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(120348) 2004 TY364, provisionally known as 2004 TY364, is a trans-Neptunian object. It is an inner classical Kuiper belt object in the definition by Gladman, Marsden, and Van Laerhoven (e<0.24).[2] Its inclination of almost 25 degrees disqualifies it as such in Marc Buie's definition[specify].[3] It is also not listed as a scattered disc object by the Minor Planet Center.[8] It was discovered by Michael E. Brown, Chad Trujillo and David L. Rabinowitz on October 3, 2004 at the Palomar Observatory.

(120348) 2004 TY364
Discovery
Discovered byM. E. Brown
C. Trujillo
D. L. Rabinowitz
Discovery sitePalomar Obs.
Discovery date3 October 2004
Designations
MPC designation
(120348) 2004 TY364
Minor planet category
TNO[1] · cubewano[2]
SCATEXTD[3]
Other[4]
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc11834 days (32.40 yr)
Earliest precovery date16 July 1983
Aphelion41.384 AU (6.1910 Tm)
Perihelion36.176 AU (5.4119 Tm)
Semi-major axis
38.780 AU (5.8014 Tm)
Eccentricity0.067140
Orbital period (sidereal)
241.50 yr (88208.5 d)
Mean anomaly
265.93°
Mean motion
0° 0m 14.692s / day
Inclination24.8499°
Longitude of ascending node
140.6141°
Time of perihelion
≈ 12 May 2079[5]
±6 days
Argument of perihelion
359.71°
Earth MOID35.1896 AU (5.26429 Tm)
Jupiter MOID30.8216 AU (4.61085 Tm)
Physical characteristics
Dimensions512+37
−40 km[6]
Synodic rotation period
11.70 h (0.488 d)[1]
Geometric albedo
0.107+0.020
−0.015[6]
Apparent magnitude
20.4[7]
Absolute magnitude (H)
4.520±0.070,[6] 4.8[1]

    Light-curve analysis suggests it is not a dwarf planet.[9]

    As of 2014, it is 39.2 AU from the Sun.[7]


    References


    1. "JPL Small-Body Database Browser: 120348 (2004 TY364)" (2005-09-01 last obs; arc: 22.13 years). Retrieved 7 April 2016.
    2. Nomenclature in the outer Solar System
    3. Marc W. Buie. "Orbit Fit and Astrometric record for 120348" (last observation: 2005-08-31 using 20 of 21 observations over 22 years). SwRI (Space Science Department). Retrieved 2014-11-13.
    4. "MPEC 2010-S44 :Distant Minor Planets (2010 OCT. 11.0 TT)". IAU Minor Planet Center. 2010-09-25. Retrieved 2014-11-16.
    5. JPL Horizons Observer Location: @sun (Perihelion occurs when deldot changes from negative to positive. Uncertainty in time of perihelion is 3-sigma.)
    6. Lellouch, E.; Santos-Sanz, P.; Lacerda, P.; Mommert, M.; Duffard, R.; Ortiz, J. L.; Müller, T. G.; Fornasier, S.; Stansberry, J.; Kiss, Cs.; Vilenius, E.; Mueller, M.; Peixinho, N.; Moreno, R.; Groussin, O.; Delsanti, A.; Harris, A. W. (September 2013). ""TNOs are Cool": A survey of the trans-Neptunian region. IX. Thermal properties of Kuiper belt objects and Centaurs from combined Herschel and Spitzer observations" (PDF). Astronomy & Astrophysics. 557: A60. arXiv:1202.3657. Bibcode:2013A&A...557A..60L. doi:10.1051/0004-6361/201322047. Retrieved 7 November 2014.
    7. "AstDys (120348) 2004TY364 Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 2009-12-10.
    8. "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. Retrieved 2014-11-13.
    9. Gonzalo Tancredi & Sofía Favre (13 October 2008). "Dwarf Planet & Plutoid Headquarters". Portal Uruguayo de Astronomía. Retrieved 2010-09-22. (Which are the dwarfs in the Solar System?)



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    [de] (120348) 2004 TY364

    (120348) 2004 TY364 ist ein großes transneptunisches Objekt, das bahndynamisch als erweitertes SDO eingestuft wird. Aufgrund seiner Größe ist der Asteroid ein Zwergplanetenkandidat.
    - [en] (120348) 2004 TY364

    [ru] (120348) 2004 TY364

    (120348) 2004 TY364 — транснептуновый объект, расположенный в поясе Койпера. Он был обнаружен группой Майкла Брауна 3 октября 2004 года в Паломарской обсерватории.


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