Observing Proposal Preparation Checklist

Follow these steps to work out the instrumental setup and exposure times needed to carry out your observations:

• Decide what wavelengths you want to cover with high priority, and what wavelengths have lower priority.

• Decide what S/N per pixel you require at these wavelengths.

• Use ECHMAP --- Interactive Wavelength Coverage Simulator to work out an acceptable format. Refer to entries in Basic Description of the Spectrograph for available choices.

• Compute either the monochromatic magnitudes

  AB = -2.5 log(F_lambda) + - 5 log(lambda) - 22.40
  
     = -2.5 log(f_nu) - 48.59 
  

  or the monochromatic flux per Angstrom (F_lambda) for the line or lines which will require the longest exposure time.

• Use the Exposure Time Calculator to find the exposure time required to reach the desired S/N.

• Iterate as required.

• Describe what you have done here, and give the results, in answer to the proposal question about "Technical and Scientific Feasibility".