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JPL Small-Body Database Browser
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4360 Xuyi (1964 TG2)
Classification: Main-belt Asteroid          SPK-ID: 2004360
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1600547737519921 2.8407e-08  
a 2.598874706901324 9.5351e-09 au
q 2.182912403678458 7.3416e-08 au
i 2.506327437849077 4.3479e-06 deg
node 331.0788864969734 7.1423e-05 deg
peri 77.7089391180309 7.2999e-05 deg
M 79.43439680208087 1.4456e-05 deg
tp 2458662.837725334170
6.0957e-05 TDB
period 1530.299514737604
n .2352480651878976 1.2947e-09 deg/d
Q 3.01483701012419 1.1061e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2533  
   data-arc span      20290 days (55.55 yr)  
   first obs. used      1964-10-09  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43843  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:06:40  

Additional Information
 Earth MOID = 1.19469 au 
 Jupiter MOID = 2.3651 au 
 T_jup = 3.396 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1   n/a MPO347558  
diameter diameter 12.736 km 0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 5.939 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.090   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

4360 Xuyi           Discovered 1964 Oct. 9 at the Purple Mountain Observatory.
The Chinese words Xu Yi mean "to enjoy a distant view with eyes wide open". Xuyi is an ancient community some 100 km north-northwest of Nanjing. The Purple Mountain Observatory is now establishing an observing station there.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030806/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1964 TG2 = 1981 UN12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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