THE STUDY OF ELECTROMAGNETIC TECHNIQUES FOR SPACE NAVIGATION
Abstract
A number of refinements have been made in the spectrographic system following the discovery that experimental results showed discrepancies with those predicted theoretically. These changes involved the making of new templates andA REDUCTION IN THE AMPLITUDE OF MOTION OF THE VIBRATING SLIT. Better agreement was obtained following these changes. Velocity scans taken across the face of the sun show random variations of several hundred meters per second. These figures agree with results obtained by other observers using resolutions comparable to our slit width. Electronic integration, although effective in reducing the amplitude of these random fluctuations, results in a response so sluggish that data taking becomes a very tedious process. Suggestions for improving this noise situation involve changing the optics to permit utilization of the whole sun and possibly an increase in the vibration frequency of the slit. Measurements using the whole sun will be attempted as soon as a stable reference arc source is available. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 15, 1961
- Accession Number
- AD0263562
Entities
People
- D.l. Birx
- R.g. Franklin
Organizations
- Franklin Institute