Abstract:
Mesosphere Lower Thermosphere Photometry (MLTP) has been designed at ARIES for studying mesosphere lower thermosphere coupling processes. MLTP utilizes f/2 optics with 4° circular field of view. It has seven narrow bandwidth (FWHM ~ 4 Å) interference filters mounted on a geared filter plate housed in filter chamber under precise temperature controlled conditions. Out of these seven filters at 630 nm is meant to monitor F- region airglow emission due to atomic oxygen. MLTP has been successfully installed and made operational at Space Weather Laboratory of ARIES.