The Harvard Experiment on OSO-6: Instrumentation, Calibration, Operation, and Description of Observations

The Harvard experiment carried by OS 0-6 was an extreme-ultraviolet (EUV) spectrometerspectroheliometer with wavelength range 285-1385 A, spatial and spectral bandwidth 35 x 35 (arc sec)2 and 3 A, respectively; the instrumeflt acquired data that have been deposited with the National Space Science Data Center and World Data Center A at the Goddard Space Flight Center in Greenbelt, Maryland, and are now available in their entirety to the scientific community. This paper describes aspects of the experiment that are relevant to potential users of the data: instrument configuration and parameters, laboratory and inflight calibrations, as well as operational capabilities and procedures. We also report the observations obtained and, where relevant, list the nature, number, and dates of observations. Subject headings: atmospheres, solar - instruments - solar activity - spectra, solar - spectra, ultraviolet