On-board autonomous target acquisition

Astronomy and Astrophysics – Astronomy

Scientific paper

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Autonomy, Hubble Space Telescope, Spaceborne Astronomy, Spacecraft Instruments, Target Acquisition, Astronomical Spectroscopy, Command And Control, High Resolution, Numerical Control, Searching

Scientific paper

As the data handling tasks required of space-borne astronomical instrumentation grow in size and complexity, more and more autonomy will be required of on-board control and analysis software. One simple method of target acquisition involves using on-board software to construct and downlink map images of areas of the sky as seen by on-board detectors. A more desirable method of target acquisition requires no real-time data or command links to or from the ground, and is carried out completely autonomously by on-board digital image processing and spacecraft pointing software. Such a software package was designed and implemented as part of the Flight Software for the High Resolution Spectrograph (HRS) for the Space Telescope (ST). This paper discusses the generic target acquisition process by using the HRS process as an example.

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