%           mjd     real     imag    sigma  (all in microas)
1984.0  45709.3  -282.20  -188.33    21.24
1984.5  45891.9  -300.81  -202.92    19.01
1985.0  46074.5  -267.71  -191.57    17.42
1985.5  46257.1  -263.86  -173.37    15.55
1986.0  46439.8  -245.86  -165.69    14.12
1986.5  46622.4  -202.00  -161.20    12.35
1987.0  46805.0  -197.72   -79.58    10.95
1987.5  46987.6  -195.76   -89.38    10.22
1988.0  47170.3  -183.63   -62.93     9.44
1988.5  47352.9  -186.49   -40.34     8.67
1989.0  47535.5  -163.97   -31.72     8.20
1989.5  47718.1  -168.51    -0.40     7.83
1990.0  47900.8  -160.27    -4.61     7.49
1990.5  48083.4  -150.46    10.93     7.05
1991.0  48266.0  -147.05    10.25     6.19
1991.5  48448.6  -132.56    13.44     5.73
1992.0  48631.3  -135.04    20.01     5.41
1992.5  48813.9  -124.59     8.97     5.11
1993.0  48996.5  -119.79    17.81     4.92
1993.5  49179.1  -120.79     7.11     4.58
1994.0  49361.8  -118.52    19.61     4.54
1994.5  49544.4  -120.94    20.56     4.38
1995.0  49727.0  -111.68    16.12     4.33
1995.5  49909.6  -107.94    18.76     4.30
1996.0  50092.3  -105.42    12.42     4.26
1996.5  50274.9   -94.97     2.78     4.30
1997.0  50457.5   -86.65    -3.61     4.23
1997.5  50640.1   -71.26   -12.89     4.28
1998.0  50822.8   -46.71   -28.57     4.56
1998.5  51005.4   -36.87   -41.50     4.62
1999.0  51188.0   -26.66   -57.26     4.60
1999.5  51370.6    -8.40   -58.98     4.59
2000.0  51553.3     6.13   -60.93     4.50
2000.5  51735.9    28.14   -59.78     4.50
2001.0  51918.5    34.21   -71.01     4.30
2001.5  52101.1    54.44   -73.32     4.21
2002.0  52283.8    60.83   -66.25     4.31
2002.5  52466.4    77.26   -75.81     4.12
2003.0  52649.0    93.15   -60.98     4.19
2003.5  52831.6    98.72   -51.09     4.22
2004.0  53014.3   125.99   -33.36     4.24
2004.5  53196.9   126.45   -14.36     4.21
2005.0  53379.5   142.07     4.13     4.19
2005.5  53562.1   147.02    34.14     3.90
2006.0  53744.8   153.17    53.42     3.89
2006.5  53927.4   149.76    75.30     3.65
2007.0  54110.0   144.08    82.22     3.73
2007.5  54292.6   134.34    97.26     3.79
2008.0  54475.3   134.23   114.26     3.75
2008.5  54657.9   129.09   148.13     3.93
2009.0  54840.5   127.39   156.92     3.89
2009.5  55023.1   126.13   174.85     3.81
2010.0  55205.8   122.44   180.49     3.73
2010.5  55388.4   132.54   187.25     3.76
2011.0  55571.0   126.73   191.31     3.45
2011.5  55753.6   129.26   193.05     3.39
2012.0  55936.3   126.53   199.54     3.14
2012.5  56118.9   114.68   179.55     3.21
2013.0  56301.5   112.48   176.06     3.17
2013.5  56484.1   110.68   169.38     3.17
2014.0  56666.8   121.35   165.34     3.07
2014.5  56849.4   123.00   170.84     2.96
2015.0  57032.0   124.86   167.30     2.97
2015.5  57214.6   126.16   159.10     3.07
2016.0  57397.3   126.35   154.28     3.10
2016.5  57579.9   129.98   149.00     3.18
2017.0  57762.5   129.13   149.07     3.28
2017.5  57945.1   123.24   147.22     3.38
2018.0  58127.8   113.90   151.90     3.55