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80578 (2000 AJ121)
Classification: Main-belt Asteroid          SPK-ID: 2080578
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06135351478703533 4.4228e-08  
a 2.384670228069663 1.2069e-08 au
q 2.238362327969587 1.0256e-07 au
i 6.034074729552868 4.0524e-06 deg
node 274.0568452368938 4.1166e-05 deg
peri 268.9249077150165 5.3356e-05 deg
M 138.0393547673788 3.2766e-05 deg
tp 2458484.747500641216
(2019-Jan-01.24750064)
0.00012274 TDB
period 1345.057719822373
3.68
1.0211e-05
2.796e-08
d
yr
n .2676465066848888 2.0319e-09 deg/d
Q 2.530978128169738 1.281e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1190  
   data-arc span      13981 days (38.28 yr)  
   first obs. used      1982-04-20  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49134  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:39:19  

Additional Information
 Earth MOID = 1.24997 au 
 Jupiter MOID = 2.46682 au 
 T_jup = 3.526 
[ 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 15.3   n/a MPO474696  

80578 (2000 AJ121)          Discovered 2000-Jan-05 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 2000 AJ121 = 2002 TR281 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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