[2] Schwassmannia is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements.
[1] This minor planet was named after its discoverer, German astronomer Arnold Schwassmann (1870–1964), who discovered four comets and 22 asteroids in total (including this one).
[2] In the Tholen- and SMASS-like taxonomy of the Small Solar System Objects Spectroscopic Survey (S3OS2), Schwassmannia is an S-type and T-type asteroid, respectively.
[8][9] Alternative observations with a lower rated quality by Robert Stephens at the Center for Solar System Studies (U81) in September 2013 gave a period of 120.3±1 hours (U=2).
[12][a] The results supersede an earlier, tentative observation by Italian Federico Manzini at the Sozzago Astronomical Station (A12) from October 2004, with an incorrect period 4.5 hours (U=1).