Computer Ephemeris for 2020 from DE200/LE200.

Longitude of central meridian of Jupiter.

                                System 1
 Date    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
    1  237.9   86.5  341.2  193.5  250.4  107.6  168.6   27.3  243.4  298.0  147.4  197.3
    2   35.6  244.2  139.0  351.4   48.3  265.6  326.6  185.3   41.2   95.8  305.1  355.0
    3  193.2   41.9  296.8  149.2  206.2   63.6  124.7  343.3  199.1  253.5  102.8  152.6
    4  350.9  199.7   94.6  307.1    4.2  221.7  282.7  141.3  357.0   51.3  260.5  310.3
    5  148.6  357.4  252.4  105.0  162.1   19.7   80.8  299.3  154.9  209.0   58.1  107.9
    6  306.3  155.1   50.1  262.8  320.1  177.7  238.8   97.2  312.7    6.8  215.8  265.6
    7  104.0  312.9  207.9   60.7  118.0  335.7   36.8  255.2  110.6  164.5   13.5   63.2
    8  261.6  110.6    5.7  218.6  276.0  133.7  194.9   53.2  268.4  322.3  171.2  220.8
    9   59.3  268.3  163.5   16.4   73.9  291.8  352.9  211.1   66.3  120.0  328.8   18.5
   10  217.0   66.1  321.3  174.3  231.9   89.8  150.9    9.1  224.1  277.8  126.5  176.1
   11   14.7  223.8  119.1  332.2   29.9  247.8  309.0  167.1   22.0   75.5  284.2  333.8
   12  172.4   21.5  276.9  130.1  187.8   45.9  107.0  325.0  179.8  233.2   81.8  131.4
   13  330.1  179.3   74.7  288.0  345.8  203.9  265.0  123.0  337.6   31.0  239.5  289.1
   14  127.8  337.0  232.5   85.8  143.8    1.9   63.1  280.9  135.5  188.7   37.2   86.7
   15  285.5  134.8   30.4  243.7  301.7  160.0  221.1   78.9  293.3  346.4  194.8  244.3
   16   83.2  292.5  188.2   41.6   99.7  318.0   19.1  236.8   91.1  144.2  352.5   42.0
   17  240.9   90.3  346.0  199.5  257.7  116.0  177.2   34.8  248.9  301.9  150.2  199.6
   18   38.6  248.0  143.8  357.4   55.7  274.1  335.2  192.7   46.7   99.6  307.8  357.3
   19  196.3   45.8  301.6  155.3  213.6   72.1  133.2  350.6  204.5  257.3  105.5  154.9
   20  354.0  203.5   99.4  313.2   11.6  230.1  291.2  148.5    2.4   55.0  263.1  312.6
   21  151.7    1.3  257.3  111.1  169.6   28.2   89.3  306.5  160.2  212.7   60.8  110.2
   22  309.4  159.1   55.1  269.0  327.6  186.2  247.3  104.4  318.0   10.4  218.5  267.8
   23  107.1  316.8  212.9   67.0  125.6  344.3   45.3  262.3  115.8  168.1   16.1   65.5
   24  264.8  114.6   10.8  224.9  283.6  142.3  203.3   60.2  273.5  325.9  173.8  223.1
   25   62.5  272.4  168.6   22.8   81.6  300.3    1.3  218.1   71.3  123.6  331.4   20.8
   26  220.2   70.1  326.4  180.7  239.6   98.4  159.3   16.0  229.1  281.3  129.1  178.4
   27   17.9  227.9  124.3  338.6   37.6  256.4  317.3  173.9   26.9   79.0  286.7  336.0
   28  175.6   25.7  282.1  136.6  195.6   54.5  115.3  331.8  184.7  236.6   84.4  133.7
   29  333.3  183.4   80.0  294.5  353.6  212.5  273.3  129.7  342.5   34.3  242.0  291.3
   30  131.1         237.8   92.4  151.6   10.5   71.3  287.6  140.2  192.0   39.7   89.0
   31  288.8          35.7         309.6         229.3   85.5         349.7         246.6

                                System 2
 Date    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
    1  280.7  252.8  286.3  262.0   90.0   70.7  262.8  245.0  224.5   50.2   23.1  204.1
    2   70.8   42.9   76.4   52.3  240.3  221.1   53.2   35.4   14.8  200.4  173.2  354.2
    3  220.8  193.0  226.6  202.5   30.6   11.5  203.6  185.7  165.0  350.5  323.2  144.2
    4   10.9  343.1   16.7  352.7  180.9  161.9  354.0  336.1  315.2  140.6  113.3  294.2
    5  160.9  133.2  166.9  143.0  331.2  312.3  144.4  126.4  105.5  290.8  263.3   84.2
    6  311.0  283.3  317.1  293.2  121.6  102.7  294.8  276.8  255.7   80.9   53.4  234.2
    7  101.0   73.4  107.2   83.4  271.9  253.0   85.3   67.1   45.9  231.0  203.4   24.2
    8  251.1  223.5  257.4  233.7   62.2   43.4  235.7  217.4  196.2   21.1  353.5  174.3
    9   41.1   13.6   47.6   23.9  212.5  193.8   26.1    7.8  346.4  171.2  143.5  324.3
   10  191.2  163.7  197.7  174.2    2.9  344.2  176.5  158.1  136.6  321.3  293.6  114.3
   11  341.3  313.8  347.9  324.4  153.2  134.6  326.9  308.4  286.8  111.5   83.6  264.3
   12  131.3  103.9  138.1  114.7  303.5  285.0  117.3   98.8   77.0  261.6  233.6   54.3
   13  281.4  254.1  288.2  264.9   93.9   75.4  267.7  249.1  227.2   51.7   23.7  204.3
   14   71.4   44.2   78.4   55.2  244.2  225.8   58.1   39.4   17.4  201.8  173.7  354.3
   15  221.5  194.3  228.6  205.5   34.5   16.2  208.5  189.7  167.6  351.9  323.7  144.3
   16   11.6  344.4   18.8  355.7  184.9  166.6  358.9  340.0  317.8  141.9  113.8  294.4
   17  161.6  134.5  169.0  146.0  335.2  317.0  149.3  130.4  108.0  292.0  263.8   84.4
   18  311.7  284.7  319.2  296.3  125.6  107.5  299.7  280.7  258.2   82.1   53.8  234.4
   19  101.8   74.8  109.3   86.5  275.9  257.9   90.1   71.0   48.4  232.2  203.9   24.4
   20  251.9  224.9  259.5  236.8   66.3   48.3  240.5  221.3  198.5   22.3  353.9  174.4
   21   41.9   15.0   49.7   27.1  216.6  198.7   30.9   11.5  348.7  172.4  143.9  324.4
   22  192.0  165.2  199.9  177.4    7.0  349.1  181.2  161.8  138.9  322.5  293.9  114.4
   23  342.1  315.3  350.1  327.6  157.4  139.5  331.6  312.1  289.0  112.5   84.0  264.4
   24  132.1  105.4  140.3  117.9  307.7  289.9  122.0  102.4   79.2  262.6  234.0   54.4
   25  282.2  255.6  290.5  268.2   98.1   80.3  272.4  252.7  229.4   52.7   24.0  204.5
   26   72.3   45.7   80.7   58.5  248.5  230.7   62.8   43.0   19.5  202.7  174.0  354.5
   27  222.4  195.8  231.0  208.8   38.8   21.1  213.2  193.2  169.7  352.8  324.1  144.5
   28   12.5  346.0   21.2  359.1  189.2  171.6    3.5  343.5  319.8  142.9  114.1  294.5
   29  162.6  136.1  171.4  149.4  339.6  322.0  153.9  133.8  110.0  292.9  264.1   84.5
   30  312.6         321.6  299.7  130.0  112.4  304.3  284.0  260.1   83.0   54.1  234.5
   31  102.7         111.8         280.3          94.6   74.3         233.1          24.5

                                System 3
 Date    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
    1  305.4  285.7  326.9  310.9  146.8  135.8  335.9  326.3  314.1  147.8  128.9  317.9
    2   95.7   76.1  117.3  101.4  297.4  286.4  126.5  116.9  104.6  298.2  279.2  108.2
    3  246.0  226.4  267.7  251.9   88.0   77.1  277.2  267.5  255.1   88.6   69.5  258.5
    4   36.3   16.8   58.2   42.4  238.6  227.8   67.9   58.2   45.6  239.0  219.9   48.7
    5  186.6  167.2  208.6  192.9   29.1   18.4  218.6  208.8  196.1   29.4   10.2  199.0
    6  337.0  317.5  359.0  343.4  179.7  169.1    9.2  359.4  346.6  179.7  160.5  349.3
    7  127.3  107.9  149.4  133.9  330.3  319.7  159.9  150.0  137.1  330.1  310.8  139.6
    8  277.6  258.3  299.9  284.4  120.9  110.4  310.6  300.6  287.6  120.5  101.1  289.9
    9   67.9   48.6   90.3   74.9  271.5  261.0  101.3   91.2   78.1  270.9  251.4   80.2
   10  218.2  199.0  240.7  225.4   62.1   51.7  251.9  241.8  228.5   61.3   41.7  230.4
   11    8.6  349.4   31.2   15.9  212.7  202.4   42.6   32.4   19.0  211.6  192.0   20.7
   12  158.9  139.8  181.6  166.5    3.3  353.0  193.3  183.0  169.5    2.0  342.3  171.0
   13  309.2  290.1  332.0  317.0  153.9  143.7  343.9  333.6  320.0  152.4  132.6  321.3
   14   99.6   80.5  122.5  107.5  304.5  294.4  134.6  124.2  110.4  302.7  282.9  111.5
   15  249.9  230.9  272.9  258.0   95.1   85.0  285.3  274.8  260.9   93.1   73.2  261.8
   16   40.2   21.3   63.4   48.6  245.7  235.7   75.9   65.3   51.3  243.5  223.5   52.1
   17  190.5  171.7  213.8  199.1   36.3   26.4  226.6  215.9  201.8   33.8   13.8  202.4
   18  340.9  322.1    4.3  349.6  186.9  177.1   17.3    6.5  352.2  184.2  164.1  352.7
   19  131.2  112.5  154.7  140.2  337.6  327.7  167.9  157.1  142.7  334.5  314.4  142.9
   20  281.6  262.8  305.2  290.7  128.2  118.4  318.6  307.6  293.1  124.9  104.7  293.2
   21   71.9   53.2   95.7   81.2  278.8  269.1  109.2   98.2   83.6  275.2  255.0   83.5
   22  222.2  203.6  246.1  231.8   69.4   59.8  259.9  248.7  234.0   65.6   45.3  233.8
   23   12.6  354.0   36.6   22.3  220.0  210.4   50.5   39.3   24.4  215.9  195.6   24.0
   24  162.9  144.4  187.1  172.9   10.7    1.1  201.2  189.8  174.9    6.3  345.9  174.3
   25  313.3  294.8  337.5  323.4  161.3  151.8  351.8  340.4  325.3  156.6  136.2  324.6
   26  103.6   85.3  128.0  114.0  311.9  302.5  142.5  130.9  115.7  306.9  286.5  114.9
   27  254.0  235.7  278.5  264.6  102.6   93.1  293.1  281.4  266.1   97.3   76.8  265.2
   28   44.3   26.1   69.0   55.1  253.2  243.8   83.8   72.0   56.5  247.6  227.0   55.4
   29  194.7  176.5  219.4  205.7   43.9   34.5  234.4  222.5  207.0   37.9   17.3  205.7
   30  345.0           9.9  356.3  194.5  185.2   25.0   13.0  357.4  188.3  167.6  356.0
   31  135.4         160.4         345.2         175.7  163.6         338.6         146.3