********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 6 December 2007 Vol. XX No. 049 ______________________________________________________________________ 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 11 30 54434 -.02866 .00010 .20955 .00010 -.244080 .000007 7 12 1 54435 -.02962 .00009 .21108 .00010 -.245564 .000007 7 12 2 54436 -.03068 .00009 .21263 .00009 -.247134 .000008 7 12 3 54437 -.03205 .00009 .21422 .00010 -.248741 .000008 7 12 4 54438 -.03403 .00010 .21579 .00010 -.250237 .000007 7 12 5 54439 -.03673 .00009 .21718 .00009 -.251554 .000048 7 12 6 54440 -.03963 .00009 .21857 .00009 -.252661 .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 = .0619 - .0099 cos A - .1032 sin A - .0860 cos C - .0462 sin C y = .3585 - .0977 cos A + .0068 sin A - .0462 cos C + .0860 sin C UT1-UTC = -.2550 - .00089 (MJD - 54448) - (UT2-UT1) where A = 2*pi*(MJD-54440)/365.25 and C = 2*pi*(MJD-54440)/435. TAI-UTC(MJD 54441) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54440)**0.80 S t = 0.00025 (MJD-54440)**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 12 7 54441 -0.0424 0.2199 -0.25352 2007 12 8 54442 -0.0450 0.2215 -0.25414 2007 12 9 54443 -0.0473 0.2231 -0.25455 2007 12 10 54444 -0.0495 0.2248 -0.25480 2007 12 11 54445 -0.0517 0.2265 -0.25500 2007 12 12 54446 -0.0538 0.2283 -0.25524 2007 12 13 54447 -0.0560 0.2301 -0.25561 2007 12 14 54448 -0.0582 0.2319 -0.25617 2007 12 15 54449 -0.0604 0.2338 -0.25695 2007 12 16 54450 -0.0626 0.2357 -0.25796 2007 12 17 54451 -0.0648 0.2377 -0.25918 2007 12 18 54452 -0.0669 0.2397 -0.26056 2007 12 19 54453 -0.0690 0.2417 -0.26198 2007 12 20 54454 -0.0710 0.2438 -0.26333 2007 12 21 54455 -0.0730 0.2459 -0.26448 2007 12 22 54456 -0.0750 0.2481 -0.26539 2007 12 23 54457 -0.0769 0.2502 -0.26610 2007 12 24 54458 -0.0789 0.2524 -0.26672 2007 12 25 54459 -0.0807 0.2547 -0.26742 2007 12 26 54460 -0.0826 0.2570 -0.26828 2007 12 27 54461 -0.0844 0.2593 -0.26933 2007 12 28 54462 -0.0862 0.2616 -0.27055 2007 12 29 54463 -0.0879 0.2639 -0.27186 2007 12 30 54464 -0.0896 0.2663 -0.27317 2007 12 31 54465 -0.0913 0.2687 -0.27440 2008 1 1 54466 -0.0929 0.2712 -0.27548 2008 1 2 54467 -0.0945 0.2736 -0.27639 2008 1 3 54468 -0.0960 0.2761 -0.27707 2008 1 4 54469 -0.0975 0.2786 -0.27753 2008 1 5 54470 -0.0990 0.2811 -0.27782 2008 1 6 54471 -0.1004 0.2837 -0.27798 2008 1 7 54472 -0.1018 0.2863 -0.27808 2008 1 8 54473 -0.1031 0.2889 -0.27821 2008 1 9 54474 -0.1044 0.2915 -0.27845 2008 1 10 54475 -0.1056 0.2941 -0.27887 2008 1 11 54476 -0.1068 0.2968 -0.27953 2008 1 12 54477 -0.1080 0.2995 -0.28043 2008 1 13 54478 -0.1091 0.3022 -0.28153 2008 1 14 54479 -0.1102 0.3049 -0.28273 2008 1 15 54480 -0.1112 0.3076 -0.28392 2008 1 16 54481 -0.1122 0.3103 -0.28499 2008 1 17 54482 -0.1131 0.3131 -0.28583 2008 1 18 54483 -0.1140 0.3159 -0.28641 2008 1 19 54484 -0.1149 0.3186 -0.28678 2008 1 20 54485 -0.1157 0.3214 -0.28703 2008 1 21 54486 -0.1164 0.3243 -0.28729 2008 1 22 54487 -0.1172 0.3271 -0.28770 2008 1 23 54488 -0.1178 0.3299 -0.28833 2008 1 24 54489 -0.1184 0.3328 -0.28918 2008 1 25 54490 -0.1190 0.3356 -0.29023 2008 1 26 54491 -0.1195 0.3385 -0.29138 2008 1 27 54492 -0.1200 0.3413 -0.29253 2008 1 28 54493 -0.1204 0.3442 -0.29360 2008 1 29 54494 -0.1208 0.3471 -0.29454 2008 1 30 54495 -0.1211 0.3500 -0.29530 2008 1 31 54496 -0.1214 0.3529 -0.29589 2008 2 1 54497 -0.1217 0.3558 -0.29631 2008 2 2 54498 -0.1218 0.3587 -0.29662 2008 2 3 54499 -0.1220 0.3616 -0.29688 2008 2 4 54500 -0.1221 0.3645 -0.29716 2008 2 5 54501 -0.1221 0.3674 -0.29755 2008 2 6 54502 -0.1221 0.3703 -0.29812 2008 2 7 54503 -0.1220 0.3732 -0.29893 2008 2 8 54504 -0.1219 0.3761 -0.30001 2008 2 9 54505 -0.1218 0.3790 -0.30131 2008 2 10 54506 -0.1216 0.3819 -0.30276 2008 2 11 54507 -0.1213 0.3848 -0.30423 2008 2 12 54508 -0.1210 0.3877 -0.30559 2008 2 13 54509 -0.1207 0.3906 -0.30673 2008 2 14 54510 -0.1203 0.3935 -0.30761 2008 2 15 54511 -0.1198 0.3964 -0.30826 2008 2 16 54512 -0.1193 0.3992 -0.30876 2008 2 17 54513 -0.1188 0.4021 -0.30923 2008 2 18 54514 -0.1182 0.4050 -0.30982 2008 2 19 54515 -0.1176 0.4078 -0.31060 2008 2 20 54516 -0.1169 0.4106 -0.31161 2008 2 21 54517 -0.1162 0.4135 -0.31285 2008 2 22 54518 -0.1154 0.4163 -0.31423 2008 2 23 54519 -0.1146 0.4191 -0.31566 2008 2 24 54520 -0.1137 0.4219 -0.31705 2008 2 25 54521 -0.1128 0.4246 -0.31832 2008 2 26 54522 -0.1118 0.4274 -0.31943 2008 2 27 54523 -0.1108 0.4302 -0.32035 2008 2 28 54524 -0.1097 0.4329 -0.32111 2008 2 29 54525 -0.1086 0.4356 -0.32174 2008 3 1 54526 -0.1074 0.4383 -0.32229 2008 3 2 54527 -0.1062 0.4410 -0.32284 2008 3 3 54528 -0.1050 0.4436 -0.32347 2008 3 4 54529 -0.1037 0.4463 -0.32427 2008 3 5 54530 -0.1024 0.4489 -0.32531 2008 3 6 54531 -0.1010 0.4515 -0.32664 2008 3 7 54532 -0.0996 0.4541 -0.32826 2008 3 8 54533 -0.0981 0.4566 -0.33008 2008 3 9 54534 -0.0966 0.4592 -0.33199 2008 3 10 54535 -0.0950 0.4617 -0.33384 2008 3 11 54536 -0.0934 0.4642 -0.33549 2008 3 12 54537 -0.0918 0.4666 -0.33686 2008 3 13 54538 -0.0901 0.4691 -0.33797 2008 3 14 54539 -0.0884 0.4715 -0.33889 2008 3 15 54540 -0.0866 0.4738 -0.33974 2008 3 16 54541 -0.0848 0.4762 -0.34065 2008 3 17 54542 -0.0830 0.4785 -0.34172 2008 3 18 54543 -0.0811 0.4808 -0.34300 2008 3 19 54544 -0.0792 0.4831 -0.34450 2008 3 20 54545 -0.0772 0.4853 -0.34615 2008 3 21 54546 -0.0752 0.4875 -0.34789 2008 3 22 54547 -0.0732 0.4897 -0.34963 2008 3 23 54548 -0.0711 0.4919 -0.35127 2008 3 24 54549 -0.0690 0.4940 -0.35269 2008 3 25 54550 -0.0668 0.4961 -0.35393 2008 3 26 54551 -0.0646 0.4981 -0.35498 2008 3 27 54552 -0.0624 0.5001 -0.35588 2008 3 28 54553 -0.0602 0.5021 -0.35667 2008 3 29 54554 -0.0579 0.5041 -0.35742 2008 3 30 54555 -0.0555 0.5060 -0.35820 2008 3 31 54556 -0.0532 0.5079 -0.35910 2008 4 1 54557 -0.0508 0.5097 -0.36019 2008 4 2 54558 -0.0484 0.5115 -0.36153 2008 4 3 54559 -0.0459 0.5133 -0.36314 2008 4 4 54560 -0.0435 0.5150 -0.36500 2008 4 5 54561 -0.0409 0.5167 -0.36700 2008 4 6 54562 -0.0384 0.5183 -0.36900 2008 4 7 54563 -0.0358 0.5200 -0.37084 2008 4 8 54564 -0.0332 0.5215 -0.37242 2008 4 9 54565 -0.0306 0.5231 -0.37369 2008 4 10 54566 -0.0280 0.5246 -0.37472 2008 4 11 54567 -0.0253 0.5260 -0.37561 2008 4 12 54568 -0.0226 0.5274 -0.37651 2008 4 13 54569 -0.0199 0.5288 -0.37753 2008 4 14 54570 -0.0171 0.5301 -0.37874 2008 4 15 54571 -0.0143 0.5314 -0.38013 2008 4 16 54572 -0.0115 0.5326 -0.38167 2008 4 17 54573 -0.0087 0.5338 -0.38329 2008 4 18 54574 -0.0059 0.5350 -0.38490 2008 4 19 54575 -0.0030 0.5361 -0.38643 2008 4 20 54576 -0.0001 0.5372 -0.38781 2008 4 21 54577 0.0028 0.5382 -0.38901 2008 4 22 54578 0.0057 0.5392 -0.39000 2008 4 23 54579 0.0086 0.5401 -0.39082 2008 4 24 54580 0.0116 0.5410 -0.39149 2008 4 25 54581 0.0145 0.5419 -0.39210 2008 4 26 54582 0.0175 0.5427 -0.39270 2008 4 27 54583 0.0205 0.5434 -0.39338 2008 4 28 54584 0.0235 0.5441 -0.39419 2008 4 29 54585 0.0265 0.5448 -0.39521 2008 4 30 54586 0.0296 0.5454 -0.39647 2008 5 1 54587 0.0326 0.5460 -0.39796 2008 5 2 54588 0.0357 0.5465 -0.39962 2008 5 3 54589 0.0387 0.5470 -0.40136 2008 5 4 54590 0.0418 0.5474 -0.40301 2008 5 5 54591 0.0449 0.5478 -0.40445 2008 5 6 54592 0.0480 0.5481 -0.40559 2008 5 7 54593 0.0511 0.5484 -0.40643 2008 5 8 54594 0.0542 0.5486 -0.40709 2008 5 9 54595 0.0573 0.5488 -0.40770 2008 5 10 54596 0.0604 0.5490 -0.40840 2008 5 11 54597 0.0635 0.5491 -0.40926 2008 5 12 54598 0.0666 0.5491 -0.41032 2008 5 13 54599 0.0698 0.5491 -0.41152 2008 5 14 54600 0.0729 0.5491 -0.41279 2008 5 15 54601 0.0760 0.5490 -0.41406 2008 5 16 54602 0.0791 0.5488 -0.41523 2008 5 17 54603 0.0822 0.5487 -0.41626 2008 5 18 54604 0.0853 0.5484 -0.41711 2008 5 19 54605 0.0885 0.5481 -0.41774 2008 5 20 54606 0.0916 0.5478 -0.41819 2008 5 21 54607 0.0947 0.5474 -0.41847 2008 5 22 54608 0.0978 0.5470 -0.41866 2008 5 23 54609 0.1009 0.5465 -0.41881 2008 5 24 54610 0.1039 0.5460 -0.41902 2008 5 25 54611 0.1070 0.5454 -0.41933 2008 5 26 54612 0.1101 0.5448 -0.41981 2008 5 27 54613 0.1131 0.5442 -0.42048 2008 5 28 54614 0.1162 0.5434 -0.42136 2008 5 29 54615 0.1192 0.5427 -0.42241 2008 5 30 54616 0.1222 0.5419 -0.42355 2008 5 31 54617 0.1253 0.5410 -0.42466 2008 6 1 54618 0.1283 0.5401 -0.42561 2008 6 2 54619 0.1312 0.5392 -0.42631 2008 6 3 54620 0.1342 0.5382 -0.42670 2008 6 4 54621 0.1372 0.5372 -0.42685 2008 6 5 54622 0.1401 0.5361 -0.42689 2008 6 6 54623 0.1430 0.5350 -0.42696 2008 6 7 54624 0.1459 0.5338 -0.42717 2008 6 8 54625 0.1488 0.5326 -0.42757 2008 6 9 54626 0.1516 0.5314 -0.42814 2008 6 10 54627 0.1545 0.5301 -0.42880 2008 6 11 54628 0.1573 0.5287 -0.42945 2008 6 12 54629 0.1601 0.5274 -0.43003 2008 6 13 54630 0.1629 0.5259 -0.43047 2008 6 14 54631 0.1656 0.5245 -0.43075 2008 6 15 54632 0.1684 0.5230 -0.43087 2008 6 16 54633 0.1711 0.5214 -0.43083 2008 6 17 54634 0.1737 0.5198 -0.43066 2008 6 18 54635 0.1764 0.5182 -0.43041 2008 6 19 54636 0.1790 0.5165 -0.43014 2008 6 20 54637 0.1816 0.5148 -0.42992 2008 6 21 54638 0.1842 0.5131 -0.42979 2008 6 22 54639 0.1867 0.5113 -0.42982 2008 6 23 54640 0.1892 0.5094 -0.43002 2008 6 24 54641 0.1917 0.5076 -0.43040 2008 6 25 54642 0.1941 0.5057 -0.43094 2008 6 26 54643 0.1966 0.5037 -0.43159 2008 6 27 54644 0.1989 0.5017 -0.43226 2008 6 28 54645 0.2013 0.4997 -0.43284 2008 6 29 54646 0.2036 0.4977 -0.43325 2008 6 30 54647 0.2059 0.4956 -0.43343 2008 7 1 54648 0.2081 0.4935 -0.43341 2008 7 2 54649 0.2103 0.4913 -0.43328 2008 7 3 54650 0.2125 0.4891 -0.43315 2008 7 4 54651 0.2147 0.4869 -0.43317 2008 7 5 54652 0.2168 0.4847 -0.43341 2008 7 6 54653 0.2188 0.4824 -0.43387 2008 7 7 54654 0.2208 0.4801 -0.43449 2008 7 8 54655 0.2228 0.4777 -0.43519 2008 7 9 54656 0.2248 0.4754 -0.43589 2008 7 10 54657 0.2267 0.4730 -0.43652 2008 7 11 54658 0.2286 0.4705 -0.43701 2008 7 12 54659 0.2304 0.4681 -0.43729 2008 7 13 54660 0.2322 0.4656 -0.43738 2008 7 14 54661 0.2339 0.4631 -0.43732 2008 7 15 54662 0.2356 0.4605 -0.43716 2008 7 16 54663 0.2373 0.4580 -0.43695 2008 7 17 54664 0.2389 0.4554 -0.43673 2008 7 18 54665 0.2405 0.4528 -0.43649 2008 7 19 54666 0.2420 0.4501 -0.43632 2008 7 20 54667 0.2435 0.4475 -0.43633 2008 7 21 54668 0.2449 0.4448 -0.43652 2008 7 22 54669 0.2463 0.4421 -0.43683 2008 7 23 54670 0.2477 0.4393 -0.43728 2008 7 24 54671 0.2490 0.4366 -0.43780 2008 7 25 54672 0.2502 0.4338 -0.43826 2008 7 26 54673 0.2514 0.4310 -0.43852 2008 7 27 54674 0.2526 0.4282 -0.43852 2008 7 28 54675 0.2537 0.4254 -0.43826 2008 7 29 54676 0.2548 0.4226 -0.43782 2008 7 30 54677 0.2558 0.4197 -0.43733 2008 7 31 54678 0.2568 0.4169 -0.43694 2008 8 1 54679 0.2577 0.4140 -0.43674 2008 8 2 54680 0.2586 0.4111 -0.43675 2008 8 3 54681 0.2594 0.4082 -0.43698 2008 8 4 54682 0.2602 0.4053 -0.43732 2008 8 5 54683 0.2609 0.4024 -0.43773 2008 8 6 54684 0.2616 0.3994 -0.43807 2008 8 7 54685 0.2622 0.3965 -0.43824 2008 8 8 54686 0.2628 0.3935 -0.43822 2008 8 9 54687 0.2634 0.3905 -0.43806 2008 8 10 54688 0.2638 0.3876 -0.43778 2008 8 11 54689 0.2643 0.3846 -0.43741 2008 8 12 54690 0.2647 0.3816 -0.43699 2008 8 13 54691 0.2650 0.3786 -0.43656 2008 8 14 54692 0.2653 0.3756 -0.43622 2008 8 15 54693 0.2655 0.3726 -0.43607 2008 8 16 54694 0.2657 0.3696 -0.43614 2008 8 17 54695 0.2658 0.3666 -0.43655 2008 8 18 54696 0.2659 0.3636 -0.43728 2008 8 19 54697 0.2659 0.3606 -0.43821 2008 8 20 54698 0.2659 0.3576 -0.43923 2008 8 21 54699 0.2658 0.3546 -0.44015 2008 8 22 54700 0.2657 0.3516 -0.44081 2008 8 23 54701 0.2655 0.3486 -0.44118 2008 8 24 54702 0.2653 0.3456 -0.44126 2008 8 25 54703 0.2650 0.3426 -0.44111 2008 8 26 54704 0.2647 0.3396 -0.44083 2008 8 27 54705 0.2643 0.3367 -0.44054 2008 8 28 54706 0.2638 0.3337 -0.44033 2008 8 29 54707 0.2634 0.3307 -0.44039 2008 8 30 54708 0.2628 0.3278 -0.44072 2008 8 31 54709 0.2623 0.3248 -0.44126 2008 9 1 54710 0.2616 0.3219 -0.44185 2008 9 2 54711 0.2609 0.3190 -0.44241 2008 9 3 54712 0.2602 0.3160 -0.44289 2008 9 4 54713 0.2594 0.3131 -0.44319 2008 9 5 54714 0.2586 0.3102 -0.44329 2008 9 6 54715 0.2577 0.3074 -0.44327 2008 9 7 54716 0.2568 0.3045 -0.44319 2008 9 8 54717 0.2558 0.3017 -0.44306 2008 9 9 54718 0.2548 0.2988 -0.44284 2008 9 10 54719 0.2537 0.2960 -0.44263 2008 9 11 54720 0.2526 0.2932 -0.44253 2008 9 12 54721 0.2514 0.2904 -0.44255 2008 9 13 54722 0.2502 0.2877 -0.44277 2008 9 14 54723 0.2490 0.2849 -0.44327 2008 9 15 54724 0.2477 0.2822 -0.44404 2008 9 16 54725 0.2463 0.2795 -0.44497 2008 9 17 54726 0.2449 0.2768 -0.44590 2008 9 18 54727 0.2435 0.2742 -0.44673 2008 9 19 54728 0.2420 0.2715 -0.44734 2008 9 20 54729 0.2404 0.2689 -0.44773 2008 9 21 54730 0.2389 0.2663 -0.44789 2008 9 22 54731 0.2372 0.2638 -0.44787 2008 9 23 54732 0.2356 0.2612 -0.44786 2008 9 24 54733 0.2339 0.2587 -0.44797 2008 9 25 54734 0.2321 0.2562 -0.44829 2008 9 26 54735 0.2303 0.2538 -0.44885 2008 9 27 54736 0.2285 0.2514 -0.44960 2008 9 28 54737 0.2266 0.2490 -0.45051 2008 9 29 54738 0.2247 0.2466 -0.45146 2008 9 30 54739 0.2227 0.2443 -0.45235 2008 10 1 54740 0.2207 0.2419 -0.45310 2008 10 2 54741 0.2187 0.2397 -0.45363 2008 10 3 54742 0.2166 0.2374 -0.45394 2008 10 4 54743 0.2145 0.2352 -0.45401 2008 10 5 54744 0.2123 0.2330 -0.45399 2008 10 6 54745 0.2102 0.2309 -0.45396 2008 10 7 54746 0.2079 0.2288 -0.45397 2008 10 8 54747 0.2057 0.2267 -0.45414 2008 10 9 54748 0.2034 0.2247 -0.45448 2008 10 10 54749 0.2010 0.2227 -0.45516 2008 10 11 54750 0.1987 0.2207 -0.45622 2008 10 12 54751 0.1963 0.2188 -0.45764 2008 10 13 54752 0.1939 0.2169 -0.45933 2008 10 14 54753 0.1914 0.2150 -0.46113 2008 10 15 54754 0.1889 0.2132 -0.46291 2008 10 16 54755 0.1864 0.2114 -0.46453 2008 10 17 54756 0.1838 0.2097 -0.46588 2008 10 18 54757 0.1812 0.2080 -0.46702 2008 10 19 54758 0.1786 0.2063 -0.46806 2008 10 20 54759 0.1760 0.2047 -0.46908 2008 10 21 54760 0.1733 0.2032 -0.47023 2008 10 22 54761 0.1706 0.2016 -0.47159 2008 10 23 54762 0.1679 0.2001 -0.47321 2008 10 24 54763 0.1651 0.1987 -0.47503 2008 10 25 54764 0.1624 0.1973 -0.47698 2008 10 26 54765 0.1596 0.1959 -0.47896 2008 10 27 54766 0.1568 0.1946 -0.48088 2008 10 28 54767 0.1539 0.1933 -0.48267 2008 10 29 54768 0.1511 0.1921 -0.48427 2008 10 30 54769 0.1482 0.1909 -0.48570 2008 10 31 54770 0.1453 0.1898 -0.48696 2008 11 1 54771 0.1423 0.1887 -0.48804 2008 11 2 54772 0.1394 0.1876 -0.48905 2008 11 3 54773 0.1364 0.1866 -0.49005 2008 11 4 54774 0.1335 0.1856 -0.49107 2008 11 5 54775 0.1305 0.1847 -0.49220 2008 11 6 54776 0.1275 0.1839 -0.49352 2008 11 7 54777 0.1244 0.1830 -0.49505 2008 11 8 54778 0.1214 0.1823 -0.49675 2008 11 9 54779 0.1184 0.1815 -0.49862 2008 11 10 54780 0.1153 0.1809 -0.50064 2008 11 11 54781 0.1122 0.1802 -0.50256 2008 11 12 54782 0.1091 0.1796 -0.50431 2008 11 13 54783 0.1060 0.1791 -0.50583 2008 11 14 54784 0.1029 0.1786 -0.50707 2008 11 15 54785 0.0998 0.1782 -0.50801 2008 11 16 54786 0.0967 0.1778 -0.50889 2008 11 17 54787 0.0936 0.1774 -0.50979 2008 11 18 54788 0.0904 0.1771 -0.51080 2008 11 19 54789 0.0873 0.1769 -0.51198 2008 11 20 54790 0.0842 0.1767 -0.51335 2008 11 21 54791 0.0810 0.1766 -0.51480 2008 11 22 54792 0.0779 0.1764 -0.51623 2008 11 23 54793 0.0747 0.1764 -0.51766 2008 11 24 54794 0.0716 0.1764 -0.51897 2008 11 25 54795 0.0684 0.1764 -0.52014 2008 11 26 54796 0.0653 0.1765 -0.52113 2008 11 27 54797 0.0621 0.1767 -0.52193 2008 11 28 54798 0.0590 0.1769 -0.52258 2008 11 29 54799 0.0558 0.1771 -0.52303 2008 11 30 54800 0.0527 0.1774 -0.52345 2008 12 1 54801 0.0496 0.1777 -0.52391 2008 12 2 54802 0.0464 0.1781 -0.52446 2008 12 3 54803 0.0433 0.1785 -0.52518 2008 12 4 54804 0.0402 0.1790 -0.52608 2008 12 5 54805 0.0371 0.1795 -0.52718 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) 54421 -62.43 .25 -4.24 .12 54422 -62.35 .19 -4.13 .12 54423 -62.31 .19 -4.08 .13 54424 -62.37 .15 -3.99 .13 54425 -62.59 .15 -3.80 .13 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54421 -0.053 0.099 -0.027 0.120 54422 -0.067 0.076 -0.021 0.120 54423 -0.086 0.076 -0.007 0.130 54424 -0.114 0.060 0.019 0.130 54425 -0.145 0.060 0.014 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.