Computer Ephemeris for 2020 from DE200/LE200.

Orbital parameters of the Sun.

   Date       Mean    Perigee       Mean   Paral Aberrat    Epsilon  Nutat
         longitude  longitude    anomaly    "       "           "       "
Dec  23   271.2564   283.2818   347.9746   8.940  20.830  232610.21   -1.89
Jan   2   281.1129   283.2823   357.8306   8.944  20.839      10.32   -1.76
     12   290.9693   283.2828     7.6866   8.943  20.836      10.51   -1.57
     22   300.8258   283.2832    17.5426   8.936  20.821      10.74   -1.31
Feb   1   310.6823   283.2837    27.3986   8.926  20.798      11.01   -1.03
     11   320.5388   283.2842    37.2546   8.912  20.765      11.29   -0.74
     21   330.3952   283.2846    47.1106   8.894  20.722      11.55   -0.47
Mar   2   340.2517   283.2851    56.9666   8.873  20.674      11.76   -0.24
     12   350.1082   283.2856    66.8226   8.851  20.621      11.92   -0.07
     22   359.9647   283.2860    76.6786   8.825  20.563      12.01    0.03
Apr   1     9.8211   283.2865    86.5346   8.800  20.505      12.03    0.07
     11    19.6776   283.2870    96.3906   8.775  20.447      12.00    0.04
     21    29.5341   283.2875   106.2466   8.751  20.389      11.91   -0.03
May   1    39.3905   283.2879   116.1026   8.728  20.336      11.80   -0.13
     11    49.2470   283.2884   125.9586   8.707  20.287      11.68   -0.24
     21    59.1035   283.2889   135.8146   8.688  20.244      11.57   -0.33
     31    68.9600   283.2893   145.6706   8.674  20.209      11.50   -0.39
Jun  10    78.8164   283.2898   155.5266   8.662  20.182      11.48   -0.40
     20    88.6729   283.2903   165.3826   8.654  20.163      11.52   -0.35
     30    98.5294   283.2908   175.2386   8.650  20.154      11.62   -0.24
Jul  10   108.3859   283.2912   185.0946   8.650  20.155      11.78   -0.06
     20   118.2423   283.2917   194.9506   8.654  20.163      11.98    0.16
     30   128.0988   283.2922   204.8066   8.662  20.183      12.23    0.41
Aug   9   137.9553   283.2926   214.6626   8.674  20.211      12.49    0.69
     19   147.8118   283.2931   224.5186   8.689  20.245      12.74    0.95
     29   157.6682   283.2936   234.3747   8.708  20.289      12.97    1.20
Sep   8   167.5247   283.2940   244.2307   8.729  20.338      13.16    1.40
     18   177.3812   283.2945   254.0867   8.752  20.391      13.29    1.54
     28   187.2377   283.2950   263.9427   8.776  20.449      13.36    1.62
Oct   8   197.0941   283.2955   273.7987   8.802  20.507      13.36    1.64
     18   206.9506   283.2959   283.6547   8.826  20.565      13.31    1.59
     28   216.8071   283.2964   293.5107   8.851  20.623      13.20    1.50
Nov   7   226.6635   283.2969   303.3667   8.874  20.676      13.08    1.39
     17   236.5200   283.2973   313.2227   8.894  20.724      12.95    1.28
     27   246.3765   283.2978   323.0787   8.913  20.766      12.85    1.19
Dec   7   256.2330   283.2983   332.9347   8.927  20.799      12.79    1.14
     17   266.0894   283.2988   342.7907   8.936  20.821      12.80    1.16
     27   275.9459   283.2992   352.6467   8.943  20.836      12.87    1.25
Jan   6   285.8024   283.2997     2.5027   8.944  20.838      13.02    1.41

     Daily movements (degrees) of 
          Mean longitude = 0.985647
          Mean anomaly   = 0.985600

     Duration of years (days):
          Tropical    = 365.24218993 - 0.00000614 * T
          Sidereal    = 365.25636331 + 0.00000012 * T
          Anomalistic = 365.25963535 + 0.00000325 * T