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18393 (1992 QB)
Classification: Main-belt Asteroid          SPK-ID: 2018393
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2267424888963521 6.7022e-08  
a 2.369437586986184 1.8024e-08 au
q 1.83218541122837 1.5732e-07 au
i 24.10963607201176 9.4785e-06 deg
node 55.64468005756694 1.6561e-05 deg
peri 243.5027867869605 2.6225e-05 deg
M 153.080797925627 2.3508e-05 deg
tp 2456834.020036175132
(2014-Jun-25.52003617)
8.4806e-05 JED
period 1332.190514685136
3.65
1.5201e-05
4.162e-08
d
yr
n .2702316193004018 3.0835e-09 deg/d
Q 2.906689762743998 2.2111e-08 au
  Orbit Determination Parameters
   # obs. used (total)      579  
   data-arc span      15093 days (41.32 yr)  
   first obs. used      1974-08-22  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55494  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:39:38  

Additional Information
 Earth MOID = .916628 au 
 Jupiter MOID = 2.44024 au 
 T_jup = 3.396 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2 mag n/a MPO263511  

18393 (1992 QB)          Discovered 1992-Aug-19 by McNaught, R. H. at Siding Spring
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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