(369623) 2011 DY5

Last updated

(369623) 2011 DY5
Discovery [1]
Discovered by C. Demeautis
Jean-Marie Lopez
Discovery site Pises Obs.
Discovery date30 August 2008
Designations
(369623) 2011 DY5
2011 DY5 ·2008 QZ41
main-belt  ·(outer)
Tirela [2]
Orbital characteristics [1]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc 8.67 yr (3,168 d)
Aphelion 3.6022 AU
Perihelion 2.6289 AU
3.1155 AU
Eccentricity 0.1562
5.50 yr (2,009 d)
108.05°
0° 10m 45.12s / day
Inclination 17.608°
168.34°
340.61°
Physical characteristics
Mean diameter
3.2  km (est. at 0.07) [3]
16.0 [1]  ·16.1 [4]

    (369623) 2011 DY5, provisional designation 2011 DY5, is a Tirela asteroid from the outer regions of the asteroid belt, approximately 3.2 kilometers (2.0 miles) in diameter. It was discovered on 30 August 2008, by French amateur astronomers Christophe Demeautis and Jean-Marie Lopez at the Pises Observatory in southern France. [4]

    Contents

    Orbit and classification

    2011 DY5 is a member of the Tirela family, [2] a large asteroid family, also known as the Klumpkea family, named after the largest members 1040 Klumpkea and 1400 Tirela. The family consists of more than a thousand members and may be further divided into 8 different parts. [5] :23

    It orbits the Sun in the outer asteroid belt at a distance of 2.6–3.6  AU once every 5 years and 6 months (2,009 days; semi-major axis of 3.12 AU). Its orbit has an eccentricity of 0.16 and an inclination of 18° with respect to the ecliptic. [1] The body's observation arc begins with its official discovery observation as 2008 QZ41 at Pises in August 2008. [4]

    Physical characteristics

    Based on a generic magnitude-to-diameter conversion, 2011 DY5 measures 3.2 kilometers in diameter for an absolute magnitude of 16.0 and an assumed albedo of 0.07, [3] which is a typical value for a Tirela asteroid. [5] :23 As of 2018, no rotational lightcurve has been obtained from photometric observations. The asteroid's rotation period, poles and shape remain unknown. [1]

    Numbering and naming

    This minor planet was numbered by the Minor Planet Center on 21 August 2013 ( M.P.C. 84643). [6] As of 2018, it has not been named. [4]

    Related Research Articles

    <span class="mw-page-title-main">1040 Klumpkea</span>

    1040 Klumpkea, provisional designation 1925 BD, is a Tirela asteroid from the outer regions of the asteroid belt, approximately 23 kilometers in diameter. It was discovered on 20 January 1925, by Russian–French astronomer Benjamin Jekhowsky at the Algiers Observatory in North Africa. This highly elongated asteroid is the largest member of the stony Tirela family – also known as the Klumpkea family – and has a longer than average rotation period of 59.2 hours. It was named after American astronomer Dorothea Klumpke.

    31192 Aigoual, provisional designation 1997 YH16, is a Xizang asteroid from the central region of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 29 December 1997, by staff members of the Pises Observatory in southern France. The asteroid was named after Mont Aigoual in France.

    3268 De Sanctis, provisional designation 1981 DD, is a Vestian asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 26 February 1981, by European astronomers Henri Debehogne and Giovanni de Sanctis at ESO's La Silla Observatory in northern Chile. The asteroid was named after the second discoverer. The assumed S-type asteroid has a rotation period of 17 hours.

    10245 Inselsberg, provisional designation 6071 P-L, is a Gefion asteroid from the central regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 24 September 1960, by Ingrid and Cornelis van Houten at Leiden, and Tom Gehrels at Palomar Observatory in California, United States. The likely S-type asteroid was named for the German mountain Großer Inselsberg.

    145534 Jhongda, provisional designation 2006 GJ, is an asteroid and member of the stony Merxia family, orbiting in the central region of the asteroid belt, approximately 2–3 kilometers in diameter. It was discovered by Taiwanese astronomers Yang Tingzhang and Ye Quanzhi at the Lulin Observatory on 1 April 2006. The likely elongated asteroid has a rotation period of 4.5 hours. It was named for the Taiwanese National Central University.

    3714 Kenrussell, provisional designation 1983 TT1, is a Eunomian asteroid from the central regions of the asteroid belt, approximately 10 kilometers (6 miles) in diameter. It was discovered on 12 October 1983, by American astronomer Edward Bowell at the Anderson Mesa Station near Flagstaff, Arizona, in the United States. It was named for Australian astronomer Kenneth S. Russell. The presumably stony asteroid has a rotation period of 5.25 hours.

    <span class="mw-page-title-main">4001 Ptolemaeus</span>

    4001 Ptolemaeus, provisional designation 1949 PV, is a Florian asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 2 August 1949, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in Heidelberg, Germany. In 1991, the International Astronomical Union named the S-type asteroid after Greco-Roman astronomer Ptolemy.

    3790 Raywilson, provisional designation 1937 UE, is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt, approximately 12 kilometers in diameter. It was discovered on 26 October 1937, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in Heidelberg, Germany. The C-type asteroid has a rotation period of 4.65 hours. It was named for English physicist Raymond Wilson.

    <span class="mw-page-title-main">5208 Royer</span> Asteroid

    5208 Royer (prov. designation: 1989 CH1) is a stony Marian asteroid from the central regions of the asteroid belt, approximately 8 kilometers (5 miles) in diameter. It was discovered on 6 February 1989, by astronomer Eleanor Helin at the Palomar Observatory. The S-type asteroid has a rotation period of 3.87 hours and was named after American priest and amateur astronomer, Ronald Royer.

    <span class="mw-page-title-main">2384 Schulhof</span> Asteroid

    2384 Schulhof (prov. designation: 1943 EC1) is a mid-sized asteroid and the namesake of the Schulhof family, located in the Eunomian region of the intermediate asteroid belt. It was discovered on 2 March 1943, by French astronomer Marguerite Laugier at Nice Observatory in southeastern France. The asteroid was later named after Hungarian astronomer Lipót Schulhof. The presumed S-type asteroid has a short rotation period of 3.3 hours and measures approximately 12 kilometers (7.5 miles) in diameter.

    8306 Shoko, provisional designation 1995 DY1, is a Florian asteroid and a synchronous binary system from the inner regions of the asteroid belt, approximately 3 kilometers (2 miles) in diameter. It was discovered on 24 February 1995, by Japanese astronomer Akimasa Nakamura at the Kuma Kogen Astronomical Observatory in southern Japan, who named it after Japanese singer-songwriter Shoko Sawada. The likely S-type asteroid has a rotation period of 3.35 hours. The discovery of its 1.3-kilometer minor-planet moon was announced in December 2013.

    <span class="mw-page-title-main">1400 Tirela</span>

    1400 Tirela is an asteroid and the parent body of the Tirela family, located in the outer regions of the asteroid belt. It was discovered on 17 November 1936, by French astronomer Louis Boyer at the Algiers Observatory in North Africa. The asteroid has a rotation period of 13.4 hours and measures approximately 16 kilometers in diameter. It was named after Charles Tirel, a friend of the discoverer.

    1947 Iso-Heikkilä, provisional designation 1935 EA, is a carbonaceous Eos asteroid from the outer region of the asteroid belt, approximately 30 kilometers in diameter. It was discovered on 4 March 1935, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland. It was named after the location of the discovering observatory, which is also known as the "Iso-Heikkilä Observatory".

    10140 Villon, provisional designation 1993 SX4, is a Nysian asteroid from the inner regions of the asteroid belt, approximately 5 kilometers (3 miles) in diameter. It was discovered on 19 September 1993, by Belgian astronomer Eric Elst at the CERGA Observatory at Caussols in France. It was named after 15th-century French poet François Villon.

    23327 Luchernandez, provisional designation 2001 BE31, is a Florian asteroid from the inner regions of the asteroid belt, approximately 2 kilometers in diameter. It was discovered on 20 January 2001, by astronomers of the LINEAR program at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, United States. The asteroid was named for ISEF awardee Lucero Hernandez.

    164589 La Sagra, provisional designation 2007 PC11, is an asteroid of the Euterpe family from the inner regions of the asteroid belt, approximately 1.2 kilometers (0.75 miles) in diameter. It was discovered on 11 August 2007, by astronomers of the Astronomical Observatory of Mallorca at its robotic La Sagra Observatory in Grenada, Spain. It was named after Mount La Sagra and the discovering La Sagra Observatory.

    7449 Döllen, provisional designation 1949 QL, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 3.5 kilometers in diameter. It was discovered on 21 August 1949, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The likely S-type asteroid has a rotation period of 10 hours. It was named after German astronomer Wilhelm Döllen.

    185638 Erwinschwab, provisional designation 2008 EU7, is a potentially sub-kilometer Nysian asteroid from the inner regions of the asteroid belt. It was discovered on 1 March 2008, by OAM-astronomers at the La Sagra Observatory in southern Spain. The asteroid is estimated to measure between 950 meters and 1.8 kilometers in diameter and was named after German astronomer Erwin Schwab in 2009.

    342843 Davidbowie, provisional designation 2008 YN3, is a Henan asteroid from the central region of the asteroid belt, approximately 1.4 kilometers in diameter.

    (39546) 1992 DT5 is a dark Hoffmeister asteroid and exceptionally slow rotator from the central region of the asteroid belt, approximately 5.3 kilometers (3.3 miles) in diameter. The likely elongated C-type asteroid was discovered on 29 February 1992, by the Uppsala–ESO Survey of Asteroids and Comets at ESO's La Silla astronomical observatory site in northern Chile.

    References

    1. 1 2 3 4 5 "JPL Small-Body Database Browser: 369623 (2011 DY5)" (2017-05-03 last obs.). Jet Propulsion Laboratory . Retrieved 3 March 2018.
    2. 1 2 "Asteroid (369623) 2011 DY5 – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 27 October 2019.
    3. 1 2 "Asteroid Size Estimator". CNEOS NASA/JPL. Retrieved 3 March 2018.
    4. 1 2 3 4 "369623 (2011 DY5)". Minor Planet Center. Retrieved 3 March 2018.
    5. 1 2 Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV. pp. 297–321. arXiv: 1502.01628 . Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN   9780816532131. S2CID   119280014.
    6. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 3 March 2018.