Exposure Time Calculator
Source Properties
J-band Magnitude
:
Model Spectrum
Effective Temperature in K (range from 2300 to 12000 K)
:
Logarithmic Surface Gravity (range from 0.0 to 6.0)
:
Planck
Effective Temperature in K
:
Observing Conditions
Airmass
:
Enter Conditions
V-Band Seeing at Zenith [arcsec]
:
V-Band Extinction Coefficient
:
Median Conditions
Median V-Band Seeing at Zenith [arcsec]:
0.9
Median V-Band Extinction Coefficient:
0.18
Output Options
Estimate SNR per resolution element for given Exposure Time
Estimate Exposure Time for given SNR and Wavelength
Exposure Time [sec]
:
SNR
:
Wavelength in Angstroem
:
Plots and Tables for SNR at exact Wavelength
Plots and Tables for SNR at maximum of corresponding order
Plots and Tables for SNR as median of corresponding order
→
Exposure Time [sec] for SNR at exact wavelength:
:
→
Exposure Time [sec] for SNR at maximum of corresponding order
:
→
Exposure Time [sec] for SNR as median of corresponding order
:
This Exposure Time Calculator is based on the code developed by
Thomas Stuber
during his Master Project at the LSW.
It is maintained by
Adrian Kaminski
.