Table 2. Filter and tilting details, sensitivities, and noise levels for three tilting photometers. 

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channel tilt angle  peak wavelength  bandwidth  sensitivity  noise level emission
         (deg)          (nm)           (nm)        (mV/R)       (R) 
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                          photometer 1 
  1       3.60         846.5           0.53        0.23         35      OH(6-2) 
  1       6.48         845.8           0.87          -           -      background
  1      11.52         843.0           1.43        0.092        87      OH(6-2) 
  2       0.00         558.5           0.41          -           -      background 
  2       6.48         557.7           0.70        0.44         6.8     OI 
                          photometer 2                  
  1       3.60         843.0           0.57        0.49         31      OH(6-2) 
  1       7.20         841.8           0.85          -           -      background 
  1      10.80         839.9           1.32        0.20         75      OH(6-2) 
  2       0.00         631.2           0.44          -           -      background 
  2       7.20         630.0           0.80        0.089       112      OI 
                          photometer 3
  1       0.00         486.6           0.42          -           -      background 
  1       8.64         485.1           0.71        13.25       2.3      Hbeta
  2       0.00         429.1           0.48          -           -      background 
  2       7.92         427.8           0.81        12.35       0.40     N2+(1NG) 
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