51828 Ilanramon

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51828 Ilanramon
Discovery  [1]
Discovered by NEAT
Discovery site Palomar Obs.
Discovery date20 July 2001
Designations
(51828) Ilanramon
Named after
 Ilan Ramon   [2]
(Israeli astronaut)
2001 OU39
main-belt  ·(middle)
Gefion   [3]
Orbital characteristics   [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 26.95 yr (9,844 days)
Aphelion 3.1311 AU
Perihelion 2.4181 AU
2.7746 AU
Eccentricity 0.1285
4.62 yr (1,688 days)
76.382°
0° 12m 47.88s / day
Inclination 9.4769°
41.712°
42.469°
Physical characteristics
Dimensions5.549±0.904 km [4] [5]
9.24 km (calculated) [6]
3.61±0.43 h [7]
0.057 (assumed) [6]
0.1899±0.1093 [4] [5]
C (assumed) [6]
13.7 [5]  ·13.9 [1] [6]  ·14.03±0.35 [8]

    51828 Ilanramon, provisional designation 2001 OU39, is a Gefionian asteroid from the central regions of the asteroid belt, approximately 5.5 kilometers in diameter. It was discovered on 20 July 2001, by astronomers of the Near-Earth Asteroid Tracking program at Palomar Observatory in California, United States. The asteroid was named in memory of Israeli astronaut Ilan Ramon, who died in the Space Shuttle Columbia disaster. [9]

    Contents

    Orbit and classification

    Ilanramon is a member of the Gefion family ( 516 ), [3] a large asteroid family named after 1272 Gefion. [10] It orbits the Sun in the intermediate main-belt at a distance of 2.4–3.1  AU once every 4 years and 7 months (1,688 days; semi-major axis of 2.77 AU). Its orbit has an eccentricity of 0.13 and an inclination of 9° with respect to the ecliptic. [1]

    The asteroid's observation arc begins with a precovery from the Digitized Sky Survey taken at Palomar in May 1990, nearly 11 years prior to the body's official discovery observation. [9]

    Physical characteristics

    Ilanramon is an assumed C-type asteroid, [6] but its membership to the Gefion family and its relatively high albedo (see below) measured by the Wide-field Infrared Survey Explorer (WISE), indicate that it is likely a stony S-type asteroid. [10] : 23 

    Rotation period

    In February 2016, a rotational lightcurve of Ilanramon was obtained from photometric observations by a group of Hungarian astronomers based on the Kepler space telescope's K2-mission. Lightcurve analysis gave a short rotation period of 3.61 hours with a brightness amplitude of 0.88 magnitude, indicative for a non-spherical shape ( U=2 ). [7]

    Diameter and albedo

    According to the survey carried out by the NEOWISE mission of NASA's WISE telescope, Ilanramon measures 5.549 kilometers in diameter and its surface has an albedo of 0.1899, [4] [5] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and consequently calculates a larger diameter of 9.24 kilometers based on an absolute magnitude of 13.9. [6]

    Naming

    This minor planet was named after Israeli astronaut and payload specialist Ilan Ramon (1954–2003), who was killed in the Space Shuttle Columbia disaster on 1 February 2003. [2] The approved naming citation was published by the Minor Planet Center on 6 August 2003 ( M.P.C. 49283). [11]

    The following asteroids were also named in memory of the other six members of STS-107: 51823 Rickhusband, 51824 Mikeanderson, 51825 Davidbrown, 51826 Kalpanachawla, 51827 Laurelclark and 51829 Williemccool.

    Related Research Articles

    51826 Kalpanachawla, provisional designation 2001 OB34, is an Eoan asteroid in the outer region of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 19 July 2001, by astronomers of the Near-Earth Asteroid Tracking program at Palomar Observatory in California, United States. The asteroid was named for Indo-American astronaut and mission specialist Kalpana Chawla, who died in the Space Shuttle Columbia disaster.

    19367 Pink Floyd, provisional designation 1997 XW3, is a dark background asteroid from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 3 December 1997, by European astronomers of the ODAS survey at the CERGA Observatory near Caussols, France. The asteroid was named after the English rock band Pink Floyd.

    51825 Davidbrown, provisional designation 2001 OQ33, is an Eoan asteroid in the outer region of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 19 July 2001, by astronomers of the Near-Earth Asteroid Tracking program at Palomar Observatory in California, United States. The asteroid was named for American astronaut David Brown, who died in the Space Shuttle Columbia disaster.

    51824 Mikeanderson, provisional designation 2001 OE30, is an Eoan asteroid in the outer region of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 19 July 2001, by astronomers of the Near-Earth Asteroid Tracking program at Palomar Observatory in California, United States. The asteroid was named for American astronaut and mission payload commander Mike Anderson, who died in the Space Shuttle Columbia disaster.

    51823 Rickhusband, provisional designation 2001 OY28, is a dark Lixiaohua asteroid from the outer regions of the asteroid belt, approximately 9 kilometers in diameter.

    51827 Laurelclark, provisional designation 2001 OH38, is a background asteroid from the outer regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 20 July 2001, by astronomers of the Near-Earth Asteroid Tracking program at Palomar Observatory in California, United States. The asteroid was named for astronaut Laurel Clark, who died in the Space Shuttle Columbia disaster.

    1151 Ithaka, provisional designation 1929 RK, is a carbonaceous asteroid from the inner regions of the asteroid belt, approximately 14 kilometers in diameter. It was discovered by Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in 1929, and later named for the Greek island of Ithaca.

    <span class="mw-page-title-main">9983 Rickfienberg</span> Asteroid

    9983 Rickfienberg is a carbonaceous asteroid from the middle region of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 19 February 1995, by American astronomer Dennis di Cicco at his private Sudbury Observatory, Massachusetts, United States. It was named after American astronomer and editor Richard Fienberg.

    2751 Campbell, provisional designation 1962 RP, is a stony Nysian asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter.

    8900 AAVSO, provisional designation 1995 UD2, is a stony background asteroid from the central region of the asteroid belt, approximately 5.5 kilometers in diameter. It was discovered by American amateur astronomer Dennis di Cicco at the U.S Sudbury Observatory (817), Massachusetts, on 24 October 1995. The asteroid was named after the American Association of Variable Star Observers (AAVSO).

    9084 Achristou, provisional designation 1995 CS1, is a stony Hungaria asteroid from the innermost regions of the asteroid belt, about 1.9 kilometers in diameter. It was discovered by British astronomer David J. Asher at Siding Spring Observatory in New South Wales, Australia, on 3 February 1995. The asteroid was named after British planetary astronomer Apostolos Christou.

    17119 Alexisrodrz, provisional designation 1999 JP59, is a stony background asteroid from the central region of the asteroid belt, approximately 4 kilometers in diameter.

    58097 Alimov, provisional designation 1976 UQ1, is a background asteroid and relatively slow rotator from the central region of the asteroid belt, approximately 4 kilometers in diameter.

    3724 Annenskij, provisional designation 1979 YN8, is a stony Gefionian asteroid from the central regions of the asteroid belt, approximately 14 kilometers (9 miles) in diameter. It was discovered on 23 December 1979, by Soviet astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula. The S-type asteroid has a rotation period of 3.97 hours. It was named for Russian poet Innokenty Annensky.

    11277 Ballard, provisional designation 1988 TW2, is a Phocaea asteroid from the inner regions of the asteroid belt, approximately 6.3 kilometers (3.9 miles) in diameter. It was discovered on 8 October 1988, by American astronomer couple Carolyn and Eugene Shoemaker at the Palomar Observatory in California. The assumed S-type asteroid has a rotation period of at least 10 hours. It was named for American marine scientist Robert Ballard.

    17102 Begzhigitova, provisional designation 1999 JB41, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on 10 May 1999, by astronomers of the Lincoln Near-Earth Asteroid Research at the Lincoln Laboratory's Experimental Test Site in Socorro, New Mexico, United States. The asteroid was named after Akmaral Begzhigitova, an ISEF awardee of 2003.

    1272 Gefion, provisional designation 1931 TZ1, is a stony asteroid and parent body of the Gefion family from the central region of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 10 October 1931, by astronomer Karl Reinmuth at the Heidelberg Observatory in Germany. The asteroid was named after Gefjon from Norse mythology.

    2126 Gerasimovich, provisional designation 1970 QZ, is a stony background asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 30 August 1970, by Soviet astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula. The asteroid was named after Russian astronomer Boris Gerasimovich.

    3350 Scobee, provisional designation 1980 PJ, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on 8 August 1980 by American astronomer Edward Bowell at Lowell's Anderson Mesa Station near Flagstaff, Arizona. It was named for Dick Scobee, commander of the ill-fated Challenger crew.

    4760 Jia-xiang, provisional designation 1981 GN1, is a background asteroid from the inner regions of the asteroid belt, approximately 5 kilometers (3 miles) in diameter. It was discovered on 1 April 1981, by astronomers at Harvard University's Oak Ridge Observatory in Massachusetts, United States. The presumed stony S-type asteroid was named after Chinese astronomer Zhang Jiaxiang. It has a rotation period of 14.96 hours.

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 51828 Ilanramon (2001 OU39)" (2017-04-30 last obs.). Jet Propulsion Laboratory . Retrieved 28 December 2017.
    2. 1 2 Schmadel, Lutz D. (2006). "(51828) Ilanramon [2.77, 0.13, 9.5]". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 216. doi:10.1007/978-3-540-34361-5_2557. ISBN   978-3-540-34361-5.
    3. 1 2 "Asteroid 51828 Ilanramon – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 27 October 2019.
    4. 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv: 1109.4096 . Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. S2CID   118745497.
    5. 1 2 3 4 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv: 1109.6407 . Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. S2CID   118700974.
    6. 1 2 3 4 5 6 "LCDB Data for (51828) Ilanramon". Asteroid Lightcurve Database (LCDB). Retrieved 28 December 2017.
    7. 1 2 Molnár, L.; Pál, A.; Sárneczky, K.; Szabó, R.; Vinkó, J.; Szabó, Gy. M.; et al. (June 2017). "Main-belt Asteroids in the K 2 Uranus Field". The Astrophysical Journal Supplement Series. 234 (2): 37. arXiv: 1706.06056 . doi: 10.3847/1538-4365/aaa1a1 . S2CID   119423034.
    8. ↑ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv: 1506.00762 . Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. S2CID   53493339.
    9. 1 2 "51828 Ilanramon (2001 OU39)". Minor Planet Center. Retrieved 28 December 2017.
    10. 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   978-0-8165-3213-1. S2CID   119280014.
    11. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 28 December 2017.
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