Integration Time Calculator

The IGRINS-2 Integration Time Calculator for spectroscopy can be used to determine exposure times, S/N ratios, background levels for a wide range of source properties, and observing conditions.

In the four sections of this form, select the appropriate astronomical source, telescope and instrument configuration, observing conditions, and observation parameters. Click on the calculate button () at the bottom of any section to submit the parameters from all the sections to the server or the reset button () to reset all parameters to their defaults. The results are reported in a separate web page that can be resized and printed.

See the ITC Help for general guidance on use of the Integration Time Calculators, and the (more info) links for specific help on each section of the form.

If the form below does not appear then you may need to check with your system administrator about allowing communication with http://itc.gemini.edu:9080 through your firewall.