Log In General Info News


  • You are not obliged to log in the system but the registration allows you to achieve some extra functionality
  • The registration in the system is free. Just click the button "New user" and fill in the form that appears.


All users (unregistered and registered) may:

  • Survey the HITRAN database content for a specified spectral range
  • Specify a mixture of vibrational bands for a given HITRAN isotopologue for a selected wavenumber region
  • Specify a gas mixture from a set of built-in standard atmospheric concentration profiles for a selected wavenumber region
  • Visualize a stick intensity diagram of the specified mixture
  • Simulate one of built-in spectral functions (absorption coefficient profile, transmittance, absorption, or radiance) of the mixture spectrum convolved with one of built-in apparatus functions for various physical (temperature, pressure, pathlength) and simulation (intensity cutoff, contour shape, wing length, resolution, etc) conditions
  • Download simulation results in text format on user's computer.

Registered users may also:

  • Prepare user defined gas mixtures
  • Save simulation results on the server side and compare them
  • Upload user's spectra to the server side and compare them to simulated spectra from HITRAN data

Usage agreement

Users of the Hitran on the Web Information System agree to reference it in scientific publications, presentations and communications if the system is useful for their investigations.


20 January 2014 07:28:20 GMT
13th International HITRAN Conference (united with the 12th ASA conference) will be held on June, 23-25, 2014 at the Harvard-Smithsonian Center for Astrophysics in Cambridge, Massachusetts, USA
16 October 2013 11:37:02 GMT
Line-by-line N2 updates 2013 of the HITRAN database are now available
12 October 2013 11:33:16 GMT
Line-by-line H2 updates 2013 of the HITRAN database are now available
11 June 2013 05:30:59 GMT
The new edition of HITRAN (HITRAN2012) has passed testing and is now available.
07 January 2013 09:47:36 GMT
An update of the hydrogen halide (HF, HCl, HBr, and HI) line parameters has been performed.
18 October 2012 10:17:14 GMT
Line-by-line list of cyanoacetylene (HC3N) is now available
12 October 2012 11:11:06 GMT
Line-by-line ClO updates 2012 of the HITRAN database are now available

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