A computed line list for the H2D+ molecular ion.
T. Sochi, J. Tennyson, Mon. Not. R. Astron. Soc. 405, 2345-2350 (2010)

The line list is split into two files in the ExoMol format: one gives the
energy levels identified by an integer ID, the other gives the transition
Einstein A-coefficient and refers to the upper and lower states through their
IDs.

Byte-by-byte Description of file: 1H2-2H_p__ST.states
-------------------------------------------------------------------------------
   Bytes Format Units   Label     Explanations
-------------------------------------------------------------------------------
  1 - 12  I12    ---     Level     [1,33330] Index of the level
 14 - 25  F12.6  cm-1    E         [0,18500] Energy of the level
 27 - 32  I6     ---     gtot      [1,369] Total degeneracy(1)
 34 - 40  I7     ---     J         [0,20] Total angular momentum quanum number
 42       A1     ---     par       [-,+] Total parity
 44 - 45  I1     ---     Sym       [1,4] Symmetry block number(2)
 47 - 56  I10    ---     N         Reference within symmetry block
 58       A1     ---     ns-isomer [o,p] label identifying nuclear spin isomer
 60 - 61  A2     ---     Gamma_rve [A1,A2,B1,B2] total symmetry species
 63 - 64  I2    ---     v1        [-2,2] v1 symmetric stretch quantum number
 66 - 67  I2    ---     v2        [-2,3] v2 bend quantum number
 69 - 70  I2    ---     v3        [-2,2] v3 asymmetric stretch quantum number
 72 - 73  I2    ---     Ka        [-2,16] Ka rotational quantum number
 75 - 76  I2    ---     Kc        [-2,20] Kc rotational quantum number
-------------------------------------------------------------------------------
(1) Total degeneracy including nuclear spin factor: 3 for para-H2D+ and 9 for
    ortho-H2D+
(2) Table of symmetry block indices:
          ----------------------------------------------------------
           J parity (even/odd)              e  e  e  e    o  o  o  o
           vibrational basis symmetry (q)   e  e  o  o    e  e  o  o
           rotational parity (p)            e  o  e  o    e  o  e  o
           ortho/para state  (O/P)          P  O  O  P    O  P  P  O
           Symmetry Block number (code)     1  3  4  2    3  1  2  4
          ----------------------------------------------------------

Byte-by-byte Description of file: 1H2-2H_p__ST.trans
-------------------------------------------------------------------------------
   Bytes Format Units   Label     Explanations
-------------------------------------------------------------------------------
i'      I12     ---     upper state ID
i"      I12     ---     lower state ID
A       ES10.4  s-1     Einstein A-factor
-------------------------------------------------------------------------------

References
----------
[1] T. Sochi, J. Tennyson, "A computed line list for the H2D+ molecular ion.",
Mon. Not. R. Astron. Soc. 405, 2345-2350 (2010).