********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 9 August 2007 Vol. XX No. 032 ______________________________________________________________________ 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 8 3 54315 .22626 .00009 .32909 .00010 -.162595 .000011 7 8 4 54316 .22592 .00009 .32651 .00010 -.163361 .000010 7 8 5 54317 .22525 .00009 .32368 .00010 -.163960 .000012 7 8 6 54318 .22412 .00009 .32095 .00009 -.164303 .000012 7 8 7 54319 .22279 .00009 .31850 .00009 -.164345 .000010 7 8 8 54320 .22135 .00009 .31603 .00009 -.164121 .000009 7 8 9 54321 .21968 .00009 .31340 .00009 -.163681 .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 = .0507 + .0547 cos A + .0648 sin A + .1084 cos C - .0855 sin C y = .3441 + .0590 cos A - .0511 sin A - .0855 cos C - .1084 sin C UT1-UTC = -.1774 - .00096 (MJD - 54326) - (UT2-UT1) where A = 2*pi*(MJD-54321)/365.25 and C = 2*pi*(MJD-54321)/435. TAI-UTC(MJD 54322) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54321)**0.80 S t = 0.00025 (MJD-54321)**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 8 10 54322 0.2183 0.3107 -0.16315 2007 8 11 54323 0.2169 0.3079 -0.16270 2007 8 12 54324 0.2156 0.3052 -0.16245 2007 8 13 54325 0.2144 0.3025 -0.16242 2007 8 14 54326 0.2133 0.2999 -0.16256 2007 8 15 54327 0.2121 0.2973 -0.16283 2007 8 16 54328 0.2109 0.2948 -0.16316 2007 8 17 54329 0.2097 0.2923 -0.16348 2007 8 18 54330 0.2084 0.2899 -0.16379 2007 8 19 54331 0.2071 0.2874 -0.16402 2007 8 20 54332 0.2058 0.2850 -0.16412 2007 8 21 54333 0.2044 0.2826 -0.16406 2007 8 22 54334 0.2031 0.2802 -0.16388 2007 8 23 54335 0.2017 0.2779 -0.16361 2007 8 24 54336 0.2003 0.2756 -0.16333 2007 8 25 54337 0.1988 0.2733 -0.16315 2007 8 26 54338 0.1974 0.2710 -0.16317 2007 8 27 54339 0.1958 0.2688 -0.16349 2007 8 28 54340 0.1943 0.2665 -0.16413 2007 8 29 54341 0.1927 0.2644 -0.16509 2007 8 30 54342 0.1911 0.2622 -0.16624 2007 8 31 54343 0.1895 0.2600 -0.16743 2007 9 1 54344 0.1878 0.2579 -0.16851 2007 9 2 54345 0.1861 0.2558 -0.16934 2007 9 3 54346 0.1843 0.2538 -0.16989 2007 9 4 54347 0.1825 0.2518 -0.17020 2007 9 5 54348 0.1807 0.2497 -0.17039 2007 9 6 54349 0.1788 0.2478 -0.17058 2007 9 7 54350 0.1770 0.2458 -0.17088 2007 9 8 54351 0.1750 0.2439 -0.17137 2007 9 9 54352 0.1731 0.2420 -0.17208 2007 9 10 54353 0.1711 0.2402 -0.17300 2007 9 11 54354 0.1691 0.2383 -0.17407 2007 9 12 54355 0.1670 0.2365 -0.17522 2007 9 13 54356 0.1649 0.2348 -0.17637 2007 9 14 54357 0.1628 0.2330 -0.17744 2007 9 15 54358 0.1607 0.2313 -0.17838 2007 9 16 54359 0.1585 0.2297 -0.17917 2007 9 17 54360 0.1563 0.2280 -0.17978 2007 9 18 54361 0.1541 0.2264 -0.18025 2007 9 19 54362 0.1518 0.2248 -0.18064 2007 9 20 54363 0.1495 0.2233 -0.18100 2007 9 21 54364 0.1472 0.2218 -0.18143 2007 9 22 54365 0.1448 0.2203 -0.18202 2007 9 23 54366 0.1424 0.2189 -0.18286 2007 9 24 54367 0.1400 0.2175 -0.18402 2007 9 25 54368 0.1376 0.2162 -0.18550 2007 9 26 54369 0.1352 0.2148 -0.18725 2007 9 27 54370 0.1327 0.2136 -0.18912 2007 9 28 54371 0.1302 0.2123 -0.19095 2007 9 29 54372 0.1277 0.2111 -0.19256 2007 9 30 54373 0.1251 0.2099 -0.19388 2007 10 1 54374 0.1226 0.2088 -0.19490 2007 10 2 54375 0.1200 0.2077 -0.19570 2007 10 3 54376 0.1174 0.2067 -0.19642 2007 10 4 54377 0.1147 0.2057 -0.19720 2007 10 5 54378 0.1121 0.2047 -0.19813 2007 10 6 54379 0.1094 0.2038 -0.19926 2007 10 7 54380 0.1067 0.2029 -0.20057 2007 10 8 54381 0.1040 0.2020 -0.20203 2007 10 9 54382 0.1013 0.2012 -0.20356 2007 10 10 54383 0.0986 0.2004 -0.20511 2007 10 11 54384 0.0958 0.1997 -0.20660 2007 10 12 54385 0.0931 0.1990 -0.20796 2007 10 13 54386 0.0903 0.1984 -0.20917 2007 10 14 54387 0.0875 0.1978 -0.21020 2007 10 15 54388 0.0847 0.1972 -0.21108 2007 10 16 54389 0.0819 0.1967 -0.21185 2007 10 17 54390 0.0791 0.1963 -0.21256 2007 10 18 54391 0.0762 0.1958 -0.21331 2007 10 19 54392 0.0734 0.1954 -0.21416 2007 10 20 54393 0.0705 0.1951 -0.21519 2007 10 21 54394 0.0677 0.1948 -0.21648 2007 10 22 54395 0.0648 0.1946 -0.21805 2007 10 23 54396 0.0619 0.1943 -0.21990 2007 10 24 54397 0.0590 0.1942 -0.22191 2007 10 25 54398 0.0562 0.1941 -0.22395 2007 10 26 54399 0.0533 0.1940 -0.22584 2007 10 27 54400 0.0504 0.1939 -0.22744 2007 10 28 54401 0.0475 0.1939 -0.22870 2007 10 29 54402 0.0446 0.1940 -0.22968 2007 10 30 54403 0.0417 0.1941 -0.23051 2007 10 31 54404 0.0388 0.1942 -0.23133 2007 11 1 54405 0.0359 0.1944 -0.23226 2007 11 2 54406 0.0330 0.1947 -0.23336 2007 11 3 54407 0.0301 0.1949 -0.23464 2007 11 4 54408 0.0272 0.1953 -0.23606 2007 11 5 54409 0.0243 0.1956 -0.23755 2007 11 6 54410 0.0214 0.1960 -0.23904 2007 11 7 54411 0.0186 0.1965 -0.24048 2007 11 8 54412 0.0157 0.1970 -0.24179 2007 11 9 54413 0.0128 0.1975 -0.24293 2007 11 10 54414 0.0100 0.1981 -0.24389 2007 11 11 54415 0.0071 0.1987 -0.24466 2007 11 12 54416 0.0043 0.1994 -0.24530 2007 11 13 54417 0.0014 0.2001 -0.24586 2007 11 14 54418 -0.0014 0.2009 -0.24641 2007 11 15 54419 -0.0042 0.2017 -0.24704 2007 11 16 54420 -0.0070 0.2025 -0.24782 2007 11 17 54421 -0.0098 0.2034 -0.24883 2007 11 18 54422 -0.0126 0.2043 -0.25010 2007 11 19 54423 -0.0153 0.2053 -0.25163 2007 11 20 54424 -0.0181 0.2063 -0.25337 2007 11 21 54425 -0.0208 0.2074 -0.25520 2007 11 22 54426 -0.0235 0.2085 -0.25698 2007 11 23 54427 -0.0262 0.2096 -0.25857 2007 11 24 54428 -0.0289 0.2108 -0.25986 2007 11 25 54429 -0.0315 0.2120 -0.26086 2007 11 26 54430 -0.0342 0.2133 -0.26166 2007 11 27 54431 -0.0368 0.2146 -0.26240 2007 11 28 54432 -0.0394 0.2159 -0.26322 2007 11 29 54433 -0.0420 0.2173 -0.26421 2007 11 30 54434 -0.0445 0.2187 -0.26539 2007 12 1 54435 -0.0471 0.2202 -0.26673 2007 12 2 54436 -0.0496 0.2217 -0.26816 2007 12 3 54437 -0.0521 0.2232 -0.26960 2007 12 4 54438 -0.0545 0.2248 -0.27099 2007 12 5 54439 -0.0570 0.2264 -0.27226 2007 12 6 54440 -0.0594 0.2281 -0.27337 2007 12 7 54441 -0.0617 0.2297 -0.27431 2007 12 8 54442 -0.0641 0.2315 -0.27506 2007 12 9 54443 -0.0664 0.2332 -0.27567 2007 12 10 54444 -0.0687 0.2350 -0.27617 2007 12 11 54445 -0.0710 0.2369 -0.27665 2007 12 12 54446 -0.0732 0.2387 -0.27717 2007 12 13 54447 -0.0755 0.2406 -0.27783 2007 12 14 54448 -0.0776 0.2426 -0.27868 2007 12 15 54449 -0.0798 0.2445 -0.27975 2007 12 16 54450 -0.0819 0.2466 -0.28106 2007 12 17 54451 -0.0840 0.2486 -0.28256 2007 12 18 54452 -0.0860 0.2507 -0.28415 2007 12 19 54453 -0.0880 0.2528 -0.28572 2007 12 20 54454 -0.0900 0.2549 -0.28715 2007 12 21 54455 -0.0920 0.2570 -0.28832 2007 12 22 54456 -0.0939 0.2592 -0.28922 2007 12 23 54457 -0.0958 0.2615 -0.28989 2007 12 24 54458 -0.0976 0.2637 -0.29045 2007 12 25 54459 -0.0994 0.2660 -0.29105 2007 12 26 54460 -0.1012 0.2683 -0.29181 2007 12 27 54461 -0.1029 0.2706 -0.29277 2007 12 28 54462 -0.1046 0.2730 -0.29392 2007 12 29 54463 -0.1062 0.2754 -0.29520 2007 12 30 54464 -0.1078 0.2778 -0.29651 2007 12 31 54465 -0.1094 0.2802 -0.29779 2008 1 1 54466 -0.1109 0.2827 -0.29895 2008 1 2 54467 -0.1124 0.2852 -0.29995 2008 1 3 54468 -0.1139 0.2877 -0.30077 2008 1 4 54469 -0.1153 0.2902 -0.30141 2008 1 5 54470 -0.1166 0.2928 -0.30190 2008 1 6 54471 -0.1179 0.2953 -0.30227 2008 1 7 54472 -0.1192 0.2979 -0.30259 2008 1 8 54473 -0.1204 0.3006 -0.30296 2008 1 9 54474 -0.1216 0.3032 -0.30345 2008 1 10 54475 -0.1228 0.3058 -0.30412 2008 1 11 54476 -0.1239 0.3085 -0.30504 2008 1 12 54477 -0.1249 0.3112 -0.30619 2008 1 13 54478 -0.1259 0.3139 -0.30754 2008 1 14 54479 -0.1269 0.3166 -0.30899 2008 1 15 54480 -0.1278 0.3194 -0.31043 2008 1 16 54481 -0.1287 0.3221 -0.31175 2008 1 17 54482 -0.1295 0.3249 -0.31285 2008 1 18 54483 -0.1303 0.3276 -0.31369 2008 1 19 54484 -0.1311 0.3304 -0.31431 2008 1 20 54485 -0.1317 0.3332 -0.31481 2008 1 21 54486 -0.1324 0.3360 -0.31530 2008 1 22 54487 -0.1330 0.3389 -0.31592 2008 1 23 54488 -0.1335 0.3417 -0.31676 2008 1 24 54489 -0.1340 0.3445 -0.31782 2008 1 25 54490 -0.1345 0.3474 -0.31905 2008 1 26 54491 -0.1349 0.3502 -0.32038 2008 1 27 54492 -0.1352 0.3531 -0.32170 2008 1 28 54493 -0.1355 0.3560 -0.32293 2008 1 29 54494 -0.1358 0.3588 -0.32401 2008 1 30 54495 -0.1360 0.3617 -0.32491 2008 1 31 54496 -0.1362 0.3646 -0.32562 2008 2 1 54497 -0.1363 0.3675 -0.32616 2008 2 2 54498 -0.1363 0.3703 -0.32656 2008 2 3 54499 -0.1363 0.3732 -0.32689 2008 2 4 54500 -0.1363 0.3761 -0.32722 2008 2 5 54501 -0.1362 0.3790 -0.32763 2008 2 6 54502 -0.1361 0.3819 -0.32820 2008 2 7 54503 -0.1359 0.3848 -0.32899 2008 2 8 54504 -0.1357 0.3877 -0.33000 2008 2 9 54505 -0.1354 0.3905 -0.33120 2008 2 10 54506 -0.1351 0.3934 -0.33248 2008 2 11 54507 -0.1347 0.3963 -0.33373 2008 2 12 54508 -0.1343 0.3991 -0.33480 2008 2 13 54509 -0.1338 0.4020 -0.33562 2008 2 14 54510 -0.1333 0.4049 -0.33614 2008 2 15 54511 -0.1327 0.4077 -0.33641 2008 2 16 54512 -0.1321 0.4105 -0.33654 2008 2 17 54513 -0.1314 0.4134 -0.33666 2008 2 18 54514 -0.1307 0.4162 -0.33694 2008 2 19 54515 -0.1299 0.4190 -0.33748 2008 2 20 54516 -0.1291 0.4218 -0.33833 2008 2 21 54517 -0.1283 0.4246 -0.33949 2008 2 22 54518 -0.1274 0.4273 -0.34091 2008 2 23 54519 -0.1264 0.4301 -0.34249 2008 2 24 54520 -0.1254 0.4328 -0.34412 2008 2 25 54521 -0.1244 0.4356 -0.34574 2008 2 26 54522 -0.1233 0.4383 -0.34727 2008 2 27 54523 -0.1221 0.4410 -0.34867 2008 2 28 54524 -0.1209 0.4437 -0.34993 2008 2 29 54525 -0.1197 0.4463 -0.35109 2008 3 1 54526 -0.1184 0.4490 -0.35218 2008 3 2 54527 -0.1171 0.4516 -0.35327 2008 3 3 54528 -0.1157 0.4542 -0.35443 2008 3 4 54529 -0.1143 0.4568 -0.35574 2008 3 5 54530 -0.1129 0.4593 -0.35726 2008 3 6 54531 -0.1114 0.4619 -0.35904 2008 3 7 54532 -0.1098 0.4644 -0.36106 2008 3 8 54533 -0.1082 0.4669 -0.36327 2008 3 9 54534 -0.1066 0.4694 -0.36555 2008 3 10 54535 -0.1049 0.4718 -0.36776 2008 3 11 54536 -0.1032 0.4742 -0.36976 2008 3 12 54537 -0.1015 0.4766 -0.37147 2008 3 13 54538 -0.0997 0.4790 -0.37288 2008 3 14 54539 -0.0978 0.4813 -0.37408 2008 3 15 54540 -0.0960 0.4836 -0.37517 2008 3 16 54541 -0.0940 0.4859 -0.37626 2008 3 17 54542 -0.0921 0.4882 -0.37748 2008 3 18 54543 -0.0901 0.4904 -0.37887 2008 3 19 54544 -0.0881 0.4926 -0.38041 2008 3 20 54545 -0.0860 0.4948 -0.38207 2008 3 21 54546 -0.0839 0.4969 -0.38381 2008 3 22 54547 -0.0817 0.4990 -0.38552 2008 3 23 54548 -0.0796 0.5011 -0.38710 2008 3 24 54549 -0.0773 0.5031 -0.38861 2008 3 25 54550 -0.0751 0.5051 -0.38997 2008 3 26 54551 -0.0728 0.5071 -0.39118 2008 3 27 54552 -0.0705 0.5090 -0.39225 2008 3 28 54553 -0.0681 0.5109 -0.39322 2008 3 29 54554 -0.0657 0.5128 -0.39414 2008 3 30 54555 -0.0633 0.5146 -0.39498 2008 3 31 54556 -0.0609 0.5164 -0.39591 2008 4 1 54557 -0.0584 0.5182 -0.39703 2008 4 2 54558 -0.0559 0.5199 -0.39837 2008 4 3 54559 -0.0533 0.5216 -0.39999 2008 4 4 54560 -0.0508 0.5232 -0.40185 2008 4 5 54561 -0.0482 0.5248 -0.40386 2008 4 6 54562 -0.0456 0.5264 -0.40587 2008 4 7 54563 -0.0429 0.5279 -0.40776 2008 4 8 54564 -0.0402 0.5294 -0.40943 2008 4 9 54565 -0.0375 0.5308 -0.41075 2008 4 10 54566 -0.0348 0.5322 -0.41177 2008 4 11 54567 -0.0320 0.5336 -0.41270 2008 4 12 54568 -0.0293 0.5349 -0.41365 2008 4 13 54569 -0.0265 0.5362 -0.41466 2008 4 14 54570 -0.0236 0.5374 -0.41593 2008 4 15 54571 -0.0208 0.5386 -0.41744 2008 4 16 54572 -0.0179 0.5397 -0.41910 2008 4 17 54573 -0.0150 0.5408 -0.42087 2008 4 18 54574 -0.0121 0.5419 -0.42263 2008 4 19 54575 -0.0092 0.5429 -0.42429 2008 4 20 54576 -0.0063 0.5439 -0.42580 2008 4 21 54577 -0.0033 0.5448 -0.42708 2008 4 22 54578 -0.0003 0.5457 -0.42816 2008 4 23 54579 0.0026 0.5465 -0.42903 2008 4 24 54580 0.0057 0.5473 -0.42970 2008 4 25 54581 0.0087 0.5480 -0.43026 2008 4 26 54582 0.0117 0.5487 -0.43085 2008 4 27 54583 0.0147 0.5494 -0.43148 2008 4 28 54584 0.0178 0.5500 -0.43223 2008 4 29 54585 0.0209 0.5506 -0.43317 2008 4 30 54586 0.0239 0.5511 -0.43435 2008 5 1 54587 0.0270 0.5515 -0.43575 2008 5 2 54588 0.0301 0.5519 -0.43729 2008 5 3 54589 0.0332 0.5523 -0.43887 2008 5 4 54590 0.0363 0.5526 -0.44037 2008 5 5 54591 0.0394 0.5529 -0.44170 2008 5 6 54592 0.0426 0.5531 -0.44272 2008 5 7 54593 0.0457 0.5533 -0.44341 2008 5 8 54594 0.0488 0.5535 -0.44385 2008 5 9 54595 0.0519 0.5535 -0.44418 2008 5 10 54596 0.0551 0.5536 -0.44459 2008 5 11 54597 0.0582 0.5536 -0.44514 2008 5 12 54598 0.0613 0.5535 -0.44586 2008 5 13 54599 0.0645 0.5534 -0.44680 2008 5 14 54600 0.0676 0.5532 -0.44785 2008 5 15 54601 0.0707 0.5530 -0.44893 2008 5 16 54602 0.0738 0.5528 -0.44997 2008 5 17 54603 0.0770 0.5525 -0.45078 2008 5 18 54604 0.0801 0.5522 -0.45147 2008 5 19 54605 0.0832 0.5518 -0.45196 2008 5 20 54606 0.0863 0.5513 -0.45225 2008 5 21 54607 0.0894 0.5508 -0.45240 2008 5 22 54608 0.0925 0.5503 -0.45245 2008 5 23 54609 0.0955 0.5497 -0.45253 2008 5 24 54610 0.0986 0.5491 -0.45263 2008 5 25 54611 0.1017 0.5484 -0.45283 2008 5 26 54612 0.1047 0.5477 -0.45315 2008 5 27 54613 0.1078 0.5469 -0.45364 2008 5 28 54614 0.1108 0.5461 -0.45435 2008 5 29 54615 0.1138 0.5452 -0.45527 2008 5 30 54616 0.1168 0.5443 -0.45632 2008 5 31 54617 0.1198 0.5434 -0.45740 2008 6 1 54618 0.1227 0.5424 -0.45840 2008 6 2 54619 0.1257 0.5413 -0.45914 2008 6 3 54620 0.1286 0.5402 -0.45961 2008 6 4 54621 0.1315 0.5391 -0.45986 2008 6 5 54622 0.1344 0.5379 -0.45996 2008 6 6 54623 0.1373 0.5367 -0.46006 2008 6 7 54624 0.1401 0.5354 -0.46028 2008 6 8 54625 0.1430 0.5341 -0.46069 2008 6 9 54626 0.1458 0.5328 -0.46126 2008 6 10 54627 0.1486 0.5314 -0.46193 2008 6 11 54628 0.1513 0.5299 -0.46262 2008 6 12 54629 0.1541 0.5284 -0.46324 2008 6 13 54630 0.1568 0.5269 -0.46376 2008 6 14 54631 0.1595 0.5254 -0.46416 2008 6 15 54632 0.1621 0.5237 -0.46451 2008 6 16 54633 0.1648 0.5221 -0.46471 2008 6 17 54634 0.1674 0.5204 -0.46475 2008 6 18 54635 0.1700 0.5187 -0.46468 2008 6 19 54636 0.1725 0.5169 -0.46457 2008 6 20 54637 0.1750 0.5151 -0.46450 2008 6 21 54638 0.1775 0.5133 -0.46450 2008 6 22 54639 0.1800 0.5114 -0.46459 2008 6 23 54640 0.1824 0.5094 -0.46479 2008 6 24 54641 0.1848 0.5075 -0.46518 2008 6 25 54642 0.1871 0.5055 -0.46573 2008 6 26 54643 0.1895 0.5035 -0.46641 2008 6 27 54644 0.1918 0.5014 -0.46714 2008 6 28 54645 0.1940 0.4993 -0.46772 2008 6 29 54646 0.1962 0.4971 -0.46802 2008 6 30 54647 0.1984 0.4950 -0.46806 2008 7 1 54648 0.2006 0.4928 -0.46784 2008 7 2 54649 0.2027 0.4905 -0.46745 2008 7 3 54650 0.2047 0.4883 -0.46704 2008 7 4 54651 0.2068 0.4860 -0.46674 2008 7 5 54652 0.2088 0.4836 -0.46670 2008 7 6 54653 0.2107 0.4813 -0.46686 2008 7 7 54654 0.2126 0.4789 -0.46716 2008 7 8 54655 0.2145 0.4764 -0.46752 2008 7 9 54656 0.2163 0.4740 -0.46783 2008 7 10 54657 0.2181 0.4715 -0.46799 2008 7 11 54658 0.2199 0.4690 -0.46800 2008 7 12 54659 0.2216 0.4665 -0.46786 2008 7 13 54660 0.2232 0.4639 -0.46756 2008 7 14 54661 0.2249 0.4613 -0.46717 2008 7 15 54662 0.2264 0.4587 -0.46659 2008 7 16 54663 0.2280 0.4561 -0.46592 2008 7 17 54664 0.2294 0.4534 -0.46529 2008 7 18 54665 0.2309 0.4507 -0.46476 2008 7 19 54666 0.2323 0.4480 -0.46438 2008 7 20 54667 0.2336 0.4453 -0.46421 2008 7 21 54668 0.2349 0.4425 -0.46423 2008 7 22 54669 0.2362 0.4398 -0.46444 2008 7 23 54670 0.2374 0.4370 -0.46477 2008 7 24 54671 0.2385 0.4342 -0.46510 2008 7 25 54672 0.2396 0.4314 -0.46534 2008 7 26 54673 0.2407 0.4285 -0.46542 2008 7 27 54674 0.2417 0.4257 -0.46527 2008 7 28 54675 0.2427 0.4228 -0.46496 2008 7 29 54676 0.2436 0.4199 -0.46454 2008 7 30 54677 0.2445 0.4170 -0.46407 2008 7 31 54678 0.2453 0.4141 -0.46370 2008 8 1 54679 0.2461 0.4111 -0.46353 2008 8 2 54680 0.2468 0.4082 -0.46364 2008 8 3 54681 0.2475 0.4052 -0.46400 2008 8 4 54682 0.2481 0.4023 -0.46451 2008 8 5 54683 0.2486 0.3993 -0.46500 2008 8 6 54684 0.2492 0.3963 -0.46543 2008 8 7 54685 0.2496 0.3933 -0.46566 2008 8 8 54686 0.2500 0.3903 -0.46567 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) 54302 -64.61 .21 -6.75 .34 54303 -64.77 .15 -6.82 .10 54304 -64.84 .15 -6.77 .10 54305 -64.93 .74 -6.75 .11 54306 -65.08 .23 -6.85 .12 54307 -65.22 .23 -6.99 .12 54308 -65.33 .23 -7.04 .12 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54302 -0.028 0.084 -0.415 0.340 54303 -0.045 0.060 -0.440 0.100 54304 -0.059 0.060 -0.444 0.100 54305 -0.060 0.294 -0.453 0.110 54306 -0.055 0.091 -0.480 0.120 54307 -0.040 0.091 -0.494 0.120 54308 -0.027 0.091 -0.481 0.120 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.