%           mjd      real      imag     sigma  (all in microas)
1979.9  44203.2   -359.65     63.82    125.49
1980.9  44568.5   -259.63   -109.90     82.65
1981.9  44933.7   -161.74   -105.82     56.76
1982.9  45299.0   -274.21   -139.43     40.48
1983.9  45664.2   -277.34   -195.48     30.76
1984.9  46029.5   -283.58   -161.76     27.11
1985.9  46394.7   -246.21   -142.98     25.47
1986.9  46760.0   -137.78    -49.68     16.28
1987.9  47125.2   -145.59    -48.55     13.06
1988.9  47490.5   -138.64     -8.33     10.64
1989.9  47855.7   -139.83      7.92      9.31
1990.9  48221.0   -124.14     24.88      7.91
1991.9  48586.2   -114.47     30.25      7.16
1992.9  48951.5   -105.63     23.63      6.45
1993.9  49316.7   -115.13     22.61      5.71
1994.9  49682.0   -114.67     21.80      5.43
1995.9  50047.2   -103.81     16.29      5.11
1996.9  50412.5    -80.47     -0.17      5.06
1997.9  50777.7    -54.08    -26.64      5.20
1998.9  51143.0    -36.35    -63.81      5.08
1999.9  51508.2      1.38    -62.60      4.81
2000.9  51873.5     36.77    -58.63      4.60
2001.9  52238.7     65.69    -50.66      4.47
2002.9  52604.0    100.44    -58.80      4.15
2003.9  52969.2    118.01    -40.70      4.11
2004.9  53334.5    133.48     -5.26      4.09
2005.9  53699.7    146.74     43.45      3.81
2006.9  54065.0    140.73     69.33      3.63
2007.9  54430.2    136.21     95.29      3.65
2008.9  54795.5    130.93    125.10      3.84
2009.9  55160.7    122.91    158.81      3.71
2010.9  55526.0    134.21    169.02      3.43
2011.9  55891.2    125.43    183.13      3.34
2012.9  56256.5    113.26    169.84      3.48
2013.9  56621.7    120.21    161.14      3.39
2014.9  56987.0    125.72    161.10      3.27
2015.9  57352.2    128.38    155.43      3.18
2016.9  57717.5    128.82    145.25      3.11
2017.9  58082.7    110.10    128.63      3.46
2018.9  58448.0     86.17     99.26      4.01
2019.9  58813.2     75.64    100.17      4.31
2020.9  59178.5     56.98     96.84      4.39
2021.9  59543.7     50.10     82.18      4.25
2022.9  59909.0     37.44     63.19      4.23
2023.9  60274.2     23.86     39.47      4.19
2024.9  60639.5      9.80     29.31      4.24
2025.9  61004.7     14.96     28.53      5.02