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There are a total of 4 record(s) matching your query.
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Worldwide photometry and lightcurve observations of 16 Psyche during the 1975-1976 apparition
Author(s): Tedesco, E. F.; Taylor, R. C.; Drummond, J.; Harwood, D.; Nickoloff, I.; Scaltriti, F.; Zappala, V.
Abstract: Twenty-six lightcurves of Psyche are presented together with UBV photometry and phase functions from 1975 and 1976. Combining photometric data from this opposition with those from previous apparitions resulted in a mean ...
NASA Center: Jet Propulsion Laboratory Publication Year: 1983
Added to NTRS: 2004-11-03
Accession Number: 83A32604; Document ID: 19830051386
Texture classification by local rank correlation
Author(s): Harwood, D.; Subbarao, M.; Davis, L. S.
Abstract: A new approach to texture classification based on local rank correlation is proposed here. Its performance is compared with Laws' method which uses local convolution with feature masks. In the experiments, texture samples ...
NASA Center: NASA (non Center Specific) Publication Year: 1985
Added to NTRS: 2004-11-03
Accession Number: 86A42018; Document ID: 19860057280
Worldwide photometry and lightcurve observations of 1 Ceres during the 1975-1976 apparition
Author(s): Tedesco, E. F.; Taylor, R. C.; Drummond, J.; Harwood, D.; Nickoloff, I.; Scaltriti, F.; Zappala, V.; Schober, H. J.
Abstract: Lightcurves and UBV photometry of Ceres from the 1975-1976 apparition are presented. The synodic period is 0.37812 or 0.00004 day, the mean absolute V magnitude is 3.61 or 0.03, and the phase coefficient is 0.040 or - ...
NASA Center: Jet Propulsion Laboratory Publication Year: 1983
Added to NTRS: 2004-11-03
Accession Number: 83A32603; Document ID: 19830051385
Simultaneous X-ray, ultraviolet, optical, and radio observations of the flare star Proxima Centauri
Author(s): Haisch, B. M.; Slee, O. B.; Siegman, B. C.; Nikoloff, I.; Candy, M.; Harwood, D.; Verveer, A.; Quinn, P. J.; Wilson, I.; Linsky, J. L., et al.
Abstract: Results of coordinated program of observations in the X-ray, UV, optical and radio regions of the dM5e flare star Proxima Centauri are presented. Simultaneous observations of the star were obtained on March 6 and March 7, ...
NASA Center: NASA (non Center Specific) Publication Year: 1981
Added to NTRS: 2004-11-03
Accession Number: 81A34896; Document ID: 19810050492; Report Number: PB81-248957
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