Lightcurve results for 1549 Mikko. Derived period 3.456 ± 0.001 hours. Amplitude of 0.35 ± 0.05 magnitude.
1549 Mikko is a main belt asteroid with an estimated diameter of about 15 km. It was discovered on April 2, 1937 by Y. Vaisala at Turku. The semi-major axis is 2.19 AU, the eccentricity is 0.083 and the inclination is 5.55 degrees.
I observed this asteroid on four nights in December 2002 and January 2003. The resulting data was very noisy and difficult to interpret. The single-minimum period of about 3.456 hours was obtained, but attempts at a double peak lightcurve were not very successful as can be seen in the second graph below. Clearly this asteroid requires much more work.
