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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456719.5 (2014-Mar-03.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2179319369315653 5.374e-08  
q 2.025916119640379 1.3495e-07 au
tp 2457113.989701322964
(2015-Apr-01.48970132)
4.7962e-05 TDB
node 323.9172022414216 4.4065e-05 deg
peri 21.36179893714914 4.5588e-05 deg
i 6.767185297738896 4.6828e-06 deg
  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
 Jupiter MOID = 2.26741 au 
 T_jup = 3.377 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.887949155735137E-15 -7.242786994744643E-15 6.907891954892575E-13 6.886009993565507E-15 4.161254175709723E-14 -6.572614325316972E-15
q -7.242786994744643E-15 1.821205947454724E-14 -1.692328655422894E-12 -1.662154045994047E-14 -9.795080368805868E-14 1.662654155535358E-14
tp 6.907891954892575E-13 -1.692328655422894E-12 2.300364338018993E-9 3.329570376745414E-12 5.784557595001423E-10 -6.938742687622045E-12
node 6.886009993565507E-15 -1.662154045994047E-14 3.329570376745414E-12 1.941690303587874E-9 -1.926925856545132E-9 2.730741577388495E-11
peri 4.161254175709723E-14 -9.795080368805868E-14 5.784557595001423E-10 -1.926925856545132E-9 2.078265116892646E-9 -2.86813592976858E-11
i -6.572614325316972E-15 1.662654155535358E-14 -6.938742687622045E-12 2.730741577388495E-11 -2.86813592976858E-11 2.192846079544974E-11

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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