5951 Alicemonet

5951 Alicemonet

Discovery [1]
Discovered by	E. Bowell
Discovery site	Anderson Mesa Stn.
Discovery date	7 October 1986
Designations
MPC designation	(5951) Alicemonet
Named after	Alice Monet (American astronomer)[2]
Alternative designations	1986 TZ1 · 1973 SJ5 1983 XE1
Minor planet category	main-belt · Flora [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc	65.34 yr (23,867 days)
Aphelion	2.6774 AU
Perihelion	1.7183 AU
Semi-major axis	2.1979 AU
Eccentricity	0.2182
Orbital period (sidereal)	3.26 yr (1,190 days)
Mean anomaly	175.97°
Mean motion	0° 18^m 9^s / day
Inclination	5.3707°
Longitude of ascending node	88.382°
Argument of perihelion	286.18°
Earth MOID	0.7287 AU
Physical characteristics
Dimensions	5.894±0.040[4] 5.93 km (calculated)[3] 5.990±0.053 km[5]
Synodic rotation period	3.8871±0.0005 h[6]
Geometric albedo	0.24 (assumed)[3] 0.2840±0.0307[5] 0.293±0.040[4]
Spectral type	S [3]
Absolute magnitude (H)	13.2[1] · 13.1[5] · 13.19±0.17[7] · 13.3[3]

5951 Alicemonet, provisional designation 1986 TZ₁, is a stony Flora asteroid approximately 6 kilometres in diameter from the inner regions of the asteroid belt. It was discovered on 7 October 1986, by American astronomer Edward Bowell at Anderson Mesa Station of the Lowell Observatory in Flagstaff, Arizona.[8] The asteroid was named after American astronomer Alice Monet.[2]

Orbit and classification

Alicemonet is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun in the inner main-belt at a distance of 1.7–2.7 AU once every 3 years and 3 months (1,190 days). Its orbit has an eccentricity of 0.22 and an inclination of 5° with respect to the ecliptic.[1]

A first precovery was obtained at Palomar Observatory in 1952, extending the body's observation arc by 34 years prior to its official discovery observation at Anderson Mesa.[8]

Physical characteristics

Lightcurves

In September 2012, a rotational lightcurve of Alicemonet was obtained using the SARA telescope at Cerro Tololo, Chile.[6] The photometric observations gave a well-defined rotation period of 3.8871 hours with a brightness variation of 0.46 magnitude (U=3).[6]

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, Alicemonet measures between 5.89 and 5.99 kilometers in diameter and its surface has an albedo of 0.284 and 0.293, respectively.[4][5]

The Collaborative Asteroid Lightcurve Link assumes a stony albedo of 0.24 – derived from 8 Flora, the largest member and namesake of this orbital family – and calculates a diameter of 5.9 kilometers with an absolute magnitude of 13.3.[3]

Naming

This minor planet was named after American astronomer Alice K. B. Monet (born 1954) at the United States Naval Observatory Flagstaff Station and former chair of the Division on Dynamical Astronomy of the AAS. She contributed to the NEAR Shoemaker and Galileo Mission and is known for her numerous astrometric observations.[2] The approved naming citation was published by the Minor Planet Center on 1 July 1996 (M.P.C. 27460).[9]

References

1. "JPL Small-Body Database Browser: 5951 Alicemonet (1986 TZ1)" (2017-06-05 last obs.). Jet Propulsion Laboratory. Retrieved 21 June 2017.
2. Schmadel, Lutz D. (2007). "(5951) Alicemonet". Dictionary of Minor Planet Names – (5951) Alicemonet. Springer Berlin Heidelberg. p. 500. doi:10.1007/978-3-540-29925-7_5552. ISBN 978-3-540-00238-3.
3. "LCDB Data for (5951) Alicemonet". Asteroid Lightcurve Database (LCDB). Retrieved 12 May 2016.
4. Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv:1406.6645. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. Retrieved 5 December 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 12 May 2016.
6. Bin, Li; Zhao, Haibin; Hand, Xianming L.; Liu, Wenjuan; Sun, Luming; Shi, Jingjing; Gao, Shan; Zhou, Hongyan (January 2013). "Photometric Observation of 3024 Hainan, 3920 Aubignan, and 5951 Alicemonet". The Minor Planet Bulletin. 40 (1): 43–44. Bibcode:2013MPBu...40...43L. ISSN 1052-8091. Retrieved 21 December 2015.
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 12 May 2016.
8. "5951 Alicemonet (1986 TZ1)". Minor Planet Center. Retrieved 12 May 2016.
9. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 12 May 2016.

External links

• IAU: Individual Members – Alice K.B. Monet
• Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
• Dictionary of Minor Planet Names, Google books
• Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
• Discovery Circumstances: Numbered Minor Planets (5001)-(10000) – Minor Planet Center
• 5951 Alicemonet at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 5951 Alicemonet at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters