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JPL Small-Body Database Browser
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74120 (1998 QJ53)
Classification: Main-belt Asteroid          SPK-ID: 2074120
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2154483429778447 5.3483e-08  
a 2.591473680865655 1.0879e-08 au
q 2.033144970452454 1.3383e-07 au
i 6.756734274724654 4.6761e-06 deg
node 323.7380275663538 4.4153e-05 deg
peri 21.60007736555093 4.5733e-05 deg
M 351.0453444677175 1.2302e-05 deg
tp 2458638.402251922929
(2019-Jun-03.90225192)
5.217e-05 TDB
period 1523.767234045274
4.17
9.5956e-06
2.627e-08
d
yr
n .2362565567473698 1.4878e-09 deg/d
Q 3.149802391278856 1.3223e-08 au
  Orbit Determination Parameters
   # obs. used (total)      898  
   data-arc span      8692 days (23.80 yr)  
   first obs. used      1996-02-16  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50354  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:24:32  

Additional Information
 Earth MOID = 1.02633 au 
 Jupiter MOID = 2.26741 au 
 T_jup = 3.377 
[ 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 15.0   n/a MPO502605  

74120 (1998 QJ53)          Discovered 1998-Aug-20 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QJ53 = 1996 DH6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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