2020CD3. Near Earth Objects – Dynamic Site. Department of Mathematics, University of Pisa, Italy. [2020-02-25]. (原始内容存档于2020-03-20).
2020CD3 Close Approaches. Near Earth Objects – Dynamic Site. Department of Mathematics, University of Pisa, Italy. [2020-03-01]. (原始内容存档于2021-10-21).
2020 CD3 Ephemerides. Near Earth Objects – Dynamic Site (Ephemerides at discovery). Department of Mathematics, University of Pisa, Italy. [2020-02-28]. (原始内容存档于2021-10-21).
2020 CD3 Ephemerides. Near Earth Objects – Dynamic Site (Ephemerides at discovery). Department of Mathematics, University of Pisa, Italy. [2020-02-28]. (原始内容存档于2021-10-21).