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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .215627916926353 5.3324e-08  
a 2.592161231891504 1.0756e-08 au
q 2.03321890512149 1.3342e-07 au
i 6.756789187571802 4.4844e-06 deg
node 323.7311343784549 4.3788e-05 deg
peri 21.65771374122761 4.5354e-05 deg
M 85.47687655010932 1.2413e-05 deg
tp 2458638.559162707793
(2019-Jun-04.05916271)
5.1607e-05 TDB
period 1524.37368659358
4.17
9.488e-06
2.598e-08
d
yr
n .2361625651020445 1.4699e-09 deg/d
Q 3.151103558661518 1.3075e-08 au
  Orbit Determination Parameters
   # obs. used (total)      973  
   data-arc span      9038 days (24.74 yr)  
   first obs. used      1996-02-16  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49756  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:00:10  

Additional Information
 Earth MOID = 1.02734 au 
 Jupiter MOID = 2.26983 au 
 T_jup = 3.376 
[ 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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