16560 Daitor
{{Use dmy dates|date=June 2018}}
{{Infobox planet
| minorplanet = yes
| name = 16560 Daitor
| background = #C2FFFF
| image =
| image_size =
| caption =
| discoverer = E. W. Elst
| discovery_site = La Silla Obs.
| discovered = 2 November 1991
| mpc_name = (16560) Daitor
| alt_names = {{mp|1991 VZ|5}}{{·}}{{mp|1998 MR|21}}
{{mp|1999 NU|24}}
| adjective = Daitorian
| pronounced = {{IPAc-en|'|d|eɪ|t|ər}} {{respell|DAY|tər}}
| named_after = Daitor
{{small|(Greek mythology)}}
| mp_category = Jupiter trojan
{{nowrap|Trojan{{·}}background}}
| epoch = 23 March 2018 (JD 2458200.5)
| uncertainty = 0
| observation_arc = 62.57 yr (22,854 d)
| aphelion = 5.2615 AU
| perihelion = 4.8504 AU
| semimajor = 5.0560 AU
| eccentricity = 0.0407
| period = 11.37 yr (4,152 d)
| mean_anomaly = 264.80°
| mean_motion = {{Deg2DMS|0.0867|sup=ms}} / day
| inclination = 15.311°
| asc_node = 100.76°
| arg_peri = 157.89°
| jupiter_moid = 0.0606 AU
| tisserand = 2.9290
| mean_diameter = {{val|43.38|3.29|ul=km}}
{{val|43.86|0.40|ul=km}}
{{val|51.42|4.6|ul=km}}
| rotation =
| albedo = {{val|0.0292|0.006}}
{{val|0.041|0.006}}
{{val|0.053|0.008}}
| spectral_type = C {{small|(SDSS-MOC)}}
| abs_magnitude = 10.6
10.7
10.90
}}
16560 Daitor ({{IPAc-en|'|d|eɪ|t|ər}} {{respell|DAY|tər}}; provisional designation {{mp|1991 VZ|5}}) is a large Jupiter trojan from the Trojan camp, approximately {{convert|44|km|mi|abbr=off|sigfig=2|sp=us}} in diameter. It was discovered on 2 November 1991, by Belgian astronomer Eric Elst at the La Silla site of the European Southern Observatory in Chile. The carbonaceous C-type asteroid is one of the largest Jupiter trojans with an unknown rotation period. It was named after the Trojan warrior Daitor from Greek mythology.
Orbit and classification
Daitor is a Jovian asteroid in the so-called Trojan camp, located in the {{L5}} Lagrangian point, 60° behind Jupiter, orbiting in a 1:1 resonance with the Gas Giant {{crossreference|(see Trojans in astronomy)}}.
It is also a non-family asteroid of the Jovian background population. It orbits the Sun at a distance of 4.9–5.3 AU once every 11 years and 4 months (4,152 days; semi-major axis of 5.06 AU). Its orbit has an eccentricity of 0.04 and an inclination of 15° with respect to the ecliptic. The body's observation arc begins with a precovery published by the Digitized Sky Survey and taken at Palomar Observatory in October 1955, more than 36 years prior to its official discovery observation at La Silla.
Naming
This minor planet was named from Greek mythology after the Trojan warrior Daitor (Dai'tor), who was killed by Teucer (Teukros) during the Trojan War.Homer, Iliad, 8. 275 ff The official naming citation was published by the Minor Planet Center on 27 May 2010 ({{small|M.P.C. 70409}}).
Physical characteristics
In the SDSS-based taxonomy, Daitor is a carbonaceous C-type, while most Jupiter trojans are D-type asteroids.
= Rotation period =
As of 2018, no rotational lightcurve of Daitor has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown.
= Diameter and albedo =
According to the survey carried out by the Japanese Akari satellite, the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, and the Infrared Astronomical Satellite IRAS, Daitor measures between 43.38 and 51.42 kilometers in diameter and its surface has an albedo between 0.029 and 0.053. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 40.33 kilometers based on an absolute magnitude of 10.7.
{{Largest Jupiter trojans}}
References
{{reflist|30em|refs=
|type = 2018-05-19 last obs.
|title = JPL Small-Body Database Browser: 16560 Daitor (1991 VZ5)
|url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2016560
|publisher = Jet Propulsion Laboratory
|access-date = 25 June 2018}}
|title = 16560 Daitor (1991 VZ5)
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=16560
|access-date = 25 June 2018}}
|title = List of Jupiter Trojans
|work = Minor Planet Center
|first3 = V. |last3 = Carruba
|date = 1 June 2018
|url = https://www.minorplanetcenter.net/iau/lists/JupiterTrojans.html
|access-date = 25 June 2018}}
|title = MPC/MPO/MPS Archive
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html
|access-date = 25 June 2018}}
|first1 = T. |last1 = Grav
|first2 = A. K. |last2 = Mainzer
|first3 = J. M. |last3 = Bauer
|first4 = J. R. |last4 = Masiero
|first5 = C. R. |last5 = Nugent
|date = November 2012
|title = WISE/NEOWISE Observations of the Jovian Trojan Population: Taxonomy
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759...49G
|journal = The Astrophysical Journal
|volume = 759
|issue = 1
|page = 10
|bibcode = 2012ApJ...759...49G
|doi = 10.1088/0004-637X/759/1/49
|arxiv = 1209.1549
|s2cid = 119101711
|access-date= 25 June 2018}} ([http://vizier.cfa.harvard.edu/viz-bin/VizieR-6?-source=J/ApJ/759/49/table1&MPC=16560 online catalog])
|title = Asteroid (16560) Daitor – Proper Elements
|publisher = AstDyS-2, Asteroids – Dynamic Site
|url = https://newton.spacedys.com/astdys/index.php?n=16560&pc=1.1.6
|access-date= 25 June 2018}}
|title = Asteroid 16560 Daitor
|work = Small Bodies Data Ferret
|url = https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=16560+Daitor
|access-date = 25 June 2018
|archive-date = 25 June 2018
|archive-url = https://web.archive.org/web/20180625213452/https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=16560+Daitor
|url-status = dead
}}
|first1 = J. M. |last1 = Carvano
|first2 = P. H. |last2 = Hasselmann
|first3 = D. |last3 = Lazzaro
|first4 = T. |last4 = Mothé-Diniz
|date = February 2010
|title = SDSS-based taxonomic classification and orbital distribution of main belt asteroids
|url = https://sbnarchive.psi.edu/pds3/non_mission/EAR_A_I0035_5_SDSSTAX_V1_1/data/sdsstax_ast_table.tab
|journal = Astronomy and Astrophysics
|volume = 510
|page = 12
|bibcode = 2010A&A...510A..43C
|doi = 10.1051/0004-6361/200913322
|access-date= 30 October 2019|doi-access= free
}} [https://sbn.psi.edu/pds/resource/sdsstax.html (PDS data set)]
|first1 = E. F. |last1 = Tedesco
|first2 = P. V. |last2 = Noah
|first3 = M. |last3 = Noah
|first4 = S. D. |last4 = Price
|date = October 2004
|title = IRAS Minor Planet Survey V6.0
|url = https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab
|journal = NASA Planetary Data System – IRAS-A-FPA-3-RDR-IMPS-V6.0
|volume = 12
|pages = IRAS-A-FPA-3-RDR-IMPS-V6.0
|bibcode = 2004PDSS...12.....T
|access-date = 25 June 2018}}
|title = LCDB Data for (16560) Daitor
|publisher = Asteroid Lightcurve Database (LCDB)
|url = http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=16560%7CDaitor
|access-date = 25 June 2018}}
|display-authors = 6
|first1 = Fumihiko |last1 = Usui
|first2 = Daisuke |last2 = Kuroda
|first3 = Thomas G. |last3 = Müller
|first4 = Sunao |last4 = Hasegawa
|first5 = Masateru |last5 = Ishiguro
|first6 = Takafumi |last6 = Ootsubo
|first7 = Daisuke |last7 = Ishihara
|first8 = Hirokazu |last8 = Kataza
|first9 = Satoshi |last9 = Takita
|first10 = Shinki |last10 = Oyabu
|first11 = Munetaka |last11 = Ueno
|first12 = Hideo |last12 = Matsuhara
|first13 = Takashi |last13 = Onaka
|date = October 2011
|title = Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey
|journal = Publications of the Astronomical Society of Japan
|volume = 63
|issue = 5
|pages = 1117–1138
|bibcode = 2011PASJ...63.1117U
|doi = 10.1093/pasj/63.5.1117
|doi-access=
}} ([http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-source=J/PASJ/63/1117/acua_v1&Num=16560 online], [https://core.ac.uk/download/pdf/43545172.pdf AcuA catalog p. 153])
}}
External links
- [http://www.minorplanet.info/PHP/lcdbsummaryquery.php Asteroid Lightcurve Database (LCDB)], query form ([http://www.minorplanet.info/lightcurvedatabase.html info] {{Webarchive|url=https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html |date=16 December 2017 }})
- [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
- [https://www.minorplanetcenter.net/iau/lists/NumberedMPs015001.html Discovery Circumstances: Numbered Minor Planets (15001)-(20000)] – Minor Planet Center
- {{AstDys|16560}}
- {{JPL small body}}
{{Minor planets navigator |(16559) 1991 VA3 |number=16560 |16561 Rawls}}
{{Small Solar System bodies}}
{{Authority control}}
{{DEFAULTSORT:Daitor}}