**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
22 February 2018 Vol. XXXI No. 008
______________________________________________________________________
GENERAL INFORMATION:
To receive this information electronically, contact:
ser7@maia.usno.navy.mil or use
<http://maia.usno.navy.mil/docrequest.html>
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 30 Nov 2017 at 0000 UTC
= +0.1 seconds beginning 15 Mar 2018 at 0000 UTC
Beginning 1 January 2017:
TAI-UTC = 37.000 000 seconds
***********************************************************************
* *
* Please note that daily and Bulletin A EOP data can be obtained from *
* the primary Earth Orientation (EO) servers at: *
* http://maia.usno.navy.mil ftp://maia.usno.navy.mil *
* and from the backup EO server at: *
* http://toshi.nofs.navy.mil ftp://toshi.nofs.navy.mil *
* *
* An additional backup mirror of the daily and Bulletin A EOP data *
* is now hosted by NASA's Archive of Space Geodesy Data server at: *
* ftp://cddis.gsfc.nasa.gov/pub/products/iers *
* Daily EOP data will be uploaded here at 18:00 UTC, and *
* Bulletin A EOP data should be available by 20:00 UTC. *
* *
* We are currently not able to receive email at *
* ser7@maia.usno.navy.mil. Questions and enquiries can now be *
* directed to the following email account: navobsy_eop.fct@navy.mil *
* *
* It is anticipated that the IERS RS/PC will transition its EOP *
* solution to be consistent with the 14 C04 EOP system on *
* 15-March-2018. If the transition cannot be done by that date, *
* alternative dates to implement the change could be 22-March-2018, *
* 29-March-2018, or 05-April-2018. *
* *
* Distribution statement A. Approved for public release: *
* distribution unlimited. *
* *
***********************************************************************
________________________________________________________________________
The contributed observations used in the preparation of this Bulletin
are available at <http://www.usno.navy.mil/USNO/earth-orientation/
eo-info/general/input-data>. 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
18 2 16 58165 0.00143 .00009 0.31500 .00009 0.179149 0.000006
18 2 17 58166 0.00108 .00009 0.31650 .00009 0.178164 0.000005
18 2 18 58167 0.00083 .00009 0.31799 .00009 0.177092 0.000005
18 2 19 58168 0.00087 .00009 0.31969 .00009 0.175955 0.000014
18 2 20 58169 0.00125 .00009 0.32181 .00009 0.174796 0.000017
18 2 21 58170 0.00188 .00009 0.32436 .00009 0.173651 0.000018
18 2 22 58171 0.00247 .00009 0.32703 .00009 0.172548 0.000020
_______________________________________________________________________
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 = 0.1219 - 0.1266 cos A - 0.0448 sin A + 0.0036 cos C + 0.0188 sin C
y = 0.3523 - 0.0425 cos A + 0.1173 sin A + 0.0188 cos C - 0.0036 sin C
UT1-UTC = 0.1827 - 0.00093 (MJD - 58179) - (UT2-UT1)
where A = 2*pi*(MJD-58171)/365.25 and C = 2*pi*(MJD-58171)/435.
TAI-UTC(MJD 58172) = 37.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-58171)**0.80 S t = 0.00025 (MJD-58171)**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)
2018 2 23 58172 0.0027 0.3296 0.17152
2018 2 24 58173 0.0027 0.3319 0.17060
2018 2 25 58174 0.0024 0.3340 0.16979
2018 2 26 58175 0.0022 0.3359 0.16904
2018 2 27 58176 0.0019 0.3378 0.16829
2018 2 28 58177 0.0017 0.3396 0.16749
2018 3 1 58178 0.0015 0.3414 0.16660
2018 3 2 58179 0.0013 0.3432 0.16558
2018 3 3 58180 0.0012 0.3450 0.16445
2018 3 4 58181 0.0010 0.3467 0.16325
2018 3 5 58182 0.0009 0.3485 0.16203
2018 3 6 58183 0.0009 0.3503 0.16088
2018 3 7 58184 0.0008 0.3520 0.15983
2018 3 8 58185 0.0008 0.3538 0.15889
2018 3 9 58186 0.0008 0.3555 0.15804
2018 3 10 58187 0.0008 0.3572 0.15724
2018 3 11 58188 0.0009 0.3589 0.15645
2018 3 12 58189 0.0011 0.3607 0.15563
2018 3 13 58190 0.0013 0.3624 0.15474
2018 3 14 58191 0.0015 0.3641 0.15372
2018 3 15 58192 0.0017 0.3659 0.15254
2018 3 16 58193 0.0019 0.3676 0.15118
2018 3 17 58194 0.0022 0.3693 0.14965
2018 3 18 58195 0.0025 0.3710 0.14800
2018 3 19 58196 0.0029 0.3727 0.14627
2018 3 20 58197 0.0033 0.3744 0.14454
2018 3 21 58198 0.0037 0.3761 0.14288
2018 3 22 58199 0.0042 0.3778 0.14134
2018 3 23 58200 0.0047 0.3795 0.13994
2018 3 24 58201 0.0052 0.3811 0.13868
2018 3 25 58202 0.0057 0.3828 0.13751
2018 3 26 58203 0.0063 0.3845 0.13637
2018 3 27 58204 0.0069 0.3861 0.13519
2018 3 28 58205 0.0076 0.3877 0.13391
2018 3 29 58206 0.0083 0.3894 0.13251
2018 3 30 58207 0.0090 0.3910 0.13099
2018 3 31 58208 0.0097 0.3926 0.12941
2018 4 1 58209 0.0105 0.3942 0.12783
2018 4 2 58210 0.0113 0.3958 0.12632
2018 4 3 58211 0.0121 0.3974 0.12494
2018 4 4 58212 0.0130 0.3989 0.12370
2018 4 5 58213 0.0139 0.4005 0.12260
2018 4 6 58214 0.0148 0.4020 0.12163
2018 4 7 58215 0.0158 0.4035 0.12075
2018 4 8 58216 0.0168 0.4050 0.11991
2018 4 9 58217 0.0178 0.4065 0.11906
2018 4 10 58218 0.0188 0.4080 0.11815
2018 4 11 58219 0.0199 0.4095 0.11714
2018 4 12 58220 0.0210 0.4109 0.11599
2018 4 13 58221 0.0221 0.4124 0.11468
2018 4 14 58222 0.0232 0.4138 0.11323
2018 4 15 58223 0.0244 0.4152 0.11166
2018 4 16 58224 0.0256 0.4166 0.11003
2018 4 17 58225 0.0269 0.4179 0.10843
2018 4 18 58226 0.0281 0.4193 0.10691
2018 4 19 58227 0.0294 0.4206 0.10553
2018 4 20 58228 0.0307 0.4219 0.10429
2018 4 21 58229 0.0320 0.4232 0.10315
2018 4 22 58230 0.0334 0.4245 0.10206
2018 4 23 58231 0.0348 0.4257 0.10095
2018 4 24 58232 0.0362 0.4269 0.09975
2018 4 25 58233 0.0376 0.4282 0.09843
2018 4 26 58234 0.0390 0.4293 0.09701
2018 4 27 58235 0.0405 0.4305 0.09551
2018 4 28 58236 0.0420 0.4316 0.09400
2018 4 29 58237 0.0435 0.4328 0.09256
2018 4 30 58238 0.0451 0.4339 0.09123
2018 5 1 58239 0.0466 0.4349 0.09006
2018 5 2 58240 0.0482 0.4360 0.08905
2018 5 3 58241 0.0498 0.4370 0.08819
2018 5 4 58242 0.0514 0.4380 0.08745
2018 5 5 58243 0.0531 0.4390 0.08679
2018 5 6 58244 0.0547 0.4400 0.08616
2018 5 7 58245 0.0564 0.4409 0.08551
2018 5 8 58246 0.0581 0.4418 0.08480
2018 5 9 58247 0.0598 0.4427 0.08399
2018 5 10 58248 0.0615 0.4435 0.08306
2018 5 11 58249 0.0632 0.4444 0.08201
2018 5 12 58250 0.0650 0.4452 0.08085
2018 5 13 58251 0.0668 0.4459 0.07963
2018 5 14 58252 0.0686 0.4467 0.07840
2018 5 15 58253 0.0704 0.4474 0.07724
2018 5 16 58254 0.0722 0.4481 0.07621
2018 5 17 58255 0.0740 0.4488 0.07534
2018 5 18 58256 0.0758 0.4494 0.07460
2018 5 19 58257 0.0777 0.4500 0.07395
2018 5 20 58258 0.0795 0.4506 0.07330
2018 5 21 58259 0.0814 0.4512 0.07259
2018 5 22 58260 0.0833 0.4517 0.07179
2018 5 23 58261 0.0852 0.4522 0.07091
2018 5 24 58262 0.0871 0.4527 0.06996
2018 5 25 58263 0.0890 0.4531 0.06900
2018 5 26 58264 0.0909 0.4535 0.06810
2018 5 27 58265 0.0928 0.4539 0.06729
2018 5 28 58266 0.0948 0.4543 0.06663
2018 5 29 58267 0.0967 0.4546 0.06613
2018 5 30 58268 0.0987 0.4549 0.06578
2018 5 31 58269 0.1006 0.4552 0.06557
2018 6 1 58270 0.1026 0.4554 0.06545
2018 6 2 58271 0.1045 0.4556 0.06538
2018 6 3 58272 0.1065 0.4558 0.06532
2018 6 4 58273 0.1085 0.4560 0.06522
2018 6 5 58274 0.1104 0.4561 0.06504
2018 6 6 58275 0.1124 0.4562 0.06475
2018 6 7 58276 0.1144 0.4563 0.06435
2018 6 8 58277 0.1164 0.4563 0.06383
2018 6 9 58278 0.1183 0.4563 0.06322
2018 6 10 58279 0.1203 0.4563 0.06257
2018 6 11 58280 0.1223 0.4562 0.06194
2018 6 12 58281 0.1242 0.4561 0.06140
2018 6 13 58282 0.1262 0.4560 0.06098
2018 6 14 58283 0.1282 0.4559 0.06070
2018 6 15 58284 0.1301 0.4557 0.06051
2018 6 16 58285 0.1321 0.4555 0.06035
2018 6 17 58286 0.1341 0.4553 0.06013
2018 6 18 58287 0.1360 0.4550 0.05981
2018 6 19 58288 0.1380 0.4547 0.05939
2018 6 20 58289 0.1399 0.4544 0.05890
2018 6 21 58290 0.1418 0.4540 0.05840
2018 6 22 58291 0.1438 0.4537 0.05794
2018 6 23 58292 0.1457 0.4533 0.05757
2018 6 24 58293 0.1476 0.4528 0.05734
2018 6 25 58294 0.1495 0.4524 0.05726
2018 6 26 58295 0.1514 0.4519 0.05733
2018 6 27 58296 0.1533 0.4513 0.05752
2018 6 28 58297 0.1551 0.4508 0.05782
2018 6 29 58298 0.1570 0.4502 0.05816
2018 6 30 58299 0.1588 0.4496 0.05852
2018 7 1 58300 0.1607 0.4490 0.05884
2018 7 2 58301 0.1625 0.4483 0.05909
2018 7 3 58302 0.1643 0.4476 0.05923
2018 7 4 58303 0.1661 0.4469 0.05925
2018 7 5 58304 0.1679 0.4461 0.05916
2018 7 6 58305 0.1697 0.4454 0.05897
2018 7 7 58306 0.1714 0.4446 0.05872
2018 7 8 58307 0.1732 0.4437 0.05846
2018 7 9 58308 0.1749 0.4429 0.05823
2018 7 10 58309 0.1766 0.4420 0.05809
2018 7 11 58310 0.1783 0.4411 0.05805
2018 7 12 58311 0.1799 0.4402 0.05811
2018 7 13 58312 0.1816 0.4392 0.05820
2018 7 14 58313 0.1832 0.4382 0.05824
2018 7 15 58314 0.1849 0.4372 0.05817
2018 7 16 58315 0.1865 0.4362 0.05795
2018 7 17 58316 0.1880 0.4351 0.05763
2018 7 18 58317 0.1896 0.4341 0.05724
2018 7 19 58318 0.1911 0.4329 0.05688
2018 7 20 58319 0.1926 0.4318 0.05661
2018 7 21 58320 0.1941 0.4307 0.05647
2018 7 22 58321 0.1956 0.4295 0.05647
2018 7 23 58322 0.1970 0.4283 0.05661
2018 7 24 58323 0.1985 0.4271 0.05688
2018 7 25 58324 0.1999 0.4259 0.05723
2018 7 26 58325 0.2012 0.4246 0.05764
2018 7 27 58326 0.2026 0.4233 0.05805
2018 7 28 58327 0.2039 0.4220 0.05841
2018 7 29 58328 0.2052 0.4207 0.05869
2018 7 30 58329 0.2065 0.4193 0.05886
2018 7 31 58330 0.2078 0.4180 0.05890
2018 8 1 58331 0.2090 0.4166 0.05881
2018 8 2 58332 0.2102 0.4152 0.05861
2018 8 3 58333 0.2114 0.4138 0.05833
2018 8 4 58334 0.2125 0.4124 0.05802
2018 8 5 58335 0.2136 0.4109 0.05772
2018 8 6 58336 0.2147 0.4094 0.05747
2018 8 7 58337 0.2158 0.4080 0.05730
2018 8 8 58338 0.2168 0.4065 0.05721
2018 8 9 58339 0.2178 0.4049 0.05715
2018 8 10 58340 0.2188 0.4034 0.05705
2018 8 11 58341 0.2197 0.4019 0.05684
2018 8 12 58342 0.2206 0.4003 0.05646
2018 8 13 58343 0.2215 0.3987 0.05591
2018 8 14 58344 0.2224 0.3971 0.05525
2018 8 15 58345 0.2232 0.3955 0.05457
2018 8 16 58346 0.2240 0.3939 0.05395
2018 8 17 58347 0.2248 0.3923 0.05345
2018 8 18 58348 0.2255 0.3906 0.05311
2018 8 19 58349 0.2262 0.3890 0.05294
2018 8 20 58350 0.2269 0.3873 0.05291
2018 8 21 58351 0.2275 0.3857 0.05300
2018 8 22 58352 0.2281 0.3840 0.05316
2018 8 23 58353 0.2287 0.3823 0.05336
2018 8 24 58354 0.2292 0.3806 0.05356
2018 8 25 58355 0.2298 0.3789 0.05372
2018 8 26 58356 0.2302 0.3772 0.05381
2018 8 27 58357 0.2307 0.3755 0.05383
2018 8 28 58358 0.2311 0.3737 0.05376
2018 8 29 58359 0.2315 0.3720 0.05364
2018 8 30 58360 0.2318 0.3702 0.05349
2018 8 31 58361 0.2321 0.3685 0.05333
2018 9 1 58362 0.2324 0.3667 0.05319
2018 9 2 58363 0.2327 0.3650 0.05309
2018 9 3 58364 0.2329 0.3632 0.05303
2018 9 4 58365 0.2330 0.3615 0.05300
2018 9 5 58366 0.2332 0.3597 0.05296
2018 9 6 58367 0.2333 0.3579 0.05284
2018 9 7 58368 0.2334 0.3562 0.05257
2018 9 8 58369 0.2334 0.3544 0.05210
2018 9 9 58370 0.2334 0.3526 0.05140
2018 9 10 58371 0.2334 0.3508 0.05050
2018 9 11 58372 0.2334 0.3491 0.04949
2018 9 12 58373 0.2333 0.3473 0.04846
2018 9 13 58374 0.2332 0.3455 0.04750
2018 9 14 58375 0.2330 0.3438 0.04666
2018 9 15 58376 0.2328 0.3420 0.04597
2018 9 16 58377 0.2326 0.3402 0.04540
2018 9 17 58378 0.2323 0.3385 0.04492
2018 9 18 58379 0.2321 0.3367 0.04447
2018 9 19 58380 0.2317 0.3350 0.04401
2018 9 20 58381 0.2314 0.3332 0.04349
2018 9 21 58382 0.2310 0.3315 0.04285
2018 9 22 58383 0.2306 0.3297 0.04205
2018 9 23 58384 0.2301 0.3280 0.04108
2018 9 24 58385 0.2296 0.3263 0.03994
2018 9 25 58386 0.2291 0.3246 0.03863
2018 9 26 58387 0.2286 0.3229 0.03720
2018 9 27 58388 0.2280 0.3212 0.03570
2018 9 28 58389 0.2274 0.3195 0.03419
2018 9 29 58390 0.2267 0.3178 0.03275
2018 9 30 58391 0.2260 0.3161 0.03140
2018 10 1 58392 0.2253 0.3145 0.03014
2018 10 2 58393 0.2246 0.3128 0.02891
2018 10 3 58394 0.2238 0.3112 0.02767
2018 10 4 58395 0.2230 0.3095 0.02633
2018 10 5 58396 0.2222 0.3079 0.02490
2018 10 6 58397 0.2213 0.3063 0.02327
2018 10 7 58398 0.2204 0.3047 0.02151
2018 10 8 58399 0.2195 0.3032 0.01967
2018 10 9 58400 0.2185 0.3016 0.01784
2018 10 10 58401 0.2176 0.3000 0.01605
2018 10 11 58402 0.2166 0.2985 0.01436
2018 10 12 58403 0.2155 0.2970 0.01281
2018 10 13 58404 0.2144 0.2955 0.01144
2018 10 14 58405 0.2133 0.2940 0.01030
2018 10 15 58406 0.2122 0.2925 0.00925
2018 10 16 58407 0.2111 0.2911 0.00830
2018 10 17 58408 0.2099 0.2896 0.00734
2018 10 18 58409 0.2087 0.2882 0.00625
2018 10 19 58410 0.2075 0.2868 0.00495
2018 10 20 58411 0.2062 0.2855 0.00350
2018 10 21 58412 0.2049 0.2841 0.00189
2018 10 22 58413 0.2036 0.2827 0.00012
2018 10 23 58414 0.2023 0.2814 -0.00170
2018 10 24 58415 0.2009 0.2801 -0.00356
2018 10 25 58416 0.1995 0.2788 -0.00543
2018 10 26 58417 0.1981 0.2776 -0.00723
2018 10 27 58418 0.1967 0.2763 -0.00886
2018 10 28 58419 0.1953 0.2751 -0.01037
2018 10 29 58420 0.1938 0.2739 -0.01173
2018 10 30 58421 0.1923 0.2728 -0.01302
2018 10 31 58422 0.1908 0.2716 -0.01439
2018 11 1 58423 0.1892 0.2705 -0.01584
2018 11 2 58424 0.1877 0.2694 -0.01735
2018 11 3 58425 0.1861 0.2683 -0.01899
2018 11 4 58426 0.1845 0.2672 -0.02080
2018 11 5 58427 0.1829 0.2662 -0.02271
2018 11 6 58428 0.1813 0.2652 -0.02459
2018 11 7 58429 0.1796 0.2642 -0.02635
2018 11 8 58430 0.1779 0.2633 -0.02795
2018 11 9 58431 0.1762 0.2623 -0.02932
2018 11 10 58432 0.1745 0.2614 -0.03054
2018 11 11 58433 0.1728 0.2606 -0.03163
2018 11 12 58434 0.1711 0.2597 -0.03265
2018 11 13 58435 0.1693 0.2589 -0.03353
2018 11 14 58436 0.1675 0.2581 -0.03446
2018 11 15 58437 0.1658 0.2573 -0.03552
2018 11 16 58438 0.1640 0.2566 -0.03667
2018 11 17 58439 0.1622 0.2558 -0.03801
2018 11 18 58440 0.1603 0.2551 -0.03950
2018 11 19 58441 0.1585 0.2545 -0.04109
2018 11 20 58442 0.1567 0.2538 -0.04280
2018 11 21 58443 0.1548 0.2532 -0.04460
2018 11 22 58444 0.1529 0.2527 -0.04636
2018 11 23 58445 0.1510 0.2521 -0.04804
2018 11 24 58446 0.1492 0.2516 -0.04965
2018 11 25 58447 0.1473 0.2511 -0.05117
2018 11 26 58448 0.1454 0.2506 -0.05267
2018 11 27 58449 0.1434 0.2502 -0.05417
2018 11 28 58450 0.1415 0.2498 -0.05572
2018 11 29 58451 0.1396 0.2494 -0.05742
2018 11 30 58452 0.1377 0.2491 -0.05929
2018 12 1 58453 0.1357 0.2488 -0.06127
2018 12 2 58454 0.1338 0.2485 -0.06329
2018 12 3 58455 0.1318 0.2482 -0.06525
2018 12 4 58456 0.1299 0.2480 -0.06709
2018 12 5 58457 0.1279 0.2478 -0.06871
2018 12 6 58458 0.1260 0.2476 -0.07015
2018 12 7 58459 0.1240 0.2475 -0.07150
2018 12 8 58460 0.1221 0.2474 -0.07272
2018 12 9 58461 0.1201 0.2473 -0.07382
2018 12 10 58462 0.1181 0.2472 -0.07484
2018 12 11 58463 0.1162 0.2472 -0.07579
2018 12 12 58464 0.1142 0.2472 -0.07674
2018 12 13 58465 0.1122 0.2473 -0.07776
2018 12 14 58466 0.1103 0.2473 -0.07890
2018 12 15 58467 0.1083 0.2474 -0.08021
2018 12 16 58468 0.1064 0.2476 -0.08168
2018 12 17 58469 0.1044 0.2477 -0.08326
2018 12 18 58470 0.1025 0.2479 -0.08482
2018 12 19 58471 0.1005 0.2481 -0.08639
2018 12 20 58472 0.0986 0.2484 -0.08793
2018 12 21 58473 0.0967 0.2487 -0.08935
2018 12 22 58474 0.0948 0.2490 -0.09062
2018 12 23 58475 0.0928 0.2493 -0.09177
2018 12 24 58476 0.0909 0.2497 -0.09283
2018 12 25 58477 0.0890 0.2501 -0.09390
2018 12 26 58478 0.0871 0.2505 -0.09518
2018 12 27 58479 0.0853 0.2510 -0.09663
2018 12 28 58480 0.0834 0.2514 -0.09815
2018 12 29 58481 0.0815 0.2520 -0.09968
2018 12 30 58482 0.0797 0.2525 -0.10117
2018 12 31 58483 0.0778 0.2531 -0.10263
2019 1 1 58484 0.0760 0.2537 -0.10397
2019 1 2 58485 0.0742 0.2543 -0.10513
2019 1 3 58486 0.0724 0.2549 -0.10611
2019 1 4 58487 0.0706 0.2556 -0.10700
2019 1 5 58488 0.0688 0.2563 -0.10781
2019 1 6 58489 0.0671 0.2571 -0.10867
2019 1 7 58490 0.0653 0.2578 -0.10951
2019 1 8 58491 0.0636 0.2586 -0.11038
2019 1 9 58492 0.0619 0.2594 -0.11133
2019 1 10 58493 0.0602 0.2603 -0.11237
2019 1 11 58494 0.0585 0.2611 -0.11350
2019 1 12 58495 0.0569 0.2620 -0.11472
2019 1 13 58496 0.0552 0.2630 -0.11611
2019 1 14 58497 0.0536 0.2639 -0.11761
2019 1 15 58498 0.0520 0.2649 -0.11914
2019 1 16 58499 0.0504 0.2659 -0.12060
2019 1 17 58500 0.0488 0.2669 -0.12191
2019 1 18 58501 0.0473 0.2679 -0.12312
2019 1 19 58502 0.0458 0.2690 -0.12419
2019 1 20 58503 0.0443 0.2701 -0.12514
2019 1 21 58504 0.0428 0.2712 -0.12601
2019 1 22 58505 0.0413 0.2723 -0.12694
2019 1 23 58506 0.0399 0.2735 -0.12809
2019 1 24 58507 0.0385 0.2747 -0.12945
2019 1 25 58508 0.0371 0.2759 -0.13091
2019 1 26 58509 0.0357 0.2771 -0.13239
2019 1 27 58510 0.0344 0.2783 -0.13374
2019 1 28 58511 0.0330 0.2796 -0.13497
2019 1 29 58512 0.0318 0.2809 -0.13602
2019 1 30 58513 0.0305 0.2822 -0.13694
2019 1 31 58514 0.0292 0.2835 -0.13774
2019 2 1 58515 0.0280 0.2849 -0.13841
2019 2 2 58516 0.0268 0.2862 -0.13901
2019 2 3 58517 0.0257 0.2876 -0.13962
2019 2 4 58518 0.0245 0.2890 -0.14024
2019 2 5 58519 0.0234 0.2904 -0.14090
2019 2 6 58520 0.0224 0.2919 -0.14172
2019 2 7 58521 0.0213 0.2933 -0.14268
2019 2 8 58522 0.0203 0.2948 -0.14374
2019 2 9 58523 0.0193 0.2963 -0.14498
2019 2 10 58524 0.0183 0.2978 -0.14625
2019 2 11 58525 0.0174 0.2993 -0.14752
2019 2 12 58526 0.0165 0.3008 -0.14877
2019 2 13 58527 0.0156 0.3023 -0.14992
2019 2 14 58528 0.0148 0.3039 -0.15099
2019 2 15 58529 0.0140 0.3055 -0.15198
2019 2 16 58530 0.0132 0.3070 -0.15293
2019 2 17 58531 0.0124 0.3086 -0.15395
2019 2 18 58532 0.0117 0.3102 -0.15512
2019 2 19 58533 0.0110 0.3119 -0.15648
2019 2 20 58534 0.0103 0.3135 -0.15800
2019 2 21 58535 0.0097 0.3151 -0.15967
2019 2 22 58536 0.0091 0.3168 -0.16143
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)
58145 -103.91 0.10 -8.42 0.04
58146 -104.50 0.30 -8.46 0.05
58147 -105.11 0.30 -8.63 0.05
58148 -105.36 0.30 -8.76 0.05
58149 -105.10 0.30 -8.77 0.04
58150 -104.47 0.30 -8.76 0.04
58151 -103.78 0.30 -8.88 0.04
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
58145 0.165 0.040 -0.244 0.040
58146 0.159 0.119 -0.282 0.050
58147 0.178 0.119 -0.279 0.050
58148 0.195 0.119 -0.241 0.050
58149 0.181 0.119 -0.232 0.040
58150 0.146 0.119 -0.261 0.040
58151 0.113 0.119 -0.312 0.040
The recommended software to predict celestial pole offsets can be found at
<http://www.usno.navy.mil/USNO/earth-orientation/software/aux/ceppred.f>
and software for the calculation of the dX and dY components with
respect to IAU2000A Nutation/Precession Theory can be found at the
<http://maia.usno.navy.mil/conv2010/conventions.html>
web site in Chapter 5 Section 5.5 of the IERS Conventions (2010).