51829 Williemccool

Last updated

51829 Williemccool
Discovery  [1]
Discovered by NEAT
Discovery site Palomar Obs.
Discovery date21 July 2001
Designations
(51829) Williemccool
Named after
 William C. McCool   [2]
(American astronaut)
2001 OD41 ·2000 AQ162
main-belt  ·(inner)
Vesta   [3]
Orbital characteristics   [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 21.28 yr (7,773 days)
Aphelion 2.4023 AU
Perihelion 2.1540 AU
2.2782 AU
Eccentricity 0.0545
3.44 yr (1,256 days)
331.36°
0° 17m 11.76s / day
Inclination 7.5659°
93.340°
119.31°
Physical characteristics
Dimensions1.9 km (est. at 0.40) [4]
0.40 (assumed) [4]
15.2 [1]

    51829 Williemccool, provisional designation 2001 OD41, is a Vestian asteroid from the inner regions of the asteroid belt, approximately 2 kilometers in diameter. It was discovered on 21 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 American astronaut and pilot William C. McCool, who died in the Space Shuttle Columbia disaster. [5]

    Contents

    Orbit and classification

    Williemccool is a member of the Vesta family ( 401 ). [3] Vestian asteroids have a composition akin to cumulate eucrites (HED meteorites) and are thought to have originated deep within 4 Vesta's crust, possibly from the Rheasilvia crater, a large impact crater on its southern hemisphere near the South pole, formed as a result of a subcatastrophic collision. Vesta is the main belt's second-largest and second-most-massive body after Ceres. [6] [7]

    It orbits the Sun in the inner main-belt at a distance of 2.2–2.4  AU once every 3 years and 5 months (1,256 days; semi-major axis of 2.28 AU). Its orbit has an eccentricity of 0.05 and an inclination of 8° with respect to the ecliptic. [1]

    The body's observation arc begins with a precovery taken by Spacewatch at Kitt Peak Observatory in December 1995, more than 6 years prior to its official discovery observation at Palomar. [5]

    Physical characteristics

    Rotation period

    As of 2017, no rotational lightcurve of Williemccool has been obtained from photometric observations. The asteroid's rotation period, poles and shape remain unknown. [1] [8]

    Diameter and albedo

    Williemccool has not been observed by any of the space-based surveys such as the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, IRAS or the Akari satellite. [1] A generic magnitude-to-diameter conversion gives a diameter of 1.9 kilometers based on an absolute magnitude of 15.2 and an assumed albedo 0.40, typical for members of the Vesta family. [4]

    Naming

    This minor planet was named in memory of William Cameron McCool (1961–2003), an American astronaut and pilot of STS-107, who died in the Space Shuttle Columbia disaster on 1 February 2003. The approved naming citation was published by the Minor Planet Center on 6 August 2003 ( M.P.C. 49283). [9]

    The following asteroids were named in memory of the other six Columbia crew members: 51823 Rickhusband, 51824 Mikeanderson, 51825 Davidbrown, 51826 Kalpanachawla, 51827 Laurelclark and 51828 Ilanramon. [2]

    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.

    3494 Purple Mountain, provisional designation 1980 XW, is a bright Vestian asteroid and a formerly lost minor planet from the inner regions of the asteroid belt, approximately 6.5 kilometers in diameter. First observed in 1962, it was officially discovered on 7 December 1980, by Chinese astronomers at the Purple Mountain Observatory in Nanking, China, and later named in honor of the discovering observatory. The V-type asteroid has a rotation period of 5.9 hours.

    3782 Celle, provisional designation 1986 TE, is a bright Vestian asteroid and asynchronous binary system from the inner regions of the asteroid belt, approximately 6.5 kilometers in diameter. It was discovered on 3 October 1986, by Danish astronomer Poul Jensen at the Brorfelde Observatory in Denmark and named after the German city of Celle. The V-type asteroid has a rotation period of 3.84 hours. The discovery of its 2.3-kilometer minor-planet moon was announced in 2003.

    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.

    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.

    1145 Robelmonte, provisional designation 1929 CC, is a Vestian asteroid from the inner regions of the asteroid belt, approximately 23 kilometers in diameter.

    10001 Palermo, provisional designation 1969 TM1, is a Vestian asteroid and a slow rotator from the inner regions of the asteroid belt, approximately 4 kilometers (2.5 miles) in diameter. It was discovered on 8 October 1969, by Soviet–Russian astronomer Lyudmila Chernykh using a 0.4-meter double astrograph at the Crimean Astrophysical Observatory in Nauchnij on the Crimean peninsula. The asteroid is likely elongated in shape and has a long rotation period of 213 hours. It was named for the Italian city of Palermo to commemorate the discovery of Ceres two hundred years earlier.

    <span class="mw-page-title-main">9951 Tyrannosaurus</span>

    9951 Tyrannosaurus, provisional designation 1990 VK5, is a stony Vestian asteroid from the inner regions of the asteroid belt, approximately 17 kilometers in diameter. It was discovered on 15 November 1990, by Belgian astronomer Eric Elst at ESO's La Silla Observatory in northern Chile. It was named after Tyrannosaurus, a genus of dinosaurs.

    14832 Alechinsky, provisional designation 1987 QC3, is a Vestian asteroid from the inner regions of the asteroid belt, approximately 4 kilometers (2.5 miles) in diameter. It was discovered on 27 August 1987, by Belgian astronomer Eric Elst at ESO's La Silla Observatory site in northern Chile. The highly elongated asteroid has a rotation period of 8.1 hours. It was named after Belgian painter Pierre Alechinsky.

    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.

    4022 Nonna, provisional designation 1981 TL4, is a Vestian asteroid from the inner regions of the asteroid belt, approximately 4 kilometers (2.5 miles) kilometers in diameter. It was discovered on 8 October 1981, by Soviet–Russian astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory. The asteroid was named after Soviet actress Nonna Mordyukova. The nearly fast rotator has an exceptionally low lightcurve-amplitude indicating a nearly spherical shape.

    19383 Rolling Stones, provisional designation 1998 BZ32, is a bright Vestian asteroid from the inner regions of the asteroid belt, approximately 2.7 kilometers (1.7 miles) in diameter. The V-type asteroid was discovered on 29 January 1998, by astronomers with the OCA–DLR Asteroid Survey at Caussols in southern France and named for the rock band The Rolling Stones.

    7794 Sanvito, provisional designation 1996 AD4, is a bright Vestian asteroid from the inner regions of the asteroid belt, approximately 4.6 kilometers (2.9 miles) in diameter. It was discovered on 15 January 1996, by Italian astronomers Ulisse Munari and Maura Tombelli at the Cima Ekar Observing Station in Tuscany, Italy. The likely V-type asteroid was named after Italian amateur astronomer Roberto di San Vito.

    <span class="mw-page-title-main">6257 Thorvaldsen</span>

    6257 Thorvaldsen, provisional designation 4098 T-1, is a bright Vestian asteroid from the inner regions of the asteroid belt, approximately 4.3 kilometers in diameter. It was discovered during the Palomar–Leiden Trojan survey on 26 March 1971, by Ingrid and Cornelis van Houten at Leiden, and Tom Gehrels at Palomar Observatory in California. The asteroid was named for Danish sculptor Bertel Thorvaldsen.

    51983 Hönig, provisional designation 2001 SZ8, is a Hildian asteroid from the outermost regions of the asteroid belt, approximately 13 kilometers in diameter. It was discovered on 19 September 2001, by astronomers Charles Juels and Paulo Holvorcem at the Fountain Hills Observatory (678) in Arizona, United States. The asteroid was named after German astronomer Sebastian Hönig.

    10244 Thüringer Wald, provisional designation 4668 P-L, is a Vestian asteroid from the inner regions of the asteroid belt, approximately 3.3 kilometers in diameter. It was discovered on 26 September 1960, by Ingrid and Cornelis van Houten at Leiden, and Tom Gehrels at Palomar Observatory in California, United States. The asteroid was named after the Thuringian Forest, a German mountain range.

    3703 Volkonskaya, provisional designation 1978 PU3, is a Vestian asteroid and asynchronous binary system from the inner regions of the asteroid belt, approximately 4 kilometers (2.5 miles) in diameter. It was discovered on 9 August 1978, by Soviet astronomers Lyudmila Chernykh and Nikolai Chernykh at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula. It was named by the discoverers after the Russian princess Mariya Volkonskaya. The V-type asteroid has a rotation period of 3.2 hours. The discovery of its 1.4-kilometer minor-planet moon was announced in December 2005.

    References

    1. 1 2 3 4 5 6 "JPL Small-Body Database Browser: 51829 Williemccool (2001 OD41)" (2017-03-26 last obs.). Jet Propulsion Laboratory . Retrieved 29 December 2017.
    2. 1 2 Schmadel, Lutz D. (2006). "(51829) Williemccool [2.28, 0.05, 7.6]". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 216. doi:10.1007/978-3-540-34361-5_2558. ISBN   978-3-540-34361-5.
    3. 1 2 "Asteroid 51829 Williemccool – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 27 October 2019.
    4. 1 2 3 "Asteroid Size Estimator". CNEOS NASA/JPL. Retrieved 29 December 2017.
    5. 1 2 "51829 Williemccool (2001 OD41)". Minor Planet Center. Retrieved 29 December 2017.
    6. ↑ 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.
    7. ↑ Kelley, Michael S.; Vilas, Faith; Gaffey, Michael J.; Abell, Paul A. (September 2003). "Quantified mineralogical evidence for a common origin of 1929 Kollaa with 4 Vesta and the HED meteorites". Icarus. 165 (1): 215–218. Bibcode:2003Icar..165..215K. doi:10.1016/S0019-1035(03)00149-0 . Retrieved 29 December 2017.
    8. ↑ "LCDB Data for (51829) Williemccool". Asteroid Lightcurve Database (LCDB). Retrieved 29 December 2017.
    9. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 29 December 2017.
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