********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 11 October 2007 Vol. XX No. 041 ______________________________________________________________________ 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 14 June 2007 at 0000 UTC Beginning 1 January 2006: TAI-UTC(BIPM) = 33.000 000 seconds ________________________________________________________________________ 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 7 10 5 54378 .12150 .00009 .20162 .00009 -.189359 .000013 7 10 6 54379 .11855 .00009 .20049 .00010 -.190085 .000012 7 10 7 54380 .11564 .00009 .19932 .00010 -.190957 .000012 7 10 8 54381 .11276 .00009 .19826 .00010 -.191937 .000010 7 10 9 54382 .10975 .00009 .19749 .00010 -.192985 .000037 7 10 10 54383 .10656 .00009 .19674 .00010 -.194071 .000048 7 10 11 54384 .10332 .00009 .19598 .00009 -.195157 .000057 _______________________________________________________________________ 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 = .0489 + .0726 cos A - .0420 sin A - .0098 cos C - .1131 sin C y = .3498 - .0408 cos A - .0712 sin A - .1131 cos C + .0098 sin C UT1-UTC = -.2189 - .00092 (MJD - 54392) - (UT2-UT1) where A = 2*pi*(MJD-54384)/365.25 and C = 2*pi*(MJD-54384)/435. TAI-UTC(MJD 54385) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54384)**0.80 S t = 0.00025 (MJD-54384)**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) 2007 10 12 54385 0.1002 0.1952 -0.19617 2007 10 13 54386 0.0971 0.1945 -0.19705 2007 10 14 54387 0.0940 0.1938 -0.19774 2007 10 15 54388 0.0910 0.1932 -0.19823 2007 10 16 54389 0.0881 0.1927 -0.19862 2007 10 17 54390 0.0851 0.1922 -0.19899 2007 10 18 54391 0.0822 0.1918 -0.19939 2007 10 19 54392 0.0792 0.1915 -0.19990 2007 10 20 54393 0.0762 0.1912 -0.20059 2007 10 21 54394 0.0732 0.1910 -0.20153 2007 10 22 54395 0.0702 0.1908 -0.20276 2007 10 23 54396 0.0672 0.1906 -0.20427 2007 10 24 54397 0.0643 0.1905 -0.20596 2007 10 25 54398 0.0613 0.1905 -0.20765 2007 10 26 54399 0.0583 0.1905 -0.20919 2007 10 27 54400 0.0554 0.1906 -0.21048 2007 10 28 54401 0.0524 0.1907 -0.21149 2007 10 29 54402 0.0495 0.1908 -0.21226 2007 10 30 54403 0.0465 0.1910 -0.21291 2007 10 31 54404 0.0435 0.1912 -0.21358 2007 11 1 54405 0.0406 0.1915 -0.21438 2007 11 2 54406 0.0376 0.1919 -0.21537 2007 11 3 54407 0.0347 0.1922 -0.21656 2007 11 4 54408 0.0317 0.1927 -0.21790 2007 11 5 54409 0.0288 0.1931 -0.21933 2007 11 6 54410 0.0259 0.1936 -0.22078 2007 11 7 54411 0.0230 0.1942 -0.22218 2007 11 8 54412 0.0200 0.1948 -0.22346 2007 11 9 54413 0.0171 0.1955 -0.22458 2007 11 10 54414 0.0142 0.1961 -0.22553 2007 11 11 54415 0.0114 0.1969 -0.22631 2007 11 12 54416 0.0085 0.1977 -0.22696 2007 11 13 54417 0.0056 0.1985 -0.22752 2007 11 14 54418 0.0028 0.1994 -0.22805 2007 11 15 54419 -0.0001 0.2003 -0.22864 2007 11 16 54420 -0.0029 0.2012 -0.22935 2007 11 17 54421 -0.0057 0.2022 -0.23027 2007 11 18 54422 -0.0085 0.2033 -0.23144 2007 11 19 54423 -0.0113 0.2044 -0.23286 2007 11 20 54424 -0.0141 0.2055 -0.23447 2007 11 21 54425 -0.0169 0.2067 -0.23617 2007 11 22 54426 -0.0196 0.2079 -0.23779 2007 11 23 54427 -0.0223 0.2091 -0.23920 2007 11 24 54428 -0.0250 0.2104 -0.24031 2007 11 25 54429 -0.0277 0.2118 -0.24114 2007 11 26 54430 -0.0304 0.2131 -0.24176 2007 11 27 54431 -0.0330 0.2146 -0.24234 2007 11 28 54432 -0.0356 0.2160 -0.24300 2007 11 29 54433 -0.0382 0.2175 -0.24383 2007 11 30 54434 -0.0408 0.2191 -0.24486 2007 12 1 54435 -0.0434 0.2206 -0.24604 2007 12 2 54436 -0.0459 0.2222 -0.24731 2007 12 3 54437 -0.0484 0.2239 -0.24859 2007 12 4 54438 -0.0509 0.2256 -0.24983 2007 12 5 54439 -0.0533 0.2273 -0.25095 2007 12 6 54440 -0.0558 0.2291 -0.25192 2007 12 7 54441 -0.0581 0.2309 -0.25272 2007 12 8 54442 -0.0605 0.2327 -0.25335 2007 12 9 54443 -0.0629 0.2346 -0.25383 2007 12 10 54444 -0.0652 0.2365 -0.25423 2007 12 11 54445 -0.0674 0.2385 -0.25460 2007 12 12 54446 -0.0697 0.2404 -0.25504 2007 12 13 54447 -0.0719 0.2425 -0.25562 2007 12 14 54448 -0.0741 0.2445 -0.25640 2007 12 15 54449 -0.0763 0.2466 -0.25743 2007 12 16 54450 -0.0784 0.2487 -0.25869 2007 12 17 54451 -0.0805 0.2508 -0.26015 2007 12 18 54452 -0.0825 0.2530 -0.26171 2007 12 19 54453 -0.0845 0.2552 -0.26325 2007 12 20 54454 -0.0865 0.2575 -0.26464 2007 12 21 54455 -0.0885 0.2597 -0.26579 2007 12 22 54456 -0.0904 0.2620 -0.26666 2007 12 23 54457 -0.0922 0.2644 -0.26730 2007 12 24 54458 -0.0941 0.2667 -0.26784 2007 12 25 54459 -0.0959 0.2691 -0.26842 2007 12 26 54460 -0.0976 0.2715 -0.26915 2007 12 27 54461 -0.0993 0.2739 -0.27009 2007 12 28 54462 -0.1010 0.2764 -0.27123 2007 12 29 54463 -0.1027 0.2789 -0.27250 2007 12 30 54464 -0.1043 0.2814 -0.27381 2007 12 31 54465 -0.1058 0.2840 -0.27508 2008 1 1 54466 -0.1073 0.2865 -0.27625 2008 1 2 54467 -0.1088 0.2891 -0.27727 2008 1 3 54468 -0.1102 0.2917 -0.27811 2008 1 4 54469 -0.1116 0.2943 -0.27878 2008 1 5 54470 -0.1130 0.2970 -0.27930 2008 1 6 54471 -0.1143 0.2996 -0.27972 2008 1 7 54472 -0.1155 0.3023 -0.28011 2008 1 8 54473 -0.1168 0.3050 -0.28054 2008 1 9 54474 -0.1179 0.3078 -0.28109 2008 1 10 54475 -0.1190 0.3105 -0.28184 2008 1 11 54476 -0.1201 0.3133 -0.28282 2008 1 12 54477 -0.1212 0.3161 -0.28404 2008 1 13 54478 -0.1221 0.3188 -0.28546 2008 1 14 54479 -0.1231 0.3217 -0.28697 2008 1 15 54480 -0.1240 0.3245 -0.28848 2008 1 16 54481 -0.1248 0.3273 -0.28986 2008 1 17 54482 -0.1256 0.3302 -0.29101 2008 1 18 54483 -0.1264 0.3330 -0.29191 2008 1 19 54484 -0.1271 0.3359 -0.29258 2008 1 20 54485 -0.1277 0.3388 -0.29313 2008 1 21 54486 -0.1283 0.3417 -0.29368 2008 1 22 54487 -0.1289 0.3446 -0.29436 2008 1 23 54488 -0.1294 0.3475 -0.29526 2008 1 24 54489 -0.1299 0.3504 -0.29639 2008 1 25 54490 -0.1303 0.3533 -0.29770 2008 1 26 54491 -0.1307 0.3563 -0.29911 2008 1 27 54492 -0.1310 0.3592 -0.30051 2008 1 28 54493 -0.1312 0.3621 -0.30175 2008 1 29 54494 -0.1315 0.3651 -0.30284 2008 1 30 54495 -0.1316 0.3680 -0.30377 2008 1 31 54496 -0.1317 0.3710 -0.30450 2008 2 1 54497 -0.1318 0.3739 -0.30508 2008 2 2 54498 -0.1318 0.3769 -0.30554 2008 2 3 54499 -0.1318 0.3798 -0.30593 2008 2 4 54500 -0.1317 0.3828 -0.30635 2008 2 5 54501 -0.1316 0.3857 -0.30688 2008 2 6 54502 -0.1314 0.3887 -0.30760 2008 2 7 54503 -0.1312 0.3916 -0.30856 2008 2 8 54504 -0.1309 0.3946 -0.30980 2008 2 9 54505 -0.1306 0.3975 -0.31127 2008 2 10 54506 -0.1302 0.4005 -0.31289 2008 2 11 54507 -0.1298 0.4034 -0.31453 2008 2 12 54508 -0.1293 0.4063 -0.31605 2008 2 13 54509 -0.1287 0.4092 -0.31736 2008 2 14 54510 -0.1282 0.4121 -0.31841 2008 2 15 54511 -0.1275 0.4150 -0.31923 2008 2 16 54512 -0.1269 0.4179 -0.31989 2008 2 17 54513 -0.1261 0.4208 -0.32053 2008 2 18 54514 -0.1254 0.4237 -0.32127 2008 2 19 54515 -0.1245 0.4265 -0.32219 2008 2 20 54516 -0.1237 0.4294 -0.32335 2008 2 21 54517 -0.1227 0.4322 -0.32472 2008 2 22 54518 -0.1218 0.4350 -0.32624 2008 2 23 54519 -0.1208 0.4378 -0.32780 2008 2 24 54520 -0.1197 0.4406 -0.32932 2008 2 25 54521 -0.1186 0.4434 -0.33071 2008 2 26 54522 -0.1174 0.4461 -0.33194 2008 2 27 54523 -0.1162 0.4488 -0.33297 2008 2 28 54524 -0.1150 0.4516 -0.33383 2008 2 29 54525 -0.1137 0.4543 -0.33456 2008 3 1 54526 -0.1123 0.4569 -0.33519 2008 3 2 54527 -0.1109 0.4596 -0.33582 2008 3 3 54528 -0.1095 0.4622 -0.33653 2008 3 4 54529 -0.1080 0.4648 -0.33739 2008 3 5 54530 -0.1065 0.4674 -0.33848 2008 3 6 54531 -0.1049 0.4700 -0.33986 2008 3 7 54532 -0.1033 0.4726 -0.34150 2008 3 8 54533 -0.1016 0.4751 -0.34334 2008 3 9 54534 -0.0999 0.4776 -0.34526 2008 3 10 54535 -0.0982 0.4800 -0.34711 2008 3 11 54536 -0.0964 0.4825 -0.34875 2008 3 12 54537 -0.0945 0.4849 -0.35012 2008 3 13 54538 -0.0927 0.4873 -0.35121 2008 3 14 54539 -0.0907 0.4896 -0.35212 2008 3 15 54540 -0.0888 0.4920 -0.35295 2008 3 16 54541 -0.0868 0.4943 -0.35385 2008 3 17 54542 -0.0847 0.4965 -0.35490 2008 3 18 54543 -0.0827 0.4988 -0.35617 2008 3 19 54544 -0.0806 0.5010 -0.35765 2008 3 20 54545 -0.0784 0.5032 -0.35930 2008 3 21 54546 -0.0762 0.5053 -0.36103 2008 3 22 54547 -0.0740 0.5074 -0.36275 2008 3 23 54548 -0.0717 0.5095 -0.36438 2008 3 24 54549 -0.0694 0.5115 -0.36586 2008 3 25 54550 -0.0671 0.5135 -0.36715 2008 3 26 54551 -0.0647 0.5155 -0.36826 2008 3 27 54552 -0.0623 0.5175 -0.36922 2008 3 28 54553 -0.0598 0.5194 -0.37007 2008 3 29 54554 -0.0574 0.5212 -0.37088 2008 3 30 54555 -0.0549 0.5230 -0.37173 2008 3 31 54556 -0.0523 0.5248 -0.37270 2008 4 1 54557 -0.0498 0.5266 -0.37387 2008 4 2 54558 -0.0472 0.5283 -0.37530 2008 4 3 54559 -0.0445 0.5300 -0.37700 2008 4 4 54560 -0.0419 0.5316 -0.37896 2008 4 5 54561 -0.0392 0.5332 -0.38106 2008 4 6 54562 -0.0364 0.5347 -0.38318 2008 4 7 54563 -0.0337 0.5362 -0.38516 2008 4 8 54564 -0.0309 0.5377 -0.38688 2008 4 9 54565 -0.0281 0.5391 -0.38832 2008 4 10 54566 -0.0253 0.5405 -0.38953 2008 4 11 54567 -0.0225 0.5419 -0.39063 2008 4 12 54568 -0.0196 0.5432 -0.39176 2008 4 13 54569 -0.0167 0.5444 -0.39305 2008 4 14 54570 -0.0138 0.5456 -0.39456 2008 4 15 54571 -0.0108 0.5468 -0.39630 2008 4 16 54572 -0.0079 0.5479 -0.39823 2008 4 17 54573 -0.0049 0.5490 -0.40027 2008 4 18 54574 -0.0019 0.5500 -0.40233 2008 4 19 54575 0.0011 0.5510 -0.40434 2008 4 20 54576 0.0042 0.5519 -0.40619 2008 4 21 54577 0.0072 0.5528 -0.40784 2008 4 22 54578 0.0103 0.5537 -0.40926 2008 4 23 54579 0.0134 0.5545 -0.41046 2008 4 24 54580 0.0165 0.5552 -0.41146 2008 4 25 54581 0.0196 0.5559 -0.41232 2008 4 26 54582 0.0227 0.5566 -0.41313 2008 4 27 54583 0.0259 0.5572 -0.41396 2008 4 28 54584 0.0290 0.5578 -0.41490 2008 4 29 54585 0.0322 0.5583 -0.41603 2008 4 30 54586 0.0354 0.5588 -0.41740 2008 5 1 54587 0.0386 0.5592 -0.41901 2008 5 2 54588 0.0418 0.5596 -0.42080 2008 5 3 54589 0.0450 0.5599 -0.42266 2008 5 4 54590 0.0482 0.5602 -0.42442 2008 5 5 54591 0.0514 0.5604 -0.42593 2008 5 6 54592 0.0546 0.5606 -0.42709 2008 5 7 54593 0.0578 0.5607 -0.42788 2008 5 8 54594 0.0610 0.5608 -0.42841 2008 5 9 54595 0.0643 0.5609 -0.42881 2008 5 10 54596 0.0675 0.5608 -0.42924 2008 5 11 54597 0.0707 0.5608 -0.42982 2008 5 12 54598 0.0740 0.5607 -0.43058 2008 5 13 54599 0.0772 0.5605 -0.43149 2008 5 14 54600 0.0804 0.5603 -0.43248 2008 5 15 54601 0.0837 0.5600 -0.43348 2008 5 16 54602 0.0869 0.5597 -0.43441 2008 5 17 54603 0.0901 0.5594 -0.43523 2008 5 18 54604 0.0933 0.5590 -0.43592 2008 5 19 54605 0.0965 0.5585 -0.43643 2008 5 20 54606 0.0997 0.5580 -0.43668 2008 5 21 54607 0.1029 0.5575 -0.43670 2008 5 22 54608 0.1061 0.5569 -0.43658 2008 5 23 54609 0.1093 0.5563 -0.43635 2008 5 24 54610 0.1125 0.5556 -0.43611 2008 5 25 54611 0.1156 0.5548 -0.43602 2008 5 26 54612 0.1188 0.5540 -0.43617 2008 5 27 54613 0.1219 0.5532 -0.43655 2008 5 28 54614 0.1250 0.5523 -0.43716 2008 5 29 54615 0.1281 0.5514 -0.43796 2008 5 30 54616 0.1312 0.5504 -0.43886 2008 5 31 54617 0.1343 0.5494 -0.43975 2008 6 1 54618 0.1373 0.5483 -0.44045 2008 6 2 54619 0.1404 0.5472 -0.44079 2008 6 3 54620 0.1434 0.5461 -0.44082 2008 6 4 54621 0.1464 0.5449 -0.44059 2008 6 5 54622 0.1494 0.5436 -0.44022 2008 6 6 54623 0.1524 0.5423 -0.43991 2008 6 7 54624 0.1553 0.5410 -0.43975 2008 6 8 54625 0.1582 0.5396 -0.43982 2008 6 9 54626 0.1611 0.5382 -0.44011 2008 6 10 54627 0.1640 0.5367 -0.44052 2008 6 11 54628 0.1669 0.5352 -0.44096 2008 6 12 54629 0.1697 0.5336 -0.44128 2008 6 13 54630 0.1725 0.5320 -0.44143 2008 6 14 54631 0.1753 0.5304 -0.44130 2008 6 15 54632 0.1780 0.5287 -0.44098 2008 6 16 54633 0.1808 0.5270 -0.44048 2008 6 17 54634 0.1835 0.5252 -0.43982 2008 6 18 54635 0.1861 0.5234 -0.43909 2008 6 19 54636 0.1888 0.5216 -0.43831 2008 6 20 54637 0.1914 0.5197 -0.43769 2008 6 21 54638 0.1939 0.5177 -0.43732 2008 6 22 54639 0.1965 0.5158 -0.43725 2008 6 23 54640 0.1990 0.5138 -0.43748 2008 6 24 54641 0.2014 0.5117 -0.43797 2008 6 25 54642 0.2039 0.5097 -0.43870 2008 6 26 54643 0.2063 0.5076 -0.43955 2008 6 27 54644 0.2087 0.5054 -0.44040 2008 6 28 54645 0.2110 0.5032 -0.44116 2008 6 29 54646 0.2133 0.5010 -0.44177 2008 6 30 54647 0.2156 0.4988 -0.44212 2008 7 1 54648 0.2178 0.4965 -0.44225 2008 7 2 54649 0.2200 0.4941 -0.44226 2008 7 3 54650 0.2221 0.4918 -0.44230 2008 7 4 54651 0.2242 0.4894 -0.44251 2008 7 5 54652 0.2263 0.4870 -0.44296 2008 7 6 54653 0.2283 0.4845 -0.44364 2008 7 7 54654 0.2303 0.4821 -0.44450 2008 7 8 54655 0.2322 0.4796 -0.44541 2008 7 9 54656 0.2341 0.4770 -0.44627 2008 7 10 54657 0.2360 0.4745 -0.44703 2008 7 11 54658 0.2378 0.4719 -0.44760 2008 7 12 54659 0.2396 0.4692 -0.44792 2008 7 13 54660 0.2413 0.4666 -0.44805 2008 7 14 54661 0.2430 0.4639 -0.44799 2008 7 15 54662 0.2446 0.4612 -0.44776 2008 7 16 54663 0.2462 0.4585 -0.44745 2008 7 17 54664 0.2478 0.4558 -0.44719 2008 7 18 54665 0.2493 0.4530 -0.44704 2008 7 19 54666 0.2507 0.4502 -0.44700 2008 7 20 54667 0.2521 0.4474 -0.44719 2008 7 21 54668 0.2535 0.4446 -0.44766 2008 7 22 54669 0.2548 0.4417 -0.44823 2008 7 23 54670 0.2561 0.4389 -0.44889 2008 7 24 54671 0.2573 0.4360 -0.44958 2008 7 25 54672 0.2584 0.4331 -0.45016 2008 7 26 54673 0.2596 0.4301 -0.45048 2008 7 27 54674 0.2606 0.4272 -0.45059 2008 7 28 54675 0.2616 0.4242 -0.45042 2008 7 29 54676 0.2626 0.4213 -0.45004 2008 7 30 54677 0.2635 0.4183 -0.44961 2008 7 31 54678 0.2644 0.4153 -0.44928 2008 8 1 54679 0.2652 0.4123 -0.44915 2008 8 2 54680 0.2660 0.4092 -0.44924 2008 8 3 54681 0.2667 0.4062 -0.44964 2008 8 4 54682 0.2673 0.4032 -0.45020 2008 8 5 54683 0.2679 0.4001 -0.45080 2008 8 6 54684 0.2685 0.3971 -0.45133 2008 8 7 54685 0.2690 0.3940 -0.45170 2008 8 8 54686 0.2694 0.3909 -0.45187 2008 8 9 54687 0.2698 0.3878 -0.45173 2008 8 10 54688 0.2702 0.3847 -0.45140 2008 8 11 54689 0.2705 0.3816 -0.45095 2008 8 12 54690 0.2707 0.3785 -0.45043 2008 8 13 54691 0.2709 0.3754 -0.44992 2008 8 14 54692 0.2710 0.3723 -0.44953 2008 8 15 54693 0.2711 0.3692 -0.44931 2008 8 16 54694 0.2712 0.3661 -0.44931 2008 8 17 54695 0.2711 0.3630 -0.44959 2008 8 18 54696 0.2711 0.3599 -0.45014 2008 8 19 54697 0.2709 0.3568 -0.45080 2008 8 20 54698 0.2707 0.3537 -0.45147 2008 8 21 54699 0.2705 0.3506 -0.45213 2008 8 22 54700 0.2702 0.3475 -0.45266 2008 8 23 54701 0.2699 0.3444 -0.45291 2008 8 24 54702 0.2695 0.3413 -0.45301 2008 8 25 54703 0.2690 0.3383 -0.45302 2008 8 26 54704 0.2685 0.3352 -0.45298 2008 8 27 54705 0.2680 0.3321 -0.45304 2008 8 28 54706 0.2674 0.3291 -0.45329 2008 8 29 54707 0.2667 0.3261 -0.45378 2008 8 30 54708 0.2660 0.3230 -0.45451 2008 8 31 54709 0.2653 0.3200 -0.45538 2008 9 1 54710 0.2645 0.3170 -0.45634 2008 9 2 54711 0.2636 0.3140 -0.45722 2008 9 3 54712 0.2627 0.3110 -0.45791 2008 9 4 54713 0.2617 0.3080 -0.45839 2008 9 5 54714 0.2607 0.3051 -0.45869 2008 9 6 54715 0.2596 0.3022 -0.45879 2008 9 7 54716 0.2585 0.2992 -0.45873 2008 9 8 54717 0.2574 0.2963 -0.45861 2008 9 9 54718 0.2561 0.2934 -0.45848 2008 9 10 54719 0.2549 0.2906 -0.45841 2008 9 11 54720 0.2536 0.2877 -0.45846 2008 9 12 54721 0.2522 0.2849 -0.45870 2008 9 13 54722 0.2508 0.2821 -0.45919 2008 9 14 54723 0.2493 0.2793 -0.45997 2008 9 15 54724 0.2478 0.2766 -0.46095 2008 9 16 54725 0.2463 0.2738 -0.46200 2008 9 17 54726 0.2447 0.2711 -0.46299 2008 9 18 54727 0.2430 0.2684 -0.46379 2008 9 19 54728 0.2413 0.2658 -0.46436 2008 9 20 54729 0.2396 0.2631 -0.46468 2008 9 21 54730 0.2378 0.2605 -0.46479 2008 9 22 54731 0.2360 0.2579 -0.46489 2008 9 23 54732 0.2341 0.2554 -0.46507 2008 9 24 54733 0.2322 0.2529 -0.46545 2008 9 25 54734 0.2302 0.2504 -0.46609 2008 9 26 54735 0.2282 0.2479 -0.46690 2008 9 27 54736 0.2262 0.2455 -0.46797 2008 9 28 54737 0.2241 0.2431 -0.46916 2008 9 29 54738 0.2219 0.2407 -0.47035 2008 9 30 54739 0.2198 0.2384 -0.47146 2008 10 1 54740 0.2176 0.2361 -0.47241 2008 10 2 54741 0.2153 0.2338 -0.47322 2008 10 3 54742 0.2130 0.2315 -0.47381 2008 10 4 54743 0.2107 0.2293 -0.47423 2008 10 5 54744 0.2083 0.2272 -0.47451 2008 10 6 54745 0.2059 0.2250 -0.47472 2008 10 7 54746 0.2035 0.2230 -0.47500 2008 10 8 54747 0.2010 0.2209 -0.47542 2008 10 9 54748 0.1985 0.2189 -0.47606 2008 10 10 54749 0.1960 0.2169 -0.47697 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) 54365 -67.92 .30 -6.56 .34 54366 -67.85 .33 -6.40 .34 54367 -67.94 .33 -6.35 .34 54368 -68.08 .47 -6.28 .34 54369 -68.23 .31 -6.09 .34 54370 -68.39 .31 -5.91 .34 54371 -68.51 .31 -5.92 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54365 -0.146 0.119 -0.259 0.340 54366 -0.146 0.131 -0.254 0.340 54367 -0.163 0.131 -0.263 0.340 54368 -0.186 0.187 -0.277 0.340 54369 -0.208 0.123 -0.277 0.340 54370 -0.217 0.123 -0.252 0.340 54371 -0.226 0.123 -0.221 0.340 The IERS Conventions recommended software to predict celestial pole offsets is available at ftp://maia.usno.navy.mil/conventions/chapter5/ ceppred.f and software for the calculation of the dX and dY with respect to IAU2000A Nutation/Precession Theory can be found at the web site in section chapter 5.