(32496) 2000 WX182

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(32496) 2000 WX182
Discovery[1]
Discovered byLINEAR
Discovery siteLincoln Lab's ETS
Discovery date18 November 2000
Designations
(32496) 2000 WX182
2000 WX182
Minor planet category
Jupiter trojan[1][2]
Trojan[3] · background[4]
Orbital characteristics[2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc63.36 yr (23,141 d)
Aphelion5.6821 AU
Perihelion4.8579 AU
5.2700 AU
Eccentricity0.0782
12.10 yr (4,419 d)
198.44°
0° 4m 53.4s / day
Inclination30.465°
65.861°
275.57°
Jupiter MOID0.0682 AU
TJupiter2.7170
Physical characteristics
Mean diameter
48.02±0.903 km[5]
51.63±3.99 km[6]
23.34±0.01 h[7][a]
0.070±0.016[5]
0.080±0.013[6]
C (assumed)[8]
B–V = 0.760±0.060[9]
V–R = 0.460±0.040[9]
V–I = 0.950±0.027[8]
BR = 1.230±0.039[8]
Absolute magnitude (H)
9.80[6]
10.10[5]
10.2[1][2][8]

(32496) 2000 WX182, provisional designation 2000 WX182, is a Jupiter trojan from the Trojan camp, approximately 50 kilometers (31 miles) in diameter. It was discovered on 18 November 2000, by astronomers with the LINEAR program at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, in the United States.[1] The dark Jovian asteroid belongs the 100 largest Jupiter trojans and has a rotation period of 23.3 hours. It has not been named since its numbering in November 2001.[10]

Orbit and classification[]

2000 WX182 is a Jupiter trojan in a 1:1 orbital resonance with Jupiter. It is located in the trailering Trojan camp at the Gas Giant's L5 Lagrangian point, 60° behind its orbit (see Trojans in astronomy).[3] It is also a non-family asteroid of the Jovian background population.[4] It orbits the Sun at a distance of 4.9–5.7 AU once every 12 years and 1 month (4,419 days; semi-major axis of 5.27 AU). Its orbit has an eccentricity of 0.08 and an inclination of 30° with respect to the ecliptic.[2]

The body's observation arc begins with a precovery published by the Digitized Sky Survey and taken at Palomar Observatory in January 1955, more than 45 years prior to its official discovery observation at Socorro.[1]

Numbering and naming[]

This minor planet was numbered by the Minor Planet Center on 30 November 2001 (M.P.C. 44050).[10] As of 2018, it has not been named.[1]

Physical characteristics[]

2000 WX182 is an assumed, carbonaceous C-type asteroid.[8] Most Jupiter trojans are D-types, with the reminder being mostly C and P-type asteroids. It has a typical V–I color index of 0.95 and a BR color of 1.23 (also see table below).[8]

Rotation period[]

In November 2013, a rotational lightcurve of 2000 WX182 was obtained from eleven nights of photometric observations by Robert Stephens at the Center for Solar System Studies in Landers, California. Lightcurve analysis gave a rotation period of 23.34±0.01 hours with a brightness amplitude of 0.19 magnitude (U=3-).[7][8][a]

Diameter and albedo[]

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer and the Japanese Akari satellite, 2000 WX182 measures 48.02 and 51.63 kilometers in diameter and its surface has an albedo of 0.070 and 0.080, respectively.[5][6] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 50.77 kilometers based on an absolute magnitude of 10.2.[8]

100+ largest Jupiter trojans

Notes[]

  1. ^ Jump up to: a b Lightcurve plots of (32496) 2000 WX182 from Nov 2013 by Robert Stephens at the Center for Solar System Studies (U81). Quality code is not available(lightcurve rating at CS3). Summary figures at the LCDB and CS3.

References[]

  1. ^ Jump up to: a b c d e f "32496 (2000 WX182)". Minor Planet Center. Retrieved 27 June 2018.
  2. ^ Jump up to: a b c d "JPL Small-Body Database Browser: 32496 (2000 WX182)" (2018-05-25 last obs.). Jet Propulsion Laboratory. Retrieved 27 June 2018.
  3. ^ Jump up to: a b "List of Jupiter Trojans". Minor Planet Center. 1 June 2018. Retrieved 27 June 2018.
  4. ^ Jump up to: a b "Asteroid (32496) 2000 WX182 – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 27 June 2018.
  5. ^ Jump up to: a b c d Grav, T.; Mainzer, A. K.; Bauer, J. M.; Masiero, J. R.; Nugent, C. R. (November 2012). "WISE/NEOWISE Observations of the Jovian Trojan Population: Taxonomy". The Astrophysical Journal. 759 (1): 10. arXiv:1209.1549. Bibcode:2012ApJ...759...49G. doi:10.1088/0004-637X/759/1/49. S2CID 119101711. Retrieved 27 June 2018. (online catalog)
  6. ^ Jump up to: a b c d Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153)
  7. ^ Jump up to: a b Stephens, Robert D.; French, Linda M.; Davitt, Chelsea; Coley, Daniel R. (April 2014). "At the Scaean Gates: Observations Jovian Trojan Asteroids, July- December 2013". The Minor Planet Bulletin. 41 (2): 95–100. Bibcode:2014MPBu...41...95S. ISSN 1052-8091. Retrieved 27 June 2018.
  8. ^ Jump up to: a b c d e f g h "LCDB Data for (32496)". Asteroid Lightcurve Database (LCDB). Retrieved 27 June 2018.
  9. ^ Jump up to: a b Chatelain, Joseph P.; Henry, Todd J.; French, Linda M.; Winters, Jennifer G.; Trilling, David E. (June 2016). "Photometric colors of the brightest members of the Jupiter L5 Trojan cloud". Icarus. 271: 158���169. Bibcode:2016Icar..271..158C. doi:10.1016/j.icarus.2016.01.026. Retrieved 13 June 2016.
  10. ^ Jump up to: a b "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 27 June 2018.

External links[]

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