Lightcurve analysis of asteroids 331, 795, 886, 1266, 2023, 3285, and 3431

The lightcurves of seven asteroids obtained from 1999 through 2003 are analyzed. In some cases, the analysis is a revision of previously published values. The following synodic periods and amplitudes were determined. 331 Etheridgea, 6.82 ± 0.01h, 0.05 ± 0.02m; 795 Fini, 8.641 ± 0.002h, 0.05 ± 0.02m; 886 Washingtonia, 9.002 ± 0.005h, 0.12 ± 0.02m; 1266 Tone, 11.82 ± 0.05h, 0.13 ± 0.02m; 2023 Asaph, 4.74 ± 0.01h, 0.06 ± 0.02m; 3285 Ruth Wolfe, 6.72 ± 0.03h, 0.21 ± 0.03m; and 3431 Nakano, 8.90 ± 0.03h, 0.25 ± 0.02m.