                                                                BULLETIN B 439
                                        			1 September 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      0.054    0.049    0.0220    0.058  0.055 
 
2024   7   2   60493   93.584  478.805   -3.0221    0.214 -0.124    0.048    0.052    0.0171  0.049  0.046
2024   7   3   60494   96.532  478.970   -1.8912    0.246 -0.119    0.049    0.049    0.0178  0.049  0.047
2024   7   4   60495   99.367  478.355   -0.4934    0.299 -0.109    0.049    0.047    0.0235  0.050  0.049
2024   7   5   60496  102.081  478.183    1.1071    0.356 -0.102    0.049    0.047    0.0250  0.051  0.051
2024   7   6   60497  104.384  478.116    2.7521    0.383 -0.121    0.049    0.048    0.0230  0.053  0.054
2024   7   7   60498  106.626  478.237    4.3158    0.391 -0.155    0.049    0.047    0.0201  0.058  0.058
2024   7   8   60499  108.222  478.077    5.7452    0.390 -0.189    0.051    0.049    0.0194  0.063  0.064
2024   7   9   60500  109.808  477.690    7.0037    0.383 -0.218    0.053    0.049    0.0201  0.067  0.068
2024   7  10   60501  111.643  477.240    8.0831    0.378 -0.218    0.053    0.049    0.0215  0.064  0.063
2024   7  11   60502  113.769  476.907    9.0281    0.372 -0.204    0.053    0.049    0.0302  0.057  0.055
2024   7  12   60503  116.050  476.990    9.8811    0.364 -0.186    0.053    0.049    0.0268  0.051  0.048
2024   7  13   60504  118.369  477.464   10.6377    0.352 -0.169    0.052    0.050    0.0251  0.050  0.047
2024   7  14   60505  120.874  478.332   11.3236    0.339 -0.154    0.051    0.049    0.0189  0.051  0.048
2024   7  15   60506  122.868  478.987   12.0611    0.332 -0.142    0.051    0.051    0.0194  0.052  0.048
2024   7  16   60507  125.294  479.556   12.8989    0.333 -0.133    0.053    0.048    0.0212  0.053  0.049
2024   7  17   60508  127.861  479.657   13.8727    0.363 -0.131    0.053    0.046    0.0221  0.055  0.050
2024   7  18   60509  130.527  479.433   14.9814    0.402 -0.133    0.054    0.046    0.0217  0.058  0.053
2024   7  19   60510  132.780  479.318   16.2115    0.437 -0.142    0.054    0.047    0.0203  0.061  0.056
2024   7  20   60511  134.987  479.265   17.4865    0.440 -0.167    0.055    0.047    0.0189  0.061  0.057
2024   7  21   60512  137.353  479.268   18.6901    0.422 -0.199    0.055    0.048    0.0181  0.061  0.058
2024   7  22   60513  140.090  479.014   19.7069    0.395 -0.230    0.058    0.048    0.0194  0.060  0.060
2024   7  23   60514  142.828  478.944   20.4461    0.365 -0.256    0.058    0.051    0.0219  0.059  0.061
2024   7  24   60515  145.562  479.155   20.8869    0.344 -0.261    0.060    0.051    0.0232  0.058  0.059
2024   7  25   60516  148.419  479.456   21.0987    0.327 -0.253    0.059    0.051    0.0225  0.056  0.054
2024   7  26   60517  150.890  479.581   21.1888    0.314 -0.235    0.059    0.050    0.0205  0.055  0.051
2024   7  27   60518  152.928  479.577   21.3034    0.305 -0.198    0.054    0.046    0.0192  0.057  0.052
2024   7  28   60519  154.197  479.385   21.6127    0.301 -0.152    0.061    0.051    0.0186  0.062  0.056
2024   7  29   60520  155.822  478.682   22.1988    0.305 -0.108    0.061    0.051    0.0220  0.068  0.062
2024   7  30   60521  157.410  478.204   23.0289    0.320 -0.073    0.061    0.054    0.0253  0.072  0.065
2024   7  31   60522  159.363  477.611   24.0625    0.367 -0.074    0.060    0.053    0.0285  0.074  0.067
2024   8   1   60523  161.264  477.332   25.2828    0.418 -0.089    0.063    0.052    0.0301  0.075  0.070

 Preliminary extension 
2024   8   2   60524  163.632  476.660   26.5983    0.457 -0.108    0.063    0.052    0.0294  0.076  0.072
2024   8   3   60525  166.551  476.243   27.9122    0.437 -0.118    0.056    0.048    0.0266  0.079  0.073
2024   8   4   60526  168.683  476.171   29.1597    0.378 -0.118    0.050    0.045    0.0236  0.084  0.075
2024   8   5   60527  170.308  475.812   30.2698    0.305 -0.110    0.047    0.043    0.0222  0.089  0.077
2024   8   6   60528  171.986  475.209   31.2209    0.229 -0.090    0.044    0.042    0.0220  0.093  0.078
2024   8   7   60529  173.746  474.102   32.0365    0.168 -0.037    0.043    0.040    0.0226  0.100  0.085
2024   8   8   60530  175.507  472.905   32.7348    0.124  0.022    0.042    0.039    0.0236  0.110  0.098
2024   8   9   60531  177.668  471.805   33.3742    0.101  0.068    0.042    0.038    0.0238  0.119  0.108
2024   8  10   60532  180.072  470.683   34.0411    0.139  0.048    0.042    0.037    0.0214  0.113  0.106
2024   8  11   60533  182.350  469.737   34.8190    0.213 -0.010    0.042    0.036    0.0182  0.099  0.097
2024   8  12   60534  184.120  468.961   35.7487    0.294 -0.081    0.042    0.036    0.0158  0.084  0.087
2024   8  13   60535  185.845  467.802   36.8105    0.366 -0.149    0.042    0.035    0.0145  0.074  0.081
2024   8  14   60536  187.706  466.891   38.0170    0.458 -0.220    0.042    0.035    0.0148  0.092  0.106
2024   8  15   60537  189.330  465.798   39.3450    0.486 -0.251    0.043    0.035    0.0161  0.114  0.136
2024   8  16   60538  190.887  464.836   40.7226    0.387 -0.207    0.044    0.035    0.0166  0.129  0.156
2024   8  17   60539  192.608  463.743   42.0367    0.183 -0.012    0.046    0.036    0.0165  0.500  0.500
2024   8  18   60540  194.539  463.021   43.1582    0.186 -0.021    0.048    0.037    0.0165  0.500  0.500
2024   8  19   60541  196.095  462.501   43.9840    0.181 -0.026    0.051    0.039    0.0166  0.500  0.500
2024   8  20   60542  197.164  461.534   44.4459    0.170 -0.025    0.053    0.041    0.0170  0.500  0.500
2024   8  21   60543  198.491  460.315   44.5871    0.155 -0.016    0.055    0.042    0.0179  0.500  0.500
2024   8  22   60544  200.001  459.199   44.5324    0.139 -0.004    0.056    0.043    0.0182  0.500  0.500
2024   8  23   60545  201.374  458.213   44.4632    0.128  0.010    0.057    0.044    0.0183  0.500  0.500
2024   8  24   60546  202.585  457.231   44.5855    0.125  0.023    0.058    0.044    0.0184  0.500  0.500
2024   8  25   60547  203.457  456.243   44.9796    0.131  0.035    0.058    0.046    0.0196  0.500  0.500
2024   8  26   60548  204.619  454.999   45.6443    0.143  0.046    0.061    0.046    0.0220  0.500  0.500
2024   8  27   60549  205.644  453.822   46.5689    0.157  0.054    0.064    0.048    0.0248  0.500  0.500
2024   8  28   60550  206.215  452.440   47.6571    0.171  0.060    0.070    0.050    0.0285  0.500  0.500
2024   8  29   60551  206.795  451.051   48.8053    0.184  0.061    0.079    0.054    0.0342  0.500  0.500
2024   8  30   60552  207.517  449.843   49.9453    0.195  0.058    0.093    0.060    0.0424  0.500  0.500
2024   8  31   60553  208.120  448.709   50.9518    0.204  0.053    0.113    0.068    0.0537  0.500  0.500
2024   9   1   60554  208.526  447.475   51.7849    0.212  0.048    0.150    0.083    0.0672  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   7   2   60493  -114.375    -9.560     0.122     0.046
2024   7   3   60494  -114.587    -9.597     0.124     0.047
2024   7   4   60495  -114.645    -9.779     0.125     0.049
2024   7   5   60496  -114.548   -10.066     0.127     0.051
2024   7   6   60497  -114.415   -10.336     0.133     0.054
2024   7   7   60498  -114.322   -10.420     0.146     0.058
2024   7   8   60499  -114.330   -10.264     0.160     0.064
2024   7   9   60500  -114.478    -9.990     0.169     0.068
2024   7  10   60501  -114.737    -9.763     0.161     0.063
2024   7  11   60502  -115.029    -9.680     0.143     0.055
2024   7  12   60503  -115.246    -9.670     0.128     0.048
2024   7  13   60504  -115.398    -9.623     0.126     0.047
2024   7  14   60505  -115.627    -9.535     0.128     0.048
2024   7  15   60506  -116.074    -9.519     0.130     0.048
2024   7  16   60507  -116.658    -9.660     0.132     0.049
2024   7  17   60508  -117.045    -9.901     0.138     0.050
2024   7  18   60509  -117.078   -10.104     0.146     0.053
2024   7  19   60510  -116.859   -10.195     0.154     0.056
2024   7  20   60511  -116.672   -10.214     0.154     0.057
2024   7  21   60512  -116.590   -10.186     0.152     0.058
2024   7  22   60513  -116.573   -10.093     0.150     0.060
2024   7  23   60514  -116.656    -9.952     0.148     0.061
2024   7  24   60515  -116.924    -9.851     0.146     0.059
2024   7  25   60516  -117.391    -9.881     0.142     0.054
2024   7  26   60517  -117.884    -9.998     0.138     0.051
2024   7  27   60518  -118.206   -10.063     0.143     0.052
2024   7  28   60519  -118.318   -10.010     0.157     0.056
2024   7  29   60520  -118.360    -9.878     0.171     0.062
2024   7  30   60521  -118.480    -9.761     0.182     0.065
2024   7  31   60522  -118.616    -9.767     0.186     0.067
2024   8   1   60523  -118.672    -9.928     0.189     0.070


 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   7   2   60493 -0.9923  0.0369  15.04106735142    0.00000000642 
2024   7   3   60494 -1.2694  0.0327  15.04106739966    0.00000000569 
2024   7   4   60495 -1.5138  0.0254  15.04106744220    0.00000000442 
2024   7   5   60496 -1.6508  0.0246  15.04106746605    0.00000000428 
2024   7   6   60497 -1.6238  0.0240  15.04106746135    0.00000000418 
2024   7   7   60498 -1.5031  0.0241  15.04106744034    0.00000000420 
2024   7   8   60499 -1.3478  0.0232  15.04106741330    0.00000000404 
2024   7   9   60500 -1.1671  0.0231  15.04106738185    0.00000000402 
2024   7  10   60501 -1.0020  0.0227  15.04106735310    0.00000000395 
2024   7  11   60502 -0.8896  0.0224  15.04106733354    0.00000000390 
2024   7  12   60503 -0.8062  0.0221  15.04106731902    0.00000000385 
2024   7  13   60504 -0.7219  0.0225  15.04106730434    0.00000000392 
2024   7  14   60505 -0.6991  0.0251  15.04106730037    0.00000000437 
2024   7  15   60506 -0.7808  0.0243  15.04106731460    0.00000000423 
2024   7  16   60507 -0.9018  0.0257  15.04106733566    0.00000000447 
2024   7  17   60508 -1.0477  0.0263  15.04106736106    0.00000000458 
2024   7  18   60509 -1.1772  0.0249  15.04106738360    0.00000000433 
2024   7  19   60510 -1.2694  0.0244  15.04106739966    0.00000000425 
2024   7  20   60511 -1.2613  0.0250  15.04106739825    0.00000000435 
2024   7  21   60512 -1.1280  0.0259  15.04106737504    0.00000000451 
2024   7  22   60513 -0.8867  0.0270  15.04106733303    0.00000000470 
2024   7  23   60514 -0.5877  0.0278  15.04106728098    0.00000000484 
2024   7  24   60515 -0.3058  0.0314  15.04106723191    0.00000000547 
2024   7  25   60516 -0.1308  0.0284  15.04106720144    0.00000000494 
2024   7  26   60517 -0.0797  0.0266  15.04106719255    0.00000000463 
2024   7  27   60518 -0.1864  0.0239  15.04106721112    0.00000000416 
2024   7  28   60519 -0.4397  0.0252  15.04106725522    0.00000000439 
2024   7  29   60520 -0.7198  0.0252  15.04106730398    0.00000000439 
2024   7  30   60521 -0.9432  0.0268  15.04106734287    0.00000000467 
2024   7  31   60522 -1.1317  0.0257  15.04106737568    0.00000000447 
2024   8   1   60523 -1.2873  0.0263  15.04106740277    0.00000000458 


 4 - INFORMATION ON TIME SCALES 
     
         
     TAI - UTC = 37 s.         during period [60493-60523]

     No leap second introduced during period [60493-60523]

     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                 50    58     3    10    37    42      12
 60493.21 to 60523.00         150   159    21    13    22    58

 USNO      
 usn2023c.eoxy                 45    60     3     -    43    45      10
 60493.21 to 60521.21         149   278    24     -    52    66

 OPA       
 opa2024a.eops                216   319    16     -    62   218       9
 60500.21 to 60523.00        2642  2368   270     -   420   821

 IVS      *
 ivs2023a.eoxy                 47   112     5     -    35    40       9
 60493.21 to 60521.21         125   253    15     -     4     3

 ASI       
 asi2023a.eoxy                103   125    22     -   180   150      11
 60493.21 to 60521.21         219   402    33     -   103   188

 VIE       
 vie2023a.eopxy               452   991    35     -     -     -      20
 60493.00 to 60522.00         543   867    25     -     -     -


 VLBI Intensive

 GSI      *
 gsiint2d.eopi                  -     -    12     -     -     -       8
 60497.33 to 60519.33           -     -    34     -     -     -

 BKG      *
 bkg2023b.eopi                  -     -     7     -     -     -      64
 60493.75 to 60522.75           -     -    49     -     -     -

 GSFC     *
 gsf2023a.eopi                  -     -    12     -     -     -      75
 60493.75 to 60523.00           -     -    51     -     -     -

 IAA      *
 iaa2021a.eopi                  -     -    31     -     -     -       2
 60493.00 to 60493.75           -     -    19     -     -     -

 USNO     *
 usn2024a.eopi                  -     -    10     -     -     -      50
 60493.00 to 60522.75           -     -    27     -     -     -

 VIE       
 vie2023a.eopxy                 -     -    35     -     -     -      20
 60493.00 to 60522.00           -     -    25     -     -     -

 DGFI      
 dgf2024a.eopi                  -     -     8     -     -     -      37
 60493.75 to 60522.75           -     -    32     -     -     -


 GPS

 CODE      
 COD0OPSFIN                     3     3     -     0     -     -      30
 60493.50 to 60522.50          31    29     -    13     -     -

 JPL       
 JPL0OPSFIN                     9    10     -     5     -     -      30
 60493.50 to 60522.50          49    43     -    21     -     -

 GFZ       
 GFZ0OPSFIN                     4     4     -     1     -     -      30
 60493.50 to 60522.50          35    34     -    12     -     -

 ESA       
 ESA0OPSFIN                     6     6     -     2     -     -      30
 60493.50 to 60522.50          37    29     -    13     -     -

 SIO       
 SIO0OPSFIN                    25    24     -    10     -     -      30
 60493.50 to 60522.50          43    44     -    19     -     -

 EMR       
 EMR0OPSRAP                     4     3     -     0     -     -      30
 60493.50 to 60522.50          75    53     -    16     -     -

 IAA       
 gnss.res                       0     0     -     0     -     -      30
 60493.50 to 60522.50          56    57     -    28     -     -

 GRGS      
 GRG0OPSFIN                   277   277     -     0     -     -      30
 60493.50 to 60522.50          33    27     -    14     -     -

 ASI       
 asi*.erp                      10     9     -     0     -     -      11
 60512.50 to 60522.50          23    31     -    98     -     -

 MIT       
 MIT0OPSFIN                    10    10     -     1     -     -      30
 60493.50 to 60522.50          51    38     -    15     -     -

 IGS      *
 IGS0OPSRAP                    14    12     -     3     -     -      30
 60493.50 to 60522.50          35    32     -    12     -     -

 IGS      *
 IGS0OPSFIN                     8    10     -     2     -     -      30
 60493.50 to 60522.50          32    28     -    12     -     -


 SLR

 MCC       
 tg*.02                       227   270     -    39     -     -      31
 60493.00 to 60523.00         127   295     -   271     -     -

 IAA       
 slr_v.dat                     83    92     -     5     -     -      28
 60493.00 to 60523.00         313   297     -    27     -     -

 ASI       
 asi.*.eop                     69    81     -    20     -     -      30
 60493.50 to 60522.50         213   212     -    78     -     -

 ILRS     *
 ilrsa.eop                     49    57     -    12     -     -      30
 60493.50 to 60522.50         166   149     -    34     -     -


 BULLETIN A

 NEOS      
 mark3.out                     15    20    11     -     -     -      31
 60493.00 to 60523.00          43    61    23     -     -     -

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