NSSDCA ID: 1975-057A-02
Mission Name: OSO 8The experiment was designed to measure solar chromospheric spatial and wavelength structure for the following spectral lines in the 1000-A to 4000-A region -- Lyman-alpha, Lyman-beta, the H and K lines of magnesium II, and the H and K lines of calcium II. The instrument, which was composed of a cassegrain telescope and a grating spectrometer, was capable of operating in two modes -- (1) it could hold a fixed solar location and scan the spectral lines, (2) it could simultaneously fix on three of the six spectral lines and scan a 1-arc-min by 1-arc-min region of the solar disk. The instrument was capable of angular resolutions from 1 by 1 arc s to 1 by 40 arc s and a spectral resolution of 0.02 A (except Lyman beta, 0.06A). Instrument sequencing was controlled by ground command only.
Questions and comments about this experiment can be directed to: Coordinated Request and User Support Office
Name | Role | Original Affiliation | |
---|---|---|---|
Dr. Alfred Vidal-Madjar | Other Investigator | CNRS, Service d'Aeronomie | |
Dr. Philippe M. Lemaire | Other Investigator | CNRS, Laboratoire de Physique Stellar | philippe.lemaire@ias.u-psud.fr |
Dr. Jean-Claude Vial | Other Investigator | CNRS, Service d'Aeronomie | vail@iasu-psud.fr |
Dr. Roger Maurice Bonnet | Principal Investigator | European Space Agency |