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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2268419246673475 6.7101e-08  
a 2.369795635769506 1.8741e-08 AU
q 1.832226632683271 1.578e-07 AU
i 24.10835570028528 1.0028e-05 deg
node 55.64634991296839 1.7501e-05 deg
peri 243.5500879447251 2.8067e-05 deg
M 44.9300838356443 2.3605e-05 deg
tp 2456834.197224249787
(2014-Jun-25.69722425)
8.6898e-05 JED
period 1332.492489644119
3.65
1.5807e-05
4.328e-08
d
yr
n .2701703782932003 3.2049e-09 deg/d
Q 2.907364638855741 2.2992e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      544  
   data-arc span      14612 days (40.01 yr)  
   first obs. used      1974-08-22  
   last obs. used      2014-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55836  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:37:28  

Additional Information
 Earth MOID = .919358 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 (413)
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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