17314 Aisakos

Trojan asteroid July 2018 yes 17314 Aisakos #C2FFFF C. J. van HoutenI. van Houten-G.T. Gehrels Palomar Obs. 25 March 1971 (17314) Aisakos 1024 T-11977 RS 91989 RH 3T/1024 T-1 ˈ eɪ s ə k ə s'Aesacus' in Noah Webster (1884) A Practical Dictionary of the English Language, with long vowel retained due to 'ai' spelling Aesacus(Greek mythology) Jupiter trojanTrojanbackground 23 March 2018 (JD 2458200.5) 0 63.26 yr (23,105 d) 5.5517 AU 4.7796 AU 5.1656 AU 0.0747 11.74 yr (4,288 d) 81.097° 0.0839 ms / day 10.724° 353.79° 85.781° 0.1647 AU 2.9600 35.76 0.38 km36.78 km (calculated) 9.67 0.02 hlightcurve-plots-CS3 0.057 (assumed)0.072 0.018 C (assumed) 10.7010.9 17314 Aisakos (ˈ eɪ s ə k ə s; provisional designation 1977 RS 9) is a Jupiter trojan from the Trojan camp, approximately 36 km mi off 2 us in diameter. It was discovered at the Palomar Observatory during the first Palomar–Leiden Trojan survey in 1971. The dark Jovian asteroid has a rotation period of 9.7 hours. It was named after the Trojan prince Aesacus from Greek mythology. Discovery Aisakos was discovered on 25 March 1971, by Dutch astronomer couple Ingrid and Cornelis van Houten at Leiden, on photographic plates taken by Dutch–American astronomer Tom Gehrels at Palomar Observatory in the Palomar Mountain Range, southeast of Los Angeles. The body's observation arc begins with a precovery taken at Palomar in November 1954, more than 16 years prior to its official discovery observation. Palomar–Leiden Trojan survey The survey designation "T-1" stands for the first Palomar–Leiden Trojan survey, named after the fruitful collaboration of the Palomar and Leiden Observatory in the 1960s and 1970s. Gehrels used Palomar's Samuel Oschin telescope (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Ingrid and Cornelis van Houten at Leiden Observatory where astrometry was carried out. The trio are credited with the discovery of several thousand asteroids. Naming This minor planet was named from Greek mythology after the Trojan prince Aesacus (Aisakos), son of King Priam and his first wife Arisbe. As had been his maternal grandfather Merops, he was a seer and foresaw the downfall of Troy, brought upon by Hecuba's future son, Paris. The official naming citation was published by the Minor Planet Center on 9 March 2001 (M.P.C. 42365). Orbit and classification Aisakos is a Jupiter trojan in a 1:1 orbital resonance with Jupiter. It is located in the trailering Trojan camp at the Gas Giant's Lagrangian point, 60° behind its orbit (see Trojans in astronomy). It is also a non-family asteroid in the Jovian background population. It orbits the Sun at a distance of 4.8–5.6 AU once every 11 years and 9 months (4,288 days; semi-major axis of 5.17 AU). Its orbit has an eccentricity of 0.07 and an inclination of 11° with respect to the ecliptic. Physical characteristics Aisakos is an assumed C-type asteroid, while most larger Jupiter trojans are D-types. Rotation period In October 2014, a rotational lightcurve of Aisakos was obtained from photometric observations over three consecutive nights by Robert Stephens at the Center for Solar System Studies in Landers, California. Lightcurve analysis gave a well-defined rotation period of 9.67 0.02 hours with a brightness amplitude of 0.34 magnitude (U=3).lightcurve-plots-CS3 Diameter and albedo According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Aisakos measures 35.76 kilometers in diameter and its surface has an albedo of 0.072, while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 36.78 kilometers based on an absolute magnitude of 10.9. Notes lightcurve-plots-CS3 Lightcurve plots of (17314) Aisakos from Oct 2014 by Robert Stephens at the Center for Solar System Studies U81. Quality code is 3- (lightcurve rating at CS3). Summary figures at the LCDB and CS3. References 30em 2018-02-25 last obs. JPL Small-Body Database Browser: 17314 Aisakos (1024 T-1) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2017314 Jet Propulsion Laboratory 4 July 2018 17314 Aisakos (1024 T-1) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=17314 4 July 2018 List of Jupiter Trojans Minor Planet Center V. Carruba 1 July 2018 https://www.minorplanetcenter.net/iau/lists/JupiterTrojans.html 4 July 2018 Minor Planet Discoverers Minor Planet Center https://www.minorplanetcenter.net/iau/lists/MPDiscsNum.html 2018 4 July 2018 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 4 July 2018 T. Grav A. K. Mainzer J. M. Bauer J. R. Masiero C. R. Nugent November 2012 WISE/NEOWISE Observations of the Jovian Trojan Population: Taxonomy http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759...49G The Astrophysical Journal 759 1 10 2012ApJ...759...49G 10.1088/0004-637X/759/1/49 1209.1549 119101711 4 July 2018 (online catalog) Asteroid (17314) Aisakos – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?n=17314&pc=1.1.6 4 July 2018 17314 4 July 2018 Robert D. Stephens Daniel R. Coley Linda M. French July 2015 Dispatches from the Trojan Camp - Jovian Trojan L5 Asteroids Observed from CS3: 2014 October - 2015 January http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015MPBu...42R.216S The Minor Planet Bulletin 42 3 216–224 1052-8091 2015MPBu...42R.216S 4 July 2018 External links Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html 16 December 2017 ) Dictionary of Minor Planet Names, Google books Discovery Circumstances: Numbered Minor Planets (15001)-(20000) – Minor Planet Center Asteroid 17314 Aisakos https://web.archive.org/web/20180704093148/https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=17314+Aisakos 4 July 2018 at the Small Bodies Data Ferret 17314 17314 017314 Category:Discoveries by Cornelis Johannes van Houten Category:Discoveries by Ingrid van Houten-Groeneveld Category:Discoveries by Tom Gehrels 1024 Category:Named minor planets 19710325