WFC3 IR Spectroscopic Scan Mode ETC

This form will calculate the count rates and S/N ratio for a simulated spectrum of ONE point source in a WFC3 IR spectroscopic scan mode observation.

This form differs from the stare mode IR Spectroscopic ETC in section 2 only.

For general help on how to use this Exposure Time Calculator or for help on various topics, click on the appropriate highlighted words.
Please ensure that you have read the current release notes and recent news before submitting any ETC calculations.