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WikiPedia: 4484_Sif https://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&... https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2004484#con... https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2004484#dis... https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2004484#ele... https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2004484#phy... https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2004484&orb... https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2004484;cad... https://www.wikidata.org/wiki/Q154284#P716