4318 Baťa
{{Short description|Main-belt asteroid}}
{{Use dmy dates|date=November 2018}}
{{Infobox planet
| minorplanet = yes
| name = 4318 Baťa
| background = #D6D6D6
| image =
| image_size =
| caption =
| discoverer = Z. Vávrová
| discovery_site = Kleť Obs.
| discovered = 21 February 1980
| mpc_name = (4318) Baťa
| alt_names = {{mp|1980 DE|1}}{{·}}{{mp|1977 TB|3}}
1986 GJ
| pronounced =
| named_after = Tomáš Baťa
{{small|(Czech businessman)}}
| mp_category = {{nowrap|main-belt {{·}}{{small|(outer)}} }}
background
| epoch = 27 April 2019 (JD 2458600.5)
| uncertainty = 0
| observation_arc = 61.48 yr (22,457 d)
| aphelion = 3.5580 AU
| perihelion = 2.8881 AU
| semimajor = 3.2231 AU
| eccentricity = 0.1039
| period = 5.79 yr (2,113 d)
| mean_anomaly = 313.92°
| mean_motion = {{Deg2DMS|0.1703|sup=ms}} / day
| inclination = 9.5410°
| asc_node = 33.144°
| arg_peri = 96.856°
| mean_diameter = {{val|25.79|4.95|ul=km}}
{{val|27.47|8.03|u=km}}
{{val|28.26|1.20|u=km}}
| rotation = {{val|10.571|0.2523|ul=h}}
| albedo = {{val|0.05}}
{{val|0.051}}
{{val|0.055}}
| spectral_type = D {{small|(SDSS-MOC)}}
| abs_magnitude = 11.60
11.70
11.8
11.98
}}
4318 Baťa, provisional designation {{mp|1980 DE|1}}, is a dark background asteroid from the outermost regions of the asteroid belt, approximately {{convert|27|km|mi|abbr=off|sigfig=2|sp=us}} in diameter. It was discovered on 21 February 1980, by astronomer Zdeňka Vávrová at the Kleť Observatory in the Czech Republic. The D-type asteroid has a rotation period of 10.6 hours and is likely elongated in shape. It was named in memory of Czech businessman Tomáš Baťa.
Orbit and classification
Baťa is a non-family asteroid from the main belt's background population. It orbits the Sun in the outermost asteroid belt at a distance of 2.9–3.6 AU once every 5 years and 9 months (2,113 days; semi-major axis of 3.22 AU). Its orbit has an eccentricity of 0.10 and an inclination of 10° with respect to the ecliptic. The body's observation arc begins with a precovery taken at Palomar Observatory in April 1957, almost 23 years prior to its official discovery observation at the Kleť Observatory.
Naming
This minor planet was named in memory of Tomáš Baťa (1876–1932), a world-renowned Czech businessman and founder of the Bata Shoe Organization. The official {{MoMP|4318|naming citation}} was published by the Minor Planet Center on 8 June 1990 ({{small|M.P.C. 16444}}).
Physical characteristics
In the SDSS-based taxonomy, Baťa is a very dark D-type asteroid. This spectral type is typical in the outermost asteroid belt and often found in the Jupiter trojan population.
= Rotation period =
In April 2004, a rotational lightcurve of Baťa was obtained from photometric observations by astronomers at the Palomar Transient Factory in California. Lightcurve analysis gave a rotation period of {{val|10.571|0.2523}} hours with a high brightness amplitude of 0.62 magnitude, indicative of an elongated, non-spherical shape ({{small|U=2}}).
= Diameter and albedo =
According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Baťa measures between 25.79 and 28.26 kilometers in diameter and its surface has an albedo between 0.05 and 0.055. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 21.09 kilometers based on an absolute magnitude of 12.11.
References
{{reflist|30em|refs=
|type = 2018-10-22 last obs.
|title = JPL Small-Body Database Browser: 4318 Bata (1980 DE1)
|url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2004318
|publisher = Jet Propulsion Laboratory
|access-date = 27 November 2018}}
|title = 4318 Bata (1980 DE1)
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=4318
|access-date = 27 November 2018}}
|title = MPC/MPO/MPS Archive
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html
|access-date = 27 November 2018}}
|title = Asteroid 4318 Bata
|work = Small Bodies Data Ferret
|url = https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=4318+Bata
|access-date = 27 November 2018}}
|title = Asteroid (4318) Bata – Proper elements
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|url = https://newton.spacedys.com/astdys/index.php?n=4318&pc=1.1.6
|access-date = 27 November 2018}}
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|access-date= 30 October 2019|doi-access= free
}} [https://sbn.psi.edu/pds/resource/sdsstax.html (PDS data set)]
|title = LCDB Data for (4318) Baťa
|publisher = Asteroid Lightcurve Database (LCDB)
|url = http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=4318%7CBaťa
|access-date = 27 November 2018}}
|display-authors = 6
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|arxiv = 1209.5794
|s2cid = 46350317 }}
|display-authors = 6
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|access-date= 27 November 2018}}
|display-authors = 6
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|date = September 2016
|title = NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos
|journal = The Astronomical Journal
|volume = 152
|issue = 3
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|bibcode = 2016AJ....152...63N
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|arxiv = 1606.08923
|doi-access = free }}
|display-authors = 6
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|first4 = Sunao |last4 = Hasegawa
|first5 = Masateru |last5 = Ishiguro
|first6 = Takafumi |last6 = Ootsubo
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|first8 = Hirokazu |last8 = Kataza
|first9 = Satoshi |last9 = Takita
|first10 = Shinki |last10 = Oyabu
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|display-authors = 6
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|first2 = Chan-Kao |last2 = Chang
|first3 = Eran O. |last3 = Ofek
|first4 = Russ |last4 = Laher
|first5 = Frank |last5 = Masci
|first6 = David |last6 = Levitan
|first7 = Jason |last7 = Surace
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|first9 = Wing-Huen |last9 = Ip
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|date = September 2015
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|s2cid = 8342929 }}
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|s2cid = 53493339 }}
}}
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/NumberedMPs000001.html Discovery Circumstances: Numbered Minor Planets (1)-(5000)] – Minor Planet Center
- {{AstDys|4318}}
- {{JPL small body}}
{{Minor planets navigator |4317 Garibaldi |number=4318 |4319 Jackierobinson}}
{{Small Solar System bodies}}
{{Bata Limited}}
{{Authority control}}
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