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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2156279169194233 5.3324e-08  
a 2.592161231897285 1.0757e-08 au
q 2.033218905143987 1.3342e-07 au
i 6.756789210462694 4.486e-06 deg
node 323.7311350198683 4.3913e-05 deg
peri 21.65771312906739 4.5485e-05 deg
M 85.47687653213343 1.2432e-05 deg
tp 2458638.559162782699
(2019-Jun-04.05916278)
5.169e-05 TDB
period 1524.37368659868
4.17
9.4892e-06
2.598e-08
d
yr
n .2361625651012544 1.4701e-09 deg/d
Q 3.151103558650583 1.3077e-08 au
  Orbit Determination Parameters
   # obs. used (total)      969  
   data-arc span      8989 days (24.61 yr)  
   first obs. used      1996-02-16  
   last obs. used      2020-09-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49817  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:44:56  

Additional Information
 Earth MOID = 1.02734 au 
 Jupiter MOID = 2.26983 au 
 T_jup = 3.376 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456883.5 (2014-Aug-14.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2179037262702018 5.3599e-08  
q 2.026205688088288 1.345e-07 au
tp 2457113.925986473014
(2015-Apr-01.42598647)
4.7651e-05 TDB
node 323.9141245469855 4.3827e-05 deg
peri 21.33470684584055 4.5345e-05 deg
i 6.76728430771068 4.4923e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      969  
   data-arc span      8989 days (24.61 yr)  
   first obs. used      1996-02-16  
   last obs. used      2020-09-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49817  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:44:56  

Additional Information
 Jupiter MOID = 2.26983 au 
 T_jup = 3.376 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.872861447271562E-15 -7.199879638160622E-15 7.043991922033319E-13 7.843452398351637E-15 4.201422412622991E-14 -6.395031685603484E-15
q -7.199879638160622E-15 1.80900760215805E-14 -1.732616828898821E-12 -1.917596508877724E-14 -9.97161322774215E-14 1.619470785761966E-14
tp 7.043991922033319E-13 -1.732616828898821E-12 2.270571370719238E-9 4.082490566867797E-12 5.722828934187194E-10 -6.622708284485636E-12
node 7.843452398351637E-15 -1.917596508877724E-14 4.082490566867797E-12 1.920836512185599E-9 -1.906047489974646E-9 2.24714020628368E-11
peri 4.201422412622991E-14 -9.97161322774215E-14 5.722828934187194E-10 -1.906047489974646E-9 2.056210921681818E-9 -2.3819134826611E-11
i -6.395031685603484E-15 1.619470785761966E-14 -6.622708284485636E-12 2.24714020628368E-11 -2.3819134826611E-11 2.018096675190652E-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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