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447903 (2007 XJ20)
Classification: Apollo [NEO]          SPK-ID: 2447903
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5996002705061315 8.5954e-08  
a 1.693850133837651 1.8204e-08 au
q .6782171353917484 1.4146e-07 au
i 10.63800623153002 9.8996e-06 deg
node 56.63188393395821 5.5207e-05 deg
peri 151.9148792434869 5.6345e-05 deg
M 173.2436466829819 1.8292e-05 deg
tp 2458613.005344334797
(2019-May-09.50534433)
3.9113e-05 TDB
period 805.2132283658293
2.20
1.298e-05
3.554e-08
d
yr
n .4470865446791227 7.2073e-09 deg/d
Q 2.709483132283554 2.9119e-08 au
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      5032 days (13.78 yr)  
   first obs. used      2005-10-28  
   last obs. used      2019-08-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61521  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Aug-12 05:33:38  

Additional Information
 Earth MOID = .149237 au 
 Jupiter MOID = 2.26672 au 
 T_jup = 3.969 
[ 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 18.5   n/a MPO232555  

447903 (2007 XJ20)          Discovered 2007-Dec-13 by LINEAR at Socorro
Reference: Last Updated: 2015-10-28

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