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(2008 XJ)
Classification: Mars-crossing Asteroid          SPK-ID: 3441026
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454803.5 (2008-Dec-03.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5235665424396472 0.0073259  
a 2.806293964007471 0.048795 au
q 1.337012336202828 0.0026946 au
i 24.57747818708826 0.14588 deg
node 81.06940481620623 0.086343 deg
peri 32.84649623514812 0.1434 deg
M 352.7704057594244 0.21101 deg
tp 2454837.983361309608
(2009-Jan-06.48336131)
0.16821 TDB
period 1717.110208175461
4.70
44.785
0.1226
d
yr
n .2096545686386216 0.0054682 deg/d
Q 4.275575591812115 0.074343 au
  Orbit Determination Parameters
   # obs. used (total)      14  
   data-arc span      6 days  
   first obs. used      2008-12-01  
   last obs. used      2008-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      9  
   norm. resid. RMS      .29931  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 02:22:10  

Additional Information
 Earth MOID = .396216 au 
 Jupiter MOID = 1.24292 au 
 T_jup = 2.992 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 21.1   n/a MPO149168  

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