%           mjd     real     imag    sigma  (all in microas)
1979.9  44203.2   -359.65     63.82    125.49
1980.4  44385.8   -335.54    -11.26    104.91
1980.9  44568.5   -259.63   -109.90     82.65
1981.4  44751.1   -163.34    -66.60     60.86
1981.9  44933.7   -147.21    -88.17     56.44
1982.4  45116.3   -212.21    -88.54     50.77
1982.9  45299.0   -288.61   -119.12     40.18
1983.4  45481.6   -298.16   -143.60     35.90
1983.9  45664.2   -288.66   -176.55     31.14
1984.4  45846.8   -284.27   -158.14     29.25
1984.9  46029.5   -290.88   -148.97     27.31
1985.4  46212.1   -255.86   -124.23     25.70
1985.9  46394.7   -253.29   -129.13     25.06
1986.4  46577.3   -175.87   -125.78     20.70
1986.9  46760.0   -142.69    -44.39     16.62
1987.4  46942.6   -155.31    -38.49     14.70
1987.9  47125.2   -155.93    -44.49     13.57
1988.4  47307.8   -146.89    -10.10     12.29
1988.9  47490.5   -146.16     -6.03     11.28
1989.4  47673.1   -140.13     14.53     10.51
1989.9  47855.7   -143.93     12.21     10.09
1990.4  48038.3   -138.13     19.20      9.75
1990.9  48221.0   -135.13     23.95      9.03
1991.4  48403.6   -128.93     20.22      8.61
1991.9  48586.2   -127.69     27.32      8.18
1992.4  48768.8   -123.94     17.06      7.80
1992.9  48951.5   -118.24     22.31      7.37
1993.4  49134.1   -136.38     25.06      7.02
1993.9  49316.7   -128.27     20.50      6.94
1994.4  49499.3   -124.63     28.80      6.79
1994.9  49682.0   -119.24     29.45      6.71
1995.4  49864.6   -112.98     27.04      6.73
1995.9  50047.2   -109.87     24.16      6.61
1996.4  50229.8    -99.56     10.99      6.68
1996.9  50412.5    -89.08      8.56      6.62
1997.4  50595.1    -81.16      0.42      6.52
1997.9  50777.7    -59.04    -19.45      6.79
1998.4  50960.3    -47.93    -32.52      6.72
1998.9  51143.0    -37.64    -56.51      6.52
1999.4  51325.6    -22.16    -58.29      6.64
1999.9  51508.2     -6.55    -65.88      6.52
2000.4  51690.8     20.60    -70.22      6.47
2000.9  51873.5     27.61    -66.28      6.45
2001.4  52056.1     42.31    -72.65      6.31
2001.9  52238.7     56.07    -62.13      6.51
2002.4  52421.3     63.57    -71.71      6.47
2002.9  52604.0     95.27    -65.38      6.52
2003.4  52786.6     86.14    -51.11      6.77
2003.9  52969.2    105.75    -49.96      6.73
2004.4  53151.8    104.39    -26.70      6.89
2004.9  53334.5    114.99    -11.57      6.96
2005.4  53517.1    127.02     17.19      6.68
2005.9  53699.7    131.68     44.60      6.68
2006.4  53882.3    133.98     61.53      6.61
2006.9  54065.0    124.46     70.70      6.57
2007.4  54247.6    125.72     81.44      6.44
2007.9  54430.2    130.46     95.09      6.40
2008.4  54612.8    121.54    109.64      6.81
2008.9  54795.5    117.83    116.36      7.17
2009.4  54978.1    113.40    127.23      7.11
2009.9  55160.7    100.73    131.62      7.13
2010.4  55343.3    115.35    134.98      7.02
2010.9  55526.0    107.40    136.47      6.84
2011.4  55708.6    112.28    137.74      7.39
2011.9  55891.2     96.53    137.58      7.72
2012.4  56073.8     94.74    126.02      7.52
2012.9  56256.5     83.49    121.13      7.88
2013.4  56439.1     85.42    111.07      8.02
2013.9  56621.7     87.44    112.73      8.40
2014.4  56804.3     90.53    114.78      8.61
2014.9  56987.0     92.68    146.44      7.46
2015.4  57169.6    103.70    160.00      6.96
2015.9  57352.2    127.98    167.93      6.22
2016.4  57534.8    124.61    160.36      5.67
2016.9  57717.5    121.80    145.48      5.28
2017.4  57900.1    112.54    142.63      5.20
2017.9  58082.7    112.02    142.78      5.30
2018.4  58265.3    110.84    143.04      5.34
2018.9  58448.0    112.51    143.45      5.48
2019.4  58630.6    112.60    146.92      5.48
2019.9  58813.2    113.43    147.68      5.57
2020.4  58995.8    115.19    149.76      5.68