                                                                               
      **********************************************************************   
      *                                                                    *   
      *                   I E R S   B U L L E T I N - A                    *   
      *                                                                    *   
      *           Rapid Service/Prediction of Earth Orientation            *   
      **********************************************************************   
      23 April 2020                                      Vol. XXXIII No. 017   
      ______________________________________________________________________   
      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 17  58956 0.06380 .00006 0.42137 .00002 -0.238211 0.000004          
   20  4 18  58957 0.06435 .00009 0.42293 .00009 -0.238561 0.000004          
   20  4 19  58958 0.06427 .00009 0.42417 .00009 -0.239012 0.000016          
   20  4 20  58959 0.06377 .00009 0.42510 .00009 -0.239496 0.000012          
   20  4 21  58960 0.06333 .00009 0.42585 .00009 -0.239994 0.000013          
   20  4 22  58961 0.06348 .00009 0.42653 .00009 -0.240476 0.000012          
   20  4 23  58962 0.06421 .00009 0.42735 .00009 -0.240929 0.000012          
                                                                               
      _______________________________________________________________________  
                                                                               
      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 =  0.1214 - 0.0748 cos A + 0.0736 sin A + 0.0197 cos C + 0.0060 sin C  
      y =  0.3524 + 0.0681 cos A + 0.0686 sin A + 0.0060 cos C - 0.0197 sin C  
         UT1-UTC = -0.2081 - 0.00016 (MJD - 58970) - (UT2-UT1)                 
                                                                               
      where A = 2*pi*(MJD-58962)/365.25 and C = 2*pi*(MJD-58962)/435.          
                                                                               
         TAI-UTC(MJD 58963) = 37.0                                             
      The accuracy may be estimated from the expressions:                      
      S x,y = 0.00068 (MJD-58962)**0.80   S t = 0.00025 (MJD-58962)**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 24  58963       0.0653      0.4283     -0.24136         
       2020  4 25  58964       0.0664      0.4293     -0.24169         
       2020  4 26  58965       0.0677      0.4304     -0.24189         
       2020  4 27  58966       0.0690      0.4314     -0.24199         
       2020  4 28  58967       0.0701      0.4325     -0.24203         
       2020  4 29  58968       0.0713      0.4334     -0.24207         
       2020  4 30  58969       0.0726      0.4342     -0.24216         
       2020  5  1  58970       0.0740      0.4349     -0.24238         
       2020  5  2  58971       0.0756      0.4355     -0.24280         
       2020  5  3  58972       0.0771      0.4362     -0.24342         
       2020  5  4  58973       0.0787      0.4369     -0.24424         
       2020  5  5  58974       0.0804      0.4376     -0.24518         
       2020  5  6  58975       0.0820      0.4384     -0.24611         
       2020  5  7  58976       0.0836      0.4391     -0.24690         
       2020  5  8  58977       0.0853      0.4398     -0.24748         
       2020  5  9  58978       0.0871      0.4404     -0.24778         
       2020  5 10  58979       0.0889      0.4409     -0.24785         
       2020  5 11  58980       0.0908      0.4415     -0.24779         
       2020  5 12  58981       0.0926      0.4420     -0.24769         
       2020  5 13  58982       0.0945      0.4426     -0.24761         
       2020  5 14  58983       0.0963      0.4432     -0.24760         
       2020  5 15  58984       0.0982      0.4437     -0.24767         
       2020  5 16  58985       0.1000      0.4442     -0.24783         
       2020  5 17  58986       0.1018      0.4447     -0.24805         
       2020  5 18  58987       0.1036      0.4451     -0.24831         
       2020  5 19  58988       0.1055      0.4455     -0.24855         
       2020  5 20  58989       0.1073      0.4459     -0.24874         
       2020  5 21  58990       0.1092      0.4462     -0.24884         
       2020  5 22  58991       0.1111      0.4466     -0.24881         
       2020  5 23  58992       0.1129      0.4469     -0.24864         
       2020  5 24  58993       0.1148      0.4472     -0.24834         
       2020  5 25  58994       0.1166      0.4475     -0.24794         
       2020  5 26  58995       0.1185      0.4477     -0.24747         
       2020  5 27  58996       0.1203      0.4479     -0.24703         
       2020  5 28  58997       0.1222      0.4480     -0.24668         
       2020  5 29  58998       0.1240      0.4482     -0.24651         
       2020  5 30  58999       0.1259      0.4483     -0.24656         
       2020  5 31  59000       0.1277      0.4484     -0.24683         
       2020  6  1  59001       0.1296      0.4484     -0.24728         
       2020  6  2  59002       0.1314      0.4484     -0.24780         
       2020  6  3  59003       0.1333      0.4484     -0.24827         
       2020  6  4  59004       0.1351      0.4484     -0.24859         
       2020  6  5  59005       0.1370      0.4483     -0.24866         
       2020  6  6  59006       0.1388      0.4482     -0.24847         
       2020  6  7  59007       0.1407      0.4480     -0.24806         
       2020  6  8  59008       0.1426      0.4479     -0.24753         
       2020  6  9  59009       0.1444      0.4477     -0.24694         
       2020  6 10  59010       0.1462      0.4474     -0.24639         
       2020  6 11  59011       0.1481      0.4472     -0.24591         
       2020  6 12  59012       0.1499      0.4469     -0.24553         
       2020  6 13  59013       0.1518      0.4465     -0.24523         
       2020  6 14  59014       0.1536      0.4462     -0.24500         
       2020  6 15  59015       0.1554      0.4458     -0.24481         
       2020  6 16  59016       0.1572      0.4454     -0.24460         
       2020  6 17  59017       0.1591      0.4449     -0.24435         
       2020  6 18  59018       0.1609      0.4444     -0.24402         
       2020  6 19  59019       0.1627      0.4439     -0.24357         
       2020  6 20  59020       0.1645      0.4434     -0.24300         
       2020  6 21  59021       0.1662      0.4428     -0.24232         
       2020  6 22  59022       0.1680      0.4422     -0.24156         
       2020  6 23  59023       0.1698      0.4416     -0.24080         
       2020  6 24  59024       0.1715      0.4410     -0.24012         
       2020  6 25  59025       0.1733      0.4403     -0.23957         
       2020  6 26  59026       0.1750      0.4396     -0.23922         
       2020  6 27  59027       0.1767      0.4389     -0.23906         
       2020  6 28  59028       0.1784      0.4381     -0.23906         
       2020  6 29  59029       0.1801      0.4373     -0.23914         
       2020  6 30  59030       0.1818      0.4365     -0.23920         
       2020  7  1  59031       0.1835      0.4357     -0.23914         
       2020  7  2  59032       0.1851      0.4348     -0.23888         
       2020  7  3  59033       0.1867      0.4339     -0.23839         
       2020  7  4  59034       0.1884      0.4330     -0.23769         
       2020  7  5  59035       0.1900      0.4320     -0.23686         
       2020  7  6  59036       0.1915      0.4311     -0.23598         
       2020  7  7  59037       0.1931      0.4301     -0.23511         
       2020  7  8  59038       0.1946      0.4291     -0.23433         
       2020  7  9  59039       0.1962      0.4280     -0.23364         
       2020  7 10  59040       0.1977      0.4270     -0.23305         
       2020  7 11  59041       0.1992      0.4259     -0.23254         
       2020  7 12  59042       0.2006      0.4247     -0.23207         
       2020  7 13  59043       0.2021      0.4236     -0.23161         
       2020  7 14  59044       0.2035      0.4224     -0.23110         
       2020  7 15  59045       0.2049      0.4213     -0.23052         
       2020  7 16  59046       0.2063      0.4200     -0.22983         
       2020  7 17  59047       0.2076      0.4188     -0.22901         
       2020  7 18  59048       0.2090      0.4176     -0.22807         
       2020  7 19  59049       0.2103      0.4163     -0.22705         
       2020  7 20  59050       0.2115      0.4150     -0.22600         
       2020  7 21  59051       0.2128      0.4137     -0.22500         
       2020  7 22  59052       0.2140      0.4123     -0.22416         
       2020  7 23  59053       0.2153      0.4110     -0.22353         
       2020  7 24  59054       0.2164      0.4096     -0.22314         
       2020  7 25  59055       0.2176      0.4082     -0.22293         
       2020  7 26  59056       0.2187      0.4068     -0.22283         
       2020  7 27  59057       0.2198      0.4054     -0.22273         
       2020  7 28  59058       0.2209      0.4039     -0.22252         
       2020  7 29  59059       0.2220      0.4025     -0.22212         
       2020  7 30  59060       0.2230      0.4010     -0.22150         
       2020  7 31  59061       0.2240      0.3995     -0.22069         
       2020  8  1  59062       0.2250      0.3980     -0.21973         
       2020  8  2  59063       0.2259      0.3964     -0.21872         
       2020  8  3  59064       0.2268      0.3949     -0.21773         
       2020  8  4  59065       0.2277      0.3933     -0.21682         
       2020  8  5  59066       0.2285      0.3917     -0.21603         
       2020  8  6  59067       0.2294      0.3902     -0.21537         
       2020  8  7  59068       0.2302      0.3885     -0.21482         
       2020  8  8  59069       0.2309      0.3869     -0.21434         
       2020  8  9  59070       0.2316      0.3853     -0.21390         
       2020  8 10  59071       0.2323      0.3837     -0.21347         
       2020  8 11  59072       0.2330      0.3820     -0.21297         
       2020  8 12  59073       0.2336      0.3803     -0.21239         
       2020  8 13  59074       0.2343      0.3787     -0.21170         
       2020  8 14  59075       0.2348      0.3770     -0.21091         
       2020  8 15  59076       0.2354      0.3753     -0.21004         
       2020  8 16  59077       0.2359      0.3736     -0.20914         
       2020  8 17  59078       0.2364      0.3719     -0.20829         
       2020  8 18  59079       0.2368      0.3702     -0.20757         
       2020  8 19  59080       0.2372      0.3684     -0.20709         
       2020  8 20  59081       0.2376      0.3667     -0.20688         
       2020  8 21  59082       0.2379      0.3650     -0.20691         
       2020  8 22  59083       0.2382      0.3632     -0.20711         
       2020  8 23  59084       0.2385      0.3615     -0.20735         
       2020  8 24  59085       0.2388      0.3597     -0.20750         
       2020  8 25  59086       0.2390      0.3580     -0.20746         
       2020  8 26  59087       0.2392      0.3562     -0.20719         
       2020  8 27  59088       0.2393      0.3544     -0.20672         
       2020  8 28  59089       0.2394      0.3527     -0.20610         
       2020  8 29  59090       0.2395      0.3509     -0.20542         
       2020  8 30  59091       0.2395      0.3491     -0.20475         
       2020  8 31  59092       0.2395      0.3474     -0.20417         
       2020  9  1  59093       0.2395      0.3456     -0.20371         
       2020  9  2  59094       0.2394      0.3438     -0.20339         
       2020  9  3  59095       0.2394      0.3421     -0.20320         
       2020  9  4  59096       0.2392      0.3403     -0.20311         
       2020  9  5  59097       0.2391      0.3385     -0.20307         
       2020  9  6  59098       0.2389      0.3368     -0.20304         
       2020  9  7  59099       0.2386      0.3350     -0.20296         
       2020  9  8  59100       0.2384      0.3332     -0.20280         
       2020  9  9  59101       0.2381      0.3315     -0.20255         
       2020  9 10  59102       0.2377      0.3297     -0.20219         
       2020  9 11  59103       0.2374      0.3280     -0.20175         
       2020  9 12  59104       0.2370      0.3263     -0.20127         
       2020  9 13  59105       0.2365      0.3245     -0.20081         
       2020  9 14  59106       0.2361      0.3228     -0.20046         
       2020  9 15  59107       0.2356      0.3211     -0.20033         
       2020  9 16  59108       0.2350      0.3194     -0.20046         
       2020  9 17  59109       0.2345      0.3177     -0.20090         
       2020  9 18  59110       0.2339      0.3160     -0.20158         
       2020  9 19  59111       0.2332      0.3143     -0.20237         
       2020  9 20  59112       0.2326      0.3126     -0.20313         
       2020  9 21  59113       0.2319      0.3109     -0.20372         
       2020  9 22  59114       0.2312      0.3093     -0.20406         
       2020  9 23  59115       0.2304      0.3077     -0.20416         
       2020  9 24  59116       0.2296      0.3060     -0.20407         
       2020  9 25  59117       0.2288      0.3044     -0.20389         
       2020  9 26  59118       0.2279      0.3028     -0.20369         
       2020  9 27  59119       0.2270      0.3012     -0.20356         
       2020  9 28  59120       0.2261      0.2996     -0.20355         
       2020  9 29  59121       0.2252      0.2981     -0.20368         
       2020  9 30  59122       0.2242      0.2965     -0.20394         
       2020 10  1  59123       0.2232      0.2950     -0.20431         
       2020 10  2  59124       0.2221      0.2935     -0.20474         
       2020 10  3  59125       0.2211      0.2920     -0.20519         
       2020 10  4  59126       0.2200      0.2905     -0.20560         
       2020 10  5  59127       0.2188      0.2890     -0.20593         
       2020 10  6  59128       0.2177      0.2876     -0.20615         
       2020 10  7  59129       0.2165      0.2861     -0.20626         
       2020 10  8  59130       0.2153      0.2847     -0.20626         
       2020 10  9  59131       0.2140      0.2833     -0.20619         
       2020 10 10  59132       0.2128      0.2820     -0.20612         
       2020 10 11  59133       0.2115      0.2806     -0.20611         
       2020 10 12  59134       0.2102      0.2793     -0.20626         
       2020 10 13  59135       0.2088      0.2780     -0.20664         
       2020 10 14  59136       0.2074      0.2767     -0.20732         
       2020 10 15  59137       0.2060      0.2754     -0.20829         
       2020 10 16  59138       0.2046      0.2742     -0.20945         
       2020 10 17  59139       0.2032      0.2729     -0.21066         
       2020 10 18  59140       0.2017      0.2717     -0.21176         
       2020 10 19  59141       0.2002      0.2706     -0.21264         
       2020 10 20  59142       0.1987      0.2694     -0.21325         
       2020 10 21  59143       0.1971      0.2683     -0.21362         
       2020 10 22  59144       0.1956      0.2672     -0.21384         
       2020 10 23  59145       0.1940      0.2661     -0.21401         
       2020 10 24  59146       0.1924      0.2650     -0.21422         
       2020 10 25  59147       0.1907      0.2640     -0.21454         
       2020 10 26  59148       0.1891      0.2630     -0.21497         
       2020 10 27  59149       0.1874      0.2620     -0.21553         
       2020 10 28  59150       0.1857      0.2611     -0.21619         
       2020 10 29  59151       0.1840      0.2601     -0.21691         
       2020 10 30  59152       0.1823      0.2592     -0.21763         
       2020 10 31  59153       0.1805      0.2584     -0.21830         
       2020 11  1  59154       0.1788      0.2575     -0.21888         
       2020 11  2  59155       0.1770      0.2567     -0.21932         
       2020 11  3  59156       0.1752      0.2559     -0.21961         
       2020 11  4  59157       0.1734      0.2552     -0.21977         
       2020 11  5  59158       0.1715      0.2544     -0.21981         
       2020 11  6  59159       0.1697      0.2537     -0.21980         
       2020 11  7  59160       0.1678      0.2530     -0.21979         
       2020 11  8  59161       0.1660      0.2524     -0.21986         
       2020 11  9  59162       0.1641      0.2518     -0.22008         
       2020 11 10  59163       0.1622      0.2512     -0.22052         
       2020 11 11  59164       0.1603      0.2507     -0.22121         
       2020 11 12  59165       0.1583      0.2501     -0.22209         
       2020 11 13  59166       0.1564      0.2496     -0.22309         
       2020 11 14  59167       0.1545      0.2492     -0.22405         
       2020 11 15  59168       0.1525      0.2487     -0.22484         
       2020 11 16  59169       0.1505      0.2483     -0.22536         
       2020 11 17  59170       0.1486      0.2480     -0.22558         
       2020 11 18  59171       0.1466      0.2476     -0.22557         
       2020 11 19  59172       0.1446      0.2473     -0.22539         
       2020 11 20  59173       0.1426      0.2471     -0.22515         
       2020 11 21  59174       0.1406      0.2468     -0.22494         
       2020 11 22  59175       0.1386      0.2466     -0.22479         
       2020 11 23  59176       0.1366      0.2464     -0.22474         
       2020 11 24  59177       0.1346      0.2463     -0.22476         
       2020 11 25  59178       0.1325      0.2462     -0.22484         
       2020 11 26  59179       0.1305      0.2461     -0.22494         
       2020 11 27  59180       0.1285      0.2460     -0.22500         
       2020 11 28  59181       0.1264      0.2460     -0.22497         
       2020 11 29  59182       0.1244      0.2460     -0.22483         
       2020 11 30  59183       0.1224      0.2461     -0.22460         
       2020 12  1  59184       0.1203      0.2461     -0.22430         
       2020 12  2  59185       0.1183      0.2462     -0.22394         
       2020 12  3  59186       0.1163      0.2464     -0.22354         
       2020 12  4  59187       0.1143      0.2466     -0.22317         
       2020 12  5  59188       0.1122      0.2468     -0.22286         
       2020 12  6  59189       0.1102      0.2470     -0.22262         
       2020 12  7  59190       0.1082      0.2473     -0.22251         
       2020 12  8  59191       0.1062      0.2476     -0.22264         
       2020 12  9  59192       0.1041      0.2479     -0.22299         
       2020 12 10  59193       0.1021      0.2483     -0.22348         
       2020 12 11  59194       0.1001      0.2487     -0.22401         
       2020 12 12  59195       0.0981      0.2491     -0.22447         
       2020 12 13  59196       0.0961      0.2496     -0.22476         
       2020 12 14  59197       0.0942      0.2501     -0.22483         
       2020 12 15  59198       0.0922      0.2506     -0.22470         
       2020 12 16  59199       0.0902      0.2511     -0.22447         
       2020 12 17  59200       0.0883      0.2517     -0.22430         
       2020 12 18  59201       0.0863      0.2523     -0.22419         
       2020 12 19  59202       0.0844      0.2530     -0.22415         
       2020 12 20  59203       0.0824      0.2537     -0.22424         
       2020 12 21  59204       0.0805      0.2544     -0.22453         
       2020 12 22  59205       0.0786      0.2551     -0.22490         
       2020 12 23  59206       0.0767      0.2559     -0.22535         
       2020 12 24  59207       0.0749      0.2567     -0.22586         
       2020 12 25  59208       0.0730      0.2575     -0.22629         
       2020 12 26  59209       0.0712      0.2584     -0.22664         
       2020 12 27  59210       0.0693      0.2593     -0.22690         
       2020 12 28  59211       0.0675      0.2602     -0.22699         
       2020 12 29  59212       0.0657      0.2611     -0.22692         
       2020 12 30  59213       0.0639      0.2621     -0.22678         
       2020 12 31  59214       0.0622      0.2631     -0.22658         
       2021  1  1  59215       0.0604      0.2641     -0.22639         
       2021  1  2  59216       0.0587      0.2652     -0.22637         
       2021  1  3  59217       0.0570      0.2663     -0.22656         
       2021  1  4  59218       0.0553      0.2674     -0.22700         
       2021  1  5  59219       0.0536      0.2685     -0.22765         
       2021  1  6  59220       0.0520      0.2697     -0.22846         
       2021  1  7  59221       0.0503      0.2709     -0.22936         
       2021  1  8  59222       0.0487      0.2721     -0.23022         
       2021  1  9  59223       0.0471      0.2734     -0.23086         
       2021  1 10  59224       0.0456      0.2746     -0.23125         
       2021  1 11  59225       0.0440      0.2759     -0.23139         
       2021  1 12  59226       0.0425      0.2773     -0.23134         
       2021  1 13  59227       0.0410      0.2786     -0.23123         
       2021  1 14  59228       0.0396      0.2800     -0.23121         
       2021  1 15  59229       0.0381      0.2814     -0.23131         
       2021  1 16  59230       0.0367      0.2828     -0.23166         
       2021  1 17  59231       0.0353      0.2842     -0.23212         
       2021  1 18  59232       0.0339      0.2857     -0.23261         
       2021  1 19  59233       0.0326      0.2872     -0.23314         
       2021  1 20  59234       0.0313      0.2887     -0.23372         
       2021  1 21  59235       0.0300      0.2902     -0.23426         
       2021  1 22  59236       0.0287      0.2917     -0.23473         
       2021  1 23  59237       0.0275      0.2933     -0.23514         
       2021  1 24  59238       0.0263      0.2949     -0.23545         
       2021  1 25  59239       0.0251      0.2965     -0.23564         
       2021  1 26  59240       0.0240      0.2981     -0.23574         
       2021  1 27  59241       0.0229      0.2997     -0.23578         
       2021  1 28  59242       0.0218      0.3014     -0.23584         
       2021  1 29  59243       0.0208      0.3031     -0.23601         
       2021  1 30  59244       0.0197      0.3048     -0.23640         
       2021  1 31  59245       0.0187      0.3065     -0.23702         
       2021  2  1  59246       0.0178      0.3082     -0.23788         
       2021  2  2  59247       0.0169      0.3099     -0.23889         
       2021  2  3  59248       0.0160      0.3117     -0.23999         
       2021  2  4  59249       0.0151      0.3135     -0.24103         
       2021  2  5  59250       0.0143      0.3152     -0.24185         
       2021  2  6  59251       0.0135      0.3170     -0.24245         
       2021  2  7  59252       0.0127      0.3189     -0.24285         
       2021  2  8  59253       0.0120      0.3207     -0.24309         
       2021  2  9  59254       0.0113      0.3225     -0.24318         
       2021  2 10  59255       0.0106      0.3244     -0.24334         
       2021  2 11  59256       0.0100      0.3262     -0.24369         
       2021  2 12  59257       0.0094      0.3281     -0.24415         
       2021  2 13  59258       0.0089      0.3299     -0.24474         
       2021  2 14  59259       0.0083      0.3318     -0.24543         
       2021  2 15  59260       0.0078      0.3337     -0.24617         
       2021  2 16  59261       0.0074      0.3356     -0.24688         
       2021  2 17  59262       0.0070      0.3375     -0.24756         
       2021  2 18  59263       0.0066      0.3394     -0.24820         
       2021  2 19  59264       0.0062      0.3414     -0.24877         
       2021  2 20  59265       0.0059      0.3433     -0.24924         
       2021  2 21  59266       0.0057      0.3452     -0.24962         
       2021  2 22  59267       0.0054      0.3472     -0.24987         
       2021  2 23  59268       0.0052      0.3491     -0.25006         
       2021  2 24  59269       0.0050      0.3510     -0.25028         
       2021  2 25  59270       0.0049      0.3530     -0.25066         
       2021  2 26  59271       0.0048      0.3549     -0.25120         
       2021  2 27  59272       0.0048      0.3569     -0.25198         
       2021  2 28  59273       0.0047      0.3588     -0.25306         
       2021  3  1  59274       0.0048      0.3608     -0.25444         
       2021  3  2  59275       0.0048      0.3628     -0.25598         
       2021  3  3  59276       0.0049      0.3647     -0.25749         
       2021  3  4  59277       0.0050      0.3667     -0.25886         
       2021  3  5  59278       0.0052      0.3686     -0.26001         
       2021  3  6  59279       0.0054      0.3706     -0.26090         
       2021  3  7  59280       0.0056      0.3725     -0.26163         
       2021  3  8  59281       0.0059      0.3744     -0.26228         
       2021  3  9  59282       0.0062      0.3764     -0.26298         
       2021  3 10  59283       0.0065      0.3783     -0.26382         
       2021  3 11  59284       0.0069      0.3802     -0.26478         
       2021  3 12  59285       0.0073      0.3822     -0.26595         
       2021  3 13  59286       0.0078      0.3841     -0.26726         
       2021  3 14  59287       0.0083      0.3860     -0.26865         
       2021  3 15  59288       0.0088      0.3879     -0.27006         
       2021  3 16  59289       0.0093      0.3898     -0.27144         
       2021  3 17  59290       0.0099      0.3917     -0.27269         
       2021  3 18  59291       0.0106      0.3935     -0.27381         
       2021  3 19  59292       0.0112      0.3954     -0.27482         
       2021  3 20  59293       0.0119      0.3973     -0.27569         
       2021  3 21  59294       0.0127      0.3991     -0.27642         
       2021  3 22  59295       0.0134      0.4009     -0.27706         
       2021  3 23  59296       0.0142      0.4028     -0.27768         
       2021  3 24  59297       0.0151      0.4046     -0.27836         
       2021  3 25  59298       0.0160      0.4064     -0.27918         
       2021  3 26  59299       0.0169      0.4082     -0.28026         
       2021  3 27  59300       0.0178      0.4099     -0.28166         
       2021  3 28  59301       0.0188      0.4117     -0.28337         
       2021  3 29  59302       0.0198      0.4134     -0.28525         
       2021  3 30  59303       0.0208      0.4151     -0.28712         
       2021  3 31  59304       0.0219      0.4169     -0.28886         
       2021  4  1  59305       0.0230      0.4185     -0.29039         
       2021  4  2  59306       0.0242      0.4202     -0.29160         
       2021  4  3  59307       0.0253      0.4219     -0.29255         
       2021  4  4  59308       0.0265      0.4235     -0.29334         
       2021  4  5  59309       0.0278      0.4251     -0.29405         
       2021  4  6  59310       0.0290      0.4267     -0.29484         
       2021  4  7  59311       0.0303      0.4283     -0.29577         
       2021  4  8  59312       0.0316      0.4299     -0.29684         
       2021  4  9  59313       0.0330      0.4314     -0.29808         
       2021  4 10  59314       0.0344      0.4329     -0.29941         
       2021  4 11  59315       0.0358      0.4344     -0.30077         
       2021  4 12  59316       0.0372      0.4359     -0.30206         
       2021  4 13  59317       0.0387      0.4374     -0.30329         
       2021  4 14  59318       0.0402      0.4388     -0.30442         
       2021  4 15  59319       0.0417      0.4402     -0.30539         
       2021  4 16  59320       0.0433      0.4416     -0.30627         
       2021  4 17  59321       0.0448      0.4430     -0.30702         
       2021  4 18  59322       0.0465      0.4443     -0.30763         
       2021  4 19  59323       0.0481      0.4456     -0.30815         
       2021  4 20  59324       0.0497      0.4469     -0.30863         
       2021  4 21  59325       0.0514      0.4482     -0.30921         
       2021  4 22  59326       0.0531      0.4494     -0.30997         
       2021  4 23  59327       0.0548      0.4506     -0.31099         
      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)                         
                      58940  -105.86    0.29   -9.80    0.08   
                      58941  -105.65    0.29   -9.76    0.08   
                      58942  -105.61    0.29   -9.82    0.08   
                      58943  -105.64    0.41  -10.11    0.15   
                      58944  -105.40    0.39  -10.39    0.14   
                      58945  -104.91    0.39  -10.37    0.14   
                      58946  -104.65    0.39  -10.08    0.13   
                      58947  -104.96    0.39   -9.86    0.13   
                      58948  -105.60    0.39   -9.86    0.13   
                      58949  -106.07    0.39   -9.94    0.13   
                      58950  -106.11    0.32   -9.97    0.16   
                      58951  -105.82    0.32  -10.02    0.16   
                      58952  -105.51    0.32  -10.22    0.09   
                      58953  -105.45    0.32  -10.44    0.09   
                      58954  -105.66    0.32  -10.52    0.09   
                                                            
                     IAU2000A Celestial Pole Offset Series  
                      MJD      dX     error     dY     error
                                    (msec. of arc)          
                      58940    0.242  0.117   -0.076   0.083          
                      58941    0.246  0.117   -0.090   0.083          
                      58942    0.241  0.117   -0.101   0.083          
                      58943    0.231  0.162   -0.109   0.149          
                      58944    0.221  0.156   -0.113   0.136          
                      58945    0.210  0.156   -0.114   0.136          
                      58946    0.200  0.155   -0.113   0.133          
                      58947    0.190  0.155   -0.110   0.133          
                      58948    0.180  0.155   -0.106   0.133          
                      58949    0.171  0.155   -0.100   0.133          
                      58950    0.162  0.128   -0.093   0.160          
                      58951    0.153  0.128   -0.086   0.160          
                      58952    0.144  0.126   -0.078   0.094          
                      58953    0.136  0.126   -0.069   0.094          
                      58954    0.128  0.126   -0.060   0.094          
                                                                               
    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).          
