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390887 (2004 XX61)
Classification: Main-belt Asteroid          SPK-ID: 2390887
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1511852912749566 4.6844e-08  
a 2.466754745924658 1.6279e-08 au
q 2.093817711158157 1.1657e-07 au
i 6.617791521368272 3.6195e-06 deg
node 61.93179317564312 5.025e-05 deg
peri 309.9708442722641 5.3592e-05 deg
M 49.01039234903366 1.6833e-05 deg
tp 2458807.848203151856
(2019-Nov-20.34820315)
6.6599e-05 TDB
period 1415.100829461109
3.87
1.4009e-05
3.835e-08
d
yr
n .2543988332881504 2.5184e-09 deg/d
Q 2.839691780691159 1.8741e-08 au
  Orbit Determination Parameters
   # obs. used (total)      257  
   data-arc span      6469 days (17.71 yr)  
   first obs. used      2002-03-12  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51902  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:37:38  

Additional Information
 Earth MOID = 1.10183 au 
 Jupiter MOID = 2.63464 au 
 T_jup = 3.462 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO446658  

390887 (2004 XX61)          Discovered 2004-Nov-20 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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