Knowledge Bank

“The Michigan State University Digital Computer (MISTIC) has been programmed to perform the following operations: (1) To calculate, from a set of molecular constants, the frequency and intensity of all the transitions desired for both parallel and perpendicular bands of prolate and oblate symmetric top molecules. (2) To determine, by the method of least squares, the molecular constants for the ground and excited state involved in the perpendicular bands of symmetric top molecules. This program is used when the method of combination differences cannot be applied, and uses, for example, the individual lines in the and series. Provision has been included for eliminating those constants already known from other sources, e. g., microwave spectroscopy. These programs will be outlined, and the choice of a scheme of analysis which minimizes round-off and other errors will be discussed.”