Exposure Time Calculator

Object Properties
Filter for Object Magnitude Definition
Instrument & Sky Setting
Exposure Setting

Calculation Details

For object's model spectrum, temperatures above 2200K will load Phoenix and temperatures below 2200K will load Sonora. For the method used for CCF SNR, see compute_ccf_snr_matchedfilter in PSI-sim. For special cases or custom simulations, please refer Specsim.