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


 FILTER IDENTIFICATION   6820/100
 DATE OF MEASUREMENT     
 FILTER SIZE             2 X 2 X .181 INCH
 FOCAL RATIO              13.3 
 TEMPERATURE [C]          22 
 PEAK WAVELENGTH [A]      6822 
 PEAK TRANSMISSION [%]    81.202 
 CENTER WAVELENGTH [A]    6813 
 BANDWIDTH [A]            104 
 COMMENTS:  6820/100 SFI


 WAVELENGTH              TRANSMISSION
  6670                    .265957 
  6672                    .256379 
  6674                    .284653 
  6676                    .301697 
  6678                    .320924 
  6680                    .365297 
  6682                    .382586 
  6684                    .388219 
  6686                    .42131 
  6688                    .495663 
  6690                    .489374 
  6692                    .552173 
  6694                    .586804 
  6696                    .624093 
  6698                    .711322 
  6700                    .746269 
  6702                    .890969 
  6704                    .936157 
  6706                    1.05492 
  6708                    1.18353 
  6710                    1.2896 
  6712                    1.4791 
  6714                    1.65873 
  6716                    1.83456 
  6718                    2.08825 
  6720                    2.27428 
  6722                    2.64843 
  6724                    3.01596 
  6726                    3.3955 
  6728                    3.94027 
  6730                    4.52645 
  6732                    5.16895 
  6734                    6.15043 
  6736                    7.02875 
  6738                    8.24155 
  6740                    9.63647 
  6742                    11.1285 
  6744                    12.886 
  6746                    14.9349 
  6748                    17.2995 
  6750                    19.9916 
  6752                    23.0508 
  6754                    27.0568 
  6756                    30.0699 
  6758                    34.406 
  6760                    38.5494 
  6762                    43.6537 
  6764                    48.4543 
  6766                    51.8795 
  6768                    56.4226 
  6770                    60.4829 
  6772                    63.8323 
  6774                    66.2476 
  6776                    69.2825 
  6778                    71.151 
  6780                    73.376 
  6782                    74.5518 
  6784                    75.4355 
  6786                    76.3627 
  6788                    77.2305 
  6790                    78.1546 
  6792                    78.4329 
  6794                    78.701 
  6796                    79.2055 
  6798                    80.0443 
  6800                    79.7725 
  6802                    80.0852 
  6804                    80.349 
  6806                    80.9302 
  6808                    80.7658 
  6810                    81.1012 
  6812                    80.8992 
  6814                    81.3116 
  6816                    80.7263 
  6818                    81.0558 
  6820                    81.0271 
  6822                    81.202 
  6824                    80.6132 
  6826                    81.8499 
  6828                    81.1247 
  6830                    80.9631 
  6832                    80.7714 
  6834                    79.5562 
  6836                    80.6477 
  6838                    78.9586 
  6840                    79.9039 
  6842                    79.0896 
  6844                    78.2519 
  6846                    77.3772 
  6848                    76.6882 
  6850                    73.9055 
  6852                    70.8297 
  6854                    68.2981 
  6856                    62.9036 
  6858                    59.2994 
  6860                    52.4826 
  6862                    48.9898 
  6864                    42.758 
  6866                    37.7065 
  6868                    32.9029 
  6870                    28.182 
  6872                    24.8522 
  6874                    22.1297 
  6876                    19.3676 
  6878                    16.6401 
  6880                    14.4669 
  6882                    12.1884 
  6884                    10.481 
  6886                    9.10614 
  6888                    7.98392 
  6890                    7.22997 
  6892                    6.13569 
  6894                    5.30748 
  6896                    4.70397 
  6898                    4.31818 
  6900                    3.71747 
  6902                    3.25393 
  6904                    2.96583 
  6906                    2.58303 
  6908                    2.32923 
  6910                    2.08996