1986.89 2446736.72 2446745.62    9  6.397  a   
1986.85 2446754.66 2446761.25    6  6.397  a    
1987.93 2447129.62 2447143.59    9  6.390  b      
1989.07 2447549.55 2447557.55    8  6.377  c    
1989.95 2447869.61 2447876.61    7  6.383  d    
1990.44 2448029.89 2448078.06   12  6.385  e    
1990.90 2448200.77 2448245.57   16  6.385  f    
1991.07 2448280.57 2448290.00   17  6.381  e    
1991.80 2448536.73 2448559.67   12  6.388  f    
1991.89 2448561.66 2448606.66   14  6.395  f    
1992.79 2448897.72 2448928.67   16  6.380  f    
1992.88 2448930.67 2448958.69   15  6.383  f     
1993.71 2449234.80 2449263.74   24  6.388  f,g
1993.81 2449270.74 2449295.71   18  6.387  f,g
1993.92 2449297.68 2449353.61   27  6.389  f
1994.82 2449612.79 2449689.62   45  6.386  f
1995.77 2449986.77 2450013.75   14  6.377  g
1995.95 2450035.72 2450092.59   10  6.385  g
1996.92 2450396.62 2450441.65   16  6.382  f
1997.80 2450714.80 2450768.69   36  6.375  f,g
1998.83 2451085.77 2451148.65   28  6.390  g
1998.99 2451151.74 2451197.58   32  6.387  f,g
1999.77 2451447.93 2451472.84    6  6.387  f
2000.02 2451543.62 2451560.59   10  6.385  f