********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 27 September 2007 Vol. XX 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 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 9 21 54364 .16054 .00009 .22293 .00010 -.175493 .000014 7 9 22 54365 .15766 .00009 .22110 .00010 -.175943 .000012 7 9 23 54366 .15473 .00009 .21955 .00009 -.176602 .000013 7 9 24 54367 .15175 .00009 .21798 .00010 -.177548 .000014 7 9 25 54368 .14903 .00009 .21634 .00010 -.178815 .000013 7 9 26 54369 .14652 .00009 .21479 .00010 -.180406 .000048 7 9 27 54370 .14401 .00009 .21300 .00010 -.182071 .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 = .0519 + .0783 cos A - .0165 sin A + .0190 cos C - .1170 sin C y = .3482 - .0168 cos A - .0756 sin A - .1170 cos C - .0190 sin C UT1-UTC = -.2102 - .00092 (MJD - 54375) - (UT2-UT1) where A = 2*pi*(MJD-54370)/365.25 and C = 2*pi*(MJD-54370)/435. TAI-UTC(MJD 54371) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54370)**0.80 S t = 0.00025 (MJD-54370)**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 9 28 54371 0.1416 0.2115 -0.18357 2007 9 29 54372 0.1392 0.2098 -0.18484 2007 9 30 54373 0.1366 0.2082 -0.18582 2007 10 1 54374 0.1341 0.2068 -0.18653 2007 10 2 54375 0.1314 0.2055 -0.18704 2007 10 3 54376 0.1288 0.2043 -0.18746 2007 10 4 54377 0.1261 0.2032 -0.18792 2007 10 5 54378 0.1234 0.2021 -0.18852 2007 10 6 54379 0.1207 0.2011 -0.18937 2007 10 7 54380 0.1179 0.2001 -0.19043 2007 10 8 54381 0.1152 0.1991 -0.19166 2007 10 9 54382 0.1124 0.1982 -0.19299 2007 10 10 54383 0.1097 0.1973 -0.19435 2007 10 11 54384 0.1068 0.1966 -0.19566 2007 10 12 54385 0.1040 0.1958 -0.19686 2007 10 13 54386 0.1012 0.1951 -0.19789 2007 10 14 54387 0.0983 0.1945 -0.19874 2007 10 15 54388 0.0955 0.1939 -0.19944 2007 10 16 54389 0.0926 0.1933 -0.20003 2007 10 17 54390 0.0897 0.1928 -0.20058 2007 10 18 54391 0.0868 0.1924 -0.20114 2007 10 19 54392 0.0839 0.1919 -0.20179 2007 10 20 54393 0.0810 0.1916 -0.20261 2007 10 21 54394 0.0781 0.1913 -0.20366 2007 10 22 54395 0.0752 0.1910 -0.20499 2007 10 23 54396 0.0722 0.1908 -0.20659 2007 10 24 54397 0.0693 0.1906 -0.20838 2007 10 25 54398 0.0663 0.1904 -0.21019 2007 10 26 54399 0.0634 0.1904 -0.21185 2007 10 27 54400 0.0604 0.1903 -0.21322 2007 10 28 54401 0.0575 0.1903 -0.21426 2007 10 29 54402 0.0545 0.1904 -0.21503 2007 10 30 54403 0.0515 0.1904 -0.21566 2007 10 31 54404 0.0486 0.1906 -0.21631 2007 11 1 54405 0.0456 0.1908 -0.21709 2007 11 2 54406 0.0426 0.1910 -0.21806 2007 11 3 54407 0.0397 0.1913 -0.21922 2007 11 4 54408 0.0367 0.1916 -0.22053 2007 11 5 54409 0.0337 0.1920 -0.22192 2007 11 6 54410 0.0308 0.1924 -0.22333 2007 11 7 54411 0.0278 0.1928 -0.22469 2007 11 8 54412 0.0249 0.1933 -0.22594 2007 11 9 54413 0.0220 0.1939 -0.22704 2007 11 10 54414 0.0190 0.1944 -0.22796 2007 11 11 54415 0.0161 0.1951 -0.22872 2007 11 12 54416 0.0132 0.1958 -0.22936 2007 11 13 54417 0.0103 0.1965 -0.22992 2007 11 14 54418 0.0074 0.1972 -0.23049 2007 11 15 54419 0.0045 0.1981 -0.23113 2007 11 16 54420 0.0016 0.1989 -0.23194 2007 11 17 54421 -0.0013 0.1998 -0.23297 2007 11 18 54422 -0.0041 0.2007 -0.23427 2007 11 19 54423 -0.0069 0.2017 -0.23585 2007 11 20 54424 -0.0098 0.2027 -0.23763 2007 11 21 54425 -0.0126 0.2038 -0.23950 2007 11 22 54426 -0.0154 0.2049 -0.24132 2007 11 23 54427 -0.0181 0.2061 -0.24293 2007 11 24 54428 -0.0209 0.2073 -0.24424 2007 11 25 54429 -0.0236 0.2085 -0.24526 2007 11 26 54430 -0.0263 0.2098 -0.24607 2007 11 27 54431 -0.0290 0.2111 -0.24682 2007 11 28 54432 -0.0317 0.2125 -0.24765 2007 11 29 54433 -0.0344 0.2139 -0.24865 2007 11 30 54434 -0.0370 0.2153 -0.24983 2007 12 1 54435 -0.0396 0.2168 -0.25118 2007 12 2 54436 -0.0422 0.2183 -0.25261 2007 12 3 54437 -0.0448 0.2199 -0.25406 2007 12 4 54438 -0.0473 0.2215 -0.25546 2007 12 5 54439 -0.0499 0.2231 -0.25675 2007 12 6 54440 -0.0523 0.2248 -0.25788 2007 12 7 54441 -0.0548 0.2265 -0.25884 2007 12 8 54442 -0.0572 0.2282 -0.25962 2007 12 9 54443 -0.0597 0.2300 -0.26026 2007 12 10 54444 -0.0620 0.2319 -0.26080 2007 12 11 54445 -0.0644 0.2337 -0.26133 2007 12 12 54446 -0.0667 0.2356 -0.26192 2007 12 13 54447 -0.0690 0.2375 -0.26264 2007 12 14 54448 -0.0713 0.2395 -0.26356 2007 12 15 54449 -0.0735 0.2415 -0.26470 2007 12 16 54450 -0.0757 0.2435 -0.26607 2007 12 17 54451 -0.0778 0.2456 -0.26763 2007 12 18 54452 -0.0800 0.2477 -0.26929 2007 12 19 54453 -0.0821 0.2498 -0.27092 2007 12 20 54454 -0.0841 0.2520 -0.27240 2007 12 21 54455 -0.0862 0.2542 -0.27362 2007 12 22 54456 -0.0881 0.2564 -0.27456 2007 12 23 54457 -0.0901 0.2587 -0.27527 2007 12 24 54458 -0.0920 0.2609 -0.27587 2007 12 25 54459 -0.0939 0.2633 -0.27651 2007 12 26 54460 -0.0957 0.2656 -0.27730 2007 12 27 54461 -0.0975 0.2680 -0.27830 2007 12 28 54462 -0.0993 0.2704 -0.27949 2007 12 29 54463 -0.1010 0.2728 -0.28081 2007 12 30 54464 -0.1027 0.2752 -0.28217 2007 12 31 54465 -0.1043 0.2777 -0.28349 2008 1 1 54466 -0.1060 0.2802 -0.28470 2008 1 2 54467 -0.1075 0.2827 -0.28575 2008 1 3 54468 -0.1090 0.2853 -0.28661 2008 1 4 54469 -0.1105 0.2878 -0.28729 2008 1 5 54470 -0.1119 0.2904 -0.28779 2008 1 6 54471 -0.1133 0.2930 -0.28818 2008 1 7 54472 -0.1147 0.2957 -0.28853 2008 1 8 54473 -0.1160 0.2983 -0.28891 2008 1 9 54474 -0.1172 0.3010 -0.28940 2008 1 10 54475 -0.1185 0.3037 -0.29008 2008 1 11 54476 -0.1196 0.3064 -0.29097 2008 1 12 54477 -0.1207 0.3092 -0.29209 2008 1 13 54478 -0.1218 0.3119 -0.29340 2008 1 14 54479 -0.1229 0.3147 -0.29483 2008 1 15 54480 -0.1238 0.3175 -0.29624 2008 1 16 54481 -0.1248 0.3202 -0.29753 2008 1 17 54482 -0.1257 0.3231 -0.29860 2008 1 18 54483 -0.1265 0.3259 -0.29941 2008 1 19 54484 -0.1273 0.3287 -0.30001 2008 1 20 54485 -0.1281 0.3316 -0.30047 2008 1 21 54486 -0.1288 0.3344 -0.30093 2008 1 22 54487 -0.1294 0.3373 -0.30153 2008 1 23 54488 -0.1300 0.3402 -0.30233 2008 1 24 54489 -0.1306 0.3431 -0.30337 2008 1 25 54490 -0.1311 0.3460 -0.30457 2008 1 26 54491 -0.1316 0.3489 -0.30587 2008 1 27 54492 -0.1320 0.3518 -0.30717 2008 1 28 54493 -0.1323 0.3547 -0.30838 2008 1 29 54494 -0.1327 0.3576 -0.30945 2008 1 30 54495 -0.1329 0.3606 -0.31034 2008 1 31 54496 -0.1331 0.3635 -0.31104 2008 2 1 54497 -0.1333 0.3664 -0.31158 2008 2 2 54498 -0.1334 0.3694 -0.31200 2008 2 3 54499 -0.1335 0.3723 -0.31236 2008 2 4 54500 -0.1335 0.3752 -0.31274 2008 2 5 54501 -0.1335 0.3782 -0.31322 2008 2 6 54502 -0.1334 0.3811 -0.31390 2008 2 7 54503 -0.1332 0.3841 -0.31482 2008 2 8 54504 -0.1331 0.3870 -0.31601 2008 2 9 54505 -0.1328 0.3899 -0.31743 2008 2 10 54506 -0.1326 0.3929 -0.31900 2008 2 11 54507 -0.1322 0.3958 -0.32059 2008 2 12 54508 -0.1318 0.3987 -0.32207 2008 2 13 54509 -0.1314 0.4016 -0.32334 2008 2 14 54510 -0.1309 0.4045 -0.32435 2008 2 15 54511 -0.1304 0.4074 -0.32514 2008 2 16 54512 -0.1298 0.4103 -0.32578 2008 2 17 54513 -0.1292 0.4132 -0.32639 2008 2 18 54514 -0.1285 0.4161 -0.32711 2008 2 19 54515 -0.1278 0.4190 -0.32803 2008 2 20 54516 -0.1270 0.4218 -0.32918 2008 2 21 54517 -0.1262 0.4246 -0.33055 2008 2 22 54518 -0.1253 0.4275 -0.33207 2008 2 23 54519 -0.1244 0.4303 -0.33363 2008 2 24 54520 -0.1234 0.4331 -0.33516 2008 2 25 54521 -0.1224 0.4359 -0.33657 2008 2 26 54522 -0.1213 0.4387 -0.33781 2008 2 27 54523 -0.1202 0.4414 -0.33888 2008 2 28 54524 -0.1190 0.4441 -0.33977 2008 2 29 54525 -0.1178 0.4469 -0.34054 2008 3 1 54526 -0.1166 0.4496 -0.34122 2008 3 2 54527 -0.1153 0.4523 -0.34190 2008 3 3 54528 -0.1139 0.4549 -0.34266 2008 3 4 54529 -0.1125 0.4576 -0.34358 2008 3 5 54530 -0.1111 0.4602 -0.34474 2008 3 6 54531 -0.1096 0.4628 -0.34618 2008 3 7 54532 -0.1081 0.4654 -0.34789 2008 3 8 54533 -0.1065 0.4679 -0.34981 2008 3 9 54534 -0.1049 0.4705 -0.35181 2008 3 10 54535 -0.1033 0.4730 -0.35374 2008 3 11 54536 -0.1015 0.4754 -0.35547 2008 3 12 54537 -0.0998 0.4779 -0.35692 2008 3 13 54538 -0.0980 0.4803 -0.35811 2008 3 14 54539 -0.0962 0.4827 -0.35912 2008 3 15 54540 -0.0943 0.4851 -0.36005 2008 3 16 54541 -0.0924 0.4875 -0.36105 2008 3 17 54542 -0.0905 0.4898 -0.36220 2008 3 18 54543 -0.0885 0.4921 -0.36358 2008 3 19 54544 -0.0864 0.4943 -0.36516 2008 3 20 54545 -0.0844 0.4965 -0.36692 2008 3 21 54546 -0.0822 0.4987 -0.36875 2008 3 22 54547 -0.0801 0.5009 -0.37059 2008 3 23 54548 -0.0779 0.5030 -0.37233 2008 3 24 54549 -0.0757 0.5051 -0.37393 2008 3 25 54550 -0.0734 0.5072 -0.37535 2008 3 26 54551 -0.0711 0.5092 -0.37659 2008 3 27 54552 -0.0688 0.5112 -0.37769 2008 3 28 54553 -0.0664 0.5132 -0.37869 2008 3 29 54554 -0.0641 0.5151 -0.37966 2008 3 30 54555 -0.0616 0.5170 -0.38069 2008 3 31 54556 -0.0592 0.5189 -0.38184 2008 4 1 54557 -0.0567 0.5207 -0.38319 2008 4 2 54558 -0.0541 0.5224 -0.38480 2008 4 3 54559 -0.0516 0.5242 -0.38667 2008 4 4 54560 -0.0490 0.5259 -0.38878 2008 4 5 54561 -0.0464 0.5275 -0.39101 2008 4 6 54562 -0.0437 0.5292 -0.39322 2008 4 7 54563 -0.0410 0.5307 -0.39524 2008 4 8 54564 -0.0383 0.5323 -0.39695 2008 4 9 54565 -0.0356 0.5338 -0.39833 2008 4 10 54566 -0.0328 0.5352 -0.39943 2008 4 11 54567 -0.0301 0.5367 -0.40034 2008 4 12 54568 -0.0273 0.5380 -0.40122 2008 4 13 54569 -0.0244 0.5394 -0.40216 2008 4 14 54570 -0.0216 0.5407 -0.40323 2008 4 15 54571 -0.0187 0.5419 -0.40445 2008 4 16 54572 -0.0158 0.5431 -0.40579 2008 4 17 54573 -0.0129 0.5443 -0.40719 2008 4 18 54574 -0.0099 0.5454 -0.40858 2008 4 19 54575 -0.0070 0.5465 -0.40988 2008 4 20 54576 -0.0040 0.5475 -0.41101 2008 4 21 54577 -0.0010 0.5485 -0.41193 2008 4 22 54578 0.0020 0.5494 -0.41263 2008 4 23 54579 0.0051 0.5503 -0.41314 2008 4 24 54580 0.0081 0.5511 -0.41354 2008 4 25 54581 0.0112 0.5519 -0.41389 2008 4 26 54582 0.0143 0.5527 -0.41425 2008 4 27 54583 0.0173 0.5534 -0.41468 2008 4 28 54584 0.0204 0.5540 -0.41523 2008 4 29 54585 0.0236 0.5547 -0.41593 2008 4 30 54586 0.0267 0.5552 -0.41682 2008 5 1 54587 0.0298 0.5557 -0.41790 2008 5 2 54588 0.0330 0.5562 -0.41914 2008 5 3 54589 0.0361 0.5566 -0.42043 2008 5 4 54590 0.0393 0.5570 -0.42165 2008 5 5 54591 0.0425 0.5573 -0.42267 2008 5 6 54592 0.0456 0.5576 -0.42344 2008 5 7 54593 0.0488 0.5578 -0.42395 2008 5 8 54594 0.0520 0.5580 -0.42428 2008 5 9 54595 0.0552 0.5582 -0.42454 2008 5 10 54596 0.0584 0.5582 -0.42487 2008 5 11 54597 0.0616 0.5583 -0.42527 2008 5 12 54598 0.0648 0.5583 -0.42587 2008 5 13 54599 0.0680 0.5582 -0.42662 2008 5 14 54600 0.0712 0.5581 -0.42746 2008 5 15 54601 0.0744 0.5580 -0.42832 2008 5 16 54602 0.0776 0.5578 -0.42908 2008 5 17 54603 0.0808 0.5575 -0.42981 2008 5 18 54604 0.0840 0.5572 -0.43051 2008 5 19 54605 0.0871 0.5569 -0.43113 2008 5 20 54606 0.0903 0.5565 -0.43168 2008 5 21 54607 0.0935 0.5560 -0.43212 2008 5 22 54608 0.0967 0.5555 -0.43254 2008 5 23 54609 0.0998 0.5550 -0.43296 2008 5 24 54610 0.1030 0.5544 -0.43341 2008 5 25 54611 0.1061 0.5538 -0.43400 2008 5 26 54612 0.1092 0.5531 -0.43479 2008 5 27 54613 0.1124 0.5524 -0.43578 2008 5 28 54614 0.1155 0.5516 -0.43700 2008 5 29 54615 0.1186 0.5508 -0.43839 2008 5 30 54616 0.1216 0.5499 -0.43992 2008 5 31 54617 0.1247 0.5490 -0.44145 2008 6 1 54618 0.1277 0.5480 -0.44284 2008 6 2 54619 0.1308 0.5470 -0.44400 2008 6 3 54620 0.1338 0.5460 -0.44488 2008 6 4 54621 0.1368 0.5449 -0.44555 2008 6 5 54622 0.1398 0.5437 -0.44611 2008 6 6 54623 0.1427 0.5425 -0.44675 2008 6 7 54624 0.1457 0.5413 -0.44754 2008 6 8 54625 0.1486 0.5400 -0.44849 2008 6 9 54626 0.1515 0.5387 -0.44961 2008 6 10 54627 0.1544 0.5373 -0.45080 2008 6 11 54628 0.1572 0.5359 -0.45193 2008 6 12 54629 0.1601 0.5345 -0.45294 2008 6 13 54630 0.1629 0.5330 -0.45381 2008 6 14 54631 0.1657 0.5314 -0.45450 2008 6 15 54632 0.1684 0.5299 -0.45494 2008 6 16 54633 0.1712 0.5282 -0.45519 2008 6 17 54634 0.1739 0.5266 -0.45534 2008 6 18 54635 0.1765 0.5249 -0.45530 2008 6 19 54636 0.1792 0.5231 -0.45520 2008 6 20 54637 0.1818 0.5214 -0.45513 2008 6 21 54638 0.1844 0.5195 -0.45513 2008 6 22 54639 0.1869 0.5177 -0.45521 2008 6 23 54640 0.1895 0.5158 -0.45548 2008 6 24 54641 0.1920 0.5138 -0.45588 2008 6 25 54642 0.1944 0.5119 -0.45640 2008 6 26 54643 0.1968 0.5099 -0.45699 2008 6 27 54644 0.1992 0.5078 -0.45758 2008 6 28 54645 0.2016 0.5057 -0.45805 2008 6 29 54646 0.2039 0.5036 -0.45829 2008 6 30 54647 0.2062 0.5015 -0.45836 2008 7 1 54648 0.2084 0.4993 -0.45824 2008 7 2 54649 0.2107 0.4971 -0.45801 2008 7 3 54650 0.2128 0.4948 -0.45781 2008 7 4 54651 0.2150 0.4925 -0.45775 2008 7 5 54652 0.2171 0.4902 -0.45791 2008 7 6 54653 0.2191 0.4878 -0.45817 2008 7 7 54654 0.2211 0.4855 -0.45857 2008 7 8 54655 0.2231 0.4831 -0.45901 2008 7 9 54656 0.2250 0.4806 -0.45937 2008 7 10 54657 0.2269 0.4781 -0.45960 2008 7 11 54658 0.2288 0.4756 -0.45965 2008 7 12 54659 0.2306 0.4731 -0.45950 2008 7 13 54660 0.2324 0.4706 -0.45916 2008 7 14 54661 0.2341 0.4680 -0.45869 2008 7 15 54662 0.2358 0.4654 -0.45815 2008 7 16 54663 0.2374 0.4628 -0.45753 2008 7 17 54664 0.2390 0.4601 -0.45688 2008 7 18 54665 0.2405 0.4574 -0.45638 2008 7 19 54666 0.2420 0.4547 -0.45608 2008 7 20 54667 0.2435 0.4520 -0.45590 2008 7 21 54668 0.2449 0.4493 -0.45603 2008 7 22 54669 0.2463 0.4465 -0.45639 2008 7 23 54670 0.2476 0.4437 -0.45687 2008 7 24 54671 0.2488 0.4409 -0.45741 2008 7 25 54672 0.2500 0.4381 -0.45787 2008 7 26 54673 0.2512 0.4352 -0.45815 2008 7 27 54674 0.2523 0.4324 -0.45820 2008 7 28 54675 0.2534 0.4295 -0.45799 2008 7 29 54676 0.2544 0.4266 -0.45764 2008 7 30 54677 0.2554 0.4237 -0.45723 2008 7 31 54678 0.2563 0.4208 -0.45687 2008 8 1 54679 0.2572 0.4178 -0.45669 2008 8 2 54680 0.2580 0.4149 -0.45678 2008 8 3 54681 0.2588 0.4119 -0.45708 2008 8 4 54682 0.2595 0.4090 -0.45747 2008 8 5 54683 0.2602 0.4060 -0.45787 2008 8 6 54684 0.2608 0.4030 -0.45818 2008 8 7 54685 0.2614 0.4000 -0.45829 2008 8 8 54686 0.2619 0.3970 -0.45818 2008 8 9 54687 0.2623 0.3940 -0.45785 2008 8 10 54688 0.2628 0.3909 -0.45737 2008 8 11 54689 0.2631 0.3879 -0.45681 2008 8 12 54690 0.2634 0.3849 -0.45618 2008 8 13 54691 0.2637 0.3818 -0.45555 2008 8 14 54692 0.2639 0.3788 -0.45495 2008 8 15 54693 0.2640 0.3757 -0.45447 2008 8 16 54694 0.2641 0.3727 -0.45420 2008 8 17 54695 0.2642 0.3697 -0.45415 2008 8 18 54696 0.2642 0.3666 -0.45430 2008 8 19 54697 0.2641 0.3636 -0.45469 2008 8 20 54698 0.2640 0.3605 -0.45519 2008 8 21 54699 0.2639 0.3575 -0.45566 2008 8 22 54700 0.2636 0.3544 -0.45604 2008 8 23 54701 0.2634 0.3514 -0.45612 2008 8 24 54702 0.2631 0.3484 -0.45605 2008 8 25 54703 0.2627 0.3453 -0.45583 2008 8 26 54704 0.2623 0.3423 -0.45555 2008 8 27 54705 0.2618 0.3393 -0.45537 2008 8 28 54706 0.2613 0.3363 -0.45537 2008 8 29 54707 0.2607 0.3333 -0.45569 2008 8 30 54708 0.2601 0.3303 -0.45623 2008 8 31 54709 0.2594 0.3273 -0.45694 2008 9 1 54710 0.2587 0.3243 -0.45768 2008 9 2 54711 0.2579 0.3214 -0.45834 2008 9 3 54712 0.2571 0.3184 -0.45891 2008 9 4 54713 0.2562 0.3155 -0.45932 2008 9 5 54714 0.2552 0.3126 -0.45956 2008 9 6 54715 0.2543 0.3097 -0.45968 2008 9 7 54716 0.2532 0.3068 -0.45974 2008 9 8 54717 0.2521 0.3039 -0.45973 2008 9 9 54718 0.2510 0.3011 -0.45974 2008 9 10 54719 0.2498 0.2982 -0.45984 2008 9 11 54720 0.2486 0.2954 -0.46004 2008 9 12 54721 0.2473 0.2926 -0.46042 2008 9 13 54722 0.2460 0.2898 -0.46100 2008 9 14 54723 0.2446 0.2871 -0.46182 2008 9 15 54724 0.2432 0.2843 -0.46282 2008 9 16 54725 0.2417 0.2816 -0.46395 2008 9 17 54726 0.2402 0.2789 -0.46508 2008 9 18 54727 0.2387 0.2762 -0.46611 2008 9 19 54728 0.2371 0.2736 -0.46697 2008 9 20 54729 0.2354 0.2710 -0.46767 2008 9 21 54730 0.2337 0.2684 -0.46833 2008 9 22 54731 0.2320 0.2658 -0.46895 2008 9 23 54732 0.2302 0.2633 -0.46960 2008 9 24 54733 0.2284 0.2607 -0.47042 2008 9 25 54734 0.2265 0.2582 -0.47146 2008 9 26 54735 0.2246 0.2558 -0.47275 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) 54351 -68.32 .74 -6.76 .13 54352 -68.04 .23 -6.63 .11 54353 -67.81 .23 -6.36 .11 54354 -67.74 .33 -5.99 .34 54355 -67.85 .26 -5.66 .13 54356 -68.12 .26 -5.59 .13 54357 -68.50 .26 -5.79 .13 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54351 -0.093 0.294 -0.354 0.130 54352 -0.102 0.091 -0.324 0.110 54353 -0.112 0.091 -0.322 0.110 54354 -0.130 0.131 -0.334 0.340 54355 -0.155 0.103 -0.319 0.130 54356 -0.177 0.103 -0.310 0.130 54357 -0.194 0.103 -0.299 0.130 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.