********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 24 September 2015 Vol. XXVIII No. 039 ______________________________________________________________________ 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 17 Sep 2015 at 0000 UTC Beginning 1 July 2015: TAI-UTC = 36.000 000 seconds *********************************************************************** * * * Please note that daily and Bulletin A EOP data can be obtained from * * the primary Earth Orientation (EO) servers at: * * http://maia.usno.navy.mil ftp://maia.usno.navy.mil * * and from the backup EO server at: * * http://toshi.nofs.navy.mil ftp://toshi.nofs.navy.mil * * * * An additional backup mirror of the daily and Bulletin A EOP data * * is now hosted by NASA's Archive of Space Geodesy Data server at: * * ftp://cddis.gsfc.nasa.gov/pub/products/iers * * Daily EOP data will be uploaded here at 18:00 UTC, and * * Bulletin A EOP data should by available by 20:00 UTC. * * * * 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 15 9 18 57283 0.22248 .00009 0.34219 .00009 0.250308 0.000012 15 9 19 57284 0.22145 .00009 0.34038 .00009 0.249130 0.000015 15 9 20 57285 0.22051 .00009 0.33839 .00009 0.247961 0.000013 15 9 21 57286 0.21956 .00009 0.33623 .00009 0.246743 0.000015 15 9 22 57287 0.21883 .00009 0.33407 .00009 0.245454 0.000014 15 9 23 57288 0.21839 .00009 0.33202 .00009 0.244107 0.000065 15 9 24 57289 0.21819 .00009 0.33000 .00009 0.242703 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 = 0.0994 + 0.0720 cos A - 0.0207 sin A + 0.0379 cos C - 0.0082 sin C y = 0.3553 - 0.0143 cos A - 0.0628 sin A - 0.0082 cos C - 0.0379 sin C UT1-UTC = 0.1747 - 0.00112 (MJD - 57297) - (UT2-UT1) where A = 2*pi*(MJD-57289)/365.25 and C = 2*pi*(MJD-57289)/435. TAI-UTC(MJD 57290) = 36.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-57289)**0.80 S t = 0.00025 (MJD-57289)**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) 2015 9 25 57290 0.2179 0.3282 0.24111 2015 9 26 57291 0.2176 0.3264 0.23928 2015 9 27 57292 0.2173 0.3247 0.23726 2015 9 28 57293 0.2168 0.3230 0.23513 2015 9 29 57294 0.2163 0.3212 0.23303 2015 9 30 57295 0.2157 0.3195 0.23108 2015 10 1 57296 0.2151 0.3178 0.22935 2015 10 2 57297 0.2146 0.3160 0.22783 2015 10 3 57298 0.2140 0.3144 0.22644 2015 10 4 57299 0.2135 0.3128 0.22510 2015 10 5 57300 0.2128 0.3112 0.22373 2015 10 6 57301 0.2121 0.3097 0.22235 2015 10 7 57302 0.2114 0.3082 0.22092 2015 10 8 57303 0.2106 0.3067 0.21940 2015 10 9 57304 0.2097 0.3052 0.21781 2015 10 10 57305 0.2089 0.3036 0.21617 2015 10 11 57306 0.2080 0.3021 0.21449 2015 10 12 57307 0.2071 0.3005 0.21279 2015 10 13 57308 0.2062 0.2990 0.21108 2015 10 14 57309 0.2052 0.2975 0.20940 2015 10 15 57310 0.2042 0.2960 0.20775 2015 10 16 57311 0.2032 0.2946 0.20613 2015 10 17 57312 0.2021 0.2931 0.20455 2015 10 18 57313 0.2011 0.2917 0.20298 2015 10 19 57314 0.2000 0.2902 0.20140 2015 10 20 57315 0.1988 0.2888 0.19978 2015 10 21 57316 0.1977 0.2874 0.19805 2015 10 22 57317 0.1965 0.2860 0.19618 2015 10 23 57318 0.1954 0.2846 0.19412 2015 10 24 57319 0.1942 0.2832 0.19188 2015 10 25 57320 0.1929 0.2819 0.18951 2015 10 26 57321 0.1917 0.2805 0.18707 2015 10 27 57322 0.1904 0.2792 0.18465 2015 10 28 57323 0.1891 0.2779 0.18235 2015 10 29 57324 0.1878 0.2767 0.18021 2015 10 30 57325 0.1864 0.2754 0.17825 2015 10 31 57326 0.1851 0.2742 0.17641 2015 11 1 57327 0.1837 0.2730 0.17467 2015 11 2 57328 0.1823 0.2718 0.17295 2015 11 3 57329 0.1809 0.2706 0.17124 2015 11 4 57330 0.1794 0.2694 0.16949 2015 11 5 57331 0.1779 0.2683 0.16771 2015 11 6 57332 0.1764 0.2672 0.16589 2015 11 7 57333 0.1749 0.2661 0.16404 2015 11 8 57334 0.1734 0.2650 0.16218 2015 11 9 57335 0.1718 0.2640 0.16034 2015 11 10 57336 0.1703 0.2630 0.15853 2015 11 11 57337 0.1687 0.2620 0.15678 2015 11 12 57338 0.1671 0.2610 0.15509 2015 11 13 57339 0.1655 0.2600 0.15345 2015 11 14 57340 0.1638 0.2591 0.15186 2015 11 15 57341 0.1622 0.2582 0.15029 2015 11 16 57342 0.1605 0.2573 0.14870 2015 11 17 57343 0.1589 0.2564 0.14704 2015 11 18 57344 0.1572 0.2556 0.14527 2015 11 19 57345 0.1555 0.2548 0.14335 2015 11 20 57346 0.1537 0.2540 0.14127 2015 11 21 57347 0.1520 0.2532 0.13906 2015 11 22 57348 0.1502 0.2525 0.13677 2015 11 23 57349 0.1485 0.2518 0.13448 2015 11 24 57350 0.1467 0.2511 0.13227 2015 11 25 57351 0.1449 0.2504 0.13022 2015 11 26 57352 0.1431 0.2498 0.12834 2015 11 27 57353 0.1413 0.2492 0.12664 2015 11 28 57354 0.1395 0.2486 0.12506 2015 11 29 57355 0.1377 0.2481 0.12354 2015 11 30 57356 0.1359 0.2475 0.12204 2015 12 1 57357 0.1340 0.2470 0.12053 2015 12 2 57358 0.1322 0.2465 0.11900 2015 12 3 57359 0.1303 0.2461 0.11743 2015 12 4 57360 0.1285 0.2457 0.11585 2015 12 5 57361 0.1266 0.2453 0.11426 2015 12 6 57362 0.1247 0.2449 0.11269 2015 12 7 57363 0.1228 0.2446 0.11116 2015 12 8 57364 0.1210 0.2443 0.10968 2015 12 9 57365 0.1191 0.2440 0.10827 2015 12 10 57366 0.1172 0.2437 0.10692 2015 12 11 57367 0.1153 0.2435 0.10563 2015 12 12 57368 0.1134 0.2433 0.10439 2015 12 13 57369 0.1115 0.2431 0.10315 2015 12 14 57370 0.1096 0.2430 0.10187 2015 12 15 57371 0.1077 0.2429 0.10050 2015 12 16 57372 0.1058 0.2428 0.09901 2015 12 17 57373 0.1039 0.2427 0.09740 2015 12 18 57374 0.1020 0.2427 0.09567 2015 12 19 57375 0.1001 0.2427 0.09387 2015 12 20 57376 0.0982 0.2427 0.09206 2015 12 21 57377 0.0963 0.2427 0.09030 2015 12 22 57378 0.0944 0.2428 0.08866 2015 12 23 57379 0.0925 0.2429 0.08716 2015 12 24 57380 0.0906 0.2431 0.08582 2015 12 25 57381 0.0887 0.2432 0.08460 2015 12 26 57382 0.0868 0.2434 0.08345 2015 12 27 57383 0.0849 0.2436 0.08231 2015 12 28 57384 0.0831 0.2439 0.08116 2015 12 29 57385 0.0812 0.2441 0.07996 2015 12 30 57386 0.0793 0.2444 0.07873 2015 12 31 57387 0.0775 0.2448 0.07747 2016 1 1 57388 0.0756 0.2451 0.07621 2016 1 2 57389 0.0738 0.2455 0.07496 2016 1 3 57390 0.0720 0.2459 0.07373 2016 1 4 57391 0.0701 0.2464 0.07256 2016 1 5 57392 0.0683 0.2468 0.07144 2016 1 6 57393 0.0665 0.2473 0.07038 2016 1 7 57394 0.0647 0.2479 0.06938 2016 1 8 57395 0.0630 0.2484 0.06842 2016 1 9 57396 0.0612 0.2490 0.06746 2016 1 10 57397 0.0594 0.2496 0.06646 2016 1 11 57398 0.0577 0.2502 0.06525 2016 1 12 57399 0.0560 0.2509 0.06391 2016 1 13 57400 0.0542 0.2515 0.06242 2016 1 14 57401 0.0525 0.2522 0.06079 2016 1 15 57402 0.0508 0.2530 0.05908 2016 1 16 57403 0.0492 0.2537 0.05734 2016 1 17 57404 0.0475 0.2545 0.05564 2016 1 18 57405 0.0459 0.2553 0.05405 2016 1 19 57406 0.0442 0.2561 0.05259 2016 1 20 57407 0.0426 0.2570 0.05126 2016 1 21 57408 0.0410 0.2579 0.05005 2016 1 22 57409 0.0394 0.2588 0.04890 2016 1 23 57410 0.0379 0.2597 0.04776 2016 1 24 57411 0.0363 0.2606 0.04660 2016 1 25 57412 0.0348 0.2616 0.04539 2016 1 26 57413 0.0333 0.2626 0.04411 2016 1 27 57414 0.0318 0.2636 0.04278 2016 1 28 57415 0.0303 0.2647 0.04142 2016 1 29 57416 0.0289 0.2657 0.04005 2016 1 30 57417 0.0275 0.2668 0.03869 2016 1 31 57418 0.0261 0.2679 0.03736 2016 2 1 57419 0.0247 0.2691 0.03609 2016 2 2 57420 0.0233 0.2702 0.03487 2016 2 3 57421 0.0220 0.2714 0.03370 2016 2 4 57422 0.0207 0.2726 0.03258 2016 2 5 57423 0.0194 0.2738 0.03146 2016 2 6 57424 0.0181 0.2750 0.03030 2016 2 7 57425 0.0169 0.2762 0.02905 2016 2 8 57426 0.0156 0.2775 0.02767 2016 2 9 57427 0.0144 0.2788 0.02611 2016 2 10 57428 0.0133 0.2801 0.02437 2016 2 11 57429 0.0121 0.2814 0.02251 2016 2 12 57430 0.0110 0.2828 0.02059 2016 2 13 57431 0.0099 0.2841 0.01870 2016 2 14 57432 0.0088 0.2855 0.01691 2016 2 15 57433 0.0077 0.2869 0.01526 2016 2 16 57434 0.0067 0.2883 0.01376 2016 2 17 57435 0.0057 0.2897 0.01239 2016 2 18 57436 0.0048 0.2912 0.01109 2016 2 19 57437 0.0038 0.2926 0.00982 2016 2 20 57438 0.0029 0.2941 0.00852 2016 2 21 57439 0.0020 0.2956 0.00718 2016 2 22 57440 0.0011 0.2971 0.00576 2016 2 23 57441 0.0003 0.2986 0.00428 2016 2 24 57442 -0.0005 0.3001 0.00275 2016 2 25 57443 -0.0013 0.3016 0.00120 2016 2 26 57444 -0.0020 0.3032 -0.00036 2016 2 27 57445 -0.0027 0.3047 -0.00190 2016 2 28 57446 -0.0034 0.3063 -0.00339 2016 2 29 57447 -0.0041 0.3079 -0.00482 2016 3 1 57448 -0.0047 0.3095 -0.00619 2016 3 2 57449 -0.0053 0.3111 -0.00751 2016 3 3 57450 -0.0059 0.3127 -0.00882 2016 3 4 57451 -0.0064 0.3143 -0.01014 2016 3 5 57452 -0.0069 0.3159 -0.01153 2016 3 6 57453 -0.0074 0.3176 -0.01305 2016 3 7 57454 -0.0079 0.3192 -0.01475 2016 3 8 57455 -0.0083 0.3209 -0.01664 2016 3 9 57456 -0.0087 0.3225 -0.01871 2016 3 10 57457 -0.0091 0.3242 -0.02090 2016 3 11 57458 -0.0094 0.3259 -0.02310 2016 3 12 57459 -0.0097 0.3276 -0.02524 2016 3 13 57460 -0.0100 0.3292 -0.02723 2016 3 14 57461 -0.0102 0.3309 -0.02905 2016 3 15 57462 -0.0104 0.3326 -0.03071 2016 3 16 57463 -0.0106 0.3343 -0.03227 2016 3 17 57464 -0.0107 0.3360 -0.03378 2016 3 18 57465 -0.0109 0.3377 -0.03528 2016 3 19 57466 -0.0109 0.3394 -0.03681 2016 3 20 57467 -0.0110 0.3411 -0.03841 2016 3 21 57468 -0.0110 0.3429 -0.04008 2016 3 22 57469 -0.0110 0.3446 -0.04180 2016 3 23 57470 -0.0110 0.3463 -0.04357 2016 3 24 57471 -0.0109 0.3480 -0.04535 2016 3 25 57472 -0.0108 0.3497 -0.04712 2016 3 26 57473 -0.0107 0.3514 -0.04886 2016 3 27 57474 -0.0105 0.3531 -0.05054 2016 3 28 57475 -0.0103 0.3548 -0.05216 2016 3 29 57476 -0.0101 0.3565 -0.05373 2016 3 30 57477 -0.0098 0.3582 -0.05525 2016 3 31 57478 -0.0096 0.3599 -0.05675 2016 4 1 57479 -0.0092 0.3616 -0.05827 2016 4 2 57480 -0.0089 0.3633 -0.05985 2016 4 3 57481 -0.0085 0.3650 -0.06153 2016 4 4 57482 -0.0081 0.3667 -0.06335 2016 4 5 57483 -0.0077 0.3684 -0.06532 2016 4 6 57484 -0.0072 0.3701 -0.06740 2016 4 7 57485 -0.0067 0.3717 -0.06953 2016 4 8 57486 -0.0062 0.3734 -0.07162 2016 4 9 57487 -0.0056 0.3750 -0.07359 2016 4 10 57488 -0.0051 0.3767 -0.07538 2016 4 11 57489 -0.0044 0.3783 -0.07700 2016 4 12 57490 -0.0038 0.3800 -0.07849 2016 4 13 57491 -0.0031 0.3816 -0.07989 2016 4 14 57492 -0.0024 0.3832 -0.08129 2016 4 15 57493 -0.0017 0.3848 -0.08272 2016 4 16 57494 -0.0010 0.3864 -0.08421 2016 4 17 57495 -0.0002 0.3880 -0.08576 2016 4 18 57496 0.0006 0.3895 -0.08736 2016 4 19 57497 0.0015 0.3911 -0.08897 2016 4 20 57498 0.0023 0.3927 -0.09058 2016 4 21 57499 0.0032 0.3942 -0.09215 2016 4 22 57500 0.0041 0.3957 -0.09366 2016 4 23 57501 0.0051 0.3972 -0.09509 2016 4 24 57502 0.0061 0.3987 -0.09641 2016 4 25 57503 0.0071 0.4002 -0.09760 2016 4 26 57504 0.0081 0.4017 -0.09865 2016 4 27 57505 0.0091 0.4031 -0.09960 2016 4 28 57506 0.0102 0.4046 -0.10047 2016 4 29 57507 0.0113 0.4060 -0.10135 2016 4 30 57508 0.0124 0.4074 -0.10231 2016 5 1 57509 0.0136 0.4088 -0.10341 2016 5 2 57510 0.0147 0.4102 -0.10470 2016 5 3 57511 0.0159 0.4116 -0.10615 2016 5 4 57512 0.0171 0.4129 -0.10772 2016 5 5 57513 0.0184 0.4142 -0.10932 2016 5 6 57514 0.0196 0.4155 -0.11085 2016 5 7 57515 0.0209 0.4168 -0.11222 2016 5 8 57516 0.0222 0.4181 -0.11340 2016 5 9 57517 0.0235 0.4194 -0.11440 2016 5 10 57518 0.0249 0.4206 -0.11534 2016 5 11 57519 0.0263 0.4218 -0.11621 2016 5 12 57520 0.0276 0.4230 -0.11706 2016 5 13 57521 0.0291 0.4242 -0.11796 2016 5 14 57522 0.0305 0.4253 -0.11892 2016 5 15 57523 0.0319 0.4265 -0.11997 2016 5 16 57524 0.0334 0.4276 -0.12104 2016 5 17 57525 0.0349 0.4287 -0.12210 2016 5 18 57526 0.0364 0.4298 -0.12318 2016 5 19 57527 0.0379 0.4308 -0.12423 2016 5 20 57528 0.0394 0.4319 -0.12526 2016 5 21 57529 0.0410 0.4329 -0.12616 2016 5 22 57530 0.0425 0.4338 -0.12692 2016 5 23 57531 0.0441 0.4348 -0.12760 2016 5 24 57532 0.0457 0.4358 -0.12826 2016 5 25 57533 0.0473 0.4367 -0.12897 2016 5 26 57534 0.0490 0.4376 -0.12973 2016 5 27 57535 0.0506 0.4384 -0.13051 2016 5 28 57536 0.0522 0.4393 -0.13138 2016 5 29 57537 0.0539 0.4401 -0.13239 2016 5 30 57538 0.0556 0.4409 -0.13357 2016 5 31 57539 0.0573 0.4417 -0.13485 2016 6 1 57540 0.0590 0.4424 -0.13613 2016 6 2 57541 0.0607 0.4432 -0.13738 2016 6 3 57542 0.0624 0.4439 -0.13848 2016 6 4 57543 0.0642 0.4445 -0.13936 2016 6 5 57544 0.0659 0.4452 -0.14002 2016 6 6 57545 0.0677 0.4458 -0.14053 2016 6 7 57546 0.0694 0.4464 -0.14096 2016 6 8 57547 0.0712 0.4470 -0.14131 2016 6 9 57548 0.0730 0.4475 -0.14185 2016 6 10 57549 0.0748 0.4480 -0.14233 2016 6 11 57550 0.0765 0.4485 -0.14292 2016 6 12 57551 0.0783 0.4490 -0.14357 2016 6 13 57552 0.0801 0.4494 -0.14414 2016 6 14 57553 0.0820 0.4499 -0.14480 2016 6 15 57554 0.0838 0.4503 -0.14542 2016 6 16 57555 0.0856 0.4506 -0.14597 2016 6 17 57556 0.0874 0.4510 -0.14648 2016 6 18 57557 0.0892 0.4513 -0.14686 2016 6 19 57558 0.0911 0.4516 -0.14716 2016 6 20 57559 0.0929 0.4518 -0.14735 2016 6 21 57560 0.0947 0.4520 -0.14744 2016 6 22 57561 0.0966 0.4522 -0.14756 2016 6 23 57562 0.0984 0.4524 -0.14779 2016 6 24 57563 0.1002 0.4526 -0.14810 2016 6 25 57564 0.1021 0.4527 -0.14847 2016 6 26 57565 0.1039 0.4528 -0.14889 2016 6 27 57566 0.1057 0.4529 -0.14937 2016 6 28 57567 0.1076 0.4529 -0.14997 2016 6 29 57568 0.1094 0.4529 -0.15055 2016 6 30 57569 0.1112 0.4529 -0.15115 2016 7 1 57570 0.1131 0.4529 -0.15166 2016 7 2 57571 0.1149 0.4528 -0.15202 2016 7 3 57572 0.1167 0.4527 -0.15222 2016 7 4 57573 0.1185 0.4526 -0.15232 2016 7 5 57574 0.1203 0.4524 -0.15241 2016 7 6 57575 0.1221 0.4523 -0.15259 2016 7 7 57576 0.1239 0.4521 -0.15279 2016 7 8 57577 0.1257 0.4518 -0.15298 2016 7 9 57578 0.1275 0.4516 -0.15323 2016 7 10 57579 0.1293 0.4513 -0.15343 2016 7 11 57580 0.1310 0.4510 -0.15366 2016 7 12 57581 0.1328 0.4507 -0.15384 2016 7 13 57582 0.1345 0.4503 -0.15395 2016 7 14 57583 0.1363 0.4499 -0.15404 2016 7 15 57584 0.1380 0.4495 -0.15409 2016 7 16 57585 0.1397 0.4491 -0.15411 2016 7 17 57586 0.1414 0.4486 -0.15410 2016 7 18 57587 0.1431 0.4482 -0.15410 2016 7 19 57588 0.1448 0.4477 -0.15405 2016 7 20 57589 0.1465 0.4471 -0.15405 2016 7 21 57590 0.1482 0.4466 -0.15420 2016 7 22 57591 0.1498 0.4460 -0.15455 2016 7 23 57592 0.1515 0.4454 -0.15506 2016 7 24 57593 0.1531 0.4447 -0.15565 2016 7 25 57594 0.1547 0.4441 -0.15634 2016 7 26 57595 0.1563 0.4434 -0.15702 2016 7 27 57596 0.1579 0.4427 -0.15758 2016 7 28 57597 0.1594 0.4420 -0.15801 2016 7 29 57598 0.1610 0.4412 -0.15834 2016 7 30 57599 0.1625 0.4405 -0.15853 2016 7 31 57600 0.1640 0.4397 -0.15860 2016 8 1 57601 0.1655 0.4388 -0.15855 2016 8 2 57602 0.1670 0.4380 -0.15850 2016 8 3 57603 0.1685 0.4371 -0.15852 2016 8 4 57604 0.1699 0.4363 -0.15859 2016 8 5 57605 0.1713 0.4354 -0.15870 2016 8 6 57606 0.1727 0.4344 -0.15879 2016 8 7 57607 0.1741 0.4335 -0.15888 2016 8 8 57608 0.1755 0.4325 -0.15902 2016 8 9 57609 0.1768 0.4315 -0.15917 2016 8 10 57610 0.1782 0.4305 -0.15928 2016 8 11 57611 0.1795 0.4295 -0.15932 2016 8 12 57612 0.1808 0.4285 -0.15926 2016 8 13 57613 0.1820 0.4274 -0.15914 2016 8 14 57614 0.1833 0.4263 -0.15905 2016 8 15 57615 0.1845 0.4252 -0.15898 2016 8 16 57616 0.1857 0.4241 -0.15896 2016 8 17 57617 0.1869 0.4229 -0.15901 2016 8 18 57618 0.1880 0.4218 -0.15917 2016 8 19 57619 0.1892 0.4206 -0.15954 2016 8 20 57620 0.1903 0.4194 -0.16009 2016 8 21 57621 0.1914 0.4182 -0.16078 2016 8 22 57622 0.1924 0.4170 -0.16146 2016 8 23 57623 0.1935 0.4158 -0.16214 2016 8 24 57624 0.1945 0.4145 -0.16271 2016 8 25 57625 0.1955 0.4132 -0.16316 2016 8 26 57626 0.1964 0.4120 -0.16358 2016 8 27 57627 0.1974 0.4107 -0.16385 2016 8 28 57628 0.1983 0.4093 -0.16410 2016 8 29 57629 0.1992 0.4080 -0.16437 2016 8 30 57630 0.2000 0.4067 -0.16471 2016 8 31 57631 0.2009 0.4053 -0.16517 2016 9 1 57632 0.2017 0.4040 -0.16566 2016 9 2 57633 0.2025 0.4026 -0.16610 2016 9 3 57634 0.2032 0.4012 -0.16660 2016 9 4 57635 0.2039 0.3998 -0.16716 2016 9 5 57636 0.2046 0.3984 -0.16769 2016 9 6 57637 0.2053 0.3970 -0.16818 2016 9 7 57638 0.2060 0.3955 -0.16861 2016 9 8 57639 0.2066 0.3941 -0.16900 2016 9 9 57640 0.2072 0.3926 -0.16936 2016 9 10 57641 0.2078 0.3912 -0.16972 2016 9 11 57642 0.2083 0.3897 -0.17020 2016 9 12 57643 0.2088 0.3882 -0.17067 2016 9 13 57644 0.2093 0.3868 -0.17121 2016 9 14 57645 0.2098 0.3853 -0.17187 2016 9 15 57646 0.2102 0.3838 -0.17273 2016 9 16 57647 0.2106 0.3823 -0.17375 2016 9 17 57648 0.2110 0.3807 -0.17500 2016 9 18 57649 0.2113 0.3792 -0.17636 2016 9 19 57650 0.2116 0.3777 -0.17772 2016 9 20 57651 0.2119 0.3762 -0.17901 2016 9 21 57652 0.2122 0.3747 -0.18019 2016 9 22 57653 0.2124 0.3731 -0.18119 2016 9 23 57654 0.2126 0.3716 -0.18199 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) 57260 -99.40 0.30 -13.23 0.05 57261 -99.20 0.30 -13.31 0.05 57262 -99.32 0.30 -13.47 0.05 57263 -99.57 0.30 -13.51 0.15 57264 -99.76 0.30 -13.38 0.02 57265 -99.87 0.30 -13.26 0.02 57266 -100.03 0.30 -13.23 0.02 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 57260 0.160 0.119 -0.138 0.050 57261 0.154 0.119 -0.134 0.050 57262 0.126 0.119 -0.128 0.050 57263 0.100 0.119 -0.142 0.150 57264 0.082 0.119 -0.161 0.020 57265 0.071 0.119 -0.201 0.020 57266 0.055 0.119 -0.239 0.020 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).