2122 Pyatiletka

[2] Pyatiletka orbits the Sun in the inner main-belt at a distance of 2.3–2.5 AU once every 3 years and 9 months (1,360 days).

[3] A fragmentary rotational lightcurve of Pyatiletka was obtained from photometric observations at the Palomar Transient Factory in California in February 2010.

Lightcurve analysis gave a tentative rotation period of 8.899 hours with a brightness variation of 0.10 magnitude (U=1).

[3] This minor planet was named in honor of the five-year plans of the Soviet Union on the occasion of the 50th anniversary of its first adoption.

[2] The official naming citation was published by the Minor Planet Center on 1 April 1980 (M.P.C.