Infrared Observations of Comets 1969g and 1969i

Ground-based and airborne infrared observations have been made over the wavelength range 1.25- 70 of Comets Tago-Sato-Kosaka (1969g) and Bennett (1969i). The flux distributions in wavelength and across the coma and tail at fixed wavelengths were determined. The observations are similar to previous work in that they show color temperatures higher than those of a blackbody. An outburst of infrared luminosity was seen in Comet Tago-Sato-Kosaka.