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JPL Small-Body Database Browser
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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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06135351561687213 4.4197e-08  
a 2.384670228306787 1.215e-08 au
q 2.238362326213276 1.0252e-07 au
i 6.034075150769822 4.0714e-06 deg
node 274.0568472191 4.1205e-05 deg
peri 268.9249016483123 5.3704e-05 deg
M 138.0393588033146 3.3113e-05 deg
tp 2458484.747485484938
(2019-Jan-01.24748548)
0.00012411 TDB
period 1345.057720022995
3.68
1.0279e-05
2.814e-08
d
yr
n .267646506644968 2.0454e-09 deg/d
Q 2.530978130400297 1.2895e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1170  
   data-arc span      13590 days (37.21 yr)  
   first obs. used      1982-04-20  
   last obs. used      2019-07-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50836  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 19:01:05  

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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