TD CERRO TOLOLO INTER-AMERICAN OBSERVATORY
 INSTRUMENT SECTION
 FILTER TRANSMISSION SCANNER


 FILTER IDENTIFICATION   6559/05
 DATE OF MEASUREMENT     
 FILTER SIZE             2 X 2 X .360 INCH
 FOCAL RATIO              13.5 
 TEMPERATURE [C]          22 
 PEAK WAVELENGTH [A]      6558 
 PEAK TRANSMISSION [%]    56.123 
 CENTER WAVELENGTH [A]    6557.5 
 BANDWIDTH [A]            7 
 COMMENTS:  6559A/5A 7-75


 WAVELENGTH              TRANSMISSION
  6490                    .105485 
  6492                    .0531773 
  6494                    .106809 
  6496                    .10744 
  6498                    .108079 
  6500                    .109379 
  6502                    .110497 
  6504                    .11108 
  6506                    .141443 
  6508                    .170794 
  6510                    .172861 
  6512                    .146242 
  6514                    .176471 
  6516                    .178412 
  6518                    .180288 
  6520                    .244126 
  6522                    .310463 
  6524                    .25102 
  6526                    .318066 
  6528                    .385976 
  6530                    .455137 
  6532                    .560132 
  6534                    .665115 
  6536                    .74174 
  6538                    .95498 
  6540                    1.17484 
  6542                    1.46853 
  6544                    1.90409 
  6546                    2.64003 
  6548                    3.84058 
  6550                    5.99196 
  6552                    13.0772 
  6554                    26.8064 
  6556                    50.0947 
  6558                    56.1228 
  6560                    39.8994 
  6562                    19.9843 
  6564                    10.83 
  6566                    6.55936 
  6568                    4.12121 
  6570                    2.78574 
  6572                    2.06441 
  6574                    1.63112 
  6576                    1.31189 
  6578                    1.02608 
  6580                    .867679 
  6582                    .701754 
  6584                    .574713 
  6586                    .539326 
  6588                    .458085 
  6590                    .372093 
  6592                    .331126 
  6594                    .287908 
  6596                    .293255 
  6598                    .197824 
  6600                    .201308 
  6602                    .204708 
  6604                    .207469 
  6606                    .105263 
  6608                    .106781 
  6610                    .0542594