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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3254689600321605 3.9515e-08  
a 2.61808106279622 9.0965e-09 au
q 1.765976942008041 1.0563e-07 au
i 4.188304663756639 4.5969e-06 deg
node 316.2189851996627 4.541e-05 deg
peri 34.41076577811997 4.5899e-05 deg
M 51.84313306218256 4.696e-06 deg
tp 2458777.676085397394
(2019-Oct-21.17608540)
2.0044e-05 TDB
period 1547.294781754863
4.24
8.0641e-06
2.208e-08
d
yr
n .2326641337158175 1.2126e-09 deg/d
Q 3.4701851835844 1.2057e-08 au
  Orbit Determination Parameters
   # obs. used (total)      932  
   data-arc span      7855 days (21.51 yr)  
   first obs. used      1998-08-02  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45826  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:11:15  

Additional Information
 Earth MOID = .761899 au 
 Jupiter MOID = 1.98238 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 15.5   n/a MPO502605  

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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