The COBALT data file follows the "1001" Gaines-Hipskind format as described in the document entitled -
"ASCII File Format Specification for Data Exchange" found at:
http://espoarchive.nasa.gov/archive/docs/formatspec_2_0.pdf

The COBALT instrument (Carbon monOxide By Attenuated Laser Transmission) is described in the paper -
R. Provencal, M. Gupta, T. G. Owano, D. S. Baer, K. N. Ricci, A. O"Keefe, and J. R. Podolske, "Cavity-enhanced quantum-cascade laser-based instrument for carbon monoxide measurements", Appl.Opt. 44, 6712-6717 (2005).