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JPL Small-Body Database Browser
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442804 (2013 AJ28)
Classification: Main-belt Asteroid          SPK-ID: 2442804
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03994146237405052 1.1374e-07  
a 2.77644476040916 5.6415e-08 au
q 2.665549496477648 3.1661e-07 au
i 6.805542688716439 1.2065e-05 deg
node 143.7203669509574 6.7991e-05 deg
peri 218.8829596219165 0.00012824 deg
M 257.7309341230889 0.00011269 deg
tp 2459080.535958971843
(2020-Aug-19.03595897)		 0.00053594 TDB
period 1689.787070489699
4.63		 5.1503e-05
1.41e-07		 d
yr
n .2130445937757544 6.4934e-09 deg/d
Q 2.887340024340673 5.8669e-08 au
   Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      4691 days (12.84 yr)  
   first obs. used      2005-06-08  
   last obs. used      2018-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47258  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 06:32:53  

Additional Information
 Earth MOID = 1.66355 au 
 Jupiter MOID = 2.30125 au 
 T_jup = 3.324 
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[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO437722  

442804 (2013 AJ28)          Discovered 2005-Jun-08 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2013 AJ28 = 2005 LO31 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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