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JPL Small-Body Database Browser
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442818 (2013 AJ55)
Classification: Main-belt Asteroid          SPK-ID: 2442818
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1384269907908039 8.0731e-08  
a 2.620727462909497 4.7287e-08 au
q 2.257948046536117 2.191e-07 au
i 12.77087729645952 8.932e-06 deg
node 87.791497457861 4.3017e-05 deg
peri 293.3245868146098 5.889e-05 deg
M 252.762683530627 4.8443e-05 deg
tp 2459062.109409858958
(2020-Jul-31.60940986)
0.00021682 TDB
period 1549.641421665804
4.24
4.1941e-05
1.148e-07
d
yr
n .2323118077296967 6.2876e-09 deg/d
Q 2.983506879282877 5.3833e-08 au
  Orbit Determination Parameters
   # obs. used (total)      70  
   data-arc span      5258 days (14.40 yr)  
   first obs. used      2003-11-19  
   last obs. used      2018-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64467  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:09:32  

Additional Information
 Earth MOID = 1.29666 au 
 Jupiter MOID = 2.51082 au 
 T_jup = 3.356 
[ 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 16.8   n/a MPO437722  

442818 (2013 AJ55)          Discovered 2012-Dec-08 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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