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66966 (1999 XJ52)
Classification: Main-belt Asteroid          SPK-ID: 2066966
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09584154451331958 6.0142e-08  
a 3.125718300630722 2.3967e-08 au
q 2.826144630984725 1.8644e-07 au
i 12.41532293107735 3.7998e-06 deg
node 254.0550188107684 3.213e-05 deg
peri 290.1202201428535 4.0279e-05 deg
M 177.8364288557165 2.8199e-05 deg
tp 2458203.393819937458
(2018-Mar-25.89381994)
0.00015185 TDB
period 2018.474095168362
5.53
2.3215e-05
6.356e-08
d
yr
n .1783525490179611 2.0513e-09 deg/d
Q 3.425291970276719 2.6264e-08 au
  Orbit Determination Parameters
   # obs. used (total)      985  
   data-arc span      7703 days (21.09 yr)  
   first obs. used      1999-12-07  
   last obs. used      2021-01-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53011  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:26:18  

Additional Information
 Earth MOID = 1.85546 au 
 Jupiter MOID = 1.71976 au 
 T_jup = 3.172 
[ 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 13.97   n/a MPCxxxxx  

66966 (1999 XJ52)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XJ52 = 2000 YM21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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