The HITRAN2012 Database contains 7,400,447 spectral lines for 47 different molecules, incorporating 120 isotopologues. Included in these 47 species are the oxygen atom (singlet) and the NO+ ion. Files for three of the molecules (ClONO2, SF6, and CF4) are stored separately in the /HITRAN2012/Supplemental/ folder.
See a list of molecules and their associated isotopologues
that are currently included in the HITRAN database.
You can see their allowable vibrational modes.
See a list of
molecules represented by infrared absorption cross-sections
that are currently included in the HITRAN compilation.
The uncertainty indices used in HITRAN are defined in this table.
Database formats are shown for the most recent HITRAN compilations.
It is helpful to view the tree structure of the HITRAN compilation.