022 3 18 59656 0.0068 0.3976 -0.10453 2022 3 19 59657 0.0074 0.3995 -0.10533 2022 3 20 59658 0.0082 0.4014 -0.10620 2022 3 21 59659 0.0089 0.4033 -0.10704 2022 3 22 59660 0.0097 0.4051 -0.10777 2022 3 23 59661 0.0105 0.4070 -0.10822 2022 3 24 59662 0.0113 0.4088 -0.10836 2022 3 25 59663 0.0122 0.4106 -0.10832 2022 3 26 59664 0.0131 0.4124 -0.10825 2022 3 27 59665 0.0141 0.4142 -0.10829 2022 3 28 59666 0.0150 0.4160 -0.10850 2022 3 29 59667 0.0160 0.4178 -0.10889 2022 3 30 59668 0.0171 0.4196 -0.10948 2022 3 31 59669 0.0181 0.4213 -0.11020 2022 4 1 59670 0.0192 0.4230 -0.11094 2022 4 2 59671 0.0204 0.4247 -0.11165 2022 4 3 59672 0.0215 0.4264 -0.11229 2022 4 4 59673 0.0227 0.4281 -0.11281 2022 4 5 59674 0.0239 0.4298 -0.11314 2022 4 6 59675 0.0251 0.4314 -0.11332 2022 4 7 59676 0.0264 0.4330 -0.11339 2022 4 8 59677 0.0277 0.4347 -0.11341 2022 4 9 59678 0.0290 0.4362 -0.11337 2022 4 10 59679 0.0304 0.4378 -0.11326 2022 4 11 59680 0.0318 0.4394 -0.11320 2022 4 12 59681 0.0332 0.4409 -0.11325 2022 4 13 59682 0.0346 0.4424 -0.11350 2022 4 14 59683 0.0360 0.4439 -0.11399 2022 4 15 59684 0.0375 0.4454 -0.11461 2022 4 16 59685 0.0390 0.4468 -0.11529 2022 4 17 59686 0.0406 0.4482 -0.11590 2022 4 18 59687 0.0421 0.4496 -0.11641 2022 4 19 59688 0.0437 0.4510 -0.11663 2022 4 20 59689 0.0453 0.4524 -0.11656 2022 4 21 59690 0.0469 0.4537 -0.11630 2022 4 22 59691 0.0486 0.4550 -0.11589 2022 4 23 59692 0.0502 0.4563 -0.11542 2022 4 24 59693 0.0519 0.4575 -0.11512 2022 4 25 59694 0.0536 0.4588 -0.11501 2022 4 26 59695 0.0554 0.4600 -0.11509 2022 4 27 59696 0.0571 0.4612 -0.11533 2022 4 28 59697 0.0589 0.4623 -0.11560 2022 4 29 59698 0.0607 0.4634 -0.11579 2022 4 30 59699 0.0625 0.4645 -0.11585 2022 5 1 59700 0.0643 0.4656 -0.11578 2022 5 2 59701 0.0662 0.4667 -0.11553 2022 5 3 59702 0.0681 0.4677 -0.11510 2022 5 4 59703 0.0699 0.4687 -0.11449 2022 5 5 59704 0.0718 0.4696 -0.11389 2022 5 6 59705 0.0738 0.4706 -0.11335 2022 5 7 59706 0.0757 0.4715 -0.11281 2022 5 8 59707 0.0776 0.4724 -0.11232 2022 5 9 59708 0.0796 0.4732 -0.11193 2022 5 10 59709 0.0816 0.4740 -0.11169 2022 5 11 59710 0.0835 0.4748 -0.11162 2022 5 12 59711 0.0855 0.4756 -0.11177 2022 5 13 59712 0.0876 0.4763 -0.11206 2022 5 14 59713 0.0896 0.4770 -0.11241 2022 5 15 59714 0.0916 0.4777 -0.11274 2022 5 16 59715 0.0936 0.4783 -0.11288 2022 5 17 59716 0.0957 0.4789 -0.11278 2022 5 18 59717 0.0978 0.4795 -0.11239 2022 5 19 59718 0.0998 0.4800 -0.11177 2022 5 20 59719 0.1019 0.4805 -0.11110 2022 5 21 59720 0.1040 0.4810 -0.11047 2022 5 22 59721 0.1061 0.4815 -0.10990 2022 5 23 59722 0.1082 0.4819 -0.10951 2022 5 24 59723 0.1103 0.4823 -0.10925 2022 5 25 59724 0.1124 0.4826 -0.10906 2022 5 26 59725 0.1145 0.4830 -0.10881 2022 5 27 59726 0.1167 0.4832 -0.10849 2022 5 28 59727 0.1188 0.4835 -0.10800 2022 5 29 59728 0.1209 0.4837 -0.10727 2022 5 30 59729 0.1230 0.4839 -0.10631 2022 5 31 59730 0.1252 0.4841 -0.10518 2022 6 1 59731 0.1273 0.4842 -0.10384 2022 6 2 59732 0.1294 0.4843 -0.10241 2022 6 3 59733 0.1316 0.4844 -0.10103 2022 6 4 59734 0.1337 0.4844 -0.09978 2022 6 5 59735 0.1358 0.4844 -0.09868 2022 6 6 59736 0.1380 0.4844 -0.09782 2022 6 7 59737 0.1401 0.4843 -0.09720 2022 6 8 59738 0.1422 0.4842 -0.09678 2022 6 9 59739 0.1444 0.4841 -0.09652 2022 6 10 59740 0.1465 0.4839 -0.09633 2022 6 11 59741 0.1486 0.4837 -0.09610 2022 6 12 59742 0.1507 0.4835 -0.09568 2022 6 13 59743 0.1528 0.4832 -0.09511 2022 6 14 59744 0.1549 0.4829 -0.09431 2022 6 15 59745 0.1570 0.4826 -0.09327 2022 6 16 59746 0.1591 0.4822 -0.09218 2022 6 17 59747 0.1612 0.4819 -0.09124 2022 6 18 59748 0.1632 0.4814 -0.09051 2022 6 19 59749 0.1653 0.4810 -0.08998 2022 6 20 59750 0.1673 0.4805 -0.08969 2022 6 21 59751 0.1694 0.4800 -0.08954 2022 6 22 59752 0.1714 0.4794 -0.08946 2022 6 23 59753 0.1734 0.4789 -0.08935 2022 6 24 59754 0.1754 0.4783 -0.08907 2022 6 25 59755 0.1774 0.4776 -0.08860 2022 6 26 59756 0.1794 0.4769 -0.08791 2022 6 27 59757 0.1814 0.4762 -0.08699 2022 6 28 59758 0.1833 0.4755 -0.08593 2022 6 29 59759 0.1853 0.4748 -0.08472 2022 6 30 59760 0.1872 0.4740 -0.08341 2022 7 1 59761 0.1891 0.4731 -0.08210 2022 7 2 59762 0.1910 0.4723 -0.08080 2022 7 3 59763 0.1928 0.4714 -0.07957 2022 7 4 59764 0.1947 0.4705 -0.07847 2022 7 5 59765 0.1965 0.4696 -0.07749 2022 7 6 59766 0.1984 0.4686 -0.07668 2022 7 7 59767 0.2002 0.4676 -0.07603 2022 7 8 59768 0.2020 0.4666 -0.07542 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) 59384 -109.17 0.50 -9.92 0.23 59385 -109.69 0.51 -9.71 0.22 59386 -110.45 0.51 -9.46 0.22 59387 -111.24 0.58 -9.34 0.13 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 59336 -105.4 -9.9 59337 -105.4 -10.1 59338 -105.7 -10.2 59339 -105.8 -10.1 59340 -105.7 -10.0 59341 -105.5 -9.9 59342 -105.5 -9.6 59343 -105.8 -9.3 59344 -106.1 -9.2 59345 -106.2 -9.3 59346 -106.1 -9.6 59347 -106.0 -9.9 59348 -105.9 -10.1 59349 -106.0 -10.2 59350 -106.2 -10.3 59351 -106.3 -10.4 59352 -106.2 -10.4 59353 -105.9 -10.3 59354 -105.6 -10.3 59355 -105.6 -10.4 59356 -105.8 -10.5 59357 -106.1 -10.3 59358 -106.7 -9.9 59359 -107.6 -9.6 59360 -108.3 -9.6 59361 -108.4 -9.7 59362 -108.0 -9.9 59363 -107.3 -10.0 59364 -106.9 -10.3 59365 -106.7 -10.5 59366 -106.9 -10.6 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59384 0.207 0.200 -0.217 0.231 59385 0.202 0.204 -0.217 0.217 59386 0.200 0.204 -0.212 0.217 59387 0.200 0.233 -0.203 0.127 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 59336 0.28 0.04 59337 0.24 0.02 59338 0.20 -0.01 59339 0.18 -0.03 59340 0.17 -0.06 59341 0.16 -0.09 59342 0.17 -0.10 59343 0.17 -0.10 59344 0.18 -0.10 59345 0.18 -0.09 59346 0.20 -0.09 59347 0.21 -0.09 59348 0.23 -0.08 59349 0.23 -0.08 59350 0.22 -0.08 59351 0.21 -0.08 59352 0.20 -0.07 59353 0.20 -0.07 59354 0.23 -0.13 59355 0.27 -0.20 59356 0.25 -0.21 59357 0.22 -0.18 59358 0.19 -0.16 59359 0.16 -0.14 59360 0.12 -0.11 59361 0.15 -0.13 59362 0.20 -0.16 59363 0.21 -0.17 59364 0.21 -0.17 59365 0.22 -0.17 59366 0.22 -0.17 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).