CERRO TOLOLO INTER-AMERICAN OBSERVATORY
 INSTRUMENT SECTION
 FILTER TRANSMISSION SCANNER


 FILTER IDENTIFICATION   6890/100
 DATE OF MEASUREMENT     2 X 2 X .373
 FILTER SIZE             2 X 2 X .255 INCH
 FOCAL RATIO              13.5 
 TEMPERATURE [C]          22 
 PEAK WAVELENGTH [A]      6892 
 PEAK TRANSMISSION [%]    77.152 
 CENTER WAVELENGTH [A]    6888.5 
 BANDWIDTH [A]            95 
 COMMENTS:  6890/100 SFI


 WAVELENGTH              TRANSMISSION
  6780                    .334076 
  6782                    .189036 
  6784                    .153139 
  6786                    .0389105 
  6788                    .0397298 
  6790                    .0799041 
  6792                    .204332 
  6794                    .287121 
  6796                    .583333 
  6798                    .881242 
  6800                    .94583 
  6802                    1.13985 
  6804                    1.37229 
  6806                    1.78731 
  6808                    2.24014 
  6810                    2.64719 
  6812                    3.31157 
  6814                    4.08257 
  6816                    4.78424 
  6818                    5.57692 
  6820                    6.77467 
  6822                    8.24121 
  6824                    9.73497 
  6826                    11.7281 
  6828                    14.2632 
  6830                    17.0485 
  6832                    19.8267 
  6834                    23.6712 
  6836                    26.9399 
  6838                    30.7562 
  6840                    34.9062 
  6842                    40.3002 
  6844                    44.8174 
  6846                    49.3215 
  6848                    54.2393 
  6850                    56.7617 
  6852                    62.5156 
  6854                    64.1345 
  6856                    65.892 
  6858                    67.709 
  6860                    70.3003 
  6862                    71.9973 
  6864                    72.1698 
  6866                    72.3577 
  6868                    73.6294 
  6870                    73.6033 
  6872                    73.9774 
  6874                    74.1429 
  6876                    74.746 
  6878                    75.2585 
  6880                    75.3754 
  6882                    75.5368 
  6884                    75.5832 
  6886                    76.3389 
  6888                    76.1364 
  6890                    76.9231 
  6892                    77.1523 
  6894                    75.6939 
  6896                    75.4056 
  6898                    76.0908 
  6900                    75.1742 
  6902                    74.9331 
  6904                    75.8993 
  6906                    74.3012 
  6908                    74.1636 
  6910                    72.6415 
  6912                    73.7911 
  6914                    71.193 
  6916                    70.0787 
  6918                    69.2462 
  6920                    68.7885 
  6922                    64.4467 
  6924                    61.6977 
  6926                    59.9352 
  6928                    55.8792 
  6930                    51.7544 
  6932                    46.7547 
  6934                    43.3639 
  6936                    39.0751 
  6938                    35.0877 
  6940                    30.7509 
  6942                    25.7282 
  6944                    22.4939 
  6946                    19.202 
  6948                    16.1857 
  6950                    13.7532 
  6952                    10.8247 
  6954                    8.83905 
  6956                    7.44681 
  6958                    6.23342 
  6960                    4.75544 
  6962                    3.67847 
  6964                    2.5641 
  6966                    1.73913 
  6968                    1.02489 
  6970                    .595238 
  6972                    .15083 
  6974                    .308166 
  6976                    .769231 
  6978                    .638978 
  6980                    1.60772 
  6982                    2 
  6984                    2.18121 
  6986                    2.54237 
  6988                    2.00334 
  6990                    2.4055