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Dunford, E.

Publications and source records attributed to Dunford, E..

Ground Station support for small scientific satellites

In order to keep the cost of a complete small satellite program low, it is necessary to minimize the cost of the ground station operations and support. This is required not only for the operations and support per se, but also in the development of ground station hardware and the mission associated software. Recent experiences at the Rutherford Appleton Laboratory (RAL) on two international projects, IRAS and AMPTE, have shown that the low cost objectives of operations using smaller national facilities can be achieved. This paper describes the facilities at RAL, and the methods by which low cost support are provided by considering the differing implications of hardware/software system modularity, reliability, and small numbers of dedicated and highly skilled operations staff.

Holdaway, R.↗

Echelle spectra image processing for the International Ultraviolet Explorer

This paper presents the techniques needed to convert the International Ultraviolet Explorer (IUE) high-resolution echelle spectra into useful scientific data. The image is obtained with a digitally controlled vidicon camera system. The processes that must be carried out on the image include: noise removal, correction for geometric and optical distortion, nonuniform photometric corrections, and two-dimensional wavelength determination. Results from the breadboard camera system are presented.

Klinglesmith, D. A.↗