********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 22 June 2023 Vol. XXXVI No. 025 ______________________________________________________________________ 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 = 0.0 seconds beginning 28 July 2022 at 0000 UTC Beginning 1 January 2017: TAI-UTC = 37.000 000 seconds *********************************************************************** * ANNOUNCEMENTS: * * * * NO leap second will be introduced at the end of June 2023. * * * * 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 23 6 16 60111 0.13653 .00009 0.51291 .00009 -0.044257 0.000016 23 6 17 60112 0.13948 .00009 0.51289 .00009 -0.043581 0.000011 23 6 18 60113 0.14252 .00009 0.51274 .00009 -0.042812 0.000011 23 6 19 60114 0.14563 .00009 0.51251 .00009 -0.041986 0.000017 23 6 20 60115 0.14874 .00009 0.51231 .00009 -0.041137 0.000023 23 6 21 60116 0.15206 .00009 0.51197 .00009 -0.040325 0.000022 23 6 22 60117 0.15549 .00009 0.51165 .00009 -0.039610 0.000021 _______________________________________________________________________ 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 = 0.1312 + 0.0153 cos A + 0.1157 sin A + 0.0088 cos C + 0.0591 sin C y = 0.3452 + 0.1059 cos A - 0.0130 sin A + 0.0591 cos C - 0.0088 sin C UT1-UTC = -0.0284 + 0.00012 (MJD - 60125) - (UT2-UT1) where A = 2*pi*(MJD-60117)/365.25 and C = 2*pi*(MJD-60117)/435. TAI-UTC(MJD 60118) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-60117)**0.80 S t = 0.00025 (MJD-60117)**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) 2023 6 23 60118 0.1587 0.5113 -0.03898 2023 6 24 60119 0.1617 0.5110 -0.03847 2023 6 25 60120 0.1645 0.5106 -0.03809 2023 6 26 60121 0.1673 0.5102 -0.03783 2023 6 27 60122 0.1699 0.5097 -0.03763 2023 6 28 60123 0.1726 0.5091 -0.03744 2023 6 29 60124 0.1752 0.5084 -0.03717 2023 6 30 60125 0.1779 0.5077 -0.03675 2023 7 1 60126 0.1805 0.5070 -0.03611 2023 7 2 60127 0.1832 0.5062 -0.03526 2023 7 3 60128 0.1858 0.5054 -0.03426 2023 7 4 60129 0.1884 0.5046 -0.03326 2023 7 5 60130 0.1910 0.5038 -0.03243 2023 7 6 60131 0.1936 0.5029 -0.03188 2023 7 7 60132 0.1962 0.5019 -0.03161 2023 7 8 60133 0.1987 0.5009 -0.03154 2023 7 9 60134 0.2012 0.4999 -0.03157 2023 7 10 60135 0.2037 0.4989 -0.03156 2023 7 11 60136 0.2061 0.4978 -0.03140 2023 7 12 60137 0.2085 0.4966 -0.03103 2023 7 13 60138 0.2109 0.4955 -0.03040 2023 7 14 60139 0.2133 0.4942 -0.02953 2023 7 15 60140 0.2156 0.4930 -0.02847 2023 7 16 60141 0.2180 0.4917 -0.02728 2023 7 17 60142 0.2203 0.4904 -0.02605 2023 7 18 60143 0.2225 0.4890 -0.02486 2023 7 19 60144 0.2248 0.4877 -0.02379 2023 7 20 60145 0.2270 0.4862 -0.02288 2023 7 21 60146 0.2292 0.4848 -0.02217 2023 7 22 60147 0.2314 0.4833 -0.02165 2023 7 23 60148 0.2335 0.4818 -0.02129 2023 7 24 60149 0.2356 0.4803 -0.02104 2023 7 25 60150 0.2377 0.4787 -0.02084 2023 7 26 60151 0.2398 0.4771 -0.02060 2023 7 27 60152 0.2418 0.4754 -0.02023 2023 7 28 60153 0.2438 0.4738 -0.01969 2023 7 29 60154 0.2457 0.4721 -0.01893 2023 7 30 60155 0.2477 0.4703 -0.01801 2023 7 31 60156 0.2496 0.4686 -0.01702 2023 8 1 60157 0.2514 0.4668 -0.01611 2023 8 2 60158 0.2532 0.4650 -0.01544 2023 8 3 60159 0.2550 0.4631 -0.01506 2023 8 4 60160 0.2568 0.4613 -0.01497 2023 8 5 60161 0.2585 0.4594 -0.01505 2023 8 6 60162 0.2602 0.4575 -0.01514 2023 8 7 60163 0.2619 0.4555 -0.01511 2023 8 8 60164 0.2635 0.4536 -0.01484 2023 8 9 60165 0.2651 0.4516 -0.01429 2023 8 10 60166 0.2667 0.4496 -0.01348 2023 8 11 60167 0.2682 0.4475 -0.01246 2023 8 12 60168 0.2697 0.4455 -0.01131 2023 8 13 60169 0.2711 0.4434 -0.01011 2023 8 14 60170 0.2725 0.4413 -0.00893 2023 8 15 60171 0.2739 0.4392 -0.00785 2023 8 16 60172 0.2752 0.4370 -0.00692 2023 8 17 60173 0.2765 0.4349 -0.00615 2023 8 18 60174 0.2778 0.4327 -0.00556 2023 8 19 60175 0.2790 0.4305 -0.00512 2023 8 20 60176 0.2802 0.4283 -0.00477 2023 8 21 60177 0.2813 0.4261 -0.00446 2023 8 22 60178 0.2824 0.4238 -0.00412 2023 8 23 60179 0.2835 0.4216 -0.00367 2023 8 24 60180 0.2845 0.4193 -0.00309 2023 8 25 60181 0.2855 0.4170 -0.00233 2023 8 26 60182 0.2865 0.4147 -0.00143 2023 8 27 60183 0.2874 0.4124 -0.00045 2023 8 28 60184 0.2882 0.4101 0.00047 2023 8 29 60185 0.2890 0.4077 0.00119 2023 8 30 60186 0.2898 0.4054 0.00159 2023 8 31 60187 0.2905 0.4030 0.00164 2023 9 1 60188 0.2912 0.4007 0.00141 2023 9 2 60189 0.2919 0.3983 0.00103 2023 9 3 60190 0.2925 0.3959 0.00071 2023 9 4 60191 0.2931 0.3935 0.00058 2023 9 5 60192 0.2936 0.3911 0.00073 2023 9 6 60193 0.2941 0.3887 0.00117 2023 9 7 60194 0.2945 0.3863 0.00184 2023 9 8 60195 0.2950 0.3839 0.00266 2023 9 9 60196 0.2953 0.3815 0.00355 2023 9 10 60197 0.2956 0.3790 0.00442 2023 9 11 60198 0.2959 0.3766 0.00519 2023 9 12 60199 0.2962 0.3742 0.00582 2023 9 13 60200 0.2963 0.3718 0.00626 2023 9 14 60201 0.2965 0.3693 0.00652 2023 9 15 60202 0.2966 0.3669 0.00661 2023 9 16 60203 0.2967 0.3645 0.00658 2023 9 17 60204 0.2967 0.3620 0.00650 2023 9 18 60205 0.2967 0.3596 0.00644 2023 9 19 60206 0.2966 0.3572 0.00648 2023 9 20 60207 0.2965 0.3547 0.00667 2023 9 21 60208 0.2964 0.3523 0.00703 2023 9 22 60209 0.2962 0.3499 0.00755 2023 9 23 60210 0.2960 0.3475 0.00817 2023 9 24 60211 0.2957 0.3451 0.00878 2023 9 25 60212 0.2954 0.3427 0.00924 2023 9 26 60213 0.2951 0.3403 0.00942 2023 9 27 60214 0.2947 0.3379 0.00926 2023 9 28 60215 0.2943 0.3355 0.00877 2023 9 29 60216 0.2938 0.3331 0.00804 2023 9 30 60217 0.2933 0.3308 0.00726 2023 10 1 60218 0.2928 0.3284 0.00659 2023 10 2 60219 0.2922 0.3261 0.00617 2023 10 3 60220 0.2916 0.3237 0.00605 2023 10 4 60221 0.2909 0.3214 0.00621 2023 10 5 60222 0.2902 0.3191 0.00657 2023 10 6 60223 0.2894 0.3168 0.00704 2023 10 7 60224 0.2887 0.3145 0.00752 2023 10 8 60225 0.2878 0.3123 0.00793 2023 10 9 60226 0.2870 0.3100 0.00811 2023 10 10 60227 0.2861 0.3078 0.00813 2023 10 11 60228 0.2852 0.3055 0.00796 2023 10 12 60229 0.2842 0.3033 0.00762 2023 10 13 60230 0.2832 0.3011 0.00715 2023 10 14 60231 0.2822 0.2990 0.00660 2023 10 15 60232 0.2811 0.2968 0.00606 2023 10 16 60233 0.2800 0.2947 0.00560 2023 10 17 60234 0.2788 0.2925 0.00530 2023 10 18 60235 0.2776 0.2904 0.00519 2023 10 19 60236 0.2764 0.2884 0.00526 2023 10 20 60237 0.2752 0.2863 0.00548 2023 10 21 60238 0.2739 0.2843 0.00573 2023 10 22 60239 0.2726 0.2822 0.00590 2023 10 23 60240 0.2712 0.2803 0.00587 2023 10 24 60241 0.2698 0.2783 0.00554 2023 10 25 60242 0.2684 0.2763 0.00490 2023 10 26 60243 0.2670 0.2744 0.00401 2023 10 27 60244 0.2655 0.2725 0.00299 2023 10 28 60245 0.2640 0.2706 0.00201 2023 10 29 60246 0.2624 0.2688 0.00122 2023 10 30 60247 0.2609 0.2669 0.00072 2023 10 31 60248 0.2593 0.2651 0.00053 2023 11 1 60249 0.2576 0.2634 0.00059 2023 11 2 60250 0.2560 0.2616 0.00081 2023 11 3 60251 0.2543 0.2599 0.00108 2023 11 4 60252 0.2526 0.2582 0.00133 2023 11 5 60253 0.2509 0.2565 0.00147 2023 11 6 60254 0.2491 0.2549 0.00147 2023 11 7 60255 0.2473 0.2533 0.00129 2023 11 8 60256 0.2455 0.2517 0.00095 2023 11 9 60257 0.2437 0.2502 0.00047 2023 11 10 60258 0.2418 0.2486 -0.00009 2023 11 11 60259 0.2399 0.2472 -0.00067 2023 11 12 60260 0.2380 0.2457 -0.00118 2023 11 13 60261 0.2361 0.2443 -0.00155 2023 11 14 60262 0.2341 0.2429 -0.00173 2023 11 15 60263 0.2321 0.2415 -0.00170 2023 11 16 60264 0.2301 0.2402 -0.00150 2023 11 17 60265 0.2281 0.2389 -0.00121 2023 11 18 60266 0.2261 0.2376 -0.00097 2023 11 19 60267 0.2240 0.2364 -0.00088 2023 11 20 60268 0.2220 0.2352 -0.00104 2023 11 21 60269 0.2199 0.2340 -0.00148 2023 11 22 60270 0.2178 0.2328 -0.00215 2023 11 23 60271 0.2156 0.2317 -0.00297 2023 11 24 60272 0.2135 0.2307 -0.00378 2023 11 25 60273 0.2114 0.2296 -0.00446 2023 11 26 60274 0.2092 0.2286 -0.00488 2023 11 27 60275 0.2070 0.2277 -0.00502 2023 11 28 60276 0.2048 0.2267 -0.00488 2023 11 29 60277 0.2026 0.2258 -0.00454 2023 11 30 60278 0.2004 0.2250 -0.00410 2023 12 1 60279 0.1981 0.2242 -0.00366 2023 12 2 60280 0.1959 0.2234 -0.00329 2023 12 3 60281 0.1937 0.2226 -0.00306 2023 12 4 60282 0.1914 0.2219 -0.00298 2023 12 5 60283 0.1891 0.2212 -0.00306 2023 12 6 60284 0.1868 0.2206 -0.00328 2023 12 7 60285 0.1845 0.2200 -0.00359 2023 12 8 60286 0.1823 0.2194 -0.00393 2023 12 9 60287 0.1800 0.2189 -0.00423 2023 12 10 60288 0.1776 0.2183 -0.00442 2023 12 11 60289 0.1753 0.2179 -0.00443 2023 12 12 60290 0.1730 0.2175 -0.00424 2023 12 13 60291 0.1707 0.2171 -0.00385 2023 12 14 60292 0.1684 0.2167 -0.00334 2023 12 15 60293 0.1661 0.2164 -0.00284 2023 12 16 60294 0.1637 0.2161 -0.00246 2023 12 17 60295 0.1614 0.2159 -0.00232 2023 12 18 60296 0.1591 0.2157 -0.00245 2023 12 19 60297 0.1567 0.2155 -0.00282 2023 12 20 60298 0.1544 0.2153 -0.00332 2023 12 21 60299 0.1521 0.2152 -0.00383 2023 12 22 60300 0.1498 0.2152 -0.00421 2023 12 23 60301 0.1474 0.2152 -0.00435 2023 12 24 60302 0.1451 0.2152 -0.00421 2023 12 25 60303 0.1428 0.2152 -0.00380 2023 12 26 60304 0.1405 0.2153 -0.00316 2023 12 27 60305 0.1382 0.2154 -0.00238 2023 12 28 60306 0.1359 0.2156 -0.00156 2023 12 29 60307 0.1336 0.2158 -0.00079 2023 12 30 60308 0.1313 0.2160 -0.00014 2023 12 31 60309 0.1290 0.2163 0.00034 2024 1 1 60310 0.1268 0.2166 0.00064 2024 1 2 60311 0.1245 0.2169 0.00076 2024 1 3 60312 0.1223 0.2173 0.00073 2024 1 4 60313 0.1200 0.2177 0.00061 2024 1 5 60314 0.1178 0.2181 0.00045 2024 1 6 60315 0.1156 0.2186 0.00033 2024 1 7 60316 0.1134 0.2191 0.00031 2024 1 8 60317 0.1112 0.2196 0.00046 2024 1 9 60318 0.1090 0.2202 0.00080 2024 1 10 60319 0.1068 0.2208 0.00128 2024 1 11 60320 0.1047 0.2215 0.00181 2024 1 12 60321 0.1025 0.2221 0.00226 2024 1 13 60322 0.1004 0.2228 0.00250 2024 1 14 60323 0.0983 0.2236 0.00247 2024 1 15 60324 0.0962 0.2244 0.00218 2024 1 16 60325 0.0941 0.2252 0.00172 2024 1 17 60326 0.0921 0.2260 0.00124 2024 1 18 60327 0.0900 0.2269 0.00086 2024 1 19 60328 0.0880 0.2278 0.00070 2024 1 20 60329 0.0860 0.2287 0.00081 2024 1 21 60330 0.0841 0.2297 0.00118 2024 1 22 60331 0.0821 0.2307 0.00177 2024 1 23 60332 0.0802 0.2317 0.00250 2024 1 24 60333 0.0782 0.2327 0.00328 2024 1 25 60334 0.0763 0.2338 0.00401 2024 1 26 60335 0.0745 0.2349 0.00463 2024 1 27 60336 0.0726 0.2361 0.00507 2024 1 28 60337 0.0708 0.2372 0.00532 2024 1 29 60338 0.0690 0.2384 0.00539 2024 1 30 60339 0.0672 0.2397 0.00529 2024 1 31 60340 0.0655 0.2409 0.00508 2024 2 1 60341 0.0637 0.2422 0.00481 2024 2 2 60342 0.0620 0.2435 0.00453 2024 2 3 60343 0.0604 0.2448 0.00434 2024 2 4 60344 0.0587 0.2462 0.00428 2024 2 5 60345 0.0571 0.2476 0.00442 2024 2 6 60346 0.0555 0.2490 0.00471 2024 2 7 60347 0.0539 0.2504 0.00503 2024 2 8 60348 0.0524 0.2518 0.00533 2024 2 9 60349 0.0509 0.2533 0.00539 2024 2 10 60350 0.0494 0.2548 0.00513 2024 2 11 60351 0.0479 0.2563 0.00454 2024 2 12 60352 0.0465 0.2579 0.00367 2024 2 13 60353 0.0451 0.2594 0.00269 2024 2 14 60354 0.0437 0.2610 0.00178 2024 2 15 60355 0.0424 0.2626 0.00108 2024 2 16 60356 0.0411 0.2642 0.00067 2024 2 17 60357 0.0398 0.2659 0.00052 2024 2 18 60358 0.0386 0.2675 0.00049 2024 2 19 60359 0.0374 0.2692 0.00065 2024 2 20 60360 0.0362 0.2709 0.00086 2024 2 21 60361 0.0350 0.2726 0.00099 2024 2 22 60362 0.0339 0.2744 0.00103 2024 2 23 60363 0.0328 0.2761 0.00085 2024 2 24 60364 0.0318 0.2779 0.00050 2024 2 25 60365 0.0308 0.2797 0.00009 2024 2 26 60366 0.0298 0.2814 -0.00039 2024 2 27 60367 0.0288 0.2833 -0.00092 2024 2 28 60368 0.0279 0.2851 -0.00149 2024 2 29 60369 0.0270 0.2869 -0.00206 2024 3 1 60370 0.0262 0.2888 -0.00252 2024 3 2 60371 0.0254 0.2906 -0.00282 2024 3 3 60372 0.0246 0.2925 -0.00302 2024 3 4 60373 0.0239 0.2944 -0.00309 2024 3 5 60374 0.0231 0.2962 -0.00307 2024 3 6 60375 0.0225 0.2981 -0.00312 2024 3 7 60376 0.0218 0.3001 -0.00328 2024 3 8 60377 0.0212 0.3020 -0.00370 2024 3 9 60378 0.0207 0.3039 -0.00452 2024 3 10 60379 0.0201 0.3058 -0.00568 2024 3 11 60380 0.0196 0.3078 -0.00709 2024 3 12 60381 0.0192 0.3097 -0.00853 2024 3 13 60382 0.0187 0.3117 -0.00971 2024 3 14 60383 0.0183 0.3136 -0.01053 2024 3 15 60384 0.0180 0.3156 -0.01093 2024 3 16 60385 0.0177 0.3176 -0.01098 2024 3 17 60386 0.0174 0.3195 -0.01084 2024 3 18 60387 0.0171 0.3215 -0.01062 2024 3 19 60388 0.0169 0.3235 -0.01042 2024 3 20 60389 0.0167 0.3254 -0.01025 2024 3 21 60390 0.0166 0.3274 -0.01019 2024 3 22 60391 0.0165 0.3294 -0.01024 2024 3 23 60392 0.0164 0.3314 -0.01044 2024 3 24 60393 0.0164 0.3334 -0.01079 2024 3 25 60394 0.0164 0.3353 -0.01127 2024 3 26 60395 0.0164 0.3373 -0.01184 2024 3 27 60396 0.0165 0.3393 -0.01236 2024 3 28 60397 0.0166 0.3413 -0.01268 2024 3 29 60398 0.0167 0.3432 -0.01287 2024 3 30 60399 0.0169 0.3452 -0.01289 2024 3 31 60400 0.0171 0.3471 -0.01269 2024 4 1 60401 0.0173 0.3491 -0.01239 2024 4 2 60402 0.0176 0.3511 -0.01197 2024 4 3 60403 0.0179 0.3530 -0.01159 2024 4 4 60404 0.0182 0.3549 -0.01145 2024 4 5 60405 0.0186 0.3569 -0.01164 2024 4 6 60406 0.0190 0.3588 -0.01223 2024 4 7 60407 0.0195 0.3607 -0.01312 2024 4 8 60408 0.0200 0.3626 -0.01411 2024 4 9 60409 0.0205 0.3645 -0.01514 2024 4 10 60410 0.0210 0.3664 -0.01602 2024 4 11 60411 0.0216 0.3683 -0.01652 2024 4 12 60412 0.0222 0.3701 -0.01678 2024 4 13 60413 0.0229 0.3720 -0.01675 2024 4 14 60414 0.0235 0.3738 -0.01663 2024 4 15 60415 0.0242 0.3757 -0.01647 2024 4 16 60416 0.0250 0.3775 -0.01642 2024 4 17 60417 0.0257 0.3793 -0.01647 2024 4 18 60418 0.0265 0.3811 -0.01667 2024 4 19 60419 0.0274 0.3828 -0.01705 2024 4 20 60420 0.0282 0.3846 -0.01757 2024 4 21 60421 0.0291 0.3864 -0.01817 2024 4 22 60422 0.0300 0.3881 -0.01888 2024 4 23 60423 0.0310 0.3898 -0.01954 2024 4 24 60424 0.0320 0.3915 -0.02006 2024 4 25 60425 0.0330 0.3932 -0.02041 2024 4 26 60426 0.0340 0.3948 -0.02054 2024 4 27 60427 0.0351 0.3965 -0.02043 2024 4 28 60428 0.0362 0.3981 -0.02011 2024 4 29 60429 0.0373 0.3997 -0.01967 2024 4 30 60430 0.0384 0.4013 -0.01918 2024 5 1 60431 0.0396 0.4029 -0.01882 2024 5 2 60432 0.0408 0.4044 -0.01867 2024 5 3 60433 0.0420 0.4060 -0.01883 2024 5 4 60434 0.0433 0.4075 -0.01927 2024 5 5 60435 0.0446 0.4090 -0.01995 2024 5 6 60436 0.0458 0.4104 -0.02072 2024 5 7 60437 0.0472 0.4119 -0.02123 2024 5 8 60438 0.0485 0.4133 -0.02143 2024 5 9 60439 0.0499 0.4147 -0.02119 2024 5 10 60440 0.0513 0.4161 -0.02070 2024 5 11 60441 0.0527 0.4174 -0.01995 2024 5 12 60442 0.0541 0.4188 -0.01919 2024 5 13 60443 0.0556 0.4201 -0.01846 2024 5 14 60444 0.0571 0.4214 -0.01787 2024 5 15 60445 0.0585 0.4226 -0.01749 2024 5 16 60446 0.0601 0.4239 -0.01734 2024 5 17 60447 0.0616 0.4251 -0.01739 2024 5 18 60448 0.0632 0.4262 -0.01761 2024 5 19 60449 0.0647 0.4274 -0.01787 2024 5 20 60450 0.0663 0.4285 -0.01809 2024 5 21 60451 0.0679 0.4296 -0.01820 2024 5 22 60452 0.0695 0.4307 -0.01813 2024 5 23 60453 0.0712 0.4318 -0.01784 2024 5 24 60454 0.0728 0.4328 -0.01736 2024 5 25 60455 0.0745 0.4338 -0.01667 2024 5 26 60456 0.0762 0.4348 -0.01588 2024 5 27 60457 0.0779 0.4357 -0.01509 2024 5 28 60458 0.0796 0.4366 -0.01445 2024 5 29 60459 0.0813 0.4375 -0.01395 2024 5 30 60460 0.0831 0.4384 -0.01376 2024 5 31 60461 0.0848 0.4392 -0.01377 2024 6 1 60462 0.0866 0.4400 -0.01396 2024 6 2 60463 0.0884 0.4408 -0.01428 2024 6 3 60464 0.0902 0.4415 -0.01454 2024 6 4 60465 0.0920 0.4422 -0.01452 2024 6 5 60466 0.0938 0.4429 -0.01414 2024 6 6 60467 0.0956 0.4436 -0.01341 2024 6 7 60468 0.0974 0.4442 -0.01240 2024 6 8 60469 0.0992 0.4448 -0.01125 2024 6 9 60470 0.1011 0.4454 -0.01008 2024 6 10 60471 0.1029 0.4459 -0.00894 2024 6 11 60472 0.1048 0.4464 -0.00795 2024 6 12 60473 0.1066 0.4469 -0.00710 2024 6 13 60474 0.1085 0.4473 -0.00642 2024 6 14 60475 0.1103 0.4477 -0.00586 2024 6 15 60476 0.1122 0.4481 -0.00539 2024 6 16 60477 0.1141 0.4485 -0.00486 2024 6 17 60478 0.1159 0.4488 -0.00436 2024 6 18 60479 0.1178 0.4491 -0.00372 2024 6 19 60480 0.1197 0.4494 -0.00287 2024 6 20 60481 0.1216 0.4496 -0.00182 2024 6 21 60482 0.1234 0.4498 -0.00061 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) 60097 -108.65 1.14 -9.25 0.11 60098 -108.93 1.14 -9.31 0.11 60099 -109.22 0.89 -9.54 0.12 60100 -109.39 0.74 -9.85 0.14 60101 -109.27 0.74 -10.07 0.14 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 60097 0.402 0.455 -0.104 0.107 60098 0.384 0.455 -0.114 0.107 60099 0.364 0.354 -0.124 0.120 60100 0.343 0.293 -0.134 0.144 60101 0.321 0.293 -0.143 0.144 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).