Abstract:

The Pointed Telescope Assembly (PTS) consists of a telescope, its Coudé relay optics, a two-axis gimbal mechanism, and a cover/caging device. These components, their mechnaisms, the requirements, and some of the trade-offs leading to the final design are described in this paper. The PTS supplies light to the interferometer of the High Resolution Doppler Imager (HRDI) to be used to study upper atmospheric wind velocity.