152830 Dinkinesh

Main belt asteroid target of the Lucy mission January 2023 yes 152830 Dinkinesh #D6D6D6 Dinkinesh First Look L'LORRI.png Dinkinesh and its moon Selam imaged by the Lucy spacecraft's L'LORRI camera LINEAR Lincoln Lab ETS 4 November 1999 (152830) Dinkinesh 1999 VD 572004 HJ 782007 CB 63 ' d I N k ᵻ n E S Dənkə näš (Lucy fossil) main-belt(inner) 25 February 2023 (JD 2460000.5) 0 23.06 yr (8,422 days) 15 October 1999 2.437 AU 1.946 AU 2.191 AU 0.1120 3.24 yr (1,185 days) 25.239° 0.3038538 ms / day 2.094° 21.380° 66.711° 1 (Selam) 4 910 x 870 x 716 m 738 m (volume equivalent) 2.1 0.2 8 m3 4.67 11 kg1018 2.22 0.35 g/cm3 3.7387 0.0013 h 178.7 0.5 °1017 0.27 0.25 0.06 SqV–R = 0.455 0.025 17.62 0.04 (V-band)L3 152830 Dinkinesh (provisional designation 1999 VD 57) is a binary main-belt asteroid about 740 m ft off 2 us in diameter. It was discovered by the Lincoln Near-Earth Asteroid Research (LINEAR) survey at Socorro, New Mexico on 4 November 1999. Dinkinesh, the name borrowed from an Ethiopian word for the Lucy fossil, was the first flyby target of NASA's Lucy mission, which approached 425 km mi from the asteroid on 1 November 2023. During the flyby, the Lucy spacecraft discovered that Dinkinesh has a contact-binary natural satellite, named Selam, which is 220 m ft us in diameter. Dinkinesh is the smallest main-belt asteroid explored by spacecraft yet, though some smaller near-Earth asteroids have also been explored. Discovery and observational history Dinkinesh was discovered on 4 November 1999 by the Lincoln Near-Earth Asteroid Research (LINEAR) sky survey at Socorro, New Mexico. The discovery observations were published by the Minor Planet Center (MPC) on 23 November 1999 and the asteroid was given the minor planet provisional designation 1999 VD 57, which describes its discovery year, month, and discovery order within the month. The LINEAR and Spacewatch (Kitt Peak, Arizona) surveys continued observing Dinkinesh until 15 November 1999, after which the asteroid became lost and went unrecognized for years. On 19 April 2004, Spacewatch reobserved Dinkinesh as a seemingly new asteroid, but misattributed these observations to those of another unrelated asteroid, 2004 GZ 43, which was discovered by the same survey on 12 April 2004. Dinkinesh was again reobserved as a seemingly new asteroid on 15 and 17 February 2007 by Palomar Observatory's Near-Earth Asteroid Tracking (NEAT) survey at San Diego County, California, which led the MPC to give Dinkinesh the provisional designation 2007 CB 63 on 25 February 2007. Gareth V. Williams, the associate director of the MPC at the time, recognized that 1999 VD 57 and 2007 CB 63 were the same asteroid and published the linkage on 2 March 2007. The linkage between Dinkinesh's 1999 and 2007 observations enabled the MPC to find additional observations from 2001 to 2007, where the asteroid was previously detected unknowingly. The linkage and additional observations extended Dinkinesh's observation arc to over 7 years and greatly reduced uncertainties in its orbit. This allowed the MPC to give Dinkinesh its permanent minor planet catalog number 152830 on 2 April 2007. Pre-discovery LINEAR observations of Dinkinesh from 15 October 1999 were later identified and published on 19 August 2007, extending the observation arc by another 5 years. On 3 March 2007, the MPC established that Spacewatch's 2004 observations of Dinkinesh were not of 2004 GZ 43, and thus redesignated these observations as 2004 HJ 78. However, the MPC did not recognize that 2004 HJ 78 was Dinkinesh until Gareth Williams made the linkage and published it on 9 February 2009. Name Dinkinesh is the Amharic name for the Lucy fossil, after which NASA's Lucy mission is named. The name means "you are wonderful" in the Amharic language (am ድንቅነሽ). "Dinkʼi" means "wonderful"https://www.indifferentlanguages.com/words/wonderful/amharic How to Say Wonderful in Amharic 29 October 2023 29 October 2023 https://web.archive.org/web/20231029042836/https://www.indifferentlanguages.com/words/wonderful/amharic live and "nesh" means "you are" in feminine form.https://static1.squarespace.com/static/58d6b5f4e3df283d54bf151e/t/5a7125e1e4966be6e6de299b/1517364706102/3+-+Helpful+Amharic+Words+%26+Phrases.pdf Helpful Amharic Words & Phrases 29 October 2023 29 October 2023 https://web.archive.org/web/20231029045439/https://static1.squarespace.com/static/58d6b5f4e3df283d54bf151e/t/5a7125e1e4966be6e6de299b/1517364706102/3+-+Helpful+Amharic+Words+%26+Phrases.pdf live The asteroid was unnamed when it was selected for exploration by the Lucy spacecraft, so the Lucy mission team proposed the name Dinkinesh to the International Astronomical Union's Working Group for Small Bodies Nomenclature (WGSBN), which approved and announced the name on 6 February 2023. Orbit Dinkinesh orbits the Sun in the inner main asteroid belt on an elliptical orbit with an average distance of 2.19 astronomical units (328 e6km e6mi unit comma) and an orbital period of 3.24 years. With an orbital eccentricity of 0.112, Dinkinesh comes as close as 1.95 AU e6km e6mi unit from the Sun at perihelion to as far as 2.44 AU e6km e6mi unit at aphelion. The asteroid's orbit is inclined 2.1° with respect to the plane of the Solar System. Dinkinesh is possibly a member of the Flora family, a group of asteroids that share similar orbital characteristics as the family's parent asteroid 8 Flora.5 Physical characteristics Geology thumb|Shape model of Dinkinesh viewed from six orthogonal directions, with the +z direction representing Dinkinesh's rotational north pole. Geological features on Dinkinesh are formally named after words for 'wonderful,' 'marvelous,' or 'beautiful' in the languages of the world.10 This naming theme was introduced by the International Astronomical Union, which announced the first approved names for Selam's features on 20 December 2024. The surfaces of Dinkinesh and Selam are covered with boulders and craters. The outline of Dinkinesh's shape is not smooth, which suggests that the asteroid is relatively old. Dinkinesh bears an equatorial ridge that has been named Fab Dorsum, which suggests that the asteroid has experienced mass shedding in the past. Dinkinesh's equatorial ridge also has a secondary ridge that branches off it. Dinkinesh's shape resembles the near-Earth asteroids 101955 Bennu and 162173 Ryugu, which are known to have rubble pile interior structures consisting of rocks and dust loosely held by gravity. Because of this similarity, Dinkinesh is thought to likely have a rubble pile structure as well. +Named features on Dinkinesh Feature Center Coordinates Description10 Named after10 Name approved(DateRef) Bella Dorsum 24.40°N, 311.1°W Elliptical ridge with northern and southern arcs Italian word for "beautiful" 2025-12-2016360 Fab Dorsum 0°N Prominent equatorial ridge English word derived from "fabulous" 2025-12-2016359 Indah Fossa -8.52°N, 4.31°W Long, narrow trough that appears to postdate other features Indonesian word for "beautiful" 2025-12-2016362 Sumak Fossa 0.0°N, 354.0°W Large trough Kichwa (Ecuadorian Quechua) word for "beautiful" 2025-12-2016361 Totoka Saxum 2.3°N, 356.9°W Boulder used to define the prime meridian Fijian word for "beautiful" 2025-12-2016358 Surface composition thumb|Visible light spectrum of Dinkinesh (gray) compared to the spectra of S-, Sq-, and Sv-type asteroids (red, orange, and yellow, respectively) Visible light spectroscopy of Dinkinesh by two independent teams of researchers in November–December 2022 showed that it is an S-type asteroid, meaning it is mainly composed of rocky silicates and small amounts of metal.1 Spectral data obtained from the 10-meter Keck I telescope at Mauna Kea, Hawaii indicates that Dinkinesh belongs to the Sq subclass of S-type asteroids because it exhibits the 1 μm olivine and pyroxene spectral absorption band that is characteristically seen in Q-type asteroids.4, 6 On the other hand, spectral data from the 8.1-meter Gemini South telescope at Cerro Pachón, Chile showed that Dinkinesh's spectrum more closely resembles a standard S-type asteroid with a shallower 1 μm band. This difference between the two measured spectra of Dinkinesh may be caused by either observational artifacts or compositional variations across Dinkinesh's surface as it rotates. If the latter possibility is true, then Dinkinesh's varying 1 μm band would indicate that there is space-weathered material that is unevenly distributed across its surface, likely due to impacts and surface topography. Rotation and light curve Dinkinesh rotates every 3.7387 0.0013 h. As Dinkinesh rotates, its brightness from Earth fluctuates due to its non-spherical shape, which can be inferred from the amplitude of the asteroid's rotational light curve. The first photometric observations of Dinkinesh's rotational light curve were attempted with the Teide Observatory's 0.8-m IAC-80 telescope at Tenerife, Spain in November 2022, but it did not observe Dinkinesh long enough to make conclusive findings.4 Longer photometric observations of Dinkinesh were made with the Calar Alto Observatory's 1.23-m telescope at Almería, Spain from November 2022 to February 2023, which observed that Dinkinesh's brightness fluctuates by 0.39 0.02 magnitudes every 52.67 hours.1 Dinkinesh's rotation does not cause this light curve period; rather, it is caused by the tidally locked rotation of Selam, whose elongated shape produces the observed brightness fluctuations. Diameter and albedo Lucy images of Dinkinesh show that it measures approximately 790 m ft across its equator. This is in agreement with the previous diameter estimates from measured absolute magnitude and average S-type asteroid albedo. Reprocessing of archival infrared thermal emission observations by the Wide-field Infrared Survey Explorer (WISE) from March 2010 give a consistent result. Satellite Selam (moon) During its flyby of Dinkinesh, the Lucy spacecraft discovered that the asteroid has a contact binary natural satellite or moon consisting of two conjoined lobes each around 220 m ft in diameter. The moon of Dinkinesh has been named Selam (s @ ' l A: m), after the eponymous fossil remains of a three-year-old Australopithecus afarensis female hominin (the same species as the Lucy fossil) found in Dikika, Ethiopia.5 Together, Dinkinesh and Selam form a binary asteroid system. Dinkinesh is the second binary main-belt asteroid explored by spacecraft, after 243 Ida by Galileo in 1993. The Dinkinesh binary system resembles the 65803 Didymos near-Earth asteroid binary system in size and composition, but differs in location from the Sun, which allows scientists to compare the nature of binary asteroids in different environments. In the weeks prior to the flyby, the Lucy spacecraft found that Dinkinesh's brightness did not vary as predicted, which provided the first hints of Dinkinesh's binary nature. Images of Selam taken after Lucys approach revealed that it is a contact binary with two lobes attached to each other. While contact binary asteroids are common in the Solar System, Selam is the first known example of a contact binary satellite of an asteroid. horizontal 900 Dinkinesh-family-portrait-2.png Ttcam1-deconv-2023305-dinkinesh-ql-cropped-north.gif MVIC Selam.jpg Dinkinesh and Selam imaged in false color by Lucys L'Ralph imager Dinkinesh and Selam imaged in false color by Lucys L'Ralph imager Dinkinesh and Selam imaged by Lucys terminal tracking camera during approach. Selam's apparent motion is primarily due to the changing perspective during Lucys approach. Dinkinesh and Selam imaged by Lucys terminal tracking camera during approach. Selam's apparent motion is primarily due to the changing perspective during Lucys approach. Dinkinesh and Selam imaged six minutes after closest approach, revealing the satellite's contact binary shape Dinkinesh and Selam imaged six minutes after closest approach, revealing the satellite's contact binary shape center Exploration The Lucy spacecraft made a flyby of Dinkinesh from a distance of 425 km mi on 1 November 2023 16:54 UTC. Lucys flyby of Dinkinesh was announced by NASA and the Lucy science team on 25 January 2023, more than one year after Lucy had launched in October 2021. The asteroid was initially overlooked as a potential flyby target because it was too small. It was identified in August 2022 by Raphael Marschall, mission collaborator of the Nice Observatory, who investigated 500,000 asteroids for potential close approaches with the spacecraft. The original trajectory of Lucy took it within 64000 km mi of Dinkinesh, but a series of planned trajectory correction maneuvers from May to September 2023 allowed Lucy to approach much closer. Dinkinesh was Lucys first and smallest asteroid flyby during its mission, and is the smallest main-belt asteroid explored by spacecraft yet. The Dinkinesh flyby served to test Lucys autonomous tracking capabilities before it will apply them to its main science targets, the Jupiter trojans. Lucy took its first images of Dinkinesh on 3–5 September 2023, when the asteroid was 23 e6km e6mi unit away from the spacecraft. The spacecraft continued imaging Dinkinesh from afar to aid its optical navigation over the days before the flyby. Because Dinkinesh is very small, Lucy did not resolve surface detail on Dinkinesh until the day of the flyby. At closest approach, Lucy was moving 4.5 km/s mi/s relative to Dinkinesh and it was expected to take 2 meters/pixel resolution images of the asteroid with the panchromatic L'LORRI imager, 15 m/pixel color images with the L'Ralph imager, and 24 m/pixel near-infrared spectra and thermal measurements with the L'TES spectrometer. After the flyby, Lucys L'LORRI instrument continued observing Dinkinesh for four days to measure the asteroid's light curve. Asteroid (152830) 1999 VD57 Lucy flyby diagram.webp Dinkinesh opnav blink crop Sep 2023.gif 800 Orbit diagram of Lucys flyby of Dinkinesh (1999 VD57) on 1 November 2023 Orbit diagram of Lucys flyby of Dinkinesh (1999 VD57) on 1 November 2023 First images of Dinkinesh (circled) by the Lucy spacecraft in September 2023 First images of Dinkinesh (circled) by the Lucy spacecraft in September 2023 center center left See also 52246 Donaldjohanson, Lucys next flyby target in 2025 List of minor planets and comets visited by spacecraft References 2022-11-05 last obs. JPL Small-Body Database Browser: 152830 Dinkinesh (1999 VD57) https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=2152830 Jet Propulsion Laboratory 25 January 2023 18 November 2022 https://web.archive.org/web/20221118233034/https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=2152830 live (152830) Dinkinesh = 2004 HJ78 = 1999 VD57 = 2007 CB63 https://www.minorplanetcenter.net/db_search/show_object?object_id=152830 Minor Planet Center 25 January 2023 13 March 2023 https://web.archive.org/web/20230313010020/https://www.minorplanetcenter.net/db_search/show_object?object_id=152830 live M. P. S. 7496 https://minorplanetcenter.net/iau/ECS/MPCArchive/1990/MPC_19900608.pdf Minor Planet Circulars Supplement Minor Planet Center 23 November 1999 7496 284 13 September 2023 live https://web.archive.org/web/20230913073229/https://www.minorplanetcenter.net/iau/ECS/MPCArchive/1999/MPS_19991123.pdf 13 September 2023 M. P. S. 105236 https://www.minorplanetcenter.net/iau/ECS/MPCArchive/2004/MPS_20040425.pdf Minor Planet Circulars Supplement Minor Planet Center 25 April 2004 105236 414 13 September 2023 live https://web.archive.org/web/20170828090526/https://www.minorplanetcenter.net/iau/ECS/MPCArchive/2004/MPS_20040425.pdf 28 August 2017 M. P. S. 200485 https://www.minorplanetcenter.net/iau/ECS/MPCArchive/2007/MPS_20070225.pdf Minor Planet Circulars Supplement Minor Planet Center 25 February 2007 200485 253 13 September 2023 live https://web.archive.org/web/20171004165513/http://www.minorplanetcenter.net/iau/ECS/MPCArchive/2007/MPS_20070225.pdf 4 October 2017 MPEC 2007-E01 : DAILY ORBIT UPDATE (2007 MAR. 2 UT) https://minorplanetcenter.net/mpec/K07/K07E01.html Minor Planet Electronic Circulars Minor Planet Center 2 March 2007 13 September 2023 8 November 2023 https://web.archive.org/web/20231108114513/https://minorplanetcenter.net/mpec/K07/K07E01.html live M. P. 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C. 59323 https://www.minorplanetcenter.net/iau/ECS/MPCArchive/2007/MPC_20070402.pdf Minor Planet Circulars Minor Planet Center 2 April 2007 59323 47 13 September 2023 live https://web.archive.org/web/20160814223946/http://www.minorplanetcenter.net/iau/ECS/MPCArchive/2007/MPC_20070402.pdf 14 August 2016 M. P. O. 116514 https://www.minorplanetcenter.net/iau/ECS/MPCArchive/2007/MPO_20070402.pdf Minor Planet Circulars Orbit Supplement Minor Planet Center 2 April 2007 116514 96 13 September 2023 live https://web.archive.org/web/20160914042230/http://www.minorplanetcenter.net/iau/ECS/MPCArchive/2007/MPO_20070402.pdf 14 September 2016 M. P. O. 213622 https://minorplanetcenter.net/iau/ECS/MPCArchive/2007/MPS_20070819.pdf Minor Planet Circulars Supplement Minor Planet Center 19 August 2007 213622 620 13 September 2023 live https://web.archive.org/web/20160914043208/http://www.minorplanetcenter.net/iau/ECS/MPCArchive/2007/MPS_20070819.pdf 14 September 2016 M. P. C. 64979 https://minorplanetcenter.net/iau/ECS/MPCArchive/2009/MPC_20090209.pdf Minor Planet Circulars Minor Planet Center 9 February 2007 64979 9 13 September 2023 live https://web.archive.org/web/20170828093841/http://www.minorplanetcenter.net/iau/ECS/MPCArchive/2009/MPC_20090209.pdf 28 August 2017 Dinkinesh Nomenclature https://planetarynames.wr.usgs.gov/SearchResults?Target=221_Dinkinesh Gazetteer of Planetary Nomenclature United States Geological Survey 2026-01-06 live https://web.archive.org/web/20260107013214/https://planetarynames.wr.usgs.gov/SearchResults?Target=221_Dinkinesh 2026-01-07 NASA's Lucy Team Announces New Asteroid Target https://www.nasa.gov/feature/goddard/2023/nasa-s-lucy-team-announces-new-asteroid-target Jessica Evans NASA 25 January 2023 25 January 2023 25 January 2023 https://web.archive.org/web/20230125170936/https://www.nasa.gov/feature/goddard/2023/nasa-s-lucy-team-announces-new-asteroid-target live NASA adds asteroid flyby to Lucy mission https://spacenews.com/nasa-adds-asteroid-flyby-to-lucy-mission/ Jeff Foust SpaceNews 26 January 2023 26 January 2023 8 November 2023 https://web.archive.org/web/20231108114515/https://spacenews.com/nasa-adds-asteroid-flyby-to-lucy-mission/ live WGSBN Bulletin 3, #2 https://www.wgsbn-iau.org/files/Bulletins/V003/WGSBNBull_V003_002.pdf WGSBN Bulletin International Astronomical Union 3 2 22 6 February 2023 6 February 2023 6 February 2023 https://web.archive.org/web/20230206222431/https://www.wgsbn-iau.org/files/Bulletins/V003/WGSBNBull_V003_002.pdf live Introducing "Dinkinesh" – First Asteroid Target for NASA's Lucy Mission Gets a Name https://scitechdaily.com/introducing-dinkinesh-first-asteroid-target-for-nasas-lucy-mission-gets-a-name/ Katherine Kretke SciTechDaily 1 March 2023 2 March 2023 2 March 2023 https://web.archive.org/web/20230302142642/https://scitechdaily.com/introducing-dinkinesh-first-asteroid-target-for-nasas-lucy-mission-gets-a-name/ live etal J. de León J. Licandro N. Pinilla-Alonso N. Moskovitz T. Kareta M. Popescu Characterisation of the new target of the NASA Lucy mission: asteroid 152830 Dinkinesh (1999 VD57) Astronomy & Astrophysics April 2023 672 A174 4 free 10.1051/0004-6361/202346278 2303.05918 2023A&A...672A.174D Lakshika Palamakumbure Kenichiro Mizohata Kateřina Flanderová David Korda Antti Penttilä Tomáš Kouhout Simulation of Space Weathering on Asteroid Spectra through Hydrogen Ion Irradiation of Meteorites The Planetary Science Journal April 2023 4 4 72 10 free 10.3847/PSJ/acc848 2023PSJ.....4...72P 10138/358328 free J. R. Spencer H. A. Levison S. Marchi J. J. Salmon K. S. Noll I. Solanki C. A. Olkin Planning Close Encounter Science Observations for the Lucy Mission https://www.hou.usra.edu/meetings/acm2023/pdf/2456.pdf Asteroids, Comets, Meteors Conference 2023 Lunar and Planetary Institute 2851 2456 June 2023 12 September 2023 14 September 2023 https://web.archive.org/web/20230914051626/https://www.hou.usra.edu/meetings/acm2023/pdf/2456.pdf live S. Mottola T. Denk S. Marchi R. P. Binzel K. S. Noll J. R. Spencer H. F. Levison Pre-Encounter Characterization of the Lucy Target (152830) Dinkinesh https://www.hou.usra.edu/meetings/acm2023/pdf/2486.pdf Asteroids, Comets, Meteors Conference 2023 Lunar and Planetary Institute 2851 2486 June 2023 23 May 2023 1 July 2023 https://web.archive.org/web/20230701224701/https://www.hou.usra.edu/meetings/acm2023/pdf/2486.pdf live B. T. Bolin K. S. Noll I. Caiazzo C. Fremling R. P. Binzel Keck and Gemini spectral characterization of Lucy mission fly-by target (152830) Dinkinesh Icarus August 2023 400 115562 10.1016/j.icarus.2023.115562 2303.08130 2023Icar..40015562B 257505087 Stefano Mottola Tilmann Denk Simone Marchi Richard P. Binzel Keith S. Noll John R. Spencer Harold F. Levison Characterizing asteroid (152830) Dinkinesh in preparation for the encounter with the NASA Lucy mission: a photometric study Monthly Notices of the Royal Astronomical Society: Letters September 2023 524 1 L1–L4 10.1093/mnrasl/slad066 free 2023MNRAS.524L...1M NASA's Lucy Spacecraft Captures its 1st Images of Asteroid Dinkinesh https://www.nasa.gov/feature/goddard/2023/nasa-s-lucy-spacecraft-captures-its-1st-images-of-asteroid-dinkinesh Katherine Kretke NASA 11 September 2023 12 September 2023 15 September 2023 https://web.archive.org/web/20230915015608/https://www.nasa.gov/feature/goddard/2023/nasa-s-lucy-spacecraft-captures-its-1st-images-of-asteroid-dinkinesh/ live etal Kiana D. McFadden Amy K. Mainzer Joseph R. Masiero James M. Bauer Roc M. Cutri Dar Dahlen Size and Albedo Constraints for (152830) Dinkinesh Using WISE Data Astrophysical Journal Letters November 2023 957 1 L2 6 free 10.3847/2041-8213/acff61 2309.13158 2023ApJ...957L...2M etal J. Spencer H. Levison S. Marchi K. Noll J. Salmon R. Marschall The Lucy Encounter with (152830) Dinkinesh https://submissions.mirasmart.com/DPS55/Itinerary/PresentationDetail.aspx?evdid=825 55th Annual DPS Meeting Joint with EPSC San Antonio, Texas October 2023 55 102.06 2 October 2023 8 November 2023 https://web.archive.org/web/20231108115021/https://submissions.mirasmart.com/DPS55/Itinerary/EventsAAG.aspx live NASA's Lucy Spacecraft Adjusts Course for Asteroid Flyby in November https://blogs.nasa.gov/lucy/2023/05/18/nasas-lucy-spacecraft-adjusts-course-for-asteroid-flyby-in-november/ Erin Morton NASA Blogs NASA 18 May 2023 21 October 2023 28 October 2023 https://web.archive.org/web/20231028052854/https://blogs.nasa.gov/lucy/2023/05/18/nasas-lucy-spacecraft-adjusts-course-for-asteroid-flyby-in-november/ live NASA's Lucy Spacecraft Continues Approach to Asteroid Dinkinesh https://science.nasa.gov/missions/lucy/nasas-lucy-spacecraft-continues-approach-to-asteroid-dinkinesh/ Katherine Kretke NASA 13 October 2023 21 October 2023 19 October 2023 https://web.archive.org/web/20231019052130/https://science.nasa.gov/missions/lucy/nasas-lucy-spacecraft-continues-approach-to-asteroid-dinkinesh/ live NASAs Lucy Spacecraft Hours Away from 1st Asteroid Encounter https://blogs.nasa.gov/lucy/2023/11/01/nasas-lucy-spacecraft-hours-away-from-1st-asteroid-encounter/ Erin Morton NASA Blogs NASA 1 November 2023 1 November 2023 2 November 2023 https://web.archive.org/web/20231102001611/https://blogs.nasa.gov/lucy/2023/11/01/nasas-lucy-spacecraft-hours-away-from-1st-asteroid-encounter/ live NASA's Lucy Spacecraft Discovers 2nd Asteroid During Dinkinesh Flyby https://www.nasa.gov/image-article/nasas-lucy-spacecraft-discovers-2nd-asteroid-during-dinkinesh-flyby/ Katherine Kretke NASA 2 November 2023 2 November 2023 3 November 2023 https://web.archive.org/web/20231103065932/https://www.nasa.gov/image-article/nasas-lucy-spacecraft-discovers-2nd-asteroid-during-dinkinesh-flyby/ live NASA's Lucy Mission Gets an Unexpected Twofer in First Asteroid Encounter https://www.jhuapl.edu/news/news-releases/231102-nasa-lucy-lorri-captures-unexpected-twofer-in-first-asteroid-encounter-dinkinesh Johns Hopkins University Applied Physics Laboratory 2 November 2023 2 November 2023 3 November 2023 https://web.archive.org/web/20231103021239/https://www.jhuapl.edu/news/news-releases/231102-nasa-lucy-lorri-captures-unexpected-twofer-in-first-asteroid-encounter-dinkinesh live Lucy Mission Flies By Asteroid Dinkinesh, Finds a Little Surprise https://skyandtelescope.org/astronomy-news/lucy-mission-flies-by-asteroid-dinkinesh-finds-a-little-surprise/ Emily Lakdawalla Sky & Telescope 3 November 2023 3 November 2023 3 November 2023 https://web.archive.org/web/20231103211054/https://skyandtelescope.org/astronomy-news/lucy-mission-flies-by-asteroid-dinkinesh-finds-a-little-surprise/ live NASA Asteroid Mission Discovers Tiny Surprise Moon with 'Really Bizarre' Shape https://www.scientificamerican.com/article/nasa-asteroid-mission-discovers-tiny-surprise-moon-with-really-bizarre-shape/ Meghan Bartels Scientific American 3 November 2023 3 November 2023 3 November 2023 https://web.archive.org/web/20231103160810/https://www.scientificamerican.com/article/nasa-asteroid-mission-discovers-tiny-surprise-moon-with-really-bizarre-shape/ live NASA's Lucy Surprises Again, Observes 1st-ever Contact Binary Orbiting Asteroid https://science.nasa.gov/missions/lucy/nasas-lucy-surprises-again-observes-1st-ever-contact-binary-orbiting-asteroid/ Katherine Kretke NASA 7 November 2023 7 November 2023 7 November 2023 https://web.archive.org/web/20231107193335/https://science.nasa.gov/missions/lucy/nasas-lucy-surprises-again-observes-1st-ever-contact-binary-orbiting-asteroid/ live WGSBN Bulletin 3, #16 https://www.wgsbn-iau.org/files/Bulletins/V003/WGSBNBull_V003_016.pdf WGSBN Bulletin International Astronomical Union 3 16 12 27 November 2023 27 November 2023 28 November 2023 https://web.archive.org/web/20231128012438/https://www.wgsbn-iau.org/files/Bulletins/V003/WGSBNBull_V003_016.pdf live Merrill Colby Kubas Alexia Meyer Alex Raducan Sabina Age of (152830) Dinkinesh I Selam constrained by secular tidal-BYORP theory Astronomy and Astrophysics April 2024 684 L20 free 10.1051/0004-6361/202449716 2024A&A...684L..20M etal Harold F. Levison Simone Marchi Keith S. Noll A contact binary satellite of the asteroid (152830) Dinkinesh https://pmc.ncbi.nlm.nih.gov/articles/PMC11136651/pdf/41586_2024_Article_7378.pdf 29 May 2024 Nature 629 8014 1015–1020 free 10.1038/s41586-024-07378-0 2406.19337 38811709 11136651 2024Natur.629.1015L etal E. B. Bierhaus S. Marchi S. J. Robbins S. Mottola W. F. Bottke K. Noll The Geology of a Small Main-belt S-class Binary Asteroid System: Dinkinesh and Its Contact Binary Satellite Selam as Observed by the Lucy Mission The Planetary Science Journal December 2025 6 12 299 free 10.3847/PSJ/ae1968 2025PSJ.....6..299B External links https://eyes.nasa.gov/apps/solar-system/#/sc_lucy/events/lucy_dinkinesh_flyby?time=2023-11-01T16:54:45.000+00:00 Flyby of Dinkinesh Simulation NASA's Eyes on the Solar System NASA live https://web.archive.org/web/20231102054350/https://eyes.nasa.gov/apps/solar-system/#/sc_lucy/events/lucy_dinkinesh_flyby?time=2023-11-01T16:54:45.000+00:00 2 November 2023 152830 152830 Astronomy Stars Spaceflight Solar System Category:Main-belt asteroids Category:Discoveries by LINEAR Dinkinesh Category:S-type asteroids 20231101 19991104 Category:Binary asteroids