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* I E R S B U L L E T I N - A *
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* Rapid Service/Prediction of Earth Orientation *
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23 August 2007 Vol. XX No. 034
______________________________________________________________________
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 17 54329 .21268 .00009 .29544 .00010 -.163670 .000006
7 8 18 54330 .21152 .00009 .29286 .00010 -.163871 .000008
7 8 19 54331 .21080 .00010 .28993 .00010 -.163995 .000008
7 8 20 54332 .21040 .00010 .28693 .00009 -.164006 .000008
7 8 21 54333 .21016 .00009 .28425 .00009 -.163858 .000008
7 8 22 54334 .20952 .00009 .28197 .00009 -.163528 .000048
7 8 23 54335 .20845 .00009 .27964 .00009 -.163088 .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 = .0511 + .0685 cos A + .0442 sin A + .0851 cos C - .1011 sin C
y = .3456 + .0397 cos A - .0650 sin A - .1011 cos C - .0851 sin C
UT1-UTC = -.1836 - .00095 (MJD - 54340) - (UT2-UT1)
where A = 2*pi*(MJD-54335)/365.25 and C = 2*pi*(MJD-54335)/435.
TAI-UTC(MJD 54336) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-54335)**0.80 S t = 0.00025 (MJD-54335)**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 24 54336 0.2072 0.2775 -0.16257
2007 8 25 54337 0.2058 0.2751 -0.16211
2007 8 26 54338 0.2044 0.2727 -0.16185
2007 8 27 54339 0.2030 0.2702 -0.16188
2007 8 28 54340 0.2017 0.2678 -0.16223
2007 8 29 54341 0.2003 0.2655 -0.16287
2007 8 30 54342 0.1989 0.2633 -0.16369
2007 8 31 54343 0.1974 0.2611 -0.16457
2007 9 1 54344 0.1958 0.2589 -0.16536
2007 9 2 54345 0.1942 0.2567 -0.16594
2007 9 3 54346 0.1925 0.2545 -0.16622
2007 9 4 54347 0.1908 0.2524 -0.16622
2007 9 5 54348 0.1890 0.2503 -0.16607
2007 9 6 54349 0.1872 0.2482 -0.16592
2007 9 7 54350 0.1854 0.2462 -0.16588
2007 9 8 54351 0.1835 0.2442 -0.16606
2007 9 9 54352 0.1816 0.2422 -0.16648
2007 9 10 54353 0.1796 0.2403 -0.16714
2007 9 11 54354 0.1776 0.2384 -0.16796
2007 9 12 54355 0.1756 0.2365 -0.16887
2007 9 13 54356 0.1735 0.2346 -0.16979
2007 9 14 54357 0.1714 0.2328 -0.17064
2007 9 15 54358 0.1693 0.2310 -0.17136
2007 9 16 54359 0.1671 0.2293 -0.17193
2007 9 17 54360 0.1649 0.2276 -0.17236
2007 9 18 54361 0.1627 0.2259 -0.17265
2007 9 19 54362 0.1604 0.2242 -0.17287
2007 9 20 54363 0.1581 0.2226 -0.17307
2007 9 21 54364 0.1558 0.2210 -0.17335
2007 9 22 54365 0.1534 0.2195 -0.17380
2007 9 23 54366 0.1511 0.2180 -0.17451
2007 9 24 54367 0.1487 0.2165 -0.17555
2007 9 25 54368 0.1462 0.2151 -0.17693
2007 9 26 54369 0.1438 0.2137 -0.17859
2007 9 27 54370 0.1413 0.2123 -0.18038
2007 9 28 54371 0.1387 0.2110 -0.18213
2007 9 29 54372 0.1362 0.2097 -0.18367
2007 9 30 54373 0.1336 0.2084 -0.18491
2007 10 1 54374 0.1311 0.2072 -0.18584
2007 10 2 54375 0.1285 0.2061 -0.18656
2007 10 3 54376 0.1258 0.2049 -0.18721
2007 10 4 54377 0.1232 0.2038 -0.18792
2007 10 5 54378 0.1205 0.2028 -0.18878
2007 10 6 54379 0.1178 0.2018 -0.18983
2007 10 7 54380 0.1151 0.2008 -0.19108
2007 10 8 54381 0.1124 0.1999 -0.19247
2007 10 9 54382 0.1096 0.1990 -0.19396
2007 10 10 54383 0.1069 0.1981 -0.19546
2007 10 11 54384 0.1041 0.1973 -0.19691
2007 10 12 54385 0.1013 0.1966 -0.19826
2007 10 13 54386 0.0985 0.1959 -0.19945
2007 10 14 54387 0.0956 0.1952 -0.20047
2007 10 15 54388 0.0928 0.1945 -0.20134
2007 10 16 54389 0.0900 0.1940 -0.20211
2007 10 17 54390 0.0871 0.1934 -0.20282
2007 10 18 54391 0.0842 0.1929 -0.20357
2007 10 19 54392 0.0813 0.1924 -0.20444
2007 10 20 54393 0.0784 0.1920 -0.20550
2007 10 21 54394 0.0755 0.1917 -0.20685
2007 10 22 54395 0.0726 0.1913 -0.20849
2007 10 23 54396 0.0697 0.1910 -0.21042
2007 10 24 54397 0.0668 0.1908 -0.21252
2007 10 25 54398 0.0638 0.1906 -0.21465
2007 10 26 54399 0.0609 0.1904 -0.21663
2007 10 27 54400 0.0580 0.1903 -0.21833
2007 10 28 54401 0.0550 0.1903 -0.21970
2007 10 29 54402 0.0521 0.1903 -0.22078
2007 10 30 54403 0.0491 0.1903 -0.22171
2007 10 31 54404 0.0462 0.1904 -0.22263
2007 11 1 54405 0.0432 0.1905 -0.22367
2007 11 2 54406 0.0403 0.1906 -0.22489
2007 11 3 54407 0.0373 0.1908 -0.22629
2007 11 4 54408 0.0343 0.1911 -0.22783
2007 11 5 54409 0.0314 0.1914 -0.22945
2007 11 6 54410 0.0285 0.1917 -0.23109
2007 11 7 54411 0.0255 0.1921 -0.23268
2007 11 8 54412 0.0226 0.1925 -0.23416
2007 11 9 54413 0.0196 0.1930 -0.23548
2007 11 10 54414 0.0167 0.1935 -0.23662
2007 11 11 54415 0.0138 0.1941 -0.23757
2007 11 12 54416 0.0109 0.1947 -0.23838
2007 11 13 54417 0.0080 0.1953 -0.23909
2007 11 14 54418 0.0051 0.1960 -0.23979
2007 11 15 54419 0.0022 0.1968 -0.24055
2007 11 16 54420 -0.0007 0.1976 -0.24145
2007 11 17 54421 -0.0035 0.1984 -0.24256
2007 11 18 54422 -0.0064 0.1993 -0.24392
2007 11 19 54423 -0.0092 0.2002 -0.24552
2007 11 20 54424 -0.0120 0.2011 -0.24731
2007 11 21 54425 -0.0148 0.2021 -0.24917
2007 11 22 54426 -0.0176 0.2032 -0.25097
2007 11 23 54427 -0.0204 0.2043 -0.25254
2007 11 24 54428 -0.0231 0.2054 -0.25382
2007 11 25 54429 -0.0259 0.2066 -0.25478
2007 11 26 54430 -0.0286 0.2078 -0.25553
2007 11 27 54431 -0.0313 0.2090 -0.25621
2007 11 28 54432 -0.0340 0.2103 -0.25696
2007 11 29 54433 -0.0367 0.2116 -0.25787
2007 11 30 54434 -0.0393 0.2130 -0.25896
2007 12 1 54435 -0.0419 0.2144 -0.26021
2007 12 2 54436 -0.0445 0.2159 -0.26153
2007 12 3 54437 -0.0471 0.2174 -0.26286
2007 12 4 54438 -0.0496 0.2189 -0.26414
2007 12 5 54439 -0.0522 0.2205 -0.26530
2007 12 6 54440 -0.0547 0.2221 -0.26631
2007 12 7 54441 -0.0571 0.2237 -0.26717
2007 12 8 54442 -0.0596 0.2254 -0.26786
2007 12 9 54443 -0.0620 0.2272 -0.26839
2007 12 10 54444 -0.0644 0.2289 -0.26883
2007 12 11 54445 -0.0668 0.2307 -0.26925
2007 12 12 54446 -0.0691 0.2326 -0.26971
2007 12 13 54447 -0.0714 0.2344 -0.27031
2007 12 14 54448 -0.0737 0.2363 -0.27111
2007 12 15 54449 -0.0759 0.2383 -0.27213
2007 12 16 54450 -0.0781 0.2402 -0.27339
2007 12 17 54451 -0.0803 0.2423 -0.27484
2007 12 18 54452 -0.0825 0.2443 -0.27639
2007 12 19 54453 -0.0846 0.2464 -0.27792
2007 12 20 54454 -0.0866 0.2485 -0.27930
2007 12 21 54455 -0.0887 0.2506 -0.28044
2007 12 22 54456 -0.0907 0.2528 -0.28131
2007 12 23 54457 -0.0927 0.2550 -0.28195
2007 12 24 54458 -0.0946 0.2572 -0.28250
2007 12 25 54459 -0.0965 0.2595 -0.28308
2007 12 26 54460 -0.0984 0.2618 -0.28382
2007 12 27 54461 -0.1002 0.2641 -0.28476
2007 12 28 54462 -0.1020 0.2664 -0.28590
2007 12 29 54463 -0.1037 0.2688 -0.28717
2007 12 30 54464 -0.1054 0.2712 -0.28848
2007 12 31 54465 -0.1071 0.2736 -0.28975
2008 1 1 54466 -0.1087 0.2761 -0.29090
2008 1 2 54467 -0.1103 0.2785 -0.29191
2008 1 3 54468 -0.1119 0.2810 -0.29273
2008 1 4 54469 -0.1134 0.2836 -0.29338
2008 1 5 54470 -0.1148 0.2861 -0.29387
2008 1 6 54471 -0.1163 0.2887 -0.29425
2008 1 7 54472 -0.1176 0.2913 -0.29459
2008 1 8 54473 -0.1190 0.2939 -0.29497
2008 1 9 54474 -0.1203 0.2965 -0.29547
2008 1 10 54475 -0.1215 0.2992 -0.29616
2008 1 11 54476 -0.1227 0.3018 -0.29709
2008 1 12 54477 -0.1239 0.3045 -0.29826
2008 1 13 54478 -0.1250 0.3072 -0.29963
2008 1 14 54479 -0.1260 0.3100 -0.30110
2008 1 15 54480 -0.1271 0.3127 -0.30257
2008 1 16 54481 -0.1280 0.3155 -0.30391
2008 1 17 54482 -0.1290 0.3182 -0.30504
2008 1 18 54483 -0.1299 0.3210 -0.30591
2008 1 19 54484 -0.1307 0.3238 -0.30656
2008 1 20 54485 -0.1315 0.3266 -0.30709
2008 1 21 54486 -0.1322 0.3295 -0.30761
2008 1 22 54487 -0.1329 0.3323 -0.30827
2008 1 23 54488 -0.1336 0.3352 -0.30914
2008 1 24 54489 -0.1342 0.3380 -0.31023
2008 1 25 54490 -0.1347 0.3409 -0.31150
2008 1 26 54491 -0.1352 0.3438 -0.31287
2008 1 27 54492 -0.1357 0.3466 -0.31424
2008 1 28 54493 -0.1361 0.3495 -0.31551
2008 1 29 54494 -0.1364 0.3524 -0.31665
2008 1 30 54495 -0.1367 0.3553 -0.31760
2008 1 31 54496 -0.1370 0.3582 -0.31838
2008 2 1 54497 -0.1372 0.3612 -0.31899
2008 2 2 54498 -0.1374 0.3641 -0.31948
2008 2 3 54499 -0.1375 0.3670 -0.31990
2008 2 4 54500 -0.1375 0.3699 -0.32035
2008 2 5 54501 -0.1376 0.3728 -0.32091
2008 2 6 54502 -0.1375 0.3757 -0.32165
2008 2 7 54503 -0.1374 0.3787 -0.32264
2008 2 8 54504 -0.1373 0.3816 -0.32389
2008 2 9 54505 -0.1371 0.3845 -0.32538
2008 2 10 54506 -0.1369 0.3874 -0.32701
2008 2 11 54507 -0.1366 0.3903 -0.32866
2008 2 12 54508 -0.1363 0.3932 -0.33019
2008 2 13 54509 -0.1359 0.3962 -0.33150
2008 2 14 54510 -0.1354 0.3991 -0.33255
2008 2 15 54511 -0.1350 0.4019 -0.33336
2008 2 16 54512 -0.1344 0.4048 -0.33402
2008 2 17 54513 -0.1339 0.4077 -0.33463
2008 2 18 54514 -0.1332 0.4106 -0.33532
2008 2 19 54515 -0.1326 0.4134 -0.33619
2008 2 20 54516 -0.1318 0.4163 -0.33728
2008 2 21 54517 -0.1311 0.4191 -0.33854
2008 2 22 54518 -0.1302 0.4220 -0.33991
2008 2 23 54519 -0.1294 0.4248 -0.34129
2008 2 24 54520 -0.1284 0.4276 -0.34256
2008 2 25 54521 -0.1275 0.4304 -0.34366
2008 2 26 54522 -0.1265 0.4331 -0.34452
2008 2 27 54523 -0.1254 0.4359 -0.34513
2008 2 28 54524 -0.1243 0.4386 -0.34551
2008 2 29 54525 -0.1231 0.4414 -0.34570
2008 3 1 54526 -0.1219 0.4441 -0.34578
2008 3 2 54527 -0.1207 0.4468 -0.34583
2008 3 3 54528 -0.1194 0.4494 -0.34594
2008 3 4 54529 -0.1181 0.4521 -0.34622
2008 3 5 54530 -0.1167 0.4547 -0.34675
2008 3 6 54531 -0.1153 0.4573 -0.34759
2008 3 7 54532 -0.1138 0.4599 -0.34873
2008 3 8 54533 -0.1123 0.4625 -0.35012
2008 3 9 54534 -0.1107 0.4650 -0.35164
2008 3 10 54535 -0.1091 0.4676 -0.35316
2008 3 11 54536 -0.1075 0.4701 -0.35454
2008 3 12 54537 -0.1058 0.4725 -0.35573
2008 3 13 54538 -0.1040 0.4750 -0.35674
2008 3 14 54539 -0.1023 0.4774 -0.35766
2008 3 15 54540 -0.1005 0.4798 -0.35862
2008 3 16 54541 -0.0986 0.4822 -0.35972
2008 3 17 54542 -0.0967 0.4845 -0.36104
2008 3 18 54543 -0.0948 0.4868 -0.36262
2008 3 19 54544 -0.0928 0.4891 -0.36444
2008 3 20 54545 -0.0908 0.4914 -0.36644
2008 3 21 54546 -0.0887 0.4936 -0.36854
2008 3 22 54547 -0.0866 0.4958 -0.37066
2008 3 23 54548 -0.0845 0.4979 -0.37270
2008 3 24 54549 -0.0823 0.5001 -0.37461
2008 3 25 54550 -0.0801 0.5021 -0.37635
2008 3 26 54551 -0.0779 0.5042 -0.37791
2008 3 27 54552 -0.0756 0.5062 -0.37933
2008 3 28 54553 -0.0733 0.5082 -0.38065
2008 3 29 54554 -0.0710 0.5102 -0.38193
2008 3 30 54555 -0.0686 0.5121 -0.38321
2008 3 31 54556 -0.0662 0.5140 -0.38460
2008 4 1 54557 -0.0638 0.5159 -0.38615
2008 4 2 54558 -0.0613 0.5177 -0.38790
2008 4 3 54559 -0.0588 0.5194 -0.38988
2008 4 4 54560 -0.0563 0.5212 -0.39212
2008 4 5 54561 -0.0537 0.5229 -0.39450
2008 4 6 54562 -0.0511 0.5245 -0.39684
2008 4 7 54563 -0.0485 0.5262 -0.39903
2008 4 8 54564 -0.0458 0.5277 -0.40101
2008 4 9 54565 -0.0432 0.5293 -0.40260
2008 4 10 54566 -0.0405 0.5308 -0.40393
2008 4 11 54567 -0.0377 0.5323 -0.40512
2008 4 12 54568 -0.0350 0.5337 -0.40628
2008 4 13 54569 -0.0322 0.5351 -0.40748
2008 4 14 54570 -0.0294 0.5364 -0.40886
2008 4 15 54571 -0.0266 0.5377 -0.41037
2008 4 16 54572 -0.0237 0.5389 -0.41198
2008 4 17 54573 -0.0209 0.5401 -0.41363
2008 4 18 54574 -0.0180 0.5413 -0.41527
2008 4 19 54575 -0.0151 0.5424 -0.41681
2008 4 20 54576 -0.0121 0.5435 -0.41817
2008 4 21 54577 -0.0092 0.5445 -0.41943
2008 4 22 54578 -0.0062 0.5455 -0.42052
2008 4 23 54579 -0.0032 0.5465 -0.42147
2008 4 24 54580 -0.0002 0.5474 -0.42231
2008 4 25 54581 0.0028 0.5482 -0.42308
2008 4 26 54582 0.0058 0.5490 -0.42384
2008 4 27 54583 0.0088 0.5498 -0.42456
2008 4 28 54584 0.0119 0.5505 -0.42540
2008 4 29 54585 0.0150 0.5512 -0.42643
2008 4 30 54586 0.0180 0.5518 -0.42768
2008 5 1 54587 0.0211 0.5524 -0.42916
2008 5 2 54588 0.0242 0.5529 -0.43082
2008 5 3 54589 0.0273 0.5534 -0.43256
2008 5 4 54590 0.0305 0.5538 -0.43420
2008 5 5 54591 0.0336 0.5542 -0.43567
2008 5 6 54592 0.0367 0.5545 -0.43688
2008 5 7 54593 0.0398 0.5548 -0.43775
2008 5 8 54594 0.0430 0.5551 -0.43839
2008 5 9 54595 0.0461 0.5553 -0.43901
2008 5 10 54596 0.0493 0.5554 -0.43973
2008 5 11 54597 0.0524 0.5555 -0.44056
2008 5 12 54598 0.0556 0.5556 -0.44164
2008 5 13 54599 0.0587 0.5556 -0.44293
2008 5 14 54600 0.0619 0.5555 -0.44428
2008 5 15 54601 0.0651 0.5554 -0.44565
2008 5 16 54602 0.0682 0.5553 -0.44693
2008 5 17 54603 0.0714 0.5551 -0.44805
2008 5 18 54604 0.0745 0.5549 -0.44898
2008 5 19 54605 0.0777 0.5546 -0.44965
2008 5 20 54606 0.0808 0.5543 -0.45015
2008 5 21 54607 0.0839 0.5539 -0.45044
2008 5 22 54608 0.0871 0.5535 -0.45058
2008 5 23 54609 0.0902 0.5530 -0.45067
2008 5 24 54610 0.0933 0.5525 -0.45082
2008 5 25 54611 0.0964 0.5519 -0.45106
2008 5 26 54612 0.0995 0.5513 -0.45144
2008 5 27 54613 0.1026 0.5506 -0.45203
2008 5 28 54614 0.1056 0.5499 -0.45281
2008 5 29 54615 0.1087 0.5492 -0.45375
2008 5 30 54616 0.1117 0.5484 -0.45476
2008 5 31 54617 0.1148 0.5475 -0.45571
2008 6 1 54618 0.1178 0.5466 -0.45653
2008 6 2 54619 0.1208 0.5457 -0.45713
2008 6 3 54620 0.1238 0.5447 -0.45743
2008 6 4 54621 0.1268 0.5437 -0.45746
2008 6 5 54622 0.1297 0.5426 -0.45733
2008 6 6 54623 0.1326 0.5415 -0.45719
2008 6 7 54624 0.1356 0.5403 -0.45719
2008 6 8 54625 0.1385 0.5391 -0.45738
2008 6 9 54626 0.1413 0.5378 -0.45771
2008 6 10 54627 0.1442 0.5365 -0.45822
2008 6 11 54628 0.1470 0.5352 -0.45878
2008 6 12 54629 0.1498 0.5338 -0.45927
2008 6 13 54630 0.1526 0.5324 -0.45967
2008 6 14 54631 0.1554 0.5309 -0.45980
2008 6 15 54632 0.1581 0.5294 -0.45979
2008 6 16 54633 0.1608 0.5279 -0.45959
2008 6 17 54634 0.1635 0.5263 -0.45922
2008 6 18 54635 0.1662 0.5246 -0.45876
2008 6 19 54636 0.1688 0.5230 -0.45825
2008 6 20 54637 0.1714 0.5212 -0.45784
2008 6 21 54638 0.1740 0.5195 -0.45751
2008 6 22 54639 0.1765 0.5177 -0.45733
2008 6 23 54640 0.1790 0.5159 -0.45730
2008 6 24 54641 0.1815 0.5140 -0.45742
2008 6 25 54642 0.1839 0.5121 -0.45773
2008 6 26 54643 0.1863 0.5101 -0.45818
2008 6 27 54644 0.1887 0.5082 -0.45867
2008 6 28 54645 0.1911 0.5061 -0.45911
2008 6 29 54646 0.1934 0.5041 -0.45943
2008 6 30 54647 0.1957 0.5020 -0.45949
2008 7 1 54648 0.1979 0.4999 -0.45934
2008 7 2 54649 0.2001 0.4977 -0.45905
2008 7 3 54650 0.2023 0.4955 -0.45873
2008 7 4 54651 0.2044 0.4933 -0.45850
2008 7 5 54652 0.2065 0.4910 -0.45845
2008 7 6 54653 0.2085 0.4888 -0.45861
2008 7 7 54654 0.2106 0.4864 -0.45891
2008 7 8 54655 0.2125 0.4841 -0.45927
2008 7 9 54656 0.2145 0.4817 -0.45959
2008 7 10 54657 0.2164 0.4793 -0.45979
2008 7 11 54658 0.2182 0.4769 -0.45986
2008 7 12 54659 0.2200 0.4744 -0.45980
2008 7 13 54660 0.2218 0.4719 -0.45969
2008 7 14 54661 0.2235 0.4694 -0.45947
2008 7 15 54662 0.2252 0.4668 -0.45914
2008 7 16 54663 0.2268 0.4643 -0.45876
2008 7 17 54664 0.2284 0.4617 -0.45841
2008 7 18 54665 0.2300 0.4590 -0.45818
2008 7 19 54666 0.2315 0.4564 -0.45807
2008 7 20 54667 0.2329 0.4537 -0.45810
2008 7 21 54668 0.2344 0.4510 -0.45827
2008 7 22 54669 0.2357 0.4483 -0.45862
2008 7 23 54670 0.2370 0.4456 -0.45908
2008 7 24 54671 0.2383 0.4428 -0.45959
2008 7 25 54672 0.2395 0.4401 -0.46006
2008 7 26 54673 0.2407 0.4373 -0.46033
2008 7 27 54674 0.2419 0.4345 -0.46029
2008 7 28 54675 0.2429 0.4316 -0.46004
2008 7 29 54676 0.2440 0.4288 -0.45960
2008 7 30 54677 0.2450 0.4259 -0.45911
2008 7 31 54678 0.2459 0.4230 -0.45870
2008 8 1 54679 0.2468 0.4202 -0.45849
2008 8 2 54680 0.2476 0.4173 -0.45857
2008 8 3 54681 0.2484 0.4143 -0.45885
2008 8 4 54682 0.2492 0.4114 -0.45923
2008 8 5 54683 0.2499 0.4085 -0.45964
2008 8 6 54684 0.2505 0.4055 -0.45996
2008 8 7 54685 0.2511 0.4026 -0.46009
2008 8 8 54686 0.2516 0.3996 -0.46006
2008 8 9 54687 0.2521 0.3966 -0.45990
2008 8 10 54688 0.2525 0.3936 -0.45960
2008 8 11 54689 0.2529 0.3907 -0.45926
2008 8 12 54690 0.2533 0.3877 -0.45878
2008 8 13 54691 0.2535 0.3847 -0.45829
2008 8 14 54692 0.2538 0.3817 -0.45790
2008 8 15 54693 0.2540 0.3786 -0.45767
2008 8 16 54694 0.2541 0.3756 -0.45765
2008 8 17 54695 0.2542 0.3726 -0.45787
2008 8 18 54696 0.2542 0.3696 -0.45828
2008 8 19 54697 0.2542 0.3666 -0.45886
2008 8 20 54698 0.2541 0.3636 -0.45951
2008 8 21 54699 0.2540 0.3606 -0.46007
2008 8 22 54700 0.2538 0.3576 -0.46047
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)
54316 -66.83 .39 -6.76 .34
54317 -67.08 .28 -6.83 .34
54318 -67.12 .28 -6.88 .34
54319 -67.03 .74 -6.93 .10
54320 -66.93 .74 -6.96 .34
54321 -66.90 .74 -7.03 .34
54322 -66.86 .74 -7.11 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
54316 -0.072 0.155 -0.439 0.340
54317 -0.091 0.111 -0.421 0.340
54318 -0.116 0.111 -0.431 0.340
54319 -0.125 0.294 -0.484 0.100
54320 -0.100 0.294 -0.517 0.340
54321 -0.066 0.294 -0.540 0.340
54322 -0.033 0.294 -0.524 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.