                                                                               
      **********************************************************************   
      *                                                                    *   
      *                   I E R S   B U L L E T I N - A                    *   
      *                                                                    *   
      *           Rapid Service/Prediction of Earth Orientation            *   
      **********************************************************************   
      9 April 2020                                       Vol. XXXIII No. 015   
      ______________________________________________________________________   
      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 02 May 2019 at 0000 UTC                 
         Beginning 1 January 2017:                                             
            TAI-UTC = 37.000 000 seconds                                       
     ***********************************************************************
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     ***********************************************************************
     ________________________________________________________________________  
       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               
   20  4  3  58942 0.05393 .00009 0.40515 .00009 -0.225835 0.000007          
   20  4  4  58943 0.05488 .00009 0.40676 .00009 -0.226432 0.000013          
   20  4  5  58944 0.05548 .00009 0.40794 .00009 -0.227324 0.000012          
   20  4  6  58945 0.05589 .00009 0.40881 .00009 -0.228530 0.000011          
   20  4  7  58946 0.05625 .00009 0.40941 .00009 -0.230008 0.000011          
   20  4  8  58947 0.05682 .00009 0.41004 .00009 -0.231629 0.000010          
   20  4  9  58948 0.05759 .00009 0.41099 .00009 -0.233207 0.000010          
                                                                               
      _______________________________________________________________________  
                                                                               
      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 =  0.1326 - 0.0887 cos A + 0.0500 sin A + 0.0147 cos C + 0.0120 sin C  
      y =  0.3520 + 0.0468 cos A + 0.0808 sin A + 0.0120 cos C - 0.0147 sin C  
         UT1-UTC = -0.2089 - 0.00017 (MJD - 58956) - (UT2-UT1)                 
                                                                               
      where A = 2*pi*(MJD-58948)/365.25 and C = 2*pi*(MJD-58948)/435.          
                                                                               
         TAI-UTC(MJD 58949) = 37.0                                             
      The accuracy may be estimated from the expressions:                      
      S x,y = 0.00068 (MJD-58948)**0.80   S t = 0.00025 (MJD-58948)**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)              
       2020  4 10  58949       0.0585      0.4121     -0.23459         
       2020  4 11  58950       0.0595      0.4133     -0.23570         
       2020  4 12  58951       0.0604      0.4145     -0.23649         
       2020  4 13  58952       0.0614      0.4157     -0.23703         
       2020  4 14  58953       0.0624      0.4168     -0.23738         
       2020  4 15  58954       0.0635      0.4177     -0.23763         
       2020  4 16  58955       0.0646      0.4186     -0.23786         
       2020  4 17  58956       0.0658      0.4195     -0.23816         
       2020  4 18  58957       0.0671      0.4204     -0.23856         
       2020  4 19  58958       0.0683      0.4213     -0.23909         
       2020  4 20  58959       0.0696      0.4222     -0.23977         
       2020  4 21  58960       0.0708      0.4231     -0.24057         
       2020  4 22  58961       0.0721      0.4240     -0.24142         
       2020  4 23  58962       0.0733      0.4248     -0.24224         
       2020  4 24  58963       0.0747      0.4257     -0.24295         
       2020  4 25  58964       0.0760      0.4265     -0.24352         
       2020  4 26  58965       0.0775      0.4273     -0.24392         
       2020  4 27  58966       0.0790      0.4281     -0.24413         
       2020  4 28  58967       0.0805      0.4289     -0.24420         
       2020  4 29  58968       0.0820      0.4297     -0.24419         
       2020  4 30  58969       0.0835      0.4304     -0.24419         
       2020  5  1  58970       0.0850      0.4311     -0.24430         
       2020  5  2  58971       0.0866      0.4318     -0.24461         
       2020  5  3  58972       0.0881      0.4324     -0.24518         
       2020  5  4  58973       0.0897      0.4331     -0.24601         
       2020  5  5  58974       0.0913      0.4337     -0.24702         
       2020  5  6  58975       0.0928      0.4343     -0.24808         
       2020  5  7  58976       0.0945      0.4349     -0.24904         
       2020  5  8  58977       0.0961      0.4354     -0.24979         
       2020  5  9  58978       0.0977      0.4360     -0.25028         
       2020  5 10  58979       0.0993      0.4365     -0.25054         
       2020  5 11  58980       0.1010      0.4370     -0.25062         
       2020  5 12  58981       0.1026      0.4374     -0.25061         
       2020  5 13  58982       0.1043      0.4378     -0.25060         
       2020  5 14  58983       0.1060      0.4382     -0.25064         
       2020  5 15  58984       0.1077      0.4386     -0.25077         
       2020  5 16  58985       0.1093      0.4389     -0.25099         
       2020  5 17  58986       0.1110      0.4393     -0.25128         
       2020  5 18  58987       0.1127      0.4396     -0.25161         
       2020  5 19  58988       0.1144      0.4398     -0.25195         
       2020  5 20  58989       0.1161      0.4401     -0.25225         
       2020  5 21  58990       0.1179      0.4403     -0.25248         
       2020  5 22  58991       0.1196      0.4405     -0.25259         
       2020  5 23  58992       0.1213      0.4407     -0.25256         
       2020  5 24  58993       0.1230      0.4408     -0.25238         
       2020  5 25  58994       0.1248      0.4409     -0.25209         
       2020  5 26  58995       0.1265      0.4410     -0.25174         
       2020  5 27  58996       0.1283      0.4410     -0.25141         
       2020  5 28  58997       0.1300      0.4411     -0.25118         
       2020  5 29  58998       0.1317      0.4411     -0.25112         
       2020  5 30  58999       0.1335      0.4410     -0.25128         
       2020  5 31  59000       0.1352      0.4410     -0.25167         
       2020  6  1  59001       0.1370      0.4409     -0.25224         
       2020  6  2  59002       0.1387      0.4408     -0.25290         
       2020  6  3  59003       0.1405      0.4406     -0.25349         
       2020  6  4  59004       0.1422      0.4405     -0.25391         
       2020  6  5  59005       0.1440      0.4403     -0.25407         
       2020  6  6  59006       0.1457      0.4400     -0.25397         
       2020  6  7  59007       0.1474      0.4398     -0.25364         
       2020  6  8  59008       0.1492      0.4395     -0.25319         
       2020  6  9  59009       0.1509      0.4392     -0.25270         
       2020  6 10  59010       0.1526      0.4389     -0.25225         
       2020  6 11  59011       0.1543      0.4385     -0.25187         
       2020  6 12  59012       0.1560      0.4381     -0.25160         
       2020  6 13  59013       0.1578      0.4377     -0.25141         
       2020  6 14  59014       0.1595      0.4373     -0.25129         
       2020  6 15  59015       0.1611      0.4368     -0.25119         
       2020  6 16  59016       0.1628      0.4363     -0.25107         
       2020  6 17  59017       0.1645      0.4358     -0.25088         
       2020  6 18  59018       0.1662      0.4353     -0.25058         
       2020  6 19  59019       0.1678      0.4347     -0.25014         
       2020  6 20  59020       0.1695      0.4341     -0.24955         
       2020  6 21  59021       0.1711      0.4335     -0.24883         
       2020  6 22  59022       0.1727      0.4328     -0.24802         
       2020  6 23  59023       0.1744      0.4322     -0.24719         
       2020  6 24  59024       0.1760      0.4315     -0.24643         
       2020  6 25  59025       0.1776      0.4307     -0.24581         
       2020  6 26  59026       0.1791      0.4300     -0.24539         
       2020  6 27  59027       0.1807      0.4292     -0.24517         
       2020  6 28  59028       0.1823      0.4284     -0.24510         
       2020  6 29  59029       0.1838      0.4276     -0.24512         
       2020  6 30  59030       0.1853      0.4267     -0.24511         
       2020  7  1  59031       0.1868      0.4259     -0.24497         
       2020  7  2  59032       0.1883      0.4250     -0.24462         
       2020  7  3  59033       0.1898      0.4241     -0.24404         
       2020  7  4  59034       0.1912      0.4231     -0.24325         
       2020  7  5  59035       0.1927      0.4222     -0.24232         
       2020  7  6  59036       0.1941      0.4212     -0.24134         
       2020  7  7  59037       0.1955      0.4202     -0.24039         
       2020  7  8  59038       0.1969      0.4191     -0.23952         
       2020  7  9  59039       0.1983      0.4181     -0.23875         
       2020  7 10  59040       0.1996      0.4170     -0.23808         
       2020  7 11  59041       0.2009      0.4159     -0.23750         
       2020  7 12  59042       0.2022      0.4148     -0.23695         
       2020  7 13  59043       0.2035      0.4137     -0.23641         
       2020  7 14  59044       0.2048      0.4125     -0.23583         
       2020  7 15  59045       0.2060      0.4113     -0.23517         
       2020  7 16  59046       0.2072      0.4101     -0.23439         
       2020  7 17  59047       0.2084      0.4089     -0.23350         
       2020  7 18  59048       0.2096      0.4077     -0.23248         
       2020  7 19  59049       0.2108      0.4064     -0.23138         
       2020  7 20  59050       0.2119      0.4052     -0.23025         
       2020  7 21  59051       0.2130      0.4039     -0.22918         
       2020  7 22  59052       0.2141      0.4026     -0.22825         
       2020  7 23  59053       0.2151      0.4012     -0.22753         
       2020  7 24  59054       0.2162      0.3999     -0.22704         
       2020  7 25  59055       0.2172      0.3985     -0.22673         
       2020  7 26  59056       0.2181      0.3972     -0.22653         
       2020  7 27  59057       0.2191      0.3958     -0.22637         
       2020  7 28  59058       0.2200      0.3944     -0.22611         
       2020  7 29  59059       0.2209      0.3930     -0.22566         
       2020  7 30  59060       0.2218      0.3915     -0.22500         
       2020  7 31  59061       0.2226      0.3901     -0.22414         
       2020  8  1  59062       0.2235      0.3886     -0.22315         
       2020  8  2  59063       0.2243      0.3872     -0.22210         
       2020  8  3  59064       0.2250      0.3857     -0.22108         
       2020  8  4  59065       0.2258      0.3842     -0.22014         
       2020  8  5  59066       0.2265      0.3827     -0.21932         
       2020  8  6  59067       0.2271      0.3812     -0.21864         
       2020  8  7  59068       0.2278      0.3796     -0.21806         
       2020  8  8  59069       0.2284      0.3781     -0.21755         
       2020  8  9  59070       0.2290      0.3766     -0.21709         
       2020  8 10  59071       0.2296      0.3750     -0.21660         
       2020  8 11  59072       0.2301      0.3734     -0.21607         
       2020  8 12  59073       0.2306      0.3719     -0.21544         
       2020  8 13  59074       0.2311      0.3703     -0.21471         
       2020  8 14  59075       0.2315      0.3687     -0.21388         
       2020  8 15  59076       0.2319      0.3671     -0.21298         
       2020  8 16  59077       0.2323      0.3655     -0.21204         
       2020  8 17  59078       0.2326      0.3639     -0.21116         
       2020  8 18  59079       0.2330      0.3623     -0.21042         
       2020  8 19  59080       0.2332      0.3606     -0.20992         
       2020  8 20  59081       0.2335      0.3590     -0.20968         
       2020  8 21  59082       0.2337      0.3574     -0.20970         
       2020  8 22  59083       0.2339      0.3557     -0.20989         
       2020  8 23  59084       0.2341      0.3541     -0.21012         
       2020  8 24  59085       0.2342      0.3525     -0.21026         
       2020  8 25  59086       0.2343      0.3508     -0.21021         
       2020  8 26  59087       0.2344      0.3492     -0.20994         
       2020  8 27  59088       0.2344      0.3475     -0.20946         
       2020  8 28  59089       0.2344      0.3459     -0.20884         
       2020  8 29  59090       0.2344      0.3443     -0.20816         
       2020  8 30  59091       0.2343      0.3426     -0.20750         
       2020  8 31  59092       0.2342      0.3410     -0.20692         
       2020  9  1  59093       0.2341      0.3393     -0.20647         
       2020  9  2  59094       0.2339      0.3377     -0.20616         
       2020  9  3  59095       0.2337      0.3360     -0.20599         
       2020  9  4  59096       0.2335      0.3344     -0.20591         
       2020  9  5  59097       0.2333      0.3328     -0.20589         
       2020  9  6  59098       0.2330      0.3311     -0.20588         
       2020  9  7  59099       0.2326      0.3295     -0.20582         
       2020  9  8  59100       0.2323      0.3279     -0.20568         
       2020  9  9  59101       0.2319      0.3263     -0.20544         
       2020  9 10  59102       0.2315      0.3247     -0.20511         
       2020  9 11  59103       0.2311      0.3231     -0.20468         
       2020  9 12  59104       0.2306      0.3215     -0.20422         
       2020  9 13  59105       0.2301      0.3199     -0.20378         
       2020  9 14  59106       0.2295      0.3183     -0.20345         
       2020  9 15  59107       0.2290      0.3167     -0.20332         
       2020  9 16  59108       0.2284      0.3152     -0.20347         
       2020  9 17  59109       0.2278      0.3136     -0.20392         
       2020  9 18  59110       0.2271      0.3121     -0.20461         
       2020  9 19  59111       0.2264      0.3105     -0.20541         
       2020  9 20  59112       0.2257      0.3090     -0.20617         
       2020  9 21  59113       0.2249      0.3075     -0.20677         
       2020  9 22  59114       0.2242      0.3060     -0.20712         
       2020  9 23  59115       0.2233      0.3045     -0.20723         
       2020  9 24  59116       0.2225      0.3030     -0.20715         
       2020  9 25  59117       0.2216      0.3016     -0.20698         
       2020  9 26  59118       0.2207      0.3001     -0.20680         
       2020  9 27  59119       0.2198      0.2987     -0.20669         
       2020  9 28  59120       0.2189      0.2973     -0.20669         
       2020  9 29  59121       0.2179      0.2959     -0.20684         
       2020  9 30  59122       0.2169      0.2945     -0.20712         
       2020 10  1  59123       0.2158      0.2931     -0.20751         
       2020 10  2  59124       0.2148      0.2917     -0.20796         
       2020 10  3  59125       0.2137      0.2904     -0.20843         
       2020 10  4  59126       0.2126      0.2891     -0.20886         
       2020 10  5  59127       0.2114      0.2878     -0.20920         
       2020 10  6  59128       0.2102      0.2865     -0.20944         
       2020 10  7  59129       0.2090      0.2852     -0.20955         
       2020 10  8  59130       0.2078      0.2839     -0.20955         
       2020 10  9  59131       0.2066      0.2827     -0.20947         
       2020 10 10  59132       0.2053      0.2815     -0.20936         
       2020 10 11  59133       0.2040      0.2803     -0.20931         
       2020 10 12  59134       0.2027      0.2791     -0.20938         
       2020 10 13  59135       0.2013      0.2779     -0.20966         
       2020 10 14  59136       0.2000      0.2768     -0.21021         
       2020 10 15  59137       0.1986      0.2757     -0.21102         
       2020 10 16  59138       0.1972      0.2746     -0.21199         
       2020 10 17  59139       0.1957      0.2735     -0.21299         
       2020 10 18  59140       0.1943      0.2725     -0.21388         
       2020 10 19  59141       0.1928      0.2715     -0.21454         
       2020 10 20  59142       0.1913      0.2704     -0.21492         
       2020 10 21  59143       0.1898      0.2695     -0.21505         
       2020 10 22  59144       0.1883      0.2685     -0.21502         
       2020 10 23  59145       0.1867      0.2676     -0.21493         
       2020 10 24  59146       0.1851      0.2667     -0.21485         
       2020 10 25  59147       0.1835      0.2658     -0.21485         
       2020 10 26  59148       0.1819      0.2649     -0.21495         
       2020 10 27  59149       0.1803      0.2641     -0.21515         
       2020 10 28  59150       0.1786      0.2633     -0.21543         
       2020 10 29  59151       0.1770      0.2625     -0.21574         
       2020 10 30  59152       0.1753      0.2617     -0.21604         
       2020 10 31  59153       0.1736      0.2610     -0.21628         
       2020 11  1  59154       0.1719      0.2603     -0.21641         
       2020 11  2  59155       0.1702      0.2596     -0.21642         
       2020 11  3  59156       0.1684      0.2590     -0.21631         
       2020 11  4  59157       0.1667      0.2583     -0.21609         
       2020 11  5  59158       0.1649      0.2577     -0.21580         
       2020 11  6  59159       0.1631      0.2572     -0.21550         
       2020 11  7  59160       0.1613      0.2566     -0.21524         
       2020 11  8  59161       0.1595      0.2561     -0.21508         
       2020 11  9  59162       0.1577      0.2556     -0.21508         
       2020 11 10  59163       0.1559      0.2552     -0.21530         
       2020 11 11  59164       0.1540      0.2547     -0.21576         
       2020 11 12  59165       0.1522      0.2543     -0.21645         
       2020 11 13  59166       0.1503      0.2540     -0.21727         
       2020 11 14  59167       0.1485      0.2536     -0.21809         
       2020 11 15  59168       0.1466      0.2533     -0.21876         
       2020 11 16  59169       0.1447      0.2530     -0.21921         
       2020 11 17  59170       0.1428      0.2528     -0.21941         
       2020 11 18  59171       0.1410      0.2525     -0.21946         
       2020 11 19  59172       0.1391      0.2523     -0.21948         
       2020 11 20  59173       0.1372      0.2522     -0.21952         
       2020 11 21  59174       0.1352      0.2520     -0.21959         
       2020 11 22  59175       0.1333      0.2519     -0.21978         
       2020 11 23  59176       0.1314      0.2518     -0.22016         
       2020 11 24  59177       0.1295      0.2518     -0.22066         
       2020 11 25  59178       0.1276      0.2518     -0.22127         
       2020 11 26  59179       0.1257      0.2518     -0.22198         
       2020 11 27  59180       0.1237      0.2518     -0.22265         
       2020 11 28  59181       0.1218      0.2519     -0.22327         
       2020 11 29  59182       0.1199      0.2520     -0.22380         
       2020 11 30  59183       0.1180      0.2521     -0.22417         
       2020 12  1  59184       0.1160      0.2523     -0.22435         
       2020 12  2  59185       0.1141      0.2525     -0.22443         
       2020 12  3  59186       0.1122      0.2527     -0.22440         
       2020 12  4  59187       0.1103      0.2529     -0.22431         
       2020 12  5  59188       0.1084      0.2532     -0.22432         
       2020 12  6  59189       0.1065      0.2535     -0.22450         
       2020 12  7  59190       0.1046      0.2539     -0.22492         
       2020 12  8  59191       0.1027      0.2542     -0.22556         
       2020 12  9  59192       0.1008      0.2546     -0.22643         
       2020 12 10  59193       0.0989      0.2551     -0.22749         
       2020 12 11  59194       0.0970      0.2555     -0.22860         
       2020 12 12  59195       0.0951      0.2560     -0.22956         
       2020 12 13  59196       0.0933      0.2565     -0.23027         
       2020 12 14  59197       0.0914      0.2571     -0.23069         
       2020 12 15  59198       0.0896      0.2576     -0.23085         
       2020 12 16  59199       0.0877      0.2582     -0.23087         
       2020 12 17  59200       0.0859      0.2589     -0.23090         
       2020 12 18  59201       0.0841      0.2595     -0.23100         
       2020 12 19  59202       0.0823      0.2602     -0.23130         
       2020 12 20  59203       0.0805      0.2609     -0.23171         
       2020 12 21  59204       0.0787      0.2617     -0.23215         
       2020 12 22  59205       0.0770      0.2624     -0.23265         
       2020 12 23  59206       0.0752      0.2632     -0.23324         
       2020 12 24  59207       0.0735      0.2641     -0.23381         
       2020 12 25  59208       0.0717      0.2649     -0.23434         
       2020 12 26  59209       0.0700      0.2658     -0.23482         
       2020 12 27  59210       0.0683      0.2667     -0.23520         
       2020 12 28  59211       0.0667      0.2676     -0.23545         
       2020 12 29  59212       0.0650      0.2686     -0.23556         
       2020 12 30  59213       0.0633      0.2696     -0.23556         
       2020 12 31  59214       0.0617      0.2706     -0.23552         
       2021  1  1  59215       0.0601      0.2716     -0.23551         
       2021  1  2  59216       0.0585      0.2727     -0.23565         
       2021  1  3  59217       0.0569      0.2738     -0.23597         
       2021  1  4  59218       0.0554      0.2749     -0.23653         
       2021  1  5  59219       0.0539      0.2760     -0.23728         
       2021  1  6  59220       0.0523      0.2772     -0.23820         
       2021  1  7  59221       0.0509      0.2784     -0.23917         
       2021  1  8  59222       0.0494      0.2796     -0.24000         
       2021  1  9  59223       0.0479      0.2808     -0.24066         
       2021  1 10  59224       0.0465      0.2821     -0.24111         
       2021  1 11  59225       0.0451      0.2833     -0.24135         
       2021  1 12  59226       0.0437      0.2846     -0.24136         
       2021  1 13  59227       0.0424      0.2859     -0.24136         
       2021  1 14  59228       0.0410      0.2873     -0.24148         
       2021  1 15  59229       0.0397      0.2887     -0.24167         
       2021  1 16  59230       0.0385      0.2900     -0.24198         
       2021  1 17  59231       0.0372      0.2914     -0.24238         
       2021  1 18  59232       0.0360      0.2929     -0.24286         
       2021  1 19  59233       0.0348      0.2943     -0.24333         
       2021  1 20  59234       0.0336      0.2958     -0.24380         
       2021  1 21  59235       0.0324      0.2972     -0.24427         
       2021  1 22  59236       0.0313      0.2987     -0.24469         
       2021  1 23  59237       0.0302      0.3002     -0.24502         
       2021  1 24  59238       0.0291      0.3018     -0.24525         
       2021  1 25  59239       0.0281      0.3033     -0.24533         
       2021  1 26  59240       0.0271      0.3049     -0.24530         
       2021  1 27  59241       0.0261      0.3065     -0.24526         
       2021  1 28  59242       0.0252      0.3081     -0.24531         
       2021  1 29  59243       0.0242      0.3097     -0.24546         
       2021  1 30  59244       0.0233      0.3113     -0.24579         
       2021  1 31  59245       0.0225      0.3129     -0.24640         
       2021  2  1  59246       0.0216      0.3146     -0.24732         
       2021  2  2  59247       0.0208      0.3163     -0.24846         
       2021  2  3  59248       0.0201      0.3179     -0.24967         
       2021  2  4  59249       0.0193      0.3196     -0.25083         
       2021  2  5  59250       0.0186      0.3213     -0.25184         
       2021  2  6  59251       0.0179      0.3230     -0.25263         
       2021  2  7  59252       0.0173      0.3248     -0.25324         
       2021  2  8  59253       0.0167      0.3265     -0.25371         
       2021  2  9  59254       0.0161      0.3282     -0.25416         
       2021  2 10  59255       0.0155      0.3300     -0.25469         
       2021  2 11  59256       0.0150      0.3318     -0.25532         
       2021  2 12  59257       0.0145      0.3335     -0.25613         
       2021  2 13  59258       0.0141      0.3353     -0.25712         
       2021  2 14  59259       0.0137      0.3371     -0.25820         
       2021  2 15  59260       0.0133      0.3389     -0.25934         
       2021  2 16  59261       0.0129      0.3407     -0.26048         
       2021  2 17  59262       0.0126      0.3425     -0.26155         
       2021  2 18  59263       0.0123      0.3443     -0.26251         
       2021  2 19  59264       0.0121      0.3461     -0.26339         
       2021  2 20  59265       0.0119      0.3480     -0.26414         
       2021  2 21  59266       0.0117      0.3498     -0.26473         
       2021  2 22  59267       0.0115      0.3516     -0.26522         
       2021  2 23  59268       0.0114      0.3534     -0.26566         
       2021  2 24  59269       0.0114      0.3553     -0.26610         
       2021  2 25  59270       0.0113      0.3571     -0.26665         
       2021  2 26  59271       0.0113      0.3589     -0.26742         
       2021  2 27  59272       0.0113      0.3608     -0.26849         
       2021  2 28  59273       0.0114      0.3626     -0.26986         
       2021  3  1  59274       0.0115      0.3644     -0.27145         
       2021  3  2  59275       0.0116      0.3663     -0.27310         
       2021  3  3  59276       0.0118      0.3681     -0.27472         
       2021  3  4  59277       0.0120      0.3699     -0.27621         
       2021  3  5  59278       0.0122      0.3718     -0.27742         
       2021  3  6  59279       0.0125      0.3736     -0.27838         
       2021  3  7  59280       0.0128      0.3754     -0.27915         
       2021  3  8  59281       0.0131      0.3772     -0.27979         
       2021  3  9  59282       0.0135      0.3790     -0.28046         
       2021  3 10  59283       0.0139      0.3808     -0.28123         
       2021  3 11  59284       0.0143      0.3826     -0.28214         
       2021  3 12  59285       0.0148      0.3844     -0.28324         
       2021  3 13  59286       0.0153      0.3862     -0.28449         
       2021  3 14  59287       0.0159      0.3880     -0.28580         
       2021  3 15  59288       0.0164      0.3897     -0.28711         
       2021  3 16  59289       0.0170      0.3915     -0.28839         
       2021  3 17  59290       0.0177      0.3933     -0.28963         
       2021  3 18  59291       0.0184      0.3950     -0.29074         
       2021  3 19  59292       0.0191      0.3967     -0.29177         
       2021  3 20  59293       0.0198      0.3985     -0.29268         
       2021  3 21  59294       0.0206      0.4002     -0.29343         
       2021  3 22  59295       0.0214      0.4019     -0.29408         
       2021  3 23  59296       0.0222      0.4036     -0.29466         
       2021  3 24  59297       0.0231      0.4052     -0.29528         
       2021  3 25  59298       0.0240      0.4069     -0.29608         
       2021  3 26  59299       0.0249      0.4085     -0.29711         
       2021  3 27  59300       0.0259      0.4102     -0.29846         
       2021  3 28  59301       0.0269      0.4118     -0.30006         
       2021  3 29  59302       0.0279      0.4134     -0.30180         
       2021  3 30  59303       0.0290      0.4150     -0.30354         
       2021  3 31  59304       0.0301      0.4166     -0.30514         
       2021  4  1  59305       0.0312      0.4181     -0.30645         
       2021  4  2  59306       0.0324      0.4197     -0.30751         
       2021  4  3  59307       0.0335      0.4212     -0.30839         
       2021  4  4  59308       0.0347      0.4227     -0.30915         
       2021  4  5  59309       0.0360      0.4242     -0.30982         
       2021  4  6  59310       0.0372      0.4256     -0.31050         
       2021  4  7  59311       0.0385      0.4271     -0.31126         
       2021  4  8  59312       0.0399      0.4285     -0.31219         
       2021  4  9  59313       0.0412      0.4299     -0.31325         
      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)                         
                      58926  -107.03    0.31   -9.17    0.19   
                      58927  -107.02    0.31   -9.20    0.19   
                      58928  -106.73    0.31   -9.23    0.19   
                      58929  -106.31    0.20   -9.23    0.16   
                      58930  -106.03    0.19   -9.11    0.12   
                      58931  -105.99    0.19   -8.86    0.12   
                      58932  -106.08    0.18   -8.64    0.05   
                      58933  -106.14    0.18   -8.60    0.05   
                      58934  -106.06    0.18   -8.75    0.05   
                      58935  -105.85    0.18   -8.96    0.05   
                      58936  -105.65    0.32   -9.14    0.16   
                      58937  -105.59    0.79   -9.32    0.08   
                      58938  -105.70    0.79   -9.55    0.08   
                      58939  -105.77    0.79   -9.75    0.08   
                                                            
                     IAU2000A Celestial Pole Offset Series  
                      MJD      dX     error     dY     error
                                    (msec. of arc)          
                      58926    0.188  0.122   -0.006   0.194          
                      58927    0.172  0.122   -0.045   0.194          
                      58928    0.163  0.122   -0.081   0.194          
                      58929    0.166  0.078   -0.101   0.160          
                      58930    0.182  0.074   -0.104   0.115          
                      58931    0.204  0.074   -0.096   0.115          
                      58932    0.228  0.072   -0.084   0.051          
                      58933    0.250  0.072   -0.075   0.051          
                      58934    0.268  0.072   -0.069   0.051          
                      58935    0.282  0.072   -0.066   0.051          
                      58936    0.295  0.128   -0.065   0.160          
                      58937    0.306  0.314   -0.066   0.083          
                      58938    0.315  0.314   -0.069   0.083          
                      58939    0.323  0.314   -0.072   0.083          
                                                                               
    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).          
