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18351 (1990 QN5)
Classification: Main-belt Asteroid          SPK-ID: 2018351
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1724976968572727 6.9136e-08  
a 2.794764191552371 2.8952e-08 au
q 2.312673805250409 1.9667e-07 au
i 8.639210198175464 8.4184e-06 deg
node 345.1987565719594 4.0058e-05 deg
peri 40.67519023854038 4.4977e-05 deg
M 122.4986257439764 2.284e-05 deg
tp 2456819.809263630001
(2014-Jun-11.30926363)
0.00010522 JED
period 1706.538859710262
4.67
2.6518e-05
7.26e-08
d
yr
n .2109532976360827 3.278e-09 deg/d
Q 3.276854577854332 3.3946e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1002  
   data-arc span      9249 days (25.32 yr)  
   first obs. used      1990-08-22  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47227  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:39:32  

Additional Information
 Earth MOID = 1.32208 au 
 Jupiter MOID = 2.23027 au 
 T_jup = 3.289 
[ 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 13.2 mag n/a MPO358808  

18351 (1990 QN5)          Discovered 1990-Aug-29 by Holt, H. E. at Palomar
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 QN5 = 1997 DV 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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