Minor Planet Bulletin
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Photometric studies of asteroid 2501 Lohja were made between 2014 June 24 and 25 using the Southeastern Association for Research in Astronomy (SARA) Kitt Peak telescope with Bessell B, V, R and I filters. We obtained a synodic period of 3.81 ± 0.01h, which is consistent with previous values.
Originally published at Minor Planet Bulletin.
Li, Bin; Zhao, Haibin; Lu, Hao; and Han, Xianming, "FOUR COLOR OBSERVATIONS OF 2501 LOHJA" Minor Planet Bulletin / (2015): 190-190.
Available at http://digitalcommons.butler.edu/facsch_papers/740