1707 Chantal

Stony background asteroid from the Florian region in the inner asteroid belt December 2018 yes 1707 Chantal #D6D6D6 E. Delporte Uccle Obs. 8 September 1932 (1707) Chantal 1932 RL1942 TC1950 BF 11955 QA 1A906 YJ Niece of astronomer Georges Roland main-belt(inner)background 27 April 2019 (JD 2458600.5) 0 111.83 yr (40,847 d) 2.5989 AU 1.8390 AU 2.2189 AU 0.1712 3.31 yr (1,207 d) 37.923° 0.2982 ms / day 4.0315° 6.1128° 42.974° 7.459 0.114 km7.578 0.291 km7.62 1.37 km 10 h (at least) 0.280.29690.306 Tholen SB–V 0.870U–B 0.530 12.5412.79 1707 Chantal, provisional designation 1932 RL, is a stony background asteroid from the Florian region in the inner asteroid belt, approximately 7.5 km mi off 2 us in diameter. It was discovered on 8 September 1932, by astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. The S-type asteroid has a rotation period of at least 10 hours. It was named for Chantal, the niece of Belgian astronomer Georges Roland. Orbit and classification According to modern HCM-analyses by Nesvorný, as well as by Milani and Knežević, Chantal is a non-family asteroid from the main belt's background population. In an older HCM-analysis (Zappalà (1990–97), it is a member of the Flora family (402), a giant asteroid family and the largest family of stony asteroids in the main-belt. It orbits the Sun in the inner asteroid belt at a distance of 1.8–2.6 AU once every 3 years and 4 months (1,207 days; semi-major axis of 2.22 AU). Its orbit has an eccentricity of 0.17 and an inclination of 4° with respect to the ecliptic. The asteroid was first observed as A906 YJ at the Heidelberg Observatory in December 1906. The body's observation arc begins at Uccle Observatory in October 1932, or seven weeks after its official discovery observation. Naming This minor planet was named by the discoverer Eugène Delporte after Chantal, a niece of Belgian astronomer Georges Roland (1922–1991) of Uccle and co-discoverer of the Comet Arend–Roland. The official naming citation was published by the Minor Planet Center on 8 April 1982 (M.P.C. 6832). Asteroid 1711 Sandrine was also named by the discoverer after a (grand)-niece of Roland. Physical characteristics In the Tholen classification, Chantal is a common, stony S-type asteroid. Rotation period In October 1975, a rotational lightcurve of Chantal was obtained from photometric observations by Swedish astronomer Claes-Ingvar Lagerkvist at the Uppsala Astronomical Observatory. Analysis of the fragmentary lightcurve gave a rotation period of at least 10 hours with a brightness amplitude of more than 0.2 magnitude (U=1). Diameter and albedo According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Chantal measures between 7.46 and 7.62 kilometers in diameter and its surface has an albedo between 0.28 and 0.31. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a stony asteroid of 0.20 and calculates a diameter of 9.23 kilometers based on an absolute magnitude of 12.54. References 30em 2018-10-22 last obs. JPL Small-Body Database Browser: 1707 Chantal (1932 RL) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001707 Jet Propulsion Laboratory 10 December 2018 1707 Chantal (1932 RL) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1707 10 December 2018 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 10 December 2018 6 Joseph R. Masiero T. Grav A. K. Mainzer C. R. Nugent J. M. Bauer R. Stevenson S. Sonnett August 2014 Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos The Astrophysical Journal 791 2 11 2014ApJ...791..121M 10.1088/0004-637X/791/2/121 1406.6645 119293330 Asteroid (1707) Chantal – Proper elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?n=1707&pc=1.1.6 10 December 2018 Asteroid 1707 Chantal Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1707+Chantal 10 December 2018 October 2026 InternetArchiveBot 1707 10 December 2018 6 A. K. Mainzer J. M. Bauer R. M. Cutri T. Grav E. A. Kramer J. R. Masiero C. R. Nugent S. M. Sonnett R. A. Stevenson E. L. Wright June 2016 NEOWISE Diameters and Albedos V1.0 https://sbnarchive.psi.edu/pds3/non_mission/EAR_A_COMPIL_5_NEOWISEDIAM_V1_0/data/neowise_mainbelt.tab NASA Planetary Data System EAR-A-COMPIL-5-NEOWISEDIAM-V1.0 2016PDSS..247.....M 10 December 2018 6 C. R. Nugent A. Mainzer J. Bauer R. M. Cutri E. A. Kramer T. Grav J. Masiero S. Sonnett E. L. Wright September 2016 NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos The Astronomical Journal 152 3 12 2016AJ....152...63N 10.3847/0004-6256/152/3/63 1606.08923 119289027 free 6 A. Mainzer T. Grav J. Masiero E. Hand J. Bauer D. Tholen R. S. McMillan T. Spahr R. M. Cutri E. Wright J. Watkins W. Mo C. Maleszewski November 2011 NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results The Astrophysical Journal 741 2 25 2011ApJ...741...90M 10.1088/0004-637X/741/2/90 1109.6407 118700974 (catalog) Lagerkvist, C.-I. March 1978 Photographic photometry of 110 main-belt asteroids Astronomy and Astrophysics Supplement Series 31 361–381 1978A&AS...31..361L 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 (1)-(5000) – Minor Planet Center 1707 1706 Dieckvoss 1707 1708 Pólit 001707 Category:Discoveries by Eugène Joseph Delporte Category:Named minor planets 001707 19320908