Lightcurve results for Asteroid 2957 Tatsuo.
Derived period 7.32 +/- 0.01 hours. Amplitude 0.35 +/- 0.1 magnitude.
Asteroid 2957 Tatsuo is a main belt asteroid that was discovered on February 5, 1934 by K. Reinmuth at Heidelberg. The semi-major axis is 2.89 AU and the eccentricity is 0.092 and the inclination is 8.71 degrees.
I observed this asteroid on 3 nights during June 2004. A period of 7.32 hours was derived however this result is very uncertain as the data was very noisy and the lightcurve incomplete.