1128 Astrid

Asteroid October 2019 yes 1128 Astrid #D6D6D6 E. Delporte Uccle Obs. 10 March 1929 (1128) Astrid 1929 EB1949 QF 21954 UL 31964 VW1972 LM 1A917 SQA920 JA Astrid of Sweden(Queen consort of the Belgians) Astridian main-belt(middle)Astrid 4 September 2017 (JD 2458000.5) 0 97.07 yr (35,455 days) 2.9171 AU 2.6577 AU 2.7874 AU 0.0465 4.65 yr (1,700 days) 248.28° 0.2118 ms / day 1.0145° 59.420° 234.37° 33.28 9.67 km34.60 km (derived)34.69 2.1 km41.851 0.278 km41.97 0.72 km44.784 0.912 km45.03 10.37 km52.48 0.40 km 10.2 0.1 h10.228 0.002 h10.229 0.0031 h 0.031 0.0040.04 0.020.0462 0.01810.053 0.0020.06 0.030.0644 (derived)0.0770 0.010 SMASS CC 10.588 0.002 (R)10.7010.8010.9010.9311.02 0.35 1128 Astrid, provisional designation 1929 EB, is a carbonaceous Astridian asteroid from the central region of the asteroid belt. It is the parent body of the Astrid family and measures approximately 40 kilometers in diameter. The asteroid was discovered by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle on 10 March 1929, and later named for Astrid of Sweden, Queen consort of the Belgians. Orbit and classification Astrid is the parent body of the Astrid family (515), a smaller asteroid family of nearly 500 carbonaceous members. It is located in the outermost central main-belt, near a prominent Kirkwood gap, that marks the 5:2 orbital resonance with Jupiter, and divides the asteroid belt into a central and outer part.23 Astrid orbits the Sun at a distance of 2.7–2.9 AU once every 4 years and 8 months (1,700 days). Its orbit has an eccentricity of 0.05 and an inclination of 1° with respect to the ecliptic. The asteroid was first identified as A917 SQ at the Simeiz Observatory in September 1917. The body's observation arc begins with its identification as A920 JA at Heidelberg Observatory in May 1920, nearly 9 years prior to its official discovery observation at Uccle. Physical characteristics In the SMASS classification, Astrid is a carbonaceous C-type asteroid, which corresponds to the overall spectral type of the Astrid family. Rotation period In September 2005, a rotational lightcurve of Astrid was obtained from photometric observations by French amateur astronomer René Roy. Lightcurve analysis gave a rotation period of 10.228 hours with a brightness variation of 0.29 magnitude (U=2+). In October 2010, additional lightcurves were obtained at the Palomar Transient Factory in California, as well as by astronomers Eric Barbotin and Raoul Behrend, which gave a concurring period of 10.2 and 10.229 hours with an amplitude of 0.10 and 0.13 magnitude, respectively (U=1/2). Diameter and albedo According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Astrid measures between 33.28 and 52.48 kilometers in diameter and its surface has an albedo between 0.031 and 0.077. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0644 and a diameter of 34.60 kilometers based on an absolute magnitude of 10.9. 1128 Astrid has been observed to occult 2 stars, both events on 24 Jun 2023 UT. Naming This minor planet was named in memory of Astrid of Sweden (1905–1935), Queen consort of the Belgians, who died at the age of 29 in a car accident while on vacation in Switzerland. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 106). References 30em 2017-06-04 last obs. JPL Small-Body Database Browser: 1128 Astrid (1929 EB) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001128 Jet Propulsion Laboratory 1 September 2017 Schmadel Lutz D. Dictionary of Minor Planet Names Springer Berlin Heidelberg 96 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1129 (1128) Astrid 1128 Astrid (1929 EB) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1128 1 September 2017 Asteroids and comets rotation curves – (1128) Astrid Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page3cou.html#001128 1 September 2017 3 December 2002 https://web.archive.org/web/20021203214643/http://obswww.unige.ch/~behrend/page3cou.html#001128 dead 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 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...791..121M The Astrophysical Journal 791 2 11 2014ApJ...791..121M 10.1088/0004-637X/791/2/121 1406.6645 1 September 2017 D. Vokrouhlický M. Broz W. F. Bottke D. Nesvorný A. Morbidelli May 2006 Yarkovsky/YORP chronology of asteroid families https://www.boulder.swri.edu/~davidn/papers/chron.pdf Icarus 182 1 118–142 2006Icar..182..118V 10.1016/j.icarus.2005.12.010 1 September 2017 Asteroid 1128 Astrid – Nesvorny HCM Asteroid Families V3.0 Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1128+Astrid#Asteroid%201128%20AstridEAR-A-VARGBDET-5-NESVORNYFAM-V3.0 26 October 2019 https://web.archive.org/web/20200819130613/https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1128+Astrid#Asteroid%201128%20AstridEAR-A-VARGBDET-5-NESVORNYFAM-V3.0 19 August 2020 dead D. Nesvorný M. Broz V. Carruba December 2014 Identification and Dynamical Properties of Asteroid Families Asteroids IV 297–321 2015aste.book..297N 10.2458/azu_uapress_9780816532131-ch016 1502.01628 9780816532131 1128 1 September 2017 6 Joseph R. Masiero A. K. Mainzer T. Grav J. M. Bauer R. M. Cutri C. Nugent M. S. Cabrera November 2012 Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M The Astrophysical Journal Letters 759 1 5 2012ApJ...759L...8M 10.1088/2041-8205/759/1/L8 1209.5794 1 September 2017 6 C. R. Nugent A. Mainzer J. Masiero J. Bauer R. M. Cutri T. Grav E. Kramer S. Sonnett R. Stevenson E. L. Wright December 2015 NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015ApJ...814..117N The Astrophysical Journal 814 2 13 2015ApJ...814..117N 10.1088/0004-637X/814/2/117 1509.02522 1 September 2017 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 free 6 Fumihiko Usui Daisuke Kuroda Thomas G. Müller Sunao Hasegawa Masateru Ishiguro Takafumi Ootsubo Daisuke Ishihara Hirokazu Kataza Satoshi Takita Shinki Oyabu Munetaka Ueno Hideo Matsuhara Takashi Onaka October 2011 Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey Publications of the Astronomical Society of Japan 63 5 1117–1138 2011PASJ...63.1117U 10.1093/pasj/63.5.1117 free (online, AcuA catalog p. 153) E. F. Tedesco P. V. Noah M. Noah S. D. Price October 2004 IRAS Minor Planet Survey V6.0 https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab NASA Planetary Data System 12 IRAS-A-FPA-3-RDR-IMPS-V6.0 2004PDSS...12.....T 22 October 2019 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 6 Adam Waszczak Chan-Kao Chang Eran O. Ofek Russ Laher Frank Masci David Levitan Jason Surace Yu-Chi Cheng Wing-Huen Ip Daisuke Kinoshita George Helou Thomas A. Prince Shrinivas Kulkarni September 2015 Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015AJ....150...75W The Astronomical Journal 150 3 35 2015AJ....150...75W 10.1088/0004-6256/150/3/75 1504.04041 1 September 2017 6 Peter Veres Robert Jedicke Alan Fitzsimmons Larry Denneau Mikael Granvik Bryce Bolin Serge Chastel Richard J. Wainscoat William S. Burgett Kenneth C. Chambers Heather Flewelling Nick Kaiser Eugen A. Magnier Jeff S. Morgan Paul A. Price John L. Tonry Christopher Waters November 2015 Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V Icarus 261 34–47 2015Icar..261...34V 10.1016/j.icarus.2015.08.007 1506.00762 1 September 2017 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 Asteroids and comets rotation curves, CdR https://web.archive.org/web/20160729213840/http://obswww.unige.ch/~behrend/page_cou.html 29 July 2016 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center (1128) Astrid at AstDyS-2, Asteroids Dynamic Site 1128 1127 Mimi 1128 1129 Neujmina 001128 Category:Discoveries by Eugène Joseph Delporte Category:Named minor planets 001128 19290310