Precovery Observations Confirm the Capture Time of Asteroid 2020 CD3 as Earth's Minimoon Item Type Article; text Authors Naidu, S.P.; Micheli, M.; Farnocchia, D.; Roa, J.; Fedorets, G.; Christensen, E.; Weryk, R. Citation Naidu, S. P., Micheli, M., Farnocchia, D., Roa, J., Fedorets, G., Christensen, E., & Weryk, R. (2021). Precovery Observations Confirm the Capture Time of Asteroid 2020 CD3 as Earth’s Minimoon. Astrophysical Journal Letters, 913(1). DOI 10.3847/2041-8213/abf836 Publisher American Astronomical Society Journal Astrophysical Journal Letters Rights Copyright © 2021. The American Astronomical Society. All rights reserved. Download date 27/09/2021 10:25:25 Item License http://rightsstatements.org/vocab/InC/1.0/ Version Final published version Link to Item http://hdl.handle.net/10150/660909 The Astrophysical Journal Letters, 913:L6 (5pp), 2021 May 20 https://doi.org/10.3847/2041-8213/abf836 © 2021. The American Astronomical Society. All rights reserved. Precovery Observations Confirm the Capture Time of Asteroid 2020 CD3 as Earth’s Minimoon Shantanu P. Naidu1 , Marco Micheli2 , Davide Farnocchia1 , Javier Roa1 , Grigori Fedorets3 , Eric Christensen4, and Robert Weryk5 1 Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, 91109, USA;
[email protected] 2 ESA NEO Coordination Centre, Largo Galileo Galilei, 1, I-00044 Frascati (RM), Italy 3 Astrophysics Research Centre, School of Mathematics and Physics, Queen’s University Belfast, Belfast BT7 1NN, UK 4 The University of Arizona, Lunar and Planetary Laboratory, 1629 E. University Boulevard,Tucson, AZ 85721, USA 5 University of Hawai‘i, Institute for Astronomy, 2680 Woodlawn Drive, Honolulu, Hawai‘i, 96822, USA Received 2021 February 25; revised 2021 March 31; accepted 2021 March 31; published 2021 May 18 Abstract Asteroid 2020 CD3 was discovered on 2020 February 15 by the Catalina Sky Survey while it was temporarily captured in a geocentric orbit before escaping Earth’s Hill sphere on 2020 March 7.