NDLI: Coronagraph observations and analyses of the ultraviolet solar corona

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Coronagraph observations and analyses of the ultraviolet solar corona

Content Provider	NASA Technical Reports Server (NTRS)
Author	Kohl, John L.
Copyright Year	1989
Description	The major activities on the Spartan Ultraviolet Coronal Spectrometer project include both scientific and experimental/technical efforts. In the scientific area, a detailed analysis of the previously reported Doppler dimming of HI Ly-alpha from the July 1982 rocket flight has determined an outflow velocity at 2 solar radii from sun center to be between 153 and 251 km/s at 67 percent confidence. The technical activities include, several improvements made to the instrument that will result in enhanced scientific performance or in regaining a capability that had deteriorated during the delay time in the launch date. These include testing and characterizing the detector for OVI radiation, characterizing a serrated occulter at UV and visible wavelengths, fabricating and testing telescope mirrors with improved edges, testing and evaluating a new array detector system, modifying the slit mask mechanism and installing a mask in the instrument to block the Ly-alpha resonance line when the electron scattered component is being observed.
File Size	868319
Page Count	19
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19890019105
Archival Resource Key	ark:/13960/t6wx2930n
Language	English
Publisher Date	1989-03-01
Access Restriction	Open
Subject Keyword	Solar Physics Solar Spectra Solar Corona Lyman Alpha Radiation Radiation Detectors Ultraviolet Spectra Line Spectra Solar Wind Ultraviolet Astronomy Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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