... A technique allowing automatic representation by a relatively small number of independent parameters based on the principal component analysis of data sequences is presented. ... In recent years the spectrum of observed astronomical data can be characterized as greatly varied. ... In this instance, the problem of initial description and classification of newly-observed data becomes most urgent, especially if there is a lack of preliminary observational material and theoretical expectations. ...

Next: Distributed Information Search and Retrieval . ... Previous: Library & Information Services: an Astronomer's Wishlist . ... Some problems of end-users interaction with librarians are discussed to enhance efficiency of utilization and sharing of the astronomical information. ... Generalizing one's personal experience in astronomical investigations may happen to be very useful from the viewpoint of the methodology of employing and reproducing of the astronomical information. ...

... Polarimetric observations of Eris show a small negative linear polarization without opposition surge in the phase angle range of 0.15 - 0.5 . ... The data obtained suggest possible similarity to the polarimetric and photometric phase curves of Pluto. ... 2007) Pluto (Buratti et al. ... Linear polarization observations vs. phase angle for Eris and Pluto (for references, see text). ... Figure 1 shows the polarimetric observations of Eris in the R band and Pluto in the visible light versus phase angle....

Astronomical Data Analysis Software and Systems VII ASP Conference Series, Vol. ... An Optimal Data Loss Compression Technique for Remote Surface Multiwavelength Mapping Sergei V. Vasilyev Solar­Environmental Research Center, P.O. Box 30, Kharkiv, 310052, Ukraine Abstract. This paper discusses the application of principal component analysis (PCA) to compress multispectral images taking advantage of spectral correlations between the bands. ... 506 Vasilyev Figure 1. ... 1985; Vasilyev 1996). ...