4362 Carlisle

4362 Carlisle, provisional designation 1978 PR4, is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 1 August 1978, by staff members of the Perth Observatory at Bickley, Western Australia.[8] The asteroid was named after meteorite hunter Albert Carlisle.[2]

4362 Carlisle
Discovery [1]
Discovered byPerth Obs.
Discovery sitePerth Obs.
Discovery date1 August 1978
Designations
(4362) Carlisle
Named after
Albert Carlisle
(Australian meteorite hunter)[2]
1978 PR4 · 1974 FM1
1984 EE1
main-belt · Flora [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc64.61 yr (23,600 days)
Aphelion2.4660 AU
Perihelion2.0107 AU
2.2383 AU
Eccentricity0.1017
3.35 yr (1,223 days)
330.54°
0° 17m 39.48s / day
Inclination4.7152°
34.395°
172.16°
Physical characteristics
Dimensions5.20±0.23 km[4]
5.590±0.174 km[5][6]
6.51 km (calculated)[3]
0.24 (assumed)[3]
0.391±0.055[5][6]
0.412±0.064[4]
S [3]
12.9[5] · 13.00[4] · 13.1[1][3] · 13.32[7]

    Orbit and classification

    Carlisle is a member of the Flora family, one of the largest families in the main-belt. It orbits the Sun in the inner main-belt at a distance of 2.0–2.5 AU once every 3 years and 4 months (1,223 days). Its orbit has an eccentricity of 0.10 and an inclination of 5° with respect to the ecliptic.[1] The first precovery was taken at Mount Wilson Observatory in 1952, extending the body's observation arc by 26 years prior to its official discovery at Bickley.[8]

    Physical characteristics

    Carlisle has been characterized as a stony S-type asteroid.[3]

    Diameter and albedo

    According to the surveys carried out by NASA's Wide-field Infrared Survey Explorer and its subsequent NEOWISE mission, Carlisle measures 5.2 and 5.6 kilometers in diameter, based on a very high albedo of 0.41 and 0.39, respectively.[4][5][6] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – taken from the Flora family's largest member and namesake, the asteroid 8 Flora – and calculates a larger diameter of 6.5 kilometers.[3]

    Rotation period

    As of 2017, no rotational lightcurve has yet been obtained, and Carlisle's rotation period and shape remains unknown.[1][3]

    Naming

    This minor planet was named after meteorite hunter Albert John Carlisle (1917–1993), who lived in the Australian Outback. During the course of half a century, he collected more than 9,000 of these rocky or metallic debris on the Nullarbor Plain of Western Australia and was awarded the Medal of the Order of Australia for his scientific contribution in 1982.[2] The official naming citation was published by the Minor Planet Center on 29 November 1993 (M.P.C. 22829).[9]

    References
    1. "JPL Small-Body Database Browser: 4362 Carlisle (1978 PR4)" (2017-05-04 last obs.). Jet Propulsion Laboratory. Retrieved 20 June 2017.
    2. Schmadel, Lutz D. (2007). "(4362) Carlisle". Dictionary of Minor Planet Names – (4362) Carlisle. Springer Berlin Heidelberg. p. 374. doi:10.1007/978-3-540-29925-7_4313. ISBN 978-3-540-00238-3.
    3. "LCDB Data for (4362) Carlisle". Asteroid Lightcurve Database (LCDB). Retrieved 24 May 2016.
    4. Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 24 May 2016.
    5. 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. Retrieved 24 May 2016.
    6. 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. Retrieved 5 December 2016.
    7. 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. Retrieved 24 May 2016.
    8. "4362 Carlisle (1978 PR4)". Minor Planet Center. Retrieved 1 March 2016.
    9. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 24 May 2016.

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