BULLETIN B 441
1 November 2024
Contents are described in https://hpiers.obspm.fr/iers/bul/bulb_new/bulletinb.pdf
1 - DAILY FINAL VALUES OF x, y, UT1-UTC, dX, dY
Angular unit is milliarcsecond (mas), time unit is millisecond (ms).
Upgraded solution from March 1 2017 - consistent with ITRF 2014.
DATE MJD x y UT1-UTC dX dY x err y err UT1 err dX err dY err
(0 h UTC) mas mas ms mas mas mas mas ms mas mas
Final values
Mean formal error 0.051 0.042 0.0166 0.094 0.101
2024 9 2 60555 208.836 445.516 52.4730 0.378 -0.012 0.051 0.044 0.0343 0.110 0.112
2024 9 3 60556 209.627 443.866 52.9405 0.349 -0.051 0.051 0.046 0.0447 0.122 0.123
2024 9 4 60557 210.381 442.805 53.3112 0.328 -0.079 0.050 0.047 0.0429 0.111 0.111
2024 9 5 60558 211.378 441.867 53.6078 0.315 -0.097 0.050 0.047 0.0342 0.088 0.086
2024 9 6 60559 212.399 440.903 53.8454 0.309 -0.104 0.051 0.046 0.0269 0.069 0.064
2024 9 7 60560 213.522 439.897 54.0905 0.333 -0.079 0.051 0.045 0.0214 0.062 0.057
2024 9 8 60561 214.145 438.683 54.4533 0.372 -0.037 0.053 0.044 0.0163 0.055 0.050
2024 9 9 60562 214.682 437.224 54.9795 0.410 0.004 0.053 0.044 0.0165 0.047 0.043
2024 9 10 60563 215.302 435.724 55.6495 0.439 0.034 0.051 0.043 0.0161 0.042 0.037
2024 9 11 60564 215.948 434.114 56.4387 0.424 0.018 0.050 0.042 0.0178 0.043 0.037
2024 9 12 60565 216.326 432.598 57.2943 0.393 -0.020 0.050 0.042 0.0187 0.045 0.039
2024 9 13 60566 217.411 430.810 58.1176 0.361 -0.066 0.053 0.041 0.0169 0.048 0.041
2024 9 14 60567 218.948 429.360 58.8092 0.363 -0.108 0.052 0.041 0.0145 0.046 0.040
2024 9 15 60568 220.141 427.937 59.2782 0.382 -0.144 0.051 0.041 0.0126 0.042 0.036
2024 9 16 60569 220.923 426.784 59.4069 0.404 -0.174 0.049 0.040 0.0123 0.038 0.033
2024 9 17 60570 221.605 425.567 59.1659 0.420 -0.193 0.050 0.040 0.0071 0.035 0.030
2024 9 18 60571 221.791 424.275 58.6181 0.409 -0.195 0.050 0.039 0.0073 0.038 0.032
2024 9 19 60572 221.503 423.026 57.9192 0.383 -0.184 0.052 0.040 0.0077 0.044 0.037
2024 9 20 60573 221.452 421.708 57.2990 0.344 -0.161 0.054 0.039 0.0079 0.049 0.041
2024 9 21 60574 222.222 420.829 56.9088 0.252 -0.112 0.054 0.040 0.0081 0.066 0.055
2024 9 22 60575 223.190 420.156 56.7834 0.146 -0.053 0.055 0.040 0.0087 0.098 0.080
2024 9 23 60576 223.872 419.449 56.9452 0.067 -0.003 0.053 0.041 0.0089 0.130 0.104
2024 9 24 60577 224.457 418.689 57.3175 0.043 0.026 0.053 0.041 0.0094 0.150 0.120
2024 9 25 60578 224.798 417.556 57.7918 0.140 0.008 0.052 0.041 0.0086 0.206 0.166
2024 9 26 60579 224.988 416.403 58.2640 0.265 -0.031 0.050 0.042 0.0081 0.265 0.214
2024 9 27 60580 225.003 414.973 58.6637 0.362 -0.076 0.051 0.042 0.0110 0.205 0.327
2024 9 28 60581 225.387 413.673 58.9186 0.422 -0.102 0.049 0.043 0.0120 0.179 0.333
2024 9 29 60582 225.338 412.058 59.0576 0.444 -0.105 0.048 0.043 0.0126 0.158 0.274
2024 9 30 60583 225.552 409.842 59.0883 0.441 -0.091 0.048 0.045 0.0208 0.130 0.196
2024 10 1 60584 226.076 407.878 59.0287 0.420 -0.066 0.049 0.044 0.0151 0.106 0.132
Preliminary extension
2024 10 2 60585 226.526 406.248 58.9716 0.391 -0.031 0.048 0.044 0.0175 0.129 0.135
2024 10 3 60586 226.529 404.952 58.8726 0.359 0.004 0.046 0.041 0.0200 0.174 0.156
2024 10 4 60587 226.567 403.804 58.7702 0.333 0.033 0.045 0.038 0.0237 0.216 0.176
2024 10 5 60588 226.284 402.858 58.7274 0.334 0.032 0.044 0.037 0.0235 0.206 0.166
2024 10 6 60589 226.000 401.492 58.7507 0.355 0.010 0.044 0.036 0.0207 0.168 0.137
2024 10 7 60590 225.830 400.305 58.8894 0.386 -0.021 0.043 0.035 0.0197 0.124 0.104
2024 10 8 60591 225.672 398.781 59.1908 0.422 -0.056 0.042 0.034 0.0203 0.093 0.080
2024 10 9 60592 225.557 397.080 59.5897 0.457 -0.082 0.042 0.034 0.0213 0.089 0.081
2024 10 10 60593 226.137 395.463 59.9823 0.489 -0.103 0.041 0.033 0.0225 0.089 0.089
2024 10 11 60594 226.659 393.897 60.3260 0.517 -0.120 0.042 0.034 0.0237 0.089 0.096
2024 10 12 60595 226.540 392.359 60.5238 0.535 -0.134 0.041 0.034 0.0232 0.093 0.101
2024 10 13 60596 226.274 391.012 60.4209 0.544 -0.142 0.041 0.034 0.0209 0.100 0.107
2024 10 14 60597 225.977 389.780 59.9030 0.545 -0.142 0.041 0.034 0.0195 0.108 0.113
2024 10 15 60598 225.937 388.496 58.9952 0.537 -0.134 0.041 0.034 0.0200 0.113 0.118
2024 10 16 60599 225.748 387.252 57.8362 0.622 -0.104 0.042 0.035 0.0212 0.141 0.155
2024 10 17 60600 225.064 386.126 56.6353 0.652 -0.066 0.043 0.036 0.0223 0.174 0.200
2024 10 18 60601 224.260 384.550 55.6300 0.519 -0.031 0.044 0.036 0.0225 0.195 0.229
2024 10 19 60602 223.706 382.915 54.9714 0.216 0.059 0.046 0.037 0.0221 0.500 0.500
2024 10 20 60603 223.364 381.242 54.6984 0.227 0.070 0.049 0.040 0.0191 0.500 0.500
2024 10 21 60604 223.024 379.826 54.7587 0.243 0.079 0.053 0.043 0.0181 0.500 0.500
2024 10 22 60605 222.402 378.186 55.0205 0.259 0.086 0.056 0.044 0.0186 0.500 0.500
2024 10 23 60606 222.153 376.223 55.3354 0.272 0.087 0.057 0.045 0.0199 0.500 0.500
2024 10 24 60607 221.344 374.740 55.6188 0.283 0.085 0.058 0.045 0.0226 0.500 0.500
2024 10 25 60608 220.329 372.752 55.8022 0.293 0.080 0.058 0.046 0.0257 0.500 0.500
2024 10 26 60609 219.444 371.517 55.8274 0.303 0.077 0.059 0.048 0.0280 0.500 0.500
2024 10 27 60610 218.403 369.945 55.6717 0.311 0.077 0.061 0.051 0.0259 0.500 0.500
2024 10 28 60611 217.923 368.304 55.3223 0.315 0.079 0.066 0.057 0.0257 0.500 0.500
2024 10 29 60612 217.370 367.296 54.8263 0.314 0.080 0.074 0.065 0.0274 0.500 0.500
2024 10 30 60613 216.740 366.288 54.3074 0.307 0.078 0.086 0.078 0.0303 0.500 0.500
2024 10 31 60614 216.095 365.630 53.8737 0.300 0.072 0.101 0.095 0.0365 0.500 0.500
2024 11 1 60615 215.212 365.034 53.5586 0.295 0.063 0.129 0.126 0.0446 0.500 0.500
2 - DAILY FINAL VALUES OF CELESTIAL POLE OFFSETS dPsi1980 & dEps1980
dPsi1980 dEps1980 ....dPsi,dEps / IAU 1980 precession-nutation model
Description : ftp://hpiers.obspm.fr/iers/bul/bulb_new/bulletinb.pdf
The Reference Systems are described in the 2006 IERS Annual Report.
DATE MJD dPsi1980 dEps1980 sig dPsi sig dEps
(0 h UTC) mas mas mas mas
2024 9 2 60555 -120.087 -9.708 0.277 0.112
2024 9 3 60556 -120.055 -9.246 0.306 0.123
2024 9 4 60557 -120.122 -8.882 0.278 0.111
2024 9 5 60558 -120.262 -8.828 0.222 0.086
2024 9 6 60559 -120.400 -9.050 0.173 0.064
2024 9 7 60560 -120.395 -9.318 0.155 0.057
2024 9 8 60561 -120.299 -9.520 0.138 0.050
2024 9 9 60562 -120.292 -9.724 0.119 0.043
2024 9 10 60563 -120.460 -10.002 0.106 0.037
2024 9 11 60564 -120.696 -10.286 0.108 0.037
2024 9 12 60565 -120.672 -10.362 0.114 0.039
2024 9 13 60566 -120.368 -10.190 0.119 0.041
2024 9 14 60567 -119.978 -9.957 0.116 0.040
2024 9 15 60568 -119.731 -9.816 0.106 0.036
2024 9 16 60569 -119.673 -9.698 0.096 0.033
2024 9 17 60570 -119.821 -9.516 0.088 0.030
2024 9 18 60571 -120.193 -9.406 0.096 0.032
2024 9 19 60572 -120.539 -9.553 0.110 0.037
2024 9 20 60573 -120.622 -9.815 0.122 0.041
2024 9 21 60574 -120.685 -9.829 0.167 0.055
2024 9 22 60575 -120.988 -9.555 0.247 0.080
2024 9 23 60576 -121.470 -9.329 0.326 0.104
2024 9 24 60577 -121.744 -9.412 0.377 0.120
2024 9 25 60578 -121.423 -9.699 0.517 0.166
2024 9 26 60579 -120.835 -9.870 0.666 0.214
2024 9 27 60580 -120.272 -9.817 0.516 0.327
2024 9 28 60581 -119.786 -9.625 0.451 0.333
2024 9 29 60582 -119.382 -9.373 0.397 0.274
2024 9 30 60583 -119.099 -9.035 0.326 0.196
2024 10 1 60584 -118.970 -8.612 0.267 0.132
3 - EARTH ANGULAR VELOCITY : DAILY FINAL VALUES OF LOD, OMEGA AT 0hUTC
LOD : Excess of the Length of day - 86400 s TAI
OMEGA : Earth angular velocity
Description: ftp://hpiers.obspm.fr/iers/bul/bulb_new/bulletinb.pdf
DATE MJD LOD sigma OMEGA sigma
(0 h UTC) ms ms mas/ms mas/ms
2024 9 2 60555 -0.5332 0.0300 15.04106727149 0.00000000522
2024 9 3 60556 -0.4069 0.0325 15.04106724951 0.00000000566
2024 9 4 60557 -0.3306 0.0304 15.04106723622 0.00000000529
2024 9 5 60558 -0.2673 0.0303 15.04106722520 0.00000000527
2024 9 6 60559 -0.2326 0.0298 15.04106721916 0.00000000519
2024 9 7 60560 -0.2884 0.0317 15.04106722888 0.00000000552
2024 9 8 60561 -0.4450 0.0327 15.04106725614 0.00000000569
2024 9 9 60562 -0.6011 0.0361 15.04106728331 0.00000000628
2024 9 10 60563 -0.7334 0.0325 15.04106730635 0.00000000566
2024 9 11 60564 -0.8358 0.0308 15.04106732417 0.00000000536
2024 9 12 60565 -0.8605 0.0298 15.04106732847 0.00000000519
2024 9 13 60566 -0.7756 0.0287 15.04106731369 0.00000000500
2024 9 14 60567 -0.5960 0.0294 15.04106728243 0.00000000512
2024 9 15 60568 -0.3125 0.0301 15.04106723307 0.00000000524
2024 9 16 60569 0.0616 0.0309 15.04106716795 0.00000000538
2024 9 17 60570 0.4128 0.0293 15.04106710681 0.00000000510
2024 9 18 60571 0.6556 0.0304 15.04106706454 0.00000000529
2024 9 19 60572 0.6950 0.0443 15.04106705768 0.00000000771
2024 9 20 60573 0.5273 0.0410 15.04106708687 0.00000000714
2024 9 21 60574 0.2636 0.0420 15.04106713278 0.00000000731
2024 9 22 60575 -0.0214 0.0299 15.04106718240 0.00000000521
2024 9 23 60576 -0.2832 0.0283 15.04106722797 0.00000000493
2024 9 24 60577 -0.4479 0.0279 15.04106725664 0.00000000486
2024 9 25 60578 -0.4883 0.0264 15.04106726368 0.00000000460
2024 9 26 60579 -0.4419 0.0248 15.04106725560 0.00000000432
2024 9 27 60580 -0.3327 0.0246 15.04106723659 0.00000000428
2024 9 28 60581 -0.1916 0.0245 15.04106721203 0.00000000427
2024 9 29 60582 -0.0796 0.0242 15.04106719253 0.00000000421
2024 9 30 60583 0.0232 0.0242 15.04106717463 0.00000000421
2024 10 1 60584 0.0623 0.0248 15.04106716782 0.00000000432
4 - INFORMATION ON TIME SCALES
TAI - UTC = 37 s. during period [60555-60584]
No leap second introduced during period [60555-60584]
All information concerning time scales :
- leap seconds announcements : Bulletin C
- DUT1 announcements (UT1-UTC with 0.1 s accuracy) : Bulletin D
can be found at :
- web site : http://hpiers.obspm.fr/eop-pc/
- anonymous ftp://hpiers.obspm.fr/iers/
5 - SUMMARY OF CONTRIBUTED EARTH ORIENTATION PARAMETERS SERIES
This section gives the average precision of the individual series, some of them
contributing to the combination (*) and their average agreement with it.
The period covered is that one of Bulletin B.
Units : micro-arc-seconds for x/y/dX/dY micro-seconds for UT1/LOD
-----------------------------------------------------------------------------
EOP series first line : Mean formal uncertainty
Periods covered second line : Weighted RMS agreement with Bulletin B
-----------------------------------------------------------------------------
x y UT1 LOD dX dY Data Number
VLBI Standards
GSFC
gsf2023a.eoxy 55 61 4 11 42 39 12
60556.21 to 60580.27 189 162 31 19 93 76
USNO
usn2024a.eoxy 49 60 3 - 50 46 7
60556.21 to 60577.21 149 158 25 - 91 16
IVS *
ivs2023a.eoxy 45 74 5 - 34 36 7
60556.23 to 60577.20 155 130 25 - 6 4
ASI
asi2023a.eoxy 105 108 16 - 223 136 10
60556.21 to 60579.00 152 360 39 - 178 137
VIE
vie2023a.eopxy 168 207 10 - - - 16
60556.00 to 60584.00 955 1106 34 - - -
VIE
vie2023a.eoxy - - - - 45 44 9
60556.21 to 60579.00 - - - - 147 58
VLBI Intensive
GSI *
gsiint2d.eopi - - 7 - - - 6
60560.33 to 60582.33 - - 45 - - -
BKG *
bkg2023b.eopi - - 6 - - - 59
60555.25 to 60583.75 - - 38 - - -
GSFC *
gsf2023a.eopi - - 10 - - - 73
60555.25 to 60583.75 - - 28 - - -
IAA *
iaa2021a.eopi - - 9 - - - 69
60555.25 to 60583.75 - - 67 - - -
USNO *
usn2024a.eopi - - 19 - - - 65
60555.75 to 60583.75 - - 38 - - -
VIE
vie2023a.eopi - - 5 - - - 92
60555.25 to 60583.75 - - 32 - - -
DGFI
dgf2024a.eopi - - 6 - - - 35
60555.75 to 60583.75 - - 36 - - -
GPS
CODE
COD0OPSFIN 3 3 - 0 - - 29
60555.50 to 60583.50 35 28 - 16 - -
JPL
JPL0OPSFIN 5 6 - 4 - - 29
60555.50 to 60583.50 45 36 - 17 - -
GFZ
GFZ0OPSFIN 4 4 - 1 - - 29
60555.50 to 60583.50 39 27 - 15 - -
ESA
ESA0OPSFIN 5 6 - 3 - - 29
60555.50 to 60583.50 41 26 - 12 - -
SIO
SIO0OPSFIN 27 25 - 13 - - 29
60555.50 to 60583.50 51 32 - 19 - -
EMR
EMR0OPSRAP 3 3 - 1 - - 29
60555.50 to 60583.50 49 47 - 14 - -
IAA
gnss.res 0 0 - 0 - - 27
60555.50 to 60583.50 49 57 - 29 - -
GRGS
GRG0OPSFIN 269 269 - 0 - - 29
60555.50 to 60583.50 36 23 - 13 - -
ASI
asi*.erp 10 10 - 0 - - 14
60561.50 to 60574.50 24 26 - 83 - -
MIT
MIT0OPSFIN 10 10 - 1 - - 29
60555.50 to 60583.50 59 36 - 19 - -
IGS *
IGS0OPSRAP 10 9 - 3 - - 29
60555.50 to 60583.50 40 30 - 13 - -
IGS *
IGS0OPSFIN 7 7 - 2 - - 29
60555.50 to 60583.50 31 25 - 13 - -
SLR
MCC
tg*.02 177 208 - 34 - - 30
60555.00 to 60584.00 129 134 - 217 - -
IAA
slr_v.dat 64 81 - 4 - - 30
60555.00 to 60584.00 192 281 - 23 - -
ASI
asi.*.eop 50 57 - 13 - - 29
60555.50 to 60583.50 169 148 - 50 - -
ILRS *
ilrsa.eop 32 36 - 7 - - 29
60555.50 to 60583.50 112 158 - 29 - -
BULLETIN A
NEOS
mark3.out 18 19 10 - - - 30
60555.00 to 60584.00 29 23 20 - - -
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