The Mount Wilson solar magnetograph - Scanning and data system

Details The Mount Wilson solar magnetograph - Scanning and data system The Mount Wilson solar magnetograph - Scanning and data system

Jun 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976soph...48..411h&link_type=abstract

Solar Physics, vol. 48, June 1976, p. 411-416.

Physics

13

Magnetic Signatures, Minicomputers, Numerical Control, Solar Instruments, Computer Techniques, Data Acquisition, Solar Observatories

Scientific paper

The paper describes a computer-operated image-scanning and data-collection system for the magnetograph at the Mt. Wilson 150-foot Tower telescope. The system is based on a minicomputer with a 32K word core memory and a generalized interface unit for controlling image motion, a keyboard, and an associated television screen. Operation of the solar image guider and the data-collection assembly is outlined along with the observation and data-reduction procedures. Advantages of the system include the ability to move the image in almost any conceivable fashion, a wide choice of integration times, and increased accuracy in magnetic and Doppler calibrations as well as in setting of the magnetic zero level.

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