{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T20:47:30Z","timestamp":1777582050182,"version":"3.51.4"},"reference-count":0,"publisher":"Oxford University Press (OUP)","license":[{"start":{"date-parts":[[2025,3,5]],"date-time":"2025-03-05T00:00:00Z","timestamp":1741132800000},"content-version":"am","delay-in-days":1,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Contact binaries are found throughout the solar system. The recent discovery of Selam, the satellite of MBA (152830) Dinkinesh, by the NASA LUCY mission has made it clear that the term \u2018contact binary\u2019 covers a variety of different types of bi-modal mass distributions and formation mechanisms. Only by modelling more contact binaries can this population be properly understood. We determined a spin state and shape model for the Apollo group contact binary asteroid (388188) 2006 DP14using ground-based optical and radar observations collected between 2014 and 2023. Radar delay-Doppler images and continuous wave spectra were collected over two days in February 2014, while 16 lightcurves in the Cousins R and SDSS-r filters were collected in 2014, 2022 and 2023. We modelled the spin state using convex inversion before using the SHAPE modelling software to include the radar observations in modelling concavities and the distinctive neck structure connecting the two lobes. We find a spin state with a period of (5.7860 \u00b1 0.0001) hours and pole solution of \u03bb = (180 \u00b1 121)\u25cb and \u03b2 = ( \u2212 80 \u00b1 7)\u25cb with morphology indicating a 520\u00a0m long bi-lobed shape. The model\u2019s asymmetrical bi-modal mass distribution resembles other small NEA contact binaries such as (85990) 1999 JV6or (8567) 1996 HW1, which also feature a smaller \u2018head\u2019 attached to a larger \u2018body\u2019. The final model features a crater on the larger lobe, similar to several other modelled contact binaries. The model\u2019s resolution is 25\u00a0m, comparable to that of the radar images used.<\/jats:p>","DOI":"10.1093\/mnras\/staf371","type":"journal-article","created":{"date-parts":[[2025,3,5]],"date-time":"2025-03-05T02:31:31Z","timestamp":1741141891000},"source":"Crossref","is-referenced-by-count":2,"title":["Shape and spin state model of contact binary (388188) 2006 DP14using combined radar and optical observations"],"prefix":"10.1093","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-5946-8731","authenticated-orcid":false,"given":"Richard E","family":"Cannon","sequence":"first","affiliation":[{"name":"Institute for Astronomy, University of Edinburgh , Royal Observatory, Edinburgh, EH9 3HJ ,","place":["UK"]}]},{"given":"Agata","family":"Ro\u017cek","sequence":"additional","affiliation":[{"name":"Institute for Astronomy, University of Edinburgh , Royal Observatory, Edinburgh, EH9 3HJ ,","place":["UK"]}]},{"given":"Marina","family":"Brozovi\u0107","sequence":"additional","affiliation":[{"name":"Jet Propulsion Laboratory, California Institute of Technology , Pasadena, CA 91109 ,","place":["USA"]}]},{"given":"Petr","family":"Pravec","sequence":"additional","affiliation":[{"name":"Astronomical Institute of the Czech Academy of Sciences , Fri\u010dova 298, CZ-25165 Ond\u0159ejov ,","place":["Czech Republic"]}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9328-2905","authenticated-orcid":false,"given":"Colin","family":"Snodgrass","sequence":"additional","affiliation":[{"name":"Institute for Astronomy, University of Edinburgh , Royal Observatory, Edinburgh, EH9 3HJ ,","place":["UK"]}]},{"given":"Michael W","family":"Busch","sequence":"additional","affiliation":[{"name":"SETI Institute , Mountain View CA 94043 ,","place":["USA"]}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2121-6375","authenticated-orcid":false,"given":"James E","family":"Robinson","sequence":"additional","affiliation":[{"name":"Institute for Astronomy, University of Edinburgh , Royal Observatory, Edinburgh, EH9 3HJ ,","place":["UK"]}]},{"given":"Abbie","family":"Donaldson","sequence":"additional","affiliation":[{"name":"Institute for Astronomy, University of Edinburgh , Royal Observatory, Edinburgh, EH9 3HJ ,","place":["UK"]}]},{"given":"Tanja","family":"Holc","sequence":"additional","affiliation":[{"name":"Institute for Astronomy, University of Edinburgh , Royal Observatory, Edinburgh, EH9 3HJ ,","place":["UK"]}]},{"given":"Lance A M","family":"Benner","sequence":"additional","affiliation":[{"name":"Jet Propulsion Laboratory, California Institute of Technology , Pasadena, CA 91109 ,","place":["USA"]}]},{"given":"Shantanu","family":"Naidu","sequence":"additional","affiliation":[{"name":"Jet Propulsion Laboratory, California Institute of Technology , Pasadena, CA 91109 ,","place":["USA"]}]},{"given":"Peter","family":"Ku\u0161nir\u00e1k","sequence":"additional","affiliation":[{"name":"Astronomical Institute of the Czech Academy of Sciences , Fri\u010dova 298, CZ-25165 Ond\u0159ejov ,","place":["Czech Republic"]}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9925-0426","authenticated-orcid":false,"given":"Daniel","family":"Gardener","sequence":"additional","affiliation":[{"name":"Institute for Astronomy, University of Edinburgh , Royal Observatory, Edinburgh, EH9 3HJ ,","place":["UK"]}]},{"given":"Hana","family":"Ku\u010d\u00e1kov\u00e1","sequence":"additional","affiliation":[{"name":"Astronomical Institute of the Czech Academy of Sciences , Fri\u010dova 298, CZ-25165 Ond\u0159ejov ,","place":["Czech Republic"]},{"name":"Astronomical Institute, Faculty of Mathematics and Physics, Charles University Prague , V Hole\u0161ovi\u010dk\u00e1ch 2, CZ-180 00 Praha 8 ,","place":["Czech Republic"]},{"name":"Research Centre for Theoretical Physics and Astrophysics, Institute of Physics, Silesian University in Opava , Bezru\u010dovo n\u00e1m. 13, CZ-746 01 Opava ,","place":["Czech Republic"]}]},{"given":"Elahe","family":"Khalouei","sequence":"additional","affiliation":[{"name":"Seoul National University , Gwanak-gu, Seoul ,","place":["South Korea"]}]},{"given":"Joseph","family":"Pollock","sequence":"additional","affiliation":[{"name":"Physics and Astronomy Department, Appalachian State University , Boone, NC 28608 ,","place":["USA"]}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7520-8389","authenticated-orcid":false,"given":"Mariangela","family":"Bonavita","sequence":"additional","affiliation":[{"name":"Institute for Astronomy, University of Edinburgh , Royal Observatory, Edinburgh, EH9 3HJ ,","place":["UK"]}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1127-9302","authenticated-orcid":false,"given":"Petr","family":"Fatka","sequence":"additional","affiliation":[{"name":"Astronomical Institute of the Czech Academy of Sciences , Fri\u010dova 298, CZ-25165 Ond\u0159ejov ,","place":["Czech Republic"]}]},{"given":"Kamil","family":"Hornoch","sequence":"additional","affiliation":[{"name":"Astronomical Institute of the Czech Academy of Sciences , Fri\u010dova 298, CZ-25165 Ond\u0159ejov ,","place":["Czech Republic"]}]},{"given":"Sedighe","family":"Sajadian","sequence":"additional","affiliation":[{"name":"Perimeter Institute for Theoretical Physics , Waterloo, ON N2L 2Y5 ,","place":["Canada"]}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0986-9143","authenticated-orcid":false,"given":"Lara","family":"Alegre","sequence":"additional","affiliation":[{"name":"Institute for Astronomy, University of Edinburgh , Royal Observatory, Edinburgh, EH9 3HJ ,","place":["UK"]},{"name":"Centre for Astrophysics Research, Department of Physics, Astronomy and Mathematics, University of Hertfordshire , College Lane, Hatfield AL10 9AB ,","place":["UK"]}]},{"given":"Flavia","family":"Amadio","sequence":"additional","affiliation":[{"name":"Niels Bohr Institute , Jagtvej 155A, 2200 Copenhagen N ,","place":["Denmark"]}]},{"given":"Michael I","family":"Andersen","sequence":"additional","affiliation":[{"name":"Niels Bohr Institute , Jagtvej 155A, 2200 Copenhagen N ,","place":["Denmark"]}]},{"given":"Valerio","family":"Bozza","sequence":"additional","affiliation":[{"name":"Alma Mater Studiorum - University of Bologna , Dipartimento di Fisica e Astronomia \u2018Augusto Righi\u2019, Via Gobetti 93\/2, 40129 Bologna ,","place":["Italy"]},{"name":"Istituto Nazionale di Fisica Nucleare , Sezione di Napoli, Napoli ,","place":["Italy"]}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5854-4217","authenticated-orcid":false,"given":"Martin J","family":"Burgdorf","sequence":"additional","affiliation":[{"name":"Universit\u00e4t Hamburg, Faculty of Mathematics, Informatics and Natural Sciences, Department of Earth Sciences, Meteorological Institute , Bundesstra\u00dfe 55, 20146 Hamburg ,","place":["Germany"]}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-2173-7914","authenticated-orcid":false,"given":"Gabriele","family":"Columba","sequence":"additional","affiliation":[{"name":"Alma Mater Studiorum - University of Bologna , Dipartimento di Fisica e Astronomia \u2018Augusto Righi\u2019, Via Gobetti 93\/2, 40129 Bologna ,","place":["Italy"]}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3202-0343","authenticated-orcid":false,"given":"Martin","family":"Dominik","sequence":"additional","affiliation":[{"name":"Centre for Exoplanet Science, SUPA, School of Physics & Astronomy, University of St Andrews , North Haugh, St Andrews KY16 9SS ,","place":["UK"]}]},{"given":"R Figuera","family":"Jaimes","sequence":"additional","affiliation":[{"name":"Centre for Exoplanet Science, SUPA, School of Physics & Astronomy, University of St Andrews , North Haugh, St Andrews KY16 9SS ,","place":["UK"]},{"name":"Millennium Institute of Astrophysics MAS , Nuncio Monsenor Sotero Sanz 100, Of. 104, Providencia, Santiago ,","place":["Chile"]},{"name":"Instituto de Astrof\u00edsica, Facultad de F\u00edsica, Pontificia Universidad Cat\u00f3lica de Chile , Av. Vicu\u00f1a Mackenna 4860, 7820436, Macul, Santiago ,","place":["Chile"]}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8870-3146","authenticated-orcid":false,"given":"Tobias C","family":"Hinse","sequence":"additional","affiliation":[{"name":"University of Southern Denmark, Department of Physics, Chemistry and Pharmacy , SDU-Galaxy, Campusvej 55, 5230, Odense M ,","place":["Denmark"]}]},{"given":"Markus","family":"Hundertmark","sequence":"additional","affiliation":[{"name":"Astronomisches Rechen-Institut, Zentrum f\u00fcr Astronomie der Universit\u00e4t Heidelberg (ZAH) , 69120 Heidelberg ,","place":["Germany"]}]},{"given":"Uffe G","family":"J\u00f8rgensen","sequence":"additional","affiliation":[{"name":"Centro de Astronom\u00eda, Universidad de Antofagasta , Av. Angamos 601, Antofagasta ,","place":["Chile"]}]},{"given":"Penelope","family":"Longa-Pe\u00f1a","sequence":"additional","affiliation":[{"name":"Instituto de Astrof\u00edsica e Ci\u00eancias do Espa\u00e7o, Departamento de F\u00edsica, Universidade de Coimbra , 3040-004, Coimbra ,","place":["Portugal"]}]},{"given":"Nuno","family":"Peixinho","sequence":"additional","affiliation":[{"name":"Instituto de Astrof\u00edsica e Ci\u00eancias do Espa\u00e7o, Departamento de F\u00edsica, Universidade de Coimbra , 3040-004, Coimbra ,","place":["Portugal"]}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2935-7196","authenticated-orcid":false,"given":"Markus","family":"Rabus","sequence":"additional","affiliation":[{"name":"Departamento de Matem\u00e1tica y F\u00edsica Aplicadas, Facultad de Ingenier\u00eda, Universidad Cat\u00f3lica de la Sant\u00edsima Concepci\u00f3n , Alonso de Rivera 2850, Concepci\u00f3n ,","place":["Chile"]}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7084-5725","authenticated-orcid":false,"given":"Sohrab","family":"Rahvar","sequence":"additional","affiliation":[{"name":"Perimeter Institute for Theoretical Physics , Waterloo, ON N2L 2Y5 ,","place":["Canada"]}]},{"given":"Paolo","family":"Rota","sequence":"additional","affiliation":[{"name":"Alma Mater Studiorum - University of Bologna , Dipartimento di Fisica e Astronomia \u2018Augusto Righi\u2019, Via Gobetti 93\/2, 40129 Bologna ,","place":["Italy"]},{"name":"Istituto Nazionale di Fisica Nucleare , Sezione di Napoli, Napoli ,","place":["Italy"]}]},{"given":"Jesper","family":"Skottfelt","sequence":"additional","affiliation":[{"name":"Centre for Electronic Imaging, Department of Physical Sciences, The Open University, Milton Keynes , MK7 6AA ,","place":["UK"]}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3807-3198","authenticated-orcid":false,"given":"John","family":"Southworth","sequence":"additional","affiliation":[{"name":"Astrophysics Group, Keele University , Staffordshire, ST5 5BG ,","place":["UK"]}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9024-4185","authenticated-orcid":false,"given":"Jeremy","family":"Tregloan-Reed","sequence":"additional","affiliation":[{"name":"Instituto de Astronomia y Ciencias Planetarias, Universidad de Atacama , Copayapu 485, Copiapo ,","place":["Chile"]}]}],"member":"286","published-online":{"date-parts":[[2025,3,4]]},"container-title":["Monthly Notices of the Royal Astronomical Society"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/academic.oup.com\/mnras\/advance-article-pdf\/doi\/10.1093\/mnras\/staf371\/62267398\/staf371.pdf","content-type":"application\/pdf","content-version":"am","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/mnras\/advance-article-pdf\/doi\/10.1093\/mnras\/staf371\/62267398\/staf371.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,3,5]],"date-time":"2025-03-05T02:31:32Z","timestamp":1741141892000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/mnras\/advance-article\/doi\/10.1093\/mnras\/staf371\/8052012"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,3,4]]},"references-count":0,"URL":"https:\/\/doi.org\/10.1093\/mnras\/staf371","relation":{},"ISSN":["0035-8711","1365-2966"],"issn-type":[{"value":"0035-8711","type":"print"},{"value":"1365-2966","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,3,4]]},"article-number":"staf371"}}