7517 Alisondoane

7517 Alisondoane (prov. designation: 1989 AD) is a dark background asteroid from the inner regions of the asteroid belt. It was discovered on 3 January 1989, by Japanese amateur astronomer Takuo Kojima at the YGCO Chiyoda Station in the northern Kantō region of Japan. The carbonaceous C-type asteroid has a rotation period of 9.7 hours and measures approximately 9 kilometers (5.6 miles) in diameter. It was named after Alison Doane (1958–2017), curator of astronomical photographs at the Harvard College Observatory.[1]

7517 Alisondoane
Alisondoane modeled from its lightcurve
Discovery [1]
Discovered byT. Kojima
Discovery siteChiyoda
Discovery date3 January 1989
Designations
(7517) Alisondoane
Named after
Alison Doane
(curator at Harvard Obs.)[2]
1989 AD · 1938 UV
1961 VJ · 1980 TF7
1982 FU3
Orbital characteristics [3]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc55.49 yr (20,268 days)
Aphelion3.0881 AU
Perihelion1.8040 AU
2.4461 AU
Eccentricity0.2625
3.83 yr (1,397 days)
197.29°
Inclination6.0528°
0.6039°
55.673°
Physical characteristics
Mean diameter
8.52±2.25 km[8]
9.146±0.207 km[9][10]
9.3±0.9 km[11]
9.31±0.56 km[12]
9.99±1.92 km[13]
9.701±0.001 h[lower-alpha 1]
  • (123.0°, −51.0°) (λ1/β1)[14]
  • (314.0°, −60.0°) (λ2/β2)[14]
0.04±0.01[13]
0.07±0.01[11]
0.08±0.05[8]
0.1215±0.0179[9][10]
0.128±0.018[12]
13.1[9][12] · 13.43±0.33[15] · 13.70[8][11] · 13.8[3][4] · 14.19[13]

    Orbit and classification

    Alisondoane is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements.[5][6][7] It orbits the Sun in the inner main-belt at a distance of 1.8–3.1 AU once every 3 years and 10 months (1,397 days). Its orbit has an eccentricity of 0.26 and an inclination of 6° with respect to the ecliptic.[3]

    Naming

    This minor planet was named in honor of Alison Doane (1958–2017), curator of astronomical photographs at the Harvard College Observatory. She was also principal oboe with the Boston Philharmonic Orchestra from 1982 to 2001.[1] The official naming citation was published by the Minor Planet Center on 25 December 2015 (M.P.C. 97567).[17]

    Physical characteristics

    Alisondoane has been characterized as a carbonaceous C-type asteroid by PanSTARRS photometric survey,[15] as well as by the Sloan Digital Sky Survey (SDSS).[16]

    Lightcurves

    A rotational lightcurve analysis by Czech astronomer Petr Pravec in 2007 rendered a rotation period of 9.701±0.001 hours with a high brightness amplitude of 1.13 in magnitude (U=3).[lower-alpha 1] A modeled lightcurves using photometric data from various sources, gave a sidereal period of 9.70943 hours and two spin axes of (123.0°, −51.0°) and (314.0°, −60.0°) in ecliptic coordinates (λ, β).[14]

    Diameter and albedo

    According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Alisondoane measures between 8.52 and 9.99 kilometers in diameter and its surface has an albedo between 0.04 and 0.122.[8][9][10][11][12][13] The Collaborative Asteroid Lightcurve Link (CALL) calculates a smaller diameter of 5.16 kilometers based on an assumed albedo of 0.18 for an X-type asteroid.[4][lower-alpha 2]

    Notes
    1. Pravec (2007): rotation period 9.701±0.001 hours with a brightness amplitude of 1.13 mag. CALL assigns a "Quality Code" of 3, which denotes a secure result within the precision given and no ambiguity. Summary figures for (7517) Alisondoane at Collaborative Asteroid Lightcurve Link (CALL)
    2. Summary Notes by the LCDB: "The Masi et al. paper gave this as a C-type on the basis of a neutral spectrum. However, given its location in the inner main belt, we adopted class X and a Pv = 0.18"

    References
    1. "7517 Alisondoane (1989 AD)". Minor Planet Center. Retrieved 7 February 2016.
    2. Schmadel, Lutz D. (2007). "(9448) Donaldavies". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 692. doi:10.1007/978-3-540-29925-7_7518. ISBN 978-3-540-00238-3.
    3. "JPL Small-Body Database Browser: 7517 Alisondoane (1989 AD)" (2017-05-05 last obs.). Jet Propulsion Laboratory. Retrieved 22 June 2017.
    4. "LCDB Data for (7517) Alisondoane". Asteroid Lightcurve Database (LCDB). Retrieved 7 February 2016.
    5. "Asteroid 7517 Alisondoane – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 23 March 2020.
    6. "Asteroid 7517 Alisondoane". Small Bodies Data Ferret. Retrieved 23 March 2020.
    7. Zappalà, V.; Bendjoya, Ph.; Cellino, A.; Farinella, P.; Froeschle, C. (1997). "Asteroid Dynamical Families". NASA Planetary Data System: EAR-A-5-DDR-FAMILY-V4.1. Retrieved 23 March 2020.} (PDS main page)
    8. Nugent, C. R.; Mainzer, A.; Masiero, J.; Bauer, J.; Cutri, R. M.; Grav, T.; et al. (December 2015). "NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos". The Astrophysical Journal. 814 (2): 13. arXiv:1509.02522. Bibcode:2015ApJ...814..117N. doi:10.1088/0004-637X/814/2/117. Retrieved 11 March 2017.
    9. 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.
    10. 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 11 March 2017.
    11. Alí-Lagoa, V.; Licandro, J.; Gil-Hutton, R.; Cañ; ada-Assandri, M.; Delbo', M.; et al. (June 2016). "Differences between the Pallas collisional family and similarly sized B-type asteroids". Astronomy and Astrophysics. 591: 11. Bibcode:2016A&A...591A..14A. doi:10.1051/0004-6361/201527660. Retrieved 11 March 2017.
    12. 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. Retrieved 17 October 2019. (online, AcuA catalog p. 153)
    13. Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T.; et al. (September 2016). "NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos". The Astronomical Journal. 152 (3): 12. arXiv:1606.08923. Bibcode:2016AJ....152...63N. doi:10.3847/0004-6256/152/3/63. Retrieved 11 March 2017.
    14. Hanuš, J.; Ďurech, J.; Oszkiewicz, D. A.; Behrend, R.; Carry, B.; Delbo, M.; et al. (February 2016). "New and updated convex shape models of asteroids based on optical data from a large collaboration network". Astronomy and Astrophysics. 586: A108. arXiv:1510.07422. Bibcode:2016A&A...586A.108H. doi:10.1051/0004-6361/201527441. ISSN 0004-6361. (DAMIT–online)
    15. 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 11 March 2017.
    16. Carvano, J. M.; Hasselmann, P. H.; Lazzaro, D.; Mothé-Diniz, T. (February 2010). "SDSS-based taxonomic classification and orbital distribution of main belt asteroids". Astronomy and Astrophysics. 510: 12. Bibcode:2010A&A...510A..43C. doi:10.1051/0004-6361/200913322. Retrieved 23 March 2020. (PDS data set)
    17. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 11 March 2017.
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