Moving Target Tracking for a Next Generation Space Telescope

Details Moving Target Tracking for a Next Generation Space Telescope Moving Target Tracking for a Next Generation Space Telescope

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ngst.conf..274s&link_type=abstract

The Next Generation Space Telescope, p. 274

Physics

Optics

Tracking Problem, Multiple Target Tracking, Spaceborne Telescopes, Atmospheric Effects, Drag, Feedback Control, Vibration Damping, Lateral Control, Hubble Space Telescope, Tethering

Scientific paper

The Hubble Space Telescope required a complex method for tracking targets in motion in the solar system, due mostly to atmospheric drag effects. A NGST in high earth orbit, or on the Moon, would not suffer these drag effects, thus mitigating the tracking problem. Many of the HST problems arise from the "open-loop" nature of the tracking method. An NGST would be better off if it could use "closed-loop" tracking of all targets, both fixed and moving. A method to accomplish this is proposed. Methods to reduce the jitter and lower the ambient temperature of the optics via a tethered optical system are proposed.

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