IMPROVED LABORATORY REST FREQUENCY MEASUREMENTS AND PRESSURE SHIFT AND BROADENING PARAMETERS FOR THE J = 2 [- 1 AND J = 3 [- 2 ROTATIONAL TRANSITIONS OF CO

The J = 2 <-- 1, 3 <-- 2, and the 4 <-- 3 rotational transitions of CO have been measured using the RAD-2 microwave spectrometer at the Applied Physics Institute in Nizhny Novgorod. Pressure shift and broadening parameters were measured for the J = 2 <-- and J = 3 <-- 2 transitions. This was done with CO (self-broadening) and CO2 (foreign gas-broadening). The new laboratory rest frequency measurements are accurate to +/- 2 kHz (2-sigma uncertainty). These improved frequency measurements should be useful in planetary atmosphere research to determine more accurate wind velocities in the Venusian atmosphere.