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JPL Small-Body Database Browser
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74122 (1998 QU54)
Classification: Main-belt Asteroid          SPK-ID: 2074122
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3255435730505737 3.9758e-08  
a 2.61845110062125 9.1956e-09 au
q 1.766031173466801 1.0635e-07 au
i 4.187715662491993 4.6861e-06 deg
node 316.2250449619569 4.5563e-05 deg
peri 34.35962817235258 4.6053e-05 deg
M 318.8107674965124 4.7136e-06 deg
tp 2458777.570546465019
(2019-Oct-21.07054646)
2.0349e-05 TDB
period 1547.622833759023
4.24
8.1526e-06
2.232e-08
d
yr
n .2326148155397756 1.2254e-09 deg/d
Q 3.470871027775699 1.2189e-08 au
  Orbit Determination Parameters
   # obs. used (total)      894  
   data-arc span      7787 days (21.32 yr)  
   first obs. used      1998-08-02  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46032  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:44:47  

Additional Information
 Earth MOID = .761027 au 
 Jupiter MOID = 1.97796 au 
 T_jup = 3.325 
[ 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 15.4   n/a MPO439560  

74122 (1998 QU54)          Discovered 1998-Aug-27 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QU54 = 2000 BZ44 = 2000 CB120 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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