3643 Tienchanglin (1978 UN2). JPL Small-Body Database Browser. Jet Propulsion Laboratory, California Institute of Technology. [6 May 2020]. (原始内容存档于2021-07-17).
3643 Tienchanglin (1978 UN2). JPL Small-Body Database Browser. Jet Propulsion Laboratory, California Institute of Technology. [6 May 2020]. (原始内容存档于2021-07-17).