********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 19 December 2019 Vol. XXXII No. 051 ______________________________________________________________________ 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 *********************************************************************** * * * Notice of Publication Web and FTP Shutdown: * * The US Naval Observatory's Rapid Service/Prediction Center web and * * FTP sites (at maia.usno.navy.mil and toshi.nofs.navy.mil) must * * undergo modernization and have been offline since 24 October 2019. * * The expected completion of work and return of service is estimated * * as 30 April 2020. Please visit https://www.usno.navy.mil and submit * * a Requirements Form to the USNO Public Affairs Official (PAO) if * * the information you are seeking is not accessible via another * * means. If the Requirements Form is not available, please directly * * contact the USNO PAO Geoff Chester at email address * * geoff.chester@navy.mil or phone number 202 762 1438. * * * * This shutdown has lead to the indefinite cessation of IERS * * Bulletin A distribution emails. If this occurs, current * * subscribers to the Bulletin A email distribution list may receive * * future mailings from a different address (if this service is * * restored). In the meantime, we will be unable to process email * * subscription/unsubscription requests. * * * * Currently, updated EOPs may be available at NASA's Archive of * * Space Geodesy Data anonymous FTP server at: * * ftp://cddis.gsfc.nasa.gov/pub/products/iers * * Daily EOP data may be uploaded here by 18:00 UTC, and * * Bulletin A EOP data may be available by 20:00 UTC. * * Users should please verify results obtained from this site; * * we cannot guarantee the integrity or timeliness of files provided * * at this mirror site. * * * * For other download options from CDDIS, such as HTTPS, please refer * * to the https://cddis.nasa.gov/About/CDDIS_File_Download_FAQ.html * * * * 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 19 12 13 58830 0.10479 .00009 0.27203 .00009 -0.172447 0.000009 19 12 14 58831 0.10428 .00009 0.27310 .00009 -0.172268 0.000015 19 12 15 58832 0.10319 .00009 0.27406 .00009 -0.172100 0.000015 19 12 16 58833 0.10147 .00009 0.27468 .00009 -0.172004 0.000019 19 12 17 58834 0.09946 .00009 0.27502 .00009 -0.172046 0.000020 19 12 18 58835 0.09754 .00009 0.27531 .00009 -0.172269 0.000020 19 12 19 58836 0.09588 .00009 0.27568 .00009 -0.172732 0.000020 _______________________________________________________________________ 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 = 0.1310 - 0.0295 cos A - 0.1084 sin A - 0.0033 cos C + 0.0247 sin C y = 0.3504 - 0.0974 cos A + 0.0291 sin A + 0.0247 cos C + 0.0033 sin C UT1-UTC = -0.1593 - 0.00035 (MJD - 58844) - (UT2-UT1) where A = 2*pi*(MJD-58836)/365.25 and C = 2*pi*(MJD-58836)/435. TAI-UTC(MJD 58837) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58836)**0.80 S t = 0.00025 (MJD-58836)**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) 2019 12 20 58837 0.0944 0.2761 -0.17338 2019 12 21 58838 0.0931 0.2767 -0.17411 2019 12 22 58839 0.0918 0.2774 -0.17479 2019 12 23 58840 0.0905 0.2782 -0.17537 2019 12 24 58841 0.0891 0.2789 -0.17580 2019 12 25 58842 0.0876 0.2796 -0.17605 2019 12 26 58843 0.0862 0.2803 -0.17613 2019 12 27 58844 0.0847 0.2810 -0.17612 2019 12 28 58845 0.0833 0.2817 -0.17607 2019 12 29 58846 0.0819 0.2823 -0.17605 2019 12 30 58847 0.0805 0.2831 -0.17607 2019 12 31 58848 0.0792 0.2839 -0.17613 2020 1 1 58849 0.0778 0.2848 -0.17623 2020 1 2 58850 0.0764 0.2857 -0.17638 2020 1 3 58851 0.0749 0.2866 -0.17657 2020 1 4 58852 0.0735 0.2875 -0.17678 2020 1 5 58853 0.0722 0.2884 -0.17697 2020 1 6 58854 0.0709 0.2892 -0.17711 2020 1 7 58855 0.0696 0.2901 -0.17718 2020 1 8 58856 0.0684 0.2910 -0.17714 2020 1 9 58857 0.0671 0.2920 -0.17700 2020 1 10 58858 0.0659 0.2930 -0.17681 2020 1 11 58859 0.0647 0.2941 -0.17662 2020 1 12 58860 0.0635 0.2951 -0.17652 2020 1 13 58861 0.0623 0.2962 -0.17658 2020 1 14 58862 0.0611 0.2972 -0.17686 2020 1 15 58863 0.0600 0.2983 -0.17733 2020 1 16 58864 0.0589 0.2994 -0.17792 2020 1 17 58865 0.0578 0.3005 -0.17856 2020 1 18 58866 0.0568 0.3016 -0.17914 2020 1 19 58867 0.0557 0.3028 -0.17959 2020 1 20 58868 0.0547 0.3040 -0.17985 2020 1 21 58869 0.0537 0.3052 -0.17992 2020 1 22 58870 0.0527 0.3064 -0.17982 2020 1 23 58871 0.0518 0.3076 -0.17961 2020 1 24 58872 0.0508 0.3089 -0.17936 2020 1 25 58873 0.0499 0.3101 -0.17913 2020 1 26 58874 0.0491 0.3114 -0.17896 2020 1 27 58875 0.0482 0.3127 -0.17890 2020 1 28 58876 0.0474 0.3140 -0.17894 2020 1 29 58877 0.0466 0.3154 -0.17909 2020 1 30 58878 0.0458 0.3167 -0.17931 2020 1 31 58879 0.0451 0.3180 -0.17959 2020 2 1 58880 0.0443 0.3194 -0.17986 2020 2 2 58881 0.0436 0.3208 -0.18009 2020 2 3 58882 0.0430 0.3222 -0.18025 2020 2 4 58883 0.0423 0.3236 -0.18030 2020 2 5 58884 0.0417 0.3250 -0.18023 2020 2 6 58885 0.0411 0.3264 -0.18009 2020 2 7 58886 0.0405 0.3279 -0.17991 2020 2 8 58887 0.0400 0.3293 -0.17980 2020 2 9 58888 0.0395 0.3308 -0.17984 2020 2 10 58889 0.0390 0.3322 -0.18012 2020 2 11 58890 0.0385 0.3337 -0.18065 2020 2 12 58891 0.0381 0.3352 -0.18137 2020 2 13 58892 0.0377 0.3367 -0.18216 2020 2 14 58893 0.0373 0.3382 -0.18291 2020 2 15 58894 0.0370 0.3397 -0.18350 2020 2 16 58895 0.0367 0.3412 -0.18388 2020 2 17 58896 0.0364 0.3427 -0.18405 2020 2 18 58897 0.0361 0.3442 -0.18405 2020 2 19 58898 0.0359 0.3457 -0.18394 2020 2 20 58899 0.0357 0.3473 -0.18378 2020 2 21 58900 0.0355 0.3488 -0.18366 2020 2 22 58901 0.0353 0.3504 -0.18362 2020 2 23 58902 0.0352 0.3519 -0.18371 2020 2 24 58903 0.0351 0.3534 -0.18392 2020 2 25 58904 0.0351 0.3550 -0.18426 2020 2 26 58905 0.0351 0.3565 -0.18471 2020 2 27 58906 0.0351 0.3581 -0.18522 2020 2 28 58907 0.0351 0.3597 -0.18575 2020 2 29 58908 0.0352 0.3612 -0.18626 2020 3 1 58909 0.0352 0.3628 -0.18670 2020 3 2 58910 0.0354 0.3643 -0.18706 2020 3 3 58911 0.0355 0.3659 -0.18733 2020 3 4 58912 0.0357 0.3674 -0.18753 2020 3 5 58913 0.0359 0.3690 -0.18770 2020 3 6 58914 0.0361 0.3705 -0.18792 2020 3 7 58915 0.0364 0.3721 -0.18827 2020 3 8 58916 0.0367 0.3736 -0.18887 2020 3 9 58917 0.0370 0.3751 -0.18975 2020 3 10 58918 0.0374 0.3767 -0.19090 2020 3 11 58919 0.0378 0.3782 -0.19221 2020 3 12 58920 0.0382 0.3797 -0.19355 2020 3 13 58921 0.0386 0.3812 -0.19477 2020 3 14 58922 0.0391 0.3827 -0.19579 2020 3 15 58923 0.0396 0.3842 -0.19655 2020 3 16 58924 0.0401 0.3857 -0.19710 2020 3 17 58925 0.0407 0.3872 -0.19750 2020 3 18 58926 0.0413 0.3887 -0.19782 2020 3 19 58927 0.0419 0.3902 -0.19813 2020 3 20 58928 0.0425 0.3917 -0.19850 2020 3 21 58929 0.0432 0.3931 -0.19897 2020 3 22 58930 0.0439 0.3945 -0.19956 2020 3 23 58931 0.0446 0.3960 -0.20026 2020 3 24 58932 0.0454 0.3974 -0.20107 2020 3 25 58933 0.0462 0.3988 -0.20193 2020 3 26 58934 0.0470 0.4002 -0.20283 2020 3 27 58935 0.0478 0.4016 -0.20369 2020 3 28 58936 0.0487 0.4030 -0.20449 2020 3 29 58937 0.0496 0.4043 -0.20518 2020 3 30 58938 0.0505 0.4057 -0.20578 2020 3 31 58939 0.0514 0.4070 -0.20628 2020 4 1 58940 0.0524 0.4084 -0.20672 2020 4 2 58941 0.0534 0.4097 -0.20716 2020 4 3 58942 0.0544 0.4110 -0.20769 2020 4 4 58943 0.0554 0.4122 -0.20840 2020 4 5 58944 0.0565 0.4135 -0.20937 2020 4 6 58945 0.0576 0.4147 -0.21052 2020 4 7 58946 0.0587 0.4160 -0.21188 2020 4 8 58947 0.0598 0.4172 -0.21335 2020 4 9 58948 0.0610 0.4184 -0.21477 2020 4 10 58949 0.0622 0.4195 -0.21601 2020 4 11 58950 0.0634 0.4207 -0.21699 2020 4 12 58951 0.0646 0.4218 -0.21771 2020 4 13 58952 0.0659 0.4230 -0.21821 2020 4 14 58953 0.0671 0.4241 -0.21858 2020 4 15 58954 0.0684 0.4251 -0.21890 2020 4 16 58955 0.0697 0.4262 -0.21926 2020 4 17 58956 0.0711 0.4272 -0.21968 2020 4 18 58957 0.0724 0.4283 -0.22020 2020 4 19 58958 0.0738 0.4293 -0.22083 2020 4 20 58959 0.0752 0.4302 -0.22155 2020 4 21 58960 0.0766 0.4312 -0.22233 2020 4 22 58961 0.0780 0.4321 -0.22312 2020 4 23 58962 0.0795 0.4330 -0.22389 2020 4 24 58963 0.0810 0.4339 -0.22458 2020 4 25 58964 0.0824 0.4348 -0.22515 2020 4 26 58965 0.0839 0.4356 -0.22559 2020 4 27 58966 0.0855 0.4364 -0.22590 2020 4 28 58967 0.0870 0.4372 -0.22612 2020 4 29 58968 0.0885 0.4380 -0.22629 2020 4 30 58969 0.0901 0.4388 -0.22650 2020 5 1 58970 0.0917 0.4395 -0.22683 2020 5 2 58971 0.0933 0.4402 -0.22735 2020 5 3 58972 0.0949 0.4409 -0.22812 2020 5 4 58973 0.0965 0.4415 -0.22913 2020 5 5 58974 0.0981 0.4421 -0.23030 2020 5 6 58975 0.0998 0.4427 -0.23149 2020 5 7 58976 0.1014 0.4433 -0.23257 2020 5 8 58977 0.1031 0.4438 -0.23343 2020 5 9 58978 0.1048 0.4444 -0.23400 2020 5 10 58979 0.1065 0.4449 -0.23433 2020 5 11 58980 0.1082 0.4453 -0.23447 2020 5 12 58981 0.1099 0.4458 -0.23453 2020 5 13 58982 0.1116 0.4462 -0.23457 2020 5 14 58983 0.1133 0.4466 -0.23466 2020 5 15 58984 0.1151 0.4469 -0.23484 2020 5 16 58985 0.1168 0.4472 -0.23511 2020 5 17 58986 0.1186 0.4476 -0.23547 2020 5 18 58987 0.1203 0.4478 -0.23588 2020 5 19 58988 0.1221 0.4481 -0.23631 2020 5 20 58989 0.1239 0.4483 -0.23671 2020 5 21 58990 0.1256 0.4485 -0.23703 2020 5 22 58991 0.1274 0.4487 -0.23725 2020 5 23 58992 0.1292 0.4488 -0.23731 2020 5 24 58993 0.1310 0.4489 -0.23724 2020 5 25 58994 0.1327 0.4490 -0.23704 2020 5 26 58995 0.1345 0.4490 -0.23677 2020 5 27 58996 0.1363 0.4490 -0.23651 2020 5 28 58997 0.1381 0.4490 -0.23632 2020 5 29 58998 0.1399 0.4490 -0.23630 2020 5 30 58999 0.1417 0.4489 -0.23648 2020 5 31 59000 0.1435 0.4489 -0.23687 2020 6 1 59001 0.1453 0.4487 -0.23743 2020 6 2 59002 0.1471 0.4486 -0.23807 2020 6 3 59003 0.1489 0.4484 -0.23865 2020 6 4 59004 0.1506 0.4482 -0.23906 2020 6 5 59005 0.1524 0.4480 -0.23922 2020 6 6 59006 0.1542 0.4477 -0.23912 2020 6 7 59007 0.1560 0.4474 -0.23882 2020 6 8 59008 0.1577 0.4471 -0.23839 2020 6 9 59009 0.1595 0.4468 -0.23792 2020 6 10 59010 0.1613 0.4464 -0.23748 2020 6 11 59011 0.1630 0.4460 -0.23711 2020 6 12 59012 0.1647 0.4456 -0.23683 2020 6 13 59013 0.1665 0.4451 -0.23663 2020 6 14 59014 0.1682 0.4446 -0.23649 2020 6 15 59015 0.1699 0.4441 -0.23636 2020 6 16 59016 0.1716 0.4436 -0.23620 2020 6 17 59017 0.1733 0.4430 -0.23597 2020 6 18 59018 0.1750 0.4424 -0.23563 2020 6 19 59019 0.1767 0.4418 -0.23513 2020 6 20 59020 0.1784 0.4412 -0.23448 2020 6 21 59021 0.1800 0.4405 -0.23368 2020 6 22 59022 0.1817 0.4398 -0.23277 2020 6 23 59023 0.1833 0.4391 -0.23184 2020 6 24 59024 0.1849 0.4383 -0.23097 2020 6 25 59025 0.1866 0.4375 -0.23025 2020 6 26 59026 0.1881 0.4367 -0.22974 2020 6 27 59027 0.1897 0.4359 -0.22945 2020 6 28 59028 0.1913 0.4350 -0.22936 2020 6 29 59029 0.1928 0.4341 -0.22940 2020 6 30 59030 0.1944 0.4332 -0.22944 2020 7 1 59031 0.1959 0.4323 -0.22939 2020 7 2 59032 0.1974 0.4314 -0.22918 2020 7 3 59033 0.1989 0.4304 -0.22877 2020 7 4 59034 0.2003 0.4294 -0.22820 2020 7 5 59035 0.2018 0.4284 -0.22754 2020 7 6 59036 0.2032 0.4273 -0.22687 2020 7 7 59037 0.2046 0.4262 -0.22628 2020 7 8 59038 0.2060 0.4251 -0.22581 2020 7 9 59039 0.2074 0.4240 -0.22549 2020 7 10 59040 0.2087 0.4229 -0.22529 2020 7 11 59041 0.2101 0.4217 -0.22520 2020 7 12 59042 0.2114 0.4205 -0.22515 2020 7 13 59043 0.2126 0.4193 -0.22510 2020 7 14 59044 0.2139 0.4181 -0.22501 2020 7 15 59045 0.2151 0.4169 -0.22483 2020 7 16 59046 0.2164 0.4156 -0.22453 2020 7 17 59047 0.2176 0.4143 -0.22411 2020 7 18 59048 0.2187 0.4130 -0.22358 2020 7 19 59049 0.2199 0.4117 -0.22299 2020 7 20 59050 0.2210 0.4104 -0.22238 2020 7 21 59051 0.2221 0.4090 -0.22184 2020 7 22 59052 0.2232 0.4076 -0.22145 2020 7 23 59053 0.2242 0.4062 -0.22127 2020 7 24 59054 0.2252 0.4048 -0.22130 2020 7 25 59055 0.2262 0.4034 -0.22151 2020 7 26 59056 0.2272 0.4020 -0.22182 2020 7 27 59057 0.2282 0.4005 -0.22211 2020 7 28 59058 0.2291 0.3990 -0.22232 2020 7 29 59059 0.2300 0.3975 -0.22238 2020 7 30 59060 0.2308 0.3960 -0.22223 2020 7 31 59061 0.2317 0.3945 -0.22192 2020 8 1 59062 0.2325 0.3930 -0.22148 2020 8 2 59063 0.2332 0.3914 -0.22095 2020 8 3 59064 0.2340 0.3899 -0.22040 2020 8 4 59065 0.2347 0.3883 -0.21994 2020 8 5 59066 0.2354 0.3867 -0.21962 2020 8 6 59067 0.2361 0.3851 -0.21943 2020 8 7 59068 0.2367 0.3835 -0.21941 2020 8 8 59069 0.2373 0.3819 -0.21948 2020 8 9 59070 0.2379 0.3803 -0.21955 2020 8 10 59071 0.2384 0.3787 -0.21957 2020 8 11 59072 0.2389 0.3770 -0.21948 2020 8 12 59073 0.2394 0.3754 -0.21929 2020 8 13 59074 0.2399 0.3737 -0.21900 2020 8 14 59075 0.2403 0.3720 -0.21861 2020 8 15 59076 0.2407 0.3704 -0.21818 2020 8 16 59077 0.2410 0.3687 -0.21771 2020 8 17 59078 0.2414 0.3670 -0.21725 2020 8 18 59079 0.2417 0.3653 -0.21691 2020 8 19 59080 0.2419 0.3636 -0.21677 2020 8 20 59081 0.2422 0.3619 -0.21686 2020 8 21 59082 0.2424 0.3602 -0.21721 2020 8 22 59083 0.2425 0.3585 -0.21779 2020 8 23 59084 0.2427 0.3568 -0.21846 2020 8 24 59085 0.2428 0.3551 -0.21901 2020 8 25 59086 0.2428 0.3533 -0.21933 2020 8 26 59087 0.2429 0.3516 -0.21940 2020 8 27 59088 0.2429 0.3499 -0.21930 2020 8 28 59089 0.2429 0.3482 -0.21906 2020 8 29 59090 0.2428 0.3465 -0.21869 2020 8 30 59091 0.2427 0.3447 -0.21831 2020 8 31 59092 0.2426 0.3430 -0.21795 2020 9 1 59093 0.2425 0.3413 -0.21768 2020 9 2 59094 0.2423 0.3396 -0.21756 2020 9 3 59095 0.2421 0.3379 -0.21759 2020 9 4 59096 0.2418 0.3362 -0.21771 2020 9 5 59097 0.2415 0.3345 -0.21789 2020 9 6 59098 0.2412 0.3327 -0.21813 2020 9 7 59099 0.2409 0.3311 -0.21833 2020 9 8 59100 0.2405 0.3294 -0.21846 2020 9 9 59101 0.2401 0.3277 -0.21849 2020 9 10 59102 0.2397 0.3260 -0.21844 2020 9 11 59103 0.2392 0.3243 -0.21836 2020 9 12 59104 0.2387 0.3226 -0.21821 2020 9 13 59105 0.2382 0.3210 -0.21816 2020 9 14 59106 0.2376 0.3193 -0.21826 2020 9 15 59107 0.2370 0.3177 -0.21858 2020 9 16 59108 0.2364 0.3161 -0.21915 2020 9 17 59109 0.2357 0.3144 -0.22000 2020 9 18 59110 0.2351 0.3128 -0.22106 2020 9 19 59111 0.2343 0.3112 -0.22227 2020 9 20 59112 0.2336 0.3096 -0.22347 2020 9 21 59113 0.2328 0.3080 -0.22447 2020 9 22 59114 0.2320 0.3065 -0.22522 2020 9 23 59115 0.2312 0.3049 -0.22574 2020 9 24 59116 0.2303 0.3034 -0.22605 2020 9 25 59117 0.2294 0.3018 -0.22626 2020 9 26 59118 0.2285 0.3003 -0.22643 2020 9 27 59119 0.2275 0.2988 -0.22667 2020 9 28 59120 0.2266 0.2973 -0.22700 2020 9 29 59121 0.2256 0.2959 -0.22746 2020 9 30 59122 0.2245 0.2944 -0.22808 2020 10 1 59123 0.2235 0.2930 -0.22880 2020 10 2 59124 0.2224 0.2915 -0.22958 2020 10 3 59125 0.2213 0.2901 -0.23036 2020 10 4 59126 0.2201 0.2887 -0.23107 2020 10 5 59127 0.2189 0.2874 -0.23170 2020 10 6 59128 0.2177 0.2860 -0.23224 2020 10 7 59129 0.2165 0.2847 -0.23265 2020 10 8 59130 0.2153 0.2834 -0.23298 2020 10 9 59131 0.2140 0.2821 -0.23324 2020 10 10 59132 0.2127 0.2808 -0.23343 2020 10 11 59133 0.2114 0.2795 -0.23367 2020 10 12 59134 0.2100 0.2783 -0.23407 2020 10 13 59135 0.2087 0.2771 -0.23472 2020 10 14 59136 0.2073 0.2759 -0.23566 2020 10 15 59137 0.2059 0.2747 -0.23684 2020 10 16 59138 0.2044 0.2736 -0.23819 2020 10 17 59139 0.2030 0.2725 -0.23961 2020 10 18 59140 0.2015 0.2714 -0.24092 2020 10 19 59141 0.2000 0.2703 -0.24200 2020 10 20 59142 0.1985 0.2692 -0.24281 2020 10 21 59143 0.1969 0.2682 -0.24339 2020 10 22 59144 0.1954 0.2672 -0.24385 2020 10 23 59145 0.1938 0.2662 -0.24422 2020 10 24 59146 0.1922 0.2653 -0.24462 2020 10 25 59147 0.1906 0.2643 -0.24514 2020 10 26 59148 0.1889 0.2634 -0.24579 2020 10 27 59149 0.1873 0.2626 -0.24660 2020 10 28 59150 0.1856 0.2617 -0.24752 2020 10 29 59151 0.1839 0.2609 -0.24856 2020 10 30 59152 0.1822 0.2601 -0.24963 2020 10 31 59153 0.1805 0.2593 -0.25069 2020 11 1 59154 0.1787 0.2586 -0.25172 2020 11 2 59155 0.1770 0.2578 -0.25268 2020 11 3 59156 0.1752 0.2572 -0.25354 2020 11 4 59157 0.1735 0.2565 -0.25430 2020 11 5 59158 0.1717 0.2559 -0.25500 2020 11 6 59159 0.1699 0.2553 -0.25570 2020 11 7 59160 0.1681 0.2547 -0.25641 2020 11 8 59161 0.1662 0.2541 -0.25724 2020 11 9 59162 0.1644 0.2536 -0.25823 2020 11 10 59163 0.1625 0.2531 -0.25942 2020 11 11 59164 0.1607 0.2527 -0.26088 2020 11 12 59165 0.1588 0.2522 -0.26256 2020 11 13 59166 0.1569 0.2518 -0.26435 2020 11 14 59167 0.1551 0.2515 -0.26612 2020 11 15 59168 0.1532 0.2511 -0.26774 2020 11 16 59169 0.1513 0.2508 -0.26910 2020 11 17 59170 0.1494 0.2505 -0.27019 2020 11 18 59171 0.1474 0.2503 -0.27099 2020 11 19 59172 0.1455 0.2501 -0.27164 2020 11 20 59173 0.1436 0.2499 -0.27232 2020 11 21 59174 0.1417 0.2497 -0.27306 2020 11 22 59175 0.1397 0.2496 -0.27396 2020 11 23 59176 0.1378 0.2495 -0.27501 2020 11 24 59177 0.1359 0.2495 -0.27616 2020 11 25 59178 0.1339 0.2494 -0.27742 2020 11 26 59179 0.1320 0.2494 -0.27867 2020 11 27 59180 0.1301 0.2495 -0.27984 2020 11 28 59181 0.1281 0.2495 -0.28094 2020 11 29 59182 0.1262 0.2496 -0.28189 2020 11 30 59183 0.1242 0.2497 -0.28269 2020 12 1 59184 0.1223 0.2499 -0.28337 2020 12 2 59185 0.1204 0.2501 -0.28393 2020 12 3 59186 0.1184 0.2503 -0.28440 2020 12 4 59187 0.1165 0.2505 -0.28483 2020 12 5 59188 0.1146 0.2508 -0.28530 2020 12 6 59189 0.1126 0.2511 -0.28588 2020 12 7 59190 0.1107 0.2515 -0.28665 2020 12 8 59191 0.1088 0.2518 -0.28760 2020 12 9 59192 0.1069 0.2522 -0.28871 2020 12 10 59193 0.1050 0.2527 -0.28996 2020 12 11 59194 0.1031 0.2531 -0.29125 2020 12 12 59195 0.1012 0.2536 -0.29242 2020 12 13 59196 0.0993 0.2542 -0.29345 2020 12 14 59197 0.0974 0.2547 -0.29423 2020 12 15 59198 0.0956 0.2553 -0.29482 2020 12 16 59199 0.0937 0.2559 -0.29528 2020 12 17 59200 0.0919 0.2566 -0.29575 2020 12 18 59201 0.0901 0.2572 -0.29628 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) 58821 -110.22 0.50 -6.87 0.10 58822 -110.15 0.50 -6.93 0.10 58823 -110.08 0.50 -6.98 0.10 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58821 0.222 0.197 0.076 0.097 58822 0.266 0.197 0.051 0.097 58823 0.309 0.197 0.028 0.097 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).