********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 18 October 2007 Vol. XX No. 042 ______________________________________________________________________ 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 12 54385 .10020 .00009 .19504 .00009 -.196172 .000007 7 10 13 54386 .09749 .00009 .19425 .00009 -.197032 .000006 7 10 14 54387 .09483 .00009 .19354 .00009 -.197710 .000006 7 10 15 54388 .09198 .00009 .19297 .00009 -.198225 .000006 7 10 16 54389 .08890 .00009 .19254 .00009 -.198656 .000006 7 10 17 54390 .08586 .00009 .19211 .00009 -.199041 .000048 7 10 18 54391 .08300 .00009 .19176 .00009 -.199483 .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 = .0488 + .0670 cos A - .0535 sin A - .0231 cos C - .1092 sin C y = .3519 - .0519 cos A - .0664 sin A - .1092 cos C + .0231 sin C UT1-UTC = -.2221 - .00092 (MJD - 54399) - (UT2-UT1) where A = 2*pi*(MJD-54391)/365.25 and C = 2*pi*(MJD-54391)/435. TAI-UTC(MJD 54392) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54391)**0.80 S t = 0.00025 (MJD-54391)**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 19 54392 0.0801 0.1914 -0.20005 2007 10 20 54393 0.0772 0.1912 -0.20081 2007 10 21 54394 0.0744 0.1911 -0.20180 2007 10 22 54395 0.0716 0.1910 -0.20304 2007 10 23 54396 0.0687 0.1909 -0.20451 2007 10 24 54397 0.0657 0.1908 -0.20616 2007 10 25 54398 0.0628 0.1908 -0.20786 2007 10 26 54399 0.0598 0.1908 -0.20942 2007 10 27 54400 0.0569 0.1908 -0.21069 2007 10 28 54401 0.0540 0.1910 -0.21162 2007 10 29 54402 0.0511 0.1911 -0.21230 2007 10 30 54403 0.0482 0.1913 -0.21287 2007 10 31 54404 0.0452 0.1916 -0.21346 2007 11 1 54405 0.0423 0.1918 -0.21417 2007 11 2 54406 0.0394 0.1922 -0.21505 2007 11 3 54407 0.0365 0.1926 -0.21610 2007 11 4 54408 0.0336 0.1930 -0.21729 2007 11 5 54409 0.0307 0.1934 -0.21854 2007 11 6 54410 0.0278 0.1939 -0.21981 2007 11 7 54411 0.0249 0.1945 -0.22105 2007 11 8 54412 0.0220 0.1951 -0.22221 2007 11 9 54413 0.0191 0.1957 -0.22323 2007 11 10 54414 0.0162 0.1964 -0.22410 2007 11 11 54415 0.0133 0.1971 -0.22481 2007 11 12 54416 0.0105 0.1979 -0.22539 2007 11 13 54417 0.0076 0.1987 -0.22589 2007 11 14 54418 0.0048 0.1996 -0.22640 2007 11 15 54419 0.0020 0.2005 -0.22699 2007 11 16 54420 -0.0009 0.2014 -0.22774 2007 11 17 54421 -0.0037 0.2024 -0.22870 2007 11 18 54422 -0.0065 0.2034 -0.22991 2007 11 19 54423 -0.0092 0.2045 -0.23138 2007 11 20 54424 -0.0120 0.2056 -0.23305 2007 11 21 54425 -0.0147 0.2068 -0.23481 2007 11 22 54426 -0.0175 0.2080 -0.23651 2007 11 23 54427 -0.0202 0.2092 -0.23800 2007 11 24 54428 -0.0229 0.2105 -0.23919 2007 11 25 54429 -0.0255 0.2118 -0.24005 2007 11 26 54430 -0.0282 0.2132 -0.24070 2007 11 27 54431 -0.0308 0.2146 -0.24127 2007 11 28 54432 -0.0334 0.2160 -0.24192 2007 11 29 54433 -0.0360 0.2175 -0.24273 2007 11 30 54434 -0.0386 0.2190 -0.24373 2007 12 1 54435 -0.0411 0.2206 -0.24488 2007 12 2 54436 -0.0436 0.2222 -0.24612 2007 12 3 54437 -0.0461 0.2238 -0.24736 2007 12 4 54438 -0.0486 0.2255 -0.24854 2007 12 5 54439 -0.0511 0.2272 -0.24962 2007 12 6 54440 -0.0535 0.2290 -0.25054 2007 12 7 54441 -0.0559 0.2307 -0.25129 2007 12 8 54442 -0.0582 0.2326 -0.25187 2007 12 9 54443 -0.0606 0.2344 -0.25230 2007 12 10 54444 -0.0629 0.2363 -0.25263 2007 12 11 54445 -0.0651 0.2382 -0.25294 2007 12 12 54446 -0.0674 0.2402 -0.25329 2007 12 13 54447 -0.0696 0.2422 -0.25378 2007 12 14 54448 -0.0718 0.2442 -0.25447 2007 12 15 54449 -0.0739 0.2463 -0.25538 2007 12 16 54450 -0.0761 0.2484 -0.25654 2007 12 17 54451 -0.0781 0.2505 -0.25788 2007 12 18 54452 -0.0802 0.2527 -0.25934 2007 12 19 54453 -0.0822 0.2549 -0.26078 2007 12 20 54454 -0.0842 0.2571 -0.26207 2007 12 21 54455 -0.0861 0.2593 -0.26313 2007 12 22 54456 -0.0880 0.2616 -0.26392 2007 12 23 54457 -0.0899 0.2639 -0.26450 2007 12 24 54458 -0.0917 0.2663 -0.26499 2007 12 25 54459 -0.0935 0.2686 -0.26553 2007 12 26 54460 -0.0953 0.2710 -0.26623 2007 12 27 54461 -0.0970 0.2735 -0.26714 2007 12 28 54462 -0.0987 0.2759 -0.26825 2007 12 29 54463 -0.1003 0.2784 -0.26949 2007 12 30 54464 -0.1019 0.2809 -0.27078 2007 12 31 54465 -0.1035 0.2834 -0.27202 2008 1 1 54466 -0.1050 0.2859 -0.27315 2008 1 2 54467 -0.1065 0.2885 -0.27413 2008 1 3 54468 -0.1079 0.2911 -0.27494 2008 1 4 54469 -0.1093 0.2937 -0.27556 2008 1 5 54470 -0.1107 0.2963 -0.27602 2008 1 6 54471 -0.1120 0.2990 -0.27637 2008 1 7 54472 -0.1133 0.3017 -0.27669 2008 1 8 54473 -0.1145 0.3043 -0.27705 2008 1 9 54474 -0.1156 0.3071 -0.27753 2008 1 10 54475 -0.1168 0.3098 -0.27822 2008 1 11 54476 -0.1179 0.3125 -0.27915 2008 1 12 54477 -0.1189 0.3153 -0.28031 2008 1 13 54478 -0.1199 0.3181 -0.28168 2008 1 14 54479 -0.1209 0.3209 -0.28316 2008 1 15 54480 -0.1218 0.3237 -0.28465 2008 1 16 54481 -0.1226 0.3265 -0.28601 2008 1 17 54482 -0.1234 0.3293 -0.28717 2008 1 18 54483 -0.1242 0.3322 -0.28808 2008 1 19 54484 -0.1249 0.3350 -0.28878 2008 1 20 54485 -0.1256 0.3379 -0.28934 2008 1 21 54486 -0.1262 0.3408 -0.28991 2008 1 22 54487 -0.1268 0.3436 -0.29061 2008 1 23 54488 -0.1273 0.3465 -0.29152 2008 1 24 54489 -0.1278 0.3494 -0.29266 2008 1 25 54490 -0.1282 0.3524 -0.29397 2008 1 26 54491 -0.1286 0.3553 -0.29537 2008 1 27 54492 -0.1289 0.3582 -0.29677 2008 1 28 54493 -0.1292 0.3611 -0.29807 2008 1 29 54494 -0.1294 0.3641 -0.29924 2008 1 30 54495 -0.1296 0.3670 -0.30022 2008 1 31 54496 -0.1297 0.3699 -0.30103 2008 2 1 54497 -0.1298 0.3729 -0.30167 2008 2 2 54498 -0.1298 0.3758 -0.30219 2008 2 3 54499 -0.1298 0.3787 -0.30266 2008 2 4 54500 -0.1298 0.3817 -0.30307 2008 2 5 54501 -0.1297 0.3846 -0.30360 2008 2 6 54502 -0.1295 0.3876 -0.30431 2008 2 7 54503 -0.1293 0.3905 -0.30528 2008 2 8 54504 -0.1290 0.3934 -0.30652 2008 2 9 54505 -0.1287 0.3964 -0.30799 2008 2 10 54506 -0.1283 0.3993 -0.30960 2008 2 11 54507 -0.1279 0.4022 -0.31124 2008 2 12 54508 -0.1275 0.4051 -0.31277 2008 2 13 54509 -0.1270 0.4080 -0.31408 2008 2 14 54510 -0.1264 0.4109 -0.31513 2008 2 15 54511 -0.1258 0.4138 -0.31595 2008 2 16 54512 -0.1251 0.4167 -0.31662 2008 2 17 54513 -0.1244 0.4195 -0.31726 2008 2 18 54514 -0.1237 0.4224 -0.31800 2008 2 19 54515 -0.1229 0.4252 -0.31894 2008 2 20 54516 -0.1220 0.4281 -0.32011 2008 2 21 54517 -0.1211 0.4309 -0.32149 2008 2 22 54518 -0.1202 0.4337 -0.32302 2008 2 23 54519 -0.1192 0.4365 -0.32460 2008 2 24 54520 -0.1181 0.4393 -0.32613 2008 2 25 54521 -0.1171 0.4420 -0.32755 2008 2 26 54522 -0.1159 0.4448 -0.32879 2008 2 27 54523 -0.1147 0.4475 -0.32985 2008 2 28 54524 -0.1135 0.4502 -0.33073 2008 2 29 54525 -0.1122 0.4529 -0.33148 2008 3 1 54526 -0.1109 0.4556 -0.33214 2008 3 2 54527 -0.1095 0.4582 -0.33279 2008 3 3 54528 -0.1081 0.4608 -0.33352 2008 3 4 54529 -0.1067 0.4634 -0.33440 2008 3 5 54530 -0.1052 0.4660 -0.33552 2008 3 6 54531 -0.1036 0.4686 -0.33692 2008 3 7 54532 -0.1020 0.4711 -0.33858 2008 3 8 54533 -0.1004 0.4737 -0.34045 2008 3 9 54534 -0.0987 0.4761 -0.34240 2008 3 10 54535 -0.0970 0.4786 -0.34427 2008 3 11 54536 -0.0952 0.4810 -0.34594 2008 3 12 54537 -0.0934 0.4835 -0.34733 2008 3 13 54538 -0.0915 0.4858 -0.34845 2008 3 14 54539 -0.0897 0.4882 -0.34937 2008 3 15 54540 -0.0877 0.4905 -0.35022 2008 3 16 54541 -0.0857 0.4928 -0.35113 2008 3 17 54542 -0.0837 0.4951 -0.35220 2008 3 18 54543 -0.0817 0.4973 -0.35347 2008 3 19 54544 -0.0796 0.4995 -0.35496 2008 3 20 54545 -0.0775 0.5017 -0.35660 2008 3 21 54546 -0.0753 0.5038 -0.35832 2008 3 22 54547 -0.0731 0.5060 -0.36003 2008 3 23 54548 -0.0708 0.5080 -0.36164 2008 3 24 54549 -0.0686 0.5101 -0.36309 2008 3 25 54550 -0.0663 0.5121 -0.36435 2008 3 26 54551 -0.0639 0.5141 -0.36542 2008 3 27 54552 -0.0615 0.5160 -0.36633 2008 3 28 54553 -0.0591 0.5179 -0.36714 2008 3 29 54554 -0.0567 0.5198 -0.36790 2008 3 30 54555 -0.0542 0.5216 -0.36870 2008 3 31 54556 -0.0517 0.5234 -0.36961 2008 4 1 54557 -0.0491 0.5251 -0.37072 2008 4 2 54558 -0.0465 0.5268 -0.37208 2008 4 3 54559 -0.0439 0.5285 -0.37372 2008 4 4 54560 -0.0413 0.5301 -0.37560 2008 4 5 54561 -0.0386 0.5317 -0.37763 2008 4 6 54562 -0.0359 0.5333 -0.37966 2008 4 7 54563 -0.0332 0.5348 -0.38155 2008 4 8 54564 -0.0305 0.5363 -0.38317 2008 4 9 54565 -0.0277 0.5377 -0.38450 2008 4 10 54566 -0.0249 0.5391 -0.38558 2008 4 11 54567 -0.0221 0.5404 -0.38655 2008 4 12 54568 -0.0192 0.5417 -0.38753 2008 4 13 54569 -0.0163 0.5430 -0.38865 2008 4 14 54570 -0.0135 0.5442 -0.38997 2008 4 15 54571 -0.0105 0.5454 -0.39150 2008 4 16 54572 -0.0076 0.5465 -0.39320 2008 4 17 54573 -0.0046 0.5476 -0.39500 2008 4 18 54574 -0.0017 0.5486 -0.39682 2008 4 19 54575 0.0013 0.5496 -0.39859 2008 4 20 54576 0.0044 0.5506 -0.40025 2008 4 21 54577 0.0074 0.5515 -0.40177 2008 4 22 54578 0.0104 0.5523 -0.40312 2008 4 23 54579 0.0135 0.5531 -0.40434 2008 4 24 54580 0.0166 0.5539 -0.40547 2008 4 25 54581 0.0197 0.5546 -0.40655 2008 4 26 54582 0.0228 0.5553 -0.40765 2008 4 27 54583 0.0259 0.5559 -0.40881 2008 4 28 54584 0.0290 0.5565 -0.41010 2008 4 29 54585 0.0322 0.5570 -0.41156 2008 4 30 54586 0.0353 0.5575 -0.41320 2008 5 1 54587 0.0385 0.5579 -0.41503 2008 5 2 54588 0.0417 0.5583 -0.41698 2008 5 3 54589 0.0448 0.5587 -0.41892 2008 5 4 54590 0.0480 0.5589 -0.42073 2008 5 5 54591 0.0512 0.5592 -0.42226 2008 5 6 54592 0.0544 0.5594 -0.42345 2008 5 7 54593 0.0576 0.5595 -0.42433 2008 5 8 54594 0.0608 0.5596 -0.42501 2008 5 9 54595 0.0640 0.5597 -0.42566 2008 5 10 54596 0.0673 0.5597 -0.42641 2008 5 11 54597 0.0705 0.5596 -0.42735 2008 5 12 54598 0.0737 0.5595 -0.42851 2008 5 13 54599 0.0769 0.5594 -0.42983 2008 5 14 54600 0.0801 0.5592 -0.43125 2008 5 15 54601 0.0833 0.5589 -0.43267 2008 5 16 54602 0.0865 0.5587 -0.43400 2008 5 17 54603 0.0897 0.5583 -0.43514 2008 5 18 54604 0.0929 0.5579 -0.43603 2008 5 19 54605 0.0961 0.5575 -0.43664 2008 5 20 54606 0.0993 0.5570 -0.43695 2008 5 21 54607 0.1025 0.5565 -0.43703 2008 5 22 54608 0.1056 0.5559 -0.43694 2008 5 23 54609 0.1088 0.5553 -0.43678 2008 5 24 54610 0.1120 0.5546 -0.43667 2008 5 25 54611 0.1151 0.5539 -0.43669 2008 5 26 54612 0.1182 0.5531 -0.43687 2008 5 27 54613 0.1214 0.5523 -0.43726 2008 5 28 54614 0.1245 0.5514 -0.43788 2008 5 29 54615 0.1276 0.5505 -0.43869 2008 5 30 54616 0.1306 0.5495 -0.43959 2008 5 31 54617 0.1337 0.5485 -0.44053 2008 6 1 54618 0.1368 0.5475 -0.44139 2008 6 2 54619 0.1398 0.5464 -0.44201 2008 6 3 54620 0.1428 0.5453 -0.44226 2008 6 4 54621 0.1458 0.5441 -0.44220 2008 6 5 54622 0.1488 0.5428 -0.44199 2008 6 6 54623 0.1517 0.5416 -0.44173 2008 6 7 54624 0.1547 0.5402 -0.44159 2008 6 8 54625 0.1576 0.5389 -0.44169 2008 6 9 54626 0.1605 0.5375 -0.44203 2008 6 10 54627 0.1633 0.5360 -0.44249 2008 6 11 54628 0.1662 0.5345 -0.44298 2008 6 12 54629 0.1690 0.5330 -0.44340 2008 6 13 54630 0.1718 0.5314 -0.44367 2008 6 14 54631 0.1746 0.5298 -0.44376 2008 6 15 54632 0.1773 0.5281 -0.44362 2008 6 16 54633 0.1800 0.5264 -0.44317 2008 6 17 54634 0.1827 0.5247 -0.44254 2008 6 18 54635 0.1854 0.5229 -0.44178 2008 6 19 54636 0.1880 0.5210 -0.44094 2008 6 20 54637 0.1906 0.5192 -0.44015 2008 6 21 54638 0.1932 0.5173 -0.43946 2008 6 22 54639 0.1957 0.5153 -0.43896 2008 6 23 54640 0.1982 0.5134 -0.43871 2008 6 24 54641 0.2007 0.5113 -0.43868 2008 6 25 54642 0.2031 0.5093 -0.43883 2008 6 26 54643 0.2055 0.5072 -0.43906 2008 6 27 54644 0.2079 0.5051 -0.43928 2008 6 28 54645 0.2102 0.5029 -0.43932 2008 6 29 54646 0.2125 0.5007 -0.43915 2008 6 30 54647 0.2148 0.4985 -0.43875 2008 7 1 54648 0.2170 0.4962 -0.43813 2008 7 2 54649 0.2192 0.4939 -0.43741 2008 7 3 54650 0.2213 0.4916 -0.43667 2008 7 4 54651 0.2234 0.4892 -0.43620 2008 7 5 54652 0.2255 0.4868 -0.43609 2008 7 6 54653 0.2275 0.4844 -0.43634 2008 7 7 54654 0.2295 0.4819 -0.43685 2008 7 8 54655 0.2315 0.4794 -0.43747 2008 7 9 54656 0.2334 0.4769 -0.43811 2008 7 10 54657 0.2352 0.4744 -0.43863 2008 7 11 54658 0.2371 0.4718 -0.43896 2008 7 12 54659 0.2388 0.4692 -0.43910 2008 7 13 54660 0.2406 0.4666 -0.43909 2008 7 14 54661 0.2423 0.4639 -0.43892 2008 7 15 54662 0.2439 0.4613 -0.43864 2008 7 16 54663 0.2455 0.4586 -0.43834 2008 7 17 54664 0.2470 0.4558 -0.43810 2008 7 18 54665 0.2486 0.4531 -0.43800 2008 7 19 54666 0.2500 0.4503 -0.43808 2008 7 20 54667 0.2514 0.4475 -0.43838 2008 7 21 54668 0.2528 0.4447 -0.43892 2008 7 22 54669 0.2541 0.4419 -0.43966 2008 7 23 54670 0.2554 0.4390 -0.44052 2008 7 24 54671 0.2566 0.4362 -0.44144 2008 7 25 54672 0.2578 0.4333 -0.44228 2008 7 26 54673 0.2589 0.4304 -0.44291 2008 7 27 54674 0.2600 0.4275 -0.44332 2008 7 28 54675 0.2610 0.4245 -0.44348 2008 7 29 54676 0.2620 0.4216 -0.44344 2008 7 30 54677 0.2629 0.4186 -0.44334 2008 7 31 54678 0.2638 0.4156 -0.44337 2008 8 1 54679 0.2646 0.4126 -0.44361 2008 8 2 54680 0.2654 0.4096 -0.44406 2008 8 3 54681 0.2661 0.4066 -0.44475 2008 8 4 54682 0.2668 0.4036 -0.44561 2008 8 5 54683 0.2674 0.4006 -0.44641 2008 8 6 54684 0.2680 0.3975 -0.44708 2008 8 7 54685 0.2685 0.3945 -0.44759 2008 8 8 54686 0.2690 0.3914 -0.44786 2008 8 9 54687 0.2694 0.3883 -0.44785 2008 8 10 54688 0.2697 0.3853 -0.44767 2008 8 11 54689 0.2700 0.3822 -0.44732 2008 8 12 54690 0.2703 0.3791 -0.44686 2008 8 13 54691 0.2705 0.3760 -0.44639 2008 8 14 54692 0.2707 0.3730 -0.44602 2008 8 15 54693 0.2708 0.3699 -0.44579 2008 8 16 54694 0.2708 0.3668 -0.44577 2008 8 17 54695 0.2708 0.3637 -0.44606 2008 8 18 54696 0.2707 0.3606 -0.44661 2008 8 19 54697 0.2706 0.3575 -0.44736 2008 8 20 54698 0.2705 0.3544 -0.44819 2008 8 21 54699 0.2703 0.3514 -0.44899 2008 8 22 54700 0.2700 0.3483 -0.44961 2008 8 23 54701 0.2697 0.3452 -0.44992 2008 8 24 54702 0.2693 0.3421 -0.44998 2008 8 25 54703 0.2689 0.3391 -0.44989 2008 8 26 54704 0.2684 0.3360 -0.44972 2008 8 27 54705 0.2679 0.3330 -0.44964 2008 8 28 54706 0.2673 0.3299 -0.44974 2008 8 29 54707 0.2666 0.3269 -0.45012 2008 8 30 54708 0.2660 0.3239 -0.45073 2008 8 31 54709 0.2652 0.3209 -0.45157 2008 9 1 54710 0.2644 0.3179 -0.45253 2008 9 2 54711 0.2636 0.3149 -0.45341 2008 9 3 54712 0.2627 0.3120 -0.45411 2008 9 4 54713 0.2618 0.3090 -0.45467 2008 9 5 54714 0.2608 0.3061 -0.45504 2008 9 6 54715 0.2597 0.3031 -0.45517 2008 9 7 54716 0.2586 0.3002 -0.45524 2008 9 8 54717 0.2575 0.2973 -0.45530 2008 9 9 54718 0.2563 0.2945 -0.45536 2008 9 10 54719 0.2551 0.2916 -0.45553 2008 9 11 54720 0.2538 0.2888 -0.45585 2008 9 12 54721 0.2524 0.2860 -0.45636 2008 9 13 54722 0.2510 0.2832 -0.45711 2008 9 14 54723 0.2496 0.2804 -0.45806 2008 9 15 54724 0.2481 0.2777 -0.45923 2008 9 16 54725 0.2466 0.2749 -0.46047 2008 9 17 54726 0.2450 0.2722 -0.46164 2008 9 18 54727 0.2434 0.2696 -0.46265 2008 9 19 54728 0.2417 0.2669 -0.46347 2008 9 20 54729 0.2400 0.2643 -0.46403 2008 9 21 54730 0.2383 0.2617 -0.46437 2008 9 22 54731 0.2365 0.2591 -0.46463 2008 9 23 54732 0.2346 0.2566 -0.46493 2008 9 24 54733 0.2327 0.2541 -0.46536 2008 9 25 54734 0.2308 0.2516 -0.46598 2008 9 26 54735 0.2288 0.2491 -0.46682 2008 9 27 54736 0.2268 0.2467 -0.46787 2008 9 28 54737 0.2247 0.2443 -0.46908 2008 9 29 54738 0.2226 0.2419 -0.47028 2008 9 30 54739 0.2205 0.2396 -0.47135 2008 10 1 54740 0.2183 0.2373 -0.47221 2008 10 2 54741 0.2161 0.2350 -0.47281 2008 10 3 54742 0.2138 0.2328 -0.47321 2008 10 4 54743 0.2115 0.2306 -0.47343 2008 10 5 54744 0.2092 0.2285 -0.47352 2008 10 6 54745 0.2068 0.2263 -0.47367 2008 10 7 54746 0.2044 0.2242 -0.47391 2008 10 8 54747 0.2019 0.2222 -0.47430 2008 10 9 54748 0.1995 0.2202 -0.47491 2008 10 10 54749 0.1969 0.2182 -0.47567 2008 10 11 54750 0.1944 0.2163 -0.47673 2008 10 12 54751 0.1918 0.2144 -0.47801 2008 10 13 54752 0.1892 0.2125 -0.47945 2008 10 14 54753 0.1865 0.2107 -0.48094 2008 10 15 54754 0.1838 0.2089 -0.48236 2008 10 16 54755 0.1811 0.2072 -0.48364 2008 10 17 54756 0.1784 0.2055 -0.48464 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) 54372 -68.45 .17 -6.03 .34 54373 -68.35 .15 -6.09 .34 54374 -68.29 .15 -6.02 .34 54375 -68.28 .13 -5.96 .12 54376 -68.16 .16 -6.04 .34 54377 -67.86 .16 -6.14 .34 54378 -67.47 .16 -6.11 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54372 -0.221 0.068 -0.185 0.340 54373 -0.227 0.060 -0.221 0.340 54374 -0.211 0.060 -0.272 0.340 54375 -0.188 0.052 -0.280 0.120 54376 -0.168 0.064 -0.269 0.340 54377 -0.148 0.064 -0.248 0.340 54378 -0.124 0.064 -0.237 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.