501 Urhixidur

501 Urhixidur is a main-belt asteroid discovered by Wolf in Heidelberg in 1903. Lagerkvist (1992) reported a period of 15 h, which is rated U = 1 in the LCDB. A total of 826 data points were obtained over seven nights using a Johnson-Cousins V filter duringthe period 2012 July 5-24, when the asteroid’s average magnitude was 14.0 and average SNR was 173. The lightcurve shows a period of 13.1743 ± 0.0008 h and amplitude of 0.14 ± 0.01 mag. These findings were published in the Minor Planet Bulletin, Volume 40, Number 1, 2013January - March.