NASA NTRS · 19690000661
Image position sensor
Abstract
Preliminary design calculations for a proposed fine guidance experiment telescope containing a four-sided pyramidal reflector indicate that 0.01 arc sec pointing, at 0.003 arc sec sensing resolution, could be achieved by viewing a +10.0 magnitude star where the total collected light energy would be applied for fine error detection.
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Rosett, B., Seifert, L. I.. 1969-12-01. Image position sensor. https://ntrs.nasa.gov/citations/19690000661
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