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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2265818938247622 6.7031e-08  
a 2.369752882814238 1.7706e-08 au
q 1.832809786729498 1.5735e-07 au
i 24.10844252260997 9.0968e-06 deg
node 55.63763142939608 1.6328e-05 deg
peri 243.4846467968513 2.5536e-05 deg
M 207.1591796912179 2.3579e-05 deg
tp 2458166.204816502028
(2018-Feb-16.70481650)
9.0155e-05 JED
period 1332.456431006399
3.65
1.4934e-05
4.089e-08
d
yr
n .2701776895835112 3.0281e-09 deg/d
Q 2.906695978898977 2.1718e-08 au
  Orbit Determination Parameters
   # obs. used (total)      599  
   data-arc span      15187 days (41.58 yr)  
   first obs. used      1974-08-22  
   last obs. used      2016-03-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55938  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:29:50  

Additional Information
 Earth MOID = .918248 au 
 Jupiter MOID = 2.44106 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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