NASA NTRS · 19840019953
Performance testing of the high altitude observatory PDS microdensitometer
Abstract
High Altitude Observatory HAO microdensitometer undergoes monthly testing to assure its consistent performance. These tests check positional and photometric stability at the 10 micron aperture level. The HAO test procedure is designed to run without operator intervention following initial configuration of the microdensitometer for each subprocedure. Specialized test software is resident in the PDP 8. The operator selects the proper subprocedure by entering commands. Once computer control is established, it is not relinquished until the test is complete.
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Poland, A., Munro, R., Friend, D.. 1984-07-01. Performance testing of the high altitude observatory PDS microdensitometer. https://ntrs.nasa.gov/citations/19840019953
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