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JPL Small-Body Database Browser
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71165 (1999 XJ202)
Classification: Main-belt Asteroid          SPK-ID: 2071165
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09707302918824594 5.2302e-08  
a 3.059102848963984 2.5365e-08 au
q 2.762146468816657 1.5744e-07 au
i 10.46641166972669 6.3915e-06 deg
node 310.1452036178516 2.6548e-05 deg
peri 163.9484469673349 4.0317e-05 deg
M 278.7674970027199 3.3387e-05 deg
tp 2459441.477954953285
(2021-Aug-14.97795495)
0.00018408 TDB
period 1954.292406679851
5.35
2.4306e-05
6.655e-08
d
yr
n .1842098954944026 2.2911e-09 deg/d
Q 3.356059229111311 2.7827e-08 au
  Orbit Determination Parameters
   # obs. used (total)      728  
   data-arc span      9004 days (24.65 yr)  
   first obs. used      1995-02-08  
   last obs. used      2019-10-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52821  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:24:56  

Additional Information
 Earth MOID = 1.78002 au 
 Jupiter MOID = 1.73431 au 
 T_jup = 3.202 
[ show covariance matrix ]

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 14.1   n/a MPO453117  
diameter diameter 4.902 km 0.348 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.088   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71165 (1999 XJ202)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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