%           mjd     real     imag    sigma  (all in microas)
1984.0  45709.3  -282.05  -188.36    21.24
1984.5  45891.9  -300.66  -202.98    19.00
1985.0  46074.5  -267.59  -191.64    17.41
1985.5  46257.1  -263.73  -173.44    15.55
1986.0  46439.8  -245.81  -165.73    14.11
1986.5  46622.4  -202.02  -161.24    12.35
1987.0  46805.0  -197.65   -79.60    10.95
1987.5  46987.6  -195.73   -89.38    10.22
1988.0  47170.3  -183.60   -62.94     9.44
1988.5  47352.9  -186.47   -40.27     8.67
1989.0  47535.5  -163.94   -31.62     8.19
1989.5  47718.1  -168.44    -0.27     7.83
1990.0  47900.8  -160.25    -4.53     7.49
1990.5  48083.4  -150.39    10.96     7.05
1991.0  48266.0  -147.03    10.23     6.19
1991.5  48448.6  -132.55    13.37     5.73
1992.0  48631.3  -135.01    19.95     5.41
1992.5  48813.9  -124.57     8.90     5.11
1993.0  48996.5  -119.76    17.77     4.92
1993.5  49179.1  -120.75     7.09     4.59
1994.0  49361.8  -118.49    19.57     4.54
1994.5  49544.4  -120.89    20.54     4.38
1995.0  49727.0  -111.64    16.11     4.33
1995.5  49909.6  -107.88    18.75     4.30
1996.0  50092.3  -105.36    12.41     4.27
1996.5  50274.9   -94.92     2.77     4.30
1997.0  50457.5   -86.61    -3.63     4.23
1997.5  50640.1   -71.22   -12.89     4.28
1998.0  50822.8   -46.65   -28.54     4.56
1998.5  51005.4   -36.82   -41.45     4.62
1999.0  51188.0   -26.61   -57.22     4.60
1999.5  51370.6    -8.35   -58.95     4.59
2000.0  51553.3     6.17   -60.91     4.51
2000.5  51735.9    28.23   -59.68     4.51
2001.0  51918.5    34.32   -70.89     4.30
2001.5  52101.1    54.52   -73.21     4.21
2002.0  52283.8    60.92   -66.11     4.31
2002.5  52466.4    77.35   -75.68     4.13
2003.0  52649.0    93.22   -60.86     4.19
2003.5  52831.6    98.79   -50.99     4.22
2004.0  53014.3   126.05   -33.29     4.24
2004.5  53196.9   126.50   -14.31     4.21
2005.0  53379.5   142.11     4.13     4.19
2005.5  53562.1   147.04    34.13     3.90
2006.0  53744.8   153.17    53.41     3.88
2006.5  53927.4   149.76    75.28     3.65
2007.0  54110.0   144.07    82.21     3.73
2007.5  54292.6   134.35    97.29     3.79
2008.0  54475.3   134.24   114.27     3.75
2008.5  54657.9   129.11   148.22     3.93
2009.0  54840.5   127.40   157.00     3.89
2009.5  55023.1   126.07   174.93     3.81
2010.0  55205.8   122.38   180.56     3.73
2010.5  55388.4   132.46   187.31     3.76
2011.0  55571.0   126.67   191.32     3.44
2011.5  55753.6   129.19   193.10     3.39
2012.0  55936.3   126.47   199.59     3.14
2012.5  56118.9   114.55   179.59     3.21
2013.0  56301.5   112.35   176.10     3.17
2013.5  56484.1   110.56   169.42     3.17
2014.0  56666.8   121.23   165.38     3.07
2014.5  56849.4   122.92   170.93     2.96
2015.0  57032.0   124.05   166.61     2.93
2015.5  57214.6   125.37   158.42     3.03
2016.0  57397.3   125.46   153.74     3.05
2016.5  57579.9   129.09   148.57     3.13
2017.0  57762.5   128.21   148.67     3.23
2017.5  57945.1   122.46   146.72     3.32
2018.0  58127.8   113.16   151.60     3.48