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Throughput

  • Starting with code from Will Saunders (Excel); ported to python with spline interpolation; conversion complete and shown below:

 
 

Inputs

Item Par/Data Data Type Prior Range Units From Where Explanation
Spectra data array n/a n/a n/a Tiling galaxy spectra
Types of glass/coatings par array(string) n/a n/a n/a Optics which glass and coatings are used
ADC par string 'no' yes,no n/a Optics will we use an ADC?

 
 

Outputs

Item Par/Data Data Type Prior Range Units To Where Explanation
transmission for each galaxy spectrum data array(double) n/a n/a n/a ETC the spectrum altered by the optics
air mass for each galaxy data (depends on galaxy position at a given time) float n/a 1.0, 3.0 n/a Survey Strategy air mass

 
 
 
 
 
 

Exposure Time (or S/N) Calculator

Inputs

Item Par/Data Data Type Prior Range Units From Where Explanation
transmission for each galaxy spectrum data array(double) n/a n/a n/a throughput the spectrum altered by the optics

 
 

Outputs

Item Par/Data Data Type Prior Range Units From Where Explanation
line S/N data array(double) n/a n/a n/a ETC signal-to-noise

 
 

References for ETC

 
 
 
 
 
 

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