ASTEROID PHOTOMETRIC CATALOGUE

Introduzione

Introduzione

The first version of the Asteroid Photometric Catalogue contained more than 2200 lightcurves of 357 asteroids (Lagerkvist et al., 1987). This updating of the catalogue adds more than 1200 new lightcurves published during 1986-1987 far 222 asteroids (Table I). Since a large fraction of the physical parameters of the first version have become obsolete we have included new values in Table II.
Table II gives far each asteroid in the catalogue the number, the rotation period, the range of the lightcurve amplitude, the absolute magnitude (H), the slope parameter (G), the diameter (D), V-B, B-V, the albedo (p) and the taxonomic types as defined by Tholen (1988) and Barucci et al. (1987). The data were taken tram Matson (1986), Tedesco (1988), Tholen (1988) and Lagerkvist et al. (1988).

Table 111 gives the observational circumstances and the aspect data as we has references to the original publications. Data both far the observation published 1985-1987 and the data published in the first version of the Catalogue afe included in the table. The aspect data published earlier have been recomputed in arder to eliminate some earlier misprints. The new entries in the catalogue afe marked by asterisks after the asteroid numbers. The number of observing hours and the number of points per hour have not been included this Urne. The column far notes have in- stead been used somewhat more frequently.
The time scale in the figures is in units of hours unless otherwise indicated. A lightcurves far an individuaI asteroid have generaly been ploted on the same scale.